Allow custom ffmpeg rtmp output

[ghost]

I want youtube-dl to push a youtube livestream via ffmpeg with rtmp module to custom rtmp url.

D:\Programs\ffmpeg\bin>youtube-dl.exe --verbose -f best "https://www.youtube.com/watch?v=*VIDEO_NUMBER*" --no-part --encoding -c copy -f flv "rtmp://MY_SERVICE/MY_KEY_HERE"

I get an error "LookupError: unknown encoding: -c"

Is there a way to work it arond and force custom ffmpeg settings inside youtube-dl?

[dstftw]

That is not possible but you can extract stream URL with youtube-dl -g ... and then call ffmpeg yourself.

[ghost]

Ok, I managed to grab video only so far by:

ffmpeg -i https://manifest.googlevideo.com/LONG_GOOGLE_URL/playlist/index.m3u8 -c copy -bsf:a aac_adtstoasc -f flv rtmp://MY_SERVICE/MY_KEY_HERE

But there are two flaws - there's no audio, and it plays stream since the beginning of vsh 4 hours.
So, please help to enable audio and grab it from realtime, not past, please.

Disabling VSH allows to capture realtime, and recording to localhost saves sound, but streaming with rtmp just breaks sound.

[ghost]

Found a solution:

ffmpeg -i https://manifest.googlevideo.com/LONG_GOOGLE_URL/playlist/index.m3u8 -c copy -acodec aac -strict -2 -bsf:a aac_adtstoasc -f flv rtmp://MY_SERVICE/MY_KEY_HERE

Should manually encode to aac, but that seems to fix the issue. Thanks for help.

[dstftw]

-acodec copy should be enough.

[ghost]

Ok, I'll have to polish it later. Thank you for sending me to "-g". :-)

[ghost]

Tested it. -acodec copy doesn't work. But that doesn't matter either.