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gstreamer/gst-libs/gst/play/playpipelines.c
Julien Moutte 5f22a7605a There was a floating doubt on the way visualization is written. We use 'z' everywhere now. Both in gst-player and lib... 
Original commit message from CVS:
There was a floating doubt on the way visualization is written. We use 'z' everywhere now. Both in gst-player and libgstplay
2003-10-06 10:29:27 +00:00

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/* GStreamer
* Copyright (C) 1999,2000,2001,2002 Erik Walthinsen <omega@cse.ogi.edu>
* 2000,2001,2002 Wim Taymans <wtay@chello.be>
* 2002 Steve Baker <steve@stevebaker.org>
* 2003 Julien Moutte <julien@moutte.net>
*
* playpipelines.c: Set up pipelines for playback
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
static gboolean
gst_play_default_set_data_src (GstPlay * play,
GstElement * datasrc, GstElement * parent)
{
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (datasrc != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (datasrc), FALSE);
if (GST_IS_ELEMENT (play->source))
{
/* we need to remove the existing data
source before creating a new one */
if (GST_IS_ELEMENT (play->autoplugger))
{
gst_element_unlink (play->autoplugger, play->source);
}
gst_bin_remove (GST_BIN (parent), play->source);
}
play->source = datasrc;
g_return_val_if_fail (play->source != NULL, FALSE);
gst_bin_add (GST_BIN (parent), play->source);
if (GST_IS_ELEMENT (play->autoplugger))
{
gst_element_link (play->autoplugger, play->source);
}
return TRUE;
}
/*
* GST_PLAY_PIPE_AUDIO
* gnomevfssrc ! spider ! volume ! osssink
*/
static gboolean
gst_play_audio_setup (GstPlay * play, GError ** error)
{
/* creating gst_bin */
play->pipeline = gst_pipeline_new ("main_pipeline");
g_return_val_if_fail (GST_IS_PIPELINE (play->pipeline), FALSE);
/* create source element */
play->source = gst_element_factory_make ("gnomevfssrc", "source");
if (!play->source)
{
gst_play_error_plugin (GST_PLAY_ERROR_GNOMEVFSSRC, error);
return FALSE;
}
/* Adding element to bin */
gst_bin_add (GST_BIN (play->pipeline), play->source);
/* create audio elements */
play->volume = gst_element_factory_make ("volume", "volume");
if (!play->volume)
{
gst_play_error_plugin (GST_PLAY_ERROR_VOLUME, error);
return FALSE;
}
/* creating fake audio_sink */
play->audio_sink = gst_element_factory_make ("fakesink", "fake_audio");
if (play->audio_sink == NULL)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
gst_bin_add_many (GST_BIN (play->pipeline), play->volume,
play->audio_sink, NULL);
gst_element_link (play->volume, play->audio_sink);
return TRUE;
}
static gboolean
gst_play_simple_set_data_src (GstPlay * play, GstElement * datasrc)
{
return gst_play_default_set_data_src (play, datasrc, play->pipeline);
}
/*
* GST_PLAY_PIPE_AUDIO_THREADED
* { gnomevfssrc ! spider ! volume ! osssink }
*/
static gboolean
gst_play_audiot_setup (GstPlay * play, GError ** error)
{
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
/* creating gst_thread */
play->pipeline = gst_thread_new ("main_pipeline");
g_return_val_if_fail (GST_IS_THREAD (play->pipeline), FALSE);
/* create source element */
play->source = gst_element_factory_make ("gnomevfssrc", "source");
if (!play->source)
{
gst_play_error_plugin (GST_PLAY_ERROR_GNOMEVFSSRC, error);
return FALSE;
}
/* Adding element to bin */
gst_bin_add (GST_BIN (play->pipeline), play->source);
/* create audio elements */
play->volume = gst_element_factory_make ("volume", "volume");
if (!play->volume)
{
