[FFmpeg-devel] [PATCH v2] Add "sar" alias to "aspect" option of video encoders

Carl Eugen Hoyos ceffmpeg at gmail.com
Mon Aug 8 22:41:06 EEST 2016

2016-08-08 20:58 GMT+02:00 Andrey Utkin <andrey_utkin at fastmail.com>:
> On Thu, Jul 14, 2016 at 05:27:08PM +0000, Carl Eugen Hoyos wrote:
>> Andrey Utkin <andrey_utkin <at> fastmail.com> writes:
>> > It is impossible to pass "aspect" parameter to encoder from ffmpeg
>> > CLI because option from lavc/options_table.h is eclipsed by option
>> > with same name in ffmpeg_opt.c, which has different meaning (DAR,
>> > not SAR).
>> Wasn't the old behaviour intended because it assured you cannot
>> pass contradicting options to the libraries via ffmpeg?
> I don't think so.
> Proper way to avoid contradiction is explicit check in code.

Where can this be checked?

> It is a usability flaw to be unable to pass certain encoder option in
> CLI while all other are passed finely.

But in which situation (which command line) could you not set the
aspect correctly before your patch?

Carl Eugen

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