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Adding GstVideoSink object which will be used for video sink's subclassing.
Original commit message from CVS: Adding GstVideoSink object which will be used for video sink's subclassing.
This commit is contained in:
Julien Moutte
parent
b2d9616910
commit
9b3862a194
4 changed files with 578 additions and 2 deletions
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@ -2,10 +2,10 @@ librarydir = $(libdir)/gstreamer-@GST_MAJORMINOR@
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library_LTLIBRARIES = libgstvideo.la
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libgstvideo_la_SOURCES = video.c
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libgstvideo_la_SOURCES = video.c gstvideosink.c
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libgstvideoincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/video
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libgstvideoinclude_HEADERS = video.h
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libgstvideoinclude_HEADERS = video.h gstvideosink.h
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libgstvideo_la_LIBADD =
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libgstvideo_la_CFLAGS = $(GST_CFLAGS)
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372
gst-libs/gst/video/gstvideosink.c
Normal file
372
gst-libs/gst/video/gstvideosink.c
Normal file
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@ -0,0 +1,372 @@
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/*
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* GStreamer Video sink.
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*
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* Copyright (C) <2003> Julien Moutte <julien@moutte.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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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 "gstvideosink.h"
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/* VideoSink signals and args */
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enum {
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HAVE_VIDEO_OUT,
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HAVE_SIZE,
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FRAME_DISPLAYED,
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_WIDTH,
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ARG_HEIGHT,
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ARG_FRAMES_DISPLAYED,
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ARG_FRAME_TIME,
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};
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static GstElementClass *parent_class = NULL;
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static guint gst_videosink_signals[LAST_SIGNAL] = { 0 };
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/* Private methods */
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static void
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gst_videosink_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec)
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{
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GstVideoSink *videosink;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (object));
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videosink = GST_VIDEOSINK (object);
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switch (prop_id)
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{
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case ARG_WIDTH:
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gst_video_sink_set_geometry (videosink, g_value_get_int (value),
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videosink->height);
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break;
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case ARG_HEIGHT:
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gst_video_sink_set_geometry (videosink, videosink->width,
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g_value_get_int (value));
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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_videosink_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec)
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{
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GstVideoSink *videosink;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (object));
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videosink = GST_VIDEOSINK (object);
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switch (prop_id)
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{
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case ARG_WIDTH:
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g_value_set_int (value, videosink->width);
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break;
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case ARG_HEIGHT:
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g_value_set_int (value, videosink->height);
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break;
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case ARG_FRAMES_DISPLAYED:
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g_value_set_int (value, videosink->frames_displayed);
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break;
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case ARG_FRAME_TIME:
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g_value_set_int64 (value, videosink->frame_time);
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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_videosink_set_clock (GstElement *element, GstClock *clock)
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{
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GstVideoSink *videosink;
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videosink = GST_VIDEOSINK (element);
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videosink->clock = clock;
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}
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/* Initing stuff */
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static void
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gst_videosink_init (GstVideoSink *videosink)
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{
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videosink->video_out = NULL;
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videosink->width = -1;
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videosink->height = -1;
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videosink->frames_displayed = 0;
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videosink->frame_time = 0;
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videosink->clock = NULL;
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videosink->formats = NULL;
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}
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static void
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gst_videosink_class_init (GstVideoSinkClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH,
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g_param_spec_int ("width", "Width", "Width of the video output",
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G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HEIGHT,
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g_param_spec_int ("height", "Height", "Height of the video output",
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G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAMES_DISPLAYED,
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g_param_spec_int ("frames_displayed", "Frames displayed",
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"The number of frames displayed so far",
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G_MININT,G_MAXINT, 0, G_PARAM_READABLE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAME_TIME,
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g_param_spec_int ("frame_time", "Frame time", "The interval between frames",
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G_MININT, G_MAXINT, 0, G_PARAM_READABLE));
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gobject_class->set_property = gst_videosink_set_property;
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gobject_class->get_property = gst_videosink_get_property;
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gst_videosink_signals[FRAME_DISPLAYED] =
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g_signal_new ("frame_displayed",
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G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstVideoSinkClass, frame_displayed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_videosink_signals[HAVE_SIZE] =
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g_signal_new ("have_size",
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G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstVideoSinkClass, have_size),
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NULL, NULL,
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gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
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G_TYPE_UINT, G_TYPE_UINT);
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gst_videosink_signals[HAVE_VIDEO_OUT] =
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g_signal_new ("have_video_out",
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G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstVideoSinkClass, have_video_out),
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NULL, NULL,
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gst_marshal_VOID__POINTER, G_TYPE_NONE, 1,
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G_TYPE_POINTER);
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gstelement_class->set_clock = gst_videosink_set_clock;
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}
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/* Public virtual methods */
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/**
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* gst_video_sink_set_video_out:
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* @videosink: a #GstVideoSink to set the video out on.
