[MPlayer-dev-eng] [PATCH] mov fragments support for demux_mov

[David Romacho Rosell]

Hi all,

This is my second attempt to have this patch revised. This patch adds 
support for movie fragments in mov files (as specified in the 
ISO/IEC-14496). The changes only affect the libmpdemux/demux_mov.c file. 
This feature is not supported by the libavformat demuxer.

Regarding the size of the patch, I would like to list all the new 
features that this patch adds:

   - Support for multiple 'mdat' atoms.
   - 'mvex','mehd' and 'trex' atoms parsing. Those atoms, which are 
located inside the 'moov' atom, warn about presence of movie fragments 
that extend one or several tracks.

   - Support for 'moof' atoms (header for each movie fragment). It 
includes 'mfhd','traf','tfhd' and 'trun' atoms which are contained 
inside the 'moof'.

   - Support for 'mfra' atoms that contain movie fragment random access 
information (using 'tfra' and mfro' atoms). 

This patch reads and adds the movie fragment information to each present 
track. New functionality is implemented in new functions that parse the 
content of the mentioned atoms and rebuild sample indexes. The lschunks 
function only suffers minor changes.

I put some effort to have this new functionality working and it would be 
nice to see it included in the MPlayer source code. I hope someone will 
think that it is useful and will spend some time reviewing it.

Greetings,

David
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