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• FFMPEG MP3 file size much larger than expected on Windows 10

  8 avril 2018, par The Gora

  I’ve been using FFMPEG on Windows to :

  1. Convert iTunes M4A files to MP3s (with a bit rate of 128k) ; and
  2. Create 30 sec sample MP3s of the above MP3s (same bit rate).

  When I run FFMEG on a Windows 7 64 bit machine, the size of the MP3s (both for 1. & 2.) is in line with the rough calculation of :

  (Audio length in seconds) X (Bit rate)

  For example, a 4 minute audio yields an approx. 3.7MB MP3 file ; a 30 second sample MP3 is approx. 470KB.

  However when I run the same FFMPEG binary (copied from the Windows 7 machine) on a Windows 10 64 bit machine, all of the MP3s (both for 1. and for 2.) are inflated by approx 5MB. I’m using the same batch file on both machines to execute FFMEG with the required parameters, so pretty confident the difference is not down to user error.

  My questions are :

  1. Why is there this apparent 5MB overhead on Windows 10 ? and more importantly ;
  2. What can I do to remove this ?

  The large file size is a problem as the sample MP3s are to be put on a website for people to listen to a snippet of the song, and the webpage with multiple tags takes a long time to load completely (several minutes).

  Here is the version and lib info :

  ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
 built with gcc 7.2.0 (GCC)
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
 libavutil      55. 78.100 / 55. 78.100
 libavcodec     57.107.100 / 57.107.100
 libavformat    57. 83.100 / 57. 83.100
 libavdevice    57. 10.100 / 57. 10.100
 libavfilter     6.107.100 /  6.107.100
 libswscale      4.  8.100 /  4.  8.100
 libswresample   2.  9.100 /  2.  9.100
 libpostproc    54.  7.100 / 54.  7.100

  And here are the command lines I’m using :

  1. ffmpeg -i input.m4a -id3v2_version 3 -b:a 128k -output.mp3
  2. ffmpeg -i input.m4a -ss 30 -t 30 -af "afade=in:st=30:d=5,afade=out:st=55:d=5" -id3v2_version 3 -b:a 128k -output.mp3

• create video editor error stream specifier [on hold]

  25 mai 2018, par Oussama

  I am a beginner in ffmpeg, and I started by creating a video editor, but I encountered an error while executing an ffmpeg command :

  ’Stream specifier’ ’ in filtergraph description .... matches no streams’

  Here is the command :

  ’ffmpeg -y -i icone1.jpg -i icone2.jpg -i icone3.jpg -i icone4.jpg -loop 1 -framerate 24 -t 5 -i image1.jpg -loop 1 -framerate 24 -t 5 -i image2.jpg -i song.mp3 -filter_complex " color=black@0:1365x701,format=yuva444p[c0] ; color=black@0:1365x701,format=yuva444p[c1] ; [c0][4]scale2ref[ct0][mv0] ; [c1][5]scale2ref[ct1][mv1] ; [ct0]setsar=1,split=2[t00][t01] ; [ct1]setsar=1,split=1[t10] ; [t00]drawtext=fontfile=’arial’:text=’azaazzaza’:fontcolor=red:fontsize=30[tfi00] ; [t01]drawtext=fontfile=’arial’:text=’drtgfh’:fontcolor=red:fontsize=30[tfi01] ; [t10]drawtext=fontfile=’arial’:text=’uygfdsdsqds’:fontcolor=blue:fontsize=30[tfi10] ; [mv0][tfi00]overlay=x=55.0000:y=12.0000:shortest=1[mv0] ; [mv0][tfi01]overlay=x=55.0000:y=12.0000:shortest=1[mv0] ; [mv1][tfi10]overlay=x=55.0000:y=55.0000:shortest=1[mv1] ; [0]scale=500:500,setsar=sar=1[img0] ; [1]scale=500:500,setsar=sar=1[img1] ; [2]scale=40:50,setsar=sar=1[img2] ; [3]scale=500:500,setsar=sar=1[img3] ; [mv0][img0]overlay=20.0000:20.0000[mv01] ; [mv01][img1]overlay=12.0000:12.0000[mv02] ; [mv1][img2]overlay=20.0000:12.0000[mv12] ; [mv12][img3]overlay=55.0000:12.0000[mv13] ; [mv02]scale=1280:720,setsar=sar=1[fram0] ; [mv13]scale=1280:720,setsar=sar=1[fram1] ; [5]atrim=duration=10[a1] ; [fram0][fram1]concat=n=2:v=1:a=0[all]" -map [all] -map [a1] video-8.mp4’

• Discord.js Music bot "TypeError" when playing audio with dispatcher

  21 février 2020, par Cole Perry

  I’m new to Discord.js and I’m trying to have the bot join a voice channel and play an audio file on my computer. I have been following this guide : https://discord.js.org/#/docs/main/stable/topics/voice . Here is the Index.js page :

  Colesbot.on('message', message=>{
  
      if (message.content === '/join') {
  
          // Only try to join the sender's voice channel if they are in one themselves
  
          if (message.member.voiceChannel) {
  
              message.member.voiceChannel.join().then(connection => {
  
                  message.reply('I have successfully connected to the channel!');
  
  
  
                  // To play a file, we need to give an absolute path to it
  
                  const dispatcher = connection.playFile('C:\Users\bobal\Documents\GitHub\Spotify-Playlist-Discord-bot\Assets\Glory.mp3');
  
  
  
                  dispatcher.on('end', () => {
  
                      // The song has finished
  
                      console.log('Finished playing!');
  
                    });
  
  
  
                  dispatcher.on('error', e => {
  
                      // Catch any errors that may arise
  
                      console.log(e);
  
                    });
  
  
  
                    dispatcher.setVolume(0.5); // Set the volume to 50%
  
              }).catch(console.log);
  
      } else {
  
          message.reply('You need to join a voice channel first!');
  
        }
  
      }
  
   });
  
  exports.run = (client, message, args) => {
  
      let user = message.mentions.users.first || message.author;
  
  }

  FFMPEG is installed and I have set the environment path for it. When I type FFMPEG in the command line I get the proper response.

  Some have said I need to install the ffmpeg binaries but when I run npm install ffmpeg-binaries I get an error message that is here

  So then I tried installing an older version and I’m now using ffmpeg-binaries@3.2.2-3 but when I type /join I get the error

  [ERR_INVALID_ARG_TYPE]: The "file" argument must be of type string. Received type object