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• Discord.py music_cog, bot joins channel but plays no sound

  20 juin 2021, par Ozzy

  I have started using python a week ago or so. I have watched all the related videos on YT and checked google pages etc. But still no luck. My bot perfectly joins to the voice channel and when i use play it downloads and presumebly starts the play function but there is no sound or anything, it just joins and waits 1-2 mins then leaves with timeout error.

  


  from discord.ext import commands
import logging

from youtube_dl import YoutubeDL

logging.basicConfig(level=logging.INFO)


class music_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

        # all the music related stuff
        self.is_playing = False

        # 2d array containing [song, channel]
        self.music_queue = []
        self.YDL_OPTIONS = {'format': 'bestaudio', 'noplaylist': 'True', 'no_warnings': 'False'}
        self.FFMPEG_OPTIONS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
                               'options': '-vn'}

        self.vc = ""

    # searching the item on youtube
    def search_yt(self, item):
        with YoutubeDL(self.YDL_OPTIONS) as ydl:
            try:
                info = ydl.extract_info("ytsearch:%s" % item, download=False)['entries'][0]
            except Exception:
                return False

        return {'source': info['formats'][0]['url'], 'title': info['title']}

    def play_next(self):
        if len(self.music_queue) > 0:
            self.is_playing = True

            # get the first url
            m_url = self.music_queue[0][0]['source']

            # remove the first element as you are currently playing it
            self.music_queue.pop(0)

            self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
        else:
            self.is_playing = False

    # infinite loop checking
    async def play_music(self):
        if len(self.music_queue) > 0:
            self.is_playing = True

            m_url = self.music_queue[0][0]['source']

            # try to connect to voice channel if you are not already connected

            if self.vc == "" or not self.vc.is_connected() or self.vc == None:
                self.vc = await self.music_queue[0][1].channel.connect()
            else:
                await self.vc.move_to(self.music_queue[0][1])

            print(self.music_queue)
            # remove the first element as you are currently playing it
            self.music_queue.pop(0)

            self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
        else:
            self.is_playing = False

    @commands.command(name="play", help="Plays a selected song from youtube")
    async def p(self, ctx, *args):
        query = " ".join(args)

        voice_channel = ctx.author.voice
        if voice_channel is None:
            # you need to be connected so that the bot knows where to go
            await ctx.send("Connect to a voice channel!")
        else:
            song = self.search_yt(query)
            if type(song) == type(True):
                await ctx.send(
                    "Could not download the song. Incorrect format try another keyword. This could be due to playlist or a livestream format.")
            else:
                await ctx.send("Song added to the queue")
                self.music_queue.append([song, voice_channel])

                if self.is_playing == False:
                    await self.play_music()

    @commands.command(name="queue", help="Displays the current songs in queue")
    async def q(self, ctx):
        retval = ""
        for i in range(0, len(self.music_queue)):
            retval += self.music_queue[i][0]['title'] + "\n"

        print(retval)
        if retval != "":
            await ctx.send(retval)
        else:
            await ctx.send("No music in queue")

    @commands.command(name="skip", help="Skips the current song being played")
    async def skip(self, ctx):
        if self.vc != "" and self.vc:
            self.vc.stop()
            await ctx.send("Stopped!")
            # try to play next in the queue if it exists
            await self.play_music()
            await ctx.send("Skipped!")


def setup(bot):
    bot.add_cog(music_cog(bot))


  


  I enabled logs to be sure, when it connects there's just that info :

  


  INFO:discord.voice_client:Connecting to voice... | INFO:discord.voice_client:Starting voice handshake... (connection attempt 1)

  


  I have also checked FFMPEG and its Path, tried different codes and methods but even though they work there is no sound. Also I installed discord.py[voice] too.

  


  I appreciate help already, thanks.

  


• Mp4 Video File not playing after downloading using Content Disposition php but it plays when it streams directly from the server

  1er juin 2021, par Razor Rassh

  I'm trying to combine a video and audio file using the FFMPEG and it worked successfully for me. The FFMPEG successfully created the MP4 file in the target destination folder. When I'm trying to download the Video file from the destination folder using Content-Disposition in Php. The server successfully downloads the Video file from the exact target folder.

  


  The problem is that when I'm trying to play the video using VLC or any other player, nothing happened. The VLC player just launched and do nothing. I checked the downloaded file size with the video file located on the server and found that they both are the same size.

  


  The code I used for creating Video file and content disposition is,

  


        
      $downloadFolderPath = "/var/www/html/temp/{$downloadFolderName}";
      $result = mkdir($downloadFolderPath, 0777);     
      $downloadFileName = "$downloadFolderPath/$filename";
      //echo $downloadFileName;
      $command = $ffmpeglocation." -i $audio_link -i $link -c:v copy -c:a aac -preset fast -crf 20 $downloadFileName 2>&1";
      shell_exec($command);

      $file=fopen($downloadFileName,'r');
      header("Content-Type:video/mp4");
    
      header("Content-Disposition: attachment; filename=$filename");
         
      header('Content-Description: File Transfer');
      header('Content-Type: application/octet-stream');
       
      header('Content-Disposition: attachment; filename="'.basename($downloadFileName).'"');
      header('Expires: 0');
      header('Cache-Control: must-revalidate');
      header('Pragma: public'); 
      header('Content-Length: ' . filesize($downloadFileName)); 
      flush(); // Flush system output buffer
      readfile($downloadFileName);    
      die();


  


  The above code did its purpose by properly downloading the video file hosted on the server. But after downloading, the video file is not playing. I tried to access the file directly through the URL of the file in the browser and it plays fluently in the browser.

  


  Help me out. Sorry for the bad english.

  


• HLS stream plays in VLC not in Safari

  7 janvier 2021, par Myles McDonnell

  I have created a HLS stream using FFMPEG using this command :

  


  ffmpeg -i 10-brass-in-pocket.flac -map 0:a -map 0:a -map 0:a -map 0:a -c:a:0 flac -c:a:1 aac -c:a:2 aac -c:a:3 aac -b:a:1 320k -b:a:2 160k -b:a:3 96k -f hls -hls_playlist_type vod -master_pl_name master.m3u8 -var_stream_map "a:0 a:1 a:2 a:3" stream_%v.m3u8

  


  see master playlist here : https://di5wym8npn4cm.cloudfront.net/ffmpeg/master.m3u8

  


  It has for sub-streams ;

  


  

  • 1 FLAC @ 44.1Hz / 16bit

  


  • 2 AAC-LC 320

  


  • 3 AAC-LC 160

  


  • 4 AAC-LC 96

  


  


  It works if I play that URL in VLC but if I use that URL in a HTML5 control and load in Safari the loader spins and I can see from the dev tools the data being pulled down but it doesn't play, see here : https://di5wym8npn4cm.cloudfront.net/ffmpeg/index.html

  


  Why doesn't this play in Safari and how can I debug this ?