[FFmpeg-devel] [PATCH] AV1 VDPAU hwaccel Decode support
Philip Langdale
philipl at overt.org
Wed Jun 22 13:13:19 EEST 2022
On Tue, 21 Jun 2022 02:45:21 +0000
Manoj Bonda <mbonda at nvidia.com> wrote:
> Hi Philip,
>
> The issue seems to be from MPV side rather than from ffmpeg patch.
> I was able to decode the clip Halo_AV1 properly bitmatching with
> nvcuvid output with ffmpeg + VDPAU.
>
> Please find the cmds I used to verify the same.
>
> ./ffmpeg -hwaccel vdpau -i
> /home/bondamanoj/VideoClips/AV1Clips/Halo_AV1.mp4 -y
> decoded_vdpau.yuv ./ffmpeg -hwaccel nvdec -i
> /home/bondamanoj/VideoClips/AV1Clips/Halo_AV1.mp4
> decoded_nvcuvid.yuv cmp decoded_vdpau.yuv
> ~/Downloads/ffmpeg-git2/FFmpeg/decoded_nvcuvid.yuv
>
> The same clip is dumped using mpv via cmd
> ./mpv --hwdec=vdpau-copy --o=Halo_dump_av1.yuv --of=rawvideo
> /home/bondamanoj/VideoClips/AV1Clips/Halo_AV1.mp4
>
> Is differing and is having corruption while playing.
>
>
> Thanks,
> ManojGupta.
Hi Manoj,
Ok. In that case, I guess it's reasonable to merge. I'm puzzled as to
the behaviour as other codecs work fine and other hwaccels used by the
same av1 decoder also work fine, so I don't see where there is room for
things to go wrong specifically in mpv specifically for this hwaccel.
Anyway, I'll merge it later this week.
Thanks,
--phil
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