diff options
-rw-r--r-- | include/media/AudioRecord.h | 5 | ||||
-rw-r--r-- | media/libmedia/AudioRecord.cpp | 31 |
2 files changed, 31 insertions, 5 deletions
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h index 8973c5c..eef108b 100644 --- a/include/media/AudioRecord.h +++ b/include/media/AudioRecord.h @@ -448,7 +448,10 @@ private: void* mUserData; // for notification APIs - uint32_t mNotificationFrames; // frames between each notification callback + uint32_t mNotificationFramesReq; // requested number of frames between each + // notification callback + uint32_t mNotificationFramesAct; // actual number of frames between each + // notification callback bool mRefreshRemaining; // processAudioBuffer() should refresh next 2 // These are private to processAudioBuffer(), and are not protected by a lock diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp index b9a3b76..2718420 100644 --- a/media/libmedia/AudioRecord.cpp +++ b/media/libmedia/AudioRecord.cpp @@ -267,7 +267,8 @@ status_t AudioRecord::set( mActive = false; mCbf = cbf; - mNotificationFrames = notificationFrames; + mNotificationFramesReq = notificationFrames; + mNotificationFramesAct = 0; mRefreshRemaining = true; mUserData = user; // TODO: add audio hardware input latency here @@ -455,7 +456,8 @@ status_t AudioRecord::openRecord_l( if ((mTransfer != TRANSFER_CALLBACK) || (mAudioRecordThread == 0)) { ALOGW("AUDIO_INPUT_FLAG_FAST denied by client"); // once denied, do not request again if IAudioRecord is re-created - mFlags = (audio_input_flags_t) (flags & ~AUDIO_INPUT_FLAG_FAST); + flags = (audio_input_flags_t) (flags & ~AUDIO_INPUT_FLAG_FAST); + mFlags = flags; } else { trackFlags |= IAudioFlinger::TRACK_FAST; tid = mAudioRecordThread->getTid(); @@ -491,6 +493,27 @@ status_t AudioRecord::openRecord_l( mCblkMemory = iMem; audio_track_cblk_t* cblk = static_cast<audio_track_cblk_t*>(iMem->pointer()); mCblk = cblk; + // FIXME missing fast track frameCount logic + mAwaitBoost = false; + mNotificationFramesAct = mNotificationFramesReq; + if (flags & AUDIO_INPUT_FLAG_FAST) { + if (trackFlags & IAudioFlinger::TRACK_FAST) { + ALOGV("AUDIO_INPUT_FLAG_FAST successful; frameCount %u", frameCount); + mAwaitBoost = true; + // double-buffering is not required for fast tracks, due to tighter scheduling + if (mNotificationFramesAct == 0 || mNotificationFramesAct > frameCount) { + mNotificationFramesAct = frameCount; + } + } else { + ALOGV("AUDIO_INPUT_FLAG_FAST denied by server; frameCount %u", frameCount); + // once denied, do not request again if IAudioRecord is re-created + flags = (audio_input_flags_t) (flags & ~AUDIO_INPUT_FLAG_FAST); + mFlags = flags; + if (mNotificationFramesAct == 0 || mNotificationFramesAct > frameCount/2) { + mNotificationFramesAct = frameCount/2; + } + } + } // starting address of buffers in shared memory void *buffers = (char*)cblk + sizeof(audio_track_cblk_t); @@ -498,7 +521,7 @@ status_t AudioRecord::openRecord_l( // update proxy mProxy = new AudioRecordClientProxy(cblk, buffers, frameCount, mFrameSize); mProxy->setEpoch(epoch); - mProxy->setMinimum(mNotificationFrames); + mProxy->setMinimum(mNotificationFramesAct); mDeathNotifier = new DeathNotifier(this); mAudioRecord->asBinder()->linkToDeath(mDeathNotifier, this); @@ -745,7 +768,7 @@ nsecs_t AudioRecord::processAudioBuffer(const sp<AudioRecordThread>& thread) } // Cache other fields that will be needed soon - size_t notificationFrames = mNotificationFrames; + size_t notificationFrames = mNotificationFramesAct; if (mRefreshRemaining) { mRefreshRemaining = false; mRemainingFrames = notificationFrames; |