On Tue, 2009-06-02 at 15:31 +0530, deepak chaudhari wrote:
> Hello All ,
>
> I am prototyping client server streaming using Gstreamer.
> Using gst-launch it works fine.
>
> I am constructing same elements in my code as follows :
>
> /* create elements */
> pipeline = gst_pipeline_new ("mpeg--rtp-player");
>
> source = gst_element_factory_make ("rtspsrc", "rtsp-source");
>
> rtpdepay = gst_element_factory_make ("rtpmp4vdepay",
> "rtpmp4v-depay");
>
> decoder = gst_element_factory_make ("ffdec_mpeg4", "mpeg-decoder");
>
> sink = gst_element_factory_make ("xvimagesink", "video-output");
>
> if (!pipeline || !source || !rtpdepay || !decoder || !sink) {
> g_print ("\nOne element could not be created\n");
> return -1;
> }
>
> /* put all elements in a bin */
> gst_bin_add_many (GST_BIN (pipeline),source, rtpdepay, decoder,
> sink, NULL);
>
> gst_element_link (source,rtpdepay);
> gst_element_link_many (decoder, sink, NULL);
>
> It is showing Internal data flow error,this error comes if we
> construct wrong pipeline, please help me out where I am doing
> mistake.
You can't link rtspsrc to the depayloader (if you check the result code,
you will see that you have an error). See gst-inspect rtspsrc you will
see that there are dynamic pads on rtspsrc. Read the manual about
dynamic pads to fix your problem.
Wim
> --
> Regards,
> Deepak Chaudhari
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