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gstreamer/subprojects/gst-editing-services/ges/ges-pipeline.c

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/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:gespipeline
* @title: GESPipeline
* @short_description: Convenience GstPipeline for editing.
* @symbols:
* - ges_play_sink_convert_frame
*
* A #GESPipeline can take an audio-video #GESTimeline and conveniently
* link its #GESTrack-s to an internal #playsink element, for
* preview/playback, and an internal #encodebin element, for rendering.
* You can switch between these modes using ges_pipeline_set_mode().
*
* You can choose the specific audio and video sinks used for previewing
* the timeline by setting the #GESPipeline:audio-sink and
* #GESPipeline:video-sink properties.
*
* You can set the encoding and save location used in rendering by calling
* ges_pipeline_set_render_settings().
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/videooverlay.h>
#include <stdio.h>
#include "ges-internal.h"
#include "ges-pipeline.h"
#include "ges-screenshot.h"
#include "ges-audio-track.h"
#include "ges-video-track.h"
GST_DEBUG_CATEGORY_STATIC (ges_pipeline_debug);
#undef GST_CAT_DEFAULT
#define GST_CAT_DEFAULT ges_pipeline_debug
#define DEFAULT_TIMELINE_MODE GES_PIPELINE_MODE_PREVIEW
#define IN_RENDERING_MODE(timeline) ((timeline->priv->mode) & (GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER))
#define CHECK_THREAD(pipeline) g_assert(pipeline->priv->valid_thread == g_thread_self())
/* Structure corresponding to a timeline - sink link */
typedef struct
{
GESTrack *track;
GstElement *tee;
GstPad *srcpad; /* Timeline source pad */
GstPad *playsinkpad;
GstPad *encodebinpad;
} OutputChain;
struct _GESPipelinePrivate
{
GESTimeline *timeline;
GstElement *playsink;
GstElement *encodebin;
/* Note : urisink is only created when a URI has been provided */
GstElement *urisink;
GESPipelineFlags mode;
GMutex dyn_mutex;
GList *chains;
GList *not_rendered_tracks;
GstEncodingProfile *profile;
GThread *valid_thread;
};
enum
{
PROP_0,
PROP_AUDIO_SINK,
PROP_VIDEO_SINK,
PROP_TIMELINE,
PROP_MODE,
PROP_AUDIO_FILTER,
PROP_VIDEO_FILTER,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
static GstStateChangeReturn ges_pipeline_change_state (GstElement *
element, GstStateChange transition);
static OutputChain *get_output_chain_for_track (GESPipeline * self,
GESTrack * track);
static OutputChain *new_output_chain_for_track (GESPipeline * self,
GESTrack * track);
static void _link_track (GESPipeline * self, GESTrack * track);
static void _unlink_track (GESPipeline * self, GESTrack * track);
/****************************************************
* Video Overlay vmethods implementation *
****************************************************/
static void
_overlay_expose (GstVideoOverlay * overlay)
{
GESPipeline *pipeline = GES_PIPELINE (overlay);
gst_video_overlay_expose (GST_VIDEO_OVERLAY (pipeline->priv->playsink));
}
static void
_overlay_handle_events (GstVideoOverlay * overlay, gboolean handle_events)
{
GESPipeline *pipeline = GES_PIPELINE (overlay);
gst_video_overlay_handle_events (GST_VIDEO_OVERLAY (pipeline->priv->playsink),
handle_events);
}
static void
_overlay_set_render_rectangle (GstVideoOverlay * overlay, gint x,
gint y, gint width, gint height)
{
GESPipeline *pipeline = GES_PIPELINE (overlay);
gst_video_overlay_set_render_rectangle (GST_VIDEO_OVERLAY (pipeline->priv->
playsink), x, y, width, height);
}
static void
_overlay_set_window_handle (GstVideoOverlay * overlay, guintptr handle)
{
GESPipeline *pipeline = GES_PIPELINE (overlay);
gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (pipeline->
priv->playsink), handle);
}
static void
video_overlay_init (gpointer g_iface, gpointer g_iface_data)
{
GstVideoOverlayInterface *iface = (GstVideoOverlayInterface *) g_iface;
iface->expose = _overlay_expose;
iface->handle_events = _overlay_handle_events;
iface->set_render_rectangle = _overlay_set_render_rectangle;
iface->set_window_handle = _overlay_set_window_handle;
}
G_DEFINE_TYPE_WITH_CODE (GESPipeline, ges_pipeline,
GST_TYPE_PIPELINE, G_ADD_PRIVATE (GESPipeline)
G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY, video_overlay_init));
static void
ges_pipeline_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GESPipeline *self = GES_PIPELINE (object);
switch (property_id) {
case PROP_AUDIO_SINK:
g_object_get_property (G_OBJECT (self->priv->playsink), "audio-sink",
value);
break;
case PROP_VIDEO_SINK:
g_object_get_property (G_OBJECT (self->priv->playsink), "video-sink",
value);
break;
case PROP_TIMELINE:
g_value_set_object (value, self->priv->timeline);
break;
case PROP_MODE:
g_value_set_flags (value, self->priv->mode);
break;
case PROP_AUDIO_FILTER:
g_object_get_property (G_OBJECT (self->priv->playsink), "audio-filter",
value);
break;
case PROP_VIDEO_FILTER:
g_object_get_property (G_OBJECT (self->priv->playsink), "video-filter",
value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_pipeline_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GESPipeline *self = GES_PIPELINE (object);
switch (property_id) {
case PROP_AUDIO_SINK:
g_object_set_property (G_OBJECT (self->priv->playsink), "audio-sink",
value);
break;
case PROP_VIDEO_SINK:
g_object_set_property (G_OBJECT (self->priv->playsink), "video-sink",
value);
break;
case PROP_TIMELINE:
ges_pipeline_set_timeline (GES_PIPELINE (object),
g_value_get_object (value));
break;
case PROP_MODE:
ges_pipeline_set_mode (GES_PIPELINE (object), g_value_get_flags (value));
break;
case PROP_AUDIO_FILTER:
g_object_set (self->priv->playsink, "audio-filter",
