mutter/clutter/clutter-video-texture.c

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
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/**
* SECTION:clutter-video-texture
* @short_description: Actor for playback of video files.
*
* #ClutterVideoTexture is a #ClutterTexture that plays video files.
*/
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#include "clutter-video-texture.h"
#include "clutter-main.h"
#include "clutter-private.h" /* for DBG */
#include "clutter-marshal.h"
#include <gst/gst.h>
#include <gst/video/gstvideosink.h>
#include <gst/audio/gstbaseaudiosink.h>
#include <GL/glx.h>
#include <GL/gl.h>
#include <glib.h>
struct ClutterVideoTexturePrivate
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{
GstElement *playbin;
char *uri;
gboolean can_seek;
int buffer_percent;
int duration;
gboolean force_aspect_ratio;
guint tick_timeout_id;
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};
enum {
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PROP_0,
/* ClutterMedia proprs */
PROP_URI,
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PROP_PLAYING,
PROP_POSITION,
PROP_VOLUME,
PROP_CAN_SEEK,
PROP_BUFFER_PERCENT,
PROP_DURATION,
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/* Extra texture props */
PROP_FORCE_ASPECT_RATIO
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};
#define TICK_TIMEOUT 0.5
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static void clutter_media_init (ClutterMediaInterface *iface);
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static gboolean tick_timeout (ClutterVideoTexture *video_texture);
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G_DEFINE_TYPE_EXTENDED (ClutterVideoTexture, \
clutter_video_texture, \
CLUTTER_TYPE_TEXTURE, \
0, \
G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_MEDIA, \
clutter_media_init));
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/* Interface implementation */
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static void
set_uri (ClutterMedia *media,
const char *uri)
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{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
GstState state, pending;
g_return_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture));
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priv = video_texture->priv;
if (!priv->playbin)
return;
if (priv->uri)
g_free (priv->uri);
if (uri)
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{
priv->uri = g_strdup (uri);
/**
* Ensure the tick timeout is installed.
*
* We also have it installed in PAUSED state, because
* seeks etc may have a delayed effect on the position.
**/
if (priv->tick_timeout_id == 0)
{
priv->tick_timeout_id = g_timeout_add (TICK_TIMEOUT * 1000,
(GSourceFunc) tick_timeout,
video_texture);
}
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}
else
{
priv->uri = NULL;
if (priv->tick_timeout_id > 0)
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{
g_source_remove (priv->tick_timeout_id);
priv->tick_timeout_id = 0;
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}
}
priv->can_seek = FALSE;
priv->duration = 0;
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gst_element_get_state (priv->playbin, &state, &pending, 0);
if (pending)
state = pending;
gst_element_set_state (priv->playbin, GST_STATE_NULL);
g_object_set (priv->playbin,
"uri", uri,
NULL);
/**
* Restore state.
**/
if (uri)
gst_element_set_state (priv->playbin, state);
/*
* Emit notififications for all these to make sure UI is not showing
* any properties of the old URI.
