[FFmpeg-devel] [PATCH] Set native order for wav channel layouts up until 8 channels.

[Marton Balint]

On Fri, 23 Feb 2024, Romain Beauxis wrote:

> The new default channel layout for the various RIFF/WAV decoders is not
> backward compatible.
>
> Historically, most decoders will expect the channel layouts to follow
> the native layout up-to a reasonable number of channels.
>
> Additionally, non-native layouts are causing troubles with filters
> chaining.
>
> This PR changes the default channel layout reported by RIFF/WAV decoders
> to default to the native layout when the number of channels is up-to 8.
>
> The logic for these changes is the same as the logic for the vorbis/opus
> decoders.

For Vorbis the channel layout is in the actual Vorbis specification. So 
you should follow the specification, simple guessing in the demuxer likely 
won't be acceptable.

Regards,
Marton