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* @video_out: the #gpointer linking to video out.
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*
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* This will call the video sink's set_video_out method. You should use this
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* method to tell to a video sink to display video output to a specific
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* video out ressource.
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*/
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void
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gst_video_sink_set_video_out (GstVideoSink *videosink, gpointer video_out)
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{
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GstVideoSinkClass *class;
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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class = GST_VIDEOSINK_GET_CLASS (videosink);
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if (class->set_video_out)
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class->set_video_out (videosink, video_out);
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}
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/**
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* gst_video_sink_push_ui_event:
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* @videosink: a #GstVideoSink to push the event to.
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* @event: the #GstEvent to be pushed.
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*
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* This will push an event to the video sink. That event is supposed to be
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* a user interface event and will be forwarded upstream to provide
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* interactivity support.
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*/
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void
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gst_video_sink_push_ui_event (GstVideoSink *videosink, GstEvent *event)
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{
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GstVideoSinkClass *class;
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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class = GST_VIDEOSINK_GET_CLASS (videosink);
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if (class->push_ui_event)
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class->push_ui_event (videosink, event);
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}
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/**
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* gst_video_sink_set_geometry:
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* @videosink: a #GstVideoSink which geometry will be set.
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* @width: a width as a #gint.
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* @height: a height as a #gint.
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*
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* Set video sink's geometry to @width x @height. If that succeed you should
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* get the have_size signal being fired.
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*/
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void
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gst_video_sink_set_geometry (GstVideoSink *videosink, gint width, gint height)
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{
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GstVideoSinkClass *class;
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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class = GST_VIDEOSINK_GET_CLASS (videosink);
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if (class->set_geometry)
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class->set_geometry (videosink, width, height);
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}
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/* Public methods */
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/**
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* gst_video_sink_got_video_out:
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* @videosink: a #GstVideoSink which got a video out ressource.
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* @video_out: a #gpointer linking to the video out ressource.
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*
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* This will fire an have_video_out signal and update the internal object's
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* #gpointer.
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*
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* This function should be used by video sink developpers.
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*/
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void
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gst_video_sink_got_video_out (GstVideoSink *videosink, gpointer video_out)
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{
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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videosink->video_out = video_out;
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g_signal_emit (G_OBJECT (videosink), gst_videosink_signals[HAVE_VIDEO_OUT],
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0, video_out);
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}
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/**
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* gst_video_sink_got_video_size:
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* @videosink: a #GstVideoSink which received video geometry.
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* @width: a width as a #gint.
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* @height: a height as a #gint.
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*
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* This will fire an have_size signal and update the internal object's
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* geometry.
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*
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* This function should be used by video sink developpers.
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*/
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void
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gst_video_sink_got_video_size (GstVideoSink *videosink, gint width, gint height)
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{
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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videosink->width = width;
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videosink->height = height;
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g_signal_emit (G_OBJECT (videosink), gst_videosink_signals[HAVE_SIZE],
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0, width, height);
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}
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/**
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* gst_video_sink_frame_displayed:
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* @videosink: a #GstVideoSink which displayed a frame.
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*
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* This will fire an frame_displayed signal and update the internal object's
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* counter.
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*
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* This function should be used by video sink developpers.
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*/
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void
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gst_video_sink_frame_displayed (GstVideoSink *videosink)
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{
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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videosink->frames_displayed++;
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g_signal_emit (G_OBJECT (videosink),
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gst_videosink_signals[FRAME_DISPLAYED], 0);
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}
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/**
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* gst_video_sink_get_geometry:
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* @videosink: a #GstVideoSink which displayed a frame.
