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ab07e8f25a
Original commit message from CVS: 2004-01-14 Julien MOUTTE <julien@moutte.net> * gst-libs/gst/play/gstplay.c: (gst_play_pipeline_setup), (gst_play_set_location), (gst_play_set_visualization): Preparing switch integration, adding videobalance in the pipeline.
1056 lines
34 KiB
C
1056 lines
34 KiB
C
/* GStreamer
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* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "gstplay.h"
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enum
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{
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TIME_TICK,
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STREAM_LENGTH,
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HAVE_VIDEO_SIZE,
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LAST_SIGNAL
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};
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struct _GstPlayPrivate {
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char *location;
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GHashTable *elements;
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gint64 time_nanos;
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gint64 length_nanos;
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gint get_length_attempt;
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guint tick_id;
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guint length_id;
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};
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static guint gst_play_signals[LAST_SIGNAL] = { 0 };
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static GstPipelineClass *parent_class = NULL;
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/* ======================================================= */
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/* */
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/* Private Methods */
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/* */
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/* ======================================================= */
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static gboolean
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gst_play_pipeline_setup (GstPlay *play)
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{
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GstElement *work_thread, *video_thread, *source;
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GstElement *autoplugger, *switch_colorspace, *video_switch, *video_queue;
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GstElement *video_balance, *video_colorspace, *video_scaler, *video_sink;
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GstElement *audio_thread, *audio_queue, *audio_volume, *audio_sink;
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GstElement *audio_tee, *vis_thread, *vis_queue, *vis_element, *end_vis_queue;
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GstPad *audio_tee_pad1, *audio_tee_pad2, *vis_thread_pad, *audio_sink_pad;
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g_return_val_if_fail (play != NULL, FALSE);
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g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
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work_thread = gst_element_factory_make ("thread", "work_thread");
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if (!GST_IS_ELEMENT (work_thread))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "work_thread", work_thread);
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gst_bin_add (GST_BIN (play), work_thread);
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/* Placeholder for the source and autoplugger { fakesrc ! spider } */
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source = gst_element_factory_make ("fakesrc", "source");
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if (!GST_IS_ELEMENT (source))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "source", source);
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autoplugger = gst_element_factory_make ("spider", "autoplugger");
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if (!GST_IS_ELEMENT (autoplugger))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "autoplugger", autoplugger);
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gst_bin_add_many (GST_BIN (work_thread), source, autoplugger, NULL);
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gst_element_link (source, autoplugger);
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/* Creating our video output bin
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{ queue ! videobalance ! colorspace ! videoscale ! fakesink } */
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video_thread = gst_element_factory_make ("thread", "video_thread");
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if (!GST_IS_ELEMENT (video_thread))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "video_thread", video_thread);
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gst_bin_add (GST_BIN (work_thread), video_thread);
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/* Buffer queue for our video thread */
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video_queue = gst_element_factory_make ("queue", "video_queue");
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if (!GST_IS_ELEMENT (video_queue))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "video_queue", video_queue);
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video_balance = gst_element_factory_make ("videobalance",
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"video_balance");
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if (!GST_IS_ELEMENT (video_balance))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "video_balance",
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video_balance);
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/* Colorspace conversion */
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video_colorspace = gst_element_factory_make ("ffcolorspace",
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"video_colorspace");
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if (!GST_IS_ELEMENT (video_colorspace)) {
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video_colorspace = gst_element_factory_make ("colorspace",
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"video_colorspace");
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if (!GST_IS_ELEMENT (video_colorspace))
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return FALSE;
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}
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g_hash_table_insert (play->priv->elements, "video_colorspace",
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video_colorspace);
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/* Software scaling of video stream */
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video_scaler = gst_element_factory_make ("videoscale", "video_scaler");
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if (!GST_IS_ELEMENT (video_scaler))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "video_scaler", video_scaler);
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/* Placeholder for future video sink bin */
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video_sink = gst_element_factory_make ("fakesink", "video_sink");
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if (!GST_IS_ELEMENT (video_sink))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "video_sink", video_sink);
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/* Linking, Adding, Ghosting */
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gst_element_link_many (video_queue, video_balance, video_colorspace,
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video_scaler, video_sink, NULL);
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gst_bin_add_many (GST_BIN (video_thread), video_queue, video_balance,
