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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1162 lines
34 KiB
C
1162 lines
34 KiB
C
/* GStreamer
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* Copyright (C) 2009,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-shapewipe
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*
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* The shapewipe element provides custom transitions on video streams
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* based on a grayscale bitmap. The state of the transition can be
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* controlled by the position property and an optional blended border
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* can be added by the border property.
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*
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* Transition bitmaps can be downloaded from the
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* <ulink url="http://cinelerra.org/transitions.php">Cinelerra transition</ulink>
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* page.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch -v videotestsrc ! video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480 ! shapewipe position=0.5 name=shape ! videomixer name=mixer ! ffmpegcolorspace ! autovideosink filesrc location=mask.png ! typefind ! decodebin2 ! ffmpegcolorspace ! videoscale ! queue ! shape.mask_sink videotestsrc pattern=snow ! video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480 ! queue ! mixer.
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* ]| This pipeline adds the transition from mask.png with position 0.5 to an SMPTE test screen and snow.
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/controller/gstcontroller.h>
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#include "gstshapewipe.h"
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static void gst_shape_wipe_finalize (GObject * object);
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static void gst_shape_wipe_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_shape_wipe_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_shape_wipe_reset (GstShapeWipe * self);
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static void gst_shape_wipe_update_qos (GstShapeWipe * self, gdouble proportion,
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GstClockTimeDiff diff, GstClockTime time);
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static void gst_shape_wipe_reset_qos (GstShapeWipe * self);
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static void gst_shape_wipe_read_qos (GstShapeWipe * self, gdouble * proportion,
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GstClockTime * time);
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static GstStateChangeReturn gst_shape_wipe_change_state (GstElement * element,
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GstStateChange transition);
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static GstFlowReturn gst_shape_wipe_video_sink_chain (GstPad * pad,
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GstBuffer * buffer);
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static gboolean gst_shape_wipe_video_sink_event (GstPad * pad,
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GstEvent * event);
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static gboolean gst_shape_wipe_video_sink_setcaps (GstPad * pad,
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GstCaps * caps);
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static GstCaps *gst_shape_wipe_video_sink_getcaps (GstPad * pad);
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static GstFlowReturn gst_shape_wipe_video_sink_bufferalloc (GstPad * pad,
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guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
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static gboolean gst_shape_wipe_video_sink_query (GstPad * pad,
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GstQuery * query);
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static GstFlowReturn gst_shape_wipe_mask_sink_chain (GstPad * pad,
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GstBuffer * buffer);
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static gboolean gst_shape_wipe_mask_sink_event (GstPad * pad, GstEvent * event);
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static gboolean gst_shape_wipe_mask_sink_setcaps (GstPad * pad, GstCaps * caps);
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static GstCaps *gst_shape_wipe_mask_sink_getcaps (GstPad * pad);
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static gboolean gst_shape_wipe_src_event (GstPad * pad, GstEvent * event);
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static GstCaps *gst_shape_wipe_src_getcaps (GstPad * pad);
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static gboolean gst_shape_wipe_src_query (GstPad * pad, GstQuery * query);
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enum
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{
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PROP_0,
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PROP_POSITION,
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PROP_BORDER
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};
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#define DEFAULT_POSITION 0.0
