[FFmpeg-devel] [PATCH] Function to parse Dirac sequence header

Michael Niedermayer michaelni
Fri Jan 1 22:58:01 CET 2010


On Tue, Dec 29, 2009 at 04:30:54PM +0100, Diego Biurrun wrote:
> On Mon, Dec 28, 2009 at 02:10:07AM +0100, Michael Niedermayer wrote:
> > On Wed, Nov 12, 2008 at 11:01:28PM -0500, David Conrad wrote:
> > > On Nov 12, 2008, at 10:00 PM, Anuradha Suraparaju wrote:
> > >>
> > >> This is what I am doing in my local tree.
> > >>
> > >> in ffdirac_header
> > >> -----------------
> > >>
> > >> st->need_parsing = AVSTREAM_PARSE_HEADERS;
> > >> ( This ensures that the decoder is invoked during av_find_stream_info
> > >> call)
> > >>
> > >> in ffdirac_gptopts
> > >>
> > >> if (st->codec->time_base.num && st->codec->time_base.den)
> > >> 		st->time_base = st->codec->time_base;
> > >>
> > >> It appears to be an overkill to check the codec timebase and set the
> > >> stream time base in every call to ffdirac_gptopts, but the check is
> > >> required if we don't want to decode the Dirac sequence header in
> > >> ffdirac_header.
> > >
> > > There's still the issue that the duration isn't set; this is something that 
> > > imo should be done when possible, which it is for nearly all ogg files.
> > >
> > > At any rate I made some changes in the soc tree to this function. Updated 
> > > version attached.
> > 
> > > commit b5dad233c8187289cfc674fd6a67ffdfe4734d73
> > > Author: David Conrad <davedc at Kozue.local>
> > > Date:   Wed Nov 12 22:42:47 2008 -0500
> > > 
> > >     Add a function to parse Dirac's sequence header
> > 
> > is this waiting for a review? applied? approved? rejected?
> > or in need of a maintainer? if so someone should add himself to MAINTAINERS
> > if no ffmpeg devel wants to maintain it i dont mind if someon from dirac
> > takes over maintainership of our libdirac wraper related code
> 
> Shall I mail Anuradha?  Maybe she is willing to take over maintainership.

if david doesnt want to maintain it then yes

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
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