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video_colorspace, video_scaler, video_sink, NULL);
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gst_element_add_ghost_pad (video_thread,
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gst_element_get_pad (video_queue, "sink"),
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"sink");
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/* autoplugger ! ffcolorspace ! switch */
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switch_colorspace = NULL;
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switch_colorspace = gst_element_factory_make ("ffcolorspace",
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"switch_colorspace");
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if (!GST_IS_ELEMENT (switch_colorspace)) {
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switch_colorspace = gst_element_factory_make ("colorspace",
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"switch_colorspace");
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if (!GST_IS_ELEMENT (switch_colorspace))
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return FALSE;
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}
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g_hash_table_insert (play->priv->elements, "switch_colorspace",
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switch_colorspace);
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video_switch = gst_element_factory_make ("switch",
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"video_switch");
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if (!GST_IS_ELEMENT (video_switch))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "video_switch", video_switch);
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gst_bin_add_many (GST_BIN (work_thread), switch_colorspace,
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/*video_switch,*/ NULL);
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/* Connecting autoplugger to video switch and video switch to video output */
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gst_element_link_many (autoplugger, switch_colorspace,
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/*video_switch,*/ video_thread, NULL);
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/* gst_element_link (autoplugger, video_thread); */
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/* Creating our audio output bin
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{ queue ! volume ! tee ! { queue ! goom } ! fakesink } */
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audio_thread = gst_element_factory_make ("thread", "audio_thread");
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if (!GST_IS_ELEMENT (audio_thread))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "audio_thread", audio_thread);
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gst_bin_add (GST_BIN (work_thread), audio_thread);
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/* Buffer queue for our audio thread */
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audio_queue = gst_element_factory_make ("queue", "audio_queue");
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if (!GST_IS_ELEMENT (audio_queue))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "audio_queue", audio_queue);
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/* Volume control */
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audio_volume = gst_element_factory_make ("volume", "audio_volume");
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if (!GST_IS_ELEMENT (audio_volume))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "audio_volume", audio_volume);
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/* Duplicate audio signal to sink and visualization thread */
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audio_tee = gst_element_factory_make ("tee", "audio_tee");
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if (!GST_IS_ELEMENT (audio_tee))
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return FALSE;
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audio_tee_pad1 = gst_element_get_request_pad (audio_tee, "src%d");
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audio_tee_pad2 = gst_element_get_request_pad (audio_tee, "src%d");
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g_hash_table_insert (play->priv->elements, "audio_tee_pad1",
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audio_tee_pad1);
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g_hash_table_insert (play->priv->elements, "audio_tee_pad2",
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audio_tee_pad2);
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g_hash_table_insert (play->priv->elements, "audio_tee", audio_tee);
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/* Placeholder for future audio sink bin */
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audio_sink = gst_element_factory_make ("fakesink", "audio_sink");
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if (!GST_IS_ELEMENT (audio_sink))
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return FALSE;
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audio_sink_pad = gst_element_get_pad (audio_sink, "sink");
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g_hash_table_insert (play->priv->elements, "audio_sink_pad",
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audio_sink_pad);
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g_hash_table_insert (play->priv->elements, "audio_sink", audio_sink);
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/* Visualization thread */
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vis_thread = gst_element_factory_make ("thread", "vis_thread");
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if (!GST_IS_ELEMENT (vis_thread))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "vis_thread", vis_thread);
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/* Buffer queue for our visualization thread */
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vis_queue = gst_element_factory_make ("queue", "vis_queue");
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if (!GST_IS_ELEMENT (vis_queue))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "vis_queue", vis_queue);
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vis_element = gst_element_factory_make ("identity", "vis_element");
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if (!GST_IS_ELEMENT (vis_element))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "vis_element", vis_element);
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end_vis_queue = gst_element_factory_make ("queue", "end_vis_queue");
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if (!GST_IS_ELEMENT (end_vis_queue))
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return FALSE;
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g_hash_table_insert (play->priv->elements, "end_vis_queue",
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end_vis_queue);
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/* Adding, Linking, Ghosting in visualization */
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gst_bin_add_many (GST_BIN (vis_thread), vis_queue, vis_element,
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end_vis_queue, NULL);
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gst_element_link_many (vis_queue, vis_element, end_vis_queue, NULL);
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vis_thread_pad = gst_element_add_ghost_pad (vis_thread,
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gst_element_get_pad (vis_queue, "sink"),
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"sink");
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g_hash_table_insert (play->priv->elements, "vis_thread_pad",
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vis_thread_pad);
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/* Linking, Adding, Ghosting in audio */
