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

[Richard Buteau]

The other option to preserve 2:1 ratio between linesize[0] and linesize[1]/linesize[2]
Is to align linesize[1] and linesize[2] on 8 bytes that would be slower no?
What would you recommend?
Richard

-----Original Message-----
From: ffmpeg-devel-bounces at mplayerhq.hu [mailto:ffmpeg-devel-bounces at mplayerhq.hu] On Behalf Of M?ns Rullg?rd
Sent: Tuesday, September 21, 2010 12:30 PM
To: FFmpeg development discussions and patches
Subject: Re: [FFmpeg-devel] [PATCH3/3] avfilter YUV aligment 32 bytesaligment for Y only and 16 bytes for UV.

"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.

-- 
M?ns Rullg?rd
mans at mansr.com
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel at mplayerhq.hu
https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-devel