[FFmpeg-trac] #7820(avcodec:new): AV1 Encode fails to seek and encodes corrupted frames

FFmpeg trac at avcodec.org
Sat Mar 30 12:13:33 EET 2019


#7820: AV1 Encode fails to seek and encodes corrupted frames
----------------------------------+--------------------------------------
             Reporter:  Redricks  |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avcodec   |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+--------------------------------------
 AV1 encode fails to seek and may encode corrupted frames, no such problem
 in VP9.
 {{{
 ffmpeg version N-93447-g5252d594a1 Copyright (c) 2000-2019 the FFmpeg
 developers
 ffmpeg -y -i 1.avi -c:v libaom-av1 -strict -2 -tiles 2x2 -cpu-used 8
 -threads 6 -row-mt 1 -lag-in-frames 25 -an -sn -pass 1 -f null -report -y
 NUL
 ffmpeg -y -i 1.avi -c:v libaom-av1 -strict -2 -tiles 2x2 -cpu-used 5
 -threads 6 -row-mt 1 -lag-in-frames 25 -an -sn -pass 2 -b:v 0 -crf 45
 -report -benchmark bnp1_tiles.webm
 }}}
 Source file 1:
 https://www.dropbox.com/s/ulu4n9481lgtjcu/1.avi?dl=0
 1st pass log:
 https://www.dropbox.com/s/s3tlyqqt3uai7yr/1%201st%20pass.log?dl=0
 2nd pass log:
 https://www.dropbox.com/s/1zh641w7do4ujgj/1%202nd%20pass.log?dl=0
 Output, fails to seek after 90%, corrupted frame at 30:44
 https://www.dropbox.com/s/rzpt4g145qxfh2l/bnp1_tiles.webm?dl=0

 Source file 2:
 https://www.dropbox.com/s/8a0xc8em4pc02a4/3.avi?dl=0
 1st pass log:
 https://www.dropbox.com/s/c3o0eapdh5erv3y/3%201st%20pass.log?dl=0
 2nd pass log:
 https://www.dropbox.com/s/fev5ukvehw07pd7/3%202nd%20pass.log?dl=0
 Output, corrupted frame at 31:36
 https://www.dropbox.com/s/li45os48u8de6jw/bnp3_tiles.webm?dl=0

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7820>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list