[FFmpeg-devel] [PATCH] Detect DTS in wav (issue70) + about?ac3-in-wav

[Michael Niedermayer]

On Thu, Jul 22, 2010 at 09:35:07PM +0300, Anssi Hannula wrote:
> Michael Niedermayer kirjoitti torstai, 22. hein?kuuta 2010 14:58:02:
> > On Thu, Jul 22, 2010 at 02:57:43AM -0700, Kieran Kunhya wrote:
> > > >   o All the ac3-in-wav files (at least all I have)
> > > > seem to have 8 bytes before
> > > >     every ac3 frame: 72 f8 1f 4e 01 00 10 57. I
> > > > guess this case can be added
> > > >     to the probe (either checking the byte values
> > > > or not).
> > > 
> > > That's a SPDIF Preamble, which consists of a startcode and some data
> > > fields.
> 
> I had a feeling someone might recognise it :)
> 
> > so i guess this should be handled through a spdif demuxer?
> 
> IMO that would be preferable, that would take care of all the endianness & 
> padding stuff.
> 
> So, add another case to the needs-chained-demuxers list :)

that one will likely work if the spdif demuxer just tries to demux
the file and is a bit tolerant in terms of random junk at the begin

[...9
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Frequently ignored awnser#1 FFmpeg bugs should be sent to our bugtracker. User
questions about the command line tools should be sent to the ffmpeg-user ML.
And questions about how to use libav* should be sent to the libav-user ML.
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