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• Why does a command in my Bash-script return 0 even when it fails ? Python, Whisper, ffmpeg

  10 juin 2024, par d-b

  I have a bash script that executes whisper on all sound files in a directory. Whisper uses ffmpeg to decode sound files to a format it can handle. One of the files in the directory was corrupt and caused ffmpeg to fail. The first time I executed my script it returned 1 when it hit that file but when I try to reproduce the error it always returns 0.

  


  Here is the log from the first run when 1 was returned :

  


  Traceback (most recent call last):&#xA;  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/audio.py", line 48, in load_audio&#xA;    .run(cmd=["ffmpeg", "-nostdin"], capture_stdout=True, capture_stderr=True)&#xA;     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&#xA;  File "/Users/db/Library/Python/3.11/lib/python/site-packages/ffmpeg/_run.py", line 325, in run&#xA;    raise Error(&#x27;ffmpeg&#x27;, out, err)&#xA;ffmpeg._run.Error: ffmpeg error (see stderr output for detail)&#xA;&#xA;The above exception was the direct cause of the following exception:&#xA;&#xA;Traceback (most recent call last):&#xA;  File "/Users/db/Library/Python/3.11/bin/whisper", line 8, in <module>&#xA;    sys.exit(cli())&#xA;             ^^^^^&#xA;  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/transcribe.py", line 437, in cli&#xA;    result = transcribe(model, audio_path, temperature=temperature, **args)&#xA;             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&#xA;  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/transcribe.py", line 121, in transcribe&#xA;    mel = log_mel_spectrogram(audio, padding=N_SAMPLES)&#xA;          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&#xA;  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/audio.py", line 130, in log_mel_spectrogram&#xA;    audio = load_audio(audio)&#xA;            ^^^^^^^^^^^^^^^^^&#xA;  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/audio.py", line 51, in load_audio&#xA;    raise RuntimeError(f"Failed to load audio: {e.stderr.decode()}") from e&#xA;RuntimeError: Failed to load audio: ffmpeg version 4.4.4 Copyright (c) 2000-2023 the FFmpeg developers&#xA;  built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)&#xA;  configuration: --prefix=/opt/local --cc=/usr/bin/clang --mandir=/opt/local/share/man --enable-audiotoolbox --disable-indev=jack --disable-libjack --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-opencl --disable-outdev=xv --enable-sdl2 --disable-securetransport --enable-videotoolbox --enable-avfilter --enable-avresample --enable-fontconfig --enable-gnutls --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libfribidi --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libzimg --enable-libzvbi --enable-lzma --enable-pthreads --enable-shared --enable-swscale --enable-zlib --enable-libaom --enable-libsvtav1 --arch=x86_64 --enable-x86asm --enable-gpl --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-postproc&#xA;  libavutil      56. 70.100 / 56. 70.100&#xA;  libavcodec     58.134.100 / 58.134.100&#xA;  libavformat    58. 76.100 / 58. 76.100&#xA;  libavdevice    58. 13.100 / 58. 13.100&#xA;  libavfilter     7.110.100 /  7.110.100&#xA;  libavresample   4.  0.  0 /  4.  0.  0&#xA;  libswscale      5.  9.100 /  5.  9.100&#xA;  libswresample   3.  9.100 /  3.  9.100&#xA;  libpostproc    55.  9.100 / 55.  9.100&#xA;/soundfile1.opus: Invalid data found when processing input&#xA;&#xA;&#xA;exit: 1 //this is my own output&#xA;</module>

  


  and here is an example of when it returns 0 despite the input file is corrupt :

  


