mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 20:21:24 +00:00
1e5b084282
Original commit message from CVS: Don't set the actual video size in gst_video_sink_got_video_size(). This could probably be replaced once we handle pixel aspect ratios.
369 lines
10 KiB
C
369 lines
10 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstvideosink.h"
|
|
|
|
/* VideoSink signals and args */
|
|
|
|
enum {
|
|
HAVE_VIDEO_OUT,
|
|
HAVE_SIZE,
|
|
FRAME_DISPLAYED,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
|
|
enum {
|
|
ARG_0,
|
|
ARG_WIDTH,
|
|
ARG_HEIGHT,
|
|
ARG_FRAMES_DISPLAYED,
|
|
ARG_FRAME_TIME,
|
|
};
|
|
|
|
static GstElementClass *parent_class = NULL;
|
|
static guint gst_videosink_signals[LAST_SIGNAL] = { 0 };
|
|
|
|
/* Private methods */
|
|
|
|
static void
|
|
gst_videosink_set_property (GObject *object, guint prop_id,
|
|
const GValue *value, GParamSpec *pspec)
|
|
{
|
|
GstVideoSink *videosink;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (object));
|
|
|
|
videosink = GST_VIDEOSINK (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case ARG_WIDTH:
|
|
gst_video_sink_set_geometry (videosink, g_value_get_int (value),
|
|
videosink->height);
|
|
break;
|
|
case ARG_HEIGHT:
|
|
gst_video_sink_set_geometry (videosink, videosink->width,
|
|
g_value_get_int (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videosink_get_property (GObject *object, guint prop_id,
|
|
GValue *value, GParamSpec *pspec)
|
|
{
|
|
GstVideoSink *videosink;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (object));
|
|
|
|
videosink = GST_VIDEOSINK (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case ARG_WIDTH:
|
|
g_value_set_int (value, videosink->width);
|
|
break;
|
|
case ARG_HEIGHT:
|
|
g_value_set_int (value, videosink->height);
|
|
break;
|
|
case ARG_FRAMES_DISPLAYED:
|
|
g_value_set_int (value, videosink->frames_displayed);
|
|
break;
|
|
case ARG_FRAME_TIME:
|
|
g_value_set_int64 (value, videosink->frame_time);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videosink_set_clock (GstElement *element, GstClock *clock)
|
|
{
|
|
GstVideoSink *videosink;
|
|
|
|
videosink = GST_VIDEOSINK (element);
|
|
|
|
videosink->clock = clock;
|
|
}
|
|
|
|
/* Initing stuff */
|
|
|
|
static void
|
|
gst_videosink_init (GstVideoSink *videosink)
|
|
{
|
|
videosink->video_out = NULL;
|
|
videosink->width = -1;
|
|
videosink->height = -1;
|
|
videosink->frames_displayed = 0;
|
|
videosink->frame_time = 0;
|
|
|
|
videosink->clock = NULL;
|
|
videosink->formats = NULL;
|
|
}
|
|
|
|
static void
|
|
gst_videosink_class_init (GstVideoSinkClass *klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
|
|
gobject_class = (GObjectClass*)klass;
|
|
gstelement_class = (GstElementClass*)klass;
|
|
|
|
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH,
|
|
g_param_spec_int ("width", "Width", "Width of the video output",
|
|
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HEIGHT,
|
|
g_param_spec_int ("height", "Height", "Height of the video output",
|
|
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAMES_DISPLAYED,
|
|
g_param_spec_int ("frames_displayed", "Frames displayed",
|
|
"The number of frames displayed so far",
|
|
G_MININT,G_MAXINT, 0, G_PARAM_READABLE));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAME_TIME,
|
|
g_param_spec_int64 ("frame_time", "Frame time", "The interval between frames",
|
|
G_MININT64, G_MAXINT64, 0, G_PARAM_READABLE));
|
|
|
|
gobject_class->set_property = gst_videosink_set_property;
|
|
gobject_class->get_property = gst_videosink_get_property;
|
|
|
|
gst_videosink_signals[FRAME_DISPLAYED] =
|
|
g_signal_new ("frame_displayed",
|
|
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstVideoSinkClass, frame_displayed),
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
|
|
|
|
gst_videosink_signals[HAVE_SIZE] =
|
|
g_signal_new ("have_size",
|
|
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstVideoSinkClass, have_size),
|
|
NULL, NULL,
|
|
gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
|
|
G_TYPE_UINT, G_TYPE_UINT);
|
|
|
|
gst_videosink_signals[HAVE_VIDEO_OUT] =
|
|
g_signal_new ("have_video_out",
|
|
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstVideoSinkClass, have_video_out),
|
|
NULL, NULL,
|
|
gst_marshal_VOID__POINTER, G_TYPE_NONE, 1,
|
|
G_TYPE_POINTER);
|
|
|
|
gstelement_class->set_clock = gst_videosink_set_clock;
|
|
}
|
|
|
|
/* Public virtual methods */
|
|
|
|
/**
|
|
* gst_video_sink_set_video_out:
|
|
* @videosink: a #GstVideoSink to set the video out on.
|
|
* @video_out: the #gpointer linking to video out.
|
|
*
|
|
* This will call the video sink's set_video_out method. You should use this
|
|
* method to tell to a video sink to display video output to a specific
|
|
* video out ressource.
