drgreen/android_frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

am 7eeaf3f0: Merge "AudioFlinger: refine mixer sleep time logic" into ics-mr1

Browse Source 
* commit '7eeaf3f07aa6fb10639d9f96c1367eb98c3e8839':
  AudioFlinger: refine mixer sleep time logic
This commit is contained in:
Eric Laurent
2012-01-24 11:51:50 -08:00
committed by Android Git Automerger
parent dd347d515d 7eeaf3f07a
commit 535b0264a4
1 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
services/audioflinger/AudioFlinger.cpp
View File

@ -1973,11 +1973,14 @@ bool AudioFlinger::MixerThread::threadLoop()
if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) {
// mix buffers...
mAudioMixer->process();
sleepTime = 0;
// increase sleep time progressively when application underrun condition clears
if (sleepTimeShift > 0) {
// increase sleep time progressively when application underrun condition clears.
// Only increase sleep time if the mixer is ready for two consecutive times to avoid
// that a steady state of alternating ready/not ready conditions keeps the sleep time
// such that we would underrun the audio HAL.
if ((sleepTime == 0) && (sleepTimeShift > 0)) {
sleepTimeShift--;
}
sleepTime = 0;
standbyTime = systemTime() + kStandbyTimeInNsecs;
//TODO: delay standby when effects have a tail
} else {