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gst_element_link_many (audio_queue, audio_volume, audio_tee, NULL);
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gst_pad_link (audio_tee_pad1, audio_sink_pad);
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gst_bin_add_many (GST_BIN (audio_thread), audio_queue, audio_volume,
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audio_tee, vis_thread, audio_sink, NULL);
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gst_element_add_ghost_pad (audio_thread,
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gst_element_get_pad (audio_queue, "sink"),
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"sink");
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/* Connecting audio output to autoplugger */
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gst_element_link (autoplugger, audio_thread);
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return TRUE;
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}
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static void
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gst_play_have_video_size (GstElement *element, gint width,
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gint height, GstPlay *play)
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{
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g_return_if_fail (play != NULL);
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g_return_if_fail (GST_IS_PLAY (play));
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g_signal_emit (G_OBJECT (play), gst_play_signals[HAVE_VIDEO_SIZE],
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0, width, height);
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}
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static gboolean
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gst_play_tick_callback (GstPlay *play)
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{
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GstElement* audio_sink_element;
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GstClockTime time;
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g_return_val_if_fail (play != NULL, FALSE);
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if (!GST_IS_PLAY (play)) {
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play->priv->tick_id = 0;
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return FALSE;
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}
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audio_sink_element = g_hash_table_lookup (play->priv->elements,
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"audio_sink_element");
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time = gst_element_get_time (audio_sink_element);
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play->priv->time_nanos = GST_CLOCK_TIME_IS_VALID (time) ? time : 0;
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g_signal_emit (G_OBJECT (play), gst_play_signals[TIME_TICK],
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0,play->priv->time_nanos);
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if (GST_STATE (GST_ELEMENT (play)) == GST_STATE_PLAYING)
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return TRUE;
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else {
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play->priv->tick_id = 0;
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return FALSE;
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}
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}
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static gboolean
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gst_play_get_length_callback (GstPlay *play)
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{
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GstElement *audio_sink_element, *video_sink_element;
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GstFormat format = GST_FORMAT_TIME;
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gint64 value;
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gboolean q = FALSE;
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g_return_val_if_fail (play != NULL, FALSE);
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g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
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/* We try to get length from all real sink elements */
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audio_sink_element = g_hash_table_lookup (play->priv->elements,
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"audio_sink_element");
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video_sink_element = g_hash_table_lookup (play->priv->elements,
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"video_sink_element");
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if (!GST_IS_ELEMENT (audio_sink_element) &&
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!GST_IS_ELEMENT (video_sink_element)) {
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play->priv->length_id = 0;
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return FALSE;
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}
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/* Audio first and then Video */
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if (GST_IS_ELEMENT (audio_sink_element))
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q = gst_element_query (audio_sink_element, GST_QUERY_TOTAL, &format,
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&value);
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if ( (!q) && (GST_IS_ELEMENT (video_sink_element)) )
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q = gst_element_query (video_sink_element, GST_QUERY_TOTAL, &format,
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&value);
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if (q) {
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play->priv->length_nanos = value;
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g_signal_emit (G_OBJECT (play), gst_play_signals[STREAM_LENGTH],
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0,play->priv->length_nanos);
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play->priv->length_id = 0;
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return FALSE;
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}
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play->priv->get_length_attempt++;
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/* We try 16 times */
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if (play->priv->get_length_attempt > 15) {
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play->priv->length_id = 0;
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return FALSE;
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}
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else
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return TRUE;
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}
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static void
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gst_play_state_change (GstElement *element, GstElementState old,
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GstElementState state)
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{
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GstPlay *play;
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g_return_if_fail (element != NULL);
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g_return_if_fail (GST_IS_PLAY (element));
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play = GST_PLAY (element);
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if (state == GST_STATE_PLAYING) {
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if (play->priv->tick_id) {
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g_source_remove (play->priv->tick_id);
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play->priv->tick_id = 0;
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}
