gstreamer/gst/alpha/gstalpha.c

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A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2007> Wim Taymans <wim.taymans@collabora.co.uk>
* Copyright (C) <2007> Edward Hervey <edward.hervey@collabora.co.uk>
* Copyright (C) <2007> Jan Schmidt <thaytan@noraisin.net>
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstalpha.h"
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
#include <stdlib.h>
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
#include <string.h>
#include <math.h>
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
/* Generated by -bad/ext/cog/generate_tables */
static const int cog_ycbcr_to_rgb_matrix_8bit_hdtv[] = {
298, 0, 459, -63514,
298, -55, -136, 19681,
298, 541, 0, -73988,
};
static const int cog_ycbcr_to_rgb_matrix_8bit_sdtv[] = {
298, 0, 409, -57068,
298, -100, -208, 34707,
298, 516, 0, -70870,
};
static const gint cog_rgb_to_ycbcr_matrix_8bit_hdtv[] = {
47, 157, 16, 4096,
-26, -87, 112, 32768,
112, -102, -10, 32768,
};
static const gint cog_rgb_to_ycbcr_matrix_8bit_sdtv[] = {
66, 129, 25, 4096,
-38, -74, 112, 32768,
112, -94, -18, 32768,
};
static const gint cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit[] = {
256, -30, -53, 10600,
0, 261, 29, -4367,
0, 19, 262, -3289,
};
static const gint cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit[] = {
256, 25, 49, -9536,
0, 253, -28, 3958,
0, -19, 252, 2918,
};
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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/* Alpha signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
#define DEFAULT_METHOD ALPHA_METHOD_SET
#define DEFAULT_ALPHA 1.0
#define DEFAULT_TARGET_R 0
#define DEFAULT_TARGET_G 255
#define DEFAULT_TARGET_B 0
#define DEFAULT_ANGLE 20.0
#define DEFAULT_NOISE_LEVEL 2.0
#define DEFAULT_BLACK_SENSITIVITY 100
#define DEFAULT_WHITE_SENSITIVITY 100
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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enum
{
PROP_0,
PROP_METHOD,
PROP_ALPHA,
PROP_TARGET_R,
PROP_TARGET_G,
PROP_TARGET_B,
PROP_ANGLE,
PROP_NOISE_LEVEL,
PROP_BLACK_SENSITIVITY,
PROP_WHITE_SENSITIVITY,
PROP_LAST
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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};
static GstStaticPadTemplate gst_alpha_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") ";"
GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";"
GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA)
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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);
static GstStaticPadTemplate gst_alpha_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") ";" GST_VIDEO_CAPS_YUV ("I420")
2010-03-20 20:13:23 +00:00
";" GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_ABGR
";" GST_VIDEO_CAPS_RGBA
";" GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_xBGR
";" GST_VIDEO_CAPS_RGBx ";" GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_BGR)
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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);
static gboolean gst_alpha_start (GstBaseTransform * trans);
static gboolean gst_alpha_get_unit_size (GstBaseTransform * btrans,
GstCaps * caps, guint * size);
static GstCaps *gst_alpha_transform_caps (GstBaseTransform * btrans,
GstPadDirection direction, GstCaps * caps);
static gboolean gst_alpha_set_caps (GstBaseTransform * btrans,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn gst_alpha_transform (GstBaseTransform * btrans,
GstBuffer * in, GstBuffer * out);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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static void gst_alpha_init_params (GstAlpha * alpha);
static gboolean gst_alpha_set_process_function (GstAlpha * alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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static void gst_alpha_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_alpha_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
GST_BOILERPLATE (GstAlpha, gst_alpha, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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#define GST_TYPE_ALPHA_METHOD (gst_alpha_method_get_type())
static GType
gst_alpha_method_get_type (void)
{
static GType alpha_method_type = 0;
static const GEnumValue alpha_method[] = {
{ALPHA_METHOD_SET, "Set/adjust alpha channel", "set"},
{ALPHA_METHOD_GREEN, "Chroma Key green", "green"},
{ALPHA_METHOD_BLUE, "Chroma Key blue", "blue"},
{ALPHA_METHOD_CUSTOM, "Chroma Key on target_r/g/b", "custom"},
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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{0, NULL, NULL},
};
if (!alpha_method_type) {
alpha_method_type = g_enum_register_static ("GstAlphaMethod", alpha_method);
}
return alpha_method_type;
}
static void
gst_alpha_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (element_class, "Alpha filter",
"Filter/Effect/Video",
"Adds an alpha channel to video - uniform or via chroma-keying",
"Wim Taymans <wim@fluendo.com>\n"
"Edward Hervey <edward.hervey@collabora.co.uk>\n"
"Jan Schmidt <thaytan@noraisin.net>");
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_alpha_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_alpha_src_template));
GST_DEBUG_CATEGORY_INIT (gst_alpha_debug, "alpha", 0,
"alpha - Element for adding alpha channel to streams");
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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static void
gst_alpha_class_init (GstAlphaClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseTransformClass *btrans_class = (GstBaseTransformClass *) klass;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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gobject_class->set_property = gst_alpha_set_property;
gobject_class->get_property = gst_alpha_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_METHOD,
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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g_param_spec_enum ("method", "Method",
"How the alpha channels should be created", GST_TYPE_ALPHA_METHOD,
DEFAULT_METHOD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ALPHA,
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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g_param_spec_double ("alpha", "Alpha", "The value for the alpha channel",
0.0, 1.0, DEFAULT_ALPHA,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TARGET_R,
g_param_spec_uint ("target-r", "Target Red", "The Red target", 0, 255,
DEFAULT_TARGET_R,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TARGET_G,
g_param_spec_uint ("target-g", "Target Green", "The Green target", 0, 255,
DEFAULT_TARGET_G,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TARGET_B,
g_param_spec_uint ("target-b", "Target Blue", "The Blue target", 0, 255,
DEFAULT_TARGET_B,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ANGLE,
g_param_spec_float ("angle", "Angle", "Size of the colorcube to change",
0.0, 90.0, DEFAULT_ANGLE,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_NOISE_LEVEL,
g_param_spec_float ("noise-level", "Noise Level", "Size of noise radius",
0.0, 64.0, DEFAULT_NOISE_LEVEL,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_BLACK_SENSITIVITY, g_param_spec_uint ("black-sensitivity",
"Black Sensitivity", "Sensitivity to dark colors", 0, 128,
DEFAULT_BLACK_SENSITIVITY,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_WHITE_SENSITIVITY, g_param_spec_uint ("white-sensitivity",
"Sensitivity", "Sensitivity to bright colors", 0, 128,
DEFAULT_WHITE_SENSITIVITY,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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btrans_class->start = GST_DEBUG_FUNCPTR (gst_alpha_start);
btrans_class->transform = GST_DEBUG_FUNCPTR (gst_alpha_transform);
btrans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_alpha_get_unit_size);
btrans_class->transform_caps = GST_DEBUG_FUNCPTR (gst_alpha_transform_caps);
btrans_class->set_caps = GST_DEBUG_FUNCPTR (gst_alpha_set_caps);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
static void
gst_alpha_init (GstAlpha * alpha, GstAlphaClass * klass)
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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{
alpha->alpha = DEFAULT_ALPHA;
