сб, 26 апр. 2025 г., 22:58 Andrew Randrianasulu <randrianas...@gmail.com>:
> > > сб, 26 апр. 2025 г., 22:48 Andrea paz <gamberucci.and...@gmail.com>: > >> I re-did the test because I had not put in the environment variables. >> > > RADV (AMD) need different ones... > > https://www.phoronix.com/news/RADV-Vulkan-Video-VCN4 > > ===== > The RDNA2 support remains off by default and there is no word from AMD yet > when they may be providing updated firmware for the video events > compatibility. Otherwise the support can be enabled via the > *RADV_PERFTEST=video_decode* and *RADV_PERFTEST=video_encode* environment > variables manually. > > ==== > > but my hope was to see if libplacebo can be used with vaapi decode as > noted in ffmpeg docs: > > https://ffmpeg.org/ffmpeg-filters.html#libplacebo > ==== > Interop with VAAPI hwdec to avoid round-tripping through RAM: > > ffmpeg -init_hw_device vulkan -hwaccel vaapi -hwaccel_output_format vaapi ... > -vf libplacebo > > ===== > Decode seems to work, and together with libplacebo's tonemap and pulling frames back to sysmem I got 15 fps at full 4k! RADV_PERFTEST=video_decode,video_encode time -p ./ffmpeg -init_hw_device vulkan=vulkan -filter_hw_device vulkan -hwaccel vulkan -i ~/K38_sdcard1/Documents/iPhone11_4K-recorder_59.940HDR10.mov -vf libplacebo=colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv -c:a copy -c:v rawvideo -f nut -benchmark /dev/null frame= 1148 fps= 15 q=-0.0 Lsize=27900063KiB time=00:00:19.16 bitrate=11927607.4kbits/s speed=0.246x bench: utime=36.673s stime=64.718s rtime=77.794s bench: maxrss=703552KiB real 79.39 user 36.77 sys 64.78 > It seems to me that the result is similar: >> >> export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json >> export ANV_VIDEO_DECODE=1 >> export ANV_VIDEO_ENCODE=1 >> >> ffmpeg -init_hw_device vulkan=vk:0 -filter_hw_device vk -hwaccel vaapi >> -hwaccel_output_format vaapi -i hdr_02.mp4 -vf >> libplacebo=colorspace=bt709:color_primaries=bt709:color_trc=bt709:range=tv >> -c:a copy -c:v hevc_vulkan -f avi /dev/null >> [...] >> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hdr_02.mp4': >> Metadata: >> major_brand : isom >> minor_version : 512 >> compatible_brands: isomiso2mp41 >> creation_time : 2017-06-04T23:05:26.000000Z >> encoder : Lavf57.72.101 >> Duration: 00:02:38.56, start: 0.000000, bitrate: 60142 kb/s >> Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), >> yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DA >> R 16:9], 60000 kb/s, 59.94 fps, 59.94 tbr, 90k tbn (default) >> Metadata: >> creation_time : 2017-06-04T23:05:26.000000Z >> handler_name : VideoHandler >> vendor_id : [0][0][0][0] >> Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, >> stereo, fltp, 125 kb/s (default) >> Metadata: >> creation_time : 2017-06-04T23:05:26.000000Z >> handler_name : SoundHandler >> vendor_id : [0][0][0][0] >> File '/dev/null' already exists. Overwrite? [y/N] y >> Stream mapping: >> Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_vulkan)) >> Stream #0:1 -> #0:1 (copy) >> Press [q] to stop, [?] for help >> [AVHWFramesContext @ 0x75ca2001aac0] Unsupported pixel format: vaapi! >> [Parsed_libplacebo_0 @ 0x75ca20004600] Failed to configure output pad >> on Parsed_libplacebo_0 >> [vf#0:0 @ 0x5b20b569c5c0] Error reinitializing filters! >> [vf#0:0 @ 0x5b20b569c5c0] Task finished with error code: -22 (Invalid >> argument) >> [vf#0:0 @ 0x5b20b569c5c0] Terminating thread with return code -22 >> (Invalid argument) >> [vost#0:0/hevc_vulkan @ 0x5b20b56c5580] Could not open encoder before EOF >> [vost#0:0/hevc_vulkan @ 0x5b20b56c5580] Task finished with error code: >> -22 (Invalid argument) >> [vost#0:0/hevc_vulkan @ 0x5b20b56c5580] Terminating thread with return >> code -22 (Invalid argument) >> [out#0/avi @ 0x5b20b55c3c80] Nothing was written into output file, >> because at least one of its streams received no packets. >> frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A >> Conversion failed! >> >
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