<div>Hi,</div> <div> </div> <div>You need to check the return status of gst_element_link_many (videosrc, muxer, videoenc, sink, NULL); it may be a failure.</div> <div> </div> <div>You may be required to do dynamic linking between mux and decoder.</div> <div> </div> <div>-Ashwini</div> <div> </div> <div class="gmail_quote">On Wed, Aug 3, 2011 at 4:25 PM, Durga <<a href="mailto:durgas1987@gmail.com">durgas1987@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi, I have identified the below pipleine to play the video. gst-launch-0.10 -v filesrc location=/home/administrator/Desktop/Test.mp4 ! qtdemux ! ffdec_mpeg4 ! autovideosink With gst-launch i am able to play the video. I converted the pipeline to a C Code and tried to play the video but it displays the error:GStreamer General Stream Error. This is code i am using for testing. Code: #include &lt;gst/gst.h&gt; #include <glib.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; } int main (int argc, char *argv[]) { GMainLoop *loop; GstElement *pipeline, *videosrc, *colorspace, *videoenc, *videoq, *audiosrc, *conv, *audioenc, *audioq, *muxer, *sink; GstBus *bus; /* Initialisation */ gst_init ((NULL, NULL); loop = g_main_loop_new (NULL, FALSE); /* Create gstreamer elements */ pipeline = gst_pipeline_new ("audio-player"); videosrc = gst_element_factory_make ("filesrc", "videosrc"); muxer = gst_element_factory_make ("qtdemux", "mux"); videoenc = gst_element_factory_make ("ffdec_mpeg4", "videoenc"); sink = gst_element_factory_make ("autovideosink", "sink"); if (!pipeline || !videosrc || !muxer || !videoenc || !sink) { g_printerr ("One element could not be created. Exiting.\n"); return -1; } /* Set up the pipeline */ g_print ("Elements are created\n"); /* set the properties of other elements */ g_object_set (G_OBJECT (videosrc), "location", "/home/administrator/Desktop/Test.mp4", NULL); /* we add a message handler */ bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); gst_bus_add_watch (bus, bus_call, loop); gst_object_unref (bus); /* we add all elements into the pipeline */ gst_bin_add_many (GST_BIN (pipeline), videosrc, muxer, videoenc, sink, NULL); g_print ("Added all the Elements into the pipeline\n"); /* we link the elements together */ gst_element_link_many (videosrc, muxer, videoenc, sink, NULL); g_print ("Linked all the Elements together\n"); /* Set the pipeline to "playing" state*/ g_print ("Playing the video\n"); gst_element_set_state (pipeline, GST_STATE_PLAYING); /* Iterate */ 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; } Please let me know if there is any error in the code. Thanks in advance. -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/GStreamer-C-Code-to-play-video-tp3715064p3715064.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/GStreamer-C-Code-to-play-video-tp3715064p3715064.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div>