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• Discord Voice Bot cannot play the audio file

  7 avril 2023, par Jakub Nawrocki

  I tried to write a bot that will join the voice channel and play a audio at 20:00.

  


  Currently the bot joins the channel, but immediately after that it disconnects without making a single sound with this message :

  


  2023-04-07 17:58:01 INFO     discord.player ffmpeg process 18258 has not terminated. Waiting to terminate... 2023-04-07 17:58:01 INFO     discord.player ffmpeg process 18258 should have terminated with a return code of -9. 2023-04-07 17:58:01 INFO     discord.voice_client The voice handshake is being terminated for Channel ID 1093533451778523241 (Guild ID 1093533451778523237) 2023-04-07 17:58:01 INFO     discord.voice_client Disconnecting from voice normally, close code 1000. Audio file loaded:  Audio could not be played:

  


  Code :

  


  import discord
import asyncio
import datetime

TOKEN = 'TOKEN HERE' 
CHANNEL_ID = CHANNEL ID HERE

client = discord.Client(intents=discord.Intents.all())

async def play_sound(voice_client):
    try:
        source = discord.FFmpegPCMAudio('audio.mp3')
        print(f"Audio file loaded: {source}")
        voice_client.play(source)
        while voice_client.is_playing():
            await asyncio.sleep(1)
    except Exception as e:
        print(f"Audio could not be played: {e}")

@client.event
async def on_ready():
    print('Bot is ready')
    now = datetime.datetime.now()
    target_time = datetime.time(hour=20, minute=00)
    if now.time() >= target_time:
        print(f"Current time: {now.time()}. Bot did not join channel.")
        return
    else:
        print(f"Current time: {now.time()}. Bot has joined at {target_time}.")
        await asyncio.sleep((datetime.datetime.combine(datetime.date.today(), target_time) - now).total_seconds())
        channel = client.get_channel(CHANNEL_ID)
        if channel is not None:
            try:
                voice_client = await channel.connect()
                print(f'{client.user} joined voice chat.')
                await asyncio.sleep(1)
                await play_sound(voice_client)
                await voice_client.disconnect()
                print(f'{client.user} left voice chat.')
            except Exception as e:

                print(f"Error during joining channel : {e}")
        else:
            print(f"Did not find a channel of ID {CHANNEL_ID}.")

client.run(TOKEN)


  


  Any ideas ?

  


  ffmpeg has been installed properly.

  


• ffmpeg's segment_atclocktime cuts at inaccurate times for audio

  3 mai 2023, par Ross Richardson

  I am using ffmpeg's segment format to save files of an AAC stream to disk in hourly segments.
The segmenting works well, but the files are segmented/cut at different times in the clock each hour using segment_atclocktime

  


  I would like each to be exactly on the hour, e.g. 12:00:00, 13:00:00 etc. Or at least, beginning after the hour and not before, e.g. 12:00:00, 13:00:01, 14:00:00 etc.

  


  I am using ffmpeg-python to process the AAC stream and send to two outputs : stdout and these segments.
Here's the code :

  


  out1 = ffmpeg.input(stream, loglevel="panic").output("pipe:",
                                                     format="s16le", 
                                                     acodec="pcm_s16le", 
                                                     ac="1", 
                                                     ar="16000")

out2 = ffmpeg.input(stream, loglevel="info").output("rec/%Y-%m-%d-%H%M%S.aac",
                                                     acodec="copy",
                                                     format="segment",
                                                     segment_time="3600",
                                                     segment_atclocktime="1",
                                                     reset_timestamps="1",
                                                     strftime="1")
            
ffmpeg.merge_outputs(out1, out2)
      .run_async(pipe_stdout=True, overwrite_output=True)


  


  Most files are produced at the desired time : 05:00:00, 06:00:00, 07:00:00, but one or two each day start at 08:59:59 (where 09:00:00 would be desired), or even 16:00:24.

  


  I understand the segment needs to begin on a audio sample so it can't be perfect to the hour, but wondering how I can make it more consistent. Ideally, each hour's recording would begin at 00:00 or later, and not begin before the hour.

  


  I have tried using min_seg_duration 3600, reset_timestamps 1
I am not sure how exactly to use segment_clocktime_wrap_duration for audio, or whether segment_time_delta applies to audio.

  


  I'd appreciate any advice or understanding of how segment_atclocktime works with audio, as much on the internet seems video-focused.

  


• ffprobe reading wrong frame rate, any workarounds besides MediaInfo ?

  20 mai 2023, par Minty

  I want to check the frame rate of many videos. I decided to employ ffprobe :

  


  ffprobe -v error -select_streams v -of default=noprint_wrappers=1:nokey=1 -show_entries stream=r_frame_rate faulty.mkv =

  


  500/21


  


  That can't be right, what kind of fps is 500/21 ?

  


  ffprobe faulty.mkv (version 4.3.5-0+deb11u1+rpt3)

  


  Stream #0:0: Video: (...), 23.81 fps, 23.81 tbr, 1k tbn, 23.98 tbc (default)


  


  At least ffprobe 4 read the correct codec timescale i.e. 23.98 tbc (default), but in later versions tbc has been deprecated :

  


  Stream #0:0: Video: (...), 23.81 fps, 23.81 tbr, 1k tbn (default)


  


  However, MediaInfo gets it right :

  


  mediainfo faulty.mkv =

  


  (...)
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
(...)


  


  I tried using -count_packets to then divide nb_read_packets of the stream by the duration of the file, I'm getting 1 second per hour error. This is much better compared to 23,8095, but packets are not frames, and only the prohibitively, unusably slow -count_frames gets me the exact value.

  


  The rest of my workflow uses ffprobe, so I'm reluctant to switch to MediaInfo completely. I get that the file is, well, faulty, but if mediainfo can do it, is there a way to make sure the correct frame rate is read with ffprobe without decoding the entire file as -count_frames seems to do ?