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play->priv->tick_id = g_timeout_add (200,
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(GSourceFunc) gst_play_tick_callback,
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play);
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play->priv->get_length_attempt = 0;
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if (play->priv->length_id) {
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g_source_remove (play->priv->length_id);
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play->priv->length_id = 0;
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}
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play->priv->length_id = g_timeout_add (200,
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(GSourceFunc) gst_play_get_length_callback,
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play);
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}
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if (GST_ELEMENT_CLASS (parent_class)->state_change)
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GST_ELEMENT_CLASS (parent_class)->state_change (element, old, state);
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}
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/* =========================================== */
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/* */
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/* Init & Dispose & Class init */
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/* */
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/* =========================================== */
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static void
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gst_play_dispose (GObject *object)
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{
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GstPlay *play;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GST_IS_PLAY (object));
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play = GST_PLAY (object);
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if (play->priv->length_id) {
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g_source_remove (play->priv->length_id);
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play->priv->length_id = 0;
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}
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if (play->priv->tick_id) {
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g_source_remove (play->priv->tick_id);
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play->priv->tick_id = 0;
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}
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if (play->priv->location) {
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g_free (play->priv->location);
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play->priv->location = NULL;
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}
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if (play->priv->elements) {
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g_hash_table_destroy (play->priv->elements);
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play->priv->elements = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_play_init (GstPlay *play)
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{
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play->priv = g_new0 (GstPlayPrivate, 1);
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play->priv->location = NULL;
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play->priv->length_nanos = 0;
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play->priv->time_nanos = 0;
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play->priv->elements = g_hash_table_new (g_str_hash, g_str_equal);
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if (!gst_play_pipeline_setup (play))
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g_warning ("libgstplay: failed initializing pipeline");
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}
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static void
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gst_play_class_init (GstPlayClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->dispose = gst_play_dispose;
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element_class->state_change = gst_play_state_change;
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gst_play_signals[TIME_TICK] =
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g_signal_new ("time_tick", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GstPlayClass, time_tick), NULL, NULL,
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|
gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64);
|
|
gst_play_signals[STREAM_LENGTH] =
|
|
g_signal_new ("stream_length", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GstPlayClass, stream_length), NULL, NULL,
|
|
gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64);
|
|
gst_play_signals[HAVE_VIDEO_SIZE] =
|
|
g_signal_new ("have_video_size", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GstPlayClass, have_video_size), NULL, NULL,
|
|
gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
|
|
G_TYPE_INT, G_TYPE_INT);
|
|
}
|
|
|
|
/* ======================================================= */
|
|
/* */
|
|
/* Public Methods */
|
|
/* */
|
|
/* ======================================================= */
|
|
|
|
/**
|
|
* gst_play_set_location:
|
|
* @play: a #GstPlay.
|
|
* @location: a const #char* indicating location to play
|
|
*
|
|
* Set location of @play to @location.
|
|
*
|
|
* Returns: TRUE if location was set successfully.
|
|
*/
|
|
gboolean
|
|
gst_play_set_location (GstPlay *play, const char *location)
|
|
{
|
|
GstElement *work_thread, *source, *autoplugger;
|
|
GstElement *switch_colorspace, *audio_thread;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
|
|
if (play->priv->location)
|
|
g_free (play->priv->location);
|
|
|
|
play->priv->location = g_strdup (location);
|
|
|
|
if (GST_STATE (GST_ELEMENT (play)) != GST_STATE_READY)
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_READY);
|
|
|
|
work_thread = g_hash_table_lookup (play->priv->elements, "work_thread");
|
|
if (!GST_IS_ELEMENT (work_thread))
|
|
return FALSE;
|
|
switch_colorspace = g_hash_table_lookup (play->priv->elements,
|
|
"switch_colorspace");
|
|
if (!GST_IS_ELEMENT (switch_colorspace))
|
|
return FALSE;
|
|
audio_thread = g_hash_table_lookup (play->priv->elements, "audio_thread");
|
|
if (!GST_IS_ELEMENT (audio_thread))
|
|
return FALSE;
|
|
source = g_hash_table_lookup (play->priv->elements, "source");
|
|
if (!GST_IS_ELEMENT (source))
|
|
return FALSE;
|
|
autoplugger = g_hash_table_lookup (play->priv->elements, "autoplugger");
|
|
if (!GST_IS_ELEMENT (autoplugger))
|
|
return FALSE;
|
|
|
|
/* Spider can autoplugg only once. We remove the actual one and put a new
|
|
autoplugger */
|
|
gst_element_unlink (source, autoplugger);
|
|
gst_element_unlink (autoplugger, switch_colorspace);
|
|
gst_element_unlink (autoplugger, audio_thread);
|
|
gst_bin_remove (GST_BIN (work_thread), autoplugger);
|
|
|
|
autoplugger = gst_element_factory_make ("spider", "autoplugger");
|
|
if (!GST_IS_ELEMENT (autoplugger))
|
|
return FALSE;
|
|
|
|
gst_bin_add (GST_BIN (work_thread), autoplugger);
|
|
gst_element_link (source, autoplugger);
|
|
gst_element_link (autoplugger, switch_colorspace);
|
|
gst_element_link (autoplugger, audio_thread);
|
|
|
|
g_hash_table_replace (play->priv->elements, "autoplugger", autoplugger);
|
|
|
|
/* FIXME: Why don't we have an interface to do that kind of stuff ? */
|
|
g_object_set (G_OBJECT (source), "location", play->priv->location, NULL);
|
|
|
|
play->priv->length_nanos = 0LL;
|
|
play->priv->time_nanos = 0LL;
|
|
|
|
g_signal_emit (G_OBJECT (play), gst_play_signals[STREAM_LENGTH], 0, 0LL);
|
|
g_signal_emit (G_OBJECT (play), gst_play_signals[TIME_TICK], 0, 0LL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_play_get_location:
|
|
* @play: a #GstPlay.
