[FFmpeg-trac] #9771(avcodec:open): Small MAX_SLICES makes d3d11va (AVC) not bitperfect and causes artifacts (but not CUDA/NVDEC)
FFmpeg
trac at avcodec.org
Mon Dec 23 00:31:43 EET 2024
#9771: Small MAX_SLICES makes d3d11va (AVC) not bitperfect and causes artifacts
(but not CUDA/NVDEC)
-------------------------------------+-------------------------------------
Reporter: Balling | Owner: (none)
Type: defect | Status: open
Priority: important | Component: avcodec
Version: git-master | Resolution:
Keywords: d3d11va, | Blocked By:
h264, hwaccel, dxva2 |
Blocking: | Reproduced by developer: 1
Analyzed by developer: 1 |
-------------------------------------+-------------------------------------
Comment (by Timo R.):
I'd be more inclined to just get rid of the limit entirely, given it's not
based on the reality that the codec has no limit.
But that's obviously a bigger undertaking.
For just dxva2_h264 it seems fairly simply though, just convert the two
fixed size arrays into one one dynamically growing. Maybe with some pretty
high upper limit, to avoid runaway memory allocations.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9771#comment:8>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list