GST_ELEMENT (g_value_get_object (value)), NULL);
break;
case PROP_VIDEO_FILTER:
g_object_set (self->priv->playsink, "video-filter",
GST_ELEMENT (g_value_get_object (value)), NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
_timeline_track_added_cb (GESTimeline * timeline, GESTrack * track,
GESPipeline * pipeline)
{
track_disable_last_gap (track,
!!(pipeline->priv->mode & (GES_PIPELINE_MODE_RENDER |
GES_PIPELINE_MODE_SMART_RENDER)));
_link_track (pipeline, track);
}
static void
_timeline_track_removed_cb (GESTimeline * timeline, GESTrack * track,
GESPipeline * pipeline)
{
_unlink_track (pipeline, track);
}
static void
ges_pipeline_constructed (GObject * object)
{
GESPipeline *self = GES_PIPELINE (object);
ges_pipeline_set_mode (self, DEFAULT_TIMELINE_MODE);
((GObjectClass *) ges_pipeline_parent_class)->constructed (object);
}
static void
ges_pipeline_dispose (GObject * object)
{
GESPipeline *self = GES_PIPELINE (object);
if (self->priv->playsink) {
if (self->priv->mode & (GES_PIPELINE_MODE_PREVIEW))
gst_bin_remove (GST_BIN (object), self->priv->playsink);
else
gst_object_unref (self->priv->playsink);
self->priv->playsink = NULL;
}
if (self->priv->encodebin) {
if (self->priv->mode & (GES_PIPELINE_MODE_RENDER |
GES_PIPELINE_MODE_SMART_RENDER))
gst_bin_remove (GST_BIN (object), self->priv->encodebin);
else
gst_object_unref (self->priv->encodebin);
self->priv->encodebin = NULL;
}
if (self->priv->profile) {
gst_encoding_profile_unref (self->priv->profile);
self->priv->profile = NULL;
}
if (self->priv->timeline) {
g_signal_handlers_disconnect_by_func (self->priv->timeline,
_timeline_track_added_cb, self);
g_signal_handlers_disconnect_by_func (self->priv->timeline,
_timeline_track_removed_cb, self);
gst_element_set_state (GST_ELEMENT (self->priv->timeline), GST_STATE_NULL);
}
G_OBJECT_CLASS (ges_pipeline_parent_class)->dispose (object);
}
static void
ges_pipeline_class_init (GESPipelineClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (ges_pipeline_debug, "gespipeline",
GST_DEBUG_FG_YELLOW, "ges pipeline");
object_class->constructed = ges_pipeline_constructed;
object_class->dispose = ges_pipeline_dispose;
object_class->get_property = ges_pipeline_get_property;
object_class->set_property = ges_pipeline_set_property;
/**
* GESPipeline:audio-sink:
*
* The audio sink used for preview. This exposes the
* #playsink:audio-sink property of the internal #playsink.
*/
properties[PROP_AUDIO_SINK] = g_param_spec_object ("audio-sink", "Audio Sink",
"Audio sink for the preview.",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GESPipeline:video-sink:
*
* The video sink used for preview. This exposes the
* #playsink:video-sink property of the internal #playsink.
*/
properties[PROP_VIDEO_SINK] = g_param_spec_object ("video-sink", "Video Sink",
"Video sink for the preview.",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GESPipeline:timeline:
*
* The timeline used by this pipeline, whose content it will play and
* render, or %NULL if the pipeline does not yet have a timeline.
*
* Note that after you set the timeline for the first time, subsequent
* calls to change the timeline will fail.
*/
properties[PROP_TIMELINE] = g_param_spec_object ("timeline", "Timeline",
"The timeline to use in this pipeline.",
GES_TYPE_TIMELINE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GESPipeline:mode:
*
* The pipeline's mode. In preview mode (for audio or video, or both)
* the pipeline can display the timeline's content to an end user. In
* rendering mode the pipeline can encode the timeline's content and
* save it to a file.
*/
properties[PROP_MODE] = g_param_spec_flags ("mode", "Mode",
"The pipeline's mode.",
GES_TYPE_PIPELINE_FLAGS, DEFAULT_TIMELINE_MODE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GESPipeline:audio-filter:
*
* The audio filter(s) to apply during playback in preview mode,
* immediately before the #GESPipeline:audio-sink. This exposes the
* #playsink:audio-filter property of the internal #playsink.
*
* Since: 1.6.0
*/
properties[PROP_AUDIO_FILTER] =
g_param_spec_object ("audio-filter", "Audio filter",
"the audio filter(s) to apply, if possible", GST_TYPE_ELEMENT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GESPipeline:video-filter:
*
* The video filter(s) to apply during playback in preview mode,
* immediately before the #GESPipeline:video-sink. This exposes the
* #playsink:video-filter property of the internal #playsink.
*
* Since: 1.6.0
*/
properties[PROP_VIDEO_FILTER] =
g_param_spec_object ("video-filter", "Video filter",
"the Video filter(s) to apply, if possible", GST_TYPE_ELEMENT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, PROP_LAST, properties);
element_class->change_state = GST_DEBUG_FUNCPTR (ges_pipeline_change_state);
/* TODO : Add state_change handlers
* Don't change state if we don't have a timeline */
}
static void
ges_pipeline_init (GESPipeline * self)
{
GST_INFO_OBJECT (self, "Creating new 'playsink'");
self->priv = ges_pipeline_get_instance_private (self);
self->priv->valid_thread = g_thread_self ();
self->priv->playsink =
gst_element_factory_make ("playsink", "internal-sinks");
self->priv->encodebin =
gst_element_factory_make ("encodebin2", "internal-encodebin");
g_object_set (self->priv->encodebin, "avoid-reencoding", TRUE, NULL);
if (G_UNLIKELY (self->priv->playsink == NULL))
goto no_playsink;
if (G_UNLIKELY (self->priv->encodebin == NULL))
goto no_encodebin;
return;
no_playsink:
{
GST_ERROR_OBJECT (self, "Can't create playsink instance !");
return;
}
no_encodebin:
{
GST_ERROR_OBJECT (self, "Can't create encodebin instance !");
return;
}
}
/**
* ges_pipeline_new:
*
* Creates a new pipeline.