gst_play_error_plugin (GST_PLAY_ERROR_VOLUME, error);
return FALSE;
}
/* creating fake audiosink */
play->audio_sink = gst_element_factory_make ("fakesink", "fake_audio");
if (play->audio_sink == NULL)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
gst_bin_add_many (GST_BIN (play->pipeline), play->volume,
play->audio_sink, NULL);
gst_element_link (play->volume, play->audio_sink);
return TRUE;
}
static gboolean
gst_play_audiot_set_audio (GstPlay * play, GstElement * audio_sink)
{
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (audio_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (audio_sink), FALSE);
if (play->audio_sink)
{
gst_element_unlink (play->volume, play->audio_sink);
gst_bin_remove (GST_BIN (play->pipeline), play->audio_sink);
}
play->audio_sink = audio_sink;
gst_bin_add (GST_BIN (play->pipeline), play->audio_sink);
gst_element_link (play->volume, play->audio_sink);
play->audio_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_AUDIO);
play->visualization_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_VIDEO);
if (play->audio_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->audio_sink_element), "eos",
G_CALLBACK (callback_audio_sink_eos), play);
}
return TRUE;
}
static gboolean
gst_play_audiot_set_auto (GstPlay * play, GstElement * autoplugger)
{
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (autoplugger != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (autoplugger), FALSE);
if (play->autoplugger)
{
/* we need to remove the existing autoplugger
before creating a new one */
gst_element_unlink (play->autoplugger, play->volume);
gst_element_unlink (play->autoplugger, play->source);
gst_bin_remove (GST_BIN (play->pipeline), play->autoplugger);
}
play->autoplugger = autoplugger;
g_return_val_if_fail (play->autoplugger != NULL, FALSE);
gst_bin_add (GST_BIN (play->pipeline), play->autoplugger);
gst_element_link (play->source, play->autoplugger);
gst_element_link (play->autoplugger, play->volume);
return TRUE;
}
/*
* GST_PLAY_PIPE_AUDIO_HYPER_THREADED
* { gnomevfssrc ! spider ! { queue ! volume ! osssink } }
*/
static gboolean
gst_play_audioht_setup (GstPlay * play, GError ** error)
{
GstElement *audio_thread, *audio_queue;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
/*
play->pipeline = gst_thread_new ("main_pipeline");
g_return_val_if_fail (GST_IS_THREAD (play->pipeline), FALSE);
*/
/* creating pipeline */
play->pipeline = gst_pipeline_new ("main_pipeline");
g_return_val_if_fail (GST_IS_PIPELINE (play->pipeline), FALSE);
/* create source element */
play->source = gst_element_factory_make ("gnomevfssrc", "source");
if (!play->source)
{
gst_play_error_plugin (GST_PLAY_ERROR_GNOMEVFSSRC, error);
return FALSE;
}
/* Adding element to bin */
gst_bin_add (GST_BIN (play->pipeline), play->source);
/* create audio thread */
audio_thread = gst_thread_new ("audio_thread");
g_return_val_if_fail (GST_IS_THREAD (audio_thread), FALSE);
g_hash_table_insert (play->other_elements, "audio_thread", audio_thread);
/* create audio queue */
audio_queue = gst_element_factory_make ("queue", "audio_queue");
if (!audio_queue)
{
gst_play_error_plugin (GST_PLAY_ERROR_QUEUE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_queue", audio_queue);
/* create source element */
play->volume = gst_element_factory_make ("volume", "volume");
if (!play->volume)
{
gst_play_error_plugin (GST_PLAY_ERROR_VOLUME, error);
return FALSE;
}
/* create audiosink. */
play->audio_sink = gst_element_factory_make ("fakesink", "play_audio");