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#define DEFAULT_BORDER 0.0
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static GstStaticPadTemplate video_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("video_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB " ; "
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GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA));
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static GstStaticPadTemplate mask_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("mask_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-gray, "
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"bpp = 8, "
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"depth = 8, "
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"width = " GST_VIDEO_SIZE_RANGE ", "
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"height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1 ; "
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"video/x-raw-gray, " "bpp = 16, " "depth = 16, "
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"endianness = BYTE_ORDER, " "width = " GST_VIDEO_SIZE_RANGE ", "
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"height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1"));
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static GstStaticPadTemplate src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB " ; "
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GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA));
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GST_DEBUG_CATEGORY_STATIC (gst_shape_wipe_debug);
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#define GST_CAT_DEFAULT gst_shape_wipe_debug
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GST_BOILERPLATE (GstShapeWipe, gst_shape_wipe, GstElement, GST_TYPE_ELEMENT);
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static void
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gst_shape_wipe_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details_simple (gstelement_class,
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"Shape Wipe transition filter",
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"Filter/Editor/Video",
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"Adds a shape wipe transition to a video stream",
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&video_sink_pad_template));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&mask_sink_pad_template));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&src_pad_template));
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}
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static void
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gst_shape_wipe_class_init (GstShapeWipeClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
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gobject_class->finalize = gst_shape_wipe_finalize;
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gobject_class->set_property = gst_shape_wipe_set_property;
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gobject_class->get_property = gst_shape_wipe_get_property;
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g_object_class_install_property (gobject_class, PROP_POSITION,
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g_param_spec_float ("position", "Position", "Position of the mask",
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0.0, 1.0, DEFAULT_POSITION,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BORDER,
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g_param_spec_float ("border", "Border", "Border of the mask",
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0.0, 1.0, DEFAULT_BORDER,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_shape_wipe_change_state);
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}
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static void
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gst_shape_wipe_init (GstShapeWipe * self, GstShapeWipeClass * g_class)
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{
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self->video_sinkpad =
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gst_pad_new_from_static_template (&video_sink_pad_template, "video_sink");
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gst_pad_set_chain_function (self->video_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_chain));
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gst_pad_set_event_function (self->video_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_event));
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gst_pad_set_setcaps_function (self->video_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_setcaps));
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gst_pad_set_getcaps_function (self->video_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_getcaps));
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gst_pad_set_bufferalloc_function (self->video_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_bufferalloc));
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gst_pad_set_query_function (self->video_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_query));
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gst_element_add_pad (GST_ELEMENT (self), self->video_sinkpad);
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self->mask_sinkpad =
