[FFmpeg-devel] 16:9 DV AVI not detected

[Michael Niedermayer]

On Tue, Jan 01, 2008 at 02:25:31PM +0100, Dominik 'Rathann' Mierzejewski wrote:
> On Monday, 31 December 2008 at 21:57, Roman Shaposhnik wrote:
> > On Dec 31, 2007, at 11:21 AM, Michael Niedermayer wrote:
> > 
> > > On Sun, Dec 30, 2007 at 09:13:33PM -0800, Roman Shaposhnik wrote:
> > >> On Dec 30, 2007, at 7:23 AM, j at v2v.cc wrote:
> > >>
> > >>> 16:9 ntsc avi dv files exported with Adobe Premiere,
> > >>> the aspect ratio is not properly detected. it is always
> > >>> set to 1:1. what would be the right place to fix this?
> > >>>
> > >>> the only place i could find that sets sample_aspect_ratio
> > >>> is dv_extract_video_info in libavformat/dv.c
> > >>> dont see this used for avi files...
> > >>
> > >>    I bet the problem is -- AVI container not signaling the
> > >> aspect ratio properly. It's been a problem for broken
> > >> application all along. It's a pity if Adobe Premiere
> > >> happens to be among a broken bunch.
> > >
> > > avi has no field for aspect ratios (or at least not last time i looked
> > > at the specs ...)
> > 
> >    You know what -- you're right. I guess I was thinking about .mov
> > (or may be not thinking at all -- you know, Russian New Year  and
> > stuff ;-)).
> 
> ODML AVI does have such field AFAIR. Question is, does Adobe Premiere
> support that?

i dunno, but i just implemented parsing that ODML aspect ratio in our demuxer
so maybe the problem is fixed ...

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I count him braver who overcomes his desires than him who conquers his
enemies for the hardest victory is over self. -- Aristotle
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