[FFmpeg-devel] [PATCH] Set pixel aspect ratio for libxvid encoder

Thorsten Jordan tjordan
Tue Jan 15 10:51:00 CET 2008

M?ns Rullg?rd schrieb:
> Thorsten Jordan <tjordan at macrosystem.de> writes:
>> Hello,
>> The frontend to the xvid library is not setting the pixel aspect ratio,
>> so in resulting AVIs etc., aspect ratio is always 1:1. Other encoders
>> like ffmpeg2, ffmpeg4, x264-wrapper can do it.
> Remind me again why we have the xvid wrapper at all.  Yes, I know we
> can use its rate control, but that doesn't mean we also have to have
> an encoding wrapper.
I am not sure if i did understand you correctly, but are you proposing
to remove the xvid wrapper?
FFmpeg can encode mpeg4 asp itself, true, so why xvid - i haven't tested
the quality nor speed of FFmpeg's encoder and don't want to cause
flamewars but according to my experience xvid is the best mpeg4 asp
encoder around. Would be nice to have and keep the wrapper for it as

Regards, Thorsten

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