*
* Returns: (transfer floating): The newly created pipeline.
*/
GESPipeline *
ges_pipeline_new (void)
{
return GES_PIPELINE (gst_element_factory_make ("gespipeline", NULL));
}
#define TRACK_COMPATIBLE_PROFILE(tracktype, profile) \
( (GST_IS_ENCODING_AUDIO_PROFILE (profile) && (tracktype) == GES_TRACK_TYPE_AUDIO) || \
(GST_IS_ENCODING_VIDEO_PROFILE (profile) && (tracktype) == GES_TRACK_TYPE_VIDEO))
static gboolean
_track_is_compatible_with_profile (GESPipeline * self, GESTrack * track,
GstEncodingProfile * prof)
{
if (TRACK_COMPATIBLE_PROFILE (track->type, prof))
return TRUE;
return FALSE;
}
static gboolean
ges_pipeline_update_caps (GESPipeline * self)
{
GList *ltrack, *tracks, *lstream;
if (!self->priv->profile)
return TRUE;
GST_DEBUG ("Updating track caps");
tracks = ges_timeline_get_tracks (self->priv->timeline);
/* Take each stream of the encoding profile and find a matching
* track to set the caps on */
for (ltrack = tracks; ltrack; ltrack = ltrack->next) {
GESTrack *track = (GESTrack *) ltrack->data;
GList *allstreams;
if (!GST_IS_ENCODING_CONTAINER_PROFILE (self->priv->profile)) {
if (_track_is_compatible_with_profile (self, track, self->priv->profile)) {
gst_object_unref (track);
goto done;
} else {
gst_object_unref (track);
continue;
}
}
allstreams = (GList *)
gst_encoding_container_profile_get_profiles (
(GstEncodingContainerProfile *) self->priv->profile);
/* Find a matching stream setting */
for (lstream = allstreams; lstream; lstream = lstream->next) {
GstEncodingProfile *prof = (GstEncodingProfile *) lstream->data;
if (_track_is_compatible_with_profile (self, track, prof))
break;
}
gst_object_unref (track);
}
done:
if (tracks)
g_list_free (tracks);
GST_DEBUG ("Done updating caps");
return TRUE;
}
static void
_link_tracks (GESPipeline * pipeline)
{
GList *tmp;
GST_DEBUG_OBJECT (pipeline, "Linking %d tracks",
g_list_length (pipeline->priv->timeline->tracks));
if (!pipeline->priv->timeline) {
GST_INFO_OBJECT (pipeline, "Not timeline set yet, doing nothing");
return;
}
for (tmp = pipeline->priv->timeline->tracks; tmp; tmp = tmp->next)
_link_track (pipeline, tmp->data);
if (IN_RENDERING_MODE (pipeline)) {
GString *unlinked_issues = NULL;
GstIterator *pads;
gboolean done = FALSE;
GValue paditem = { 0, };
pads = gst_element_iterate_sink_pads (pipeline->priv->encodebin);
while (!done) {
switch (gst_iterator_next (pads, &paditem)) {
case GST_ITERATOR_OK:
{
GstPad *testpad = g_value_get_object (&paditem);
if (!gst_pad_is_linked (testpad)) {
GstCaps *sinkcaps = gst_pad_query_caps (testpad, NULL);
gchar *caps_string = gst_caps_to_string (sinkcaps);
gchar *path_string =
gst_object_get_path_string (GST_OBJECT (testpad));
gst_caps_unref (sinkcaps);
if (!unlinked_issues)
unlinked_issues =
g_string_new ("Following encodebin pads are not linked:\n");
g_string_append_printf (unlinked_issues, " - %s: %s", path_string,
caps_string);
g_free (caps_string);
g_free (path_string);
}
g_value_reset (&paditem);
}
break;
case GST_ITERATOR_DONE:
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (pads);
break;
}
}
g_value_reset (&paditem);
gst_iterator_free (pads);
if (unlinked_issues) {
GST_ELEMENT_ERROR (pipeline, STREAM, FAILED, (NULL), ("%s",
unlinked_issues->str));
g_string_free (unlinked_issues, TRUE);
}
}
}
static void
_unlink_tracks (GESPipeline * pipeline)
{
GList *tmp;
GST_DEBUG_OBJECT (pipeline, "Disconnecting all tracks");
if (!pipeline->priv->timeline) {
GST_INFO_OBJECT (pipeline, "Not timeline set yet, doing nothing");
return;
}
for (tmp = pipeline->priv->timeline->tracks; tmp; tmp = tmp->next)
_unlink_track (pipeline, tmp->data);
}
static GstStateChangeReturn
ges_pipeline_change_state (GstElement * element, GstStateChange transition)
{
GESPipeline *self;
GstStateChangeReturn ret;
self = GES_PIPELINE (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (G_UNLIKELY (self->priv->timeline == NULL)) {
GST_ERROR_OBJECT (element,
"No GESTimeline set on the pipeline, cannot play !");
ret = GST_STATE_CHANGE_FAILURE;
goto done;
}
if (IN_RENDERING_MODE (self)) {
GST_DEBUG ("rendering => Updating pipeline caps");
/* Set caps on all tracks according to profile if present */
if (!ges_pipeline_update_caps (self)) {
GST_ERROR_OBJECT (element, "Error setting the caps for rendering");
ret = GST_STATE_CHANGE_FAILURE;
goto done;
}
}
_link_tracks (self);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
GList *tmp;
for (tmp = self->priv->not_rendered_tracks; tmp; tmp = tmp->next)
gst_element_set_locked_state (tmp->data, FALSE);
break;
}
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
{
GstElement *queue = gst_bin_get_by_name (GST_BIN (self->priv->playsink),
