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• ffprobe filter videos by duration, command prints but does not return duration

  22 juillet 2021, par jcu

  I am attempting to use ffprobe to filter through videos by their duration. I was using :

  


  vid_length = subprocess.call(f"ffprobe -i {local_vids_2[count]} -show_entries format=duration -v quiet -of csv='p=0'", shell = True)
print("VIDEO LENGTH IS:", vid_length, "FOR: ", count)


  


  While I DO get the duration printed to my command prompt by the shell command, I noticed I DON'T get it returned as a variable like I need. Instead it's returning 0, so I get something like : VIDEO URL IS: 100_scaled.mp4 FOR:  0 11.883000 VIDEO LENGTH IS: 0 FOR:  0 and VIDEO URL IS: 101_scaled.mp4 FOR:  1 56.171000 VIDEO LENGTH IS: 0 FOR:  1 etc.

  


  I have also tried vid_length = subprocess.call(f"ffprobe -i {local_vids_2[count]} -show_entries format=duration -v quiet -of csv=%s % ('p=0')", shell = True) based on what I read in this post but that hasn't worked either.

  


  Is there a way I can get this command to return anything ? Or do I need something else that will return the video length for coding purposes ? Thank You.

  


• Music bot returning errors at core.py and bot.py

  13 septembre 2021, par Loganox

  The code for the music bot I'm trying to write in python keeps returning an error with the following code :

  


  @bot.command(name='play_song', help='To play song')
async def play(ctx,url):
    
    #if not ctx.message.author.name=="Rohan Krishna" :
    #     await ctx.send('NOT AUTHORISED!')
    #     return
    if 1==1:#try :
        server = ctx.message.guild
        voice_channel = server.voice_client
        print("try 1 was a success")
        
        async with ctx.typing():
            filename = await YTDLSource.from_url(url, loop=bot.loop)
            #voice_channel.play(discord.FFmpegPCMAudio(executable="ffmpeg.exe", source=filename)) #ISSUE HERE
            print("try 2 was a success")
            voice = get(ctx.bot.voice_clients, guild=ctx.guild)
    
            #voice.play(discord.FFmpegPCMAudio('test.mp3'), after=your_check)
            #voice.source = discord.PCMVolumeTransformer(voice.source)
            #voice.source.volume = 0.5
        await ctx.send('**Now playing:** {}'.format(filename))
    if 1==0:#except:
        await ctx.send("The bot is not connected to a voice channel.")
        print("try 3 was unfortunately a success")


  


  It normally has a try/except function but I replaced it with if true and false statements to force it to run instead of breaking to determine the exact line of it breaking. The issue supposedly lies in

  


  voice_channel.play(discord.FFmpegPCMAudio(executable="ffmpeg.exe", source=filename)) #ISSUE HERE


  


  The error I get returned is :

  


  Traceback (most recent call last):
  File "C:\Users\heyin\anaconda3\lib\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "app2.py", line 75, in play
    voice.play(discord.FFmpegPCMAudio('test.mp3'), after=your_check)
  File "C:\Users\heyin\anaconda3\lib\site-packages\discord\player.py", line 225, in __init__
    super().__init__(source, executable=executable, args=args, **subprocess_kwargs)
  File "C:\Users\heyin\anaconda3\lib\site-packages\discord\player.py", line 138, in __init__
    self._process = self._spawn_process(args, **kwargs)
  File "C:\Users\heyin\anaconda3\lib\site-packages\discord\player.py", line 147, in _spawn_process
    raise ClientException(executable + ' was not found.') from None
discord.errors.ClientException: ffmpeg was not found.

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

Traceback (most recent call last):
  File "C:\Users\heyin\anaconda3\lib\site-packages\discord\ext\commands\bot.py", line 939, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Users\heyin\anaconda3\lib\site-packages\discord\ext\commands\core.py", line 863, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Users\heyin\anaconda3\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: ClientException: ffmpeg was not found.


  


  I added the print statements to determine which lines were working so those can obviously be ignored. It seems to be working fine except for this, other commands in the bot are working appropriately.

  


• lavfi/dnn_backend_common : Return specific error codes

  2 mars 2022, par Shubhanshu Saxena

  lavfi/dnn_backend_common : Return specific error codes
  Switch to returning specific error codes or DNN_GENERIC_ERROR
  
  when an error is encountered in the common DNN backend functions.
  Signed-off-by : Shubhanshu Saxena <shubhanshu.e01@gmail.com>
  

  • [DH] libavfilter/dnn/dnn_backend_common.c
  • [DH] libavfilter/dnn/dnn_backend_common.h