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• Empty audio backends for torchaudio list audio backends, with ffmpeg installed on system libraries [closed]

  28 mars, par Alberto Agudo Dominguez

  I installed torchaudio 2.5.1 and a system install of ffmpeg on Windows and get :

  


  PS C:\Users\> ffmpeg -version
ffmpeg version 2025-01-05-git-19c95ecbff-essentials_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 14.2.0 (Rev1, 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-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --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      59. 54.101 / 59. 54.101
libavcodec     61. 31.100 / 61. 31.100
libavfilter    10.  6.101 / 10.  6.101
libswresample   5.  4.100 /  5.  4.100
libpostproc    58.  4.100 / 58.  4.100

PS C:\Users\> python
Python 3.12.5 (tags/v3.12.5:ff3bc82, Aug  6 2024, 20:45:27) [MSC v.1940 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import torchaudio
>>> torchaudio.list_audio_backends()
[]


  


  Hence ffmpeg is added to the path and recognized by the console, but not by torchaudio.

  


• The problem with pydub.AudioSegment.from_file (ffmpeg)

  7 septembre 2024, par akkoolda

  I'm trying to make a normal voice recording discord. When I try to convert an Audio Data object, an error occurs. I've already tried everything I can, I can't solve the problem.

  


  Here is the code, the error occurs in the seg variable :

  


  async def once_done(sink: discord.sinks.MP3Sink, channel: discord.TextChannel, *args):
        words_list = []
        audio_segs: list[pydub.AudioSegment] = []
        longest = pydub.AudioSegment.empty()
        files: list[discord.File] = []

        for user_id, audio in sink.audio_data.items():
            try:
                payload: FileSource = {
                    "buffer": audio.file.read(),
                    "mimetype": "audio/mp3"  # Указываем тип аудиофайла
            }

                #audio.on_format("mp3")
                seg = pydub.AudioSegment.from_file(audio.file, format="mp3")


  


  The error itself

  


  Exception in thread Thread-3 (recv_audio):
    Traceback (most recent call last):
      File "c:\Users\olimp\OneDrive\Рабочий стол\Work on Python\management-followups-bot\main.py", line 66, in once_done
        seg = pydub.AudioSegment.from_file(audio.file, format="mp3")
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\site-packages\pydub\audio_segment.py", line 773, in from_file
        raise CouldntDecodeError(
    pydub.exceptions.CouldntDecodeError: Decoding failed. ffmpeg returned error code: 3199971767
    
    Output from ffmpeg/avlib:
    
    ffmpeg version 2024-09-02-git-3f9ca51015-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
      built with gcc 13.2.0 (Rev5, 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-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --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-libcodec2 --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      59. 35.100 / 59. 35.100
      libavcodec     61. 11.100 / 61. 11.100
      libavformat    61.  5.101 / 61.  5.101
      libavdevice    61.  2.100 / 61.  2.100
      libavfilter    10.  2.102 / 10.  2.102
      libswscale      8.  2.100 /  8.  2.100
      libswresample   5.  2.100 /  5.  2.100
      libpostproc    58.  2.100 / 58.  2.100
    [cache @ 000001b25c1c6e00] Inner protocol failed to seekback end : -40
        Last message repeated 1 times
    [mp3 @ 000001b25c1c6840] Failed to find two consecutive MPEG audio frames.
    [cache @ 000001b25c1c6e00] Statistics, cache hits:0 cache misses:0
    [in#0 @ 000001b25c1ac740] Error opening input: Invalid data found when processing input
    Error opening input file cache:pipe:0.
    Error opening input files: Invalid data found when processing input
    
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\threading.py", line 1038, in _bootstrap_inner
        self.run()
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\threading.py", line 975, in run
        self._target(*self._args, **self._kwargs)
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\site-packages\discord\voice_client.py", line 868, in recv_audio
        result = callback.result()
                 ^^^^^^^^^^^^^^^^^
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\concurrent\futures\_base.py", line 456, in result
        return self.__get_result()
               ^^^^^^^^^^^^^^^^^^^
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\concurrent\futures\_base.py", line 401, in __get_result
        raise self._exception
      File "c:\Users\olimp\OneDrive\Рабочий стол\Work on Python\management-followups-bot\main.py", line 95, in once_done
        await channel.send(f"Ошибка при работе с Deepgram API: {str(e)}")
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\site-packages\discord\abc.py", line 1666, in send
        data = await state.http.send_message(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "C:\Users\olimp\AppData\Local\Programs\Python\Python311\Lib\site-packages\discord\http.py", line 374, in request
        raise HTTPException(response, data)
    discord.errors.HTTPException: 400 Bad Request (error code: 50035): Invalid Form Body
    In content: Must be 2000 or fewer in length.

