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John Muir 001e6f4650 audio: Update default audio implementation. 
Allow the default audio implementation to use the sample rate and
format provided by the application, but default to 16-bit stereo
for both input and output.

Also, default to 10ms output buffer and 20ms input buffer.

Bug: 70692394
Test: Audio device and output stream created successfully with
      the default frame_count.
      Audio device reports 20ms for input buffer size.
      Audio input stream created successfully with defaults.
      Setup device with audio_policy_configuration_stub.xml;
          no failures for GTS tests: GtsGmscoreHostTestCases
          -t 'com.google.android.gts.audio.AudioHostTest'
Change-Id: If496fc89f72f26266a7ed9b59acf88d1ca76e704
2018-01-30 12:05:24 -08:00
..
audio audio: Update default audio implementation. 2018-01-30 12:05:24 -08:00
audio_remote_submix Convert to Android.bp 2017-12-27 11:05:29 -08:00
camera camera 3_4: Fix compilation errors 2018-01-24 12:34:00 -08:00
consumerir Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
fingerprint Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
gralloc Fix compiler warnings. 2017-12-19 13:42:15 -08:00
hwcomposer Convert to Android.bp 2017-12-27 11:05:29 -08:00
input/evdev Convert to Android.bp 2017-12-27 11:05:29 -08:00
local_time Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
nfc Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
nfc-nci Merge "Use -Werror in hardware/libhardware" am: d1a2b9f7c1 am: d67dcc5fc8 2017-10-12 01:58:44 +00:00
power Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
radio Merge changes from topic "libhardware_vndk" 2017-09-06 15:58:26 +00:00
sensors Convert to Android.bp 2017-12-27 11:05:29 -08:00
soundtrigger Convert to Android.bp 2017-12-27 11:05:29 -08:00
thermal Convert to Android.bp 2017-12-27 11:05:29 -08:00
tv_input Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
usbaudio Merge "Convert to Android.bp" am: 90e0a80af3 am: 243ba5e7b2 2017-12-28 19:38:41 +00:00
usbcamera Convert to Android.bp 2017-12-27 11:05:29 -08:00
vibrator Use -Werror in hardware/libhardware 2017-10-04 11:09:30 -07:00
vr Convert to Android.bp 2017-12-27 11:05:29 -08:00
Android.mk Convert to Android.bp 2017-12-27 11:05:29 -08:00
README.android Move default HAL libraries to vendor 2017-03-07 11:28:32 +08:00

README.android 

Default (and possibly architecture dependents) HAL modules go here. 


libhardware.so eventually should contain *just* the HAL hub
(hardware.c), everything in it should be rewritten as modules.

Modules are .so in /vendor/lib/hw/ and have a well defined naming
convention:

    /vendor/lib/hw/<*_HARDWARE_MODULE_ID>.<ro.product.board>.so
    /vendor/lib/hw/<*_HARDWARE_MODULE_ID>.<ro.board.platform>.so
    /vendor/lib/hw/<*_HARDWARE_MODULE_ID>.<ro.arch>.so
    /vendor/lib/hw/<*_HARDWARE_MODULE_ID>.default.so

They also have a well defined interface which lives in include/hardware/.

A module can have several variants: "default", "arch" and "board", and they're
loaded in the "board", "arch" and "default" order.
The source code for the "board" variant, usually lives under partners/...

The source code for "default" and "arch" would usually
live under hardware/modules/.