alpha->method = DEFAULT_METHOD;
alpha->target_r = DEFAULT_TARGET_R;
alpha->target_g = DEFAULT_TARGET_G;
alpha->target_b = DEFAULT_TARGET_B;
alpha->angle = DEFAULT_ANGLE;
alpha->noise_level = DEFAULT_NOISE_LEVEL;
alpha->black_sensitivity = DEFAULT_BLACK_SENSITIVITY;
alpha->white_sensitivity = DEFAULT_WHITE_SENSITIVITY;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
/* do we need this function? */
static void
gst_alpha_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAlpha *alpha = GST_ALPHA (object);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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GST_OBJECT_LOCK (alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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switch (prop_id) {
case PROP_METHOD:
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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alpha->method = g_value_get_enum (value);
switch (alpha->method) {
case ALPHA_METHOD_GREEN:
alpha->target_r = 0;
alpha->target_g = 255;
alpha->target_b = 0;
break;
case ALPHA_METHOD_BLUE:
alpha->target_r = 0;
alpha->target_g = 0;
alpha->target_b = 255;
break;
default:
break;
}
gst_alpha_set_process_function (alpha);
gst_alpha_init_params (alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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break;
case PROP_ALPHA:
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
alpha->alpha = g_value_get_double (value);
break;
case PROP_TARGET_R:
alpha->target_r = g_value_get_uint (value);
gst_alpha_init_params (alpha);
break;
case PROP_TARGET_G:
alpha->target_g = g_value_get_uint (value);
gst_alpha_init_params (alpha);
break;
case PROP_TARGET_B:
alpha->target_b = g_value_get_uint (value);
gst_alpha_init_params (alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
break;
case PROP_ANGLE:
alpha->angle = g_value_get_float (value);
gst_alpha_init_params (alpha);
break;
case PROP_NOISE_LEVEL:
alpha->noise_level = g_value_get_float (value);
gst_alpha_init_params (alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
break;
case PROP_BLACK_SENSITIVITY:
alpha->black_sensitivity = g_value_get_uint (value);
break;
case PROP_WHITE_SENSITIVITY:
alpha->white_sensitivity = g_value_get_uint (value);
break;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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static void
gst_alpha_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstAlpha *alpha = GST_ALPHA (object);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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switch (prop_id) {
case PROP_METHOD:
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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g_value_set_enum (value, alpha->method);
break;
case PROP_ALPHA:
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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g_value_set_double (value, alpha->alpha);
break;
case PROP_TARGET_R:
g_value_set_uint (value, alpha->target_r);
break;
case PROP_TARGET_G:
g_value_set_uint (value, alpha->target_g);
break;
case PROP_TARGET_B:
g_value_set_uint (value, alpha->target_b);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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break;
case PROP_ANGLE:
g_value_set_float (value, alpha->angle);
break;
case PROP_NOISE_LEVEL:
g_value_set_float (value, alpha->noise_level);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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break;
case PROP_BLACK_SENSITIVITY:
g_value_set_uint (value, alpha->black_sensitivity);
break;
case PROP_WHITE_SENSITIVITY:
g_value_set_uint (value, alpha->white_sensitivity);
break;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_alpha_get_unit_size (GstBaseTransform * btrans,
GstCaps * caps, guint * size)
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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{
GstVideoFormat format;
gint width, height;
if (!gst_video_format_parse_caps (caps, &format, &width, &height))
return FALSE;
*size = gst_video_format_get_size (format, width, height);
GST_DEBUG_OBJECT (btrans, "unit size = %d for format %d w %d height %d",
*size, format, width, height);
return TRUE;
}
static GstCaps *
gst_alpha_transform_caps (GstBaseTransform * btrans,
GstPadDirection direction, GstCaps * caps)
{
GstCaps *ret;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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GstStructure *structure;
gint i;
ret = gst_caps_new_empty ();
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for (i = 0; i < gst_caps_get_size (caps); i++) {
structure = gst_structure_copy (gst_caps_get_structure (caps, i));
gst_structure_remove_field (structure, "format");
gst_structure_remove_field (structure, "endianness");
gst_structure_remove_field (structure, "depth");
gst_structure_remove_field (structure, "bpp");
gst_structure_remove_field (structure, "red_mask");
gst_structure_remove_field (structure, "green_mask");
gst_structure_remove_field (structure, "blue_mask");
gst_structure_remove_field (structure, "alpha_mask");
gst_structure_remove_field (structure, "color-matrix");
gst_structure_remove_field (structure, "chroma-site");
gst_structure_set_name (structure, "video/x-raw-yuv");
gst_caps_append_structure (ret, gst_structure_copy (structure));
gst_structure_set_name (structure, "video/x-raw-rgb");
gst_caps_append_structure (ret, structure);
}
gst_caps_do_simplify (ret);
return ret;
}
static gboolean
gst_alpha_set_caps (GstBaseTransform * btrans,
GstCaps * incaps, GstCaps * outcaps)
{
GstAlpha *alpha = GST_ALPHA (btrans);
const gchar *matrix;
GST_OBJECT_LOCK (alpha);
if (!gst_video_format_parse_caps (incaps, &alpha->in_format,
&alpha->width, &alpha->height) ||
!gst_video_format_parse_caps (outcaps, &alpha->out_format,
&alpha->width, &alpha->height)) {
GST_OBJECT_UNLOCK (alpha);
return FALSE;
}
if (!gst_alpha_set_process_function (alpha)) {
GST_OBJECT_UNLOCK (alpha);
return FALSE;
}
matrix = gst_video_parse_caps_color_matrix (incaps);
alpha->in_sdtv = matrix ? g_str_equal (matrix, "sdtv") : TRUE;
matrix = gst_video_parse_caps_color_matrix (outcaps);
alpha->out_sdtv = matrix ? g_str_equal (matrix, "sdtv") : TRUE;
gst_alpha_init_params (alpha);
GST_OBJECT_UNLOCK (alpha);
return TRUE;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
/* based on http://www.cs.utah.edu/~michael/chroma/
*/
static inline gint
chroma_keying_yuv (gint a, gint * y, guint ny, gint * u,
gint * v, gint cr, gint cb, gint smin, gint smax, guint8 accept_angle_tg,
guint8 accept_angle_ctg, guint8 one_over_kc, guint8 kfgy_scale, gint8 kg,
guint noise_level2)
{
gint tmp, tmp1;
gint x1, y1;
gint x, z;
gint b_alpha;
for (tmp = 0; tmp < ny; tmp++) {
/* too dark or too bright, keep alpha */
if (y[tmp] < smin || y[tmp] > smax)
return a;
}
/* Convert foreground to XZ coords where X direction is defined by
the key color */
tmp = ((*u) * cb + (*v) * cr) >> 7;
x = CLAMP (tmp, -128, 127);
tmp = ((*v) * cb - (*u) * cr) >> 7;
z = CLAMP (tmp, -128, 127);
/* WARNING: accept angle should never be set greater than "somewhat less
than 90 degrees" to avoid dealing with negative/infinite tg. In reality,
80 degrees should be enough if foreground is reasonable. If this seems
to be a problem, go to alternative ways of checking point position
(scalar product or line equations). This angle should not be too small
either to avoid infinite ctg (used to suppress foreground without use of
division) */
tmp = (x * accept_angle_tg) >> 4;
tmp = MIN (tmp, 127);
if (abs (z) > tmp) {
/* keep foreground Kfg = 0 */
return a;
}
/* Compute Kfg (implicitly) and Kbg, suppress foreground in XZ coord
according to Kfg */
tmp = (z * accept_angle_ctg) >> 4;
tmp = CLAMP (tmp, -128, 127);
x1 = abs (tmp);
y1 = z;
tmp1 = x - x1;
tmp1 = MAX (tmp1, 0);
b_alpha = (tmp1 * one_over_kc) / 2;
b_alpha = 255 - CLAMP (b_alpha, 0, 255);
b_alpha = (a * b_alpha) >> 8;
tmp = (tmp1 * kfgy_scale) >> 4;
tmp1 = MIN (tmp, 255);
for (tmp = 0; tmp < ny; tmp++)
y[tmp] = (y[tmp] < tmp1) ? 0 : y[tmp] - tmp1;
/* Convert suppressed foreground back to CbCr */
tmp = (x1 * cb - y1 * cr) >> 7;
*u = CLAMP (tmp, -128, 127);
tmp = (x1 * cr + y1 * cb) >> 7;
*v = CLAMP (tmp, -128, 127);
/* Deal with noise. For now, a circle around the key color with
radius of noise_level treated as exact key color. Introduces
sharp transitions.
