Re: [RFC 1/2] android/hal-audio-hsp: Add audio HAL for HSP handling

[Marcel Holtmann <marcel@xxxxxxxxxxxx>]

Hi Andrei,

> From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
> 
> This adds audio HAL for handling SCO. Following needs to be added to
> audio_policy.conf:
> 
>  hsp {
>    outputs {
>      hsp {
>        ...
>        devices AUDIO_DEVICE_OUT_ALL_SCO
>        ...
>      }
>    }

if we need modifications to /etc/audio_policy.conf, we should have this part of android/README or some other documentation. I also wonder if this not also needs an inputs { } section since HSP is actually full-duplex.

Also for the A2DP part, has something checked what happens if we provide additional settings.

  a2dp {
    outputs {
      a2dp {
        sampling_rates 44100
        channel_masks AUDIO_CHANNEL_OUT_STEREO
        formats AUDIO_FORMAT_PCM_16_BIT
        devices AUDIO_DEVICE_OUT_ALL_A2DP
      }
    }
  }

So something like actually telling it about all 4 sampling rates or MP3 format?

Regards

Marcel

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