  % whisper soundfile1.opus

Traceback (most recent call last):
  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/audio.py", line 58, in load_audio
    out = run(cmd, capture_output=True, check=True).stdout
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/subprocess.py", line 571, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['ffmpeg', '-nostdin', '-threads', '0', '-i', 'soundfile1.opus', '-f', 's16le', '-ac', '1', '-acodec', 'pcm_s16le', '-ar', '16000', '-']' returned non-zero exit status 1.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/transcribe.py", line 597, in cli
    result = transcribe(model, audio_path, temperature=temperature, **args)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/transcribe.py", line 133, in transcribe
    mel = log_mel_spectrogram(audio, model.dims.n_mels, padding=N_SAMPLES)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/audio.py", line 140, in log_mel_spectrogram
    audio = load_audio(audio)
            ^^^^^^^^^^^^^^^^^
  File "/Users/db/Library/Python/3.11/lib/python/site-packages/whisper/audio.py", line 60, in load_audio
    raise RuntimeError(f"Failed to load audio: {e.stderr.decode()}") from e
RuntimeError: Failed to load audio: ffmpeg version 4.4.4 Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)
  configuration: --prefix=/opt/local --cc=/usr/bin/clang --mandir=/opt/local/share/man --enable-audiotoolbox --disable-indev=jack --disable-libjack --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-opencl --disable-outdev=xv --enable-sdl2 --disable-securetransport --enable-videotoolbox --enable-avfilter --enable-avresample --enable-fontconfig --enable-gnutls --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libfribidi --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libzimg --enable-libzvbi --enable-lzma --enable-pthreads --enable-shared --enable-swscale --enable-zlib --enable-libaom --enable-libsvtav1 --arch=x86_64 --enable-x86asm --enable-gpl --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-postproc
  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
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
soundfile1.opus: Invalid data found when processing input

Skipping soundfile1.opus due to RuntimeError: Failed to load audio: ffmpeg version 4.4.4 Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)
  configuration: --prefix=/opt/local --cc=/usr/bin/clang --mandir=/opt/local/share/man --enable-audiotoolbox --disable-indev=jack --disable-libjack --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-opencl --disable-outdev=xv --enable-sdl2 --disable-securetransport --enable-videotoolbox --enable-avfilter --enable-avresample --enable-fontconfig --enable-gnutls --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libfribidi --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libzimg --enable-libzvbi --enable-lzma --enable-pthreads --enable-shared --enable-swscale --enable-zlib --enable-libaom --enable-libsvtav1 --arch=x86_64 --enable-x86asm --enable-gpl --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-postproc
  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
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
soundfile1.opus: Invalid data found when processing input

% echo $?
0


  


  When I try to reproduce the behaviour I have both tried to execute the script as well as just running the actual line of code from the command prompt. The actual script looks like this :

  


  if whisper "$file" >> "${directory}/../${transdir}/${name}.txt"; then
    whispersuccess=$?
    echo "exit code $whispersuccess"
else
    whispersuccess=$?
    echo "exit code: $whispersuccess"


  


  I want it to return ¬0 when something like this happens. How do I achieve this ?

  


• How to config FFmpeg for xrgb and Aver Media capture card [closed]

  12 mai 2023, par Plotter Desalor

  I'm trying to use FFmpeg through ffplay to display a capture card output as lossless as possible.

  


  My capture card is named "Live Gamer Ultra-Video"

  


  In OBS, the NV12, YV12, P010 and YUY2 lead to blurriness around text and fine pixels edges, but the XRGB one offer clear output. So I've tried to focus on this mode with FFmpeg as the default one lead to same blurriness seen in OBS.

  


  Running "ffmpeg -f dshow -list_options true -i video="Live Gamer Ultra-Video" show me this result
(i've only kept line with wanted resolution)

  


