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• Discord bot stops playing music at a certain iteration

  3 mai 2023, par denisnumb

  I'm using the following code to play music in a discord voice channel :

  


  import discord
import asyncio
from yt_dlp import YoutubeDL

YDL_OPTIONS = {
    'format': 'bestaudio/best', 
}

FFMPEG_OPTIONS = {
    'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 
    'options': '-vn'
}

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

async def get_source_url(url: str) -> str:
    with YoutubeDL(YDL_OPTIONS) as ydl:
        return ydl.extract_info(url, download=False).get('url')

@bot.slash_command(name='play')
async def __play(ctx, url: str) -> None:
    source = await get_source_url(url)
    vc = await ctx.author.voice.channel.connect()
    vc.play(discord.FFmpegPCMAudio(source=source, **FFMPEG_OPTIONS))

    while vc.is_playing() or vc.is_paused():
        await asyncio.sleep(1)

    await vc.disconnect()

bot.run('TOKEN')


  


  The principle of operation is as follows :

  


  


  1. The /play command handler receives a url argument, in the form of a link to a live stream from YouTube : https://youtu.be/jfKfPfyJRdk (or any other video)

     


  


  2. The link is passed to the get_source_url function, which, using the yt-dlp library, returns a direct link to the sound from the video

     


  


  3. The direct link is passed via discord.FFmpegPCMAudio to the ffmpeg program, which then returns audio bytes for transmission to the discord voice channel via the vc.play method

     


  


  


  ---

  


  Problem :

  


  Bot is hosted on the virtual hosting server aeza, OS - Ubuntu Server 22.04. I installed the ffmpeg version 4.4.2 with the command sudo apt install ffmpeg.

  


  On the first day everything worked fine, but the next day the bot began to steadily stop playing music at the same moment in different videos (this moment is different for each video). Restarting the bot or server did not help.

  


  Only reinstalling the operating system helps, but also only for one day.

  


  Specific problem :

  


  I checked the execution of every single line of the discord.VoiceClient.play method, including all methods called internally. It turned out that the bot hangs every time on the same iteration of the cycle of receiving and sending bytes. Namely, on the first line of the discord.FFmpegPCMAudio.read method, that is does not receive data from ffmpeg and waits indefinitely.

  


  ---

  


  Source of the problem :

  


  The problem is not with a specific ffmpeg :

  


  

  • I also installed ffmpeg on another version 5.1.2 and the problem was repeated on it.

  


  


  The problem is not Ubuntu Server :

  


  

  • I changed OS Ubuntu Server to Debian 11 and it's the same there

  


  


  The problem is not in Linux :

  


  

  • When I put the same OS on my virtual machine, everything worked fine with any version of ffmpeg.

  


  


  ---

  


  So the problem is on the hosting side ? I asked those. support to change the server itself and the location of the location. Changed from Sweden to Germany - the same result.

  


  If the data does not come from ffmpeg, then you need to find out what is wrong in the program itself. When calling, I pass the -loglevel debug argument, which shows the most detailed report on the program's operation - all debugging information is displayed, but there are no errors on the "hung" iteration.

  


  What could be the problem ?

  


  ---

  


  UPD 03.05.2023 : I reinstalled OS Ubuntu Server again and the bot works now. But obviously not for long. Maybe I need to clear some cache ?

  


• C# Windows Forms Using FFMPEG to change video format got no response

  21 mai 2023, par TSLee

  I am trying to make an exe program to change a video format by using FFMPEG instead of doing it in the terminal. The formatted video will be saved in the download folder. I have tried my code below and got no output response. I wonder if I used process() and StartInfo correctly, as examples I found and the documentation just confused me. I have double-checked the ffmpeg.exe is in the bin folder and the StartInfo() is just for getting information, which is under Process(). This is why Process() can access the information and use Start() to start the process. Please help and correct my understanding.
Below is part of my code :

