gstreamer/tests/mp1vid.c

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