History log of /frameworks/base/include/media/AudioSystem.h
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
05ce0941649c3cdd7f8034496719e607977fc005 30-Aug-2011 Eric Laurent <elaurent@google.com> 226483: A2DP connected, but music out to speaker

When the A2DP headset is connected, there is a possible
race condition when the audio tracks are moved from
the mixer thread attached to the speaker output to the thread
attached to A2DP output.
As the request to clear the stream type to output mapping cache in
the client process is asynchronous, it is possible that the flag
indicating to the client audio track to re-create the IAudioTrack
on the new thread is processed before the cache is invalidated.
In this case, the track will be attached to the old thread and
music will continue playing over the device speaker instead of being
redirected to A2DP headset.

Change-Id: Ib2ce1eb5320eaff83287b93779061bf4e7a330df
/frameworks/base/include/media/AudioSystem.h
6752ec80b25cb1f39507d18745c7e62323772cda 10-Aug-2011 Eric Laurent <elaurent@google.com> Audio effects: track CPU and memory use separately

Before this change, CPU and memory usage for an audio effect were
registered and checked against the limit by audio policy manager
upon effect instantiation. Even if an effect was not enabled
it would prevent another effect to be created if the CPU load budget
was exceeded, which was too restrictive.

This change adds a method to register/unregister CPU load only when
an effect is enabled or disabled.
It also adds a mechanism to place all effects on the global output mix
in suspend state (disabled) when an effect is enabled on a specific session.
This will allow applications using session effects to have the priority
over others using global effects.

Also fixes some issues with suspend/restore mechanism:
- avoid taking actions when an effect is disconnected and was not enabled.
- do not remove a session from the suspended sessions list when corresponding
effect chain is destroyed.

Change-Id: I5225278aba1ae13d0d0997bfe26a0c9fb46b17d3
/frameworks/base/include/media/AudioSystem.h
c74b93fdf3ddb6fdab7878edab4d304fb14917f9 02-Aug-2011 Marco Nelissen <marcone@google.com> Keep effects sessions active when the caller dies.

Don't remove effects until the session they are in goes away or all
AudioEffects have been explicitly released. This allows the control
panel process to die without stopping the effects.

Change-Id: I4496e5df080230ca1af149dec95c1309ab8ea888
/frameworks/base/include/media/AudioSystem.h
464d5b3da21c84ba13dc69c611d40f6bed49badb 18-Jun-2011 Eric Laurent <elaurent@google.com> Audio framework: support for audio pre processing

Audio effect framework is extended to suport effects on
output and input audio path.

AudioFlinger: Support for audio effects and effect chains is
moved from PlaybackThread class to ThreadBase class so that
RecordThread can manage effects.
Effects of type pre processing are allowed on record thread
only. When a pre processing is enabled, the effect interface handle is
passed down to the input stream so that the audio HAL can call the
process function. The record thread loop calls the effect chain process
function that will only manage the effect state and commands and skip the
process function.

AudioRecord: The audio session is allocated before calling getInput() into
audio policy serice so that the session is known before the input theead is
created and pre processings can be created on the correct session.

AudioPolicyService: default pre processing for a given input source are
loaded from audio_effects.conf file.
When an input is created, corresponding effects are created and enabled.

Change-Id: Id17119e0979b4dcf189b5c7957fec30dc3478790
/frameworks/base/include/media/AudioSystem.h
290029d19a9d314e925b73e19453ab0497602f80 14-Jun-2011 Dima Zavin <dima@android.com> audio: update for audio/audio_policy header names/locations

Change-Id: I36c49352eee57559403cd1597f56a8485a360289
Signed-off-by: Dima Zavin <dima@android.com>
/frameworks/base/include/media/AudioSystem.h
34bb419e5946ab28112e9e27a4d1b3928d31e0e2 11-May-2011 Dima Zavin <dima@android.com> update for new audio.h header location

Change-Id: Ic4c62c4037800802427eb7d3c7f5eb8b25d18876
Signed-off-by: Dima Zavin <dima@android.com>
/frameworks/base/include/media/AudioSystem.h
24fc2fb1c541e954b83fd31ea9f786a5e9b45501 20-Apr-2011 Dima Zavin <dima@android.com> audio/media: convert to using the audio HAL and new audio defs

Change-Id: Ibc637918637329e4f2b62f4ac7781102fbc269f5
Signed-off-by: Dima Zavin <dima@android.com>
/frameworks/base/include/media/AudioSystem.h
4dc22e77cfd2a1c3671e5646ee87c5e4c15596a0 20-Apr-2011 Dima Zavin <dima@android.com> libmedia: move AudioParameter out of AudioSystem

