- The linear cost associated with mSampleSizes.size() call causes the
CPU load to increase overtime as more and more audio/video samples
are recorded.
- Other Lists used in the MP4 file writer may have similar issues, but
the size() call is not made for each output audio/video output sample,
or the size of the list is bounded (not linear to the total number
of audio/video output samples). As for now, we can live with the small
cost (tested with 30 minutes long recording).
Change-Id: I23bd93ea4256cb0be0c1649760e39e6809eb4946
- Don't store timestamp for each output sample
- Don't store timestamp for statistical data collection if the collection of statistical data is not requested
TODO:
1. Reduce CPU load by elimnating the list cost associated with List.size() call.
Change-Id: I590bc17176596a65952c982574b82ee3b15b7d1c
- default interleave duration is set to 1 second
This can dramatically reduce the memory usage
by the MP4 file writer.
Change-Id: Ia3ff202cabfcd2d3f183065d31e4596617c2dded
The type of the cmd, cmdSize and *pReplySize parameters of the effect control interface command()
function have been modified from int to uint32_t. This is more consistent with their role.
Change-Id: I84d289fc262d6753747910f06f485597dfee6591
a single call.
Addional changes:
- Fixed simulator build
- Use effect interface UUIDs from OpenSL ES includes when available
- Added cleanspec rules to remove now obsolete test effect libraries
- Fixed bug in AudioEffect JNI setParameter function.
Change-Id: Ic25ddb135e2cec5a68c181d727321f5ac7a1ab6b
Remaining warnings in the code have been removed
Core components support seamless insertion in the audio stream at playtime (Enabling / Disabling the effect).
Change-Id: Icae7085305fad663faeb5a94cb673b41cec5a9f1
The status in the command reply field was not initialized by Effect_command() for
EFFECT_CMD_INIT causing unpredictable failures when initializing an effect.
Change-Id: I7dccb094c9244fad4ed9aea3062a395db295e082
This is 1st part of the work to allow audio and video resync if
we found out that audio and video are out of sync during authoring
- also fixed a problem in AACEncoder::read() where the buffer acquired
from the buffer group does not release when error out at
reading from source.
Change-Id: I8a2740097fcfdf85e6178869afeb9f3687a99118
Added methods to AudioTrack and MediaPlayer java classes to enable use of
auxiliary audio effects. The effect can be attached and detached by specifying its
ID and the send level controlled.
Change-Id: Ie74ff54a453096a742688476f612ce355543b6f3
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
Fixed the following problems in audio effect volume control in AudioFlinger:
- Make sure that the volumes returned by EffectChain::setVolume_l() are correct even is
no change is detected since last call
- Do not use isEnabled() to validate volume control but mState >= ACTIVE instead as the volume control
must be also active in STOPPING and STOPPED states.
Change-Id: Id62da3164fad500ee8a5efd6cd78c77e8fdcb541
This CL contains the first open sourceable version of the audio effect library from NXP software.
The effects implemented are:
- Bass boost
- Virtualizer (stereo widening)
- Equalizer
- Spectrum analyzer
Source file for the effect engines are located under libeffects/lvm/lib
The wrapper implementing the interface with the audio effect framework in under libeffects/lvm/wrapper
The code of other effect libraries has also been reorganized fo clarity:
- the effect factory is now under libeffects/factory
- the test equalizer and reverb effects are under libeffect/testlibs
- the visualizer is under libeffects/virtualizer
Change-Id: I8d91e2181f81b89f8fc0c1e1e6bf552c5809b2eb
moved surfaceflinger, audioflinger, cameraservice
all native services should now reside in this location.
Change-Id: Iee42b83dd2a94c3bf5107ab0895fe2dfcd5337a8
- Separate the updating of effect engine state from the process call in EffectModule so that the state
of all effects in the same effect chain is updated simultaneusly before all process functions are called.
- Added a mechanism for the effect engine to continue being called for processing after receiving the disable
commands untils it considers that the framework can stop calling the process function without causing
a glitch or loosing some effect tail.
- Updated test reverb and equalizer to support this new feature
Change-Id: Icb56ae2c84c076d4dbad6cf733b1a62f823febe7
- Since the software encoder assumes the input is YUV420 planar,
color conversion needs to be added when the input color format
does not meet the requirement. With this patch, I only added
a single color conversion from YUV420 semi planar to YUV420
planar. We can add more as we go.
Change-Id: If8640c9e5a4f73d385ae9bb2022e57f7f62b91b9
Defined the following JAVA classes on top of AudioEffect class to facilitate control
off built-in audio effects with APIs aligned with interfaces defined in OpenSL ES
specification:
- BastBoot.java
- Equalizer.java
- PresetReverb.java
- EnvironmentalReverb.java
- Virtualizer.java
Split reverb API header file in two, one for preset reverb and one for environmental reverb.
Some changes in test reverb to support preset reverb.
Change-Id: Ie0a5ba06002e63dfd6da22cace5568c1e0b76ea1
Because the video and audio encoders were stored in the same map, when we retrieve the name from the map, we can get a incorrect name.
Change-Id: I3857422bfe9173baae53e4f3d258b055f51ad9f2
The visualizer enables application to retrieve part of the currently playing audio for visualization purpose.
It is not an audio recording interface and only returns partial and low quality audio content as a waveform or
a frequency representation (FFT).
Removed temporary hack made in MediaPlayer for animated wall papers based on audio visualization (snoop() method.
This commit also includes a change in AudioEffect class:
- the enable()/disable() methods have been replaced bya more standard setEnabled() method.
- some fixes in javadoc
Change-Id: Id092a1340e9e38dae68646ade7be054e3a36980e