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gst_pad_new_from_static_template (&mask_sink_pad_template, "mask_sink");
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gst_pad_set_chain_function (self->mask_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_chain));
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gst_pad_set_event_function (self->mask_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_event));
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gst_pad_set_setcaps_function (self->mask_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_setcaps));
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gst_pad_set_getcaps_function (self->mask_sinkpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_getcaps));
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gst_element_add_pad (GST_ELEMENT (self), self->mask_sinkpad);
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self->srcpad = gst_pad_new_from_static_template (&src_pad_template, "src");
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gst_pad_set_event_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_src_event));
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gst_pad_set_getcaps_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_src_getcaps));
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gst_pad_set_query_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_shape_wipe_src_query));
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gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
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self->mask_mutex = g_mutex_new ();
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self->mask_cond = g_cond_new ();
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gst_shape_wipe_reset (self);
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}
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static void
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gst_shape_wipe_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstShapeWipe *self = GST_SHAPE_WIPE (object);
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switch (prop_id) {
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case PROP_POSITION:
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g_value_set_float (value, self->mask_position);
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break;
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case PROP_BORDER:
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g_value_set_float (value, self->mask_border);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_shape_wipe_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstShapeWipe *self = GST_SHAPE_WIPE (object);
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switch (prop_id) {
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case PROP_POSITION:{
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gfloat f = g_value_get_float (value);
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GST_LOG_OBJECT (self, "Setting mask position: %f", f);
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self->mask_position = f;
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break;
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}
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case PROP_BORDER:{
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gfloat f = g_value_get_float (value);
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GST_LOG_OBJECT (self, "Setting mask border: %f", f);
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self->mask_border = f;
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_shape_wipe_finalize (GObject * object)
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{
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GstShapeWipe *self = GST_SHAPE_WIPE (object);
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gst_shape_wipe_reset (self);
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if (self->mask_cond)
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g_cond_free (self->mask_cond);
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self->mask_cond = NULL;
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if (self->mask_mutex)
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g_mutex_free (self->mask_mutex);
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self->mask_mutex = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_shape_wipe_reset (GstShapeWipe * self)
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{
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GST_DEBUG_OBJECT (self, "Resetting internal state");
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if (self->mask)
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gst_buffer_unref (self->mask);
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self->mask = NULL;
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g_mutex_lock (self->mask_mutex);
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g_cond_signal (self->mask_cond);
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g_mutex_unlock (self->mask_mutex);
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self->fmt = GST_VIDEO_FORMAT_UNKNOWN;
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self->width = self->height = 0;
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self->mask_bpp = 0;
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gst_segment_init (&self->segment, GST_FORMAT_TIME);
