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• Discord bot : Fix ‘FFMPEG not found’

  14 mars, par Travis Sova

  I want to make my Discord bot join voice chat, but every time I run the command, I get an error message in the log(cmd) saying, FFMPEG not found.

  


  Picture of the error :

  


  

  


  This is the code :

  


  client.on('message', message => {
  // Voice only works in guilds, if the message does not come from a guild,
  // we ignore it
  if (!message.guild) return;

  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 => { // Connection is an instance of VoiceConnection
          message.reply('I have successfully connected to the channel!');
        })
        .catch(console.log);
    } else {
      message.reply('You need to join a voice channel first!');
    }
  }
});


  


  this is my package.json file :

  


  {
  "name": "x",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "start": "node index.js",
    "dev": "nodemon index.js"
  },
  "dependencies": {
    "discord.js": "^11.4.2",
    "dotenv": "^6.2.0",
    "ffmpeg": "0.0.4",
    "opusscript": "0.0.6"
  },
  "devDependencies": {
    "nodemon": "^1.18.9"
  }
}


  


• [C++][Linux + ffmpeg + h264 + rtsp + client] and [Window + ffmpeg + play video real time + server]

  21 avril 2015, par QuestionGuy

  I have a problem with ffmpeg and I don’t know how to continue. I have 2 computers :

  Client :

  • Run Ubuntu 14.04
  • FFmpeg installed
  • Use c++ language
  • Features : use ffmpeg to encode h264 video data from webcam of client laptop, then real time streaming to server

  Server :

  • Running Windows 7
  • FFmpeg installed
  • Use c++ language (MFC)
  • Features : Get real time data from client and show it on screen.

  I’ve just connected client to server and they can chat text data together, and I don’t have any idea to make real time video work.

  And my questions are :

  1. [Client] How to get video from webcam on laptop (using ffmpeg code), save it to buffer (raw data), encode it and send to server ?

     I use ffmpeg to get video from wc but it save to file. I really don’t want it. Code is :

     ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/video0 output.mkv

  2. [Client] How to get raw data from client, decode it and play it ?

     I have an idea to play it by using directshow in MFC.

• avformat/matroskaenc : Remove unnecessary avio_tell(), avio_seek()

  22 janvier 2020, par Andreas Rheinhardt

  avformat/matroskaenc : Remove unnecessary avio_tell(), avio_seek()
  avio_close_dyn_buf() has a bug : When the write pointer does not point to
  
  the end of the written data when calling it (i.e. when one has performed
  
  a seek back to update already written data), it would not add padding to
  
  the end of the buffer, but to the current position, overwriting other
  
  data ; furthermore the reported size would be wrong (off by the amount of
  
  data it has overwritten with padding).
  In order not to run into this when updating already written elements or
  
  elements for which size has only been reserved, the Matroska muxer would
  
  first record the current position of the dynamic buffer, then seek to
  
  the desired position, perform the update and seek back to the earlier
  
  position.
  But now that end_ebml_master_crc32() does not make use of
  
  avio_close_dyn_buf() any more, this is no longer necessary.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/matroskaenc.c