The direct output thread was originally intended for: 1. audio output HALs that can't do down-sampling for certain stream types 2. voice processing e.g. echo cancellation 3. non-PCM output in low-power mode It has been used on at least one platform a while ago, but has not been used recently that I know of. The concept of the direct output thread without software mixing has potential, but it may need more design before it will be generally useful.
On Feb 7, 8:15 pm, Dean <[email protected]> wrote: > When is the AudioFlinger DirectThread ever invoked? > > DuplicatingThread appears to be invoked whenever Bluetooth and Speaker > are active simultaneously, but am unable to have the system invoke the > DirectThread. -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
