[AG-DEV] Transcoding DVTS streams?

[Andrew Rowley]

Hi,

 

FFMpeg can decode dv streams I believe.  What it probably can't do is depacketize DV/RTP streams.  I would have thought that it would be relatively easy to add this support though.

 

I am currently writing a tool that essentially converts between standard video formats (e.g. avi, mpeg) and AG RTP formats.  Although this is a transcode between two RTP formats, I would still expect the tool to be able to handle it if I can implement DV/RTP depacketizing (which looks fairly trivial).  I will try to implement this support as the tool development progresses and let you know if I get anything working.

 

Andrew :-)

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   Andrew G D Rowley
   Senior Development Officer

   Research Computing Services
   The University of Manchester
   Devonshire House, Oxford Road
   Manchester, M13 9PL

   t :  +44 (0) 161 275 0685
   e :  Andrew.Rowley at manchester.ac.uk
   w :  www.manchester.ac.uk/researchcomputing

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________________________________

From: ag-dev-bounces at lists.mcs.anl.gov [mailto:ag-dev-bounces at lists.mcs.anl.gov] On Behalf Of Andrew Ford
Sent: 24 November 2009 22:11
To: wg-multicast at internet2.edu; ag-dev at mcs.anl.gov
Cc: asaeda at sfc.wide.ad.jp
Subject: [AG-DEV] Transcoding DVTS streams?

 

Hi,

Has anyone attempted or found a way to transcode a DVTS stream directly off of receiving it via multicast? My goal is to be able to transcode DVTS streams to different formats and resend them as Access Grid-based or web-based streams. So far, it looks like the only way to do it would be to modify xdvshow or one of the other DVTS apps to hook together with ffmpeg for transcoding & ffserver for streaming, since as far as I can tell, apps like ffmpeg or VLC can't receive DVTS by themselves. Before I go spending a bunch of time on that I want to make sure this hasn't already been done some other way.

Thanks,
--Andrew

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