[FFmpeg-devel] matroska file hits eof on any seek

Pavel Koshevoy pkoshevoy at gmail.com
Sat Feb 18 09:52:36 CET 2012

On 2/18/2012 1:35 AM, Pavel Koshevoy wrote:
> I am not sure if you are referring to CodecPrivate data or not, but I 
> believe that in matroska it is an AVC Decoder Configuration Record 
> (from ISO/IEC
> 14496-15), it includes an SPS and PPS, but does not include SEI.  
> Also, this file does not use matroska header stripping for frame 
> compression, so it isn't there either.
> I don't believe this is an intra-only coded file.  According to ldecod 
> there are mostly P, B, and b slices, with an IDR slice thrown in 
> periodically.

I have to correct myself.  When you said intra refresh -- I though 
intra-only coded files.  Of course those are two different things.  
Intra refresh does not require IDR slices, but it does require SEI.  So, 
this broken mkv file could have used intra refresh, but I don't think it 
does because SEIs aren't there.


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