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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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e5ab7f33ac
Original commit message from CVS: A first attempt to fix the queues in a cothreaded pipeline. Some fixes to the thread handling. Fix a bug in gstreamer-config : gthread was not included. gst_bin_create_plan() is now done in the READY state. a bin with only another bin in it will now work with gst_bin_iterate. Added some examples for the queues.
81 lines
2 KiB
C
81 lines
2 KiB
C
#include <gst/gst.h>
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gboolean playing;
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/* eos will be called when the src element has an end of stream */
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void eos(GstSrc *src, gpointer data)
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{
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g_print("have eos, quitting\n");
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playing = FALSE;
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}
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int main(int argc,char *argv[])
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{
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GstElement *disksrc, *audiosink, *queue;
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GstElement *pipeline;
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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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exit(-1);
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}
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gst_init(&argc,&argv);
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/* create a new thread to hold the elements */
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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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disksrc = gst_elementfactory_make("disksrc", "disk_source");
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g_assert(disksrc != NULL);
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gtk_object_set(GTK_OBJECT(disksrc),"location", argv[1],NULL);
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gtk_signal_connect(GTK_OBJECT(disksrc),"eos",
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GTK_SIGNAL_FUNC(eos), thread);
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queue = gst_elementfactory_make("queue", "queue");
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/* and an audio sink */
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audiosink = gst_elementfactory_make("audiosink", "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_pipeline_add_src(GST_PIPELINE(pipeline), disksrc);
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gst_pipeline_add_sink(GST_PIPELINE(pipeline), queue);
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gst_bin_add(GST_BIN(thread), audiosink);
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gst_pad_connect(gst_element_get_pad(queue,"src"),
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gst_element_get_pad(audiosink,"sink"));
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gst_pad_set_type_id(gst_element_get_pad(queue, "sink"),
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gst_pad_get_type_id(gst_element_get_pad(audiosink, "sink")));
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if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
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g_print("cannot autoplug pipeline\n");
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exit(-1);
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}
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gst_bin_add(GST_BIN(pipeline), thread);
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/* make it ready */
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gst_element_set_state(GST_ELEMENT(pipeline), GST_STATE_READY);
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/* start playing */
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gst_element_set_state(GST_ELEMENT(pipeline), GST_STATE_PLAYING);
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playing = TRUE;
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while (playing) {
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gst_bin_iterate(GST_BIN(pipeline));
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}
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gst_element_set_state(GST_ELEMENT(pipeline), GST_STATE_NULL);
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exit(0);
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}
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