if (play->audio_sink == NULL)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
gst_bin_add_many (GST_BIN (audio_thread), audio_queue, play->volume,
play->audio_sink, NULL);
gst_element_link_many (audio_queue, play->volume, play->audio_sink);
gst_element_add_ghost_pad (audio_thread,
gst_element_get_pad (audio_queue, "sink"),
"sink");
gst_bin_add (GST_BIN (play->pipeline), audio_thread);
return TRUE;
}
static gboolean
gst_play_audioht_set_audio (GstPlay * play, GstElement * audio_sink)
{
GstElement *audio_thread;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (audio_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (audio_sink), FALSE);
audio_thread = g_hash_table_lookup (play->other_elements, "audio_thread");
if (play->audio_sink)
{
gst_element_unlink (play->volume, play->audio_sink);
gst_bin_remove (GST_BIN (audio_thread), play->audio_sink);
}
play->audio_sink = audio_sink;
gst_bin_add (GST_BIN (audio_thread), play->audio_sink);
gst_element_link (play->volume, play->audio_sink);
play->audio_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_AUDIO);
play->visualization_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_VIDEO);
if (play->audio_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->audio_sink_element), "eos",
G_CALLBACK (callback_audio_sink_eos), play);
}
return TRUE;
}
static gboolean
gst_play_audioht_set_auto (GstPlay * play, GstElement * autoplugger)
{
GstElement *audio_thread;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (autoplugger != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (autoplugger), FALSE);
audio_thread = g_hash_table_lookup (play->other_elements, "audio_thread");
if (play->autoplugger)
{
/* we need to remove the existing autoplugger
before creating a new one */
gst_element_unlink (play->autoplugger, audio_thread);
gst_element_unlink (play->autoplugger, play->source);
gst_bin_remove (GST_BIN (play->pipeline), play->autoplugger);
}
play->autoplugger = autoplugger;
g_return_val_if_fail (play->autoplugger != NULL, FALSE);
gst_bin_add (GST_BIN (play->pipeline), play->autoplugger);
gst_element_link (play->source, play->autoplugger);
gst_element_link (play->autoplugger, audio_thread);
return TRUE;
}
/*
* GST_PLAY_PIPE_VIDEO
* { gnomevfssrc ! spider ! { queue ! volume ! (audiosink) }
* spider0.src2 ! { queue ! colorspace ! (videosink) } }
*/
static gboolean
gst_play_video_setup (GstPlay * play, GError ** error)
{
GstElement *audio_bin, *audio_queue;
GstElement *video_queue, *video_bin;
GstElement *work_thread, *colorspace;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
/* creating pipeline */
play->pipeline = gst_pipeline_new ("main_pipeline");
g_return_val_if_fail (GST_IS_PIPELINE (play->pipeline), FALSE);
/* creating work thread */
work_thread = gst_thread_new ("work_thread");
g_return_val_if_fail (GST_IS_THREAD (work_thread), FALSE);
g_hash_table_insert (play->other_elements, "work_thread", work_thread);
gst_bin_add (GST_BIN (play->pipeline), work_thread);
/* create source element */
play->source = gst_element_factory_make ("gnomevfssrc", "source");
if (!play->source)
{
gst_play_error_plugin (GST_PLAY_ERROR_GNOMEVFSSRC, error);
return FALSE;
}
gst_bin_add (GST_BIN (work_thread), play->source);
/* creating volume element */
play->volume = gst_element_factory_make ("volume", "volume");
if (!play->volume)
{
gst_play_error_plugin (GST_PLAY_ERROR_VOLUME, error);
return FALSE;
}
/* creating audio_sink element */
play->audio_sink = gst_element_factory_make ("fakesink", "fake_audio");
