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• How to prevent ffmpeg lib from printing in a command line when playing audio with a discord bot ?

  26 janvier 2021, par ICookieI

  I have a question about ffmpeg. I wrote a discord bot with discord.py lib, which plays audio when somebody joins a channel. I wanted the program to run on my computer in the background, so no console log will appear. Therefore I start the python script using a .bat and a .vbs file, so the process runs in the background. This works fine so far. The problem is that the ffmpeg lib (I assume it's the ffmpeg lib...) prints out a line ("[mp3 @ 0000020168869040] Estimating duration from bitrate, this may be inaccurate") in the command prompt when it plays audio, so everytime somebody joins a channel a command prompt appear on my desktop for 1 sec only to show this line, afterwards it closes, but it's really annoying that it shows up everytime. I was wondering if there is a way to prevent the ffmpeg lib to print out this line, but i couldnt find out how so far.
Can someone help me with that ?
Thanks Cookie

  


  my Code :

  


  def getAudioSource(source):

    audio_source = discord.FFmpegPCMAudio(executable="E:/PythonPrograms/DiscordBotHallo/Dateien/ffmpeg-win64-v4.2.2.exe", source=source)
    return audio_source


def getRandomGreeting():

    list = os.listdir("E:/PythonPrograms/DiscordBotHallo/Begrüßungen")
    Greeting = list[random.randrange(len(list))]
    Greeting = "Begrüßungen/" + Greeting
    return Greeting


@client.event
async def on_voice_state_update(member, before, after):

    if before.channel == None and member.id != 801800464756768768:
        greetingPath = getRandomGreeting()
        audio_source = getAudioSource(greetingPath)
        vc = await after.channel.connect()
        vc.play(audio_source)
        while vc.is_playing():
            await asyncio.sleep(1)
        vc.stop()
        await vc.disconnect()


  


• KeyError : 1 on Python when the code points to a value that exists [closed]

  10 décembre 2020, par oo92

  I am using the following code to traverse a list JSON output. There are about 100 streamers I want to take screens from but the code fails after the first one where I call the ffmpeg. I put a code after the ffmpeg to see if Python is running it at all and it does :

  


  Traceback (most recent call last):&#xA;  File "/home/onur/Desktop/pythonProject/main.py", line 12, in <module>&#xA;    username = streams_now[i][&#x27;channel&#x27;][&#x27;display_name&#x27;]&#xA;KeyError: 1&#xA;auronplay it is &#xA;</module>

  


  This is my code :

  


  import streamlink, os
from twitch import TwitchClient

client = TwitchClient(client_id='frl3dqgn21bbpp6tajjvg5pdevczac')

streams_now = client.streams.get_live_streams(limit=100)

print(streams_now[2]['channel']['display_name'])

for i in range(0, 99):
  username = streams_now[i]['channel']['display_name']
  streams_now = streamlink.streams('http://twitch.tv/' + username)
  stream = streams_now["best"].url
  dir_path = os.getcwd() + '/' + username
  os.mkdir(dir_path)
  os.system('ffmpeg -i ' + stream + f' -ss 20 -vframes 10 -r 0.2 -f image2 {dir_path}/' + username + '_output_%09d.jpg')
  print(username + ' it is ')


  


  The line that throws the error is username = streams_now[i]['channel']['display_name']. However, this line cannot throw an error because I am testing it before the for loop :

  


  print(streams_now[2]['channel']['display_name'])

  


  and I get this : shroud

  


• Output a new mp3 file from a lengthy mp3 mix which previews the audio at 5 different points of the mix

  17 novembre 2020, par Paul Hinett

  I basically have a large collection of audio mix files in mp3 format, say approx 2 hours worth of music per mp3.

  


  I am trying to work out the best way using the command line to output a preview MP3 file, this mp3 should have 5-10 second previews of the full mix at 6 or so points during the mix.

  


  Example
00:00:10 - 00:00:20
00:30:00 - 00:30:10
00:50:00 - 00:50:10
...

  


  So with the small mp3 file, you can kind of get an idea of the whole mix in a very short preview.

  


  I have seen ffmpeg etc that can preview say 5 seconds up to 15 seconds of an audio, but not sure if this is capable of doing multiple points of the audio.

  


  Any ideas or help is appreciated.