[FFmpeg-devel] [PATCH v7] Improved the performance of 1 decode + N filter graphs and adaptive bitrate.

Michael Niedermayer michael at niedermayer.cc
Sat Mar 23 00:01:13 EET 2019


On Fri, Mar 22, 2019 at 04:24:10PM +0000, Wang, Shaofei wrote:
> > -----Original Message-----
> > From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of
> > Michael Niedermayer
> > Sent: Friday, March 22, 2019 8:14 AM
> > To: FFmpeg development discussions and patches <ffmpeg-devel at ffmpeg.org>
> > Subject: Re: [FFmpeg-devel] [PATCH v7] Improved the performance of 1
> > decode + N filter graphs and adaptive bitrate.
> > 
> > This changes the output for some cases like:
> > 
> > ./ffmpeg -y -i mm-short.mpg -flags +aic -qscale 2 -vcodec h263p -t 1  -qscale
> > 10 old.avi
> > 
> > -rw-r----- 1 michael michael 86434 Mar 22 01:07 new.avi
> > -rw-r----- 1 michael michael 86402 Mar 22 01:07 old.avi
> > 
> > i assume this is unintended
> > 
> thanks
> tested several rounds which not reproduced
> what's the resolution of "mm-short.mpg"? it could not be very accurated in terms of fps with the option "-t 1" which may bring a little bit more or less output stream.

mm-short should simply be the first 2048000 bytes of matrixbench_mpeg2.mpg

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I have often repented speaking, but never of holding my tongue.
-- Xenocrates
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