[Cin] System ffmpeg Vulkan video transcoding fails - while benchmarking works

[Andrew Randrianasulu]

сб, 26 апр. 2025 г., 23:33 Andrea paz <gamberucci.andrea at gmail.com>:

> OK; the new test:
>
> export RADV_PERFTEST=video_decode,video_encode
> time -p ffmpeg -init_hw_device vulkan=vulkan -filter_hw_device vulkan
> -hwaccel vulkan -i hdr_02.mp4 -vf libplaceb
> o=colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv -c:a
> copy -c:v rawvideo -f nut -benchmark /dev/null
> [...]
> Stream mapping:
>  Stream #0:0 -> #0:0 (hevc (native) -> rawvideo (native))
>  Stream #0:1 -> #0:1 (copy)
> Press [q] to stop, [?] for help
> Output #0, nut, to '/dev/null':
>  Metadata:
>    major_brand     : isom
>    minor_version   : 512
>    compatible_brands: isomiso2mp41
>    encoder         : Lavf61.7.100
>  Stream #0:0: Video: rawvideo (RGB[15] / 0xF424752), p010le(tv, bt709,
> progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 7457502 k
> b/s, 59.94 fps, 60k tbn (default)
>      Metadata:
>        creation_time   : 2017-06-04T23:05:26.000000Z
>        X-Language      : und
>        handler_name    : VideoHandler
>        vendor_id       : [0][0][0][0]
>        encoder         : Lavc61.19.100 rawvideo
>  Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz,
> stereo, fltp, 125 kb/s (default)
>      Metadata:
>        creation_time   : 2017-06-04T23:05:26.000000Z
>        X-Language      : und
>        handler_name    : SoundHandler
>        vendor_id       : [0][0][0][0]
> [out#0/nut @ 0x6397911f8200] video:230947200KiB audio:2438KiB
> subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead:
> 0
> .000243%
> frame= 9504 fps= 93 q=-0.0 Lsize=230950199KiB time=00:02:38.52
> bitrate=11934447.1kbits/s speed=1.54x
> bench: utime=99.985s stime=32.366s rtime=102.719s
> bench: maxrss=1764140KiB
> real 105,83
> user 100,02
> sys 32,43
>


like 6x faster than my case ;)

>
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