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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
#include <glib.h>
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#include <gst/gst.h>
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#include <gst/elements/gstqueue.h>
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extern gboolean _gst_plugin_spew;
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/* we don't need a lock around the application's state yet, since it's 1
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bit. as it gets more fleshed in, we'll need a lock so the callbacks
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don't screw around with state unexpectedly */
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static gboolean playing = TRUE;
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void eof(GstElement *src) {
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GST_DEBUG("have EOF\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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GstElement *pipeline;
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GstElement *decodethread;
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GstElementFactory *srcfactory;
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GstElement *src;
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GstElementFactory *decodefactory;
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GstElement *decode;
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GstElementFactory *queuefactory;
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GstElement *queue;
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GstElement *playthread;
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GstElementFactory *sinkfactory;
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GstElement *sink;
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gst_init(&argc,&argv);
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/* first create the main pipeline */
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pipeline = GST_ELEMENT(gst_pipeline_new("pipeline"));
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/* then the decode thread, source, and decoder */
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decodethread = gst_thread_new("decodethread");
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srcfactory = gst_elementfactory_find("asyncdisksrc");
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src = gst_elementfactory_create(srcfactory,"src");
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gtk_object_set(GTK_OBJECT(src),"location",argv[1],NULL);
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gst_bin_add(GST_BIN(decodethread),GST_ELEMENT(src));
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_gst_plugin_spew = TRUE;
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if (argc > 2)
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gst_plugin_load(argv[2]);
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else
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gst_plugin_load_all();
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decodefactory = gst_elementfactory_find("mpg123");
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decode = gst_elementfactory_create(decodefactory,"decode");
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gst_bin_add(GST_BIN(decodethread),GST_ELEMENT(decode));
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gst_element_add_ghost_pad(GST_ELEMENT(decodethread),
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gst_element_get_pad(decode,"src"));
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gst_pad_connect(gst_element_get_pad(src,"src"),
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gst_element_get_pad(decode,"sink"));
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/* then the play thread and sink */
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playthread = gst_thread_new("playthread");
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sinkfactory = gst_elementfactory_find("audiosink");
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sink = gst_elementfactory_create(sinkfactory,"sink");
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gst_bin_add(GST_BIN(playthread),GST_ELEMENT(sink));
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gst_element_add_ghost_pad(GST_ELEMENT(playthread),
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gst_element_get_pad(sink,"sink"));
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/* create the queue */
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queuefactory = gst_elementfactory_find("queue");
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queue = gst_elementfactory_create(queuefactory,"queue");
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/* add threads to the main pipeline */
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gst_bin_add(GST_BIN(pipeline),decodethread);
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gst_bin_add(GST_BIN(pipeline),queue);
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gst_bin_add(GST_BIN(pipeline),playthread);
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gst_pad_connect(gst_element_get_pad(decodethread,"src"),
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// gst_element_get_pad(queue,"sink"));
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// gst_pad_connect(gst_element_get_pad(queue,"src"),
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gst_element_get_pad(playthread,"sink"));
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gtk_signal_connect(GTK_OBJECT(src),"eof",
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GTK_SIGNAL_FUNC(eof),NULL);
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g_print("\nsetting up the decode thread to *NOT* thread\n");
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// gtk_object_set(GTK_OBJECT(decodethread),"create_thread",TRUE,NULL);
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gtk_object_set(GTK_OBJECT(playthread),"create_thread",FALSE,NULL);
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g_print("\neverything's built, setting it up to be runnable\n");
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gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_READY);
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g_print("\nok, runnable, hitting 'play'...\n");
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gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PLAYING);
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g_print("\niterating on %p and %p\n",decodethread,playthread);
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while (playing) {
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gst_bin_iterate(GST_BIN(playthread));
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/* buffers got wedged in the queue, unstick them */
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// while (((GstQueue *)queue)->buffers_queued)
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// gst_connection_push(GST_CONNECTION(queue));
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// gst_thread_iterate(GST_THREAD(playthread));
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// g_print("stuffed and unstuck the queue\n");
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// sleep(1);
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}
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return 0;
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}
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