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gst_shape_wipe_reset_qos (self);
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self->frame_duration = 0;
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}
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static GstFlowReturn
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gst_shape_wipe_video_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
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GstCaps * caps, GstBuffer ** buf)
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{
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GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
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GstFlowReturn ret = GST_FLOW_OK;
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GST_LOG_OBJECT (pad, "Allocating buffer with offset 0x%" G_GINT64_MODIFIER
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"x and size %u with caps: %" GST_PTR_FORMAT, offset, size, caps);
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*buf = NULL;
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ret = gst_pad_alloc_buffer (self->srcpad, offset, size, caps, buf);
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if (G_UNLIKELY (ret != GST_FLOW_OK))
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GST_ERROR_OBJECT (pad, "Allocating buffer failed: %s",
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gst_flow_get_name (ret));
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gst_object_unref (self);
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return ret;
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}
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static gboolean
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gst_shape_wipe_video_sink_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
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gboolean ret = TRUE;
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GstStructure *s;
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GstVideoFormat fmt;
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gint width, height;
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gint fps_n, fps_d;
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GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps);
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s = gst_caps_get_structure (caps, 0);
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if (!gst_video_format_parse_caps (caps, &fmt, &width, &height) ||
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!gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d)) {
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GST_ERROR_OBJECT (pad, "Invalid caps");
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ret = FALSE;
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goto done;
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}
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self->fmt = fmt;
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if (self->width != width || self->height != height) {
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g_mutex_lock (self->mask_mutex);
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self->width = width;
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self->height = height;
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if (self->mask)
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gst_buffer_unref (self->mask);
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self->mask = NULL;
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g_mutex_unlock (self->mask_mutex);
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}
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if (fps_n != 0)
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self->frame_duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
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else
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self->frame_duration = 0;
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ret = gst_pad_set_caps (self->srcpad, caps);
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done:
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gst_object_unref (self);
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return ret;
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}
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static GstCaps *
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gst_shape_wipe_video_sink_getcaps (GstPad * pad)
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{
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GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
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GstCaps *ret, *tmp;
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if (GST_PAD_CAPS (pad))
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return gst_caps_copy (GST_PAD_CAPS (pad));
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tmp = gst_pad_peer_get_caps (self->srcpad);
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if (tmp) {
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ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad));
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gst_caps_unref (tmp);
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} else {
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ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
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}
