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code cleanup and make it work
Original commit message from CVS: code cleanup and make it work
This commit is contained in:
Thomas Vander Stichele
parent
a15c1a4af2
commit
0bb8c8b7f7
2 changed files with 42 additions and 58 deletions
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@ -79,8 +79,13 @@
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</para>
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<programlisting>
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/* example-begin threads.c */
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#include <gst/gst.h>
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/* we set this to TRUE right before gst_main (), but there could still
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be a race condition between setting it and entering the function */
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gboolean can_quit = FALSE;
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/* eos will be called when the src element has an end of stream */
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void
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eos (GstElement *src, gpointer data)
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@ -91,18 +96,18 @@ eos (GstElement *src, gpointer data)
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/* stop the bin */
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gst_element_set_state (GST_ELEMENT (thread), GST_STATE_NULL);
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while (!can_quit) /* waste cycles */ ;
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gst_main_quit ();
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}
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int
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main (int argc, char *argv[])
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{
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GstElement *filesrc, *audiosink;
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GstElement *pipeline;
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GstElement *filesrc, *decoder, *audiosink;
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GstElement *thread;
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if (argc != 2) {
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g_print ("usage: %s <filename>\n", argv[0]);
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if (argc < 2) {
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g_print ("usage: %s <Ogg/Vorbis filename>\n", argv[0]);
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exit (-1);
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}
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@ -112,10 +117,6 @@ main (int argc, char *argv[])
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thread = gst_thread_new ("thread");
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g_assert (thread != NULL);
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/* create a new bin to hold the elements */
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pipeline = gst_pipeline_new ("pipeline");
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g_assert (pipeline != NULL);
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/* create a disk reader */
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filesrc = gst_element_factory_make ("filesrc", "disk_source");
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g_assert (filesrc != NULL);
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@ -123,42 +124,33 @@ main (int argc, char *argv[])
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g_signal_connect (G_OBJECT (filesrc), "eos",
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G_CALLBACK (eos), thread);
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/* create an ogg decoder */
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decoder = gst_element_factory_make ("vorbisfile", "decoder");
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g_assert (decoder != NULL);
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/* and an audio sink */
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audiosink = gst_element_factory_make ("audiosink", "play_audio");
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audiosink = gst_element_factory_make ("osssink", "play_audio");
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g_assert (audiosink != NULL);
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/* add objects to the main pipeline */
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gst_bin_add (GST_BIN (pipeline), filesrc);
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gst_bin_add (GST_BIN (pipeline), audiosink);
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/* automatically setup the pipeline */
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if (!gst_pipeline_autoplug (GST_PIPELINE (pipeline))) {
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g_print ("unable to handle stream\n");
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exit (-1);
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}
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/* remove the source element from the pipeline */
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gst_bin_remove (GST_BIN (pipeline), filesrc);
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/* insert the source element in the thread, remember a thread needs at
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least one source or connection element */
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gst_bin_add (GST_BIN (thread), filesrc);
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/* add the pipeline to the thread too */
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gst_bin_add (GST_BIN (thread), GST_ELEMENT (pipeline));
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/* add objects to the thread */
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gst_bin_add_many (GST_BIN (thread), filesrc, decoder, audiosink, NULL);
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/* connect them in the logical order */
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gst_element_connect_many (filesrc, decoder, audiosink, NULL);
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/* start playing */
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gst_element_set_state (GST_ELEMENT (thread), GST_STATE_PLAYING);
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/* do whatever you want here, the thread will be playing */
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...
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g_print ("thread is playing\n");
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can_quit = TRUE;
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gst_main ();
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gst_pipeline_destroy (thread);
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exit (0);
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}
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/* example-end threads.c */
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</programlisting>
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</chapter>
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@ -79,8 +79,13 @@
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</para>
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<programlisting>
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/* example-begin threads.c */
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#include <gst/gst.h>
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/* we set this to TRUE right before gst_main (), but there could still
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be a race condition between setting it and entering the function */
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gboolean can_quit = FALSE;
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/* eos will be called when the src element has an end of stream */
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void
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eos (GstElement *src, gpointer data)
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@ -91,18 +96,18 @@ eos (GstElement *src, gpointer data)
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/* stop the bin */
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gst_element_set_state (GST_ELEMENT (thread), GST_STATE_NULL);
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while (!can_quit) /* waste cycles */ ;
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gst_main_quit ();
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}
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int
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main (int argc, char *argv[])
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{
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GstElement *filesrc, *audiosink;
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GstElement *pipeline;
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GstElement *filesrc, *decoder, *audiosink;
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GstElement *thread;
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if (argc != 2) {
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g_print ("usage: %s <filename>\n", argv[0]);
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if (argc < 2) {
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g_print ("usage: %s <Ogg/Vorbis filename>\n", argv[0]);
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exit (-1);
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}
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@ -112,10 +117,6 @@ main (int argc, char *argv[])
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thread = gst_thread_new ("thread");
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g_assert (thread != NULL);
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/* create a new bin to hold the elements */
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pipeline = gst_pipeline_new ("pipeline");
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g_assert (pipeline != NULL);
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/* create a disk reader */
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filesrc = gst_element_factory_make ("filesrc", "disk_source");
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g_assert (filesrc != NULL);
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@ -123,42 +124,33 @@ main (int argc, char *argv[])
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g_signal_connect (G_OBJECT (filesrc), "eos",
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G_CALLBACK (eos), thread);
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/* create an ogg decoder */
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decoder = gst_element_factory_make ("vorbisfile", "decoder");
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g_assert (decoder != NULL);
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/* and an audio sink */
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audiosink = gst_element_factory_make ("audiosink", "play_audio");
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audiosink = gst_element_factory_make ("osssink", "play_audio");
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g_assert (audiosink != NULL);
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/* add objects to the main pipeline */
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gst_bin_add (GST_BIN (pipeline), filesrc);
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gst_bin_add (GST_BIN (pipeline), audiosink);
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/* automatically setup the pipeline */
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if (!gst_pipeline_autoplug (GST_PIPELINE (pipeline))) {
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g_print ("unable to handle stream\n");
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exit (-1);
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}
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/* remove the source element from the pipeline */
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gst_bin_remove (GST_BIN (pipeline), filesrc);
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/* insert the source element in the thread, remember a thread needs at
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least one source or connection element */
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gst_bin_add (GST_BIN (thread), filesrc);
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/* add the pipeline to the thread too */
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gst_bin_add (GST_BIN (thread), GST_ELEMENT (pipeline));
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/* add objects to the thread */
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gst_bin_add_many (GST_BIN (thread), filesrc, decoder, audiosink, NULL);
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/* connect them in the logical order */
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gst_element_connect_many (filesrc, decoder, audiosink, NULL);
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/* start playing */
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gst_element_set_state (GST_ELEMENT (thread), GST_STATE_PLAYING);
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/* do whatever you want here, the thread will be playing */
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...
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g_print ("thread is playing\n");
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can_quit = TRUE;
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gst_main ();
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gst_pipeline_destroy (thread);
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exit (0);
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}
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/* example-end threads.c */
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</programlisting>
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</chapter>
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