[pulseaudio-discuss] {PATCH][RFC] AC3 passthrough support

[Colin Guthrie]

'Twas brillig, and Michael Rans at 13/07/10 19:53 did gyre and gimble:
> # Encode AC3 -> Directly on hardware
> # with Rate Converter to 48kHz, needed for some applications
> pcm.a52 {
>     @args [ CARD ]
>     @args.CARD {
>         type integer
>     }
>     type rate
>     slave {
>         pcm {
>             type a52
>             bitrate 448
>             channels 6
>             card $CARD
>         }
>         rate 48000
>     }
> }
> 
> If I replace $CARD with 0 (manually), the above works - does anyone know
> why it doesn't work when I leave the $CARD there - shouldn't it get it
> from Pulseaudio when udev tries a52:0 ? Or is this not the correct way
> to do it?

Maybe I'm wrong with that syntax....

Does this work?

pcm.a52 {
    @args.0 {
        type integer
    }
    type rate
    slave {
        pcm {
            type a52
            bitrate 448
            channels 6
            card $0
        }
        rate 48000
    }
}

-- 

Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/

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