  


  private void convertButton_Click(object sender, EventArgs e)
    {
        String input = filepathTextBox.Text;
        String outputResolution = resolutionLabel.Text;
        String output;
        String outputFileType;
        int inputLength = input.Length;
        int l = 0;
        for (int i = (inputLength - 1); inputLength > -1; i--)
        {
            if (input[i] == '.')
            {
                l = i;
                break;
            }
        }
        output = input.Substring(0, l - 1);
        outputFileType = input.Substring(l + 1, inputLength - 1);
        Process process = new Process();
        process.StartInfo.UseShellExecute = true;
        process.StartInfo.FileName = "ffmpeg.exe";
        process.StartInfo.WorkingDirectory = @"C:\Users\User\Downloads\ffmpeg-2023-05-15-git-2953ebe7b6-full_build\bin";
        process.StartInfo.Arguments = "ffmpeg -i" + @"C:\Users\User\Downloads\file_example_MP4_640_3MG.mp4" + "-s 320x240 -r 25 -b:v 500000 -pix_fmt yuv420p -c:v libx264     -vprofile baseline -level  2.1 -x264opts  stitchable=1:level=3.0:keyint=15:ref=1:merange=16:mvrange=32 -acodec pcm_s16le -ar 16000 -ac 1" + @"C:\Users\User\Downloads\440.mp4";
        process.Start();
    }


  


  Output :
"myprogram.exe(CoreCLR : clrhost) : Loaded 'C :\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.15\System.Diagnostics.Process.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled."
The thread 0x79e0 has exited with code 0 (0x0).

  


• /bin/sh : ffmpeg : command not found while merge audio with with using ffmpeg aws lamda [duplicate]

  1er mai 2023, par bhavesh kaila

  I am trying to merge audio with video using the below command in AWS lambda using Python but the getting and below error.

  


  ffmpeg Command

  


  cmd = 'ffmpeg  -stream_loop -1 -i mayur.mp4 -i audio.mp3 -shortest -map 0:v:0 -map 1:a:0 -y out/output.mp4'
subprocess.call(cmd, shell=True) 


  


  Aws Lambda Error

  


  2023-05-01T16:08:18.591+05:30   INIT_START Runtime Version: python:3.10.v2 Runtime Version ARN: arn:aws:lambda:eu-north-1::runtime:7764dc7f3ff1fc45718f596be4cd03d7bca223f0586f3bfa5fe6584d6af81cd8

2023-05-01T16:08:19.631+05:30   START RequestId: 4557a174-e12c-4924-971a-ef8f852b106b Version: $LATEST

2023-05-01T16:08:22.286+05:30

Copy
/bin/sh: ffmpeg: command not found
/bin/sh: ffmpeg: command not found

2023-05-01T16:08:23.926+05:30   [ERROR] FileNotFoundError: [Errno 2] No such file or directory: '/tmp/output.mp4' Traceback (most recent call last):   File "/var/task/lambda_function.py", line 65, in lambda_handler     s3_upload_response = s3.put_object(Bucket=bucket, Body=open('/tmp/output.mp4', 'rb'), Key =filename)

2023-05-01T16:08:23.929+05:30   END RequestId: 4557a174-e12c-4924-971a-ef8f852b106b


  


  Full Code snippet

  


  import json
from gtts import gTTS
import openpyxl
import boto3
import base64
import openai
import os
import random
import ffmpeg
import subprocess

# os.system("cp -ra bin/ffmpeg /tmp/")
# os.system("chmod -R 775 /tmp")

#from botocore.vendored import requests
language = 'en'
def lambda_handler(event, context):
    input1 = event["queryStringParameters"]['question']
    outputText=""
    
    # Define variable to load the dataframe
    dataframe = openpyxl.load_workbook('QNA/Book1.xlsx')
    
      #accesskey and secretkey for the S3 bucket
    accesskey = os.getenv("access_key")
    secretkey = os.getenv("secret_key")
    
    # Define variable to read sheet
    ws = dataframe['Sheet1']
    
    for row in ws.iter_rows(0,dataframe.active.max_row):
        for cell in row:
          #print(cell.value)
          if input1 in str(cell.value):
            outputText=row[1].value
  
    
    
      #Save Audio File
    audio = gTTS(text=outputText, lang=language, slow=False)
    audio.save("/tmp/audio.mp3")
    
    cmd='ffmpeg -stream_loop -1 -i QNA/mayur.mp4 -i tmp/audio.mp3 -shortest -map 0:v:0 -map 1:a:0 -y tmp/output.mp4'
    subprocess.run(cmd, shell=True)


  


  Note : I Download the static library from Here and added it to the python folder and generate python.zip with other dependencies and upload it on the aws layer and the AWS layer is linked with the python function.

  


  Note : Above code is working fine with google codelab and is able to generate a merged video working fine.

  


  Any help would be appriciated