mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-29 11:40:38 +00:00
386 lines
11 KiB
C
386 lines
11 KiB
C
#include <gtk/gtk.h>
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#include "gst/gst.h"
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#include "gst/gstparse.h"
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typedef struct
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{
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GstElement *pipeline;
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GstElement *src;
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GstElement *ap_element;
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GstElement *audio_sink;
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GstElement *video_sink;
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GstElement *autobin;
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GstElement *typefind;
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GstElement *autoplugcache;
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} GstPlayInfo;
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// Global GStreamer elements
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static GstPlayInfo *info;
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void destroy( GtkWidget *widget, gpointer data )
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{
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gtk_main_quit();
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}
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static void
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gst_play_cache_empty (GstElement *element, GstElement *pipeline)
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{
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GstElement *autobin;
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GstElement *disksrc;
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GstElement *cache;
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GstElement *new_element;
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fprintf (stderr, "have cache empty\n");
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gst_element_set_state (pipeline, GST_STATE_PAUSED);
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disksrc = gst_bin_get_by_name (GST_BIN (pipeline), "disk_source");
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autobin = gst_bin_get_by_name (GST_BIN (pipeline), "autobin");
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cache = gst_bin_get_by_name (GST_BIN (autobin), "cache");
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new_element = gst_bin_get_by_name (GST_BIN (autobin), "new_element");
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gst_element_disconnect (disksrc, "src", cache, "sink");
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gst_element_disconnect (cache, "src", new_element, "sink");
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gst_bin_remove (GST_BIN (autobin), cache);
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gst_element_connect (disksrc, "src", new_element, "sink");
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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fprintf (stderr, "done with cache_empty\n");
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}
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static void
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eos(GstElement *element, GstPlayInfo *info)
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{
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printf("Got EOS signal\n");
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//gst_element_set_state( GST_ELEMENT(pipeline), GST_STATE_NULL );
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gst_element_set_state (GST_ELEMENT (info->pipeline), GST_STATE_NULL);
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//gtk_object_set (GTK_OBJECT (info->src), "offset", 0, NULL);
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}
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gboolean
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idle_func (gpointer ptr)
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{
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GstPlayInfo *info = (GstPlayInfo*) ptr;
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return gst_bin_iterate (GST_BIN (info->pipeline));
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}
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static void
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gst_play_have_type (GstElement *typefind, GstCaps *caps, GstPlayInfo *info)
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{
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GstElement *vis_bin;
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GstElement *new_element;
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GstAutoplug *autoplug;
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GstElement *autobin;
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GstElement *disksrc;
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GstElement *cache;
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GstElement *pipeline = info->pipeline;
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printf( "In gst_play_have_type()\n" );
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gst_element_set_state (pipeline, GST_STATE_PAUSED);
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disksrc = gst_bin_get_by_name (GST_BIN (pipeline), "disk_source");
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autobin = gst_bin_get_by_name (GST_BIN (pipeline), "autobin");
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cache = gst_bin_get_by_name (GST_BIN (autobin), "cache");
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// disconnect the typefind from the pipeline and remove it
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gst_element_disconnect (cache, "src", typefind, "sink");
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gst_bin_remove (GST_BIN (autobin), typefind);
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// XXXXXXXXXXX
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printf( "About to autoplug\n" );
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autoplug = gst_autoplugfactory_make ("staticrender");
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g_assert (autoplug != NULL);
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//gtk_signal_connect (GTK_OBJECT (autoplug), "new_object", GTK_SIGNAL_FUNC(gst_play_object_added), info);
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printf( "-- 1 --\n" );
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info->ap_element = gst_autoplug_to_renderers (autoplug,
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caps,
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//vis_bin,
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info->video_sink,
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info->audio_sink,
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NULL);
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printf( "-- 2 --\n" );
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if (!info->ap_element) {
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g_print ("could not autoplug, no suitable codecs found...\n");
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exit (-1);
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}
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gst_element_set_name (info->ap_element, "new_element");
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gst_bin_add (GST_BIN (autobin), info->ap_element);
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gtk_object_set (GTK_OBJECT (cache), "reset", TRUE, NULL);