Solving the error, how else can you normally record user audio


  


  How can I fix this, or maybe there are some other options ?

  


• Multiple trims to a video using ffmpeg generating video with shorter duration than expected [closed]

  9 septembre 2024, par Gerardo

  I have an application that given a video it trims multiple parts of that video using ffmpeg. Each part is cropped, scaled and then concatenated to generate a single video.

  


  To share an example, I have a video of 1 minute and 44 seconds of duration and 60 fps. My goal is to trim 3 parts of the video :

  


  

  • First one between seconds 0 to 44.666

  


  • Second one between seconds 44.666 to 74.349

  


  • Third one between seconds 74.349 to 103.985

  


  


  The ffmpeg command I use to achieve that is the following one :

  


  ffmpeg -y -hide_banner -i bg_720_1280.png -i error.mp4 -filter_complex "
[1:v]trim=0.0:44.666,setpts=PTS-STARTPTS,crop=405.0:720.0:437.5:0.0,scale=-2:1280.0[crop_1_0_v];
[1:a]atrim=0.0:44.666,volume=1.0,asetpts=PTS-STARTPTS[crop_1_0_a];
[0:v][crop_1_0_v]overlay=enable='between(t,0,44.666)':x=0.0:y=0.0[crop_1_0_v];
[1:v]trim=44.666:74.349,setpts=PTS-STARTPTS,crop=405.0:720.0:437.5:0.0,scale=-2:1280.0[crop_2_0_v];
[1:a]atrim=44.666:74.349,volume=1.0,asetpts=PTS-STARTPTS[crop_2_0_a];
[0:v][crop_2_0_v]overlay=enable='between(t,0,29.683)':x=0.0:y=0.0[crop_2_0_v];
[1:v]trim=74.349:103.985,setpts=PTS-STARTPTS,crop=405.0:720.0:437.5:0.0,scale=-2:1280.0[crop_3_0_v];
[1:a]atrim=74.349:103.985,volume=1.0,asetpts=PTS-STARTPTS[crop_3_0_a];
[0:v][crop_3_0_v]overlay=enable='between(t,0,29.636)':x=0.0:y=0.0[crop_3_0_v];
[crop_1_0_a][crop_2_0_a][crop_3_0_a]concat=n=3:v=0:a=1[a];
[crop_1_0_v][crop_2_0_v][crop_3_0_v]concat=n=3:v=1:a=0[outv];
[a]amix=1:duration=longest[outa]" -map "[outv]" -map "[outa]" -vcodec libx264 -acodec aac -sws_flags lanczos -pix_fmt yuv420p -crf 17 -preset superfast -r 60 test.mp4


  


  Running this command it generates a video of 11 seconds of duration and I'm unable to understand it. What is wrong with the command ? Also I'm open to recommendations of the ffmpeg command in case you find another way more efficient or performant.

  


  I'm using the following FFMPEG version :

  


  ffmpeg version 7.0.2 Copyright (c) 2000-2024 the FFmpeg developers
  built with Apple clang version 15.0.0 (clang-1500.3.9.4)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/7.0.2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox
  libavutil      59.  8.100 / 59.  8.100
  libavcodec     61.  3.100 / 61.  3.100
  libavformat    61.  1.100 / 61.  1.100
  libavdevice    61.  1.100 / 61.  1.100
  libavfilter    10.  1.100 / 10.  1.100
  libswscale      8.  1.100 /  8.  1.100
  libswresample   5.  1.100 /  5.  1.100
  libpostproc    58.  1.100 / 58.  1.100


  


  But I got the same issue with static ffmpeg builds

  


  The file bg_720_1280.png is just a transparent image of resolution 720x1280. I think I could achieve the same by using nullsrc filter with that resolution instead of using this background image.