[FFmpeg-user] Ffmpeg + VAAPI on Polaris GPU not recovering after corrupt video
teeedubb at gmail.com
Sun Jan 23 08:02:59 EET 2022
After receiving confirmation of the same behaviour from 2 people with
polaris hardware so I have submitted a bug report.
On 02/12/2021 9:12 pm, Tom W wrote:
> Hi All,
> I have been experiencing heavy artifacting in dvb-t live TV streams
> after corruption in videos with ffmpeg + vaapi + AMD polaris GPU
> (rx560). The video in question is a live TV stream and I am able to
> reproduce the issue when the recording is played from a local
> harddisk. The issue occurs in linux and windows, in kodi, vlc and
> ffplay and the videos recover OK when played on nvidia and intel gpu's
> on both windows and linux. The video plays ok if I disable vaapi (most
> of my testing is done in linux).
> I have tried updating mesa to the current release, using a 5.15 kernel
> and tried various operating systems (manjaro, libreelec nighty, ubuntu
> 20.04, windows 10).
> output of
> ffmpeg -hwaccel vaapi -i Downloads/The\ Project.ts -vcodec rawvideo
> -acodec copy -f matroska -sn - | ffplay -report -i -
> snippets of kodi.log from when the corruption occurs (I can provide
> more logs)
> 2021-11-30 20:36:36.863 T:333115 DEBUG <general>:
> ffmpeg[0x56321c011040X]: [mpegts] Packet corrupt (stream = 0, dts =
> 2021-11-30 20:52:18.128 T:366796 DEBUG <general>:
> ffmpeg[0x56321b9c1730X]: [mpegts] Packet corrupt (stream = 0, dts =
> 2021-11-30 20:52:33.301 T:372941 DEBUG <general>:
> ffmpeg[0x7f559c0dec80X]: [image2] Custom AVIOContext makes no sense
> and will be ignored with AVFMT_NOFILE format.
> http://ix.io/3EE0 <http://ix.io/3EE0>
> mediainfo of a longer version of the sample video
> video of artefacting
> https://youtu.be/EJCfi4RP5Pg <https://youtu.be/EJCfi4RP5Pg>
> Sample video (200mb) Corruption occurs at around 4m40s.
> I can provide more info and samples if requested.
> Anyone have any thoughts on the issue?
> Thanks in advance.
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