Change-Id: I9eb7e002d141936258050d4fa4f0ccd8202bfc54
Signed-off-by: Dima Zavin <dima@android.com>
/frameworks/base/include/media/AudioSystem.h
ed0079ddddd4070f3369b13b274222da2e69f4b9 04-Apr-2011 Glenn Kasten <gkasten@google.com> Miscellaneous code cleanup in audio framework

Changes:
- Move declaration of kClassPathName to top of file so it can be used
in more than one place, instead of "android/media/AudioSystem".
- Make private methods static.
- Add comment to stream_type, audio_mode, force_use types that they must match
values in AudioSystem.java.
- Add comment about unused types mp3_sub_format and vorbis_sub_format.
- Fix typos.
- Use @ in javadoc comments.
- Delete dead APIs setMode, getMode, setRouting, getRouting in AudioSystem.java
(they are all hidden, deprecated, and unused by rest of framework)
- Delete unused private log method.
- Fix pathname for android_media_AudioSystem.cpp.
- Improve code formatting for space after == and !=.
- Add logging of delta for changing audio policy manager ref count.

Change-Id: I18037c7beb8ab76d1fda08c11e589f6e591d36e1
/frameworks/base/include/media/AudioSystem.h
8b4b97a14ad9b5b982d8fe92755efabec8ad0076 04-Feb-2011 Glenn Kasten <gkasten@google.com> Bug 3352047 Wrong message when adjusting volume

Add hidden AudioManager.getDevicesForStream and output device codes.

Change-Id: I4d1c1d3b6a077cd117720817d1f733dda557b947
/frameworks/base/include/media/AudioSystem.h
25101b0b9a84571ead15b26e9f4cd9c4298d7823 02-Feb-2011 Eric Laurent <elaurent@google.com> Fix issue 3371080

Modified default volume control logic in AudioService:
1 IN_CALL volume if in video/audio chat
2 NOTIFICATION if notification is playing or was playing less than 5s ago.
3 MUSIC

Modified silent mode:
- now also affect MUSIC stream type
- entering silent mode when VOL- hard key is pressed once while selected
stream volume is already at 0 (except for VOICE_CALL stream).
- exiting silent mode when pressing VOL+ hard key while in silent mode

Play sound FX (audible selections, keyboard clicks) at a fixed volume.

Modified audio framework:
- isStreamActive() method now implemented in AudioPolicyManagerBase (previously AudioFlinger)
- iStreamActive() now specifies a time window during which the stream is considered
active after it actually stopped.

Change-Id: I7e5a0724099450b9fc90825224180ac97322785f
/frameworks/base/include/media/AudioSystem.h
8f677d66d9c3ba34c97e69b2bb9e161f129af0ee 15-Nov-2010 Jean-Michel Trivi <jmtrivi@google.com> Add new audio mode for audio communications other than telelphony.

The audio mode MODE_IN_CALL signals the system the device a phone
call is currently underway. There was no way for audio video
chat or VoIP applications to signal a call is underway, but not
using the telephony resources. This change introduces a new mode
to address this. Changes in other parts of the system (java
and native) are required to take this new mode into account.
The generic AudioPolicyManager is updated to not use its phone
state variable directly, but to use two new convenience methods,
isInCall() and isStateInCall(int) instead.

Change-Id: Id744cd26520ea1d1a4795eabe6a1f0c58789af76
/frameworks/base/include/media/AudioSystem.h
1a22bdb01ac4068c2876fe2d02f3c4c729669a1c 09-Nov-2010 Jean-Michel Trivi <jmtrivi@google.com> Add support for audio recording source in generic audio policy mgr.

Update the platform-independent audio policy manager to pass the
nature of the audio recording source to the audio policy client
interface through the AudioPolicyClientInterface::setParameters()
method.

Change-Id: I6b4fd0f8a3acea0d7d30bbad98edd1977dc012bf
/frameworks/base/include/media/AudioSystem.h
21e941bf43362ddc6639a9f2d0828053360f53d7 06-Oct-2010 Praveen Bharathi <pbharathi@motorola.com> Added support for dock headset observer

Change-Id: I06b2e65e3bfa10735e6c7fd3349afa9ae7d45292
Signed-off-by: Praveen Bharathi <pbharathi@motorola.com>
/frameworks/base/include/media/AudioSystem.h
8ed6ed0b6216a9dfcbcd6a5ba6a62d28a901baec 13-Jul-2010 Eric Laurent <elaurent@google.com> Audio policy manager changes for audio effects

Added methods for audio effects management by audio policy manager.
- control of total CPU load and memory used by effect engines
- selection of output stream for global effects
- added audio session id in parameter list for startOutput() and stopOutput().
this is not used in default audio policy manager implementation.

