[FFmpeg-devel] [PATCH3/3] avfilter YUV aligment 32 bytesaligment for Y only and 16 bytes for UV.

Måns Rullgård mans
Tue Sep 21 21:43:30 CEST 2010

"Richard Buteau" <rbuteau at rgbnetworks.com> writes:

>> "Richard Buteau" <rbuteau at rgbnetworks.com> writes:
>>> Hi all,
>>> Some encoder don't support linesize[] that aren't multiple. As an
>>> example they expect 720/360/360 for yuv image or 732/368/368.
>>> the avfilter align all linesize on 16 byte, this make a yuv 720/368/368.
>>> 720 isn't a multiple of 368.
>>> I added alignment on 32bytes for Y only so it's always 732/368/368
>> Why?  Nothing requires alignment greater than 16.  If something did,
>> this patch would be the wrong way to fix it.
> The other option to preserve 2:1 ratio between linesize[0] and
> linesize[1]/linesize[2]

What makes you believe such a requirement exists?

Also, don't top-post and do quote properly.

M?ns Rullg?rd
mans at mansr.com

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