[Cin]Prores 4444 test footage

2 Dec 2025

      https://www.videezy.com/free-video/prores-4444

well, some 10 sec video can weight 547 Mb!

Now, trying THIS instead of just 422 I see "device lost" on my end too!

./ffmpeg  -init_hw_device vulkan=vulkan -hwaccel vulkan
-filter_hw_device vulkan -hwaccel_output_format vulkan -i
~/200818_LoopAlphaThankYouGoldText.mov   -c:v prores_ks_vulkan -f
matroska  4k.mov
ffmpeg version N-120782-gc12bca52f8 Copyright (c) 2000-2025 the FFmpeg
developers
  built with gcc 11.2.0 (GCC)
  configuration: --enable-opencl --disable-debug --enable-libx265
--enable-libx264 --enable-gpl --enable-libplacebo --enable-vulkan
--enable-libshaderc --enable-libzimg --enable-libaom --enable-libdav1d
--enable-libsoxr --enable-libfontconfig --enable-libfreetype
--enable-libfribidi --enable-gnutls --enable-libass --enable-libbluray
--enable-libcdio --enable-frei0r --enable-libgsm --enable-openal
--enable-libopus --enable-librtmp --enable-libsnappy --enable-libspeex
--enable-libssh --enable-libtheora --enable-libtwolame
--enable-libv4l2 --enable-libvidstab --enable-libvorbis
--enable-libvpx --enable-libwebp
  libavutil      60. 19.101 / 60. 19.101
  libavcodec     62. 21.100 / 62. 21.100
  libavformat    62.  6.103 / 62.  6.103
  libavdevice    62.  2.100 / 62.  2.100
  libavfilter    11. 10.101 / 11. 10.101
  libswscale      9.  3.100 /  9.  3.100
  libswresample   6.  2.100 /  6.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'/home/guest/200818_LoopAlphaThankYouGoldText.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2020-08-24T17:07:38.000000Z
  Duration: 00:00:10.00, start: 0.000000, bitrate: 459164 kb/s
  Stream #0:0[0x1](eng): Video: prores (4444) (ap4h / 0x68347061),
yuva444p12le(tv, bt709, progressive), 3840x2160, 458325 kb/s, SAR 1:1
DAR 16:9, 30 fps, 30 tbr, 30 tbn (default)
    Metadata:
      creation_time   : 2020-08-24T17:07:38.000000Z
      handler_name    : Apple Video Media Handler
      vendor_id       : appl
      encoder         : Apple ProRes 4444
      timecode        : 00:00:00:00
  Stream #0:1[0x2](eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
    Metadata:
      creation_time   : 2020-08-24T17:07:38.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 00:00:00:00
File '4k.mov' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (prores (native) -> prores (prores_ks_vulkan))
Press [q] to stop, [?] for help
[prores_ks_vulkan @ 0xbd54600] Autoselected 4:4:4:4 profile because of
the used input colorspace. It can be overridden through -profile
option.
Output #0, matroska, to '4k.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    encoder         : Lavf62.6.103
  Stream #0:0(eng): Video: prores (4444) (ap4h / 0x68347061),
vulkan(tv, bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31,
200 kb/s, 30 fps, 1k tbn (default)
    Metadata:
      encoder         : Lavc62.21.100 prores_ks_vulkan
      creation_time   : 2020-08-24T17:07:38.000000Z
      handler_name    : Apple Video Media Handler
      vendor_id       : appl
      timecode        : 00:00:00:00
radv/amdgpu: The CS has been cancelled because the context is lost.
This context is guilty of a soft recovery.
[prores_ks_vulkan @ 0xbd54600] [vk @ 0xbd6d240] Unable to submit
command buffer: VK_ERROR_DEVICE_LOST
[vost#0:0/prores_ks_vulkan @ 0xbd65bc0] [enc:prores_ks_vulkan @
0xbd54580] Error submitting video frame to the encoder
[vost#0:0/prores_ks_vulkan @ 0xbd65bc0] [enc:prores_ks_vulkan @
0xbd54580] Error encoding a frame: Generic error in an external
library
[vost#0:0/prores_ks_vulkan @ 0xbd65bc0] Task finished with error code:
-542398533 (Generic error in an external library)
[vost#0:0/prores_ks_vulkan @ 0xbd65bc0] Terminating thread with return
code -542398533 (Generic error in an external library)
[prores @ 0xbd57700] [vk @ 0xe4600dc0] Unable to submit command
buffer: VK_ERROR_DEVICE_LOST
[out#0/matroska @ 0xbd63e40] video:0KiB audio:0KiB subtitle:0KiB other
streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/matroska @ 0xbd63e40] Output file is empty, nothing was
encoded(check -ss / -t / -frames parameters if used)
frame=    0 fps=0.0 q=0.0 Lsize=       1KiB time=N/A bitrate=N/A
speed=N/A elapsed=0:01:01.94
Conversion failed!

I have 4 Gb vram, but 32-bit system.

Testing just decoding with

./ffmpeg  -init_hw_device vulkan=vulkan -hwaccel none
-filter_hw_device vulkan -hwaccel_output_format vulkan -i
~/200818_LoopAlphaThankYouGoldText.mov   -f null /dev/null -benchmark

gives me

frame=  300 fps= 15 q=-0.0 Lsize=N/A time=00:00:10.00 bitrate=N/A
speed=0.502x elapsed=0:00:19.91
bench: utime=72.167s stime=0.745s rtime=19.911s
bench: maxrss=693980KiB

./ffmpeg  -init_hw_device vulkan=vulkan -hwaccel vulkan
-filter_hw_device vulkan -hwaccel_output_format vulkan -i
~/200818_LoopAlphaThankYouGoldText.mov   -f null /dev/null -benchmark

frame=  300 fps= 69 q=-0.0 Lsize=N/A time=00:00:10.00 bitrate=N/A
speed=2.31x elapsed=0:00:04.32
bench: utime=0.771s stime=1.278s rtime=4.327s
bench: maxrss=146296KiB

So it works .... I think? At least when using ffmpeg from git ...

[Cin]Prores 4444 test footage

Andrew Randrianasulu