#10615: av1_vaapi does not respect qp, despite implementing qp as a viable
rc_mode
--------------------------------------+----------------------------------
Reporter: tjhexf | Type: defect
Status: new | Priority: normal
Component: undetermined | Version: 5.1.3
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
--------------------------------------+----------------------------------
Summary of the bug:
How to reproduce:
{{{
ffmpeg -i input.mkv -vaapi_device /dev/dri/renderD128 -vf
format='nv12,hwupload' -c:v av1_vaapi -qp:v 40 output.mkv
}}}
ffmpeg will fail to use qp, writing:
[out#0/matroska @ 0x3c25140] Codec AVOption qp (Constant QP (for P-frames;
scaled by qfactor/qoffset for I/B)) has not been used for any stream. The
most likely reason is either wrong type (e.g. a video option with no video
streams) or that it is a private option of some encoder which was not
actually used for any stream.
Logs imply it's using qp 25, despite not allowing for overriding this.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10615>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
