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• Making my Discord Bot automatically play music from WAV on loop

  5 décembre 2022, par Mativ9

  So I was trying to make a Discord Bot in Python, which would atomatically join a voice channel and play my own music from a list in a loop. So far it's joining the channel, shuffling the list so the music is on random, but when I try to write a code so after one song it will play the next one it crushes and doesn't play anything (tho it's joining the channel)

  


  import discord
import random
from discord.ext import commands
from discord import FFmpegPCMAudio

#playlist as a list
queue = [FFmpegPCMAudio('Iceland1.wav'), FFmpegPCMAudio('Iceland2.wav'), FFmpegPCMAudio('Iceland3.wav'), FFmpegPCMAudio('Iceland4.wav'),
         FFmpegPCMAudio('Iceland5.wav'), FFmpegPCMAudio('Iceland6.wav'), FFmpegPCMAudio('Iceland7.wav'), FFmpegPCMAudio('Iceland8.wav'),
         FFmpegPCMAudio('Iceland9.wav'), FFmpegPCMAudio('Iceland10.wav'), FFmpegPCMAudio('Norway1.wav'), FFmpegPCMAudio('Norway2.wav'),
         FFmpegPCMAudio('Norway3.wav'), FFmpegPCMAudio('Norway4.wav'), FFmpegPCMAudio('Norway5.wav'), FFmpegPCMAudio('Norway6.wav'),
         FFmpegPCMAudio('Norway7.wav'), FFmpegPCMAudio('Norway8.wav'), FFmpegPCMAudio('Norway9.wav'), FFmpegPCMAudio('Norway10.wav'),
         FFmpegPCMAudio('Norway11.wav'), FFmpegPCMAudio('Presents1.wav'), FFmpegPCMAudio('Presents2.wav'), FFmpegPCMAudio('Presents3.wav'),
         FFmpegPCMAudio('Presents4.wav'), FFmpegPCMAudio('Presents5.wav'), FFmpegPCMAudio('Presents6.wav'), FFmpegPCMAudio('Presents7.wav'),
         FFmpegPCMAudio('Presents8.wav'), FFmpegPCMAudio('Presents9.wav'), FFmpegPCMAudio('Presents10.wav'), FFmpegPCMAudio('Autumn1.wav'),
         FFmpegPCMAudio('Autumn2.wav'), FFmpegPCMAudio('Autumn3.wav'), FFmpegPCMAudio('Autumn4.wav'), FFmpegPCMAudio('Autumn5.wav'),
         FFmpegPCMAudio('Autumn6.wav'), FFmpegPCMAudio('Autumn7.wav'), FFmpegPCMAudio('Autumn8.wav'), FFmpegPCMAudio('Covers1.wav'),
         FFmpegPCMAudio('Covers2.wav'), FFmpegPCMAudio('Covers3.wav'), FFmpegPCMAudio('Covers4.wav'), FFmpegPCMAudio('Covers5.wav'),
         FFmpegPCMAudio('Covers6.wav'), FFmpegPCMAudio('Covers7.wav'), FFmpegPCMAudio('Covers8.wav'), FFmpegPCMAudio('Covers9.wav'),
         FFmpegPCMAudio('Covers10.wav'), FFmpegPCMAudio('Covers11.wav'), FFmpegPCMAudio('Covers12.wav')]

intents = discord.Intents.default()
intents.message_content = True
client = commands.Bot(command_prefix='>', intents=intents)

@client.event
async def on_ready():
    global voice
    print("The Matt Bot is ready")
    print("--------------------------")
    await client.change_presence(activity=discord.Game('Matt Krupa')) #makes my bot play Matt Krupa
    channel = client.get_channel(thechannelid) #geting channel ID
    voice = await channel.connect() #connecting to channel
    random.shuffle(queue) #randomazing the playlist
    def after_song(): #moving the first song to the end so its on loop, and playling the next one
        queue.append(queue[0])
        del queue[0]
        player = await voice.play(queue[0], after=await after_song())
    player = await voice.play(queue[0], after=await after_song()) #plays song from the playlist, after the song doing the after_song() function

client.run(mytokenidontwanttoshowitsry)


  


  I wanted it to play all the songs on the infinite loop, i can't find how to correctly detect the end of a song...

  


• C++ h264 ffmpeg/libav encode/decode(lossless) issues

  1er février 2017, par MrSmith

  Insights to encode/decode video with ffmpeg h264 (lossless)

  So I got something working on the encoding part, encode an avi in 264 however VLC wont play it, however Totem will.
  Decoding the same file proves troublesome. (I want the exact same data/frame going in as going out), I get these ;

  saving frame   5
  
  Video decoding
  
  [h264 @ 0x1d19880] decode_slice_header error
  
  frame :6
  
  saving frame   6
  
  Video decoding
  
  [h264 @ 0x1d19880] error while decoding MB 15 7, bytestream -27
  
  [h264 @ 0x1d19880] concealing 194 DC, 194 AC, 194 MV errors in I frame
  
  frame :7
  
  saving frame   7
  
  Video decoding
  
  [h264 @ 0x1d19880] decode_slice_header error

  and ultimatly this

  [H264 Decoder @ 0x7f1320766040] frame :11
  
  Broken frame packetizing
  
  [h264 @ 0x1d19880] SPS changed in the middle of the frame
  
  [h264 @ 0x1d19880] decode_slice_header error
  
  [h264 @ 0x1d19880] no frame!
  