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GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret);
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if (gst_caps_is_empty (ret))
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goto done;
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tmp = gst_pad_peer_get_caps (pad);
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GST_LOG_OBJECT (pad, "peerpad accepted caps: %" GST_PTR_FORMAT, tmp);
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if (tmp) {
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GstCaps *intersection;
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intersection = gst_caps_intersect (tmp, ret);
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gst_caps_unref (tmp);
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gst_caps_unref (ret);
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ret = intersection;
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}
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GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, tmp);
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if (gst_caps_is_empty (ret))
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goto done;
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if (self->height && self->width) {
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guint i, n;
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n = gst_caps_get_size (ret);
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for (i = 0; i < n; i++) {
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GstStructure *s = gst_caps_get_structure (ret, i);
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gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
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G_TYPE_INT, self->height, NULL);
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}
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}
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tmp = gst_pad_peer_get_caps (self->mask_sinkpad);
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GST_LOG_OBJECT (pad, "mask accepted caps: %" GST_PTR_FORMAT, tmp);
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if (tmp) {
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GstCaps *intersection, *tmp2;
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guint i, n;
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tmp = gst_caps_make_writable (tmp);
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|
|
tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
|
|
|
|
intersection = gst_caps_intersect (tmp, tmp2);
|
|
gst_caps_unref (tmp);
|
|
gst_caps_unref (tmp2);
|
|
tmp = intersection;
|
|
|
|
n = gst_caps_get_size (tmp);
|
|
|
|
tmp2 = gst_caps_new_empty ();
|
|
for (i = 0; i < n; i++) {
|
|
GstStructure *s = gst_caps_get_structure (tmp, i);
|
|
GstStructure *c;
|
|
|
|
gst_structure_remove_fields (s, "format", "bpp", "depth", "endianness",
|
|
"framerate", "red_mask", "green_mask", "blue_mask", "alpha_mask",
|
|
NULL);
|
|
gst_structure_set_name (s, "video/x-raw-yuv");
|
|
c = gst_structure_copy (s);
|
|
gst_structure_set_name (c, "video/x-raw-rgb");
|
|
gst_caps_append_structure (tmp2, c);
|
|
}
|
|
gst_caps_append (tmp, tmp2);
|
|
|
|
intersection = gst_caps_intersect (tmp, ret);
|
|
gst_caps_unref (tmp);
|
|
gst_caps_unref (ret);
|
|
ret = intersection;
|
|
}
|
|
done:
|
|
|
|
gst_object_unref (self);
|
|
|
|
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_shape_wipe_mask_sink_setcaps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
gboolean ret = TRUE;
|
|
GstStructure *s;
|
|
gint width, height, bpp;
|
|
|
|
GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps);
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
|
|
if (!gst_structure_get_int (s, "width", &width) ||
|
|
!gst_structure_get_int (s, "height", &height) ||
|
|
!gst_structure_get_int (s, "bpp", &bpp)) {
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
|
|
if ((self->width != width || self->height != height) &&
|
|
self->width > 0 && self->height > 0) {
|
|
GST_ERROR_OBJECT (pad, "Mask caps must have the same width/height "
|
|
"as the video caps");
|
|
ret = FALSE;
|
|
goto done;
|
|
} else {
|
|
self->width = width;
|
|
self->height = height;
|
|
}
|
|
|
|
self->mask_bpp = bpp;
|
|
|
|
done:
|
|
gst_object_unref (self);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_shape_wipe_mask_sink_getcaps (GstPad * pad)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
GstCaps *ret, *tmp;
|
|
guint i, n;
|
|
|
|
if (GST_PAD_CAPS (pad))
|
|
return gst_caps_copy (GST_PAD_CAPS (pad));
|
|
|
|
tmp = gst_pad_peer_get_caps (self->video_sinkpad);
|
|
if (tmp) {
|
|
ret =
|
|
gst_caps_intersect (tmp,
|
|
gst_pad_get_pad_template_caps (self->video_sinkpad));
|
|
gst_caps_unref (tmp);
|
|
} else {
|
|
ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
|
|
}
|
|
|
|
GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret);
|
|
|
|
if (gst_caps_is_empty (ret))
|
|
goto done;
|
|
|
|
tmp = gst_pad_peer_get_caps (self->srcpad);
|
|
GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret);
|
|
|
|
if (tmp) {
|
|
GstCaps *intersection;
|
|
|
|
intersection = gst_caps_intersect (ret, tmp);
|
|
gst_caps_unref (ret);
|
|
gst_caps_unref (tmp);
|
|
ret = intersection;
|
|
}
|
|
|
|
GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret);
|
|
|
|
if (gst_caps_is_empty (ret))
|
|
goto done;
|
|
|
|
n = gst_caps_get_size (ret);
