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• FFmpegPCMAudio not playing in discord no error

  9 mars 2023, par Anton Abboud

  Okey, it might be something obvious that ive missed but i really can't find the issue. I am currently making a discord-music-bot which has worked fine before. However as soon as i moved over to yt-dlp from youtube-dl (due to an error with youtube-dl) FFmpegPCMAudio doesn't play the music. It read through the code like normal but it simply doesn't play the sound. It even downloads the music from youtube so I am a bit confused. Here is what my code looks like :

  


  class music_cog(commands.Cog):
    
     #Searching the keyword on youtube
    def search_yt(self, item):
        with yt_dlp.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
            my_url = self.music_queue[0][0]['source']

            global current_song_title
            current_song_title = self.music_queue[0][0]['title']

            #Remove the first song in queue as you are currently playing it
            self.music_queue.pop(0)

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

    # Infinite loop checking if there is a song in queue
    async def play_music(self, ctx):
        if len(self.music_queue) > 0:
            self.is_playing = True
            my_url = self.music_queue[0][0]['source']
            
            global current_song_title
            current_song_title = self.music_queue[0][0]['title']
            
            #Try to connect to voice channel if bot is not already connected
            if self.vc == None or not self.vc.is_connected():
                self.vc = await self.music_queue[0][1].connect()

                #In case the bot fails to connect
                if self.vc == None:
                    await ctx.send("Could not connect to the voice channel")
                    return
            else:
                await self.vc.move_to(self.music_queue[0][1])
            
            self.music_queue.pop(0)
            print("hello")
            self.vc.play(nextcord.FFmpegPCMAudio(my_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
            
        else:
            self.is_playing = False

    @commands.command(name="play", aliases=["p"], help="Plays a selected song from youtube")
    async def play(self, ctx, *args):
        query = " ".join(args)
        
        if ctx.author.voice is None:
            #User needs to be connected so that the bot knows where to go
            await ctx.send("Connect to a voice channel!")
        
        elif self.is_paused:
            self.vc.resume()
        
        else:
            global song
            song = self.search_yt(query)
            if type(song) == type(True):
                #In case the song is not able to download
                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(f"{song['title']} added to the queue, and gets played if nothing else is in the queue or currently playing")
                voice_channel = ctx.author.voice.channel
                self.music_queue.append([song, voice_channel])
                
                if self.is_playing == False:
                    await self.play_music(ctx)


  


  I have tried searching on how to use FFmpeg even though I have made it work before. but I haven't found anything of use. I wanted to convert back to youtube-dl but realized that it still won't work because of an issue in thier code. I can't really try anything else since im not getting an error. The terminal displays :

  


  [youtube:search] Extracting URL: ytsearch:heh 
[download] Downloading playlist: heh 
[youtube:search] query "heh": Downloading web client config
[youtube:search] query "heh" page 1: Downloading API JSON 
[youtube:search] Playlist heh: Downloading 1 items of 1 
[download] Downloading item 1 of 1
[youtube] Extracting URL: https://www.youtube.com/watch?v=8EhaZG7i9Bk
[youtube] 8EhaZG7i9Bk: Downloading webpage
[youtube] 8EhaZG7i9Bk: Downloading android player API JSON 
[download] Finished downloading playlist: heh 
hello


  


  I used "heh" as an example searchword and "hello" to check if the code actually read what it where it is supposed to play the audio.

  


  Please help !

  


• Merging video and audio stream, where audio drifts

  22 avril 2015, par TL_IPD

  I want to record audio and video with my raspberry pi b+ 2.
  I tried to accomplish this with one ffmpeg command but this is to slow. and i could not get it working correctly

  I have a raspberry pi camera module and a Cirrus audio card. On the raspberry i have compiled a new kernel with support for the audio card. I also compiled ffmpeg on the raspberr with alsa support

  ~$ ffmpeg
  
  ffmpeg version N-71470-g2db24cf Copyright (c) 2000-2015 the FFmpeg developers
  
  built with gcc 4.6 (Debian 4.6.3-14+rpi1)
  
  configuration: --arch=armel --target-os=linux --enable-gpl --extra-libs=-lasound --enable-nonfree
  
    libavutil      54. 22.101 / 54. 22.101
  
    libavcodec     56. 34.100 / 56. 34.100
  
    libavformat    56. 30.100 / 56. 30.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 14.100 /  5. 14.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

  Now i try to record an audio stream and a video stream ’at the same time’
  I do this my running a shell script

  raspivid -t 60000 -vs -w 1280 -h 720 -b 5000000 -fps 25 -o video.h264 &
  
  arecord -Dhw:sndrpiwsp -r 44100 -c 2 -d 60 -f S32_LE audio.aac

  i also tried with -r 22050 and -f S16_LE

  when running this it sometimes gives an (i think)

  overrun!!! (at least 1038.725 ms long)

  at the end of the script i have two files. a video and a audio file.

  now i want to merge those two together by using ffmpeg

  ffmpeg -i video.h264 -i audio.aac -c:v copy -c:a aac -strict experimental output.mp4

  this gives the output :

  ffmpeg version N-71470-g2db24cf Copyright (c) 2000-2015 the FFmpeg developers
  
  built with gcc 4.6 (Debian 4.6.3-14+rpi1)
  
  configuration: --arch=armel --target-os=linux --enable-gpl --extra-libs=-lasound --enable-nonfree
  
    libavutil      54. 22.101 / 54. 22.101
  
    libavcodec     56. 34.100 / 56. 34.100
  
    libavformat    56. 30.100 / 56. 30.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 14.100 /  5. 14.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, h264, from 'video_1min_3.h264':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0:0: Video: h264 (High), yuv420p, 1280x720, 25 fps, 25 tbr, 1200k tbn, 50 tbc
  
  Guessed Channel Layout for  Input Stream #1.0 : stereo
  
  Input #1, wav, from 'audio_1min_3.aac':
  
    Duration: 00:01:00.00, bitrate: 705 kb/s
  
      Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 2 channels, s16, 705 kb/s
  
  [mp4 @ 0x3230f20] Codec for stream 0 does not use global headers but container format requires global headers
  
  Output #0, mp4, to 'output_1min_3.mp4':
  
    Metadata:
  
      encoder         : Lavf56.30.100
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 25 fps, 25 tbr, 1200k tbn, 1200k tbc
  
      Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 22050 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc56.34.100 aac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #1:0 -> #0:1 (pcm_s16le (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  frame= 1822 fps=310 q=-1.0 Lsize=   33269kB time=00:01:12.84 bitrate=3741.7kbits/s
  
  video:32300kB audio:941kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.086073%

  so finally i have a file output.mp4 that is a movie with audio that is in sync at the beginning but drifts away to a difference of about 4 seconds. where the audio is ahead of the video.

  I hope you can help me trying to solve this issue so the audio does not drift away anymore.

  Thanks in advance

  ( i tried to be as clear as possible )

• Merge commit ’e63e3797a1ed9346f529848e6ba3d27fd2d2cc8d’

  17 décembre 2015, par Hendrik Leppkes

  Merge commit ’e63e3797a1ed9346f529848e6ba3d27fd2d2cc8d’
  * commit ’e63e3797a1ed9346f529848e6ba3d27fd2d2cc8d’ :
  
    avconv : pass the global codec side data to the muxer
  Merged-by : Hendrik Leppkes <h.leppkes@gmail.com>
  

  • [DH] ffmpeg.c