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• Node.js ffmetadata incorrect codec parameters

  21 juillet 2015, par Ahmed Hamdy

  I’m making a song downloader app in Node.js. I managed to get everything to work, the app downloads the song and downloads its artwork (image). So I have the mp3 file and jpg file. The only problem is attaching the jpg file to the mp3 file.

  I’m using the ffmetadata node.js module. I downloaded and installed its dependency "ffmpeg" cli.

  Now when I try to write the metadata to the mp3 file and attach the artwork it spits this error :

  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument

  My code :

  ffmetadata.write('test.mp3', {}, {attachments: ['test.jpg']}, function(err) {
  
    if (err) console.error(err);
  
  });

  The error :

  [Error: ffmpeg version N-73872-g6b96c70 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      54. 28.100 / 54. 28.100
  
    libavcodec     56. 50.101 / 56. 50.101
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 25.100 /  5. 25.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'songs/Irresistible - Fall Out Boy (Lyrics).mp3':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6mp41
  
      creation_time   : 2015-04-03 10:45:25
  
    Duration: 00:03:26.94, start: 0.000000, bitrate: 128 kb/s
  
      Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-03 10:45:25
  
        handler_name    : SoundHandler
  
  Input #1, image2, from 'songs/albumart/Irresistible - Fall Out Boy (Lyrics).jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 24578 kb/s
  
      Stream #1:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 640x640 [SAR 300:300 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
  
  [mp3 @ 0000000004865d80] Invalid audio stream. Exactly one MP3 audio stream is required.
  
  Output #0, mp3, to 'songs\Irresistible - Fall Out Boy (Lyrics).ffmetadata.mp3':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6mp41
  
      dryRun          : true
  
      encoder         : Lavf56.40.101
  
      Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 125 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-03 10:45:25
  
        handler_name    : SoundHandler
  
      Stream #0:1: Video: mjpeg, yuvj444p, 640x640 [SAR 300:300 DAR 1:1], q=2-31, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #1:0 -> #0:1 (copy)
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
  
  ]

• ffmpeg player in discord.py (python) automatically leave

  25 octobre 2018, par Rastasplif

  I have created a discord bot that on certain messages either sends back a message or plays a sound (like a soundboard)

  The crucial line of code is :

           soundboard_player = voice_client.create_ffmpeg_player("doh.mp3")
  
           soundboard_player.start()
  
           await client.send_message(message.channel, "Playing DOH...")

  This works absolutely fine but i kept trying to add the line
  after=voice_client.disconnect()
  I put this inside the ("doh.mp3", * I PUT IT HERE *) brackets.
  I wanted the bot to leave after it was done.

  When I run the code with the ’after’ statement included, the bot joins and I get the error message :

  TypeError: disconnect() takes 1 positional argument but 2 were given

  I know you can use soundboard_player.is_done() to check the status of the bot but I couldn’t figure out a way to check the status without trapping the code in a loop

  By trapping the code in the loop I cant execute a STOP command to stop it playing the song (soundbite) half way through.

  Any help with the after=voice_client.disconnect() command for the ffmpeg player
  or a creative way to periodically check the status without getting trapped in the loop ?

• ffmpeg adts streaming with ezstream for icecast

  9 août 2017, par Roberto Arosemena

  I’m trying to use ezstream to stream to an icecast server, my problem is while encoding the audio, I decode it from mp3 with madplay and I’m trying to encode it with ffmpeg so the output is aac, someone told me to use adts to be able to stream aac the problem is that the encoding doesn’t stream the audio, it shows the timer on the console but it goes from 0:00:00 to 0:00:40 to 0:01:30, etc until the song ends instead of going second by second, this is my config :

  <ezstream>
  
     <url>http://localhost:8100/t</url>
  
     <sourcepassword>password</sourcepassword>
  
     <format>MP3</format>
  
     <filename>/home/vybroo/server/audio/play.m3u</filename>
  
     <reencode>
  
        <enable>1</enable>
  
        <encdec>
  
           <format>MP3</format>
  
           <match>.mp3</match>
  
           <decode>madplay -b 16 -R 44100 -S -o raw:- @T@</decode>
  
           <encode>ffmpeg -f s16le -ar 44.1k -ac 2 -i - -b:a 32k -ar 44.1k -f adts -</encode>
  
        </encdec>
  
     </reencode>
  
  </ezstream>

  is the enconding config wrong ?, what should i change so it streams second by second correctly