[gst-devel] gstreamer- video-pgm

Thijs Vermeir thijsvermeir at gmail.com
Thu Jan 15 10:58:06 CET 2009


Hi,

On Thu, Jan 15, 2009 at 12:40:47PM +0530, vaisakh.n wrote:
> I was trying buil an application to play " mpg " file
> 
> so that in program i created elements
> are ... filesrc location=f1.mpg  , mpegdemux,  mpeg2dec , xvimagesink
> 
> are the elements i created .. by using  gst_element_factory_make ("", "");
> and linked  the elements like this .....
> if(! gst_element_link_many(Source,MPG_Demux, MPG_Decod,Video_Sink ,NULL) )
> {
> /* but its goes here */
> /* error in linking * /
> }
> 
> i found that error is in linking in between MPG_Demux and MPG_Decod ..
> why its so???

Demuxers have most of the time dynamic pads. You need to link them in a
callback function and not with gst_element_link(_many), like in the
hello world example [1].

Gr,
Thijs

[1] http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-helloworld.html

> 
> help me
> 
> thanks in advance
> 
> 
> 
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