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
Audio sessions are used to associate audio effects to particular instances (or groups) of MediaPlayers or AudioTracks.
Change-Id: Ib94eec43241cfcb416590f435ddce7ab39a07640
Added AudioEffect C++ class. AudioEffect is the base class for effect specific implementations,
OpenSL ES effect interfaces and audio effect JNI.
Added the AudioEffect JNI and AudioEffect JAVA class. AudioEffect is the base class
to implement more specific JAVA classes to control audio effects from JAVA applications.
Change-Id: If300a1b708f2e6605891261e67bfb4f8330a4624
The problem is that we are referring an temp object returned from a function call.
When the function call returned, the temp object is gone; and thus the reference
may be invalidated.
-- rebased
bug - 2734946
Change-Id: I1993c4462df95610ca478f816adc30058af5850e
Surfaces can now be parcelized and sent to remote
processes. When a surface crosses a process
boundary, it looses its connection with the
current process and gets attached to the new one.
Change-Id: I39c7b055bcd3ea1162ef2718d3d4b866bf7c81c0
this is used in a few places to get access to the android.view.Surface
native surface. use a macro instead. Also rename the field to mNativeSurface.
Change-Id: I1c6dea14abd6b8b1392c7f97b304115999355094
MediaMetadataRetriever uses a single static lock for all operations.
This effectively serializes all metadata retrieval operations in a
single process. This patch uses the object level lock for all normal
operations and only uses the static lock to serialize calls to
release.
Change-Id: I81c9f234c2f0007a26d18e1398c709b41a4dbbd7
SoundPool itself also creates a thread, which was called "SoundPoolThread", unrelated to the SoundPoolThread class. The SoundPoolThread class then created an unnamed thread, which showed up as "android:unnamed_thread". That's confusing, so this change renames the SoundPool thread to "SoundPool" and then names the SoundPoolThread thread as "SoundPoolThread". Say that ten times fast :)
Change-Id: I67b7e644a30c94b6eda44bf970764a52a1c2958b
- I decided to completely remove jpeg decoding related stuff from this change
I think that setting is better off if it is specified by the system properties.
We don't have to include MediaProfiles.h header in skia files
AudioTrack was modified earlier to calculate minimum buffer size
based on the hardware reported latency. Previously, it was a
hard-coded value. As a result of this change, the minimum buffer
size is now variable based on hardware latency. On Passion, this
brought out a subtle rounding error in the buffer size calculation
in SoundPool. This can cause AudioTrack creation to fail based on
the requested sample rate. This fix calculates the total buffer
size first, and then does rounding before dividing by the number
of buffers.
This currently assumes 44k stereo (won't crash on other formats, but won't give the correct results either), and links statically with libspeex to get FFT data, increasing the size of libmedia by about 45kb.
so that it can erase the data column for entries that are in the
folder containing the .nomedia file. This prevents us from
deleting (via a delete trigger) files when somebody adds a
.nomedia file after the fact.
There were 2 problems in SoundPool:
1 If not using the shared memory buffer mode, there was a problem when a sound channel was stolen. The new channel could sometimes not be added to the restart
list if the AudioTrack callback thread was stopped before the underrun callback was called.
The SoundChannel::play() method is modified so that SoundPool::done() is called immediately after stopping the channel. There is a possibility that done() is called a second time by the callback; in this case it will be added 2 times to the restart list but the second start request will be ignored as the first one will have reset the next chennel ID when processed.
2 There was a deadlock on SoundPool::mLock if SoundPool::stop() was called while a channel restart was pending:
SoundPool::stop() lock mLock -> SoundChannel::stop() -> SoundPool::done() -> SoundPool::addToRestartList() -> try to lock mLock == deadlock
A second mutex mRestartLock is added to protect the restart list mRestart. mLock is still used to protect mChannels list but mRestart is now used to
protect access to mRestart by restart thread and client thread.
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()
