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• Convert amr to mp3 with ffmeg on ubuntu - Input/output error

  16 mars 2020, par Daniel

  I want to convert amr to mp3. I am following after this question :

  AMR to MP3 conversion with FFMPEG

  and typing :

  ffmpeg -i example.amr -ar 22050 example.mp3

  But output contains errors :

  ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  [amr @ 0x2034540] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, amr, from 'example.amr':
  
    Duration: 00:00:35.30, bitrate: 12 kb/s
  
      Stream #0:0: Audio: amr_nb (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s
  
  Output #0, mp3, to 'example.mp3':
  
    Metadata:
  
      TSSE            : Lavf56.40.101
  
      Stream #0:0: Audio: mp3 (libmp3lame), 22050 Hz, mono, fltp
  
      Metadata:
  
        encoder         : Lavc56.60.100 libmp3lame
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (amr_nb (amrnb) -> mp3 (libmp3lame))
  
  Press [q] to stop, [?] for help
  
  example.amr: Input/output error
  
  size=     138kB time=00:00:35.31 bitrate=  32.1kbits/s    
  
  video:0kB audio:138kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.160448%

  How to fix this ?

  Update - fastest method of update ffmpeg

  To update ffmpeg on Ubuntu 16 use these commands :

  sudo add-apt-repository ppa:jonathonf/ffmpeg-3
  
  sudo apt update && sudo apt upgrade

  Source

  http://ubuntuhandbook.org/index.php/2017/05/install-ffmpeg-3-3-in-ubuntu-16-04-14-04/

• ffmpeg - Convert mkv to mp4 on ubuntu 18.10 error ?

  28 mars 2020, par ScipioAfricanus

  I am trying to convert some mkvs to mp4s on Ubuntu 18.10 with ffmpeg, and I keep getting the error below. Aby thoughts ?

  I am following https://linuxconfig.org/install-ffmpeg-on-ubuntu-18-04-bionic-beaver-linux#h2-operating-system-and-software-versions

  I have installed ffmpeg and installed :

  sudo apt install -y libopus-dev libmp3lame-dev libfdk-aac-dev libvpx-dev libx264-dev yasm libass-dev libtheora-dev libvorbis-dev mercurial cmake

  Command I ran with output :

  ffmpeg -i 'video.mkv' -codec copy 'video.mp4' -strict -2 -y
  
  ffmpeg version 4.0.2-2 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 8 (Ubuntu 8.2.0-7ubuntu1)
  
    configuration: --prefix=/usr --extra-version=2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --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-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      56. 14.100 / 56. 14.100
  
    libavcodec     58. 18.100 / 58. 18.100
  
    libavformat    58. 12.100 / 58. 12.100
  
    libavdevice    58.  3.100 / 58.  3.100
  
    libavfilter     7. 16.100 /  7. 16.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  Trailing options were found on the commandline.
  
  Input #0, matroska,webm, from 'ALL nyannyancosplay tik toks (Chronological order) (HD-720p)-WxewnMF4j6Y.mkv':
  
    Metadata:
  
      COMPATIBLE_BRANDS: iso6avc1mp41
  
      MAJOR_BRAND     : dash
  
      MINOR_VERSION   : 0
  
      ENCODER         : Lavf58.12.100
  
    Duration: 00:27:39.74, start: -0.007000, bitrate: 834 kb/s
  
      Stream #0:0: Video: h264 (Main), yuv420p(progressive), 790x720 [SAR 1:1 DAR 79:72], 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default)
  
      Metadata:
  
        HANDLER_NAME    : ISO Media file produced by Google Inc. Created on: 01/13/2019.
  
        DURATION        : 00:27:39.724000000
  
      Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
  
      Metadata:
  
        DURATION        : 00:27:39.741000000
  
  [mp4 @ 0x560e85326100] track 1: codec frame size is not set
  
  [mp4 @ 0x560e85326100] opus in MP4 support is experimental, add '-strict -2' if you want to use it.
  
  Could not write header for output file #0 (incorrect codec parameters ?): Experimental feature
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
      Last message repeated 1 times

  I also tried adding -strict -2 to no avail.

• ffmpeg stream breaks after 5 min on ubuntu [closed]

  28 septembre 2021, par George Pavlov

  ffmpeg stream breaks after 5 min on ubuntu server when i run python !
But when I run bash- it works fine :
ffmpeg -re -nostdin -i /root/app2/m4.avi -vcodec libx264 -preset:v medium -bufsize 200000k -acodec aac -f flv rtmp ://live.twitch.tv/app/live
I tried to edit the bufsize - but this didnt work. May be the problem is to connect reset after time.

  


  My python script :
import time
import subprocess
import os

  


  if name == "main" :

  


      file = '/root/app2/m4.avi'

    command = []
    command.extend([
        'ffmpeg',
        '-re',
        '-nostdin',
        '-i', file,
        '-vcodec', 'libx264',
        '-preset:v', 'medium',
        '-b:v', '3000k','-maxrate', '10000k','-bufsize', '200000k',
        '-acodec', 'aac',
        '-f', 'flv', 'rtmp://live.twitch.tv/app/live______',
    ])

    #' '.join(command)

    process = subprocess.Popen(command,
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.PIPE)

    st=time.time()
    while time.time()-st<100*60:
        print(time.time()-st)