  ffmpeg version 6.0-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
[dshow @ 00000240bf0eac40] DirectShow video device options (from video devices)
[dshow @ 00000240bf0eac40]  Pin "Capturer" (alternative pin name "0")
[dshow @ 00000240bf0eac40]   pixel_format=yuyv422  min s=2560x1440 fps=30 max s=2560x1440 fps=50
[dshow @ 00000240bf0eac40]   pixel_format=yuyv422  min s=2560x1440 fps=30 max s=2560x1440 fps=50 (tv, bt709/bt709/unknown, topleft)
[dshow @ 00000240bf0eac40]   pixel_format=yuv420p  min s=2560x1440 fps=30 max s=2560x1440 fps=60.0002
[dshow @ 00000240bf0eac40]   pixel_format=yuv420p  min s=2560x1440 fps=30 max s=2560x1440 fps=60.0002 (tv, bt709/bt709/unknown, topleft)
[dshow @ 00000240bf0eac40]   pixel_format=nv12  min s=2560x1440 fps=30 max s=2560x1440 fps=60.0002
[dshow @ 00000240bf0eac40]   pixel_format=nv12  min s=2560x1440 fps=30 max s=2560x1440 fps=60.0002 (tv, bt709/bt709/unknown, topleft)
[dshow @ 00000240bf0eac40]   unknown compression type 0xE436EB7D  min s=2560x1440 fps=30 max s=2560x1440 fps=30
[dshow @ 00000240bf0eac40]   unknown compression type 0xE436EB7D  min s=2560x1440 fps=30 max s=2560x1440 fps=30 (tv, bt709/bt709/unknown, topleft)
[dshow @ 00000240bf0eac40]   unknown compression type 0x30313050  min s=2560x1440 fps=30 max s=2560x1440 fps=30
[dshow @ 00000240bf0eac40]   unknown compression type 0x30313050  min s=2560x1440 fps=30 max s=2560x1440 fps=30 (tv, bt709/bt709/unknown, topleft)

video=Live Gamer Ultra-Video: Immediate exit requested


  


  "unknown compression type 0xE436EB7D" is a pretty bad start but from https://trac.ffmpeg.org/ticket/6279 I could figured out it was just unproperly parsed RGB24 format

  


  But if I run a very simple "ffplay -f dshow -i video="Live Gamer Ultra-Video" -pixel_format rgb24"
I got this output

  


  ffplay version 6.0-essentials_build-www.gyan.dev Copyright (c) 2003-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
[dshow @ 000001ec3fa39300] Could not set video options   0B f=0/0
video=Live Gamer Ultra-Video: I/O error


  


  How could I use rgb format with this capture card ?

  


  If not possible, any other format leading to proper output would be ok too.
I've tried parameters from this topic Capture full-range/lossless rgb frame from capture card that supports NV12 and YUYV output without any good result sadly.

  


• FFmpeg Drawtext - Fontconfig error : Cannot load default config file : No such file : (null)

  29 mars 2023, par James

  I get the message : Fontconfig error : Cannot load default config file : No such file : (null).
No output is created.

  


  I have installed FFmpeg full version and written this test script to add text onto an image which I drag and drop onto the BAT file.

  


  I searched this database for solutions and found none. The script should produce an output file test.png, The image should have red text on it which reads Hello.

  


  I tried to escape the path to the Font both ways without success :

  


  `set "FONT='c\:\\windows\\fonts\\arial.ttf'" :: Font


  


  `

  


  .. and

  


  `set "FONT='c\:\/windows\/fonts\/arial.ttf'" :: Font`


  


  My full script :

  


  `set "FONT='c\:\/windows\/fonts\/arial.ttf'" :: Font
set "TEXT=Hello" :: Text (no space characters allowed, see next example)
set "COLOR=red" :: Text color
set "SIZE=20" :: Font size
set "POS_X=(w-tw)/2" :: X position of text, use (w-tw)/2 for centering
set "POS_Y=(h-th)/2" :: Y position of text, use (h-th)/2 for centering


ffmpeg -i %1 -vf     drawtext='fontfile=%FONT%:text=%TEXT%:fontcolor=%COLOR%:fontsize=%SIZE%:x=%POS_X%:y=%POS_Y%' -  frames 1 -y test.png


pause`


  


  The complete result :
 C :\Users\canjm\Desktop\Image Correction 360\Archive
Testing\Utilities\Align Photo>set
  
"FONT='c :/windows/fonts/arial.ttf'" : : Font

  


  C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo>set  "TEXT=Hello" :: Text (no space characters allowed, see next example)

C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo>set "COLOR=red" :: Text color
C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo>set "SIZE=20" :: Font size
C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo>set "POS_X=(w-tw)/2" :: X position of text, use (w-tw)/2 for centering

C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo>set "POS_Y=(h-th)/2" :: Y position of text, use (h-th)/2 for centering