*/
tmp = z * z + (x - kg) * (x - kg);
tmp = MIN (tmp, 0xffff);
if (tmp < noise_level2)
b_alpha = 0;
return b_alpha;
}
#define APPLY_MATRIX(m,o,v1,v2,v3) ((m[o*4] * v1 + m[o*4+1] * v2 + m[o*4+2] * v3 + m[o*4+3]) >> 8)
2010-03-20 20:13:23 +00:00
#define CREATE_ARGB_AYUV_FUNCTIONS(name, A, R, G, B) \
static void \
gst_alpha_set_##name##_ayuv (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint s_alpha = CLAMP ((gint) (alpha->alpha * 256), 0, 256); \
gint i, j; \
gint matrix[12]; \
gint y, u, v; \
\
memcpy (matrix, \
alpha->out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv : \
cog_rgb_to_ycbcr_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
dest[0] = (src[A] * s_alpha) >> 8; \
\
y = APPLY_MATRIX (matrix, 0, src[R], src[G], src[B]); \
u = APPLY_MATRIX (matrix, 1, src[R], src[G], src[B]); \
v = APPLY_MATRIX (matrix, 2, src[R], src[G], src[B]); \
\
dest[1] = y; \
dest[2] = u; \
dest[3] = v; \
\
dest += 4; \
src += 4; \
} \
} \
} \
\
static void \
gst_alpha_chroma_key_##name##_ayuv (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint i, j; \
gint a, y, u, v; \
gint r, g, b; \
gint smin, smax; \
gint pa = CLAMP ((gint) (alpha->alpha * 256), 0, 256); \
gint8 cb = alpha->cb, cr = alpha->cr; \
gint8 kg = alpha->kg; \
guint8 accept_angle_tg = alpha->accept_angle_tg; \
guint8 accept_angle_ctg = alpha->accept_angle_ctg; \
guint8 one_over_kc = alpha->one_over_kc; \
guint8 kfgy_scale = alpha->kfgy_scale; \
guint noise_level2 = alpha->noise_level2; \
gint matrix[12]; \
\
smin = 128 - alpha->black_sensitivity; \
smax = 128 + alpha->white_sensitivity; \
\
memcpy (matrix, \
alpha->out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv : \
cog_rgb_to_ycbcr_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
a = (src[A] * pa) >> 8; \
r = src[R]; \
g = src[G]; \
b = src[B]; \
\
y = APPLY_MATRIX (matrix, 0, r, g, b); \
u = APPLY_MATRIX (matrix, 1, r, g, b) - 128; \
v = APPLY_MATRIX (matrix, 2, r, g, b) - 128; \
\
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, \
smin, smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
dest[0] = a; \
dest[1] = y; \
dest[2] = u; \
dest[3] = v; \
\
src += 4; \
dest += 4; \
} \
} \
}
2010-03-20 20:13:23 +00:00
CREATE_ARGB_AYUV_FUNCTIONS (argb, 0, 1, 2, 3);
CREATE_ARGB_AYUV_FUNCTIONS (abgr, 0, 3, 2, 1);
CREATE_ARGB_AYUV_FUNCTIONS (rgba, 3, 0, 1, 2);
CREATE_ARGB_AYUV_FUNCTIONS (bgra, 3, 2, 1, 0);
2010-03-20 20:13:23 +00:00
#define CREATE_ARGB_ARGB_FUNCTIONS(name, name2, A, R, G, B, A2, R2, G2, B2) \
static void \
gst_alpha_set_##name##_##name2 (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint s_alpha = CLAMP ((gint) (alpha->alpha * 256), 0, 256); \
gint i, j; \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
dest[A2] = (src[A] * s_alpha) >> 8; \
\
dest[R2] = src[R]; \
dest[G2] = src[G]; \
dest[B2] = src[B]; \
\
dest += 4; \
src += 4; \
} \
} \
} \
\
static void \
gst_alpha_chroma_key_##name##_##name2 (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint i, j; \
gint a, y, u, v; \
gint r, g, b; \
gint smin, smax; \
gint pa = CLAMP ((gint) (alpha->alpha * 256), 0, 256); \
gint8 cb = alpha->cb, cr = alpha->cr; \
gint8 kg = alpha->kg; \
guint8 accept_angle_tg = alpha->accept_angle_tg; \
guint8 accept_angle_ctg = alpha->accept_angle_ctg; \
guint8 one_over_kc = alpha->one_over_kc; \
guint8 kfgy_scale = alpha->kfgy_scale; \
guint noise_level2 = alpha->noise_level2; \
gint matrix[12], matrix2[12]; \
\
smin = 128 - alpha->black_sensitivity; \
smax = 128 + alpha->white_sensitivity; \
\
memcpy (matrix, \
cog_rgb_to_ycbcr_matrix_8bit_sdtv, \
12 * sizeof (gint)); \
memcpy (matrix2, \
cog_ycbcr_to_rgb_matrix_8bit_sdtv, \
12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
a = (src[A] * pa) >> 8; \
r = src[R]; \
g = src[G]; \
b = src[B]; \
\
y = APPLY_MATRIX (matrix, 0, r, g, b); \
u = APPLY_MATRIX (matrix, 1, r, g, b) - 128; \
v = APPLY_MATRIX (matrix, 2, r, g, b) - 128; \
\
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, \
smin, smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix2, 0, y, u, v); \
g = APPLY_MATRIX (matrix2, 1, y, u, v); \
b = APPLY_MATRIX (matrix2, 2, y, u, v); \
\
dest[A2] = a; \
dest[R2] = CLAMP (r, 0, 255); \
dest[G2] = CLAMP (g, 0, 255); \
dest[B2] = CLAMP (b, 0, 255); \
\
src += 4; \
dest += 4; \
} \
} \
}
2010-03-20 20:13:23 +00:00
CREATE_ARGB_ARGB_FUNCTIONS (argb, argb, 0, 1, 2, 3, 0, 1, 2, 3);
CREATE_ARGB_ARGB_FUNCTIONS (argb, abgr, 0, 1, 2, 3, 0, 3, 2, 1);
CREATE_ARGB_ARGB_FUNCTIONS (argb, rgba, 0, 1, 2, 3, 3, 0, 1, 2);
CREATE_ARGB_ARGB_FUNCTIONS (argb, bgra, 0, 1, 2, 3, 3, 2, 1, 0);
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CREATE_ARGB_ARGB_FUNCTIONS (abgr, argb, 0, 3, 2, 1, 0, 1, 2, 3);
CREATE_ARGB_ARGB_FUNCTIONS (abgr, abgr, 0, 3, 2, 1, 0, 3, 2, 1);
CREATE_ARGB_ARGB_FUNCTIONS (abgr, rgba, 0, 3, 2, 1, 3, 0, 1, 2);
CREATE_ARGB_ARGB_FUNCTIONS (abgr, bgra, 0, 3, 2, 1, 3, 2, 1, 0);
2010-03-20 20:13:23 +00:00
CREATE_ARGB_ARGB_FUNCTIONS (rgba, argb, 3, 0, 1, 2, 0, 1, 2, 3);
CREATE_ARGB_ARGB_FUNCTIONS (rgba, abgr, 3, 0, 1, 2, 0, 3, 2, 1);
CREATE_ARGB_ARGB_FUNCTIONS (rgba, rgba, 3, 0, 1, 2, 3, 0, 1, 2);
CREATE_ARGB_ARGB_FUNCTIONS (rgba, bgra, 3, 0, 1, 2, 3, 2, 1, 0);
CREATE_ARGB_ARGB_FUNCTIONS (bgra, argb, 3, 2, 1, 0, 0, 1, 2, 3);
CREATE_ARGB_ARGB_FUNCTIONS (bgra, abgr, 3, 2, 1, 0, 0, 3, 2, 1);
CREATE_ARGB_ARGB_FUNCTIONS (bgra, rgba, 3, 2, 1, 0, 3, 0, 1, 2);
CREATE_ARGB_ARGB_FUNCTIONS (bgra, bgra, 3, 2, 1, 0, 3, 2, 1, 0);
#define CREATE_AYUV_ARGB_FUNCTIONS(name, A, R, G, B) \
static void \
gst_alpha_set_ayuv_##name (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint s_alpha = CLAMP ((gint) (alpha->alpha * 256), 0, 256); \
gint y, x; \
gint matrix[12]; \
gint r, g, b; \
\
memcpy (matrix, \
alpha->in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv : \
cog_ycbcr_to_rgb_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (y = 0; y < height; y++) { \
for (x = 0; x < width; x++) { \
dest[A] = (src[0] * s_alpha) >> 8; \
\
r = APPLY_MATRIX (matrix, 0, src[1], src[2], src[3]); \
g = APPLY_MATRIX (matrix, 1, src[1], src[2], src[3]); \
b = APPLY_MATRIX (matrix, 2, src[1], src[2], src[3]); \
\
dest[R] = CLAMP (r, 0, 255); \
dest[G] = CLAMP (g, 0, 255); \
dest[B] = CLAMP (b, 0, 255); \
\
dest += 4; \
src += 4; \
} \
} \
} \
\
static void \
gst_alpha_chroma_key_ayuv_##name (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint i, j; \
gint a, y, u, v; \
gint r, g, b; \
gint smin, smax; \
gint pa = CLAMP ((gint) (alpha->alpha * 256), 0, 256); \
gint8 cb = alpha->cb, cr = alpha->cr; \
gint8 kg = alpha->kg; \
guint8 accept_angle_tg = alpha->accept_angle_tg; \
guint8 accept_angle_ctg = alpha->accept_angle_ctg; \
guint8 one_over_kc = alpha->one_over_kc; \
guint8 kfgy_scale = alpha->kfgy_scale; \
guint noise_level2 = alpha->noise_level2; \
gint matrix[12]; \
\
smin = 128 - alpha->black_sensitivity; \
smax = 128 + alpha->white_sensitivity; \
\
memcpy (matrix, \
alpha->in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv : \
cog_ycbcr_to_rgb_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
a = (src[0] * pa) >> 8; \
y = src[1]; \
u = src[2] - 128; \
v = src[3] - 128; \
\
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, \
smin, smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix, 0, y, u, v); \
g = APPLY_MATRIX (matrix, 1, y, u, v); \
b = APPLY_MATRIX (matrix, 2, y, u, v); \
\
dest[A] = a; \
dest[R] = CLAMP (r, 0, 255); \
dest[G] = CLAMP (g, 0, 255); \
dest[B] = CLAMP (b, 0, 255); \
\
src += 4; \
dest += 4; \
} \
} \
}
CREATE_AYUV_ARGB_FUNCTIONS (argb, 0, 1, 2, 3);
CREATE_AYUV_ARGB_FUNCTIONS (abgr, 0, 3, 2, 1);
CREATE_AYUV_ARGB_FUNCTIONS (rgba, 3, 0, 1, 2);
CREATE_AYUV_ARGB_FUNCTIONS (bgra, 3, 2, 1, 0);
