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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
#include <string.h>
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#include <gst/gst.h>
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GstElement *audiothread;
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GstElement *audioqueue;
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GstElement *audiodecode;
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GstElement *audiosink;
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void new_pad(GstElement *parse,GstPad *pad,GstElement *pipeline) {
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if (!strncmp(gst_pad_get_name(pad), "audio_", 6)) {
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fprintf(stderr,"have audio pad\n");
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fprintf(stderr,"creating thread\n");
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audiothread = gst_elementfactory_make("thread","audiothread");
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gst_bin_add(GST_BIN(pipeline),audiothread);
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fprintf(stderr,"creating queue\n");
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audioqueue = gst_elementfactory_make("queue","audioqueue");
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gst_bin_add(GST_BIN(audiothread),audioqueue);
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gst_pad_connect(pad,gst_element_get_pad(audioqueue,"sink"));
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fprintf(stderr,"creating decoder\n");
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audiodecode = gst_elementfactory_make("mad","audiodecode");
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gst_bin_add(GST_BIN(audiothread),audiodecode);
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gst_element_connect(audioqueue,"src",audiodecode,"sink");
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fprintf(stderr,"creating esdsink\n");
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audiosink = gst_elementfactory_make("osssink","audiosink");
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gst_bin_add(GST_BIN(audiothread),audiosink);
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gst_element_connect(audiodecode,"src",audiosink,"sink");
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fprintf(stderr,"setting state to PLAYING\n");
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gst_element_set_state(audiothread,GST_STATE_PLAYING);
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fprintf(stderr,"done dealing with new audio pad\n");
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}
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}
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int main(int argc,char *argv[]) {
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GstElement *pipeline, *sourcethread, *src, *parse;
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//int i;
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gst_init(&argc,&argv);
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pipeline = gst_pipeline_new("pipeline");
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sourcethread = gst_elementfactory_make("thread","sourcethread");
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src = gst_elementfactory_make("disksrc","src");
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g_object_set(G_OBJECT(src),"location","/home/omega/media/AlienSong.mpg",NULL);
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parse = gst_elementfactory_make("mpeg1parse","parse");
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g_signal_connect(G_OBJECT(parse),"new_pad",
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G_CALLBACK(new_pad),pipeline);
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gst_bin_add(GST_BIN(sourcethread),src);
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gst_bin_add(GST_BIN(sourcethread),parse);
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gst_element_connect(src,"src",parse,"sink");
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gst_bin_add(GST_BIN(pipeline),sourcethread);
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gst_schedule_show(GST_ELEMENT_SCHED(pipeline));
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gst_element_set_state(pipeline,GST_STATE_PLAYING);
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sleep(1);
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while (1) {
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// sleep(1);
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fprintf(stderr,"setting to PAUSED\n");
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gst_element_set_state(pipeline,GST_STATE_PAUSED);fprintf(stderr,"paused... ");
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// sleep(1);
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fprintf(stderr,"setting to PLAYING\n");
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gst_element_set_state(pipeline,GST_STATE_PLAYING);fprintf(stderr,"playing.\n");
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}
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// for (i=0;i<10;i++)
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// while (1)
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// gst_bin_iterate(GST_BIN(pipeline));
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}
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