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• Getting accurate time from FFMPeg with Objective C (Audio Queue Services)

  2 avril 2012, par Winston

  My iPhone app plays an audio file using FFMPeg.

  I'm getting the elapsed time (to show to user) from the playing audio (in minutes and seconds after converting from microseconds, given by FFMPeg) like so :

  AudioTimeStamp currentTimeStamp;
  
  AudioQueueGetCurrentTime (audioQueue, NULL, &currentTimeStamp, NULL);
  
  
  
  getFFMPEGtime = currentTimeStamp.mSampleTime/self.basicAudioDescription.mSampleRate;
  
  
  
  self.currentAudioTime = [NSString stringWithFormat: @"%02d:%02d",
  
                              (int) getFFMPEGtime / (int)60000000,
  
                              (int) ((getFFMPEGtime % 60000000)/1000000)];

  Everything works fine, but when I scrub back or forward to play another portion of the song, the elapsed time will go back to zero, no matter the current position. The timer will always zero out.

  I know I'm suposed to do some math to keep track of the old time and the new time, maybe constructing another clock or so, perhaps implementing another callback function, etc... I'm not sure what way I should go.

  My questions are :

  1) What's the best approach to keep track of the elapsed time when going back/forward in a song, avoiding the clock to always going back to zero ?

  2) Should I look deeply into FFMPeg functions or should I stick with Objective-C and Cocoa Touch for solving this problem ?

  Please, I need some advices/ideas from experienced programmers. I'm stuck. Thanks beforehand !

• My discord music bot works locally, but not on a server [closed]

  8 décembre 2022, par Asmondya

  I have an issue with my discord music bot that I made with discord.js v14.

  


  When I run it locally, it works fine and plays music as it should. But when I put in on a server (here I use Vultr), it doesn't work.

  


  I am not sure but it might come from FFmpeg. I am kinda desperate and cant really figure where the issue is from. I think it is FFmpeg because it is what converts the music.

  


  What happens :

  


  Me: !play a music
Bot: Now playing a music
*and right after, without playing the music*
Bot: Music finished


  


  What should normally happen is that same thing but the "music finished" should be sent when the queue is finished.

  


  The thing is that the bot works perfectly locally, but does this when it is hosted on a server. Also I don't have any error messages or else. It just doesn't play the music like if the music was 0 seconds length.

  


  I tried making sure everything is installed on the server, same as making sure ffmpeg was installed globally and I have the good version of it. Here is the answer I have to the "ffmpeg -version" command :enter image description here.

  


  Does anyone know what could be the issue or what could cause it ? I can show some code if needed, even tho it works perfectly fine locally.

  


  Here's my code :

  


  const { DisTube } = require('distube')
const Discord = require('discord.js')
const { EmbedBuilder } = require('discord.js')
const client = new Discord.Client({
  intents: [
    Discord.GatewayIntentBits.Guilds,
    Discord.GatewayIntentBits.GuildMessages,
    Discord.GatewayIntentBits.GuildVoiceStates,
    Discord.GatewayIntentBits.MessageContent,
  ]
})
const { ActivityType } = require('discord.js')
const fs = require('fs')
const dotenv = require("dotenv")
dotenv.config()
const { SpotifyPlugin } = require('@distube/spotify')
const { SoundCloudPlugin } = require('@distube/soundcloud')
const { YtDlpPlugin } = require('@distube/yt-dlp')

client.distube = new DisTube(client, {
  leaveOnStop: false,
  emitNewSongOnly: true,
  emitAddSongWhenCreatingQueue: false,
  emitAddListWhenCreatingQueue: false,
  plugins: [
    new SpotifyPlugin({
      emitEventsAfterFetching: true
    }),
    new SoundCloudPlugin(),
    new YtDlpPlugin()
  ]
})
client.commands = new Discord.Collection()
client.aliases = new Discord.Collection()