Modifications of audio effect framework in AudioFlinger to allow moving and reconfiguring
effect engines from one output mixer thread to another when audio tracks in the same session
are moved or when requested by audio policy manager.
Also fixed mutex deadlock problem with effect chains locks.

Change-Id: Ida43484b06e9b890d6b9e53c13958d042720ebdb
/frameworks/base/include/media/AudioSystem.h
53334cdb81bab4a4dfd0a41d2ef50709015a36c8 24-Jun-2010 Eric Laurent <elaurent@google.com> Various fixes and improvements in audio effects implementation

Effect API:
- Use different definitions for audio device, channels, formats... in AudioSystem and EffectApi:
Removed media/AudioCommon.h file created for initial version of EffectApi
- Indicate audio session and output ID to effect library when calling EffectCreate(). Session ID can be useful to optimize
the implementation of effect chains in the same audio session. Output ID can be used for effects implemented in audio hardware.
- Renamed EffectQueryNext() function to EffectQueryEffect() and changed operating mode:
now an index is passed for the queried effect instead of implicitly querying the next one.
- Added CPU load and memory usage indication in effects descriptor
- Added flags and commands to indicate changes in audio mode (ring tone, in call...) to effect engine
- Added flag to indicate hardware accelerated effect implementation.
- Renamed EffectFactoryApi.h to EffectsFactoryApi.h for consistency with EffectsFactory.c/h

Effect libraries:
- Reflected changes in Effect API
- Several fixes in reverb implementation
- Added build option TEST_EFFECT_LIBRARIES in makefile to prepare integration of actual effect library.
- Replaced pointer by integer identifier for library handle returned by effects factory

Audio effect framework:
- Added support for audio session -1 in preparation of output stage effects configuration.
- Reflected changes in Effect API
- Removed volume ramp up/down when effect is inserted/removed: this has to be taken care of by effect engines.
- Added some overflow verification on indexes used for deferred parameter updates via shared memory
- Added hardcoded CPU and memory limit check when creating a new effect instance

Change-Id: I43fee5182ee201384ea3479af6d0acb95092901d
/frameworks/base/include/media/AudioSystem.h
65b65459e6ac59f8a257009df8014467ae0838ee 02-Jun-2010 Eric Laurent <elaurent@google.com> Issue 2667801: [Audio Effect Framework] AudioFlinger, AudioMixer AudioTrack modifications.

First drop of audio framework modifications for audio effects support.

- AudioTrack/AudioRecord:
Added support for auxiliary effects in AudioTrack
Added support for audio sessions
Fixed left right channel inversion in setVolume()

- IAudioFlinger:
Added interface methods for effect enumeraiton and instantiation
Added support for audio sessions.

- IAudioTrack:
Added method to attach auxiliary effect.

- AudioFlinger
Created new classes to control effect engines in effect library and manage effect connections to tracks or
output mix:
EffectModule: wrapper object controlling the effect engine implementation in the effect library. There
is one EffectModule per instance of an effect in a given audio session
EffectChain: group of effects associated to one audio session. There is one EffectChain per audio session.
EffectChain for session 0 is for output mix effects, other chains are attached to audio tracks
with same session ID. Each chain contains a variable number of EffectModules
EffectHandle: implements the IEffect interface. There is one EffectHandle object for each application
controlling (or using) an effect module. THe EffectModule maintians a list of EffectHandles.

Added support for effect modules and effect chains creation in PlaybackThread.
modified mixer thread loop to allow track volume control by effect modules and call effect processing.

-AudioMixer
Each track now specifies its output buffer used by mixer for accumulation
Modified mixer process functions to process tracks by groups of tracks with same buffer
Modified track process functions to support accumulation to auxiliary channel

Change-Id: I26d5f7c9e070a89bdd383e1a659f8b7ca150379c
/frameworks/base/include/media/AudioSystem.h
5fe37c6838de9fbd959ad19ba44aa3d00d1b4e6f 21-May-2010 Eric Laurent <elaurent@google.com> Fix issue 2667796: [Audio Effect Framework] Effect factory and libraries.

First effect factory and effect library API implementation.
Also added default effect libraries for reverb and equalizer effects.
These libraries are for functional test only and are not fine tuned with
regard to audio quality. They will probably be replaced by other implementations
before the release.