"vqueue");
if (queue) {
GST_INFO_OBJECT (self, "Setting playsink video queue max-size-time to"
" 2 seconds.");
g_object_set (G_OBJECT (queue), "max-size-buffers", 0,
"max-size-bytes", 0, "max-size-time", (gint64) 2 * GST_SECOND,
NULL);
gst_object_unref (queue);
}
break;
}
default:
break;
}
ret =
GST_ELEMENT_CLASS (ges_pipeline_parent_class)->change_state
(element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
case GST_STATE_CHANGE_READY_TO_NULL:
case GST_STATE_CHANGE_NULL_TO_NULL:
_unlink_tracks (self);
break;
default:
break;
}
done:
return ret;
}
static OutputChain *
new_output_chain_for_track (GESPipeline * self, GESTrack * track)
{
OutputChain *chain;
chain = g_new0 (OutputChain, 1);
chain->track = track;
return chain;
}
static OutputChain *
get_output_chain_for_track (GESPipeline * self, GESTrack * track)
{
GList *tmp;
for (tmp = self->priv->chains; tmp; tmp = tmp->next) {
OutputChain *chain = (OutputChain *) tmp->data;
if (chain->track == track)
return chain;
}
return NULL;
}
/* Fetches a compatible pad on the target element which isn't already
* linked */
static GstPad *
get_compatible_unlinked_pad (GstElement * element, GESTrack * track)
{
GstPad *res = NULL;
GstIterator *pads;
gboolean done = FALSE;
const GstCaps *srccaps;
GValue paditem = { 0, };
if (G_UNLIKELY (track == NULL))
goto no_track;
GST_DEBUG_OBJECT (element, " track %" GST_PTR_FORMAT, track);
pads = gst_element_iterate_sink_pads (element);
srccaps = ges_track_get_caps (track);
GST_DEBUG_OBJECT (track, "srccaps %" GST_PTR_FORMAT, srccaps);
while (!done) {
switch (gst_iterator_next (pads, &paditem)) {
case GST_ITERATOR_OK:
{
GstPad *testpad = g_value_get_object (&paditem);
if (!gst_pad_is_linked (testpad)) {
GstCaps *sinkcaps = gst_pad_query_caps (testpad, NULL);
GST_DEBUG_OBJECT (track, "sinkccaps %" GST_PTR_FORMAT, sinkcaps);
if (gst_caps_can_intersect (srccaps, sinkcaps)) {
res = gst_object_ref (testpad);
done = TRUE;
}
gst_caps_unref (sinkcaps);
}
g_value_reset (&paditem);
}
break;
case GST_ITERATOR_DONE:
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (pads);
break;
}
}
g_value_reset (&paditem);
gst_iterator_free (pads);
return res;
no_track:
{
GST_ERROR ("No track to check against");
return NULL;
}
}
static void
_link_track (GESPipeline * self, GESTrack * track)
{
GstPad *pad;
OutputChain *chain;
GstPad *sinkpad;
GstCaps *caps;
GstPadLinkReturn lret;
gboolean reconfigured = FALSE;
gboolean ignore;
pad = ges_timeline_get_pad_for_track (self->priv->timeline, track);
if (G_UNLIKELY (!pad)) {
GST_ELEMENT_ERROR (self, STREAM, FAILED, (NULL),
("Trying to link %" GST_PTR_FORMAT
" but no pad is exposed for it.", track));
return;
}
caps = gst_pad_query_caps (pad, NULL);
GST_DEBUG_OBJECT (self, "new pad %s:%s , caps:%" GST_PTR_FORMAT,
GST_DEBUG_PAD_NAME (pad), caps);
gst_caps_unref (caps);
/* FIXME: provide a way for the user to select which audio, video or
* text track to use in preview mode when a timeline has multiple audio,
* video or text tracks. Also provide a way to switch between these. */
/* Don't connect track if it's not going to be used */
ignore = TRUE;
/* only support audio and video. Technically, preview mode could support
* text quite easily, but this isn't yet the case for rendering using
* encodebin */
if (track->type == GES_TRACK_TYPE_AUDIO ||
track->type == GES_TRACK_TYPE_VIDEO) {
if (IN_RENDERING_MODE (self))
ignore = FALSE;
else if (track->type == GES_TRACK_TYPE_VIDEO &&
self->priv->mode & GES_PIPELINE_MODE_PREVIEW_VIDEO)
ignore = FALSE;
else if (track->type == GES_TRACK_TYPE_AUDIO &&
self->priv->mode & GES_PIPELINE_MODE_PREVIEW_AUDIO)
ignore = FALSE;
}
if (ignore) {
gst_object_unref (pad);
GST_DEBUG_OBJECT (self, "Ignoring track (type %u). Not linking",
track->type);
return;
}
/* Get an existing chain or create it */
if (!(chain = get_output_chain_for_track (self, track)))
chain = new_output_chain_for_track (self, track);
if (chain->tee) {
gst_object_unref (pad);
GST_INFO_OBJECT (self, "Chain is already built (%" GST_PTR_FORMAT ")",
chain->encodebinpad ? chain->encodebinpad : chain->playsinkpad);
return;
}
chain->srcpad = pad;
/* Adding tee */
chain->tee = gst_element_factory_make ("tee", NULL);
gst_bin_add (GST_BIN_CAST (self), chain->tee);
gst_element_sync_state_with_parent (chain->tee);
/* Linking pad to tee */
sinkpad = gst_element_get_static_pad (chain->tee, "sink");
lret = gst_pad_link (pad, sinkpad);
if (lret != GST_PAD_LINK_OK) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
(NULL), ("Could not link the tee (%s)", gst_pad_link_get_name (lret)));
goto error;
}
gst_object_unref (sinkpad);
