| commit | 42979149ac67727de85b1e5fc5cf874cf709eb36 | |
| author | ajm <ajm@chromium.org> | |
| Mon, 14 Sep 2015 18:41:13 +0000 (14 11:41 -0700) | ||
| committer | Commit bot <commit-bot@chromium.org> | |
| Mon, 14 Sep 2015 18:42:13 +0000 (14 18:42 +0000) | ||
| tree | 23c9f13e413db3258ac667fbcbe9e32250ac6a7d | treesnapshot (tar.gz zip) |
| parent | 4528b0df09b22145b71e3d04836319aab5a47920 | commitdiff |
Add a virtual beamforming audio device on ChromeOS.
AudioManagerCras checks with CrasAudioHandler for an internal mic
device with a valid positions field. If present, it adds a virtual
beamforming device.
When this device is selected by a web app, the mic positions are plumbed
up to MediaStreamAudioProcessor via AudioParameters. MSAP will enable
beamforming when it sees valid mic positions.
See the design doc for background:
go/virtual-beamforming-device
BUG=497001
TEST=Selecting the beamforming device on a swanky indeed enables
beamforming for the internal mic and continues to work fine for an
external USB mic. Selecting the non-beamforming device disables
beamforming for the internal mic.
Review URL: https://codereview.chromium.org/1275783003
Cr-Commit-Position: refs/heads/master@{#348668}
AudioManagerCras checks with CrasAudioHandler for an internal mic
device with a valid positions field. If present, it adds a virtual
beamforming device.
When this device is selected by a web app, the mic positions are plumbed
up to MediaStreamAudioProcessor via AudioParameters. MSAP will enable
beamforming when it sees valid mic positions.
See the design doc for background:
go/virtual-beamforming-device
BUG=497001
TEST=Selecting the beamforming device on a swanky indeed enables
beamforming for the internal mic and continues to work fine for an
external USB mic. Selecting the non-beamforming device disables
beamforming for the internal mic.
Review URL: https://codereview.chromium.org/1275783003
Cr-Commit-Position: refs/heads/master@{#348668}
33 files changed: