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  • Why is my discord bot not able to find the file that is there when I open the folder manually ?

    22 juin 2021, par Toma

    I made a discord bot that should play music using ffmpeg.

    


    It's connecting and downloading the youtube webm file after which it should convert and rename it to song.mp3 but it doesn't manage to do so. I check the folder and the error message doesn't match what I see - the file is there and has been renamed.

    


      

    1. Am I using the replace command correctly to move the file ?

      2. 


    2. I'd note that I'm using windows10 and that the folders are all read only and that although I'm the admin I can't change that no matter what I do (I guess it's a win10 bug). Does that have anything to do with it ?

      3. 


    3. Is there another mistake in the code that'd prevent the file from being found by the bot ?

      4. 


    


    My code :

    


    import discord
from discord.ext import commands
import youtube_dl #for url music command
import os

client = commands.Bot(command_prefix = '><')

#connect to voice channel
@client.command(aliases = ['c'])
async def connect(ctx, vcName):
    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    voiceChannel = discord.utils.get(ctx.guild.channels, name=str(vcName))
    if voice == None: #if voice is not connected to any channel
        await voiceChannel.connect()
    else:
        if voice.channel == vcName: #if trying to connect to the same channel
            await ctx.send('already connected to this channel')
        else:
            await voice.move_to(vcName)

@client.command(aliases = ['d'])
async def delFile(ctx):
    song_there = os.path.exists(os.getcwd()+'/music/current/song.mp3') #true when song.mp3 exists in 'current' folder in 'music' folder
    if song_there:
        await ctx.send('song was detected')
        os.remove('song.mp3')
        if song_there:
            await ctx.send('song was not deleted')
    else:
        await ctx.send('File is not found. check the name again')

#play music from url

@client.command(aliases = ['p'])
async def playMusic(ctx, vcName, url : str): #play music file
    song_there = os.path.exists(os.path.join(os.getcwd(),'/music/current/song.mp3'))
    try:
        if song_there:
            print('previous song found')
            os.remove(os.path.join(os.getcwd(),'/music/current/song.mp3')) #removes the song in current to make room for a new song
            if song_there:
                print('song was not deleted')
            else:
                print('song deleted')
    except PermissionError:
        await ctx.send('A song is currently playing')
        return
    voiceChannel = discord.utils.get(ctx.guild.channels, name=str(vcName))
    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }]
    }


   for file in os.listdir('./'):
        if file.endswith('.mp3'):       #if song.mp3 already exists delete it to make room for a new download
            os.remove('song.mp3')
        else:                           #download the file from youtube
            with youtube_dl.YoutubeDL(ydl_opts) as ydl:
                ydl.download([url])
    for file in os.listdir('./'):       #after downloading rename the file and move it to current folder
        if not file == ('song.mp3') and file.endswith('.mp3'):
            os.rename(file, 'song.mp3')
            print(os.path.join(os.getcwd(), 'song.mp3'))
            print(os.path.join(os.getcwd(), '/music/current/song.mp3'))
            os.replace(os.path.join(os.getcwd(), 'song.mp3'), os.path.join(os.getcwd(), '/music/current/song.mp3'))   #move file to current

    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    if not voice is None:               #if voice is already created
        if not voice.is_connected():    #and is not connected
            await voiceChannel.connect()
        voice.play(discord.FFmpegPCMAudio('song.mp3'))
    else:
        await ctx.send('Bot made an oopsy. Cast mending and heal bot.')
client.run('token')


    


    Error :

    


    [youtube] wkJ7oDMqz0A: Downloading webpage
[download] The Minor Bee-wkJ7oDMqz0A.webm has already been downloaded
[download] 100% of 5.13MiB
[ffmpeg] Destination: The Minor Bee-wkJ7oDMqz0A.mp3
Deleting original file The Minor Bee-wkJ7oDMqz0A.webm (pass -k to keep)
[youtube] wkJ7oDMqz0A: Downloading webpage
[download] Destination: The Minor Bee-wkJ7oDMqz0A.webm
[download] 100% of 5.13MiB in 00:00                   
[ffmpeg] Destination: The Minor Bee-wkJ7oDMqz0A.mp3
Deleting original file The Minor Bee-wkJ7oDMqz0A.webm (pass -k to keep)
[youtube] wkJ7oDMqz0A: Downloading webpage
[download] Destination: The Minor Bee-wkJ7oDMqz0A.webm
[download] 100% of 5.13MiB in 00:00                  
[ffmpeg] Destination: The Minor Bee-wkJ7oDMqz0A.mp3
Deleting original file The Minor Bee-wkJ7oDMqz0A.webm (pass -k to keep)
C:.....song.mp3 -> **C:/music/current/song.mp3**
Ignoring exception in command playMusic:
Traceback (most recent call last):
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "C:...tut-bot.py", line 84, in playMusic
    os.replace(os.path.join(os.getcwd(), 'song.mp3'), os.path.join(os.getcwd(), '/music/current/song.mp3'))   #move file to current
FileNotFoundError: [WinError 3] The system cannot find the path specified: 'C:\....\\song.mp3' -> 'C:/music/current/song.mp3'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\bot.py", line 939, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\core.py", line 863, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\core.py", line 94, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: FileNotFoundError: [WinError 3] The system cannot find the path specified: 'C:\\...\\song.mp3' -> 'C:/music/current/song.mp3'


    


  • Why does my discord bot not able to find the file that is there when I open the folder manually ?

    22 juin 2021, par Toma

    I made a discord bot that should play music using ffmpeg.

    


    It's connecting and downloading the youtube webm file after which it should convert and rename it to song.mp3 but it doesn't manage to do so. I check the folder and the error message doesn't match what I see - the file is there and has been renamed.

    


      

    1. Am I using the replace command correctly to move the file ?

      2. 


    2. I'd note that I'm using windows10 and that the folders are all read only and that although I'm the admin I can't change that no matter what I do (I guess it's a win10 bug). Does that have anything to do with it ?

      3. 


    3. Is there another mistake in the code that'd prevent the file from being found by the bot ?

      4. 


    


    My code :

    


    import discord
from discord.ext import commands
import youtube_dl #for url music command
import os

client = commands.Bot(command_prefix = '><')

#connect to voice channel
@client.command(aliases = ['c'])
async def connect(ctx, vcName):
    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    voiceChannel = discord.utils.get(ctx.guild.channels, name=str(vcName))
    if voice == None: #if voice is not connected to any channel
        await voiceChannel.connect()
    else:
        if voice.channel == vcName: #if trying to connect to the same channel
            await ctx.send('already connected to this channel')
        else:
            await voice.move_to(vcName)

@client.command(aliases = ['d'])
async def delFile(ctx):
    song_there = os.path.exists(os.getcwd()+'/music/current/song.mp3') #true when song.mp3 exists in 'current' folder in 'music' folder
    if song_there:
        await ctx.send('song was detected')
        os.remove('song.mp3')
        if song_there:
            await ctx.send('song was not deleted')
    else:
        await ctx.send('File is not found. check the name again')

#play music from url

@client.command(aliases = ['p'])
async def playMusic(ctx, vcName, url : str): #play music file
    song_there = os.path.exists(os.path.join(os.getcwd(),'/music/current/song.mp3'))
    try:
        if song_there:
            print('previous song found')
            os.remove(os.path.join(os.getcwd(),'/music/current/song.mp3')) #removes the song in current to make room for a new song
            if song_there:
                print('song was not deleted')
            else:
                print('song deleted')
    except PermissionError:
        await ctx.send('A song is currently playing')
        return
    voiceChannel = discord.utils.get(ctx.guild.channels, name=str(vcName))
    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }]
    }


   for file in os.listdir('./'):
        if file.endswith('.mp3'):       #if song.mp3 already exists delete it to make room for a new download
            os.remove('song.mp3')
        else:                           #download the file from youtube
            with youtube_dl.YoutubeDL(ydl_opts) as ydl:
                ydl.download([url])
    for file in os.listdir('./'):       #after downloading rename the file and move it to current folder
        if not file == ('song.mp3') and file.endswith('.mp3'):
            os.rename(file, 'song.mp3')
            print(os.path.join(os.getcwd(), 'song.mp3'))
            print(os.path.join(os.getcwd(), '/music/current/song.mp3'))
            os.replace(os.path.join(os.getcwd(), 'song.mp3'), os.path.join(os.getcwd(), '/music/current/song.mp3'))   #move file to current

    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    if not voice is None:               #if voice is already created
        if not voice.is_connected():    #and is not connected
            await voiceChannel.connect()
        voice.play(discord.FFmpegPCMAudio('song.mp3'))
    else:
        await ctx.send('Bot made an oopsy. Cast mending and heal bot.')
client.run('token')


    


    Error :

    


    [youtube] wkJ7oDMqz0A: Downloading webpage
[download] The Minor Bee-wkJ7oDMqz0A.webm has already been downloaded
[download] 100% of 5.13MiB
[ffmpeg] Destination: The Minor Bee-wkJ7oDMqz0A.mp3
Deleting original file The Minor Bee-wkJ7oDMqz0A.webm (pass -k to keep)
[youtube] wkJ7oDMqz0A: Downloading webpage
[download] Destination: The Minor Bee-wkJ7oDMqz0A.webm
[download] 100% of 5.13MiB in 00:00                   
[ffmpeg] Destination: The Minor Bee-wkJ7oDMqz0A.mp3
Deleting original file The Minor Bee-wkJ7oDMqz0A.webm (pass -k to keep)
[youtube] wkJ7oDMqz0A: Downloading webpage
[download] Destination: The Minor Bee-wkJ7oDMqz0A.webm
[download] 100% of 5.13MiB in 00:00                  
[ffmpeg] Destination: The Minor Bee-wkJ7oDMqz0A.mp3
Deleting original file The Minor Bee-wkJ7oDMqz0A.webm (pass -k to keep)
C:.....song.mp3 -> **C:/music/current/song.mp3**
Ignoring exception in command playMusic:
Traceback (most recent call last):
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "C:...tut-bot.py", line 84, in playMusic
    os.replace(os.path.join(os.getcwd(), 'song.mp3'), os.path.join(os.getcwd(), '/music/current/song.mp3'))   #move file to current
FileNotFoundError: [WinError 3] The system cannot find the path specified: 'C:\....\\song.mp3' -> 'C:/music/current/song.mp3'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\bot.py", line 939, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\core.py", line 863, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Program Files\Python38\lib\site-packages\discord\ext\commands\core.py", line 94, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: FileNotFoundError: [WinError 3] The system cannot find the path specified: 'C:\\...\\song.mp3' -> 'C:/music/current/song.mp3'


    


  • avformat/dxa : Check fps to be within the supported range more precissely

    24 avril 2021, par Michael Niedermayer
    avformat/dxa : Check fps to be within the supported range more precissely

    Fixes : negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int') ; cast to an unsigned type to negate this value to itself
    
Fixes : assertion failure
    
Fixes : 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_DXA_fuzzer-6744985740378112
    

    Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavformat/dxa.c

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