gstreamer/gst-libs/gst/video/video.c

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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 "video.h"
/* This is simply a convenience function, nothing more or less */
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
const GValue *
gst_video_frame_rate (GstPad * pad)
{
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
const GValue *fps;
gchar *fps_string;
const GstCaps *caps = NULL;
GstStructure *structure;
/* get pad caps */
caps = GST_PAD_CAPS (pad);
if (caps == NULL) {
g_warning ("gstvideo: failed to get caps of pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
return NULL;
}
structure = gst_caps_get_structure (caps, 0);
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
if ((fps = gst_structure_get_value (structure, "framerate")) == NULL) {
g_warning ("gstvideo: failed to get framerate property of pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
return NULL;
}
if (!GST_VALUE_HOLDS_FRACTION (fps)) {
g_warning
("gstvideo: framerate property of pad %s:%s is not of type Fraction",
GST_DEBUG_PAD_NAME (pad));
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
return NULL;
}
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
fps_string = gst_value_serialize (fps);
GST_DEBUG ("Framerate request on pad %s:%s: %s",
GST_DEBUG_PAD_NAME (pad), fps_string);
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
2005-11-22 16:08:37 +00:00
g_free (fps_string);
return fps;
}
gboolean
gst_video_get_size (GstPad * pad, gint * width, gint * height)
{
const GstCaps *caps = NULL;
GstStructure *structure;
gboolean ret;
g_return_val_if_fail (pad != NULL, FALSE);
g_return_val_if_fail (width != NULL, FALSE);
g_return_val_if_fail (height != NULL, FALSE);
caps = GST_PAD_CAPS (pad);
if (caps == NULL) {
g_warning ("gstvideo: failed to get caps of pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
return FALSE;
}
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", width);
ret &= gst_structure_get_int (structure, "height", height);
if (!ret) {
g_warning ("gstvideo: failed to get size properties on pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
return FALSE;
}
GST_DEBUG ("size request on pad %s:%s: %dx%d",
GST_DEBUG_PAD_NAME (pad), width ? *width : -1, height ? *height : -1);
return TRUE;
}