|
|
*
|
|
* Get current location of @play.
|
|
*
|
|
* Returns: a const #char* pointer to current location.
|
|
*/
|
|
char *
|
|
gst_play_get_location (GstPlay *play)
|
|
{
|
|
g_return_val_if_fail (play != NULL, NULL);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), NULL);
|
|
return g_strdup (play->priv->location);
|
|
}
|
|
|
|
/**
|
|
* gst_play_seek_to_time:
|
|
* @play: a #GstPlay.
|
|
* @time_nanos: a #gint64 indicating a time position.
|
|
*
|
|
* Performs a seek on @play until @time_nanos.
|
|
*/
|
|
gboolean
|
|
gst_play_seek_to_time (GstPlay * play, gint64 time_nanos)
|
|
{
|
|
GstElement *audio_sink_element, *video_sink_element;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
|
|
if (time_nanos < 0LL)
|
|
time_nanos = 0LL;
|
|
|
|
audio_sink_element = g_hash_table_lookup (play->priv->elements,
|
|
"audio_sink_element");
|
|
video_sink_element = g_hash_table_lookup (play->priv->elements,
|
|
"video_sink_element");
|
|
|
|
if (GST_IS_ELEMENT (audio_sink_element) &&
|
|
GST_IS_ELEMENT (video_sink_element)) {
|
|
gboolean s = FALSE;
|
|
|
|
s = gst_element_seek (audio_sink_element, GST_FORMAT_TIME |
|
|
GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH,
|
|
time_nanos);
|
|
if (!s) {
|
|
s = gst_element_seek (video_sink_element, GST_FORMAT_TIME |
|
|
GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH,
|
|
time_nanos);
|
|
}
|
|
|
|
if (s) {
|
|
GstClock *clock = gst_bin_get_clock (GST_BIN (play));
|
|
play->priv->time_nanos = gst_clock_get_time (clock);
|
|
g_signal_emit (G_OBJECT (play), gst_play_signals[TIME_TICK],
|
|
0,play->priv->time_nanos);
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_play_set_data_src:
|
|
* @play: a #GstPlay.
|
|
* @data_src: a #GstElement.
|
|
*
|
|
* Set @data_src as the source element of @play.
|
|
*
|
|
* Returns: TRUE if call succeeded.
|
|
*/
|
|
gboolean
|
|
gst_play_set_data_src (GstPlay *play, GstElement *data_src)
|
|
{
|
|
GstElement *work_thread, *old_data_src, *autoplugger;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
|
|
/* We bring back the pipeline to READY */
|
|
if (GST_STATE (GST_ELEMENT (play)) != GST_STATE_READY)
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_READY);
|
|
|
|
/* Getting needed objects */
|
|
work_thread = g_hash_table_lookup (play->priv->elements, "work_thread");
|
|
if (!GST_IS_ELEMENT (work_thread))
|
|
return FALSE;
|
|
old_data_src = g_hash_table_lookup (play->priv->elements, "source");
|
|
if (!GST_IS_ELEMENT (old_data_src))
|
|
return FALSE;
|
|
autoplugger = g_hash_table_lookup (play->priv->elements, "autoplugger");
|
|
if (!GST_IS_ELEMENT (autoplugger))
|
|
return FALSE;
|
|
|
|
/* Unlinking old source from autoplugger, removing it from pipeline, adding
|
|
the new one and connecting it to autoplugger FIXME: we should put a new
|
|
autoplugger here as spider can autoplugg only once */
|
|
gst_element_unlink (old_data_src, autoplugger);
|
|
gst_bin_remove (GST_BIN (work_thread), old_data_src);
|
|
gst_bin_add (GST_BIN (work_thread), data_src);
|
|
gst_element_link (data_src, autoplugger);
|
|
|
|
g_hash_table_replace (play->priv->elements, "source", data_src);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_play_set_video_sink:
|
|
* @play: a #GstPlay.
|
|
* @video_sink: a #GstElement.
|
|
*
|
|
* Set @video_sink as the video sink element of @play.
|
|
*
|
|
* Returns: TRUE if call succeeded.