C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo>ffmpeg -i "C:\Users\canjm\Desktop\Image Correction 360\Archive Testing\Utilities\Align Photo\Eqr_360_9999.JPG" -vf drawtext='fontfile='c\:\/windows\/fonts\/arial.ttf':text=Hello:fontcolor=red:fontsize=20:x=(w-tw)/2:y=(h-th)/2' -frames 1 -y test.png


  


  ffmpeg version 2023-03-27-git-f7abe92bd7-full_build-
www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
configuration : —enable-gpl —enable-version3 —enable-static
—disable-w32threads —disable-autodetect —enable-
fontconfig —enable-iconv —enable-gnutls —enable-libxml2 —
enable-gmp —enable-bzlib —enable-lzma —enable-libsnappy —
enable-zlib —enable-librist —enable-libsrt —enable-libssh
—enable-libzmq —enable-avisynth —enable-libbluray —
enable-libcaca —enable-sdl2 —enable-libaribb24 —enable-
libdav1d —enable-libdavs2 —enable-libuavs3d —enable-
libzvbi —enable-librav1e —enable-libsvtav1 —enable-libwebp
—enable-libx264 —enable-libx265 —enable-libxavs2 —enable-
libxvid —enable-libaom —enable-libjxl —enable-libopenjpeg
—enable-libvpx —enable-mediafoundation —enable-libass —
enable-frei0r —enable-libfreetype —enable-libfribidi —
enable-liblensfun —enable-libvidstab —enable-libvmaf —
enable-libzimg —enable-amf —enable-cuda-llvm —enable-cuvid
—enable-ffnvcodec —enable- nvdec —enable-nvenc —enable-
d3d11va —enable-dxva2 —enable-libvpl —enable-libshaderc —
enable-vulkan —enable-libplacebo - -enable-opencl —enable-
libcdio —enable-libgme —enable-libmodplug —enable-
libopenmpt —enable-libopencore-amrwb —enable-libmp3lame —
enable-libshine —enable-libtheora —enable-libtwolame —
enable-libvo-amrwbenc —enable-libilbc —enable-libgsm —
enable-libopencore-amrnb —enable-libopus —enable-libspeex -
-enable-libvorbis —enable-ladspa —enable-libbs2b —enable-
libflite —enable-libmysofa -tab —enable-libvmaf —enable-
libzimg —enable-amf —enable-cuda-llvm —enable-cuvid —
enable-ffnvcodec —enable-nvdec —enable-nvenc —enable-
d3d11va —enable-dxva2 —enable-libvpl —enable-libshaderc —
enable-vulkan —enable-libplacebo —enable-opencl —enable-
libcdio —enable-libgme —enable-libmodplug —enable-
libopenmpt —enable-libopencore-amrwb —enable-libmp3lame —
enable-libshine —enable-libtheora —enable-libtwolame —
enable-libvo-amrwbenc —enable-libilbc —enable-libgsm —
enable-libopencore-amrnb —enable-libopus —enable-libspeex -
-enable-libvorbis —enable-ladspa —enable-libbs2b —enable-
libflite —enable-libmysofa —enable-librubberband —enable-
libsoxr —enable-chromaprint libavutil 58. 5.100 / 58.
  
5.100 libavcodec 60. 7.100 / 60. 7.100 libavformat
  
60. 4.100 / 60. 4.100 libavdevice 60. 2.100 / 60.
  
2.100 libavfilter 9. 5.100 / 9. 5.100-enable-
librubberband —enable-libsoxr — enable-chromaprint
libavutil 58. 5.100 / 58. 5.100
libavcodec 60. 7.100 / 60. 7.100 Duration : 00:00:00.04,
start : 0.000000, bitrate : 95429 kb/s
Stream #0:0 : Video : mjpeg (Baseline), yuvj444p(pc,
bt470bg/unknown/unknown), 5792x2896, 25 fps, 25 tbr, 25 tbn
Stream mapping :
Stream #0:0 -> #0:0 (mjpeg (native) -> png (native))
Press [q] to stop, [?] for help
Fontconfig error : Cannot load default config file : No such
file : (null)

  


  C:\Users\canjm\Desktop\Image Correction 360\Archive 
Testing\Utilities\Align Photo>pause
Press any key to continue . . .``