2010-03-20 20:13:23 +00:00
static void
gst_alpha_set_ayuv_ayuv (const guint8 * src, guint8 * dest, gint width,
gint height, GstAlpha * alpha)
{
gint s_alpha = CLAMP ((gint) (alpha->alpha * 256), 0, 256);
gint y, x;
if (alpha->in_sdtv == alpha->out_sdtv) {
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
dest[0] = (src[0] * s_alpha) >> 8;
dest[1] = src[1];
dest[2] = src[2];
dest[3] = src[3];
dest += 4;
src += 4;
}
}
} else {
gint matrix[12];
memcpy (matrix,
alpha->out_sdtv ? cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit :
cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit, 12 * sizeof (gint));
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
dest[0] = (src[0] * s_alpha) >> 8;
dest[1] = APPLY_MATRIX (matrix, 0, src[1], src[2], src[3]);
dest[2] = APPLY_MATRIX (matrix, 1, src[1], src[2], src[3]);
dest[3] = APPLY_MATRIX (matrix, 2, src[1], src[2], src[3]);
dest += 4;
src += 4;
}
}
}
}
static void
gst_alpha_chroma_key_ayuv_ayuv (const guint8 * src, guint8 * dest,
gint width, gint height, GstAlpha * alpha)
{
gint i, j;
gint a, y, u, v;
gint smin, smax;
gint pa = CLAMP ((gint) (alpha->alpha * 256), 0, 256);
gint8 cb = alpha->cb, cr = alpha->cr;
gint8 kg = alpha->kg;
guint8 accept_angle_tg = alpha->accept_angle_tg;
guint8 accept_angle_ctg = alpha->accept_angle_ctg;
guint8 one_over_kc = alpha->one_over_kc;
guint8 kfgy_scale = alpha->kfgy_scale;
guint noise_level2 = alpha->noise_level2;
smin = 128 - alpha->black_sensitivity;
smax = 128 + alpha->white_sensitivity;
if (alpha->in_sdtv == alpha->out_sdtv) {
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
a = (src[0] * pa) >> 8;
y = src[1];
u = src[2] - 128;
v = src[3] - 128;
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb,
smin, smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest[0] = a;
dest[1] = y;
dest[2] = u;
dest[3] = v;
src += 4;
dest += 4;
}
}
} else {
gint matrix[12];
memcpy (matrix,
alpha->out_sdtv ? cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit :
cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit, 12 * sizeof (gint));
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
a = (src[0] * pa) >> 8;
y = APPLY_MATRIX (matrix, 0, src[1], src[2], src[3]);
u = APPLY_MATRIX (matrix, 1, src[1], src[2], src[3]) - 128;
v = APPLY_MATRIX (matrix, 2, src[1], src[2], src[3]) - 128;
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb,
smin, smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest[0] = a;
dest[1] = y;
dest[2] = u;
dest[3] = v;
src += 4;
dest += 4;
}
}
}
}
#define CREATE_I420_ARGB_FUNCTIONS(name, A, R, G, B) \
static void \
gst_alpha_set_i420_##name (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint b_alpha = CLAMP ((gint) (alpha->alpha * 255), 0, 255); \
const guint8 *srcY; \
const guint8 *srcU; \
const guint8 *srcV; \
gint i, j; \
gint src_wrap, src_uv_wrap; \
gint y_stride, uv_stride; \
gboolean odd_width; \
gint matrix[12]; \
gint r, g, b; \
\
y_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 0, width); \
uv_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 1, width); \
\
src_wrap = y_stride - width; \
src_uv_wrap = uv_stride - (width / 2); \
\
srcY = src; \
srcU = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420, \
1, width, height); \
srcV = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420, \
2, width, height); \
\
odd_width = (width % 2 != 0); \
\
memcpy (matrix, \
alpha->in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv : \
cog_ycbcr_to_rgb_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width / 2; j++) { \
dest[A] = b_alpha; \
r = APPLY_MATRIX (matrix, 0, srcY[0], srcU[0], srcV[0]); \
g = APPLY_MATRIX (matrix, 1, srcY[0], srcU[0], srcV[0]); \
b = APPLY_MATRIX (matrix, 2, srcY[0], srcU[0], srcV[0]); \
dest[R] = CLAMP (r, 0, 255); \
dest[G] = CLAMP (g, 0, 255); \
dest[B] = CLAMP (b, 0, 255); \
\
dest[4 + A] = b_alpha; \
r = APPLY_MATRIX (matrix, 0, srcY[1], srcU[0], srcV[0]); \
g = APPLY_MATRIX (matrix, 1, srcY[1], srcU[0], srcV[0]); \
b = APPLY_MATRIX (matrix, 2, srcY[1], srcU[0], srcV[0]); \
dest[4 + R] = CLAMP (r, 0, 255); \
dest[4 + G] = CLAMP (g, 0, 255); \
dest[4 + B] = CLAMP (b, 0, 255); \
\
dest += 8; \
srcY += 2; \
srcU++; \
srcV++; \
} \
/* Might have one odd column left to do */ \
if (odd_width) { \
dest[A] = b_alpha; \
r = APPLY_MATRIX (matrix, 0, srcY[0], srcU[0], srcV[0]); \
g = APPLY_MATRIX (matrix, 1, srcY[0], srcU[0], srcV[0]); \
b = APPLY_MATRIX (matrix, 2, srcY[0], srcU[0], srcV[0]); \
dest[R] = CLAMP (r, 0, 255); \
dest[G] = CLAMP (g, 0, 255); \
dest[B] = CLAMP (b, 0, 255); \
\
dest += 4; \
srcY++; \
} \
if (i % 2 == 0) { \
srcU -= width / 2; \
srcV -= width / 2; \
} else { \
srcU += src_uv_wrap; \
srcV += src_uv_wrap; \
} \
srcY += src_wrap; \
} \
} \
\
static inline void \
gst_alpha_chromakey_row_i420_##name (GstAlpha * alpha, guint8 * dest1, \
guint8 * dest2, const guint8 * srcY1, const guint8 * srcY2, \
const guint8 * srcU, const guint8 * srcV, gint width) \
{ \
gint xpos; \
gint a, a2, u, v; \
gint r, g, b; \
gint smin, smax; \
gint8 cb = alpha->cb, cr = alpha->cr; \
gint8 kg = alpha->kg; \
guint8 accept_angle_tg = alpha->accept_angle_tg; \
guint8 accept_angle_ctg = alpha->accept_angle_ctg; \
guint8 one_over_kc = alpha->one_over_kc; \
guint8 kfgy_scale = alpha->kfgy_scale; \
guint noise_level2 = alpha->noise_level2; \
gint matrix[12], y; \
\
a = CLAMP ((gint) (alpha->alpha * 255), 0, 255); \
smin = 128 - alpha->black_sensitivity; \
smax = 128 + alpha->white_sensitivity; \
\
memcpy (matrix, \
alpha->in_sdtv ? cog_ycbcr_to_rgb_matrix_8bit_sdtv : \
cog_ycbcr_to_rgb_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (xpos = 0; xpos < width / 2; xpos++) { \
y = srcY1[0]; \
u = srcU[0] - 128; \
v = srcV[0] - 128; \
\
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin, \
smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix, 0, y, u, v); \
g = APPLY_MATRIX (matrix, 1, y, u, v); \
b = APPLY_MATRIX (matrix, 2, y, u, v); \
\
dest1[A] = a2; \
dest1[R] = CLAMP (r, 0, 255); \
dest1[G] = CLAMP (g, 0, 255); \
dest1[B] = CLAMP (b, 0, 255); \
\
y = srcY1[1]; \
u = srcU[0] - 128; \
v = srcV[0] - 128; \
\
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin, \
smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix, 0, y, u, v); \
g = APPLY_MATRIX (matrix, 1, y, u, v); \
b = APPLY_MATRIX (matrix, 2, y, u, v); \
\
dest1[4 + A] = a2; \
dest1[4 + R] = CLAMP (r, 0, 255); \
dest1[4 + G] = CLAMP (g, 0, 255); \
dest1[4 + B] = CLAMP (b, 0, 255); \
\
y = srcY2[0]; \
u = srcU[0] - 128; \
v = srcV[0] - 128; \
\
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin, \
smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix, 0, y, u, v); \
g = APPLY_MATRIX (matrix, 1, y, u, v); \
b = APPLY_MATRIX (matrix, 2, y, u, v); \
\
dest2[A] = a2; \
dest2[R] = CLAMP (r, 0, 255); \
dest2[G] = CLAMP (g, 0, 255); \
dest2[B] = CLAMP (b, 0, 255); \
\
y = srcY2[1]; \
u = srcU[0] - 128; \
v = srcV[0] - 128; \
\
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin, \
smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix, 0, y, u, v); \
g = APPLY_MATRIX (matrix, 1, y, u, v); \
b = APPLY_MATRIX (matrix, 2, y, u, v); \
\
dest2[4 + A] = a2; \
dest2[4 + R] = CLAMP (r, 0, 255); \
dest2[4 + G] = CLAMP (g, 0, 255); \
dest2[4 + B] = CLAMP (b, 0, 255); \
\
srcY1 += 2; \
srcY2 += 2; \
srcU++; \
srcV++; \
dest1 += 8; \
dest2 += 8; \
} \
} \
\
static void \
gst_alpha_chroma_key_i420_##name (const guint8 * src, guint8 * dest, \
gint width, gint height, GstAlpha * alpha) \
{ \
const guint8 *srcY1, *srcY2, *srcU, *srcV; \
guint8 *dest1, *dest2; \
gint ypos; \
gint dest_stride, src_y_stride, src_uv_stride; \
\
dest_stride = \
