Convert the input audio to one of the specified formats. The framework will negotiate the most appropriate format to minimize conversions.

The filter accepts the following named parameters:

sample_fmts

A comma-separated list of requested sample formats.

sample_rates

A comma-separated list of requested sample rates.

channel_layouts

A comma-separated list of requested channel layouts.

If a parameter is omitted, all values are allowed.

For example to force the output to either unsigned 8-bit or signed 16-bit stereo:

aformat=sample_fmts\=u8\,s16:channel_layouts\=stereo