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• ffmpeg - add music to an audiobook, and loop the music [closed]

  23 novembre 2024, par Rhys

  I found these example, and they all work. But I cannot overlay 2 audios and loop the shortest audio until the longest audio is finished.

  


  Audio to match Video Length

  


  ffmpeg -i VIDEO1.mp4 -stream_loop -1 -i bgmusic.mp3 -shortest -c:v copy -c:a aac -map 0:v:0 -map 1:a:0 output.mp4


  


  Loop Audio

  


  ffmpeg -i audio.mp3 -filter_complex "aloop=loop=-1:size=10" output_loop.mp3


  


  Overlay 2 Audios

  


  ffmpeg -y -i bgmusic.mp3 -i audio.mp3 -filter_complex "[0:0]volume=1.0[a];[1:0]volume=1.0[b];[a][b]amix=inputs=2:duration=longest" -c:a libmp3lame output.mp3


  


  Here is my attempt.

  


  ffmpeg -y -i audio.mp3 -stream_loop -1 -i bgmusic.mp3 -shortest -filter_complex "[0:0]volume=1.0[a];[1:0]volume=1.0[b];[a][b]amix=inputs=2:duration=longest" -c:a libmp3lame output.mp3


  


  But this example is looping bgmusic.mp3 forever ... and audio.mp3 is stopping after the song finishes

  


  how can I get to audios to play togeather, but the shortest audio loops until the longest audio is finished ?

  


• FFMPEG use -strict -2

  21 août 2020, par GILO

  Hi I've been recently using the command below

  


  Ffmpeg -i song.mp3 -loop 1 -i image.jpg -filter_complex \
"[0:a]showfreqs=mode=line:ascale=log:fscale=log:s=1280x518[sf]; \
 [0:a]showwaves=s=1280x202:mode=p2p[sw]; \
 [sf][sw]vstack[fg]; \
 [1:v]scale=1280:-1,crop=iw:720[bg]; \
 [bg][fg]overlay=shortest=1:format=auto,format=yuv420p,drawtext=fontfile=/usr/share/fonts/TTF/Vera.ttf:fontcolor=white:x=10:y=10:text='\"Rated80s Prophets Prey\" by Comics On Film'[out]" \
-map "[out]" -map 0:a -c:v libx264 -preset fast -crf 18 -c:a libopus output.mp4 


  


  from this post Showfreqs and showwaves over background image ?.

  


  


  However I changed the output file to from output.mkv to output.mp4 as I would prefer to use mp4

  


  


  I get the below error

  


  [mp4 @ 0x7f962b816800] opus in MP4 support is experimental, add '-strict -2' if you want to use it.
Could not write header for output file #0 (incorrect codec parameters ?) : Experimental feature
Error initializing output stream 0:0 —
[libopus @ 0x7f962b819800] 1 frames left in the queue on closing

  


  The main information from that error is

  


  


  opus in MP4 support is experimental, add '-strict -2' if you want to use it.

  


  


  but where do I use -strict -2 within the command to make the command possible

  


• Code returns AttributeError : 'VoiceChannel' object has no attribute 'play' when running on Discloud

  18 septembre 2023, par Sc4rl3ttfir3

  So, my code works fine when I run it locally, but even after adapting it to run on Discloud, it returns an error I can't solve.

  


  Code :

  


  @bot.command(name='play', help='To play song')
async def play(ctx, url):
    voice_channel = ctx.author.voice.channel

    if voice_channel is None:
        return await ctx.send('You are not connected to a voice channel.')

    async with ctx.typing():
        filename = await YTDLSource.from_url(url, loop=bot.loop)
        
        if ctx.voice_client is not None:
            ctx.voice_client.stop()

        source = discord.FFmpegPCMAudio(
            executable="ffmpeg",
            source=filename
        )
        
        voice_channel.play(source)

    await ctx.send('**Now playing:** {}'.format(filename))


  


  When it runs on the Discloud server, it returns the following error/traceback message :

  


  Traceback (most recent call last):
File "/usr/local/lib/python3.11/site-packages/discord/ext/commands/core.py", line 235, in wrapped
ret = await coro(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user_686208406444572830/Sc4rl3ttb0t.py", line 357, in play 
voice_channel.play(source)
^^^^^^^^^^^^^^^^^^
AttributeError: 'VoiceChannel' object has no attribute 'play'


  


  Anybody with any idea of what is going wrong would be greatly appreciated for helping out