[FFmpeg-devel] [PATCH] Add a parser for DNET (byte-swapped AC3).

[Kostya]

On Wed, Mar 02, 2011 at 08:12:15PM +0000, M?ns Rullg?rd wrote:
> Reimar D?ffinger <Reimar.Doeffinger at gmx.de> writes:
> 
> > Currently we simply byte-swap DNET directly in the Real demuxer,
> > however this is not generally possible/correct since which two bytes we
> > need to swap depends on whether the header starts on an even or an odd
> > byte.
> > Not useful on its own within FFmpeg, but could e.g. be used together
> > with a byte-swap bitstream filter or a modified AC3-decoder to implement
> > more robust DNET support.
> 
> Where does the name DNET come from?
> 
> > @@ -390,6 +390,7 @@ enum CodecID {
> >      CODEC_ID_BINKAUDIO_DCT,
> >      CODEC_ID_AAC_LATM,
> >      CODEC_ID_QDMC,
> > +    CODEC_ID_DNET,
> 
> I don't think a new codec ID is called for.  Couldn't it be handled the
> same way as byte-swapped DTS?

I think it can and should - and there's AC3-in-WAV too to be supported.