  Error while decoding frame 11

  GAME OVER.

  Now I suspect that I have to go back to 1. the encoding part, there is problary a good reason VLC wont play it !

  I encode like this.

  void encode(char *Y,char *U,char *V){
  
  av_init_packet(&pkt);
  
  pkt.data = NULL;    // packet data will be allocated by the encoder
  
  pkt.size = 0;
  
  fflush(stdout);
  
  
  
  frame->data[0] = (uint8_t*)Y;
  
  frame->data[1] = (uint8_t*)U;
  
  frame->data[2] = (uint8_t*)V;
  
  frame->pts = ++i;
  
  
  
  ret = avcodec_encode_video2(c, &pkt, frame, &got_output);
  
  if (ret < 0) {
  
      fprintf(stderr, "Error encoding frame\n");
  
      exit (EXIT_FAILURE);
  
  }
  
  if (got_output) {
  
      printf("Write frame %3d (size=%5d)\n", i, pkt.size);
  
      fwrite(pkt.data, 1, pkt.size, f);
  
      av_free_packet(&pkt);
  
  }
  
  }

  And the codec is setup like this :

  AVCodecID dasd = AV_CODEC_ID_H264;
  
  codec = avcodec_find_encoder(dasd);
  
  c = avcodec_alloc_context3(codec);
  
  c->bit_rate = 400000;
  
  c->width = 320;
  
  c->height = 240;
  
  c->time_base= (AVRational){1,25};
  
  c->gop_size = 10; 
  
  c->max_b_frames=1;
  
  c->pix_fmt = AV_PIX_FMT_YUV420P;
  
  av_opt_set(c->priv_data, "preset", "slow", 0);
  
  avcodec_open2(c, codec, NULL);

  Since I am going for lossless i am not dealing with delayed frames(is this a correct assumption ?)
  I may not actually be encoding lossless, it seems like I may have to go with something like

  AVDictionary *param;
  
  av_dict_set(&param, "qp", "0", 0);

  And then open...

  So I guess me questions is these :

  • What are the correct codec params for lossless encoding (and advice if h264 is a terrible idea in this regard).
  • Do I need to handle delayed frames when going for lossless ?
  • Why is VLC mad at me ?

  Thanks.

• ffmpeg streaming to rtmp at 30fps

  19 janvier 2018, par user6326558

  I am trying to stream my desktop to facebook rtmp server using screen-capture-recorder :

   -re  -rtbufsize 256M -f dshow -i audio="Mikrofon (Realtek Audio)" 
  
  -rtbufsize 256M -f dshow -i audio="virtual-audio-capturer"  
  
  -rtbufsize 1024M -f dshow -i video=screen-capture-recorder -r 30  
  
  -filter:v scale=1280:720 -c:v  h264_nvenc -pix_fmt yuv420p -preset fast 
  
  -b:v 8M -maxrate:v 10M  -c:a aac -b:a 128k -ar 44100 
  
  -f flv rtmp://live-api.facebook.com:80/rtmp/..............

  I am using h264_nvenc codec for gpu acceleration, but I can stream at only 12-18 fps. However, when I stream into a file :

   -re  -rtbufsize 256M -f dshow -i audio="Mikrofon (Realtek Audio)" 
  
  -rtbufsize 256M -f dshow -i audio="virtual-audio-capturer"  
  
  -rtbufsize 1024M -f dshow -i video=screen-capture-recorder -r 30  
  
  -filter:v scale=1280:720 -c:v  h264_nvenc -pix_fmt yuv420p -preset fast 
  
  -b:v 8M -maxrate:v 10M  -c:a aac -b:a 128k -ar 44100 
  
  D:\test.mp4 -y

  I get 30 fps without problem, even when playing game (eg. Call of duty 6, pretty HW draining). Is it also possible to stream to rtmp at 30 fps with my command configuration ? Thank you

  If needed, my ffmpeg build config is :

  ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers

  built with gcc 7.1.0 (GCC)
  configuration : —disable-static —enable-shared —enable-gpl —enable-version3 —enable-cuda —enable-cuvid —enable-d3d11va —enable-dxva2 —enable-libmfx —enable-nvenc —enable-avisynth —enable-bzlib —enable-fontconfig —enable-frei0r —enable-gnutls —enable-iconv —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libfreetype —enable-libgme —enable-libgsm —enable-libilbc —enable-libmodplug —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenh264 —enable-libopenjpeg —enable-libopus —enable-librtmp —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxavs —enable-libxvid —enable-libzimg —enable-lzma —enable-zlib