/* Connect playsink */
if (self->priv->mode & GES_PIPELINE_MODE_PREVIEW) {
const gchar *sinkpad_name;
GstPad *tmppad;
GST_DEBUG_OBJECT (self, "Connecting to playsink");
switch (track->type) {
case GES_TRACK_TYPE_VIDEO:
sinkpad_name = "video_sink";
break;
case GES_TRACK_TYPE_AUDIO:
sinkpad_name = "audio_sink";
break;
case GES_TRACK_TYPE_TEXT:
sinkpad_name = "text_sink";
break;
default:
GST_WARNING_OBJECT (self, "Can't handle tracks of type %d yet",
track->type);
goto error;
}
/* Request a sinkpad from playsink */
if (G_UNLIKELY (!(sinkpad =
gst_element_request_pad_simple (self->priv->playsink,
sinkpad_name)))) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
(NULL), ("Could not get a pad from playsink for %s", sinkpad_name));
goto error;
}
tmppad = gst_element_request_pad_simple (chain->tee, "src_%u");
lret = gst_pad_link_full (tmppad, sinkpad, GST_PAD_LINK_CHECK_NOTHING);
if (G_UNLIKELY (lret != GST_PAD_LINK_OK)) {
gst_object_unref (tmppad);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
(NULL),
("Could not link %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT " (%s)",
tmppad, sinkpad, gst_pad_link_get_name (lret)));
goto error;
}
gst_object_unref (tmppad);
GST_DEBUG ("Reconfiguring playsink");
/* reconfigure playsink */
g_signal_emit_by_name (self->priv->playsink, "reconfigure", &reconfigured);
GST_DEBUG ("'reconfigure' returned %d", reconfigured);
/* We still hold a reference on the sinkpad */
chain->playsinkpad = sinkpad;
}
/* Connect to encodebin */
if (IN_RENDERING_MODE (self)) {
GstPad *tmppad;
GST_DEBUG_OBJECT (self, "Connecting to encodebin");
if (!chain->encodebinpad) {
/* Check for unused static pads */
sinkpad = get_compatible_unlinked_pad (self->priv->encodebin, track);
if (sinkpad == NULL) {
GstCaps *caps = gst_pad_query_caps (pad, NULL);
/* If no compatible static pad is available, request a pad */
g_signal_emit_by_name (self->priv->encodebin, "request-pad", caps,
&sinkpad);
if (G_UNLIKELY (sinkpad == NULL)) {
gst_element_set_locked_state (GST_ELEMENT (track), TRUE);
self->priv->not_rendered_tracks =
g_list_append (self->priv->not_rendered_tracks, track);
GST_INFO_OBJECT (self,
"Couldn't get a pad from encodebin for: %" GST_PTR_FORMAT, caps);
gst_caps_unref (caps);
goto error;
}
gst_caps_unref (caps);
}
chain->encodebinpad = sinkpad;
GST_INFO_OBJECT (track, "Linked to %" GST_PTR_FORMAT, sinkpad);
}
tmppad = gst_element_request_pad_simple (chain->tee, "src_%u");
if (G_UNLIKELY (gst_pad_link_full (tmppad, chain->encodebinpad,
GST_PAD_LINK_CHECK_NOTHING) != GST_PAD_LINK_OK)) {
GST_ERROR_OBJECT (self, "Couldn't link track pad to encodebin");
goto error;
}
gst_object_unref (tmppad);
}
/* If chain wasn't already present, insert it in list */
if (!get_output_chain_for_track (self, track))
self->priv->chains = g_list_append (self->priv->chains, chain);
GST_DEBUG ("done");
gst_object_unref (pad);
return;
error:
{
gst_object_unref (pad);
if (chain->tee) {
gst_element_set_state (chain->tee, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (self), chain->tee);
}
if (sinkpad)
gst_object_unref (sinkpad);
g_free (chain);
}
}
static void
_unlink_track (GESPipeline * self, GESTrack * track)
{
OutputChain *chain;
GST_DEBUG_OBJECT (self, "Unlinking removed %" GST_PTR_FORMAT, track);
if (G_UNLIKELY (!(chain = get_output_chain_for_track (self, track)))) {
GST_DEBUG_OBJECT (self, "Track wasn't used");
return;
}
/* Unlink encodebin */
if (chain->encodebinpad) {
GstPad *peer = gst_pad_get_peer (chain->encodebinpad);
gst_pad_unlink (peer, chain->encodebinpad);
gst_object_unref (peer);
gst_element_release_request_pad (self->priv->encodebin,
chain->encodebinpad);
gst_object_unref (chain->encodebinpad);
}
/* Unlink playsink */
if (chain->playsinkpad) {
GstPad *peer = gst_pad_get_peer (chain->playsinkpad);
gst_pad_unlink (peer, chain->playsinkpad);
gst_object_unref (peer);
gst_element_release_request_pad (self->priv->playsink, chain->playsinkpad);
gst_object_unref (chain->playsinkpad);
}
gst_element_set_state (chain->tee, GST_STATE_NULL);
gst_bin_remove (GST_BIN (self), chain->tee);
self->priv->chains = g_list_remove (self->priv->chains, chain);
g_free (chain);
GST_DEBUG ("done");
}
/**
* ges_pipeline_set_timeline:
* @pipeline: A #GESPipeline
* @timeline: (transfer floating): The timeline to set for @pipeline
*
* Takes the given timeline and sets it as the #GESPipeline:timeline for
* the pipeline.
*
* Note that you should only call this method once on a given pipeline
* because a pipeline can not have its #GESPipeline:timeline changed after
* it has been set.
*
* Returns: %TRUE if @timeline was successfully given to @pipeline.
