audio policy: engine configurable: improve accessibility volume
This is the counter part patch of 28d09f06422841b4274d7fed6ad3441dc97382b2
for configurable engine verion based on the parameter framework.
It solves:
regressions caused by the introduction of accessibility stream type and strategy in M.
- change the way ACCESSIBILITY usage maps to a given strategy: always map
to strategy ACCESSIBILITY but implement a specific device selection for
strategy ACCESSIBILITY in getDeviceForStrategy(). This makes sure that
accessibility prompts always use ACCESSIBILITY stream type.
- optimize getDeviceForStrategy() to avoid reloading the list of outputs
and devices from the observer when called recursively.
- make sure that all volume APIs also take into account ACCESSIBILITY stream
when called for MUSIC stream. Generalize the concept of matching strategies
for straqegies that should be considered equivalent for volume control.
Bug: 25067903
Bug: 25616373
Change-Id: Ie674e6bfb5d1b25f71a9fd31cd2405c263b1732b
Signed-off-by: François Gaffie <francois.gaffie@intel.com>
3 files changed