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• avcodec/proresenc_anatoliy : support for more color matrix for proresenc

  5 novembre 2019, par Limin Wang

  avcodec/proresenc_anatoliy : support for more color matrix for proresenc
  Please tested with below command :
  
  ./ffmpeg -i ../fate-suite/mpeg2/t.mpg  -c:v prores_aw -color_primaries bt2020 -colorspace bt2020_ncl -color_trc smpte2084 -an output.mov
  mediainfo outout.mov
  
  ...
  
  Color primaries : BT.2020
  
  Transfer characteristics : PQ
  
  Matrix coefficients : BT.2020 non-constant
  ./ffmpeg -i ../fate-suite/mpeg2/t.mpg  -c:v prores_aw -color_primaries bt2020 -colorspace bt2020_ncl -color_trc arib-std-b67 -an output.mov
  
  mediainfo outout.mov
  
  ...
  
  Color primaries : BT.2020
  
  Transfer characteristics : HLG
  
  Matrix coefficients : BT.2020 non-constant
  Signed-off-by : Limin Wang <lance.lmwang@gmail.com>
  

  • [DH] libavcodec/proresenc_anatoliy.c

• FFMPEG not found error while attempting to implement ffmpeg into discord bot

  17 février 2020, par Ravenr_

  While implementing a music feature into my node.js discord.js discord bot, I got an error claiming that it cant find FFMPEG. I reinstalled ffmpeg 3 times to no avail.

  This is the full error

  2020-02-17T01:48:30.403766+00:00 app[worker.1]: (node:4) UnhandledPromiseRejectionWarning: Error: FFMPEG not found
  
  2020-02-17T01:48:30.403797+00:00 app[worker.1]:     at Function.selectFfmpegCommand (/app/node_modules/prism-media/src/transcoders/ffmpeg/Ffmpeg.js:46:13)
  
  2020-02-17T01:48:30.403798+00:00 app[worker.1]:     at new FfmpegTranscoder (/app/node_modules/prism-media/src/transcoders/ffmpeg/Ffmpeg.js:7:37)
  
  2020-02-17T01:48:30.403798+00:00 app[worker.1]:     at new MediaTranscoder (/app/node_modules/prism-media/src/transcoders/MediaTranscoder.js:10:19)
  
  2020-02-17T01:48:30.403799+00:00 app[worker.1]:     at new Prism (/app/node_modules/prism-media/src/Prism.js:5:23)
  
  2020-02-17T01:48:30.403799+00:00 app[worker.1]:     at new VoiceConnection (/app/node_modules/discord.js/src/client/voice/VoiceConnection.js:46:18)
  
  2020-02-17T01:48:30.403800+00:00 app[worker.1]:     at /app/node_modules/discord.js/src/client/voice/ClientVoiceManager.js:63:22
  
  2020-02-17T01:48:30.403800+00:00 app[worker.1]:     at new Promise (<anonymous>)
  
  2020-02-17T01:48:30.403801+00:00 app[worker.1]:     at ClientVoiceManager.joinChannel (/app/node_modules/discord.js/src/client/voice/ClientVoiceManager.js:45:12)
  
  2020-02-17T01:48:30.403801+00:00 app[worker.1]:     at VoiceChannel.join (/app/node_modules/discord.js/src/structures/VoiceChannel.js:130:30)
  
  2020-02-17T01:48:30.403802+00:00 app[worker.1]:     at Object.execute (/app/commands/play.js:31:64)
  
  2020-02-17T01:48:30.404044+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: 2)
  
  2020-02-17T01:48:30.404052+00:00 app[worker.1]: (node:4) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
  
  </anonymous>

  This is the code

  const ytdl = require("ytdl-core");
  
  module.exports = {
  
      name: 'play',
  
      description: 'initiates music methods of the bot',
  
      execute(msg, args){
  
          var servers = {};
  
  
  
          function play(connection, msg){
  
              var server = servers[msg.guild.id];
  
  
  
              server.dispatcher = connection.playStream(ytdl(server.queue[0], {filter: "audioonly"}));
  
              server.queue.shift();
  
  
  
              server.dispatcher.on("end", function(){
  
                  if(server.queue[0]){
  
                      play(connection, msg);
  
                  }else{
  
                      connection.disconnect();
  
                  }
  
              });
  
  
  
  
  
          }
  
          if(!args[1]) return msg.channel.send("you need to provide a link");
  
          if(!msg.member.voiceChannel) return msg.channel.send("You must be in a voice channel to use this feature");
  
          if(!servers[msg.guild.id]) servers[msg.guild.id] = {
  
              queue: []
  
          }
  
          var server = servers[msg.guild.id];
  
          server.queue.push(args[1]);
  
          if(!msg.guild.voiceConnection) msg.member.voiceChannel.join().then(function(connection){
  
              play(connection, msg);
  
          })
  
      }
  
  }

  I have no idea what the issue is. I am using heroku to deploy if that matters at all.

• Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  28 août 2020, par bbdangar

  I am using this library : com.arthenica:mobile-ffmpeg-full:4.4

  


  Getting this error message while running the command :

  


  final String command = "-y -i "+ inputPath +" -ar 22050 -hls_list_size 1000000 -hls_time 2 -s 640x360 " + outputPath;


  


  here is the complete code :

  


  private void convertVideo() {
        String inputPath = "/storage/emulated/0/Download/video.mp4";
        String outputPath = "/storage/emulated/0/Download/output.m3u8";
        final String command = "-y -i "+ inputPath +" -ar 22050 -hls_list_size 1000000 -hls_time 2 -s 640x360 " + outputPath;
        FFmpeg.executeAsync(command, new ExecuteCallback() {
            @Override
            public void apply(long executionId, int returnCode) {

                if (returnCode == RETURN_CODE_SUCCESS) {
                    Log.i(TAG, "Command execution completed successfully.");
                } else if (returnCode == RETURN_CODE_CANCEL) {
                    Log.i(TAG, "Command execution cancelled by user.");
                } else {
                    Log.i(TAG, String.format("Command execution failed with rc=%d and the output below.", returnCode));
                    Config.printLastCommandOutput(Log.INFO);
                }
            }
        });

    }


  


  here is output log :

  


  2020-08-28 07:05:59.355 10725-10820 W/mobile-ffmpeg: [graph 0 input from stream 0:0 @ 0xe2306c80] sws_param option is deprecated and ignored
2020-08-28 07:05:59.448 10725-10820 E/mobile-ffmpeg: [h264_v4l2m2m @ 0xcb442c00] can't configure encoder
2020-08-28 07:05:59.448 10725-10820 E/mobile-ffmpeg: Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
2020-08-28 07:05:59.463 10725-10820 I/mobile-ffmpeg: Conversion failed!
2020-08-28 07:05:59.465 10725-10725 I/mobile-ffmpeg: ffmpeg version v4.4-dev-416 Copyright (c) 2000-2020 the FFmpeg developers