|
|
tmp = gst_caps_new_empty ();
|
|
for (i = 0; i < n; i++) {
|
|
GstStructure *s = gst_caps_get_structure (ret, i);
|
|
GstStructure *t;
|
|
|
|
gst_structure_set_name (s, "video/x-raw-gray");
|
|
gst_structure_remove_fields (s, "format", "framerate", "bpp", "depth",
|
|
"endianness", "framerate", "red_mask", "green_mask", "blue_mask",
|
|
"alpha_mask", NULL);
|
|
|
|
if (self->width && self->height)
|
|
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
|
|
G_TYPE_INT, self->height, NULL);
|
|
|
|
gst_structure_set (s, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
|
|
|
|
t = gst_structure_copy (s);
|
|
|
|
gst_structure_set (s, "bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
|
|
"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
|
|
gst_structure_set (t, "bpp", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL);
|
|
|
|
gst_caps_append_structure (tmp, t);
|
|
}
|
|
gst_caps_append (ret, tmp);
|
|
|
|
tmp = gst_pad_peer_get_caps (pad);
|
|
GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, tmp);
|
|
|
|
if (tmp) {
|
|
GstCaps *intersection;
|
|
|
|
intersection = gst_caps_intersect (tmp, ret);
|
|
gst_caps_unref (tmp);
|
|
gst_caps_unref (ret);
|
|
ret = intersection;
|
|
}
|
|
|
|
done:
|
|
gst_object_unref (self);
|
|
|
|
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_shape_wipe_src_getcaps (GstPad * pad)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
GstCaps *ret, *tmp;
|
|
|
|
if (GST_PAD_CAPS (pad))
|
|
return gst_caps_copy (GST_PAD_CAPS (pad));
|
|
else if (GST_PAD_CAPS (self->video_sinkpad))
|
|
return gst_caps_copy (GST_PAD_CAPS (self->video_sinkpad));
|
|
|
|
tmp = gst_pad_peer_get_caps (self->video_sinkpad);
|
|
if (tmp) {
|
|
ret =
|
|
gst_caps_intersect (tmp,
|
|
gst_pad_get_pad_template_caps (self->video_sinkpad));
|
|
gst_caps_unref (tmp);
|
|
} else {
|
|
ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
|
|
}
|
|
|
|
GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret);
|
|
|
|
if (gst_caps_is_empty (ret))
|
|
goto done;
|
|
|
|
tmp = gst_pad_peer_get_caps (pad);
|
|
GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, ret);
|
|
if (tmp) {
|
|
GstCaps *intersection;
|
|
|
|
intersection = gst_caps_intersect (tmp, ret);
|
|
gst_caps_unref (tmp);
|
|
gst_caps_unref (ret);
|
|
ret = intersection;
|
|
}
|
|
|
|
GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret);
|
|
|
|
if (gst_caps_is_empty (ret))
|
|
goto done;
|
|
|
|
if (self->height && self->width) {
|
|
guint i, n;
|
|
|
|
n = gst_caps_get_size (ret);
|
|
for (i = 0; i < n; i++) {
|
|
GstStructure *s = gst_caps_get_structure (ret, i);
|
|
|
|
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
|
|
G_TYPE_INT, self->height, NULL);
|
|
}
|
|
}
|
|
|
|
tmp = gst_pad_peer_get_caps (self->mask_sinkpad);
|
|
GST_LOG_OBJECT (pad, "mask sink accepted caps: %" GST_PTR_FORMAT, ret);
|
|
if (tmp) {
|
|
GstCaps *intersection, *tmp2;
|
|
guint i, n;
|
|
|
|
tmp = gst_caps_make_writable (tmp);
|
|
tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
|
|
|
|
intersection = gst_caps_intersect (tmp, tmp2);
|
|
gst_caps_unref (tmp);
|
|
gst_caps_unref (tmp2);
|
|
|
|
tmp = intersection;
|
|
n = gst_caps_get_size (tmp);
|
|
|
|
tmp2 = gst_caps_new_empty ();
|
|
for (i = 0; i < n; i++) {
|
|
GstStructure *s = gst_caps_get_structure (tmp, i);
|
|
GstStructure *c;
|
|
|
|
gst_structure_remove_fields (s, "format", "bpp", "depth", "endianness",
|
|
"framerate", "red_mask", "green_mask", "blue_mask", "alpha_mask",
|
|
NULL);
|
|
gst_structure_set_name (s, "video/x-raw-yuv");
|
|
c = gst_structure_copy (s);
|
|
|
|
gst_caps_append_structure (tmp2, c);
|
|
}
|
|
gst_caps_append (tmp, tmp2);
|
|
|
|
intersection = gst_caps_intersect (tmp, ret);
|
|
gst_caps_unref (tmp);
|
|
gst_caps_unref (ret);
|
|
ret = intersection;
|
|
}
|
|
|
|
done:
|
|
|
|
gst_object_unref (self);
|
|
|
|
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_shape_wipe_video_sink_query (GstPad * pad, GstQuery * query)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
gboolean ret;
|
|
GstPad *peer = gst_pad_get_peer (self->srcpad);
|
|
|
|
GST_LOG_OBJECT (pad, "Handling query of type '%s'",
|
|
gst_query_type_get_name (GST_QUERY_TYPE (query)));
|
|
|
|
if (!peer) {
|
|
GST_INFO_OBJECT (pad, "No peer yet, dropping query");
|
|
ret = FALSE;
|
|
} else {
|
|
ret = gst_pad_query (peer, query);
|
|
gst_object_unref (peer);
|
|
}
|
|
|
|
gst_object_unref (self);
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_shape_wipe_src_query (GstPad * pad, GstQuery * query)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
gboolean ret;
|
|
GstPad *peer = gst_pad_get_peer (self->video_sinkpad);
|
|
|
|
GST_LOG_OBJECT (pad, "Handling query of type '%s'",
|
|
gst_query_type_get_name (GST_QUERY_TYPE (query)));
|
|
|
|
if (!peer) {
|
|
GST_INFO_OBJECT (pad, "No peer yet, dropping query");
|
|
ret = FALSE;
|
|
} else {
|
|
ret = gst_pad_query (peer, query);
|
|
gst_object_unref (peer);
|
|
}
|
|
|
|
gst_object_unref (self);
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_shape_wipe_update_qos (GstShapeWipe * self, gdouble proportion,
|
|
GstClockTimeDiff diff, GstClockTime timestamp)
|
|
{
|
|
GST_OBJECT_LOCK (self);
|
|
self->proportion = proportion;
|
|
if (G_LIKELY (timestamp != GST_CLOCK_TIME_NONE)) {
|
|
if (G_UNLIKELY (diff > 0))
|
|
self->earliest_time = timestamp + 2 * diff + self->frame_duration;
|
|
else
|
|
self->earliest_time = timestamp + diff;
|
|
} else {
|
|
self->earliest_time = GST_CLOCK_TIME_NONE;
|
|
}
|
