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• Unable to find a suitable output format for 'ffmpeg' I/flutter (29205) : ffmpeg : Invalid argument

  24 juillet 2020, par Abhijit Rajmane

  I'm trying to mix two audio files using flutter_ffmpeg : 0.2.10 but I get

  


  [NULL @ 0xd77d4400] Unable to find a suitable output format for 'ffmpeg'
I/flutter (29205): ffmpeg: Invalid argument

code : 
String file1= _localPath+"/file1.m4a";
String file2= _localPath+"/file2.mp3";
String output= _localPath+"/abhijit.wav";

String finalPath= "ffmpeg -i "+ file1 +" -i "+file2+" -filter_complex amix=inputs=2:duration=first:dropout_transition=0 "+output;

console ffmpeg's message...
I/flutter (29205):   libavutil      56. 38.100 / 56. 38.100
I/flutter (29205):   libavcodec     58. 65.102 / 58. 65.102
I/flutter (29205):   libavformat    58. 35.101 / 58. 35.101
I/flutter (29205):   libavdevice    58.  9.103 / 58.  9.103
I/flutter (29205):   libavfilter     7. 70.101 /  7. 70.101
I/flutter (29205):   libswscale      5.  6.100 /  5.  6.100
I/flutter (29205):   libswresample   3.  6.100 /  3.  6.100
I/flutter (29205): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.arthenica.flutter.ffmpeg.FlutterFFmpegExample/files/Download/file1.m4a':
I/flutter (29205):   Metadata:
I/flutter (29205):     major_brand     : mp42
I/flutter (29205):     minor_version   : 1
I/flutter (29205):     compatible_brands: isommp41mp42
I/flutter (29205):     creation_time   : 2020-07-09T15:42:47.000000Z
I/flutter (29205):   Duration: 00:12:12.26, start: 0.000000, bitrate: 61 kb/s
I/flutter (29205):     Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 60 kb/s (default)
I/flutter (29205):     Metadata:
I/flutter (29205):       creation_time   : 2020-07-09T15:42:47.000000Z
I/flutter (29205):       handler_name    : Core Media Audio
I/flutter (29205): Input #1, mp3, from '/storage/emulated/0/Android/data/com.arthenica.flutter.ffmpeg.FlutterFFmpegExample/files/Download/file2.mp3':
I/flutter (29205):   Metadata:
I/flutter (29205):     artist          : SoundHelix
I/flutter (29205):     genre           : Techno
I/flutter (29205):     encoder         : Lavf58.20.100
I/flutter (29205):   Duration: 00:00:23.12, start: 0.011995, bitrate: 192 kb/s
I/flutter (29205):     Stream #1:0: Audio: mp3, 44100 Hz, stereo, fltp, 192 kb/s
I/flutter (29205):     Metadata:
I/flutter (29205):       encoder         : Lavf
I/flutter (29205): [NULL @ 0xd77d4400] Unable to find a suitable output format for 'ffmpeg'
I/flutter (29205): ffmpeg: Invalid argument
I/flutter (29205): "
I/flutter (29205): New FFmpeg pipe: /data/user/0/com.arthenica.flutter.ffmpeg.FlutterFFmpegExample/cache/mf_pipe_7
I/flutter (29205): FFmpeg process exited with rc 1


  


  Please check command of FFmpeg and suggest me if any correction occur, Unable to find a suitable output format for 'ffmpeg' I/flutter (29205) : ffmpeg : Invalid argument
I have no idea about this error please help me

  


• Why is my discord.py bot not having voice while being hosted on Heroku ?

  24 juillet 2020, par Flying Thunder

  My bot is all set up and running, everything works, EXCEPT for voice : He joins the channel, but doesnt play audio. I have heard many different claims for what the reason is (no permission to use ffmpeg.exe, missing buildpack, missing dependency, Heroku blocking UDP on free users...) - but i hope that someone here ACTUALLY knows what the problem is, because i couldnt find any definitive reason online.

  


  This is the code of the bot : https://github.com/FlyingThunder/DiscordBot/blob/master/main.py
Everything is working fine on my machine.
This is the only error that Heroku logs gave me :
2020-07-24T06:28:30.329937+00:00 app[worker.1]: PermissionError: [Errno 13] Permission denied: 'res/ffmpeg.exe'

  


  I already tried adding https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git to my buildpacks, and i added cffi==1.14.0 to my requirements.txt - both solutions that are supposed to fix this exact issue.

  


• Which directory should i put FFmpeg ? [duplicate]

  25 juillet 2020, par Panda Gaming23

  I am making a discord bot and I get the following error

  


  node:4) UnhandledPromiseRejectionWarning: Error: FFmpeg/avconv not found!

2020-07-25T01:00:13.991518+00:00 app[worker.1]:     at Function.getInfo (/app/node_modules/prism-media/src/core/FFmpeg.js:130:11)

2020-07-25T01:00:13.991519+00:00 app[worker.1]:     at Function.create (/app/node_modules/prism-media/src/core/FFmpeg.js:143:38)

2020-07-25T01:00:13.991519+00:00 app[worker.1]:     at new FFmpeg (/app/node_modules/prism-media/src/core/FFmpeg.js:44:27)

2020-07-25T01:00:13.991520+00:00 app[worker.1]:     at AudioPlayer.playUnknown (/app/node_modules/discord.js/src/client/voice/player/BasePlayer.js:47:20)

2020-07-25T01:00:13.991520+00:00 app[worker.1]:     at VoiceConnection.play (/app/node_modules/discord.js/src/client/voice/util/PlayInterface.js:71:28)

2020-07-25T01:00:13.991522+00:00 app[worker.1]:     at play (/app/commands/play.js:14:34)

2020-07-25T01:00:13.991522+00:00 app[worker.1]:     at /app/commands/play.js:42:5

2020-07-25T01:00:13.991522+00:00 app[worker.1]:     at processTicksAndRejections (internal/process/task_queues.js:97:5)

2020-07-25T01:00:13.991629+00:00 app[worker.1]: (node:4) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 6)



  


  Here is the code

  


  const ytdl = require("ytdl-core");
const Discord = require("discord.js");

var servers = {};

module.exports = {
  name: "play",
  description: "this is a music play command!",
  execute(message, args) {
  
  function play(connection, message) {
        var server = servers[message.guild.id];
        
        server.dispatcher = connection.play(ytdl(server.queue[0], {filter: "audioonly"}));
        
        server.queue.shift();
        
        server.dispatcher.on("end", function () {
            if(server.queue[0]){
                play(connection, message);
            }
            else {connection.disconnect();}
        })
    }
    if (!args[0]) {
      message.channel.send("you need to provide a link!");
      return;
    }

    if (!message.member.voice.channel) {
      message.channel.send("you must be in ||a|| voice channel to play the bot!");
      return;
    }

    if (!servers[message.guild.id]) servers[message.guild.id] = { queue: [] };
    
    var server = servers[message.guild.id];
    
    server.queue.push(args[0]);
     
    if (!message.member.voice.connection) message.member.voice.channel.join().then(function(connection) {
    play(connection, message);
    })
  },
};


  


  I would like to know which directory I should put FFmpeg.

  


  I would also like to know if the FFmpeg executable has to be in a folder or compressed or if i can just place the executable in a certain directory

  


  I am hosting my bot using Heroku on a Mac using Discord.js V12

  


  Please help.

  


  Thanks !