Change-Id: I6868f8612146ae282c64052765c61a52ec789ec8
/frameworks/base/include/media/AudioSystem.h
47d0a9264fa5297db6333697ad750e6bc06822aa 26-Feb-2010 Eric Laurent <elaurent@google.com> Issue 2071329: audio track is shorter than video track for video capture on sholes

Add API to retrieve number of frames dropped by audio input kernel driver.

Submitted on behalf of Masaki Sato <masaki.sato@motorola.com>
/frameworks/base/include/media/AudioSystem.h
0986e7907ffc8387b04fb201e285784bcd11b9b7 20-Jan-2010 Eric Laurent <elaurent@google.com> Fix issue 2285561: New AudioFlinger and audio driver API needed for A/V sync

Added getRenderPosition() API to IAudioFlinger to retreive number of audio frames
written by AudioFlinger to audio HAL and by DSP to DAC.

Added getRenderPosition() API to AudioHardwareInterface to retreive number of audio frames
written by DSP to DAC.

Exposed AudioTrack::getPosition() to AudioSink() to make it available to media player.

Removed excessive log in AudioHardwareGeneric.
/frameworks/base/include/media/AudioSystem.h
23f25cda0c73f8eb878844dea32fb0bd419edca2 25-Jan-2010 Eric Laurent <elaurent@google.com> Fix issue 2378022: AudioService should direct volume control to STREAM_VOICE_CALL stream when STREAM_VOICE_CALL stream is active.

Modified AudioService.getActiveStreamType() so that STREAM_VOICE_CALL is selected when a track using this stream
type is playing.

Chanded isMusicActive() for a more generic isStreamActive(stream) method in AudioSystem, IAudioFlinger and AudioFlinger.
/frameworks/base/include/media/AudioSystem.h
cef3cd79489fa7897ffbacbc4e435651fb04f10d 10-Dec-2009 Eric Laurent <elaurent@google.com> Create base class for audio policy manager.

First implementations of audio policy manager in Eclair branch have shown that most code is common to all platforms.
Creating AudioPolicyManagerBase base class will improve code maintainability and readability.

Audio policy manager code for platforms using generic audio previously in AudioPolicyManagerGeneric is replaced by AudioPolicyManagerBase.
Audio policy manager test code previously in AudioPolicyManagerGeneric is moved to AudioPolicyManagerBase.

Also added a wake lock for delayed commands in AudioPolicyService.
/frameworks/base/include/media/AudioSystem.h
eb14a783be073b5fd6e8c8c9bc87d2d1919f2c9e 17-Dec-2009 Eric Laurent <elaurent@google.com> Fix issues 2333450 and 2333559:

Add new config values to AudioSystem::FOR_DOCK force usage to differenciate car and desk docks.
Use a receiver for the sticky Intent.ACTION_DOCK_EVENT in AudioService to detect the type
of dock and select force usage accordingly.
/frameworks/base/include/media/AudioSystem.h
6154412ee8e07e9cde129cccb944dd7ed9dcef53 08-Dec-2009 Jean-Michel Trivi <jmtrivi@google.com> Partially fix bug 2111240 Detect docking / undocking event by reporting
to the AudioPolicyManager a new forced usage AudioSystem::FOR_DOCK
which can take the FORCE_NONE, FORCE_BT_DOCK or FORCE_WIRED_ACCESSORY
values. This CL is complemented by an update of the APM to take into
account the FOR_DOCK usage.
/frameworks/base/include/media/AudioSystem.h
923d7d721d37f6ba5148e7d79d61a4fa48e79df2 12-Nov-2009 Eric Laurent <elaurent@google.com> Fix issue 2242614: Wired headset not recognized: bogus "state" in ACTION_HEADSET_PLUG broadcast.

The headset state indicated by HeadsetObserver in the broadcast intent ACTION_HEADSET_PLUG was not 0 or 1 as specified in the java doc but contained a bit field indicating the type of headset connected.

Modified HeadsetObserver to broacast a state conforming to java doc.
Added an extra to intent ACTION_HEADSET_PLUG to indicate if headset has a microphone or not.
Removed handling of non standard headset indications from HeadsetObserver.
Removed platform specific devices from output devices defined in AudioSystem.
Modified AudioService to use new ACTION_HEADSET_PLUG intent extra instead of bitfield in state.
/frameworks/base/include/media/AudioSystem.h
f22a0975c442f1f216f16db3ddb27015d72c6532 02-Nov-2009 Eric Laurent <elaurent@google.com> Fix 2194140: [Passion] Support Audience chip.