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_AYUV, 0, width); \
src_y_stride = \
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 0, width); \
src_uv_stride = \
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 1, width); \
\
srcY1 = src; \
srcY2 = src + src_y_stride; \
\
srcU = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420, \
1, width, height); \
srcV = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420, \
2, width, height); \
\
dest1 = dest; \
dest2 = dest + dest_stride; \
\
/* Redefine Y strides to skip 2 lines at a time ... */ \
dest_stride *= 2; \
src_y_stride *= 2; \
\
for (ypos = 0; ypos < height / 2; ypos++) { \
gst_alpha_chromakey_row_i420_##name (alpha, dest1, dest2, \
srcY1, srcY2, srcU, srcV, width); \
\
dest1 += dest_stride; \
dest2 += dest_stride; \
srcY1 += src_y_stride; \
srcY2 += src_y_stride; \
srcU += src_uv_stride; \
srcV += src_uv_stride; \
} \
}
CREATE_I420_ARGB_FUNCTIONS (argb, 0, 1, 2, 3);
CREATE_I420_ARGB_FUNCTIONS (abgr, 0, 3, 2, 1);
CREATE_I420_ARGB_FUNCTIONS (rgba, 3, 0, 1, 2);
CREATE_I420_ARGB_FUNCTIONS (bgra, 3, 2, 1, 0);
#define CREATE_RGB_AYUV_FUNCTIONS(name, R, G, B, bpp) \
static void \
gst_alpha_set_##name##_ayuv (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint s_alpha = CLAMP ((gint) (alpha->alpha * 255), 0, 255); \
gint i, j; \
gint matrix[12]; \
gint y, u, v; \
\
memcpy (matrix, \
alpha->out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv : \
cog_rgb_to_ycbcr_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
dest[0] = s_alpha; \
\
y = APPLY_MATRIX (matrix, 0, src[R], src[G], src[B]); \
u = APPLY_MATRIX (matrix, 1, src[R], src[G], src[B]); \
v = APPLY_MATRIX (matrix, 2, src[R], src[G], src[B]); \
\
dest[1] = y; \
dest[2] = u; \
dest[3] = v; \
\
dest += 4; \
src += bpp; \
} \
} \
} \
\
static void \
gst_alpha_chroma_key_##name##_ayuv (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint i, j; \
gint a, y, u, v; \
gint r, g, b; \
gint smin, smax; \
gint pa = CLAMP ((gint) (alpha->alpha * 255), 0, 255); \
gint8 cb = alpha->cb, cr = alpha->cr; \
gint8 kg = alpha->kg; \
guint8 accept_angle_tg = alpha->accept_angle_tg; \
guint8 accept_angle_ctg = alpha->accept_angle_ctg; \
guint8 one_over_kc = alpha->one_over_kc; \
guint8 kfgy_scale = alpha->kfgy_scale; \
guint noise_level2 = alpha->noise_level2; \
gint matrix[12]; \
\
smin = 128 - alpha->black_sensitivity; \
smax = 128 + alpha->white_sensitivity; \
\
memcpy (matrix, \
alpha->out_sdtv ? cog_rgb_to_ycbcr_matrix_8bit_sdtv : \
cog_rgb_to_ycbcr_matrix_8bit_hdtv, 12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
a = pa; \
r = src[R]; \
g = src[G]; \
b = src[B]; \
\
y = APPLY_MATRIX (matrix, 0, r, g, b); \
u = APPLY_MATRIX (matrix, 1, r, g, b) - 128; \
v = APPLY_MATRIX (matrix, 2, r, g, b) - 128; \
\
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, \
smin, smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
dest[0] = a; \
dest[1] = y; \
dest[2] = u; \
dest[3] = v; \
\
src += bpp; \
dest += 4; \
} \
} \
}
CREATE_RGB_AYUV_FUNCTIONS (xrgb, 1, 2, 3, 4);
CREATE_RGB_AYUV_FUNCTIONS (xbgr, 3, 2, 1, 4);
CREATE_RGB_AYUV_FUNCTIONS (rgbx, 0, 1, 2, 4);
CREATE_RGB_AYUV_FUNCTIONS (bgrx, 2, 1, 0, 4);
CREATE_RGB_AYUV_FUNCTIONS (rgb, 0, 1, 2, 3);
CREATE_RGB_AYUV_FUNCTIONS (bgr, 2, 1, 0, 3);
#define CREATE_RGB_ARGB_FUNCTIONS(name, name2, R, G, B, A2, R2, G2, B2, bpp) \
static void \
gst_alpha_set_##name##_##name2 (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint s_alpha = CLAMP ((gint) (alpha->alpha * 255), 0, 255); \
gint i, j; \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
dest[A2] = s_alpha; \
\
dest[R2] = src[R]; \
dest[G2] = src[G]; \
dest[B2] = src[B]; \
\
dest += 4; \
src += bpp; \
} \
} \
} \
\
static void \
gst_alpha_chroma_key_##name##_##name2 (const guint8 * src, guint8 * dest, gint width, \
gint height, GstAlpha * alpha) \
{ \
gint i, j; \
gint a, y, u, v; \
gint r, g, b; \
gint smin, smax; \
gint pa = CLAMP ((gint) (alpha->alpha * 255), 0, 255); \
gint8 cb = alpha->cb, cr = alpha->cr; \
gint8 kg = alpha->kg; \
guint8 accept_angle_tg = alpha->accept_angle_tg; \
guint8 accept_angle_ctg = alpha->accept_angle_ctg; \
guint8 one_over_kc = alpha->one_over_kc; \
guint8 kfgy_scale = alpha->kfgy_scale; \
guint noise_level2 = alpha->noise_level2; \
gint matrix[12], matrix2[12]; \
\
smin = 128 - alpha->black_sensitivity; \
smax = 128 + alpha->white_sensitivity; \
\
memcpy (matrix, \
cog_rgb_to_ycbcr_matrix_8bit_sdtv, \
12 * sizeof (gint)); \
memcpy (matrix2, \
cog_ycbcr_to_rgb_matrix_8bit_sdtv, \
12 * sizeof (gint)); \
\
for (i = 0; i < height; i++) { \
for (j = 0; j < width; j++) { \
a = pa; \
r = src[R]; \
g = src[G]; \
b = src[B]; \
\
y = APPLY_MATRIX (matrix, 0, r, g, b); \
u = APPLY_MATRIX (matrix, 1, r, g, b) - 128; \
v = APPLY_MATRIX (matrix, 2, r, g, b) - 128; \
\
a = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, \
smin, smax, accept_angle_tg, accept_angle_ctg, \
one_over_kc, kfgy_scale, kg, noise_level2); \
\
u += 128; \
v += 128; \
\
r = APPLY_MATRIX (matrix2, 0, y, u, v); \
g = APPLY_MATRIX (matrix2, 1, y, u, v); \
b = APPLY_MATRIX (matrix2, 2, y, u, v); \
\
dest[A2] = a; \
dest[R2] = CLAMP (r, 0, 255); \
dest[G2] = CLAMP (g, 0, 255); \
dest[B2] = CLAMP (b, 0, 255); \
\
src += bpp; \
dest += 4; \
} \
} \
}
CREATE_RGB_ARGB_FUNCTIONS (xrgb, argb, 1, 2, 3, 0, 1, 2, 3, 4);
CREATE_RGB_ARGB_FUNCTIONS (xrgb, abgr, 1, 2, 3, 0, 3, 2, 1, 4);
CREATE_RGB_ARGB_FUNCTIONS (xrgb, rgba, 1, 2, 3, 3, 0, 1, 2, 4);
CREATE_RGB_ARGB_FUNCTIONS (xrgb, bgra, 1, 2, 3, 3, 2, 1, 0, 4);
CREATE_RGB_ARGB_FUNCTIONS (xbgr, argb, 3, 2, 1, 0, 1, 2, 3, 4);
CREATE_RGB_ARGB_FUNCTIONS (xbgr, abgr, 3, 2, 1, 0, 3, 2, 1, 4);
CREATE_RGB_ARGB_FUNCTIONS (xbgr, rgba, 3, 2, 1, 3, 0, 1, 2, 4);
CREATE_RGB_ARGB_FUNCTIONS (xbgr, bgra, 3, 2, 1, 3, 2, 1, 0, 4);
CREATE_RGB_ARGB_FUNCTIONS (rgbx, argb, 0, 1, 2, 0, 1, 2, 3, 4);
CREATE_RGB_ARGB_FUNCTIONS (rgbx, abgr, 0, 1, 2, 0, 3, 2, 1, 4);
CREATE_RGB_ARGB_FUNCTIONS (rgbx, rgba, 0, 1, 2, 3, 0, 1, 2, 4);
CREATE_RGB_ARGB_FUNCTIONS (rgbx, bgra, 0, 1, 2, 3, 2, 1, 0, 4);
CREATE_RGB_ARGB_FUNCTIONS (bgrx, argb, 2, 1, 0, 0, 1, 2, 3, 4);
CREATE_RGB_ARGB_FUNCTIONS (bgrx, abgr, 2, 1, 0, 0, 3, 2, 1, 4);
CREATE_RGB_ARGB_FUNCTIONS (bgrx, rgba, 2, 1, 0, 3, 0, 1, 2, 4);
CREATE_RGB_ARGB_FUNCTIONS (bgrx, bgra, 2, 1, 0, 3, 2, 1, 0, 4);
CREATE_RGB_ARGB_FUNCTIONS (rgb, argb, 0, 1, 2, 0, 1, 2, 3, 3);
CREATE_RGB_ARGB_FUNCTIONS (rgb, abgr, 0, 1, 2, 0, 3, 2, 1, 3);
CREATE_RGB_ARGB_FUNCTIONS (rgb, rgba, 0, 1, 2, 3, 0, 1, 2, 3);
CREATE_RGB_ARGB_FUNCTIONS (rgb, bgra, 0, 1, 2, 3, 2, 1, 0, 3);
CREATE_RGB_ARGB_FUNCTIONS (bgr, argb, 2, 1, 0, 0, 1, 2, 3, 3);
CREATE_RGB_ARGB_FUNCTIONS (bgr, abgr, 2, 1, 0, 0, 3, 2, 1, 3);
CREATE_RGB_ARGB_FUNCTIONS (bgr, rgba, 2, 1, 0, 3, 0, 1, 2, 3);
CREATE_RGB_ARGB_FUNCTIONS (bgr, bgra, 2, 1, 0, 3, 2, 1, 0, 3);
static void
gst_alpha_set_i420_ayuv (const guint8 * src, guint8 * dest, gint width,
gint height, GstAlpha * alpha)
{
gint b_alpha = CLAMP ((gint) (alpha->alpha * 255), 0, 255);
const guint8 *srcY;
const guint8 *srcU;
const guint8 *srcV;
gint i, j;
gint src_wrap, src_uv_wrap;
gint y_stride, uv_stride;
gboolean odd_width;
y_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 0, width);
uv_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 1, width);
src_wrap = y_stride - width;
src_uv_wrap = uv_stride - (width / 2);
srcY = src;
srcU = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
1, width, height);
srcV = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
2, width, height);
odd_width = (width % 2 != 0);
if (alpha->in_sdtv == alpha->out_sdtv) {
for (i = 0; i < height; i++) {
for (j = 0; j < width / 2; j++) {
dest[0] = b_alpha;
