32 Audio channels

Questions involving a Windows version of FFmpeg.
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mbr
Posts: 1
Joined: Mon Mar 18, 2019 11:00 am

32 Audio channels

Post by mbr » Mon Mar 18, 2019 12:00 pm

Hi,

Does anyone know if ffmpeg supports 32 channels of audio in the output?

I am currently trying to upstream 32 audio channels in smooth streaming format into Azure media services (same behaviour when writing to a file).
This is not working because i am getting an error:

av_interleaved_write_frame(): Unkown error
Error writing trailer of : Error number -10054 occured.

When i try to stream 27 channels of audio there is no problem.
For testing purposes, I am using a transport stream with only one audio channel, which is mapped to multiple audio channels in the output.

pandy
Posts: 204
Joined: Mon Feb 24, 2014 1:46 pm

Re: 32 Audio channels

Post by pandy » Mon Mar 25, 2019 10:16 am

IMHO 32 channels limited should be removed since 2014 - check ffmpeg source - perhaps for constant FF_CH_MAX

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