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* @width: a #gint pointer where the width will be set.
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* @height: a #gint pointer where the height will be set.
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*
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* This will fill set @width and @height with the video sink's current geometry.
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*/
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void
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gst_video_sink_get_geometry (GstVideoSink *videosink, gint *width, gint *height)
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{
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g_return_if_fail (videosink != NULL);
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g_return_if_fail (GST_IS_VIDEOSINK (videosink));
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*width = videosink->width;
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*height = videosink->height;
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}
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GType
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gst_videosink_get_type (void)
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{
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static GType videosink_type = 0;
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if (!videosink_type)
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{
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static const GTypeInfo videosink_info = {
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sizeof (GstVideoSinkClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_videosink_class_init,
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NULL,
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NULL,
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sizeof (GstVideoSink),
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0,
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(GInstanceInitFunc) gst_videosink_init,
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};
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videosink_type = g_type_register_static (GST_TYPE_ELEMENT,
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"GstVideoSink",
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&videosink_info, 0);
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}
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return videosink_type;
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}
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102
gst-libs/gst/video/gstvideosink.h
Normal file
102
gst-libs/gst/video/gstvideosink.h
Normal file
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@ -0,0 +1,102 @@
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/*
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* GStreamer Video sink.
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*
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* Copyright (C) <2003> Julien Moutte <julien@moutte.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
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*
|
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* This program 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 General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEOSINK_H__
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#define __GST_VIDEOSINK_H__
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#include <gst/gst.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_VIDEOSINK (gst_videosink_get_type())
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#define GST_VIDEOSINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEOSINK, GstVideoSink))
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#define GST_VIDEOSINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VIDEOSINK, GstVideoSink))
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#define GST_IS_VIDEOSINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEOSINK))
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#define GST_IS_VIDEOSINK_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VIDEOSINK))
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#define GST_VIDEOSINK_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VIDEOSINK, GstVideoSinkClass))
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#define GST_VIDEOSINK_PAD(obj) (GST_VIDEOSINK (obj)->sinkpad)
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#define GST_VIDEOSINK_WIDTH(obj) (GST_VIDEOSINK (obj)->width)
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#define GST_VIDEOSINK_HEIGHT(obj) (GST_VIDEOSINK (obj)->height)
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#define GST_VIDEOSINK_CLOCK(obj) (GST_VIDEOSINK (obj)->clock)
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typedef struct _GstVideoSink GstVideoSink;
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typedef struct _GstVideoSinkClass GstVideoSinkClass;
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struct _GstVideoSink {
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GstElement element;
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GstPad *sinkpad;
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gpointer video_out;
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gint width, height;
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gint frames_displayed;
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guint64 frame_time;
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GstClock *clock;
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|
||||
GstCaps *formats;
|
||||
};
|
||||
|
||||
struct _GstVideoSinkClass {
|
||||
GstElementClass parent_class;
|
||||
|
||||
/* public virtual methods */
|
||||
void (*set_video_out) (GstVideoSink *videosink, gpointer video_out);
|
||||
void (*push_ui_event) (GstVideoSink *videosink, GstEvent *event);
|
||||
void (*set_geometry) (GstVideoSink *videosink, gint width, gint height);
|
||||
|
||||
/* signals */
|
||||
void (*have_video_out) (GstVideoSink *element, gpointer video_out);
|
||||
void (*have_size) (GstVideoSink *element, gint width, gint height);
|
||||
void (*frame_displayed) (GstVideoSink *element);
|
||||
};
|
||||
|
||||
GType gst_videosink_get_type (void);
|
||||
|
||||
/* public virtual methods */
|
||||
void gst_video_sink_set_video_out (GstVideoSink *videosink, gpointer video_out);
|
||||
void gst_video_sink_push_ui_event (GstVideoSink *videosink, GstEvent *event);
|
||||
void gst_video_sink_set_geometry (GstVideoSink *videosink, gint width,
|
||||
gint height);
|
||||
|
||||
/* public methods to fire signals */
|
||||
void gst_video_sink_got_video_out (GstVideoSink *videosink, gpointer video_out);
|
||||
void gst_video_sink_got_video_size (GstVideoSink *videosink,
|
||||
gint width, gint height);
|
||||
void gst_video_sink_frame_displayed (GstVideoSink *videosink);
|
||||
|
||||
/* public methods */
|
||||
void gst_video_sink_get_geometry (GstVideoSink *videosink,
|
||||
gint *width, gint *height);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* __GST_VIDEOSINK_H__ */
|
||||
102
gst-libs/gst/video/videosink.h
Normal file
102
gst-libs/gst/video/videosink.h
Normal file
|
|
@ -0,0 +1,102 @@
|
|||
/*
|
||||
* GStreamer Video sink.