if (!play->audio_sink)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
play->audio_sink_element = NULL;
/* creating audio_queue element */
audio_queue = gst_element_factory_make ("queue", "audio_queue");
if (!audio_queue)
{
gst_play_error_plugin (GST_PLAY_ERROR_QUEUE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_queue", audio_queue);
/* creating audio thread */
audio_bin = gst_thread_new ("audio_bin");
if (!audio_bin)
{
gst_play_error_plugin (GST_PLAY_ERROR_THREAD, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_bin", audio_bin);
/* adding all that stuff to bin */
gst_bin_add_many (GST_BIN (audio_bin), audio_queue, play->volume,
play->audio_sink, NULL);
gst_element_link_many (audio_queue, play->volume, play->audio_sink, NULL);
gst_element_add_ghost_pad (audio_bin,
gst_element_get_pad (audio_queue, "sink"),
"sink");
gst_bin_add (GST_BIN (work_thread), audio_bin);
/* create video elements */
play->video_sink = gst_element_factory_make ("fakesink", "fake_show");
if (!play->video_sink)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
play->video_sink_element = NULL;
video_queue = gst_element_factory_make ("queue", "video_queue");
if (!video_queue)
{
gst_play_error_plugin (GST_PLAY_ERROR_QUEUE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "video_queue", video_queue);
colorspace = gst_element_factory_make ("colorspace", "colorspace");
if (!colorspace)
{
gst_play_error_plugin (GST_PLAY_ERROR_COLORSPACE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "colorspace", colorspace);
video_bin = gst_thread_new ("video_bin");
if (!video_bin)
{
gst_play_error_plugin (GST_PLAY_ERROR_THREAD, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "video_bin", video_bin);
/* adding all that stuff to bin */
gst_bin_add_many (GST_BIN (video_bin), video_queue, colorspace,
play->video_sink, NULL);
gst_element_link_many (video_queue, colorspace, play->video_sink, NULL);
gst_element_add_ghost_pad (video_bin,
gst_element_get_pad (video_queue, "sink"),
"sink");
gst_bin_add (GST_BIN (work_thread), video_bin);
return TRUE;
}
static gboolean
gst_play_video_set_data_src (GstPlay * play, GstElement * datasrc)
{
GstElement *work_thread;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (datasrc != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (datasrc), FALSE);
work_thread = g_hash_table_lookup (play->other_elements, "work_thread");
return gst_play_default_set_data_src (play, datasrc, work_thread);
}
static gboolean
gst_play_video_set_auto (GstPlay * play, GstElement * autoplugger)
{
GstElement *audio_bin, *video_bin, *work_thread;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (autoplugger != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (autoplugger), FALSE);
audio_bin = g_hash_table_lookup (play->other_elements, "audio_bin");
video_bin = g_hash_table_lookup (play->other_elements, "video_bin");
work_thread = g_hash_table_lookup (play->other_elements, "work_thread");
if (play->autoplugger)
{
/* we need to remove the existing autoplugger
before creating a new one */
gst_element_unlink (play->autoplugger, audio_bin);
gst_element_unlink (play->autoplugger, play->source);
gst_element_unlink (play->autoplugger, video_bin);
gst_bin_remove (GST_BIN (work_thread), play->autoplugger);
}
play->autoplugger = autoplugger;
g_return_val_if_fail (play->autoplugger != NULL, FALSE);
gst_bin_add (GST_BIN (work_thread), play->autoplugger);
gst_element_link (play->source, play->autoplugger);
gst_element_link (play->autoplugger, audio_bin);
gst_element_link (play->autoplugger, video_bin);