|
|
*/
|
|
void
|
|
gst_video_sink_set_video_out (GstVideoSink *videosink, gpointer video_out)
|
|
{
|
|
GstVideoSinkClass *class;
|
|
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
|
|
class = GST_VIDEOSINK_GET_CLASS (videosink);
|
|
|
|
if (class->set_video_out)
|
|
class->set_video_out (videosink, video_out);
|
|
}
|
|
|
|
/**
|
|
* gst_video_sink_push_ui_event:
|
|
* @videosink: a #GstVideoSink to push the event to.
|
|
* @event: the #GstEvent to be pushed.
|
|
*
|
|
* This will push an event to the video sink. That event is supposed to be
|
|
* a user interface event and will be forwarded upstream to provide
|
|
* interactivity support.
|
|
*/
|
|
void
|
|
gst_video_sink_push_ui_event (GstVideoSink *videosink, GstEvent *event)
|
|
{
|
|
GstVideoSinkClass *class;
|
|
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
|
|
class = GST_VIDEOSINK_GET_CLASS (videosink);
|
|
|
|
if (class->push_ui_event)
|
|
class->push_ui_event (videosink, event);
|
|
}
|
|
|
|
/**
|
|
* gst_video_sink_set_geometry:
|
|
* @videosink: a #GstVideoSink which geometry will be set.
|
|
* @width: a width as a #gint.
|
|
* @height: a height as a #gint.
|
|
*
|
|
* Set video sink's geometry to @width x @height. If that succeed you should
|
|
* get the have_size signal being fired.
|
|
*/
|
|
void
|
|
gst_video_sink_set_geometry (GstVideoSink *videosink, gint width, gint height)
|
|
{
|
|
GstVideoSinkClass *class;
|
|
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
|
|
class = GST_VIDEOSINK_GET_CLASS (videosink);
|
|
|
|
if (class->set_geometry)
|
|
class->set_geometry (videosink, width, height);
|
|
}
|
|
|
|
/* Public methods */
|
|
|
|
/**
|
|
* gst_video_sink_got_video_out:
|
|
* @videosink: a #GstVideoSink which got a video out ressource.
|
|
* @video_out: a #gpointer linking to the video out ressource.
|
|
*
|
|
* This will fire an have_video_out signal and update the internal object's
|
|
* #gpointer.
|
|
*
|
|
* This function should be used by video sink developpers.
|
|
*/
|
|
void
|
|
gst_video_sink_got_video_out (GstVideoSink *videosink, gpointer video_out)
|
|
{
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
|
|
videosink->video_out = video_out;
|
|
|
|
g_signal_emit (G_OBJECT (videosink), gst_videosink_signals[HAVE_VIDEO_OUT],
|
|
0, video_out);
|
|
}
|
|
|
|
/**
|
|
* gst_video_sink_got_video_size:
|
|
* @videosink: a #GstVideoSink which received video geometry.
|
|
* @width: a width as a #gint.
|
|
* @height: a height as a #gint.
|
|
*
|
|
* This will fire an have_size signal and update the internal object's
|
|
* geometry.
|
|
*
|
|
* This function should be used by video sink developpers.
|
|
*/
|
|
void
|
|
gst_video_sink_got_video_size (GstVideoSink *videosink, gint width, gint height)
|
|
{
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
|
|
g_signal_emit (G_OBJECT (videosink), gst_videosink_signals[HAVE_SIZE],
|
|
0, width, height);
|
|
}
|
|
|
|
/**
|
|
* gst_video_sink_frame_displayed:
|
|
* @videosink: a #GstVideoSink which displayed a frame.
|
|
*
|
|
* This will fire an frame_displayed signal and update the internal object's
|
|
* counter.
|
|
*
|
|
* This function should be used by video sink developpers.
|
|
*/
|
|
void
|
|
gst_video_sink_frame_displayed (GstVideoSink *videosink)
|
|
{
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
|
|
videosink->frames_displayed++;
|
|
|
|
g_signal_emit (G_OBJECT (videosink),
|
|
gst_videosink_signals[FRAME_DISPLAYED], 0);
|
|
}
|
|
|
|
/**
|
|
* gst_video_sink_get_geometry:
|
|
* @videosink: a #GstVideoSink which displayed a frame.
|
|
* @width: a #gint pointer where the width will be set.
|
|
* @height: a #gint pointer where the height will be set.
|
|
*
|
|
* This will fill set @width and @height with the video sink's current geometry.
|
|
*/
|
|
void
|
|
gst_video_sink_get_geometry (GstVideoSink *videosink, gint *width, gint *height)
|
|
{
|
|
g_return_if_fail (videosink != NULL);
|
|
g_return_if_fail (GST_IS_VIDEOSINK (videosink));
|
|
*width = videosink->width;
|
|
*height = videosink->height;
|
|
}
|
|
|
|
GType
|
|
gst_videosink_get_type (void)
|
|
{
|
|
static GType videosink_type = 0;
|
|
|
|
if (!videosink_type)
|
|
{
|
|
static const GTypeInfo videosink_info = {
|
|
sizeof (GstVideoSinkClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) gst_videosink_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstVideoSink),
|
|
0,
|
|
(GInstanceInitFunc) gst_videosink_init,
|
|
};
|
|
|
|
videosink_type = g_type_register_static (GST_TYPE_ELEMENT,
|
|
"GstVideoSink",
|
|
&videosink_info, 0);
|
|
}
|
|
|
|
return videosink_type;
|
|
}
|