gstreamer/examples/mpts_test2.c

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#include <gst/gst.h>
static gboolean
bus_call (GstBus *bus,
GstMessage *msg,
gpointer data)
{
GMainLoop *loop = (GMainLoop *) data;
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_EOS:
g_print ("End of stream\n");
g_main_loop_quit (loop);
break;
case GST_MESSAGE_ERROR: {
gchar *debug;
GError *error;
gst_message_parse_error (msg, &error, &debug);
g_free (debug);
g_printerr ("Error: %s\n", error->message);
g_error_free (error);
g_main_loop_quit (loop);
break;
}
default:
break;
}
return TRUE;
}
static void
on_pad_added (GstElement *element,
GstPad *pad,
gpointer data)
{
GstPad *sinkpad;
GstElement *decoder = (GstElement *) data;
/* We can now link this pad with the vorbis-decoder sink pad */
g_print ("Dynamic pad created, linking demuxer/decoder\n");
sinkpad = gst_element_get_static_pad (decoder, "sink");
gst_pad_link (pad, sinkpad);
gst_object_unref (sinkpad);
}
#define NR_PROG 3
int main(int argc, char * argv[])
{
GMainLoop *loop;
GstElement *pipeline, *sink, *mux;
GstElement *vsrc[NR_PROG];
GstElement *asrc[NR_PROG];
GstElement *vparse[NR_PROG];
GstElement *vdemux[NR_PROG];
GstElement *aparse[NR_PROG];
GstPad *tl_pad, *pad;
GstStructure *pm;
GstBus *bus;
FILE * xml_of;
gchar vname[][60] = {
"/Users/lyang/src/res/mpts.test/mpts110.mpv",
"/Users/lyang/src/res/mpts.test/mpts120.mpv",
"/Users/lyang/src/res/mpts.test/mpts130.mpv",
"/Users/lyang/src/res/mpts.test/mpts140.mpv",
"/Users/lyang/src/res/mpts.test/mpts150.mpv",
"/Users/lyang/src/res/mpts.test/mpts160.mpv",
"/Users/lyang/src/res/mpts.test/mpts170.mpv"
};
gchar aname[][60] = {
"/Users/lyang/src/res/mpts.test/mpts113.mpa",
"/Users/lyang/src/res/mpts.test/mpts123.mpa",
"/Users/lyang/src/res/mpts.test/mpts133.mpa",
"/Users/lyang/src/res/mpts.test/mpts143.mpa",
"/Users/lyang/src/res/mpts.test/mpts153.mpa",
"/Users/lyang/src/res/mpts.test/mpts163.mpa",
"/Users/lyang/src/res/mpts.test/mpts173.mpa"
};
gchar dest_dir[60];
gchar dest_xml[60];
gint i;
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
pipeline = gst_pipeline_new ("mpeg-ts-muxer");
mux = gst_element_factory_make ("mpegtsmux", "muxer");
sink = gst_element_factory_make ("filesink", "sink");
if (!pipeline || !mux || !sink) {
g_printerr ( "Some element could not be created.\n");
return -1;
}
for(i = 0; i< NR_PROG; i++)
{
vsrc[i] = gst_element_factory_make ("filesrc", NULL);
vdemux[i] = gst_element_factory_make ("mpegpsdemux", NULL);
vparse[i] = gst_element_factory_make ("mpegvideoparse", NULL);
asrc[i] = gst_element_factory_make ("filesrc", NULL);
aparse[i] = gst_element_factory_make ("mp3parse", NULL);
if (!vsrc[i] || !vparse[i] || !vdemux[i] ||!asrc[i] || !aparse[i])
{
g_printerr ( "Some element could not be created. i=%d.\n", i);
return -1;
}
}
/* Setting paths */
for(i = 0; i< NR_PROG; i++)
{
g_object_set (G_OBJECT (vsrc[i]), "location", vname[i], NULL);
g_object_set (G_OBJECT (asrc[i]), "location", aname[i], NULL);
}
sprintf (dest_dir, "/Users/lyang/src/res/mpts.test/mpts_%02d.ts", NR_PROG);
g_object_set (G_OBJECT (sink), "location", dest_dir, NULL);
/* construct the pipeline */
gst_bin_add_many (GST_BIN (pipeline), mux, sink, NULL);
gst_element_link (mux, sink);
for(i = 0; i< NR_PROG; i++)
{
gst_bin_add_many (GST_BIN (pipeline), vsrc[i], vdemux[i], vparse[i],
NULL);
gst_element_link (vsrc[i], vdemux[i]);
g_signal_connect (vdemux[i], "pad-added", G_CALLBACK (on_pad_added),
vparse[i]);
gst_bin_add_many (GST_BIN (pipeline), asrc[i], aparse[i], NULL);
gst_element_link (asrc[i], aparse[i]);
}
/* construct the program map */
pm = gst_structure_empty_new ("program_map");
/* Program 1 */
for(i = 0; i< NR_PROG; i++)
{
/* vparse <-> mux */
tl_pad = gst_element_get_static_pad (vparse[i], "src");
if (tl_pad == NULL) {
g_printerr ("vparse[%d] src pad getting failed.\n", i);
return -1;
}
pad = gst_element_get_compatible_pad (mux, tl_pad, NULL);
gst_pad_link (tl_pad, pad);
gst_structure_set (pm,
gst_pad_get_name(pad), G_TYPE_INT, i, NULL);
gst_object_unref (GST_OBJECT (tl_pad));
gst_object_unref (GST_OBJECT (pad));
/* aparse <-> mux */
tl_pad = gst_element_get_static_pad (aparse[i], "src");
if (tl_pad == NULL) {
g_printerr ("aparse[%d] src pad getting failed.\n", i);
return -1;
}
pad = gst_element_get_compatible_pad (mux, tl_pad, NULL);
gst_pad_link (tl_pad, pad);
gst_structure_set (pm,
gst_pad_get_name(pad), G_TYPE_INT, i, NULL);
gst_object_unref (GST_OBJECT (tl_pad));
gst_object_unref (GST_OBJECT (pad));
}
/* set the program map */
g_object_set (G_OBJECT(mux), "prog-map", pm, NULL);
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (bus, bus_call, loop);
gst_object_unref (bus);
/* Write the pipeline to XML */
sprintf (dest_xml, "/Users/lyang/src/res/mpts.test/mpts_%02d.xml", NR_PROG);
xml_of = fopen (dest_xml, "w");
gst_xml_write_file (GST_ELEMENT (pipeline), xml_of);
g_print ("Now playing: %s\n", dest_dir);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
/* Run! */
g_print ("Running...\n");
g_main_loop_run (loop);
/* Out of the main loop, clean up nicely */
g_print ("Returned, stopping playback\n");
gst_element_set_state (pipeline, GST_STATE_NULL);
g_print ("Deleting pipeline\n");
gst_object_unref (GST_OBJECT (pipeline));
return 0;
}