| #
3c1dd448 |
|
08-Nov-2017 |
Mina Almasry <almasrymina@google.com> |
[dev][gauss audio] Get audio driver recording files
Get basic recording working. Still quite fragile. Known issues:
- Only first record in a boot session works. The driver doesn't attempt
to clean up properly at all yet.
- Recorded bytes != bits/sample * framerate * recording_duration. There
are some extra bytes.
- The driver is tested only talking to 1 client. No attempt to talk to
multiple clients yet.
- The driver only support framerate=48000, bits/sample=16, channels=8.
- The driver ignores min_ring_buffer_frames. Currently the VMO size is
hardcoded to 0x8000.
- The driver ignores notifications_per_ring. It currently sends
notifications every 0x2000 of data.
Bug: 68019773
Test: On gauss:
audio -r 48000 -b 16 -c 8 record test.wav 10
Generates recorded file that sounds quite good.
Change-Id: I3a0cfcc287b8001e8a37971c721c5bfe5bdf6a79
|