|
||||
*
|
||||
* Copyright (C) <2003> Julien Moutte <julien@moutte.net>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program 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 General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_VIDEOSINK_H__
|
||||
#define __GST_VIDEOSINK_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#define GST_TYPE_VIDEOSINK (gst_videosink_get_type())
|
||||
#define GST_VIDEOSINK(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEOSINK, GstVideoSink))
|
||||
#define GST_VIDEOSINK_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VIDEOSINK, GstVideoSink))
|
||||
#define GST_IS_VIDEOSINK(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEOSINK))
|
||||
#define GST_IS_VIDEOSINK_CLASS(obj) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VIDEOSINK))
|
||||
#define GST_VIDEOSINK_GET_CLASS(obj) \
|
||||
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VIDEOSINK, GstVideoSinkClass))
|
||||
|
||||
#define GST_VIDEOSINK_PAD(obj) (GST_VIDEOSINK (obj)->sinkpad)
|
||||
#define GST_VIDEOSINK_WIDTH(obj) (GST_VIDEOSINK (obj)->width)
|
||||
#define GST_VIDEOSINK_HEIGHT(obj) (GST_VIDEOSINK (obj)->height)
|
||||
#define GST_VIDEOSINK_CLOCK(obj) (GST_VIDEOSINK (obj)->clock)
|
||||
|
||||
typedef struct _GstVideoSink GstVideoSink;
|
||||
typedef struct _GstVideoSinkClass GstVideoSinkClass;
|
||||
|
||||
struct _GstVideoSink {
|
||||
GstElement element;
|
||||
|
||||
GstPad *sinkpad;
|
||||
|
||||
gpointer video_out;
|
||||
|
||||
gint width, height;
|
||||
gint frames_displayed;
|
||||
guint64 frame_time;
|
||||
|
||||
GstClock *clock;
|
||||
|
||||
GstCaps *formats;
|
||||
};
|
||||
|
||||
struct _GstVideoSinkClass {
|
||||
GstElementClass parent_class;
|
||||
|
||||
/* public virtual methods */
|
||||
void (*set_video_out) (GstVideoSink *videosink, gpointer video_out);
|
||||
void (*push_ui_event) (GstVideoSink *videosink, GstEvent *event);
|
||||
void (*set_geometry) (GstVideoSink *videosink, gint width, gint height);
|
||||
|
||||
/* signals */
|
||||
void (*have_video_out) (GstVideoSink *element, gpointer video_out);
|
||||
void (*have_size) (GstVideoSink *element, gint width, gint height);
|
||||
void (*frame_displayed) (GstVideoSink *element);
|
||||
};
|
||||
|
||||
GType gst_videosink_get_type (void);
|
||||
|
||||
/* public virtual methods */
|
||||
void gst_video_sink_set_video_out (GstVideoSink *videosink, gpointer video_out);
|
||||
void gst_video_sink_push_ui_event (GstVideoSink *videosink, GstEvent *event);
|
||||
void gst_video_sink_set_geometry (GstVideoSink *videosink, gint width,
|
||||
gint height);
|
||||
|
||||
/* public methods to fire signals */
|
||||
void gst_video_sink_got_video_out (GstVideoSink *videosink, gpointer video_out);
|
||||
void gst_video_sink_got_video_size (GstVideoSink *videosink,
|
||||
gint width, gint height);
|
||||
void gst_video_sink_frame_displayed (GstVideoSink *videosink);
|
||||
|
||||
/* public methods */
|
||||
void gst_video_sink_get_geometry (GstVideoSink *videosink,
|
||||
gint *width, gint *height);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* __GST_VIDEOSINK_H__ */
|
||||
Loading…
Reference in a new issue