return TRUE;
}
static gboolean
gst_play_video_set_video (GstPlay * play, GstElement * video_sink)
{
GstElement *video_mate, *video_bin;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (video_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (video_sink), FALSE);
video_bin = g_hash_table_lookup (play->other_elements, "video_bin");
video_mate = g_hash_table_lookup (play->other_elements, "colorspace");
if (play->video_sink)
{
gst_element_unlink (video_mate, play->video_sink);
gst_bin_remove (GST_BIN (video_bin), play->video_sink);
}
play->video_sink = video_sink;
gst_bin_add (GST_BIN (video_bin), play->video_sink);
gst_element_link (video_mate, play->video_sink);
play->video_sink_element = gst_play_get_sink_element (play,
video_sink,
GST_PLAY_SINK_TYPE_VIDEO);
if (play->video_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->video_sink_element),
"have_video_out",
G_CALLBACK (callback_video_have_video_out), play);
g_signal_connect (G_OBJECT (play->video_sink_element),
"have_size",
G_CALLBACK (callback_video_have_size), play);
g_object_set (G_OBJECT (play->video_sink_element),
"need_new_window", TRUE, "toplevel", FALSE, NULL);
}
return TRUE;
}
static gboolean
gst_play_video_set_audio (GstPlay * play, GstElement * audio_sink)
{
GstElement *audio_bin;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (audio_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (audio_sink), FALSE);
audio_bin = g_hash_table_lookup (play->other_elements, "audio_bin");
if (play->audio_sink)
{
gst_element_unlink (play->volume, play->audio_sink);
gst_bin_remove (GST_BIN (audio_bin), play->audio_sink);
}
play->audio_sink = audio_sink;
gst_bin_add (GST_BIN (audio_bin), play->audio_sink);
gst_element_link (play->volume, play->audio_sink);
play->audio_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_AUDIO);
play->visualization_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_VIDEO);
if (play->audio_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->audio_sink_element), "eos",
G_CALLBACK (callback_audio_sink_eos), play);
}
return TRUE;
}
/*
* GST_PLAY_PIPE_VIDEO_VISUALISATION
* { gnomevfssrc ! spider ! { queue ! volume ! (audiosink) }
* spider0.src2 ! { queue ! colorspace ! (videosink) } }
*/
static gboolean
gst_play_video_vis_setup (GstPlay * play, GError ** error)
{
GstElement *work_thread, *tee_element;
GstPad *tee_vis_pad, *tee_audio_pad;
GstPad *audio_sink_pad, *vis_video_thread_pad;
GstElement *vis_video_thread;
GstElement *audio_queue, *audio_sink;
GstElement *vis_colorspace, *vis_video_queue, *vis_video_sink;
GstElement *video_queue, *video_bin, *colorspace;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
/* creating pipeline */
play->pipeline = gst_pipeline_new ("main_pipeline");
g_return_val_if_fail (GST_IS_PIPELINE (play->pipeline), FALSE);
/* creating work thread */
work_thread = gst_thread_new ("work_thread");
g_return_val_if_fail (GST_IS_THREAD (work_thread), FALSE);
g_hash_table_insert (play->other_elements, "work_thread", work_thread);
gst_bin_add (GST_BIN (play->pipeline), work_thread);
/* create source element */
play->source = gst_element_factory_make ("gnomevfssrc", "source");
if (!play->source)
{
gst_play_error_plugin (GST_PLAY_ERROR_GNOMEVFSSRC, error);
return FALSE;
}
gst_bin_add (GST_BIN (work_thread), play->source);
/* BEGIN VIS STUFF */
/* Creating here the audio vis bin */
play->audio_sink = gst_thread_new ("audio_thread");
if (!play->audio_sink)
{
gst_play_error_plugin (GST_PLAY_ERROR_THREAD, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_bin", play->audio_sink);
