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• Discord bot leaving voice channel immediately after joining

  17 janvier 2018, par Forb

  I am building a bot for my discord server to play the audio YouTube videos as I haven’t found a reliable bot online.

  The bot connects to my voice channel after I type the !play url command but immediately leaves even if the URL is valid.

  My code is below :

  [Command("play", RunMode = RunMode.Async)]
  
  public async Task play(string url) {
  
      IVoiceChannel channel = (Context.User as IVoiceState).VoiceChannel;
  
      IAudioClient client = await channel.ConnectAsync();
  
  
  
      var output = CreateStream(url).StandardOutput.BaseStream;
  
      var stream = client.CreatePCMStream(AudioApplication.Music, 128 * 1024);
  
      output.CopyToAsync(stream);
  
      stream.FlushAsync().ConfigureAwait(false);
  
  }
  
  
  
  private Process CreateStream(string url) {
  
      Process currentsong = new Process();
  
  
  
      currentsong.StartInfo = new ProcessStartInfo {
  
          FileName = "cmd.exe",
  
          Arguments = $"/C youtube-dl -o - {url} | ffmpeg -i pipe:0 -ac 2 -f s16le -ar 48000 pipe:1",
  
          UseShellExecute = false,
  
          RedirectStandardOutput = true,
  
          CreateNoWindow = true
  
      };
  
  
  
      currentsong.Start();
  
      return currentsong;
  
  }

  I have tried using just ffmpeg with a file on my PC which was hard coded in, but I had the same result and the bot left the voice channel as soon as it connected.

  I did verify that both ffmpeg and youtube-dl were working by running the commands in a cmd window and they both ran fine.

• FFmpeg only reading one channel

  29 août 2017, par AbstractDissonance

  Trying to read a stereo wav file and ffmpeg is only reading one channel. ffprobe returns 2 channels.

  I have used -ac 2 and then added -channel_layout stereo but all return 1 channel(or basically filling half the buffer I created).

  Basically the output size of ffmpeg is about half the wav file size.

  What I would like is for it to return every channel in

  Channel1_sample1, channel2_sample1, ..., ChannelN_sample1, channel1_sample2, etc...

  But, in reality, I’d rather just have it work with stereo ;) I’m giving it plenty large enough buffer to read to, so that isn’t the problem either.

  Here is the output

  ffprobe.exe -hide_banner -v quiet -print_format flat -show_streams -i temp.wav
  
  streams.stream.0.index=0
  
  streams.stream.0.codec_name="pcm_s16le"
  
  streams.stream.0.codec_long_name="PCM signed 16-bit little-endian"
  
  streams.stream.0.profile="unknown"
  
  streams.stream.0.codec_type="audio"
  
  streams.stream.0.codec_time_base="1/44100"
  
  streams.stream.0.codec_tag_string="[1][0][0][0]"
  
  streams.stream.0.codec_tag="0x0001"
  
  streams.stream.0.sample_fmt="s16"
  
  streams.stream.0.sample_rate="44100"
  
  streams.stream.0.channels=2
  
  streams.stream.0.channel_layout="unknown"
  
  streams.stream.0.bits_per_sample=16
  
  streams.stream.0.id="N/A"
  
  streams.stream.0.r_frame_rate="0/0"
  
  streams.stream.0.avg_frame_rate="0/0"
  
  streams.stream.0.time_base="1/44100"
  
  streams.stream.0.start_pts="N/A"
  
  streams.stream.0.start_time="N/A"
  
  streams.stream.0.duration_ts=14200200
  
  streams.stream.0.duration="322.000000"
  
  streams.stream.0.bit_rate="1411200"
  
  streams.stream.0.max_bit_rate="N/A"
  
  streams.stream.0.bits_per_raw_sample="N/A"
  
  streams.stream.0.nb_frames="N/A"
  
  streams.stream.0.nb_read_frames="N/A"
  
  streams.stream.0.nb_read_packets="N/A"
  
  streams.stream.0.disposition.default=0
  
  streams.stream.0.disposition.dub=0
  
  streams.stream.0.disposition.original=0
  
  streams.stream.0.disposition.comment=0
  
  streams.stream.0.disposition.lyrics=0
  
  streams.stream.0.disposition.karaoke=0
  
  streams.stream.0.disposition.forced=0
  
  streams.stream.0.disposition.hearing_impaired=0
  
  streams.stream.0.disposition.visual_impaired=0
  
  streams.stream.0.disposition.clean_effects=0
  
  streams.stream.0.disposition.attached_pic=0
  
  streams.stream.0.disposition.timed_thumbnails=0
  
  ffmpeg.exe -i temp.wav -loglevel quiet -f s16le -ac 2 -channel_layout stereo -

  temp.wav is just a standard stereo wav file.

• Discord bot leaving voice channel immediatly after joining

  24 juillet 2017, par Forb

  I am building a bot for my discord server to play the audio YouTube videos as I haven’t found a reliable bot online.

  The bot connects to my voice channel after I type the !play url command but immediately leaves even if the URL is valid.

  My code is below :

  [Command("play", RunMode = RunMode.Async)]
  
  public async Task play(string url) {
  
      IVoiceChannel channel = (Context.User as IVoiceState).VoiceChannel;
  
      IAudioClient client = await channel.ConnectAsync();
  
  
  
      var output = CreateStream(url).StandardOutput.BaseStream;
  
      var stream = client.CreatePCMStream(AudioApplication.Music, 128 * 1024);
  
      output.CopyToAsync(stream);
  
      stream.FlushAsync().ConfigureAwait(false);
  
  }
  
  
  
  private Process CreateStream(string url) {
  
      Process currentsong = new Process();
  
  
  
      currentsong.StartInfo = new ProcessStartInfo {
  
          FileName = "cmd.exe",
  
          Arguments = $"/C youtube-dl -o - {url} | ffmpeg -i pipe:0 -ac 2 -f s16le -ar 48000 pipe:1",
  
          UseShellExecute = false,
  
          RedirectStandardOutput = true,
  
          CreateNoWindow = true
  
      };
  
  
  
      currentsong.Start();
  
      return currentsong;
  
  }

  I have tried using just ffmpeg with a file on my PC which was hard coded in, but I had the same result and the bot left the voice channel as soon as it connected.

  I did verify that both ffmpeg and youtube-dl were working by running the commands in a cmd window and they both ran fine.