|
|
*/
|
|
gboolean
|
|
gst_play_set_video_sink (GstPlay *play, GstElement *video_sink)
|
|
{
|
|
GstElement *video_thread, *old_video_sink, *video_scaler, *video_sink_element;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
g_return_val_if_fail (video_sink != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_ELEMENT (video_sink), FALSE);
|
|
|
|
/* We bring back the pipeline to READY */
|
|
if (GST_STATE (GST_ELEMENT (play)) != GST_STATE_READY)
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_READY);
|
|
|
|
/* Getting needed objects */
|
|
video_thread = g_hash_table_lookup (play->priv->elements, "video_thread");
|
|
if (!GST_IS_ELEMENT (video_thread))
|
|
return FALSE;
|
|
old_video_sink = g_hash_table_lookup (play->priv->elements, "video_sink");
|
|
if (!GST_IS_ELEMENT (old_video_sink))
|
|
return FALSE;
|
|
video_scaler = g_hash_table_lookup (play->priv->elements, "video_scaler");
|
|
if (!GST_IS_ELEMENT (video_scaler))
|
|
return FALSE;
|
|
|
|
/* Unlinking old video sink from video scaler, removing it from pipeline,
|
|
adding the new one and linking it */
|
|
gst_element_unlink (video_scaler, old_video_sink);
|
|
gst_bin_remove (GST_BIN (video_thread), old_video_sink);
|
|
gst_bin_add (GST_BIN (video_thread), video_sink);
|
|
gst_element_link (video_scaler, video_sink);
|
|
|
|
g_hash_table_replace (play->priv->elements, "video_sink", video_sink);
|
|
|
|
video_sink_element = gst_play_get_sink_element (play, video_sink,
|
|
GST_PLAY_SINK_TYPE_VIDEO);
|
|
if (GST_IS_ELEMENT (video_sink_element)) {
|
|
g_hash_table_replace (play->priv->elements, "video_sink_element",
|
|
video_sink_element);
|
|
if (GST_IS_X_OVERLAY (video_sink_element)) {
|
|
g_signal_connect (G_OBJECT (video_sink_element),
|
|
"desired_size_changed",
|
|
G_CALLBACK (gst_play_have_video_size), play);
|
|
}
|
|
}
|
|
|
|
gst_element_set_state (video_sink, GST_STATE (GST_ELEMENT(play)));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_play_set_audio_sink:
|
|
* @play: a #GstPlay.
|
|
* @audio_sink: a #GstElement.
|
|
*
|
|
* Set @audio_sink as the audio sink element of @play.
|
|
*
|
|
* Returns: TRUE if call succeeded.
|
|
*/
|
|
gboolean
|
|
gst_play_set_audio_sink (GstPlay *play, GstElement *audio_sink)
|
|
{
|
|
GstElement *old_audio_sink, *audio_thread, *audio_sink_element;
|
|
GstPad *audio_tee_pad1, *audio_sink_pad, *old_audio_sink_pad;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
g_return_val_if_fail (audio_sink != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_ELEMENT (audio_sink), FALSE);
|
|
|
|
/* We bring back the pipeline to READY */
|
|
if (GST_STATE (GST_ELEMENT (play)) != GST_STATE_READY)
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_READY);
|
|
|
|
/* Getting needed objects */
|
|
old_audio_sink = g_hash_table_lookup (play->priv->elements, "audio_sink");
|
|
if (!GST_IS_ELEMENT (old_audio_sink))
|
|
return FALSE;
|
|
old_audio_sink_pad = g_hash_table_lookup (play->priv->elements,
|
|
"audio_sink_pad");
|
|
if (!GST_IS_PAD (old_audio_sink_pad))
|
|
return FALSE;
|
|
audio_thread = g_hash_table_lookup (play->priv->elements, "audio_thread");
|
|
if (!GST_IS_ELEMENT (audio_thread))
|
|
return FALSE;
|
|
audio_tee_pad1 = g_hash_table_lookup (play->priv->elements,
|
|
"audio_tee_pad1");
|
|
if (!GST_IS_PAD (audio_tee_pad1))
|
|
return FALSE;
|
|
audio_sink_pad = gst_element_get_pad (audio_sink, "sink");
|
|
if (!GST_IS_PAD (audio_sink_pad))
|
|
return FALSE;
|
|
|
|
/* Unlinking old audiosink, removing it from pipeline, putting the new one
|
|
and linking it */
|
|
gst_pad_unlink (audio_tee_pad1, old_audio_sink_pad);
|
|
gst_bin_remove (GST_BIN (audio_thread), old_audio_sink);
|
|
gst_bin_add (GST_BIN (audio_thread), audio_sink);