audio_queue = gst_element_factory_make ("queue", "audio_queue");
if (!audio_queue)
{
gst_play_error_plugin (GST_PLAY_ERROR_QUEUE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_queue", audio_queue);
play->volume = gst_element_factory_make ("volume", "audio_volume");
if (!play->volume)
{
gst_play_error_plugin (GST_PLAY_ERROR_VOLUME, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_volume", play->volume);
tee_element = gst_element_factory_make ("tee", "audio_tee");
g_return_val_if_fail (GST_IS_ELEMENT (tee_element), FALSE);
g_hash_table_insert (play->other_elements, "vis_tee", play->audio_sink);
tee_vis_pad = gst_element_get_request_pad (tee_element, "src%d");
tee_audio_pad = gst_element_get_request_pad (tee_element, "src%d");
g_hash_table_insert (play->other_elements, "tee_vis_pad", tee_vis_pad);
g_hash_table_insert (play->other_elements, "tee_audio_pad", tee_audio_pad);
audio_sink = gst_element_factory_make ("fakesink", "audio_sink");
if (!audio_sink)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "audio_sink", audio_sink);
audio_sink_pad = gst_element_get_pad (audio_sink, "sink");
g_hash_table_insert (play->other_elements,
"audio_sink_pad", audio_sink_pad);
play->audio_sink_element = NULL;
gst_bin_add_many (GST_BIN (play->audio_sink),
audio_queue, play->volume, tee_element, audio_sink, NULL);
gst_element_link_many (audio_queue, play->volume, tee_element, NULL);
gst_pad_link (tee_audio_pad, audio_sink_pad);
gst_element_add_ghost_pad (play->audio_sink,
gst_element_get_pad (audio_queue, "sink"),
"sink");
/* Creating video part of the visualization bin
{ queue ! (visualization) ! colorspace ! (videosink) }
*/
vis_video_thread = gst_thread_new ("vis_video_thread");
if (!vis_video_thread)
{
gst_play_error_plugin (GST_PLAY_ERROR_THREAD, error);
return FALSE;
}
g_hash_table_insert (play->other_elements,
"vis_video_thread", vis_video_thread);
vis_video_queue = gst_element_factory_make ("queue", "vis_video_queue");
if (!vis_video_queue)
{
gst_play_error_plugin (GST_PLAY_ERROR_QUEUE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements,
"vis_video_queue", vis_video_queue);
vis_colorspace = gst_element_factory_make ("colorspace", "vis_colorspace");
if (!vis_colorspace)
{
gst_play_error_plugin (GST_PLAY_ERROR_COLORSPACE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements,
"vis_colorspace", vis_colorspace);
vis_video_sink = gst_element_factory_make ("fakesink", "vis_video_sink");
if (!vis_video_sink)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
g_hash_table_insert (play->other_elements,
"vis_video_sink", vis_video_sink);
play->video_sink_element = NULL;
gst_bin_add_many (GST_BIN (vis_video_thread), vis_video_queue,
vis_colorspace, vis_video_sink, NULL);
vis_video_thread_pad = gst_element_add_ghost_pad (vis_video_thread,
gst_element_get_pad
(vis_video_queue, "sink"),
"sink");
g_hash_table_insert (play->other_elements,
"vis_video_thread_pad", vis_video_thread_pad);
gst_bin_add (GST_BIN (play->audio_sink), vis_video_thread);
/* END VIS STUFF */
gst_bin_add (GST_BIN (work_thread), play->audio_sink);
/* create video elements */
play->video_sink = gst_element_factory_make ("fakesink", "fake_show");
if (!play->video_sink)
{
gst_play_error_plugin (GST_PLAY_ERROR_FAKESINK, error);
return FALSE;
}
play->video_sink_element = NULL;
video_queue = gst_element_factory_make ("queue", "video_queue");
if (!video_queue)
{
gst_play_error_plugin (GST_PLAY_ERROR_QUEUE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "video_queue", video_queue);
