[FFmpeg-user] Bug with asymetric SAR (sample aspect ratio) ?

Ulf Zibis Ulf.Zibis at gmx.de
Sun Dec 9 00:42:13 EET 2018


Am 08.12.18 um 23:06 schrieb Paul B Mahol:
> On 12/8/18, Ulf Zibis <Ulf.Zibis at gmx.de> wrote:
>> Hi,
>> the attached JPEG is extracted with ffmpeg from a video with 704x576
>> [SAR 12:11 DAR 4:3].
>> The x/y dpi values then should be 11/12 instead 12/11.
>> The resulting JPEG now has a DAR of 1.12 instead of 1.333 (4:3).
> If you want this to be fixed provide input file, not output file.
> Use one of upload service.

I don't have such, and I don't think this is needed here. The bug should
be reproducible from any video with asymetric SAR by:

ffmpeg -ss 05:00 -t 00:01 -i in.mp4 sample%02d.jpg


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