dest[1] = srcY[0];
dest[2] = srcU[0];
dest[3] = srcV[0];
dest[4] = b_alpha;
dest[5] = srcY[1];
dest[6] = srcU[0];
dest[7] = srcV[0];
dest += 8;
srcY += 2;
srcU++;
srcV++;
}
/* Might have one odd column left to do */
if (odd_width) {
dest[0] = b_alpha;
dest[1] = srcY[0];
dest[2] = srcU[0];
dest[3] = srcV[0];
dest += 4;
srcY++;
}
if (i % 2 == 0) {
srcU -= width / 2;
srcV -= width / 2;
} else {
srcU += src_uv_wrap;
srcV += src_uv_wrap;
}
srcY += src_wrap;
}
} else {
gint matrix[12];
memcpy (matrix,
alpha->out_sdtv ? cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit :
cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit, 12 * sizeof (gint));
for (i = 0; i < height; i++) {
for (j = 0; j < width / 2; j++) {
dest[0] = b_alpha;
dest[1] = APPLY_MATRIX (matrix, 0, srcY[0], srcU[0], srcV[0]);
dest[2] = APPLY_MATRIX (matrix, 1, srcY[0], srcU[0], srcV[0]);
dest[3] = APPLY_MATRIX (matrix, 2, srcY[0], srcU[0], srcV[0]);
dest[4] = b_alpha;
dest[5] = APPLY_MATRIX (matrix, 0, srcY[1], srcU[0], srcV[0]);
dest[6] = APPLY_MATRIX (matrix, 1, srcY[1], srcU[0], srcV[0]);
dest[7] = APPLY_MATRIX (matrix, 2, srcY[1], srcU[0], srcV[0]);
dest += 8;
srcY += 2;
srcU++;
srcV++;
}
/* Might have one odd column left to do */
if (odd_width) {
dest[0] = b_alpha;
dest[1] = APPLY_MATRIX (matrix, 0, srcY[0], srcU[0], srcV[0]);
dest[2] = APPLY_MATRIX (matrix, 1, srcY[0], srcU[0], srcV[0]);
dest[3] = APPLY_MATRIX (matrix, 2, srcY[0], srcU[0], srcV[0]);
dest += 4;
srcY++;
}
if (i % 2 == 0) {
srcU -= width / 2;
srcV -= width / 2;
} else {
srcU += src_uv_wrap;
srcV += src_uv_wrap;
}
srcY += src_wrap;
}
}
}
static inline void
gst_alpha_chromakey_row_i420_ayuv (GstAlpha * alpha, guint8 * dest1,
guint8 * dest2, const guint8 * srcY1, const guint8 * srcY2,
const guint8 * srcU, const guint8 * srcV, gint width)
{
gint xpos;
gint a, a2, u, v;
gint smin, smax;
gint8 cb = alpha->cb, cr = alpha->cr;
gint8 kg = alpha->kg;
guint8 accept_angle_tg = alpha->accept_angle_tg;
guint8 accept_angle_ctg = alpha->accept_angle_ctg;
guint8 one_over_kc = alpha->one_over_kc;
guint8 kfgy_scale = alpha->kfgy_scale;
guint noise_level2 = alpha->noise_level2;
a = CLAMP ((gint) (alpha->alpha * 255), 0, 255);
smin = 128 - alpha->black_sensitivity;
smax = 128 + alpha->white_sensitivity;
if (alpha->in_sdtv == alpha->out_sdtv) {
gint y[4];
for (xpos = 0; xpos < width / 2; xpos++) {
y[0] = srcY1[0];
y[1] = srcY1[1];
y[2] = srcY2[0];
y[3] = srcY2[1];
u = srcU[0] - 128;
v = srcV[0] - 128;
a2 = chroma_keying_yuv (a, y, 4, &u, &v, cr, cb, smin,
smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest1[0] = a2;
dest1[1] = y[0];
dest1[2] = u;
dest1[3] = v;
dest1[4] = a2;
dest1[5] = y[1];
dest1[6] = u;
dest1[7] = v;
dest2[0] = a2;
dest2[1] = y[2];
dest2[2] = u;
dest2[3] = v;
dest2[4] = a2;
dest2[5] = y[3];
dest2[6] = u;
dest2[7] = v;
srcY1 += 2;
srcY2 += 2;
srcU++;
srcV++;
dest1 += 8;
dest2 += 8;
}
} else {
gint matrix[12], y;
memcpy (matrix,
alpha->out_sdtv ? cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit :
cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit, 12 * sizeof (gint));
for (xpos = 0; xpos < width / 2; xpos++) {
y = APPLY_MATRIX (matrix, 0, srcY1[0], srcU[0], srcV[0]);
u = APPLY_MATRIX (matrix, 1, srcY1[0], srcU[0], srcV[0]) - 128;
v = APPLY_MATRIX (matrix, 2, srcY1[0], srcU[0], srcV[0]) - 128;
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin,
smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest1[0] = a2;
dest1[1] = y;
dest1[2] = u;
dest1[3] = v;
y = APPLY_MATRIX (matrix, 0, srcY1[1], srcU[0], srcV[0]);
u = APPLY_MATRIX (matrix, 1, srcY1[1], srcU[0], srcV[0]) - 128;
v = APPLY_MATRIX (matrix, 2, srcY1[1], srcU[0], srcV[0]) - 128;
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin,
smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest1[4] = a2;
dest1[5] = y;
dest1[6] = u;
dest1[7] = v;
y = APPLY_MATRIX (matrix, 0, srcY2[0], srcU[0], srcV[0]);
u = APPLY_MATRIX (matrix, 1, srcY2[0], srcU[0], srcV[0]) - 128;
v = APPLY_MATRIX (matrix, 2, srcY2[0], srcU[0], srcV[0]) - 128;
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin,
smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest2[0] = a2;
dest2[1] = y;
dest2[2] = u;
dest2[3] = v;
y = APPLY_MATRIX (matrix, 0, srcY2[1], srcU[0], srcV[0]);
u = APPLY_MATRIX (matrix, 1, srcY2[1], srcU[0], srcV[0]) - 128;
v = APPLY_MATRIX (matrix, 2, srcY2[1], srcU[0], srcV[0]) - 128;
a2 = chroma_keying_yuv (a, &y, 1, &u, &v, cr, cb, smin,
smax, accept_angle_tg, accept_angle_ctg,
one_over_kc, kfgy_scale, kg, noise_level2);
u += 128;
v += 128;
dest2[4] = a2;
dest2[5] = y;
dest2[6] = u;
dest2[7] = v;
srcY1 += 2;
srcY2 += 2;
srcU++;
srcV++;
dest1 += 8;
dest2 += 8;
}
}
}
static void
gst_alpha_chroma_key_i420_ayuv (const guint8 * src, guint8 * dest,
gint width, gint height, GstAlpha * alpha)
{
const guint8 *srcY1, *srcY2, *srcU, *srcV;
guint8 *dest1, *dest2;
gint ypos;
gint dest_stride, src_y_stride, src_uv_stride;
dest_stride =
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_AYUV, 0, width);
src_y_stride =
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 0, width);
src_uv_stride =
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 1, width);
srcY1 = src;
srcY2 = src + src_y_stride;
srcU = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
1, width, height);
srcV = src + gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
2, width, height);
dest1 = dest;
dest2 = dest + dest_stride;
/* Redefine Y strides to skip 2 lines at a time ... */
dest_stride *= 2;
src_y_stride *= 2;
for (ypos = 0; ypos < height / 2; ypos++) {
gst_alpha_chromakey_row_i420_ayuv (alpha, dest1, dest2,
srcY1, srcY2, srcU, srcV, width);
dest1 += dest_stride;
dest2 += dest_stride;
srcY1 += src_y_stride;
srcY2 += src_y_stride;
srcU += src_uv_stride;
srcV += src_uv_stride;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
2004-05-28 18:01:34 +00:00
}
}
static void
gst_alpha_init_params (GstAlpha * alpha)
{
gfloat kgl;
gfloat tmp;
gfloat tmp1, tmp2;
gfloat y;
const gint *matrix;
/* RGB->RGB: convert to SDTV YUV, chroma keying, convert back
* YUV->RGB: chroma keying, convert to RGB
* RGB->YUV: convert to YUV, chroma keying
* YUV->YUV: convert matrix, chroma keying
*/
if (gst_video_format_is_rgb (alpha->in_format)
&& gst_video_format_is_rgb (alpha->out_format))
matrix = cog_rgb_to_ycbcr_matrix_8bit_sdtv;
else if (gst_video_format_is_yuv (alpha->in_format)
&& gst_video_format_is_rgb (alpha->out_format))
matrix =
(alpha->in_sdtv) ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
cog_rgb_to_ycbcr_matrix_8bit_hdtv;
else if (gst_video_format_is_rgb (alpha->in_format)
&& gst_video_format_is_yuv (alpha->out_format))
matrix =
(alpha->out_sdtv) ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
cog_rgb_to_ycbcr_matrix_8bit_hdtv;
else /* yuv -> yuv */
matrix =
(alpha->out_sdtv) ? cog_rgb_to_ycbcr_matrix_8bit_sdtv :
cog_rgb_to_ycbcr_matrix_8bit_hdtv;
y = (matrix[0] * ((gint) alpha->target_r) +
matrix[1] * ((gint) alpha->target_g) +
matrix[2] * ((gint) alpha->target_b) + matrix[3]) >> 8;
/* Cb,Cr without offset here because the chroma keying
* works with them being in range [-128,127]
*/
tmp1 =
(matrix[4] * ((gint) alpha->target_r) +
matrix[5] * ((gint) alpha->target_g) +
matrix[6] * ((gint) alpha->target_b)) >> 8;
tmp2 =
(matrix[8] * ((gint) alpha->target_r) +
matrix[9] * ((gint) alpha->target_g) +
matrix[10] * ((gint) alpha->target_b)) >> 8;
kgl = sqrt (tmp1 * tmp1 + tmp2 * tmp2);
alpha->cb = 127 * (tmp1 / kgl);
alpha->cr = 127 * (tmp2 / kgl);
tmp = 15 * tan (M_PI * alpha->angle / 180);
tmp = MIN (tmp, 255);
alpha->accept_angle_tg = tmp;
tmp = 15 / tan (M_PI * alpha->angle / 180);
tmp = MIN (tmp, 255);