|
|
gst_pad_link (audio_tee_pad1, audio_sink_pad);
|
|
|
|
g_hash_table_replace (play->priv->elements, "audio_sink", audio_sink);
|
|
g_hash_table_replace (play->priv->elements, "audio_sink_pad",
|
|
audio_sink_pad);
|
|
|
|
audio_sink_element = gst_play_get_sink_element (play, audio_sink,
|
|
GST_PLAY_SINK_TYPE_AUDIO);
|
|
if (GST_IS_ELEMENT (audio_sink_element)) {
|
|
g_hash_table_replace (play->priv->elements, "audio_sink_element",
|
|
audio_sink_element);
|
|
}
|
|
|
|
gst_element_set_state (audio_sink, GST_STATE (GST_ELEMENT(play)));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_play_set_visualization:
|
|
* @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 (GstPlay *play, GstElement *vis_element)
|
|
{
|
|
GstElement *old_vis_element, *vis_thread, *vis_queue, *end_vis_queue;
|
|
gboolean was_playing = FALSE;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
g_return_val_if_fail (vis_element != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_ELEMENT (vis_element), FALSE);
|
|
|
|
/* We bring back the pipeline to READY */
|
|
if (GST_STATE (GST_ELEMENT (play)) == GST_STATE_PLAYING) {
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_PAUSED);
|
|
was_playing = TRUE;
|
|
}
|
|
|
|
/* Getting needed objects */
|
|
vis_thread = g_hash_table_lookup (play->priv->elements, "vis_thread");
|
|
if (!GST_IS_ELEMENT (vis_thread))
|
|
return FALSE;
|
|
old_vis_element = g_hash_table_lookup (play->priv->elements,
|
|
"vis_element");
|
|
if (!GST_IS_ELEMENT (old_vis_element))
|
|
return FALSE;
|
|
vis_queue = g_hash_table_lookup (play->priv->elements, "vis_queue");
|
|
if (!GST_IS_ELEMENT (vis_queue))
|
|
return FALSE;
|
|
end_vis_queue = g_hash_table_lookup (play->priv->elements, "end_vis_queue");
|
|
if (!GST_IS_ELEMENT (end_vis_queue))
|
|
return FALSE;
|
|
|
|
/* Unlinking, removing the old element then adding and linking the new one */
|
|
gst_element_unlink (vis_queue, old_vis_element);
|
|
gst_element_unlink (old_vis_element, end_vis_queue);
|
|
gst_bin_remove (GST_BIN (vis_thread), old_vis_element);
|
|
gst_bin_add (GST_BIN (vis_thread), vis_element);
|
|
gst_element_link (vis_queue, vis_element);
|
|
gst_element_link (vis_element, end_vis_queue);
|
|
|
|
if (was_playing)
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_PLAYING);
|
|
|
|
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 *audio_tee_pad2, *vis_thread_pad;
|
|
gboolean connected = FALSE, was_playing = FALSE;
|
|
|
|
g_return_val_if_fail (play != NULL, FALSE);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
|
|
|
|
vis_thread_pad = g_hash_table_lookup (play->priv->elements,
|
|
"vis_thread_pad");
|
|
if (!GST_IS_PAD (vis_thread_pad))
|
|
return FALSE;
|
|
audio_tee_pad2 = g_hash_table_lookup (play->priv->elements,
|
|
"audio_tee_pad2");
|
|
if (!GST_IS_PAD (audio_tee_pad2))
|
|
return FALSE;
|
|
|
|
if (GST_STATE (GST_ELEMENT (play)) == GST_STATE_PLAYING) {
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_PAUSED);
|
|
was_playing = TRUE;
|
|
}
|
|
|
|
if (gst_pad_get_peer (vis_thread_pad) != NULL)
|
|
connected = TRUE;
|
|
else
|
|
connected = FALSE;
|
|
|
|
if ((connect) && (!connected))
|
|
gst_pad_link (audio_tee_pad2, vis_thread_pad);
|
|
else if ((!connect) && (connected))
|
|
gst_pad_unlink (audio_tee_pad2, vis_thread_pad);
|
|
|
|
if (was_playing)
|
|
gst_element_set_state (GST_ELEMENT (play), GST_STATE_PLAYING);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_play_get_sink_element:
|
|
* @play: a #GstPlay.
|
|
* @element: a #GstElement.
|
|
* @sink_type: a #GstPlaySinkType.
|
|
*
|
|
* Searches recursively for a sink #GstElement with
|
|
* type @sink_type in @element which is supposed to be a #GstBin.
