[FFmpeg-devel] [PATCH v3] ffmpeg CLI multithreading

Anton Khirnov anton at khirnov.net
Thu Dec 7 12:52:47 EET 2023


Quoting Michael Niedermayer (2023-12-06 21:21:55)
> On Wed, Dec 06, 2023 at 11:27:06AM +0100, Anton Khirnov wrote:
> > Hi,
> > this should hopefully be the last version of this set. If nobody has new
> > comments, I will push it in a few days.
> 
> I have a case that becomes really non deterministic
> 
> for i in `seq 10` ; do ./ffmpeg -v 0 -bitexact -i mszh-zlib/monika_zlib.avi -bitexact  -t 1  -f crc - ; done
> CRC=0x52e2e323
> CRC=0x747761ba
> CRC=0x747761ba
> CRC=0x52e2e323
> CRC=0x9d872a4b
> CRC=0x5f5cacfd
> CRC=0xda55c458
> CRC=0x2eccf1c8
> CRC=0x747761ba
> CRC=0x1a4775bd
> 
> sample from here probably: https://samples.ffmpeg.org/V-codecs/mszh-zlib/
> 
> before:
> 
> for i in `seq 10` ; do ./ffmpeg -v 0 -bitexact -i mszh-zlib/monika_zlib.avi -bitexact  -t 1  -f crc - ; done
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994
> CRC=0x192dc994

Should now be fixed in my git tree.

-- 
Anton Khirnov


More information about the ffmpeg-devel mailing list