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gst_element_connect (cache, "src", info->ap_element, "sink");
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// Add the "eos" handler to the main pipeline
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gtk_signal_connect( GTK_OBJECT(disksrc),"eos", GTK_SIGNAL_FUNC(eos), info);
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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#ifndef GST_DISABLE_LOADSAVE
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xmlSaveFile("xmlTest.gst", gst_xml_write (GST_ELEMENT (pipeline)));
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#endif
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}
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// Handles setting up a stream and playing
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void play( GtkWidget *widget, gpointer data )
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{
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gchar *fileName = gtk_entry_get_text( GTK_ENTRY(data) );
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printf( "In Play()\n" );
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if( info->pipeline )
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{
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GstObject *parent;
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parent = gst_element_get_parent (info->audio_sink);
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if (parent) {
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gst_object_ref (GST_OBJECT (info->audio_sink));
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gst_bin_remove( GST_BIN(parent), info->audio_sink );
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}
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parent = gst_element_get_parent (info->video_sink);
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if (parent) {
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gst_object_ref (GST_OBJECT (info->video_sink));
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gst_bin_remove( GST_BIN(parent), info->video_sink );
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}
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gst_pipeline_destroy( info->pipeline );
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}
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// Create a new pipeline
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info->pipeline = gst_pipeline_new( "pipeline" );
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// Create a disksrc
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info->src = gst_elementfactory_make( "disksrc", "disk_source" );
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// Set the location of the disksrc
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gtk_object_set( GTK_OBJECT(info->src), "location", fileName, NULL );
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gst_bin_add( GST_BIN(info->pipeline), info->src );
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// Setup a bin to store the typefind and autoplugcache elements
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info->autobin = gst_bin_new( "autobin" );
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// Create the typefind element
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info->typefind = gst_elementfactory_make( "typefind", "typefind" );
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gtk_signal_connect( GTK_OBJECT(info->typefind), "have_type",
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GTK_SIGNAL_FUNC(gst_play_have_type), info );
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// Create the autoplugcache element
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info->autoplugcache = gst_elementfactory_make( "autoplugcache", "cache" );
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gtk_signal_connect( GTK_OBJECT(info->autoplugcache), "cache_empty",
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GTK_SIGNAL_FUNC(gst_play_cache_empty), info->pipeline );
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gst_bin_add( GST_BIN(info->autobin), info->typefind );
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gst_bin_add( GST_BIN(info->autobin), info->autoplugcache );
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// Connect the autoplugcache element to the typefind element
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gst_element_connect( info->autoplugcache, "src", info->typefind, "sink" );
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gst_element_add_ghost_pad( info->autobin, gst_element_get_pad( info->autoplugcache, "sink" ), "sink" );
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// Add the autobin to the main pipeline and connect the disksrc to the autobin
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gst_bin_add( GST_BIN(info->pipeline), info->autobin );
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gst_element_connect( info->src, "src", info->autobin, "sink" );
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// Set the state to GST_STATE_PLAYING
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gst_element_set_state( GST_ELEMENT(info->pipeline), GST_STATE_PLAYING );
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gtk_idle_add( idle_func, info );
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printf( "Leaving Play()\n" );
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}
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void playMP3( GtkWidget *widget, gpointer data )
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{
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GstElement *mp3parse;
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GstElement *mpg123;
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GstElement *osssink;
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gchar *fileName;
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printf( "In playMP3()\n" );
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fileName = gtk_entry_get_text( GTK_ENTRY(data) );
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if( info->pipeline )
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{
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gst_pipeline_destroy( info->pipeline );
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}
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// Create a new pipeline
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info->pipeline = gst_pipeline_new( "pipeline" );
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// Create a disksrc
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info->src = gst_elementfactory_make( "disksrc", "disk_source" );
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// Set the location of the disksrc
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gtk_object_set( GTK_OBJECT(info->src), "location", fileName, NULL );
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gst_bin_add( GST_BIN(info->pipeline), info->src );
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mp3parse = gst_elementfactory_make( "mp3parse", "parser" );
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gst_element_connect( info->src, "src", mp3parse, "sink" );
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gst_bin_add( GST_BIN(info->pipeline), mp3parse );
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mpg123 = gst_elementfactory_make( "mpg123", "decoder" );
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gst_element_connect( mp3parse, "src", mpg123, "sink" );
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gst_bin_add( GST_BIN(info->pipeline), mpg123 );
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osssink = gst_elementfactory_make( "osssink", "audio_sink" );
