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• Pydub AudioSegment.from_file() fails for mp3 audio file : Decoding failed. ffmpeg returned error code : 1,

  27 mars 2021, par Nisuga Jayawardana

  Couldn't find any fix. Looks like a bug. How to fix this ?

  


      # Grab the file from the request
    file_uploaded = request.FILES.get('sourceFile')
    file_path = uploads_base_path + file_uploaded.name
    
    # saving the uploaded file
    open(file_path, 'wb')

    extension = file_uploaded.name.split('.')[-1]
    with open(file_path, "rb") as wav_file:
        audio_segment = AudioSegment.from_file(wav_file, format=extension)    <-------------Error

    # create .wav filename for the file
    wavFileName = uploads_base_path + 'out.wav'
    print(wavFileName)

    # convert audio file to .wav type
    audio_segment.export(wavFileName,"wav")


  


  // Pydub Error
  
Decoding failed. ffmpeg returned error code : 1
  
Output from ffmpeg/avlib :
  
ffmpeg version N-101739-gcad3a5d715 Copyright (c) 2000-2021 the FFmpeg developers
  
built with gcc 9.3-win32 (GCC) 20200320

  


  // FFMPEG Error
  
[cache @ 000001c52157fdc0] Inner protocol failed to seekback end : -40
  
Last message repeated 1 times
  
[mp3 @ 000001c52157f400] Failed to read frame size : Could not seek to 1026.
  
[cache @ 000001c52157fdc0] Statistics, cache hits:0 cache misses:0
  
cache:pipe:0 : Invalid argument

  


• ffmpeg error=13 permission denied android 10 [closed]

  30 mars 2021, par MrParaskumar

  2021-03-26 12:10:36.988 12431-12727/? E/e: Exception while trying to run: [Ljava.lang.String;@c68db54
    java.io.IOException: Cannot run program "/data/user/0/package name/files/ffmpeg": error=13, Permission denied
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050)
        at java.lang.Runtime.exec(Runtime.java:698)
        at java.lang.Runtime.exec(Runtime.java:563)
        at c.d.a.a.n.a(:10)
        at c.d.a.a.f.b(:38)
        at c.d.a.a.f.doInBackground(:10)
        at android.os.AsyncTask$3.call(AsyncTask.java:378)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)
     Caused by: java.io.IOException: error=13, Permission denied


  


• How to record audio and video on macos with ffmpeg ?

  5 janvier 2024, par chovy

  $ ffmpeg -f avfoundation -list_devices true -i ""
...
[AVFoundation indev @ 0x7fa8c24312c0] AVFoundation video devices:
[AVFoundation indev @ 0x7fa8c24312c0] [0] FaceTime HD Camera
[AVFoundation indev @ 0x7fa8c24312c0] [1] Capture screen 0
[AVFoundation indev @ 0x7fa8c24312c0] AVFoundation audio devices:
[AVFoundation indev @ 0x7fa8c24312c0] [0] MacBook Pro Microphone


  


  These are my audio and video devices.
I'm trying to record audio from mic and video capture of screen.
However when I try to run the command I get this error :

  


  $ ffmpeg -f avfoundation -i "1:0"  \             
  ~/Videos/screencast.mp4
ffmpeg version 4.3.2 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.29)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --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-librtmp --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
[AVFoundation indev @ 0x7fced1c315c0] Configuration of video device failed, falling back to default.
[avfoundation @ 0x7fced2009000] Selected pixel format (yuv420p) is not supported by the input device.
[avfoundation @ 0x7fced2009000] Supported pixel formats:
[avfoundation @ 0x7fced2009000]   uyvy422
[avfoundation @ 0x7fced2009000]   yuyv422
[avfoundation @ 0x7fced2009000]   nv12
[avfoundation @ 0x7fced2009000]   0rgb
[avfoundation @ 0x7fced2009000]   bgr0
[avfoundation @ 0x7fced2009000] Overriding selected pixel format to use uyvy422 instead.


  


  Additionally I'd like to capture camera in lower right. This is how I do it on Linux, but the basics don't even work on MacOS.

  


  screencap() {
  file=`date +%Y-%m-%d-%H.%M.%S`
  ffmpeg -f alsa -i pulse -f x11grab -thread_queue_size 64 -i :0.0 \
  -video_size 384x216 -i /dev/video0 \
        -filter_complex 'overlay=main_w-overlay_w:main_h-overlay_h' \
  -r 60 -preset ultrafast ~/Videos/screencast-${file}.mp4
}