*/
/* FIXME: allow us to set a new timeline and a NULL timeline */
/* FIXME 2.0: since the method can fail, (transfer none) would be more
* appropriate for the timeline argument (currently, it is only
* transferred if the method is successful, which makes the memory
* transfer mixed!) */
gboolean
ges_pipeline_set_timeline (GESPipeline * pipeline, GESTimeline * timeline)
{
g_return_val_if_fail (GES_IS_PIPELINE (pipeline), FALSE);
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
g_return_val_if_fail (pipeline->priv->timeline == NULL, FALSE);
CHECK_THREAD (pipeline);
GST_DEBUG ("pipeline:%p, timeline:%p", timeline, pipeline);
if (G_UNLIKELY (!gst_bin_add (GST_BIN_CAST (pipeline),
GST_ELEMENT (timeline)))) {
return FALSE;
}
pipeline->priv->timeline = timeline;
g_signal_connect (timeline, "track-added",
G_CALLBACK (_timeline_track_added_cb), pipeline);
g_signal_connect (timeline, "track-removed",
G_CALLBACK (_timeline_track_removed_cb), pipeline);
/* FIXME Check if we should rollback if we can't sync state */
gst_element_sync_state_with_parent (GST_ELEMENT (timeline));
return TRUE;
}
/**
* ges_pipeline_set_render_settings:
* @pipeline: A #GESPipeline
* @output_uri: The URI to save the #GESPipeline:timeline rendering
* result to
* @profile: The encoding to use for rendering the #GESPipeline:timeline
*
* Specifies encoding setting to be used by the pipeline to render its
* #GESPipeline:timeline, and where the result should be written to.
*
* This method **must** be called before setting the pipeline mode to
* #GES_PIPELINE_MODE_RENDER.
*
* Returns: %TRUE if the settings were successfully set on @pipeline.
*/
gboolean
ges_pipeline_set_render_settings (GESPipeline * pipeline,
const gchar * output_uri, GstEncodingProfile * profile)
{
GError *err = NULL;
GstEncodingProfile *set_profile;
guint n_videotracks = 0, n_audiotracks = 0;
g_return_val_if_fail (GES_IS_PIPELINE (pipeline), FALSE);
CHECK_THREAD (pipeline);
/* FIXME Properly handle multi track, for now GESPipeline
* only handles single track per type, so we should just set the
* presence to 1.
*/
if (GST_IS_ENCODING_CONTAINER_PROFILE (profile)) {
const GList *tmpprofiles =
gst_encoding_container_profile_get_profiles
(GST_ENCODING_CONTAINER_PROFILE (profile));
GList *tmptrack, *tracks =
ges_timeline_get_tracks (pipeline->priv->timeline);
for (tmptrack = tracks; tmptrack; tmptrack = tmptrack->next) {
if (GES_IS_AUDIO_TRACK (tmptrack->data))
n_audiotracks++;
else if (GES_IS_VIDEO_TRACK (tmptrack->data))
n_videotracks++;
}
g_list_free_full (tracks, gst_object_unref);
for (; tmpprofiles; tmpprofiles = tmpprofiles->next) {
if (!gst_encoding_profile_is_enabled (tmpprofiles->data))
continue;
if (GST_IS_ENCODING_AUDIO_PROFILE (tmpprofiles->data)) {
if (n_audiotracks) {
n_audiotracks--;
} else {
GST_INFO_OBJECT (pipeline, "No audio track but got an audio profile, "
" make it optional: %" GST_PTR_FORMAT, tmpprofiles);
gst_encoding_profile_set_presence (tmpprofiles->data, 0);
continue;
}
} else if (GST_IS_ENCODING_VIDEO_PROFILE (tmpprofiles->data)) {
if (n_videotracks) {
n_videotracks--;
} else {
GST_INFO_OBJECT (pipeline, "No video track but got a video profile, "
" make it optional: %" GST_PTR_FORMAT, tmpprofiles);
gst_encoding_profile_set_presence (tmpprofiles->data, 0);
continue;
}
} else {
continue;
}
GST_DEBUG_OBJECT (pipeline, "Setting presence to 1!");
gst_encoding_profile_set_single_segment (tmpprofiles->data, TRUE);
if (gst_encoding_profile_get_presence (tmpprofiles->data) == 0)
gst_encoding_profile_set_presence (tmpprofiles->data, 1);
gst_encoding_profile_set_allow_dynamic_output (tmpprofiles->data, FALSE);
}
}
/* Clear previous URI sink if it existed */
if (pipeline->priv->urisink) {
GstObject *sink_parent =
gst_object_get_parent (GST_OBJECT (pipeline->priv->urisink));
if (sink_parent == GST_OBJECT (pipeline))
gst_bin_remove (GST_BIN (pipeline), pipeline->priv->urisink);
pipeline->priv->urisink = NULL;
gst_clear_object (&sink_parent);
}
pipeline->priv->urisink =
gst_element_make_from_uri (GST_URI_SINK, output_uri, NULL, &err);
if (G_UNLIKELY (pipeline->priv->urisink == NULL)) {
GST_ERROR_OBJECT (pipeline, "Couldn't not create sink for URI %s: '%s'",
output_uri, ((err
&& err->message) ? err->message : "failed to create element"));
g_clear_error (&err);
return FALSE;
}
if (pipeline->priv->profile)
gst_encoding_profile_unref (pipeline->priv->profile);
g_object_set (pipeline->priv->encodebin, "avoid-reencoding",
!(!(pipeline->priv->mode & GES_PIPELINE_MODE_SMART_RENDER)), NULL);
g_object_set (pipeline->priv->encodebin, "profile", profile, NULL);
g_object_get (pipeline->priv->encodebin, "profile", &set_profile, NULL);
if (set_profile == NULL) {
GST_ERROR_OBJECT (pipeline, "Profile %" GST_PTR_FORMAT " could no be set",
profile);
return FALSE;
}
/* We got a reference when getting back the profile */
pipeline->priv->profile = profile;
return TRUE;
}
/**
* ges_pipeline_get_mode:
* @pipeline: A #GESPipeline
*
* Gets the #GESPipeline:mode of the pipeline.
