diff options
Diffstat (limited to 'media/libmedia')
| -rw-r--r-- | media/libmedia/AudioTrack.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp index 1bd839f..7eeb4f8 100644 --- a/media/libmedia/AudioTrack.cpp +++ b/media/libmedia/AudioTrack.cpp @@ -893,9 +893,11 @@ status_t AudioTrack::createTrack_l( ALOGW("Requested frameCount %u but received frameCount %u", frameCount, temp); } frameCount = temp; + mAwaitBoost = false; if (flags & AUDIO_OUTPUT_FLAG_FAST) { if (trackFlags & IAudioFlinger::TRACK_FAST) { ALOGV("AUDIO_OUTPUT_FLAG_FAST successful; frameCount %u", frameCount); + mAwaitBoost = true; } else { ALOGV("AUDIO_OUTPUT_FLAG_FAST denied by server; frameCount %u", frameCount); // once denied, do not request again if IAudioTrack is re-created @@ -1219,6 +1221,25 @@ bool AudioTrack::processAudioBuffer(const sp<AudioTrackThread>& thread) size_t writtenSize; mLock.lock(); + if (mAwaitBoost) { + mAwaitBoost = false; + mLock.unlock(); + static const int32_t kMaxTries = 5; + int32_t tryCounter = kMaxTries; + uint32_t pollUs = 10000; + do { + int policy = sched_getscheduler(0); + if (policy == SCHED_FIFO || policy == SCHED_RR) { + break; + } + usleep(pollUs); + pollUs <<= 1; + } while (tryCounter-- > 0); + if (tryCounter < 0) { + ALOGE("did not receive expected priority boost on time"); + } + return true; + } // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed // while we are accessing the cblk sp<IAudioTrack> audioTrack = mAudioTrack; |