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• My own music bot randomly stops when playing a song, no errors, just like the song has ended

  18 avril 2019, par Stasio

  I made a discord music bot but there is one problem :
  When i play something it works perfectly for a moment but then sometimes music ends in the middle of the song just like the song has ended.
  When there are some songs in queue and this bug happens the bot starts playing another song from the queue. Im using ffmpeg, ytdl-core, simple-youtube-api,
  opusscript. What do u guys think about it ? I don’t think that this problem is caused by my code cuz this error happens randomly, sometimes 3 songs in a row are played normaly and sometimes it crashes in the middle of the 1 song, so he starts playing the next song in queue.

  const arg = msg.content.split(' ');
  
  const searchString = arg.slice(1).join(' ');
  
  const url = arg[1] ? arg[1].replace(/<(.+)>/g, '$1') : '';
  
  const serverQueue = queue.get(msg.guild.id);
  
  
  
  let command = msg.content.toLowerCase().split(' ')[0];
  
  command = command.slice(PREFIX.length)
  
  
  
  if (command === 'play' || command === 'p') {
  
  msg.delete()
  
  const voiceChannel = msg.member.voiceChannel;
  
  let emoji = msg.guild.emojis.find(x => x.name === "2Head")
  
      if (!voiceChannel) return msg.channel.send('Nie jesteś nawet na kanale głosowym zjebie ' + emoji);
  
      const permissions = voiceChannel.permissionsFor(msg.client.user);
  
      if (!permissions.has('CONNECT')) {
  
          return msg.channel.send('Nie mam permisji zeby sie polaczyc ;/');
  
      }
  
      if (!permissions.has('SPEAK')) {
  
          return msg.channel.send('Nie moge mowic odmutujcie mnie : )');
  
      }
  
  
  
      if (url.match(/^https?:\/\/(www.youtube.com|youtube.com)\/playlist(.*)$/)) {
  
          const playlist = await youtube.getPlaylist(url);
  
          const videos = await playlist.getVideos();
  
          for (const video of Object.values(videos)) {
  
              const video2 = await youtube.getVideoByID(video.id); 
  
              await handleVideo(video2, msg, voiceChannel, true); 
  
          }
  
          return msg.channel.send(`✅ Playlist: **${playlist.title}** has been added to the queue!`);
  
      } else {
  
          try {
  
              var video = await youtube.getVideo(url);
  
          } catch (error) {
  
              try {
  
                  var videos = await youtube.searchVideos(searchString, 1);
  
                  var video = await youtube.getVideoByID(videos[0].id);
  
              } catch (err) {
  
        console.error(err);
  
        let emoji = msg.guild.emojis.find(x => x.name === "autism")
  
                  return msg.channel.send('Nie ma takiego filmu na całym youtubie ' + emoji );
  
              }
  
          }
  
          return handleVideo(video, msg, voiceChannel);
  
      }
  
  } 

• mlt melt image slideshow from text file

  19 février 2019, par Rich

  On my site I have ffmpeg set up to convert a list of image paths from a text file into a slideshow like so —

  My text looks something like this (actual file names are not sequential) -

  ffconcat version 1.0
  
  file 'IMG.PNG'
  
  file 'IMG2.JPG'
  
  file 'IMG3.PNG/'

  And the paths from that file I send it to my ffmpeg command —

  ffmpeg -safe 0 -f concat -i paths.txt \
  
  -c:v libx264 -vsync vfr -pix_fmt yuv420p \
  
  -movflags +faststart -y output.mp4 2>&1

  It works fine, but now I am trying to do the same with the mlt/melt framework. Right now I have a simple command working with placeholder images —

  melt \
  
  placeholder.png length=200 \
  
  inside.png length=200 \
  
  placeholder.png length=200 \
  
  -consumer avformat:"output.mp4"

  Any ideas on how to send from a text file ?

• Input seeking for frame at specified timestamp with Py-AV

  9 décembre 2019, par neonScarecrow

  I have a project already using Py-AV and am trying to replicate a specific ffmpeg command. The goal is to get a frame roughly around the specified timestamp.

  Here’s the ffmpeg commmand :
  https://trac.ffmpeg.org/wiki/Seeking

  ffmpeg -ss 14 -i https://some_url.mp4 -frames:v 1 frame_at_14_seconds.jpg

  Here’s my code :

      #return one frame around 14 seconds into the movie
  
      target_sec = 14 
  
      container = av.open('https://some_url.mp4', 'r')
  
      container.streams.video[0].thread_type = 'AUTO'
  
      video_stream = next(s for s in container.streams if s.type == 'video')
  
      time_base = float(video_stream.time_base)
  
      target_timestamp = int(target_sec / time_base) + video_stream.start_time
  
      video_stream.seek(target_timestamp)
  
      for frame in container.decode(video_stream):
  
          frame.to_image().save('frame_at_14_seconds.jpg')
  
          break

  Additionally, I have found any documentation about this, but does anyone know if either command (ffmpeg/av.open) is downloading the entire file to a tmp file behind the scenes. I’m looking for a less memory-intensive way to read a frame for every second in an up to 60 second video.