colorspace = gst_element_factory_make ("colorspace", "colorspace");
if (!colorspace)
{
gst_play_error_plugin (GST_PLAY_ERROR_COLORSPACE, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "colorspace", colorspace);
video_bin = gst_thread_new ("video_thread");
if (!video_bin)
{
gst_play_error_plugin (GST_PLAY_ERROR_THREAD, error);
return FALSE;
}
g_hash_table_insert (play->other_elements, "video_bin", video_bin);
/* adding all that stuff to bin */
gst_bin_add_many (GST_BIN (video_bin), video_queue, colorspace,
play->video_sink, NULL);
gst_element_link_many (video_queue, colorspace, play->video_sink, NULL);
gst_element_add_ghost_pad (video_bin,
gst_element_get_pad (video_queue, "sink"),
"sink");
gst_bin_add (GST_BIN (work_thread), video_bin);
return TRUE;
}
static gboolean
gst_play_video_vis_set_audio (GstPlay * play, GstElement * audio_sink)
{
GstElement *audio_bin, *vis_audio_sink;
GstPad *audio_sink_pad, *tee_audio_pad;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (audio_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (audio_sink), FALSE);
audio_bin = g_hash_table_lookup (play->other_elements, "audio_bin");
vis_audio_sink = g_hash_table_lookup (play->other_elements, "audio_sink");
audio_sink_pad = g_hash_table_lookup (play->other_elements,
"audio_sink_pad");
tee_audio_pad = g_hash_table_lookup (play->other_elements, "tee_audio_pad");
if ((vis_audio_sink) && GST_IS_ELEMENT (vis_audio_sink))
{
gst_pad_unlink (tee_audio_pad, audio_sink_pad);
gst_bin_remove (GST_BIN (audio_bin), vis_audio_sink);
}
gst_bin_add (GST_BIN (audio_bin), audio_sink);
audio_sink_pad = gst_element_get_pad (audio_sink, "sink");
gst_pad_link (tee_audio_pad, audio_sink_pad);
g_hash_table_replace (play->other_elements, "audio_sink", audio_sink);
g_hash_table_replace (play->other_elements,
"audio_sink_pad", audio_sink_pad);
play->audio_sink_element = gst_play_get_sink_element (play,
audio_sink,
GST_PLAY_SINK_TYPE_AUDIO);
if (play->audio_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->audio_sink_element), "eos",
G_CALLBACK (callback_audio_sink_eos), play);
}
return TRUE;
}
static gboolean
gst_play_video_vis_set_video (GstPlay * play, GstElement * video_sink)
{
GstElement *video_mate, *video_bin;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (video_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (video_sink), FALSE);
video_bin = g_hash_table_lookup (play->other_elements, "video_bin");
video_mate = g_hash_table_lookup (play->other_elements, "colorspace");
if (play->video_sink)
{
gst_element_unlink (video_mate, play->video_sink);
gst_bin_remove (GST_BIN (video_bin), play->video_sink);
}
play->video_sink = video_sink;
gst_bin_add (GST_BIN (video_bin), play->video_sink);
gst_element_link (video_mate, play->video_sink);
play->video_sink_element = gst_play_get_sink_element (play,
video_sink,
GST_PLAY_SINK_TYPE_VIDEO);
if (play->video_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->video_sink_element),
"have_video_out",
G_CALLBACK (callback_video_have_video_out), play);
g_signal_connect (G_OBJECT (play->video_sink_element),
"have_size",
G_CALLBACK (callback_video_have_size), play);
g_object_set (G_OBJECT (play->video_sink_element),
"need_new_window", TRUE, "toplevel", FALSE, NULL);
}
return TRUE;
}
/**
* gst_play_set_visualization_video_sink:
* @play: a #GstPlay.
* @video_sink: a #GstElement.
*
* Set @video_sink as the visualization video sink element of @play.
*
* Returns: TRUE if call succeeded.