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gst_element_connect( mpg123, "src", osssink, "sink" );
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gst_bin_add( GST_BIN(info->pipeline), osssink );
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// Add the "eos" handler to the main pipeline
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gtk_signal_connect( GTK_OBJECT(info->src),"eos", GTK_SIGNAL_FUNC(eos), info);
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// Set the state to GST_STATE_PLAYING
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gst_element_set_state( GST_ELEMENT(info->pipeline), GST_STATE_PLAYING );
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gtk_idle_add( idle_func, info );
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}
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// Handles stopping a playing stream and tearing down the pipeline
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void stop( GtkWidget *widget, gpointer data )
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{
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if( info->pipeline )
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gst_element_set_state( GST_ELEMENT(info->pipeline), GST_STATE_NULL );
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}
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// Handles pausing the playing stream
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/*
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void pause( GtkWidget *widget, gpointer data )
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{
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}
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*/
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int main( int argc, char *argv[] )
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{
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GtkWidget *window;
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GtkWidget *textField;
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GtkWidget *socket;
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GtkWidget *playBtn, *playMp3Btn, *stopBtn;
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GtkWidget *vbox, *hbox;
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gtk_init( &argc, &argv );
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gst_init( &argc, &argv );
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// Allocate the struct for storing GStreamer elements
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info = (GstPlayInfo*) calloc( 1, sizeof(GstPlayInfo) );
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// create an audio sink
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info->audio_sink = gst_elementfactory_make("osssink", "play_audio");
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// create a video sink
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info->video_sink = gst_elementfactory_make("xvideosink", "play_video");
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// Create a new window
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window = gtk_window_new( GTK_WINDOW_TOPLEVEL );
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gtk_widget_set_usize( GTK_WIDGET(window), 300, 400 );
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gtk_signal_connect( GTK_OBJECT(window), "delete_event",
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GTK_SIGNAL_FUNC(destroy), NULL );
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gtk_signal_connect( GTK_OBJECT(window), "destroy",
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GTK_SIGNAL_FUNC(destroy), NULL );
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gtk_container_set_border_width( GTK_CONTAINER(window), 10 );
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// Create a vertical box
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vbox = gtk_vbox_new( FALSE, 0 );
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gtk_container_add( GTK_CONTAINER(window), vbox );
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gtk_widget_show( vbox );
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// Create the socket widget
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socket = gtk_socket_new();
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gtk_box_pack_start( GTK_BOX(vbox), socket, TRUE, TRUE, 0 );
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gtk_widget_show( GTK_WIDGET(socket) );
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gtk_widget_set_usize( GTK_WIDGET(socket), 300, 300 );
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// Connect the socket widget to the xvideosink element
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gtk_widget_realize (socket);
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gtk_socket_steal( GTK_SOCKET(socket),
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gst_util_get_int_arg( (GObject*)info->video_sink, "xid" ));
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// Create the text entry widget
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textField = gtk_entry_new();
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gtk_box_pack_start( GTK_BOX(vbox), textField, TRUE, TRUE, 0 );
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gtk_widget_show( GTK_WIDGET(textField) );
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// Create a horizontal box
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hbox = gtk_hbox_new( FALSE, 0 );
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gtk_container_add( GTK_CONTAINER(vbox), hbox );
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gtk_widget_show( hbox );
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// Create the play button
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playBtn = gtk_button_new_with_label( "Play" );
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gtk_signal_connect( GTK_OBJECT(playBtn), "clicked",
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GTK_SIGNAL_FUNC(play), textField );
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gtk_box_pack_start( GTK_BOX(hbox), playBtn, TRUE, TRUE, 0 );
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gtk_widget_show( GTK_WIDGET(playBtn) );
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// Create the Play Mp3 button
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playMp3Btn = gtk_button_new_with_label( "Play Mp3" );
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gtk_signal_connect( GTK_OBJECT(playMp3Btn), "clicked",
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GTK_SIGNAL_FUNC(playMP3), textField );
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gtk_box_pack_start( GTK_BOX(hbox), playMp3Btn, TRUE, TRUE, 0 );
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gtk_widget_show( GTK_WIDGET(playMp3Btn) );
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// Create the stop button
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stopBtn = gtk_button_new_with_label( "Stop" );
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gtk_signal_connect( GTK_OBJECT(stopBtn), "clicked",
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GTK_SIGNAL_FUNC(stop), textField );
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gtk_box_pack_start( GTK_BOX(hbox), stopBtn, TRUE, TRUE, 0 );
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gtk_widget_show( GTK_WIDGET(stopBtn) );
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gtk_widget_show( window );
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gtk_main();
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return(0);
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}
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