| eb3c337a3d6c74ec857dfc8be7eeafe634614bcd |
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25-Sep-2013 |
Eric Laurent <elaurent@google.com> |
fix deadlock in audioflinger::createEffect()
commit 5baf2af5 introduced a regression by calling
getOutputForEffect() with AudioFLinger main mutex locked.
The locking order must always be AudioPolicyService mutex then
AudioFlinger then ThreadBase mutex.
Bug: 10916796.
Change-Id: Ide34a2d84dbb06dbb35abd0640d91b01b0ac4d40
/frameworks/av/services/audioflinger/Effects.h
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| 5baf2af52cd186633b7173196c1e4a4cd3435f22 |
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13-Sep-2013 |
Eric Laurent <elaurent@google.com> |
more support for audio effect offload
Offloading of audio effects is now enabled for offloaded
output threads. If an effect not supporting offload is enabled,
the AudioTrack is invalidated so that it can be recreated in PCM
mode.
Fix some issues in effect proxy related to handling of effect
commands to offloaded and non offloaded effects.
Also fixed a bug on capture index in software Visualizer effect.
Bug: 8174034.
Change-Id: Ib23d3c2d5a652361b0aaec7faee09102f2b18fce
/frameworks/av/services/audioflinger/Effects.h
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| 813e2a74853bde19e37d878c596a044b3f299efc |
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31-Aug-2013 |
Eric Laurent <elaurent@google.com> |
audioflinger: no effects on offloaded tracks
Invalidate offloaded tracks when an effect is enabled
so that the track is recreated in PCM mode and the effect
can be applied.
This is temporary until effect offloading is implemented.
Bug: 8174034.
Change-Id: I77b8b54a10db6cb8334be76d863ea7e720eaad09
/frameworks/av/services/audioflinger/Effects.h
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| bfb1b832079bbb9426f72f3863199a54aefd02da |
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07-Jan-2013 |
Eric Laurent <elaurent@google.com> |
AudioFlinger: offload playback, non-blocking write
- Added specialized playback thread class for offload playback,
derived from directoutput thread.
This thread type handles specific state transitions for offloaded
tracks and offloading commands (pause/resume/drain/flush..) to audio HAL.
As opposed to other threads, does not go to standby if the track is paused.
- Added support for asynchronous write and drain operations at audio HAL.
Use a thread to handle async callback events from HAL: this avoids locking
playback thread mutex when executing the callback and cause deadlocks when
calling audio HAL functions with the playback thread mutex locked.
- Better accouting for track activity: call start/stop and release Output
methods in audio policy manager when tracks are actually added and removed
from the active tracks list.
Added a command thread in audio policy service to handle stop/release commands
asynchronously and avoid deadlocks with playback thread.
- Track terminated status is not a state anymore. This condition is othogonal
to state to permitted state transitions while terminated.
Change-Id: Id157f4b3277620568d8eace7535d9186602564de
/frameworks/av/services/audioflinger/Effects.h
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| 81784c37c61b09289654b979567a42bf73cd2b12 |
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19-Nov-2012 |
Eric Laurent <elaurent@google.com> |
AudioFlinger files reorganization
Audioflinger.cpp and Audioflinger.h files must be split to
improve readability and maintainability.
This CL splits the files as follows:
AudioFlinger.cpp split into:
- AudioFlinger.cpp: implementation of IAudioflinger interface and global methods
- AFThreads.cpp: implementation of ThreadBase, PlaybackThread, MixerThread,
DuplicatingThread, DirectOutputThread and RecordThread.
- AFTracks.cpp: implementation of TrackBase, Track, TimedTrack, OutputTrack,
RecordTrack, TrackHandle and RecordHandle.
- AFEffects.cpp: implementation of EffectModule, EffectChain and EffectHandle.
AudioFlinger.h is modified by inline inclusion of header files containing
the declaration of complex inner classes:
- AFThreads.h: ThreadBase, PlaybackThread, MixerThread, DuplicatingThread,
DirectOutputThread and RecordThread
- AFEffects.h: EffectModule, EffectChain and EffectHandle
AFThreads.h includes the follownig headers inline:
- AFTrackBase.h: TrackBase
- AFPlaybackTracks: Track, TimedTrack, OutputTrack
- AFRecordTracks: RecordTrack
Change-Id: I512ebc3a51813ab7a4afccc9a538b18125165c4c
/frameworks/av/services/audioflinger/Effects.h
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