*
* Returns: The current mode of @pipeline.
**/
GESPipelineFlags
ges_pipeline_get_mode (GESPipeline * pipeline)
{
return pipeline->priv->mode;
}
/**
* ges_pipeline_set_mode:
* @pipeline: A #GESPipeline
* @mode: The mode to set for @pipeline
*
* Sets the #GESPipeline:mode of the pipeline.
*
* Note that the pipeline will be set to #GST_STATE_NULL during this call to
* perform the necessary changes. You will need to set the state again yourself
* after calling this.
*
* > **NOTE**: [Rendering settings](ges_pipeline_set_render_settings) need to be
* > set before setting @mode to #GES_PIPELINE_MODE_RENDER or
* > #GES_PIPELINE_MODE_SMART_RENDER, the call to this method will fail
* > otherwise.
*
* Returns: %TRUE if the mode of @pipeline was successfully set to @mode.
**/
gboolean
ges_pipeline_set_mode (GESPipeline * pipeline, GESPipelineFlags mode)
{
GList *tmp;
g_return_val_if_fail (GES_IS_PIPELINE (pipeline), FALSE);
CHECK_THREAD (pipeline);
GST_DEBUG_OBJECT (pipeline, "current mode : %d, mode : %d",
pipeline->priv->mode, mode);
/* fast-path, nothing to change */
if (mode == pipeline->priv->mode)
return TRUE;
/* FIXME: It would be nice if we are only (de)activating preview
* modes to not set the whole pipeline to NULL, but instead just
* do the proper (un)linking to playsink. */
/* Switch pipeline to NULL since we're changing the configuration */
gst_element_set_state (GST_ELEMENT_CAST (pipeline), GST_STATE_NULL);
if (pipeline->priv->timeline) {
gboolean disabled =
!!(mode & (GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER));
for (tmp = pipeline->priv->timeline->tracks; tmp; tmp = tmp->next)
track_disable_last_gap (GES_TRACK (tmp->data), disabled);
}
/* remove no-longer needed components */
if (pipeline->priv->mode & GES_PIPELINE_MODE_PREVIEW &&
!(mode & GES_PIPELINE_MODE_PREVIEW)) {
/* Disable playsink */
GST_DEBUG ("Disabling playsink");
gst_object_ref (pipeline->priv->playsink);
gst_bin_remove (GST_BIN_CAST (pipeline), pipeline->priv->playsink);
}
if ((pipeline->priv->mode &
(GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER)) &&
!(mode & (GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER))) {
/* Disable render bin */
GST_DEBUG ("Disabling rendering bin");
ges_timeline_thaw_commit (pipeline->priv->timeline);
gst_object_ref (pipeline->priv->encodebin);
gst_object_ref (pipeline->priv->urisink);
gst_bin_remove_many (GST_BIN_CAST (pipeline),
pipeline->priv->encodebin, pipeline->priv->urisink, NULL);
}
/* Add new elements */
if (!(pipeline->priv->mode & GES_PIPELINE_MODE_PREVIEW) &&
(mode & GES_PIPELINE_MODE_PREVIEW)) {
/* Add playsink */
GST_DEBUG ("Adding playsink");
if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->priv->playsink)) {
GST_ERROR_OBJECT (pipeline, "Couldn't add playsink");
return FALSE;
}
}
if (!(pipeline->priv->mode &
(GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER)) &&
(mode & (GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER))) {
/* Adding render bin */
GST_DEBUG ("Adding render bin");
/* in render mode the commit needs to be locked, see #136 */
ges_timeline_freeze_commit (pipeline->priv->timeline);
if (G_UNLIKELY (pipeline->priv->urisink == NULL)) {
GST_ERROR_OBJECT (pipeline, "Output URI not set !");
return FALSE;
}
if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->priv->encodebin)) {
GST_ERROR_OBJECT (pipeline, "Couldn't add encodebin");
return FALSE;
}
/* We know that encodebin2 will add its src pads as soon as the profile is
* set, so link the sink to it if it has a pad */
if (pipeline->priv->encodebin->numsrcpads > 0) {
if (pipeline->priv->encodebin->numsrcpads > 1) {
GST_WARNING_OBJECT (pipeline,
"Encodebin has more than one srcpad, this is not supported yet");
}
if (!gst_bin_add (GST_BIN_CAST (pipeline), pipeline->priv->urisink)) {
GST_ERROR_OBJECT (pipeline, "Couldn't add URI sink");
return FALSE;
}
gst_element_link_pads_full (pipeline->priv->encodebin, "src_0",
pipeline->priv->urisink, "sink", GST_PAD_LINK_CHECK_NOTHING);
} else {
GST_INFO_OBJECT (pipeline,
"Using an muxing sink, not adding any sink element");
}
g_object_set (pipeline->priv->encodebin, "avoid-reencoding",
!(!(mode & GES_PIPELINE_MODE_SMART_RENDER)), NULL);
}
if (pipeline->priv->timeline) {
ges_timeline_set_smart_rendering (pipeline->priv->timeline,
(mode & GES_PIPELINE_MODE_SMART_RENDER) != 0);
}
/* FIXUPS */
/* FIXME
* If we are rendering, set playsink to sync=False,
* If we are NOT rendering, set playsink to sync=TRUE */
pipeline->priv->mode = mode;
return TRUE;
}
/**
* ges_pipeline_get_thumbnail:
* @self: A #GESPipeline in #GST_STATE_PLAYING or #GST_STATE_PAUSED
* @caps: (transfer none): Some caps to specifying the desired format, or
* #GST_CAPS_ANY to use the native format
*
* Gets a sample from the pipeline of the currently displayed image in
* preview, in the specified format.
*
* Note that if you use "ANY" caps for @caps, then the current format of
* the image is used. You can retrieve these caps from the returned sample
* with gst_sample_get_caps().