alpha->accept_angle_ctg = tmp;
tmp = 1 / (kgl);
alpha->one_over_kc = 255 * 2 * tmp - 255;
tmp = 15 * y / kgl;
tmp = MIN (tmp, 255);
alpha->kfgy_scale = tmp;
alpha->kg = MIN (kgl, 127);
alpha->noise_level2 = alpha->noise_level * alpha->noise_level;
}
static gboolean
gst_alpha_set_process_function (GstAlpha * alpha)
{
alpha->process = NULL;
switch (alpha->method) {
case ALPHA_METHOD_SET:
switch (alpha->out_format) {
case GST_VIDEO_FORMAT_AYUV:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_set_ayuv_ayuv;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_set_i420_ayuv;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_set_argb_ayuv;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_set_abgr_ayuv;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_set_rgba_ayuv;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_set_bgra_ayuv;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_set_xrgb_ayuv;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_set_xbgr_ayuv;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_set_rgbx_ayuv;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_set_bgrx_ayuv;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_set_rgb_ayuv;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_set_bgr_ayuv;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_ARGB:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_set_ayuv_argb;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_set_i420_argb;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_set_argb_argb;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_set_abgr_argb;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_set_rgba_argb;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_set_bgra_argb;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_set_xrgb_argb;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_set_xbgr_argb;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_set_rgbx_argb;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_set_bgrx_argb;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_set_rgb_argb;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_set_bgr_argb;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_ABGR:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_set_ayuv_abgr;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_set_i420_abgr;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_set_argb_abgr;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_set_abgr_abgr;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_set_rgba_abgr;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_set_bgra_abgr;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_set_xrgb_abgr;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_set_xbgr_abgr;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_set_rgbx_abgr;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_set_bgrx_abgr;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_set_rgb_abgr;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_set_bgr_abgr;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_RGBA:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_set_ayuv_rgba;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_set_i420_rgba;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_set_argb_rgba;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_set_abgr_rgba;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_set_rgba_rgba;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_set_bgra_rgba;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_set_xrgb_rgba;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_set_xbgr_rgba;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_set_rgbx_rgba;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_set_bgrx_rgba;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_set_rgb_rgba;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_set_bgr_rgba;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_BGRA:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_set_ayuv_bgra;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_set_i420_bgra;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_set_argb_bgra;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_set_abgr_bgra;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_set_rgba_bgra;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_set_bgra_bgra;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_set_xrgb_bgra;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_set_xbgr_bgra;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_set_rgbx_bgra;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_set_bgrx_bgra;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_set_rgb_bgra;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_set_bgr_bgra;
break;
default:
break;
}
break;
default:
break;
}
break;
case ALPHA_METHOD_GREEN:
case ALPHA_METHOD_BLUE:
case ALPHA_METHOD_CUSTOM:
switch (alpha->out_format) {
case GST_VIDEO_FORMAT_AYUV:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_chroma_key_ayuv_ayuv;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_chroma_key_i420_ayuv;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_chroma_key_argb_ayuv;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_chroma_key_abgr_ayuv;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_chroma_key_rgba_ayuv;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_chroma_key_bgra_ayuv;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_chroma_key_xrgb_ayuv;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_chroma_key_xbgr_ayuv;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_chroma_key_rgbx_ayuv;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_chroma_key_bgrx_ayuv;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_chroma_key_rgb_ayuv;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_chroma_key_bgr_ayuv;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_ARGB:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_chroma_key_ayuv_argb;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_chroma_key_i420_argb;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_chroma_key_argb_argb;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_chroma_key_abgr_argb;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_chroma_key_rgba_argb;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_chroma_key_bgra_argb;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_chroma_key_xrgb_argb;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_chroma_key_xbgr_argb;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_chroma_key_rgbx_argb;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_chroma_key_bgrx_argb;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_chroma_key_rgb_argb;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_chroma_key_bgr_argb;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_ABGR:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_chroma_key_ayuv_abgr;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_chroma_key_i420_abgr;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_chroma_key_argb_abgr;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_chroma_key_abgr_abgr;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_chroma_key_rgba_abgr;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_chroma_key_bgra_abgr;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_chroma_key_xrgb_abgr;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_chroma_key_xbgr_abgr;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_chroma_key_rgbx_abgr;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_chroma_key_bgrx_abgr;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_chroma_key_rgb_abgr;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_chroma_key_bgr_abgr;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_RGBA:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_chroma_key_ayuv_rgba;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_chroma_key_i420_rgba;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_chroma_key_argb_rgba;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_chroma_key_abgr_rgba;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_chroma_key_rgba_rgba;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_chroma_key_bgra_rgba;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_chroma_key_xrgb_rgba;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_chroma_key_xbgr_rgba;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_chroma_key_rgbx_rgba;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_chroma_key_bgrx_rgba;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_chroma_key_rgb_rgba;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_chroma_key_bgr_rgba;
