Re: [gst-devel] problem playing video file with this sample code

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see gst-plugins-base/docs/design/design-decodebin.txt.
It might be helpful.

Thanks,
Pavan.

>From: "sanjay kumar gupta" <san...@re...>
>Reply-To: sanjay kumar gupta <san...@re...>
>To: gst...@li...
>Subject: [gst-devel] problem playing video file with this sample code
>Date: 20 Dec 2006 13:22:05 -0000
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>
>Hi all,
>  I have written the simple code for playing audio/video files using 
>decodebin.
>Idea of creating the pipeline is as follows:
>/-----------------------
>1. created the elements filesrc and decodebin. Added & Linked these 
>elements to pipeline and subscribed for callback cb_newpad() with decodebin 
>element.
>2. created the elements audioconvert and alsasink and added these elements 
>to audio bin with ghostpad. (this audio bin is not yet added in the 
>pipeline)
>3. created the element xvimagesink and added this element to video bin with 
>ghostpad. (this video bin is not yet added in the pipeline)
>4. Now setting the pipeline (with partial elements in step 1) to running 
>state.
>4. When getting callback cb_newpad() for pad with mime type "audio/*" then 
>adding the audio bin to pipeline, linking the ghostpad of audio bin with 
>this new pad.
>  Once it is added and linked in pipeline, I am synchronizing the state of 
>audio bin with pipeline state using following function:
>  gst_element_sync_state_with_parent (audiobin);
>4. When getting callback cb_newpad() for pad for mime type "video/*" then 
>adding the video bin to pipeline, linking the ghostpad of video bin with 
>this new pad.
>  Once it is added and linked in pipeline, I am synchronizing the state of 
>video bin with pipeline (parent of video bin) state using following 
>function:
>  gst_element_sync_state_with_parent (videobin);
>/------------------------------
>
>When  I am trying to play audio file (only audio stream) or video file 
>without audio (only video stream) then this code is perfectly working.
>but facing problem when file contain both audio and video stream.
>It sometime plays perfectly but sometime I am getting EOS (end of stream) 
>notification immediately.
>what is the reason for this behavior.
>I tried to use the following pipeline from command line. it always worked 
>fine:
>$gst-launch-0.10 filesrc location=soccer.avi ! decodebin name="decodebin" 
>decodebin.! xvimagesink decodebin.! audioconvert ! alsasink
>Code is attached in this mail.
>Can someone please point out where could be the problem & please suggest 
>the necessary changes needed?
>Any help would be appreciated.
>Thanks in advance.
>
>Regards,
>Sanjay
>
>*********************************
>   Sanjay Kumar Gupta
>   Motorola India Elecronics Ltd.,
>   "TSR Towers",H.No. 6-3-1090,
>   Somajiguda, Raj Bhavan Road,
>   Hyderabad-500082.
>   Email: sa...@mo...
>*********************************

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