diff options
| -rw-r--r-- | services/audioflinger/AudioFlinger.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp index 133dabd..ce701ca 100644 --- a/services/audioflinger/AudioFlinger.cpp +++ b/services/audioflinger/AudioFlinger.cpp @@ -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 { |