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• ffmpeg : Unrecognized option 'alpha_quality'

  16 avril 2024, par László Monda

  I want to make transparent videos work in Safari, which doesn't support WebM for this purpose but only H265 with alpha transparency.

  


  According to this post, I used Shutter Encoder, but only some of its versions work for this purpose on Mac.

  


  Instead of using Shutter Encoder on Mac, I want to use ffmpeg on my Linux PC. Shutter Encoder uses the following command in the background :

  


  ffmpeg -threads 0 -hwaccel none -i input.mov -c:v hevc_videotoolbox -alpha_quality 1 -b:v 1000k -profile:v main -level 5.2 -map v:0 -an -pix_fmt yuva420p -sws_flags bicubic -tag:v hvc1 -metadata creation_time=2024-04-14T14:53:08.734684Z -y output.mp4

  


  which yields the following output on my PC :

  


  ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
  configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  WARNING: library configuration mismatch
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libaribb24 --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc --enable-libsmbclient
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Unrecognized option 'alpha_quality'.
Error splitting the argument list: Option not found


  


  When googling for "Unrecognized option 'alpha_quality'.", there are no results, which I find very odd.

  


  What's going on, and how can I make ffmpeg work for this purpose without Shutter Encoder ?

  


• Can't convert video with cuda after updating ffmpeg

  8 avril 2024, par Peppe

  i've used this command sometimes to convert 4k video into 1080p without problem with tool "ffmpeg batch" and ffmpeg 5.1 ? "2022-08-10-git-8fc7f0fdec-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers built with gcc 12.1.0 (Rev2, Built by MSYS2 project)" :

  


  
-map 0 -map -0:t -filter_complex "scale_cuda=1920:1080:format=yuv420p:interp_algo=lanczos,hwdownload" -fps_mode:v passthrough -c:v h264_nvenc -preset 18 -profile:v high -level 4.1 -b:v 13000K -rc cbr -c:a copy -c:s copy


  


  this with pre-input "-hwaccell cuvid"

  


  Now if i try to to the same with latest version of ffmpeg (6.1.1) it don't work. I've tried to change the pre-input with "-hwaccel cuda" but still nothing, it give me error "Cannot find a matching stream for unlabeled input pad scale_cuda:default".

  


  If i try to add [v:0] before 'scale_cuda', i get this error (pgs subs error was present also before editing command) :

  


  [matroska,webm @ 0000025b18315680] Invalid Block Addition value 0x0 for unknown Block Addition Mapping type 68766345, name ""
[matroska,webm @ 0000025b18315680] Could not find codec parameters for stream 7 (Subtitle: hdmv_pgs_subtitle (pgssub)): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
[matroska,webm @ 0000025b18315680] Could not find codec parameters for stream 8 (Subtitle: hdmv_pgs_subtitle (pgssub)): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Multiple -hwaccel options specified for stream 0, only the last option '-hwaccel cuda' will be used.
Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scale_0'
[fc#0 @ 0000025b18311c80] Error reinitializing filters!
[fc#0 @ 0000025b18311c80] Task finished with error code: -40 (Function not implemented)
[fc#0 @ 0000025b18311c80] Terminating thread with return code -40 (Function not implemented)
[vost#0:0/h264_nvenc @ 0000025b183319c0] Could not open encoder before EOF
[vost#0:0/h264_nvenc @ 0000025b183319c0] Task finished with error code: -22 (Invalid argument)
[vost#0:0/h264_nvenc @ 0000025b183319c0] Terminating thread with return code -22 (Invalid argument)
[h264_nvenc @ 0000025b183692c0] 10 bit encode not supported
[h264_nvenc @ 0000025b183692c0] Provided device doesn't support required NVENC features
[vost#0:1/h264_nvenc @ 0000025b18330d80] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height.
[vf#0:1 @ 0000025b18340900] Error sending frames to consumers: Function not implemented
[vf#0:1 @ 0000025b18340900] Task finished with error code: -40 (Function not implemented)
[vf#0:1 @ 0000025b18340900] Terminating thread with return code -40 (Function not implemented)
[vost#0:1/h264_nvenc @ 0000025b18330d80] Could not open encoder before EOF
[vost#0:1/h264_nvenc @ 0000025b18330d80] Task finished with error code: -22 (Invalid argument)
[vost#0:1/h264_nvenc @ 0000025b18330d80] Terminating thread with return code -22 (Invalid argument)
[out#0/matroska @ 0000025b18569c40] Nothing was written into output file, because at least one of its streams received no packets.
frame=    0 fps=0.0 q=0.0 Lq=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A


