[Ffmpeg-devel] No Aspect Ratio for DV in AVI

Roman Shaposhnik rvs
Tue Jul 18 05:42:18 CEST 2006

On Mon, 2006-07-17 at 19:29 -0500, Brian Brice wrote:
> I've been trying to encode some AVI files that contain DV data with the
> 16:9 aspect ratio set.  It's never set.  All videos have 4:3 aspect
> ratio.  I've been looking in lavc/dv.c to see what's going on, and it
> seems that the "metadata" segmnet of the video frame isn't filled in,
> but it relies on the DV format mux to fill it in.  For formats such as
> Quicktime or AVI, the DV mux isn't called, so this data isn't filled in.
> Anyone have some work done on this?

  This is a well known issue of DV-in-AVI being a braindead combination.
Personally I'm not particularly interested in supporting it, but I would
welcome a clean patch.


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