<html> <head> <style> .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } </style> </head> <body class='hmmessage'> Hi Sangita,   I dont have necessary resources to run this code.  But, few quick observations:-   1. In the command line you have not mentioned audio decoder, but in the code you are trying to audio related stuff link.     Check if this works as per your expectations. 2. It would be good to check the return values especially for *_get_pad and *_link functions.   BR, Pavan. <BLOCKQUOTE> <HR> Date: Tue, 25 Sep 2007 12:18:19 +0000 From: sangitapithadia@gmail.com To: gstreamer-devel@lists.sourceforge.net Subject: [gst-devel] gstreamer problem Hi, I m trying to play MPEG TS using gstreamer pipeline. This is the pipeline which i have used to playback the file. It works fine. <PRE>gst-launch -v filesrc location=/root/GStremerDir/gstreamer-0.10.13/ed24p_00.ts ! ffdemux_mpegts ! ffdec_mpeg2video ! queue ! videoscale ! ffmpegcolorspace ! xvimagesink </PRE> Same thing i tried to do using the code but it doesnt play. my code is like.. <PRE>#include<stdio.h> #define SOURCE "filesrc" #define VSINK "xvimagesink" #define ASINK "alsasink" #include <stdlib.h> #include <glib.h> //#include <gtk/gtk.h> #include <gst/gst.h> #include <string.h> const gchar * location = "file:///root/GStremerDir/ed24p_00.ts"; static GList *seekable_pads = NULL; static GList *rate_pads = NULL; static GstElement *pipeline; static GList *seekable_elements = NULL; typedef struct { const gchar *padname; GstPad *target; GstElement *bin; } dyn_link; 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 *err; gst_message_parse_error (msg, &err, &debug); g_free (debug); g_print ("Error: %s\n", err->message); g_error_free (err); g_main_loop_quit (loop); break; } default: break; } } static GstElement * gst_element_factory_make_or_warn (gchar * type, gchar * name) { GstElement *element = gst_element_factory_make (type, name); if (!element) { g_warning ("Failed to create element %s of type %s", name, type); } return element; } static void dynamic_link (GstPadTemplate * templ, GstPad * newpad, gpointer data) { gchar *padname; dyn_link *connect = (dyn_link *) data; padname = gst_pad_get_name (newpad); if (connect->padname == NULL || !strcmp (padname, connect->padname)) { if (connect->bin) gst_bin_add (GST_BIN (pipeline), connect->bin); gst_pad_link (newpad, connect->target); seekable_pads = g_list_prepend (seekable_pads, newpad); rate_pads = g_list_prepend (rate_pads, newpad); } g_free (padname); } static void setup_dynamic_link (GstElement * element, const gchar * padname, GstPad * target, GstElement * bin) { dyn_link *connect; connect = g_new0 (dyn_link, 1); connect->padname = g_strdup (padname); connect->target = target; connect->bin = bin; g_signal_connect (G_OBJECT (element), "pad-added", G_CALLBACK (dynamic_link), connect); } int main(int argc,char *argv[]) { static GstElement *bin; GstBus *bus; GMainLoop *loop; GstElement *pipeline, *audio_bin, *video_bin; GstElement *src, *demux, *a_decoder, *v_decoder, *v_filter; GstElement *audiosink, *videosink; GstElement *a_queue, *v_queue, *v_scale; GstPad *seekable; GstPad *pad; gst_init (&argc, &argv); loop = g_main_loop_new (NULL, FALSE); if (argc != 2) { g_print ("Usage: %s <AVI file>\n", argv[ 0]); return -1; } pipeline = gst_pipeline_new ("app"); src = gst_element_factory_make_or_warn (SOURCE, "src"); g_object_set (G_OBJECT (src), "location", argv[1], NULL); //demux = gst_element_factory_make_or_warn ("mpegdemux", "demux"); demux = gst_element_factory_make_or_warn ("ffdemux_mpegts", "demux"); gst_bin_add (GST_BIN (pipeline), src); gst_bin_add (GST_BIN (pipeline), demux); gst_element_link (src, demux); audio_bin = gst_bin_new ("a_decoder_bin"); a_decoder = gst_element_factory_make_or_warn ("mad", "a_dec"); a_queue = gst_element_factory_make_or_warn ("queue", "a_queue"); audiosink = gst_element_factory_make_or_warn (ASINK, "a_sink"); gst_bin_add (GST_BIN (audio_bin), a_decoder); gst_bin_add (GST_BIN (audio_bin), a_queue); gst_bin_add (GST_BIN (audio_bin), audiosink); gst_element_link (a_decoder, a_queue); gst_element_link (a_queue, audiosink); gst_bin_add (GST_BIN (pipeline), audio_bin); pad = gst_element_get_pad (a_decoder, "sink"); gst_element_add_pad (audio_bin, gst_ghost_pad_new ("sink", pad)); gst_object_unref (pad); setup_dynamic_link (demux, "audio_c0", gst_element_get_pad (audio_bin, "sink"), NULL); video_bin = gst_bin_new ("v_decoder_bin"); v_decoder = gst_element_factory_make_or_warn ("mpeg2dec", "v_dec"); v_queue = gst_element_factory_make_or_warn ("queue", "v_queue"); v_scale = gst_element_factory_make_or_warn ("videoscale", "v_scale"); v_filter = gst_element_factory_make_or_warn ("ffmpegcolorspace", "v_filter"); videosink = gst_element_factory_make_or_warn (VSINK, "v_sink"); gst_bin_add (GST_BIN (video_bin), v_decoder); gst_bin_add (GST_BIN (video_bin), v_queue); gst_bin_add (GST_BIN (video_bin), v_scale); gst_bin_add (GST_BIN (video_bin), v_filter); gst_bin_add (GST_BIN (video_bin), videosink); gst_element_link (v_decoder, v_queue); gst_element_link (v_queue, v_scale); gst_element_link (v_scale, v_filter); gst_element_link (v_filter, videosink); gst_bin_add (GST_BIN (pipeline), video_bin); pad = gst_element_get_pad (v_decoder, "sink"); gst_element_add_pad (video_bin, gst_ghost_pad_new ("sink", pad)); gst_object_unref (pad); setup_dynamic_link (demux, "video_e0", gst_element_get_pad (video_bin, "sink"), NULL); /*seekable = gst_element_get_pad (v_filter, "src"); seekable_pads = g_list_prepend (seekable_pads, seekable); rate_pads = g_list_prepend (rate_pads, seekable); rate_pads = g_list_prepend (rate_pads, gst_element_get_pad (v_decoder, "sink"));*/ bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); gst_bus_add_watch (bus, bus_call, loop); gst_element_set_state (pipeline, GST_STATE_PLAYING); /* now run */ g_main_loop_run (loop); gst_element_set_state (pipeline, GST_STATE_NULL); gst_object_unref (GST_OBJECT (pipeline)); gst_object_unref (bus); exit (0); } </PRE>Can anyone tell me what can be the cause of this. Thanks in advance. </BLOCKQUOTE> <hr />Download the latest version of Windows Live Messenger NOW! <a href='http://get.live.com/en-ie/messenger/overview' target='_new'>Click here!</a></body> </html>