|
GST_OBJECT_UNLOCK (self);
|
|
}
|
|
|
|
static void
|
|
gst_shape_wipe_reset_qos (GstShapeWipe * self)
|
|
{
|
|
gst_shape_wipe_update_qos (self, 0.5, 0, GST_CLOCK_TIME_NONE);
|
|
}
|
|
|
|
static void
|
|
gst_shape_wipe_read_qos (GstShapeWipe * self, gdouble * proportion,
|
|
GstClockTime * time)
|
|
{
|
|
GST_OBJECT_LOCK (self);
|
|
*proportion = self->proportion;
|
|
*time = self->earliest_time;
|
|
GST_OBJECT_UNLOCK (self);
|
|
}
|
|
|
|
/* Perform qos calculations before processing the next frame. Returns TRUE if
|
|
* the frame should be processed, FALSE if the frame can be dropped entirely */
|
|
static gboolean
|
|
gst_shape_wipe_do_qos (GstShapeWipe * self, GstClockTime timestamp)
|
|
{
|
|
GstClockTime qostime, earliest_time;
|
|
gdouble proportion;
|
|
|
|
/* no timestamp, can't do QoS => process frame */
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (timestamp))) {
|
|
GST_LOG_OBJECT (self, "invalid timestamp, can't do QoS, process frame");
|
|
return TRUE;
|
|
}
|
|
|
|
/* get latest QoS observation values */
|
|
gst_shape_wipe_read_qos (self, &proportion, &earliest_time);
|
|
|
|
/* skip qos if we have no observation (yet) => process frame */
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (earliest_time))) {
|
|
GST_LOG_OBJECT (self, "no observation yet, process frame");
|
|
return TRUE;
|
|
}
|
|
|
|
/* qos is done on running time */
|
|
qostime = gst_segment_to_running_time (&self->segment, GST_FORMAT_TIME,
|
|
timestamp);
|
|
|
|
/* see how our next timestamp relates to the latest qos timestamp */
|
|
GST_LOG_OBJECT (self, "qostime %" GST_TIME_FORMAT ", earliest %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (qostime), GST_TIME_ARGS (earliest_time));
|
|
|
|
if (qostime != GST_CLOCK_TIME_NONE && qostime <= earliest_time) {
|
|
GST_DEBUG_OBJECT (self, "we are late, drop frame");
|
|
return FALSE;
|
|
}
|
|
|
|
GST_LOG_OBJECT (self, "process frame");
|
|
return TRUE;
|
|
}
|
|
|
|
#define CREATE_ARGB_FUNCTIONS(depth, name, shift, a, r, g, b) \
|
|
static void \
|
|
gst_shape_wipe_blend_##name##_##depth (GstShapeWipe * self, GstBuffer * inbuf, \
|
|
GstBuffer * maskbuf, GstBuffer * outbuf) \
|
|
{ \
|
|
const guint##depth *mask = (const guint##depth *) GST_BUFFER_DATA (maskbuf); \
|
|
const guint8 *input = (const guint8 *) GST_BUFFER_DATA (inbuf); \
|
|
guint8 *output = (guint8 *) GST_BUFFER_DATA (outbuf); \
|
|
guint i, j; \
|
|
guint mask_increment = ((depth == 16) ? GST_ROUND_UP_2 (self->width) : \
|
|
GST_ROUND_UP_4 (self->width)) - self->width; \
|
|
gfloat position = self->mask_position; \
|
|
gfloat low = position - (self->mask_border / 2.0f); \
|
|
gfloat high = position + (self->mask_border / 2.0f); \
|
|
guint32 low_i, high_i, position_i, round_i; \
|
|
gint width = self->width, height = self->height; \
|
|
\
|
|
if (low < 0.0f) { \
|
|
high = 0.0f; \
|
|
low = 0.0f; \
|
|
} \
|
|
\
|
|
if (high > 1.0f) { \
|
|
low = 1.0f; \
|
|
high = 1.0f; \
|
|
} \
|
|
\
|
|
position_i = position * 65536; \
|
|
low_i = low * 65536; \
|
|
high_i = high * 65536; \
|
|
round_i = (high_i - low_i) >> 1; \
|
|
\
|
|
for (i = 0; i < height; i++) { \
|
|
for (j = 0; j < width; j++) { \
|
|
guint32 in = *mask << shift; \
|
|
\
|
|
if (in < low_i) { \
|
|
output[a] = 0x00; /* A */ \
|
|
output[r] = input[r]; /* R */ \
|
|
output[g] = input[g]; /* G */ \
|
|
output[b] = input[b]; /* B */ \
|
|
} else if (in >= high_i) { \
|
|
output[a] = input[a]; /* A */ \
|
|
output[r] = input[r]; /* R */ \
|
|
output[g] = input[g]; /* G */ \
|
|
output[b] = input[b]; /* B */ \
|
|
} else { \
|
|
guint32 val; \
|
|
/* Note: This will never overflow or be larger than 255! */ \
|
|
val = (((in - low_i) << 16) + round_i) / (high_i - low_i); \
|
|
val = (val * input[a] + 32768) >> 16; \
|
|
\
|
|
output[a] = val; /* A */ \
|
|
output[r] = input[r]; /* R */ \
|
|
output[g] = input[g]; /* G */ \
|
|
output[b] = input[b]; /* B */ \
|
|
} \
|
|
\
|
|
mask++; \
|
|
input += 4; \
|
|
output += 4; \
|
|
} \
|
|
mask += mask_increment; \
|
|
} \
|
|
}
|
|
|
|
CREATE_ARGB_FUNCTIONS (16, argb, 0, 0, 1, 2, 3);
|
|
CREATE_ARGB_FUNCTIONS (8, argb, 8, 0, 1, 2, 3);
|
|
|
|
CREATE_ARGB_FUNCTIONS (16, bgra, 0, 3, 2, 1, 0);
|
|
CREATE_ARGB_FUNCTIONS (8, bgra, 8, 3, 2, 1, 0);
|
|
|
|
static GstFlowReturn
|
|
gst_shape_wipe_video_sink_chain (GstPad * pad, GstBuffer * buffer)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (GST_PAD_PARENT (pad));
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstBuffer *mask = NULL, *outbuf = NULL;
|
|
GstClockTime timestamp;
|
|
gboolean new_outbuf = FALSE;
|
|
|
|
if (G_UNLIKELY (self->fmt == GST_VIDEO_FORMAT_UNKNOWN))
|
|
goto not_negotiated;
|
|
|
|
timestamp = GST_BUFFER_TIMESTAMP (buffer);
|
|
timestamp =
|
|
gst_segment_to_stream_time (&self->segment, GST_FORMAT_TIME, timestamp);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (timestamp))
|
|
gst_object_sync_values (G_OBJECT (self), timestamp);
|
|
|
|
GST_LOG_OBJECT (self,
|
|
"Blending buffer with timestamp %" GST_TIME_FORMAT " at position %f",
|
|
GST_TIME_ARGS (timestamp), self->mask_position);
|
|
|
|
g_mutex_lock (self->mask_mutex);
|
|
if (self->shutdown)
|
|
goto shutdown;
|
|
|
|
if (!self->mask)
|
|
g_cond_wait (self->mask_cond, self->mask_mutex);
|
|
|
|
if (self->mask == NULL || self->shutdown) {
|
|
goto shutdown;
|
|
} else {
|
|
mask = gst_buffer_ref (self->mask);
|
|
}
|
|
g_mutex_unlock (self->mask_mutex);
|
|
|
|
if (!gst_shape_wipe_do_qos (self, GST_BUFFER_TIMESTAMP (buffer)))
|
|
goto qos;
|
|
|
|
