Edward Hervey wrote
> Is it possible to avoid decoding and pause just at the demuxing and
> discovering elementary stream formats?
Set the caps property of the gnlfilesource to the format you want
(ex : video/mpeg,mpegversion=2 for mpeg2 video)
Have quickly created a small test program in C - same thing, it doesn't work, "pad-added" signal handler is not called, if I set "caps" property;
#include <stdio.h>
#include <stdlib.h>
#include <gst/gst.h>
static void pad_added (GstPadTemplate * templ, GstPad * newpad, gpointer data)
{
g_print("pad_added");
return;
}
gboolean bus_call(GstMessage *msg)
{
switch(GST_MESSAGE_TYPE(msg)){
case GST_MESSAGE_EOS:
GST_INFO("eos");
return FALSE;
case GST_MESSAGE_ERROR:{
GError *err;
gchar *debug;
gst_message_parse_error (msg, &err, &debug);
GST_ERROR ("Error: %s", err->message);
g_error_free (err);
if (debug) {
GST_ERROR ("Debug deails: %s", debug);
g_free (debug);
}
}
return FALSE;
default:
GST_DEBUG("message %s(%d) from %s",GST_MESSAGE_TYPE_NAME(msg),GST_MESSAGE_TYPE(msg),GST_MESSAGE_SRC_NAME(msg));
return TRUE;
}
}
int main(int argc,char *argv[])
{
GstElement *pipeline;
GstBus *bus;
GstElement *comp;
GstElement *filesource1;
GstElement *filesource2;
GstElement *asink;
GstElement *vsink;
gst_init(&argc,&argv);
pipeline = gst_pipeline_new("pipeline");
bus = gst_pipeline_get_bus(pipeline);
comp = gst_element_factory_make("gnlcomposition","compbin");
g_signal_connect(G_OBJECT(comp),"pad-added",pad_added,NULL);
asink = gst_element_factory_make("fakesink","asink");
vsink = gst_element_factory_make("fakesink","vsink");
gst_bin_add(GST_BIN(pipeline),comp);
gst_bin_add(GST_BIN(pipeline),asink);
gst_bin_add(GST_BIN(pipeline),vsink);
filesource1=gst_element_factory_make("gnlfilesource","fr1");
g_object_set(G_OBJECT(filesource1),"location","file:///home/wl/AVIK/video/10.mpg",
//"caps",gst_caps_from_string("video/mpeg,mpegversion=2"),
"start",5*GST_MSECOND,
"duration",5*GST_MSECOND,
"media-start",0,
"media-duration",5*GST_MSECOND,
NULL);
gst_bin_add(GST_BIN(comp),filesource1);
filesource2=gst_element_factory_make("gnlfilesource","fr2");
g_object_set(G_OBJECT(filesource1),"location","file:///home/wl/AVIK/video/10.mpg",
//"caps",gst_caps_from_string("video/mpeg,mpegversion=2"),
"start",125*GST_MSECOND,
"duration",5*GST_MSECOND,
"media-start",5,
"media-duration",5*GST_MSECOND,
NULL);
gst_bin_add(GST_BIN(comp),filesource2);
gst_element_set_state(pipeline,GST_STATE_PLAYING);
while(1){
GstMessage *msg=gst_bus_pop(bus);
gboolean r;
if(msg!=NULL)
r=bus_call(msg);
gst_message_unref(msg);
if(!r)
break;
}
return EXIT_SUCCESS;
}
Locked