fs.readdir('./commands/', (err, files) => {
  if (err) return console.log('Could not find any commands!')
  const jsFiles = files.filter(f => f.split('.').pop() === 'js')
  if (jsFiles.length <= 0) return console.log('Could not find any commands!')
  jsFiles.forEach(file => {
    const cmd = require(`./commands/${file}`)
    console.log(`Loaded ${file}`)
    client.commands.set(cmd.name, cmd)
    if (cmd.aliases) cmd.aliases.forEach(alias => client.aliases.set(alias, cmd.name))
  })
})

client.on('ready', () => {
  console.log(`${client.user.tag} is ready to play music.`)
})

client.on('messageCreate', async message => {
  if (message.author.bot || !message.guild) return
  const prefix = "!"
  if (!message.content.startsWith(prefix)) return
  const args = message.content.slice(prefix.length).trim().split(/ +/g)
  const command = args.shift().toLowerCase()
  const cmd = client.commands.get(command) || client.commands.get(client.aliases.get(command))
  if (!cmd) return
  if (cmd.inVoiceChannel && !message.member.voice.channel) {
    return message.channel.send(`You must be in a voice channel!`)
  }
  try {
    cmd.run(client, message, args)
  } catch (e) {
    console.error(e)
    message.channel.send(`Error: \`${e}\``)
  }
})

// Add filters to the queue status :
// | Filter: \`${queue.filters.names.join(', ') || 'Off'}\` 

const status = queue =>
  `Volume: \`${queue.volume}%\` | Loop: \`${
    queue.repeatMode ? (queue.repeatMode === 2 ? 'All Queue' : 'This Song') : 'Off'
  }\` | Autoplay: \`${queue.autoplay ? 'On' : 'Off'}\``
client.distube
  .on('playSong', (queue, song) =>
    queue.textChannel.send({
      embeds: [
        new Discord.EmbedBuilder()
          .setTitle('Now playing')
          .setDescription(`\`${song.name}\` - \`${song.formattedDuration}\`\n${status(queue)}\n\nRequested by: \`${song.user.tag}\``)
          .setThumbnail(`${song.thumbnail}`)
      ]
    })
  )
  .on('addSong', (queue, song) =>
    queue.textChannel.send({
      embeds: [
        new Discord.EmbedBuilder()
          .setTitle('Song added to the queue')
          .setDescription(`${song.name} - \`${song.formattedDuration}\`\n\nRequested by: \`${song.user.tag}\``)
          .setThumbnail(`${song.thumbnail}`)
      ]
    })
  )
  .on('addList', (queue, playlist) =>
    queue.textChannel.send({
      embeds: [
        new Discord.EmbedBuilder()
          .setTitle(`Playlist added to the queue`)
          .setDescription(`\`${playlist.name}\` (${
            playlist.songs.length
          } songs)\n${status(queue)}\n\nRequested by: \`${song.user.tag}\``)
          .setThumbnail(`${song.thumbnail}`)
      ]
    })
  )
  .on('error', (channel, e) => {
    if (channel) channel.send(`An error encountered: ${e.toString().slice(0, 1974)}`)
    else console.error(e)
  })
  .on('empty', channel => channel.send('There is no one here. Im alone, again...'))
  .on('searchNoResult', (message, query) =>
    message.channel.send(`No result found for \`${query}\`!`)
  )
  .on('finish', queue => queue.textChannel.send("https://tenor.com/view/end-thats-all-folks-gif-10601784"))

client.on("ready", () => {
  client.user.setPresence({
      activities: [{
        name: 'AURORA',
        type: ActivityType.Listening
      }],
      status: "idle"
  })
})

client.login(process.env.TOKEN)


  


  It does come from my ffpmeg, I need to install one of these packages instead of the npm installation : https://github.com/BtbN/FFmpeg-Builds/releases

  


  How do I install it on a server (Vultr) ?

  


• lavf doxy : add some general lavf information.

  11 décembre 2011, par Anton Khirnov

  lavf doxy : add some general lavf information.