[MPlayer-dev-eng] Misrepresented 'cmov' Chunks

Arpi arpi at thot.banki.hu
Sun Mar 10 17:53:20 CET 2002


Hi,

> > > 	I'm wondering about the best way to address this: 1) Hack up the
> > > MOV demuxer so that it takes this into account or 2) change the atoms in
> > > my MOV files and be done with it?
> > If it can be fail-proof detected, modify the demuxer to autodetect if
> > headers are compressed.
> 
> 	I'll see what I can come up with. I was thinking of modifying the
> demuxer so that it would treat moov atoms as cmov atoms and attempt to
> decompress them. If the decompression operation fails, assume it was a
> regular moov atom to begin with. This assumes that it's possible to fail
> the decompression operation (it has a CRC, as I recall).

compressed headers chunk (cmov) has some internal headers telling what
compression method it uses and some other infos. they can be used for
recognizing compressed headers...


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu



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