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• Python : movie stream into pygame

  4 mars 2019, par user1533267

  Quick challenge :

  I’m streaming part of my desktop screen trough the network using the following :

  Server

  $ ffmpeg -f x11grab -s 800x600 -r 30 -i :100 -an -q 10 -f mjpeg - | nc -lp 5000 

  Client

  $ nc <computer address="address"> 5000 | ffplay -
  
  </computer>

  I would like to display the following stream inside my pygame opengl window on the client, I read some documents on pygame.movie and found :

  "Load a new MPEG movie stream from a file or a python file object."

  Would it be possible to load the stream into pygame ?
  I need it to be as responsive as possible, and right now im seeing about 500ms lag.

  Any ideas ?

  Thanks.

• Doubts in the development of a music bot for discord, using DSharpPlus and ffmpeg

  21 avril 2018, par Vralago

  I have been making a bot for Discord, and recently I thought about adding the music system. Well I even understand how it works but also have some things that I’m not understanding how I should do it (I’m using the DiscordSharpPlus api), for example putting the music on pause (bearing in mind that ffmpeg continues to read the music).

  So I wanted to know if anyone can explain me or tell me how I should do it or how it works, given that it is my first time using ffmpeg and I do not know all the functions of the program.

  If it is necessary, there is the code where the ffmpeg is and the sending of data to the discord.

  public static async Task AddMusicFromYoutube(VoiceNextConnection vnc, CommandContext ctx, string url)
  
  {
  
      string fileName = "";
  
  
  
      if (url.ToLower().Contains("youtube.com"))
  
      {
  
          fileName = await DownloadFromYouTube(url);
  
          if (fileName == string.Empty) return;
  
  
  
          await ctx.RespondAsync($"Playing for **Youtube** -> `{url}`");
  
          await vnc.SendSpeakingAsync(true);
  
  
  
          var ffmpeg_pro = new ProcessStartInfo
  
          {
  
              FileName = "Libs/ffmpeg",
  
              Arguments = $@"-xerror -i ""{fileName}.mp3"" -ac 2 -f s16le -ar 48000 pipe:1",
  
              RedirectStandardOutput = true,
  
              UseShellExecute = false
  
          };
  
          var ffmpeg = Process.Start(ffmpeg_pro);
  
  
  
          Stream ffout = ffmpeg.StandardOutput.BaseStream;
  
  
  
          using (var ms = new MemoryStream())
  
          {
  
              await ffout.CopyToAsync(ms);
  
              ms.Position = 0;
  
  
  
              var buff = new byte[3840];
  
              var br = 0;
  
              while ((br = ms.Read(buff, 0, buff.Length)) > 0)
  
              {
  
                  if (br < buff.Length)
  
                      for (var i = br; i < buff.Length; i++)
  
                          buff[i] = 0;
  
  
  
                  await vnc.SendAsync(buff, 20); // Send PCM date for discord
  
  
  
                  //tentativa de parar a musica
  
                  if (Program.IsPuased)
  
                  {
  
                      while (Program.IsPuased)
  
                      {
  
                      }
  
                  }
  
              }
  
  
  
              ms.Close();
  
          }
  
          await vnc.SendSpeakingAsync(false);
  
      }
  
      else
  
      {
  
          await ctx.RespondAsync($"{ctx.Member.Mention}, por agora só aceito link's do Youtube!");
  
          return;
  
      }
  
  }

• mpegts : do not export empty language tags

  21 juillet 2014, par Jan Gerber

  mpegts : do not export empty language tags
  Signed-off-by : Anton Khirnov <anton@khirnov.net>
  

  • [DBH] libavformat/mpegts.c