|
|
*
|
|
* Returns: the sink #GstElement of @element.
|
|
*/
|
|
GstElement *
|
|
gst_play_get_sink_element (GstPlay *play,
|
|
GstElement *element, GstPlaySinkType sink_type)
|
|
{
|
|
GList *elements = NULL;
|
|
const GList *pads = NULL;
|
|
gboolean has_src, has_correct_type;
|
|
|
|
g_return_val_if_fail (play != NULL, NULL);
|
|
g_return_val_if_fail (element != NULL, NULL);
|
|
g_return_val_if_fail (GST_IS_PLAY (play), NULL);
|
|
g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
|
|
|
|
if (!GST_IS_BIN (element)) {
|
|
/* since its not a bin, we'll presume this
|
|
* element is a sink element */
|
|
return element;
|
|
}
|
|
|
|
elements = (GList *) gst_bin_get_list (GST_BIN (element));
|
|
|
|
/* traverse all elements looking for a src pad */
|
|
|
|
while (elements) {
|
|
element = GST_ELEMENT (elements->data);
|
|
|
|
/* Recursivity :) */
|
|
|
|
if (GST_IS_BIN (element)) {
|
|
element = gst_play_get_sink_element (play, element, sink_type);
|
|
if (GST_IS_ELEMENT (element))
|
|
return element;
|
|
}
|
|
else {
|
|
pads = gst_element_get_pad_list (element);
|
|
has_src = FALSE;
|
|
has_correct_type = FALSE;
|
|
while (pads) {
|
|
/* check for src pad */
|
|
if (GST_PAD_DIRECTION (GST_PAD (pads->data)) == GST_PAD_SRC) {
|
|
has_src = TRUE;
|
|
break;
|
|
}
|
|
else {
|
|
/* If not a src pad checking caps */
|
|
GstCaps *caps;
|
|
GstStructure *structure;
|
|
gboolean has_video_cap = FALSE;
|
|
gboolean has_audio_cap = FALSE;
|
|
|
|
caps = gst_pad_get_caps (GST_PAD (pads->data));
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
if (strcmp (gst_structure_get_name (structure),
|
|
"audio/x-raw-int") == 0) {
|
|
has_audio_cap = TRUE;
|
|
}
|
|
|
|
if (strcmp (gst_structure_get_name (structure),
|
|
"video/x-raw-yuv") == 0 ||
|
|
strcmp (gst_structure_get_name (structure),
|
|
"video/x-raw-rgb") == 0) {
|
|
has_video_cap = TRUE;
|
|
}
|
|
|
|
gst_caps_free (caps);
|
|
|
|
switch (sink_type) {
|
|
case GST_PLAY_SINK_TYPE_AUDIO:
|
|
if (has_audio_cap)
|
|
has_correct_type = TRUE;
|
|
break;;
|
|
case GST_PLAY_SINK_TYPE_VIDEO:
|
|
if (has_video_cap)
|
|
has_correct_type = TRUE;
|
|
break;;
|
|
case GST_PLAY_SINK_TYPE_ANY:
|
|
if ((has_video_cap) || (has_audio_cap))
|
|
has_correct_type = TRUE;
|
|
break;;
|
|
default:
|
|
has_correct_type = FALSE;
|
|
}
|
|
}
|
|
|
|
pads = g_list_next (pads);
|
|
|
|
}
|
|
|
|
if ((!has_src) && (has_correct_type))
|
|
return element;
|
|
}
|
|
|
|
elements = g_list_next (elements);
|
|
}
|
|
|
|
/* we didn't find a sink element */
|
|
|
|
return NULL;
|
|
}
|
|
|
|
GstPlay *
|
|
gst_play_new (void)
|
|
{
|
|
GstPlay *play = g_object_new (GST_TYPE_PLAY, NULL);
|
|
|
|
return play;
|
|
}
|
|
|
|
/* =========================================== */
|
|
/* */
|
|
/* Object typing & Creation */
|
|
/* */
|
|
/* =========================================== */
|
|
|
|
GType
|
|
gst_play_get_type (void)
|
|
{
|
|
static GType play_type = 0;
|
|
|
|
if (!play_type) {
|
|
static const GTypeInfo play_info = {
|
|
sizeof (GstPlayClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) gst_play_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstPlay),
|
|
0,
|
|
(GInstanceInitFunc) gst_play_init,
|
|
NULL
|
|
};
|
|
|
|
play_type = g_type_register_static (GST_TYPE_PIPELINE, "GstPlay",
|
|
&play_info, 0);
|
|
}
|
|
|
|
return play_type;
|
|
}
|