*/
gboolean
gst_play_set_visualization_video_sink (GstPlay * play,
GstElement * video_sink)
{
GstElement *video_mate, *video_bin, *vis_video_sink;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (video_sink != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (video_sink), FALSE);
video_bin = g_hash_table_lookup (play->other_elements, "vis_video_thread");
video_mate = g_hash_table_lookup (play->other_elements, "vis_colorspace");
vis_video_sink = g_hash_table_lookup (play->other_elements,
"vis_video_sink");
if (vis_video_sink)
{
gst_element_unlink (video_mate, vis_video_sink);
gst_bin_remove (GST_BIN (video_bin), vis_video_sink);
}
gst_bin_add (GST_BIN (video_bin), video_sink);
gst_element_link (video_mate, video_sink);
g_hash_table_replace (play->other_elements, "vis_video_sink", video_sink);
play->visualization_sink_element = gst_play_get_sink_element (play,
video_sink,
GST_PLAY_SINK_TYPE_VIDEO);
if (play->visualization_sink_element != NULL)
{
g_signal_connect (G_OBJECT (play->visualization_sink_element),
"have_video_out",
G_CALLBACK (callback_video_have_vis_video_out), play);
g_signal_connect (G_OBJECT (play->visualization_sink_element),
"have_size",
G_CALLBACK (callback_video_have_vis_size), play);
g_object_set (G_OBJECT (play->visualization_sink_element),
"need_new_window", TRUE, "toplevel", FALSE, NULL);
}
return TRUE;
}
/**
* gst_play_set_visualization_element:
* @play: a #GstPlay.
* @element: a #GstElement.
*
* Set @video_sink as the video sink element of @play.
*
* Returns: TRUE if call succeeded.
*/
gboolean
gst_play_set_visualization_element (GstPlay * play, GstElement * element)
{
GstElement *video_queue, *video_colorspace;
GstElement *vis_element, *vis_video_bin;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
vis_video_bin = g_hash_table_lookup (play->other_elements,
"vis_video_thread");
video_queue = g_hash_table_lookup (play->other_elements, "vis_video_queue");
video_colorspace = g_hash_table_lookup (play->other_elements,
"vis_colorspace");
vis_element = g_hash_table_lookup (play->other_elements, "vis_element");
if (vis_element)
{
gst_element_unlink (video_queue, vis_element);
gst_element_unlink (vis_element, video_colorspace);
gst_bin_remove (GST_BIN (vis_video_bin), vis_element);
}
gst_bin_add (GST_BIN (vis_video_bin), element);
gst_element_link_many (video_queue, element, video_colorspace, NULL);
g_hash_table_replace (play->other_elements, "vis_element", element);
return TRUE;
}
/**
* gst_play_connect_visualization:
* @play: a #GstPlay.
* @connect: a #gboolean indicating wether or not
* visualization should be connected.
*
* Connect or disconnect visualization bin in @play.
*
* Returns: TRUE if call succeeded.
*/
gboolean
gst_play_connect_visualization (GstPlay * play, gboolean connect)
{
GstPad *tee_vis_pad, *vis_video_thread_pad;
GstElement *vis_video_thread;
gboolean connected = FALSE, was_playing = FALSE;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
tee_vis_pad = g_hash_table_lookup (play->other_elements, "tee_vis_pad");
vis_video_thread_pad = g_hash_table_lookup (play->other_elements,
"vis_video_thread_pad");
vis_video_thread = g_hash_table_lookup (play->other_elements,
"vis_video_thread");
/* If pipeline was playing we pause it and note that */
if (gst_element_get_state (play->pipeline) == GST_STATE_PLAYING)
{
gst_element_set_state (play->pipeline, GST_STATE_PAUSED);
was_playing = TRUE;
}
if (gst_pad_get_peer (vis_video_thread_pad) != NULL)
connected = TRUE;
else
connected = FALSE;
if ((connect) && (!connected))
{
gst_pad_link (tee_vis_pad, vis_video_thread_pad);
}
else if ((!connect) && (connected))
{
gst_pad_unlink (tee_vis_pad, vis_video_thread_pad);
}
/* Restore playing state if needed */
if (GST_IS_ELEMENT (vis_video_thread) &&
GST_IS_ELEMENT (play->pipeline) &&
was_playing)
{
gst_element_set_state (play->pipeline, GST_STATE_PLAYING);
}
return TRUE;
}
/* modelines */
/* vim:set ts=8:sw=8:noet */
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