#11271: How to choose the best hwaccel?
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Reporter: Mads | Owner: (none)
Johansen |
Type: enhancement | Status: closed
Priority: normal | Component:
| undetermined
Version: git-master | Resolution: fixed
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Mads Johansen):
Replying to [comment:5 Balling]:
> -f null NUL -
>
>
> makes no sense. - is pipe. NUL is a file (well, virtual file) on
Windows. You cannot output to NUL and to - at the same time.
>
>
https://www.reddit.com/r/ffmpeg/comments/101cgdu/twopass_f_null_nul_still_generate_output_windows/
>
> it needs to be -f null NUL
>
> > About the power consumption:
>
> Where is -c:v hevc_cuvid -i mandelbrot-yuv420p-2160p.mov
>
>
> dxva2 I believe is too ancient and has bugs (Will fail with older
libplacebo, but there is no reason to use dxva2
> anyway. d3d11va is available on all supported platforms and is bit-exact
> unlike dxva2 which always does conversion to 8-bit BGR, see
https://github.com/mpv-
player/mpv/commit/bd3ff140fa8c02253fa14939cba43da074329120). So not
realistic to use it nowadays.
1) The command I posted works, so I'm not going to mess with it.
2) The log file is attached. As I suspected -c:v is an output option, so
it made no sense to have it in the beginning.
3) If dxva2 is too ancient, why is it supported?
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11271#comment:6>
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