*/
g_object_notify (G_OBJECT (video_texture), "uri");
g_object_notify (G_OBJECT (video_texture), "can-seek");
g_object_notify (G_OBJECT (video_texture), "duration");
g_object_notify (G_OBJECT (video_texture), "position");
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}
static const char *
get_uri (ClutterMedia *media)
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{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
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g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), NULL);
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priv = video_texture->priv;
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return priv->uri;
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}
static void
set_playing (ClutterMedia *media,
gboolean playing)
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{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
g_return_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture));
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priv = video_texture->priv;
if (!priv->playbin)
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return;
if (priv->uri)
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{
GstState state;
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if (playing)
state = GST_STATE_PLAYING;
else
state = GST_STATE_PAUSED;
gst_element_set_state (video_texture->priv->playbin, state);
}
else
{
if (playing)
g_warning ("Tried to play, but no URI is loaded.");
}
g_object_notify (G_OBJECT (video_texture), "playing");
g_object_notify (G_OBJECT (video_texture), "position");
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}
static gboolean
get_playing (ClutterMedia *media)
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{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
GstState state, pending;
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g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), FALSE);
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priv = video_texture->priv;
if (!priv->playbin)
return FALSE;
gst_element_get_state (priv->playbin, &state, &pending, 0);
if (pending)
return (pending == GST_STATE_PLAYING);
else
return (state == GST_STATE_PLAYING);
}
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static void
set_position (ClutterMedia *media,
int position) /* seconds */
{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
GstState state, pending;
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g_return_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture));
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priv = video_texture->priv;
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if (!priv->playbin)
return;
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gst_element_get_state (priv->playbin, &state, &pending, 0);
if (pending)
state = pending;
gst_element_set_state (priv->playbin, GST_STATE_PAUSED);
gst_element_seek (priv->playbin,
1.0,
GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET,
position * GST_SECOND,
0, 0);
gst_element_set_state (priv->playbin, state);
}
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static int
get_position (ClutterMedia *media)
{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
GstQuery *query;
gint64 position;
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g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), -1);
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priv = video_texture->priv;
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if (!priv->playbin)
return -1;
query = gst_query_new_position (GST_FORMAT_TIME);
if (gst_element_query (priv->playbin, query))
gst_query_parse_position (query, NULL, &position);
else
position = 0;
gst_query_unref (query);
return (position / GST_SECOND);
}
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static void
set_volume (ClutterMedia *media,
double volume)
{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
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g_return_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture));
// g_return_if_fail (volume >= 0.0 && volume <= GST_VOL_MAX);
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priv = video_texture->priv;
if (!priv->playbin)
return;
g_object_set (G_OBJECT (video_texture->priv->playbin),
"volume", volume,
NULL);
g_object_notify (G_OBJECT (video_texture), "volume");
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}
static double
get_volume (ClutterMedia *media)
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{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
ClutterVideoTexturePrivate *priv;
double volume;
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g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), 0.0);
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priv = video_texture->priv;
if (!priv->playbin)
return 0.0;
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g_object_get (priv->playbin,
"volume", &volume,
NULL);
return volume;
}
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static gboolean
can_seek (ClutterMedia *media)
{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
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g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), FALSE);
return video_texture->priv->can_seek;
}
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static int
get_buffer_percent (ClutterMedia *media)
{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
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g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), -1);
return video_texture->priv->buffer_percent;
}
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static int
get_duration (ClutterMedia *media)
{
ClutterVideoTexture *video_texture = CLUTTER_VIDEO_TEXTURE(media);
g_return_val_if_fail (CLUTTER_IS_VIDEO_TEXTURE (video_texture), -1);
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return video_texture->priv->duration;
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}
static void
clutter_media_init (ClutterMediaInterface *iface)
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{
iface->set_uri = set_uri;
iface->get_uri = get_uri;
iface->set_playing = set_playing;
iface->get_playing = get_playing;
iface->set_position = set_position;
iface->get_position = get_position;
iface->set_volume = set_volume;
iface->get_volume = get_volume;
iface->can_seek = can_seek;
iface->get_buffer_percent = get_buffer_percent;
iface->get_duration = get_duration;
}
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static void
clutter_video_texture_dispose (GObject *object)
{
ClutterVideoTexture *self;
ClutterVideoTexturePrivate *priv;
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self = CLUTTER_VIDEO_TEXTURE(object);
priv = self->priv;
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/* FIXME: flush an errors off bus ? */
/* gst_bus_set_flushing (priv->bus, TRUE); */
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if (priv->playbin)
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{
gst_element_set_state (priv->playbin, GST_STATE_NULL);