break;
default:
break;
}
break;
case GST_VIDEO_FORMAT_BGRA:
switch (alpha->in_format) {
case GST_VIDEO_FORMAT_AYUV:
alpha->process = gst_alpha_chroma_key_ayuv_bgra;
break;
case GST_VIDEO_FORMAT_I420:
alpha->process = gst_alpha_chroma_key_i420_bgra;
break;
2010-03-20 20:13:23 +00:00
case GST_VIDEO_FORMAT_ARGB:
alpha->process = gst_alpha_chroma_key_argb_bgra;
break;
case GST_VIDEO_FORMAT_ABGR:
alpha->process = gst_alpha_chroma_key_abgr_bgra;
break;
case GST_VIDEO_FORMAT_RGBA:
alpha->process = gst_alpha_chroma_key_rgba_bgra;
break;
case GST_VIDEO_FORMAT_BGRA:
alpha->process = gst_alpha_chroma_key_bgra_bgra;
break;
case GST_VIDEO_FORMAT_xRGB:
alpha->process = gst_alpha_chroma_key_xrgb_bgra;
break;
case GST_VIDEO_FORMAT_xBGR:
alpha->process = gst_alpha_chroma_key_xbgr_bgra;
break;
case GST_VIDEO_FORMAT_RGBx:
alpha->process = gst_alpha_chroma_key_rgbx_bgra;
break;
case GST_VIDEO_FORMAT_BGRx:
alpha->process = gst_alpha_chroma_key_bgrx_bgra;
break;
case GST_VIDEO_FORMAT_RGB:
alpha->process = gst_alpha_chroma_key_rgb_bgra;
break;
case GST_VIDEO_FORMAT_BGR:
alpha->process = gst_alpha_chroma_key_bgr_bgra;
break;
default:
break;
}
break;
default:
break;
}
break;
default:
break;
}
return alpha->process != NULL;
}
static gboolean
gst_alpha_start (GstBaseTransform * btrans)
{
GstAlpha *alpha = GST_ALPHA (btrans);
gst_alpha_init_params (alpha);
return TRUE;
}
static GstFlowReturn
gst_alpha_transform (GstBaseTransform * btrans, GstBuffer * in, GstBuffer * out)
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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{
GstAlpha *alpha = GST_ALPHA (btrans);
gint width, height;
GstClockTime timestamp;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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width = alpha->width;
height = alpha->height;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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GST_BUFFER_TIMESTAMP (out) = GST_BUFFER_TIMESTAMP (in);
GST_BUFFER_DURATION (out) = GST_BUFFER_DURATION (in);
timestamp = gst_segment_to_stream_time (&btrans->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (in));
GST_LOG ("Got stream time of %" GST_TIME_FORMAT, GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (timestamp))
gst_object_sync_values (G_OBJECT (alpha), timestamp);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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GST_OBJECT_LOCK (alpha);
if (G_UNLIKELY (!alpha->process)) {
GST_ERROR_OBJECT (alpha, "Not negotiated yet");
GST_OBJECT_UNLOCK (alpha);
return GST_FLOW_NOT_NEGOTIATED;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
alpha->process (GST_BUFFER_DATA (in),
GST_BUFFER_DATA (out), width, height, alpha);
GST_OBJECT_UNLOCK (alpha);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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return GST_FLOW_OK;
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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}
static gboolean
plugin_init (GstPlugin * plugin)
{
gst_controller_init (NULL, NULL);
A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. Original commit message from CVS: * configure.ac: * gst/alpha/Makefile.am: * gst/alpha/gstalpha.c: (gst_alpha_method_get_type), (gst_alpha_get_type), (gst_alpha_base_init), (gst_alpha_class_init), (gst_alpha_init), (gst_alpha_set_property), (gst_alpha_get_property), (gst_alpha_sink_link), (gst_alpha_add), (gst_alpha_chroma_key), (gst_alpha_chain), (gst_alpha_change_state), (plugin_init): A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. * gst/multipart/Makefile.am: * gst/multipart/multipart.c: (plugin_init): * gst/multipart/multipartdemux.c: (gst_multipart_demux_base_init), (gst_multipart_demux_class_init), (gst_multipart_demux_init), (gst_multipart_demux_finalize), (gst_multipart_demux_handle_event), (gst_multipart_find_pad_by_mime), (gst_multipart_demux_chain), (gst_multipart_demux_change_state), (gst_multipart_demux_plugin_init): * gst/multipart/multipartmux.c: (gst_multipart_mux_get_type), (gst_multipart_mux_base_init), (gst_multipart_mux_class_init), (gst_multipart_mux_get_sink_event_masks), (gst_multipart_mux_init), (gst_multipart_mux_sinkconnect), (gst_multipart_mux_pad_link), (gst_multipart_mux_pad_unlink), (gst_multipart_mux_request_new_pad), (gst_multipart_mux_handle_src_event), (gst_multipart_mux_next_buffer), (gst_multipart_mux_compare_pads), (gst_multipart_mux_queue_pads), (gst_multipart_mux_loop), (gst_multipart_mux_get_property), (gst_multipart_mux_set_property), (gst_multipart_mux_change_state), (gst_multipart_mux_plugin_init): A Multipart demuxer/muxer. Not sure if it violates specs. Used to send multipart jpeg images to a browser. * gst/videobox/Makefile.am: * gst/videobox/README: * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type), (gst_video_box_get_type), (gst_video_box_base_init), (gst_video_box_class_init), (gst_video_box_init), (gst_video_box_set_property), (gst_video_box_get_property), (gst_video_box_sink_link), (gst_video_box_i420), (gst_video_box_ayuv), (gst_video_box_chain), (gst_video_box_change_state), (plugin_init): Crops or adds borders around an image. can do alpha channel borders as well. * gst/videomixer/Makefile.am: * gst/videomixer/README: * gst/videomixer/videomixer.c: (gst_videomixer_pad_get_type), (gst_videomixer_pad_base_init), (gst_videomixer_pad_class_init), (gst_videomixer_pad_get_sink_event_masks), (gst_videomixer_pad_get_property), (gst_videomixer_pad_set_property), (gst_videomixer_pad_sinkconnect), (gst_videomixer_pad_link), (gst_videomixer_pad_unlink), (gst_videomixer_pad_init), (gst_video_mixer_background_get_type), (gst_videomixer_get_type), (gst_videomixer_base_init), (gst_videomixer_class_init), (gst_videomixer_init), (gst_videomixer_request_new_pad), (gst_videomixer_handle_src_event), (gst_videomixer_blend_ayuv_i420), (gst_videomixer_fill_checker), (gst_videomixer_fill_color), (gst_videomixer_fill_queues), (gst_videomixer_blend_buffers), (gst_videomixer_update_queues), (gst_videomixer_loop), (gst_videomixer_get_property), (gst_videomixer_set_property), (gst_videomixer_change_state), (plugin_init): Generic video mixer plugin, can handle multiple inputs all with different framerates and video sizes. Is fully alpha channel aware.
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return gst_element_register (plugin, "alpha", GST_RANK_NONE, GST_TYPE_ALPHA);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"alpha",
"adds an alpha channel to video - constant or via chroma-keying",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)