/* Try to blend inplace, if it's not possible
|
|
* get a new buffer from downstream. */
|
|
if (!gst_buffer_is_writable (buffer)) {
|
|
ret =
|
|
gst_pad_alloc_buffer_and_set_caps (self->srcpad, GST_BUFFER_OFFSET_NONE,
|
|
GST_BUFFER_SIZE (buffer), GST_PAD_CAPS (self->srcpad), &outbuf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto alloc_failed;
|
|
|
|
gst_buffer_copy_metadata (outbuf, buffer, GST_BUFFER_COPY_ALL);
|
|
new_outbuf = TRUE;
|
|
} else {
|
|
outbuf = buffer;
|
|
}
|
|
|
|
switch (self->fmt) {
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
if (self->mask_bpp == 16)
|
|
gst_shape_wipe_blend_argb_16 (self, buffer, mask, outbuf);
|
|
else
|
|
gst_shape_wipe_blend_argb_8 (self, buffer, mask, outbuf);
|
|
break;
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
if (self->mask_bpp == 16)
|
|
gst_shape_wipe_blend_bgra_16 (self, buffer, mask, outbuf);
|
|
else
|
|
gst_shape_wipe_blend_bgra_8 (self, buffer, mask, outbuf);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
gst_buffer_unref (mask);
|
|
if (new_outbuf)
|
|
gst_buffer_unref (buffer);
|
|
|
|
ret = gst_pad_push (self->srcpad, outbuf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto push_failed;
|
|
|
|
return ret;
|
|
|
|
/* Errors */
|
|
not_negotiated:
|
|
GST_ERROR_OBJECT (self, "No valid caps yet");
|
|
gst_buffer_unref (buffer);
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
shutdown:
|
|
GST_DEBUG_OBJECT (self, "Shutting down");
|
|
gst_buffer_unref (buffer);
|
|
return GST_FLOW_WRONG_STATE;
|
|
qos:
|
|
GST_DEBUG_OBJECT (self, "Dropping buffer because of QoS");
|
|
gst_buffer_unref (buffer);
|
|
gst_buffer_unref (mask);
|
|
return GST_FLOW_OK;
|
|
alloc_failed:
|
|
GST_ERROR_OBJECT (self, "Buffer allocation from downstream failed: %s",
|
|
gst_flow_get_name (ret));
|
|
gst_buffer_unref (buffer);
|
|
gst_buffer_unref (mask);
|
|
return ret;
|
|
push_failed:
|
|
GST_ERROR_OBJECT (self, "Pushing buffer downstream failed: %s",
|
|
gst_flow_get_name (ret));
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_shape_wipe_mask_sink_chain (GstPad * pad, GstBuffer * buffer)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (GST_PAD_PARENT (pad));
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
g_mutex_lock (self->mask_mutex);
|
|
GST_DEBUG_OBJECT (self, "Setting new mask buffer: %" GST_PTR_FORMAT, buffer);
|
|
|
|
gst_buffer_replace (&self->mask, buffer);
|
|
g_cond_signal (self->mask_cond);
|
|
g_mutex_unlock (self->mask_mutex);
|
|
|
|
gst_buffer_unref (buffer);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_shape_wipe_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (element);
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
self->shutdown = FALSE;
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
/* Unblock video sink chain function */
|
|
g_mutex_lock (self->mask_mutex);
|
|
self->shutdown = TRUE;
|
|
g_cond_signal (self->mask_cond);
|
|
g_mutex_unlock (self->mask_mutex);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_shape_wipe_reset (self);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_shape_wipe_video_sink_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
gboolean ret;
|
|
|
|
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_NEWSEGMENT:{
|
|
GstFormat fmt;
|
|
gboolean is_update;
|
|
gint64 start, end, base;
|
|
gdouble rate;
|
|
|
|
gst_event_parse_new_segment (event, &is_update, &rate, &fmt, &start,
|
|
&end, &base);
|
|
if (fmt == GST_FORMAT_TIME) {
|
|
GST_DEBUG_OBJECT (pad,
|
|
"Got NEWSEGMENT event in GST_FORMAT_TIME, passing on (%"
|
|
GST_TIME_FORMAT " - %" GST_TIME_FORMAT ")", GST_TIME_ARGS (start),
|
|
GST_TIME_ARGS (end));
|
|
gst_segment_set_newsegment (&self->segment, is_update, rate, fmt, start,
|
|
end, base);
|
|
} else {
|
|
gst_segment_init (&self->segment, GST_FORMAT_TIME);
|
|
}
|
|
}
|
|
/* fall through */
|
|
case GST_EVENT_FLUSH_STOP:
|
|
gst_shape_wipe_reset_qos (self);
|
|
/* fall through */
|
|
default:
|
|
ret = gst_pad_push_event (self->srcpad, event);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (self);
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_shape_wipe_mask_sink_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
|
|
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_FLUSH_STOP:
|
|
g_mutex_lock (self->mask_mutex);
|
|
gst_buffer_replace (&self->mask, NULL);
|
|
g_mutex_unlock (self->mask_mutex);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Dropping all events here */
|
|
gst_event_unref (event);
|
|
|
|
gst_object_unref (self);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_shape_wipe_src_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
|
|
gboolean ret;
|
|
|
|
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_QOS:{
|
|
GstClockTimeDiff diff;
|
|
GstClockTime timestamp;
|
|
gdouble proportion;
|
|
|
|
gst_event_parse_qos (event, &proportion, &diff, ×tamp);
|
|
|
|
gst_shape_wipe_update_qos (self, proportion, diff, timestamp);
|
|
}
|
|
/* fall through */
|
|
default:
|
|
ret = gst_pad_push_event (self->video_sinkpad, event);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (self);
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (gst_shape_wipe_debug, "shapewipe", 0,
|
|
"shapewipe element");
|
|
|
|
gst_controller_init (NULL, NULL);
|
|
|
|
if (!gst_element_register (plugin, "shapewipe", GST_RANK_NONE,
|
|
GST_TYPE_SHAPE_WIPE))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"shapewipe",
|
|
"Shape Wipe transition filter",
|
|
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|