gst_object_unref (GST_OBJECT (priv->playbin));
priv->playbin = NULL;
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}
if (priv->tick_timeout_id > 0)
{
g_source_remove (priv->tick_timeout_id);
priv->tick_timeout_id = 0;
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}
G_OBJECT_CLASS (clutter_video_texture_parent_class)->dispose (object);
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}
static void
clutter_video_texture_finalize (GObject *object)
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{
ClutterVideoTexture *self;
ClutterVideoTexturePrivate *priv;
self = CLUTTER_VIDEO_TEXTURE(object);
priv = self->priv;
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if (priv->uri)
g_free(priv->uri);
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G_OBJECT_CLASS (clutter_video_texture_parent_class)->finalize (object);
}
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static void
clutter_video_texture_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
ClutterVideoTexture *video_texture;
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video_texture = CLUTTER_VIDEO_TEXTURE(object);
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switch (property_id)
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{
case PROP_URI:
clutter_media_set_uri (CLUTTER_MEDIA(video_texture),
g_value_get_string (value));
break;
case PROP_PLAYING:
clutter_media_set_playing (CLUTTER_MEDIA(video_texture),
g_value_get_boolean (value));
break;
case PROP_POSITION:
clutter_media_set_position (CLUTTER_MEDIA(video_texture),
g_value_get_int (value));
break;
case PROP_VOLUME:
clutter_media_set_volume (CLUTTER_MEDIA(video_texture),
g_value_get_double (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
}
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static void
clutter_video_texture_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
ClutterVideoTexture *video_texture;
ClutterMedia *media;
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video_texture = CLUTTER_VIDEO_TEXTURE (object);
media = CLUTTER_MEDIA (video_texture);
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switch (property_id)
{
case PROP_URI:
g_value_set_string (value, clutter_media_get_uri (media));
break;
case PROP_PLAYING:
g_value_set_boolean (value, clutter_media_get_playing (media));
break;
case PROP_POSITION:
g_value_set_int (value, clutter_media_get_position (media));
break;
case PROP_VOLUME:
g_value_set_double (value, clutter_media_get_volume (media));
break;
case PROP_CAN_SEEK:
g_value_set_boolean (value, clutter_media_get_can_seek (media));
break;
case PROP_BUFFER_PERCENT:
g_value_set_int (value, clutter_media_get_buffer_percent (media));
break;
case PROP_DURATION:
g_value_set_int (value, clutter_media_get_duration (media));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
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static void
clutter_video_texture_class_init (ClutterVideoTextureClass *klass)
{
GObjectClass *object_class;
ClutterActorClass *actor_class;
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object_class = (GObjectClass*)klass;
actor_class = (ClutterActorClass*)klass;
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object_class->dispose = clutter_video_texture_dispose;
object_class->finalize = clutter_video_texture_finalize;
object_class->set_property = clutter_video_texture_set_property;
object_class->get_property = clutter_video_texture_get_property;
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/* Interface props */
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g_object_class_override_property (object_class, PROP_URI, "uri");
g_object_class_override_property (object_class, PROP_PLAYING, "playing");
g_object_class_override_property (object_class, PROP_POSITION, "position");
g_object_class_override_property (object_class, PROP_VOLUME, "volume");
g_object_class_override_property (object_class, PROP_CAN_SEEK, "can-seek");
g_object_class_override_property (object_class, PROP_DURATION, "duration");
g_object_class_override_property (object_class, PROP_BUFFER_PERCENT,
"buffer-percent" );
}
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static void
bus_message_error_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
GError *error;
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error = NULL;
gst_message_parse_error (message, &error, NULL);
g_signal_emit_by_name (CLUTTER_MEDIA(video_texture), "error", error);
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g_error_free (error);
}
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static void
bus_message_eos_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
g_object_notify (G_OBJECT (video_texture), "position");
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g_signal_emit_by_name (CLUTTER_MEDIA(video_texture), "eos");
}
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static void
bus_message_tag_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
GstTagList *tag_list;
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gst_message_parse_tag (message, &tag_list);
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g_signal_emit_by_name (CLUTTER_MEDIA(video_texture),
"metadata-available",
tag_list);
gst_tag_list_free (tag_list);
}
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static void
bus_message_buffering_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
const GstStructure *str;
str = gst_message_get_structure (message);
if (!str)
return;
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if (!gst_structure_get_int (str,
"buffer-percent",
&video_texture->priv->buffer_percent))
return;
g_object_notify (G_OBJECT (video_texture), "buffer-percent");
}
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static void
bus_message_duration_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
GstFormat format;
gint64 duration;
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gst_message_parse_duration (message,
&format,
&duration);
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if (format != GST_FORMAT_TIME)
return;
video_texture->priv->duration = duration / GST_SECOND;
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g_object_notify (G_OBJECT (video_texture), "duration");
}
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static void
bus_message_actor_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
const GstStructure *str;
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str = gst_message_get_structure (message);
if (!str)
return;
}
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static void
bus_message_state_change_cb (GstBus *bus,
GstMessage *message,
ClutterVideoTexture *video_texture)
{
gpointer src;
GstState old_state, new_state;
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src = GST_MESSAGE_SRC (message);
if (src != video_texture->priv->playbin)
return;
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gst_message_parse_state_changed (message, &old_state, &new_state, NULL);
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if (old_state == GST_STATE_READY &&
new_state == GST_STATE_PAUSED)
{
GstQuery *query;
/**
* Determine whether we can seek.