  


  of this if I try to use -vf instead of the "filter_complex" :

  


  [matroska,webm @ 000001814b872040] Invalid Block Addition value 0x0 for unknown Block Addition Mapping type 68766345, name ""
[matroska,webm @ 000001814b872040] Could not find codec parameters for stream 7 (Subtitle: hdmv_pgs_subtitle (pgssub)): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
[matroska,webm @ 000001814b872040] Could not find codec parameters for stream 8 (Subtitle: hdmv_pgs_subtitle (pgssub)): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Multiple -hwaccel options specified for stream 0, only the last option '-hwaccel cuda' will be used.
Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scale_0'
[vf#0:0 @ 000001814b895fc0] Error reinitializing filters!
[vf#0:0 @ 000001814b895fc0] Task finished with error code: -40 (Function not implemented)
[vf#0:0 @ 000001814b895fc0] Terminating thread with return code -40 (Function not implemented)
[vost#0:0/h264_nvenc @ 000001814b892780] Could not open encoder before EOF
[vost#0:0/h264_nvenc @ 000001814b892780] Task finished with error code: -22 (Invalid argument)
[vost#0:0/h264_nvenc @ 000001814b892780] Terminating thread with return code -22 (Invalid argument)
[out#0/matroska @ 000001814b88e240] 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  


  


  Can someone tell me the correct way to do it now with an rtx 4090 ?

  


• vcpkg error : BUILD_FAILED when "Getting CMake variables for x64-windows"

  24 août 2024, par Rok Benko

  I'm trying to install ffmpeg via vcpkg on Windows by running the following command :

  


  vcpkg.exe install ffmpeg

  


  The installation throws an error when getting CMake variables for x64-windows.

  


  -- Getting CMake variables for x64-windows
CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:127 (message):
    Command failed: "C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/Ninja/ninja.exe" -v
    Working Directory: C:/Users/xxxxx/vcpkg/buildtrees/pkgconf/x64-windows-rel/vcpkg-parallel-configure
    Error code: 1
    See logs for more information:
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-dbg-CMakeCache.txt.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-rel-CMakeCache.txt.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-dbg-CMakeConfigureLog.yaml.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-rel-CMakeConfigureLog.yaml.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-out.log

Call Stack (most recent call first):
  installed/x64-windows/share/vcpkg-cmake/vcpkg_cmake_configure.cmake:269 (vcpkg_execute_required_process)
  installed/x64-windows/share/vcpkg-cmake-get-vars/vcpkg_cmake_get_vars.cmake:15 (vcpkg_cmake_configure)
  installed/x64-windows/share/vcpkg-tool-meson/vcpkg_configure_meson.cmake:323 (vcpkg_cmake_get_vars)
  installed/x64-windows/share/vcpkg-tool-meson/vcpkg_configure_meson.cmake:458 (vcpkg_generate_meson_cmd_args)
  ports/pkgconf/portfile.cmake:9 (vcpkg_configure_meson)
  scripts/ports.cmake:192 (include)


error: building pkgconf:x64-windows failed with: BUILD_FAILED
See https://learn.microsoft.com/vcpkg/troubleshoot/build-failures?WT.mc_id=vcpkg_inproduct_cli for more information.
Elapsed time to handle pkgconf:x64-windows: 1.9 s
Please ensure you're using the latest port files with `git pull` and `vcpkg update`.
Then check for known issues at:
  https://github.com/microsoft/vcpkg/issues?q=is%3Aissue+is%3Aopen+in%3Atitle+pkgconf
You can submit a new issue at:
  https://github.com/microsoft/vcpkg/issues/new?title=xxxxx


  


  What does this error mean ? The suggested git pull and vcpkg update didn't solve the error. The directory is up to date.

  


  PS : I opened logs, but I have no idea how to solve the error. I don't understand them.