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• "Couldn't find ffmpeg or avconv" error while importing pydub

  14 avril 2020, par Vidya Reddy

  I am trying to convert .mp3 file to .wav. I am facing issue. I have tried all the suggestions given in stackoverflow but no use. ffmpeg is also installed successfully. Please find below code I am using

  



  from pydub import AudioSegment
src = 'Audio_1.mp3'
dst = 'Audio_2.wav'
sound = AudioSegment.from_mp3(src)
sound.export(dst, format="wav")


  



  I am facing below errors :

  



  RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work
FileNotFoundError: [WinError 2] The system cannot find the file specified


  



  I have tried all the existing solutions in stackoverflow but nothing could help. ffmpeg is installed successfully but still the issue. Please help me in this

  


• FFMPEG, running through subprocess, getting error : "pipe: : Invalid data found when processing input"

  19 avril 2020, par mamba9999

  Im writing a program which getting the stream from ip camera, do with frame what i need and send to ffmpeg for transcoding. Then ffmpeg should convert video and send to output url.
But when i running script, i get the error : "pipe: : Invalid data found when processing input".
Im really newby in ffmpeg. Please help, what i doing wrong.

  



  
cap = cv2.VideoCapture("rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov")

command = [
    "ffmpeg",
    "-i", "-",
    "-f", "mpegts",
    "-vcodec", "mpeg1video",
    "-s", "960x540",
    "-b:v", "1000K",
    "-r", "30",
    "-bf", "0",
    "-codec:a", "mp2",

    "http://127.0.0.1:8888/yoursecret"
]

proc = subprocess.Popen(command, stderr=subprocess.PIPE, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
out, err = proc.communicate()


print(err)

while True:
    ret, frame = cap.read()
    # _, buf = cv2.imencode('.jpg', frame)
    # img_byte = io.BytesIO(buf.tobytes())
    try: 
        proc.stdin.write(frame.tostring())
        print("SENDED")
    except IOError as e:
        print(e) 
        proc.stdin.close()
        proc.wait() 

proc.stdin.close()
proc.wait()


  



  Traceback

  



  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with Apple clang version 11.0.0 (clang-1100.0.33.17)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_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-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --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-videotoolbox --disable-libjack --disable-indev=jack
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
pipe:: Invalid data found when processing input


  


• How do I fix the "Packet mismatch -92141241 11 214124" error in FFmpeg ?

  25 octobre 2024, par Sacher

  How do I fix the "Packet mismatch -92141241 11 214124" error .
  
I'm going to answer my own question, because the phrase packet size mismatch comes up regularly in posts relating to ffmpeg, but I've nowhere seen a satisfactory solution to it.
  
My command is :

  



  ffmpeg -rw_timeout 1000000 -i rtmp://ip/appName/StreamName -vn -ar 16000 -ac 1 -f segment -segment_format wav -segment_time 3 %d.wav


  



  The error is :

  



  [segment e X5b4a87e55e0 Upening I.wav for writing
[segment @ Øx5634a87e53e0] Opening '2.wav' for writing
[segment @ 8x5634a87e53e0] Opening '3.wav' for writing
[segment @ Øx5634a87e53e0] Opening '4.wav' for writing
[segment @ Øx5634a87e53e0] Opening '5.wav' for writing
[segment @ 8x5634a87e53e0] Opening '6.wav' for writing
[segment @ Øx5634a87e53e0] Opening '7.wav' for writing
[segment @ Øx5634a87e53eØ] Opening '8.wav' for writing
[segnent @ 0x5634a87e53e0] Opening '9.wav' for writing
[segnent @ 0x5634a87e53e0J Opening '10.wav' for writing
[segment @ Øx5634a87e53eØJ Opening '11.wav' for writing
[segment @ Øx5634a87e53eØ] Opening '12.wav' for writing
[segment @ Øx5634a87e53eØ] Opening '13.wav' for writing
[segment @ Øx5634a87e53eØ] Opening '14.wav' for writing
[segment @ 0x5634a87e53e0] Opening '15.wav' for writing
[segment @ Øx5634a87e53e0] Opening '16.wav' for writing
[segment @ 0x5634a87e53e0] Opening '17.wav' for writing
[flv @ 0x5634a87df740J Packet mismatch -92244280 11 167729
[flv @ 0x5634a87df740] Packet mismatch -594165790 48656 216385
[flv @ ex5634a87df740] Packet mismatch -289696512 49936 2663212
[flv @ 0x5634a87df740] Packet mismatch -606269659 56848 323169
[flv @ 0x5634a87df740] Packet mismatch -1989457532 419680 372849
[flv @ 0x5634a87df740] Packet mismatch -1243998453 49937 422786


  



  How do I fix ?

  



  Thanks !