**/
query = gst_query_new_seeking (GST_FORMAT_TIME);
if (gst_element_query (video_texture->priv->playbin, query)) {
gst_query_parse_seeking (query,
NULL,
&video_texture->priv->can_seek,
NULL,
NULL);
} else {
/*
* Could not query for ability to seek. Determine
* using URI.
*/
if (g_str_has_prefix (video_texture->priv->uri,
"http://")) {
video_texture->priv->can_seek = FALSE;
} else {
video_texture->priv->can_seek = TRUE;
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}
}
gst_query_unref (query);
g_object_notify (G_OBJECT (video_texture), "can-seek");
/**
* Determine the duration.
**/
query = gst_query_new_duration (GST_FORMAT_TIME);
if (gst_element_query (video_texture->priv->playbin, query))
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{
gint64 duration;
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gst_query_parse_duration (query, NULL, &duration);
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video_texture->priv->duration = duration / GST_SECOND;
g_object_notify (G_OBJECT (video_texture), "duration");
}
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gst_query_unref (query);
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}
}
static gboolean
tick_timeout (ClutterVideoTexture *video_texture)
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{
g_object_notify (G_OBJECT (video_texture), "position");
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return TRUE;
}
static void
fakesink_handoff_cb (GstElement *fakesrc,
GstBuffer *buffer,
GstPad *pad,
gpointer user_data)
{
GstStructure *structure;
int width, height;
GdkPixbuf *pixb;
structure = gst_caps_get_structure(GST_CAPS(buffer->caps), 0);
gst_structure_get_int(structure, "width", &width);
gst_structure_get_int(structure, "height", &height);
/* FIXME: We really dont want to do this every time as gobject creation
* really need a clutter_texture_set_from_data call ?