*
* Returns: (transfer full) (nullable): A sample of @self's current image preview in
* the format given by @caps, or %NULL if an error prevented fetching the
* sample.
*/
GstSample *
ges_pipeline_get_thumbnail (GESPipeline * self, GstCaps * caps)
{
GstElement *sink;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
CHECK_THREAD (self);
sink = self->priv->playsink;
if (!sink) {
GST_WARNING ("thumbnailing can only be done if we have a playsink");
return NULL;
}
return ges_play_sink_convert_frame (sink, caps);
}
/**
* ges_pipeline_save_thumbnail:
* @self: A #GESPipeline in %GST_STATE_PLAYING or %GST_STATE_PAUSED
* @width: The requested pixel width of the image, or -1 to use the native
* size
* @height: The requested pixel height of the image, or -1 to use the
* native size
* @format: The desired mime type (for example, "image/jpeg")
* @location: The path to save the thumbnail to
* @error: An error to be set in case something goes wrong, or %NULL to ignore
*
* Saves the currently displayed image of the pipeline in preview to the
* given location, in the specified dimensions and format.
*
* Returns: %TRUE if @self's current image preview was successfully saved
* to @location using the given @format, @height and @width.
*/
gboolean
ges_pipeline_save_thumbnail (GESPipeline * self, int width, int
height, const gchar * format, const gchar * location, GError ** error)
{
GstMapInfo map_info;
GstBuffer *b;
GstSample *sample;
GstCaps *caps;
gboolean res = TRUE;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
CHECK_THREAD (self);
caps = gst_caps_from_string (format);
if (width > 1)
gst_caps_set_simple (caps, "width", G_TYPE_INT, width, NULL);
if (height > 1)
gst_caps_set_simple (caps, "height", G_TYPE_INT, height, NULL);
if (!(sample = ges_pipeline_get_thumbnail (self, caps))) {
gst_caps_unref (caps);
return FALSE;
}
b = gst_sample_get_buffer (sample);
if (gst_buffer_map (b, &map_info, GST_MAP_READ)) {
if (!g_file_set_contents (location, (const char *) map_info.data,
map_info.size, error)) {
GST_WARNING ("Could not save thumbnail: %s",
error ? (*error)->message : "");
res = FALSE;
}
}
gst_caps_unref (caps);
gst_buffer_unmap (b, &map_info);
gst_sample_unref (sample);
return res;
}
/**
* ges_pipeline_get_thumbnail_rgb24:
* @self: A #GESPipeline in %GST_STATE_PLAYING or %GST_STATE_PAUSED
* @width: The requested pixel width of the image, or -1 to use the native
* size
* @height: The requested pixel height of the image, or -1 to use the
* native size
*
* Gets a sample from the pipeline of the currently displayed image in
* preview, in the 24-bit "RGB" format and of the desired width and
* height.
*
* See ges_pipeline_get_thumbnail().
*
* Returns: (transfer full) (nullable): A sample of @self's current image preview in
* the "RGB" format, scaled to @width and @height, or %NULL if an error
* prevented fetching the sample.
*/
GstSample *
ges_pipeline_get_thumbnail_rgb24 (GESPipeline * self, gint width, gint height)
{
GstSample *ret;
GstCaps *caps;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
CHECK_THREAD (self);
caps = gst_caps_new_simple ("video/x-raw", "format", G_TYPE_STRING,
"RGB", NULL);
if (width != -1)
gst_caps_set_simple (caps, "width", G_TYPE_INT, (gint) width, NULL);
if (height != -1)
gst_caps_set_simple (caps, "height", G_TYPE_INT, (gint) height, NULL);
ret = ges_pipeline_get_thumbnail (self, caps);
gst_caps_unref (caps);
return ret;
}
/**
* ges_pipeline_preview_get_video_sink:
* @self: A #GESPipeline
*
* Gets the #GESPipeline:video-sink of the pipeline.
*
* Returns: (transfer full) (nullable): The video sink used by @self for preview.
*/
GstElement *
ges_pipeline_preview_get_video_sink (GESPipeline * self)
{
GstElement *sink = NULL;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
CHECK_THREAD (self);
g_object_get (self->priv->playsink, "video-sink", &sink, NULL);
return sink;
};
/**
* ges_pipeline_preview_set_video_sink:
* @self: A #GESPipeline in #GST_STATE_NULL
* @sink: (transfer none) (nullable): A video sink for @self to use for preview
*
* Sets the #GESPipeline:video-sink of the pipeline.
*/
void
ges_pipeline_preview_set_video_sink (GESPipeline * self, GstElement * sink)
{
g_return_if_fail (GES_IS_PIPELINE (self));
CHECK_THREAD (self);
g_object_set (self->priv->playsink, "video-sink", sink, NULL);
};
/**
* ges_pipeline_preview_get_audio_sink:
* @self: A #GESPipeline
*
* Gets the #GESPipeline:audio-sink of the pipeline.
*
* Returns: (transfer full) (nullable): The audio sink used by @self for preview.
*/
GstElement *
ges_pipeline_preview_get_audio_sink (GESPipeline * self)
{
GstElement *sink = NULL;
g_return_val_if_fail (GES_IS_PIPELINE (self), FALSE);
CHECK_THREAD (self);
g_object_get (self->priv->playsink, "audio-sink", &sink, NULL);
return sink;
};
/**
* ges_pipeline_preview_set_audio_sink:
* @self: A #GESPipeline in #GST_STATE_NULL
* @sink: (transfer none) (nullable): A audio sink for @self to use for preview
*
* Sets the #GESPipeline:audio-sink of the pipeline.
*/
void
ges_pipeline_preview_set_audio_sink (GESPipeline * self, GstElement * sink)
{
g_return_if_fail (GES_IS_PIPELINE (self));
CHECK_THREAD (self);
g_object_set (self->priv->playsink, "audio-sink", sink, NULL);
};
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