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path: root/include/media/EffectApi.h
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* Add new audio mode for audio communications other than telelphony.Jean-Michel Trivi2010-11-161-3/+3
| | | | | | | | | | | | | | 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
* Audio effects: modified command() parameter types.Eric Laurent2010-07-281-3/+3
| | | | | | | 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
* Several improvements in audio effects volume control.Eric Laurent2010-07-151-1/+1
| | | | | | | | | | - Fixed crash when deleting an effect chained before an effect having volume control - Changed EFFECT_FLAG_VOLUME_CTRL to implicitely include EFFECT_FLAG_VOLUME_IND (not need to set both in effect descriptor). - Volume control changes from one effect to another if needed according to effect enable state - EFFECT_CMD_SET_VOLUME is only sent when their is an actual change in volume Change-Id: Ieebaf09157e2627366023569d95516646e03e26c
* Modifications in audio effect engine state management.Eric Laurent2010-07-131-0/+7
| | | | | | | | | | | - 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
* Various fixes and improvements in audio effects implementationEric Laurent2010-06-251-118/+348
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Issue 2667801: [Audio Effect Framework] AudioFlinger, AudioMixer AudioTrack ↵Eric Laurent2010-06-031-9/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Fix issue 2667796: [Audio Effect Framework] Effect factory and libraries.Eric Laurent2010-05-211-0/+555
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