*/
pixb = gdk_pixbuf_new_from_data (GST_BUFFER_DATA (buffer),
GDK_COLORSPACE_RGB,
FALSE,
8,
width,
height,
(3 * width + 3) &~ 3,
NULL,
NULL);
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if (pixb)
{
clutter_texture_set_pixbuf (CLUTTER_TEXTURE(user_data), pixb);
g_object_unref(G_OBJECT(pixb));
}
}
static gboolean
lay_pipeline (ClutterVideoTexture *video_texture)
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{
ClutterVideoTexturePrivate *priv;
GstElement *audio_sink = NULL;
GstElement *video_sink, *video_bin, *video_capsfilter;
GstCaps *video_filtercaps;
GstPad *video_ghost_pad;
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priv = video_texture->priv;
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priv->playbin = gst_element_factory_make ("playbin", "playbin");
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if (!priv->playbin)
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{
g_warning ("Unable to create playbin GST actor.");
return FALSE;
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}
audio_sink = gst_element_factory_make ("gconfaudiosink", "audio-sink");
if (!audio_sink)
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{
audio_sink = gst_element_factory_make ("autoaudiosink", "audio-sink");
if (!audio_sink)
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{
audio_sink = gst_element_factory_make ("alsasink", "audio-sink");
g_warning ("Could not create a GST audio_sink. "
"Audio unavailable.");
if (!audio_sink) /* Need to bother ? */
audio_sink = gst_element_factory_make ("fakesink", "audio-sink");
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}
}
video_sink = gst_element_factory_make ("fakesink", "fakesink");
if (video_sink == NULL)
{
g_warning ("Could not create actor 'fakesink' for video playback");
priv->playbin = NULL;
return FALSE;
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}
video_bin = gst_bin_new ("video-bin");
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video_capsfilter = gst_element_factory_make ("capsfilter",
"video-capsfilter");
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video_filtercaps
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= gst_caps_new_simple("video/x-raw-rgb",
"bpp", G_TYPE_INT, 24,
"depth", G_TYPE_INT, 24,
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
/* >> 8 for 24bpp */
"red_mask", G_TYPE_INT, 0xff0000,
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"green_mask", G_TYPE_INT, 0xff00,
"blue_mask", G_TYPE_INT, 0xff,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE,
0, 1, G_MAXINT, 1,
NULL);
g_object_set(G_OBJECT(video_capsfilter),
"caps", video_filtercaps,
NULL);
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gst_bin_add(GST_BIN(video_bin), video_capsfilter);
gst_bin_add(GST_BIN(video_bin), video_sink);
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gst_element_link (video_capsfilter, video_sink);
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video_ghost_pad = gst_ghost_pad_new ("sink",
gst_element_get_pad (video_capsfilter,
"sink"));
gst_element_add_pad (video_bin, video_ghost_pad);
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g_object_set (G_OBJECT(video_sink),
"signal-handoffs", TRUE,
"sync", TRUE,
NULL);
g_signal_connect(G_OBJECT (video_sink),
"handoff",
G_CALLBACK(fakesink_handoff_cb),
video_texture);
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g_object_set (G_OBJECT (priv->playbin),
"video-sink", video_bin,
"audio-sink", audio_sink,
NULL);
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return TRUE;
}
static void
clutter_video_texture_init (ClutterVideoTexture *video_texture)
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{
ClutterVideoTexturePrivate *priv;
GstBus *bus;
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priv = g_new0 (ClutterVideoTexturePrivate, 1);
video_texture->priv = priv;
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if (!lay_pipeline(video_texture))
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{
g_warning("Failed to initiate suitable playback pipeline.");
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return;
}
bus = gst_pipeline_get_bus (GST_PIPELINE (priv->playbin));
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gst_bus_add_signal_watch (bus);
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g_signal_connect_object (bus,
"message::error",
G_CALLBACK (bus_message_error_cb),
video_texture,
0);
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g_signal_connect_object (bus,
"message::eos",
G_CALLBACK (bus_message_eos_cb),
video_texture,
0);
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g_signal_connect_object (bus,
"message::tag",
G_CALLBACK (bus_message_tag_cb),
video_texture,
0);
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g_signal_connect_object (bus,
"message::buffering",
G_CALLBACK (bus_message_buffering_cb),
video_texture,
0);
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g_signal_connect_object (bus,
"message::duration",
G_CALLBACK (bus_message_duration_cb),
video_texture,
0);
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g_signal_connect_object (bus,
"message::actor",
G_CALLBACK (bus_message_actor_cb),
video_texture,
0);
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g_signal_connect_object (bus,
"message::state-changed",
G_CALLBACK (bus_message_state_change_cb),
video_texture,
0);
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gst_object_unref (GST_OBJECT (bus));
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return;
}
ClutterActor*
clutter_video_texture_new (void)
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{
ClutterVideoTexture *video_texture;
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video_texture = g_object_new (CLUTTER_TYPE_VIDEO_TEXTURE,
"tiled", FALSE,
"pixel-format", GL_RGB,
NULL);
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return CLUTTER_ACTOR(video_texture);
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}