Added new input device DEVICE_IN_BACK_MIC.
Added new audio source AUDIO_SOURCE_CAMCORDER.
/frameworks/base/include/media/AudioSystem.h
415f3e2875b8b0b860d0dd6a69ff6868571c36bb 21-Oct-2009 Eric Laurent <elaurent@google.com> Fix issue 2192181: AudioFlinger must provide separated methods to set VOICE_CALL stream volume and down link audio volume.

Added setVoiceVolume() method to AudioSystem, AudioFlinger, IAudioFlinger, AudioPolicyService.
Removed call to AudioHardwareInterface::setVoiceVolume() from AudioFlinger::setStreamVolume().
/frameworks/base/include/media/AudioSystem.h
327c27be19ad333c4835c84397152a0b2cb33081 27-Aug-2009 Eric Laurent <elaurent@google.com> Fix issue 2045911: Camera Shutter tone does not play correctly while listening to music.

Add the possibility to delay routing and volume commands in AudioPolicyClientInterface. The delay is not blocking for the caller.
/frameworks/base/include/media/AudioSystem.h
ddb78e7753be03937ad57ce7c3c842c52bdad65e 28-Jul-2009 Eric Laurent <elaurent@google.com> Fix issue 2001214: AudioFlinger and AudioPolicyService interfaces should not use pointers as handles to inputs and outputs.

Use integers instead of void* as input/output handles at IAudioFlinger and IAudioPolicyService interfaces.
AudioFlinger maintains an always increasing count of opened inputs or outputs as unique ID.
/frameworks/base/include/media/AudioSystem.h
3026a023b8979b7ddcb3fe97bbc45531c89fda92 27-Jul-2009 Eric Laurent <elaurent@google.com> Fix issue 2001517: AudioTrack compatibility issue.

Modified enum values in AudioFormat.java and AudioSystem.h.
Added code for backward compatibility in AudioTrack.java and AudioRecord.java.
/frameworks/base/include/media/AudioSystem.h
a553c25b33c99b345cf1c8688f8df0ed8df14e5a 17-Jul-2009 Eric Laurent <elaurent@google.com> Fix issue 1795088 Improve audio routing code

Initial commit for review.
Integrated comments after patch set 1 review.
Fixed lockup in AudioFlinger::ThreadBase::exit()
Fixed lockup when playing tone with AudioPlocyService startTone()
/frameworks/base/include/media/AudioSystem.h
63e45f2854c86a9edf71e4159c9d93ad9a1e8f0d 28-Mar-2009 Eric Laurent <> AI 143327: am: CL 143177 am: CL 142889 Fix issue #1736153 Camera shutter sound can be muted by new AlarmClock setting.
Current implementation of Camera service plays the camera shutter sound over the ALARM stream so that it cannot be muted by silent mode in order to comply to some country specific requirement. A recent change made it possible for the user to mute the ALARM stream thus making this stream not suitable any more for the camera shutter sound.
The fix consists in creating a new stream type only accessible by native code and that cannot be muted and use it to play camera sounds.
Original author: elaurent
Merged from: //branches/cupcake/...
Original author: android-build
Merged from: //branches/donutburger/...

Automated import of CL 143327
/frameworks/base/include/media/AudioSystem.h
9066cfe9886ac131c34d59ed0e2d287b0e3c0087 04-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@135843
/frameworks/base/include/media/AudioSystem.h
d83a98f4ce9cfa908f5c54bbd70f03eec07e7553 04-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@135843
/frameworks/base/include/media/AudioSystem.h
3001a035439d8134a7d70d796376d1dfbff3cdcd 19-Feb-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //branches/cupcake/...@132276
/frameworks/base/include/media/AudioSystem.h
da996f390e17e16f2dfa60e972e7ebc4f868f37e 13-Feb-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //branches/cupcake/...@131421
/frameworks/base/include/media/AudioSystem.h
d24b8183b93e781080b2c16c487e60d51c12da31 11-Feb-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //branches/cupcake/...@130745
/frameworks/base/include/media/AudioSystem.h
f013e1afd1e68af5e3b868c26a653bbfb39538f8 18-Dec-2008 The Android Open Source Project <initial-contribution@android.com> Code drop from //branches/cupcake/...@124589
/frameworks/base/include/media/AudioSystem.h
54b6cfa9a9e5b861a9930af873580d6dc20f773c 21-Oct-2008 The Android Open Source Project <initial-contribution@android.com> Initial Contribution
/frameworks/base/include/media/AudioSystem.h