Effect AIDL: add IEffect.reopen to update the effect instances data FMQ am:... (98d41708) · Commits · e / os / android_hardware_interfaces

audio/aidl/aidl_api/android.hardware.audio.effect/current/android/hardware/audio/effect/IEffect.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ interface IEffect {
		android.hardware.audio.effect.State getState();
		void setParameter(in android.hardware.audio.effect.Parameter param);
		android.hardware.audio.effect.Parameter getParameter(in android.hardware.audio.effect.Parameter.Id paramId);
		android.hardware.audio.effect.IEffect.OpenEffectReturn reopen();
		@FixedSize @VintfStability
		parcelable Status {
		int status;

audio/aidl/android/hardware/audio/effect/IEffect.aidl

+33 −4

Original line number	Diff line number	Diff line
		@@ -54,7 +54,16 @@ interface IEffect {
		}

		/**
		* Return data structure of IEffect.open() interface.
		* Return data structure of the IEffect.open() and IEffect.reopen() method.
		*
		* Contains Fast Message Queues (FMQs) for effect processing status and input/output data.
		* The status FMQ remains valid and unchanged after opening, while input/output data FMQs can be
		* modified with changes in input/output AudioConfig. If reallocation of data FMQ is necessary,
		* the effect instance must release the existing data FMQs to signal the need to the audio
		* framework.
		* When the audio framework encounters a valid status FMQ and invalid input/output data FMQs,
		* it must invoke the IEffect.reopen() method to request the effect instance to reallocate
		* the FMQ and return to the audio framework.
		*/
		@VintfStability
		parcelable OpenEffectReturn {
		@@ -97,7 +106,7 @@ interface IEffect {
		* client responsibility to make sure all parameter/buffer is correct if client wants to reopen
		* a closed instance.
		*
		* Effect instance close interface should always succeed unless:
		* Effect instance close method should always succeed unless:
		* 1. The effect instance is not in a proper state to be closed, for example it's still in
		* State::PROCESSING state.
		* 2. There is system/hardware related failure when close.
		@@ -154,8 +163,8 @@ interface IEffect {
		/**
		* Get a parameter from the effect instance with parameter ID.
		*
		* This interface must return the current parameter of the effect instance, if no parameter
		* has been set by client yet, the default value must be returned.
		* This method must return the current parameter of the effect instance, if no parameter has
		* been set by client yet, the default value must be returned.
		*
		* Must be available for the effect instance after open().
		*
		@@ -165,4 +174,24 @@ interface IEffect {
		* @throws EX_ILLEGAL_ARGUMENT if the effect instance receive unsupported parameter tag.
		*/
		Parameter getParameter(in Parameter.Id paramId);

		/**
		* Reopen the effect instance, keeping all previous parameters unchanged, and reallocate only
		* the Fast Message Queues (FMQs) allocated during the open time as needed.
		*
		* When the audio framework encounters a valid status FMQ and invalid data FMQ(s), it calls
		* this method to reopen the effect and request the latest data FMQ.
		* Upon receiving this call, if the effect instance's data FMQ(s) is invalid, it must reallocate
		* the necessary data FMQ(s) and return them to the audio framework. All previous parameters and
		* states keep unchanged.
		* Once the audio framework successfully completes the call, it must validate the returned FMQs,
		* deprecate all old FMQs, and exclusively use the FMQs returned from this method.
		*
		* @return The reallocated data FMQ and the original status FMQ.
		*
		* @throws EX_ILLEGAL_STATE if the effect instance is not in a proper state to reallocate FMQ.
		* This may occur if the effect instance has already been closed or if there is no need to
		* update any data FMQ.
		*/
		OpenEffectReturn reopen();
		}

audio/aidl/android/hardware/audio/effect/state.gv

+4 −2

Original line number	Diff line number	Diff line
		@@ -31,6 +31,8 @@ digraph effect_state_machine {
		IDLE -> INIT[label = "IEffect.close()"];

		INIT -> INIT[label = "IEffect.getState\nIEffect.getDescriptor"];
		IDLE -> IDLE[label = "IEffect.getParameter\nIEffect.setParameter\nIEffect.getDescriptor\nIEffect.command(RESET)"];
		PROCESSING -> PROCESSING[label = "IEffect.getParameter\nIEffect.setParameter\nIEffect.getDescriptor"];
		IDLE -> IDLE[label = "IEffect.getParameter\nIEffect.setParameter\nIEffect.getDescriptor\nIEffect.command(RESET)\nIEffect.reopen"];
		PROCESSING
		-> PROCESSING
		[label = "IEffect.getParameter\nIEffect.setParameter\nIEffect.getDescriptor\nIEffect.reopen"];
		}

audio/aidl/default/EffectImpl.cpp

+10 −0

Original line number	Diff line number	Diff line
		@@ -60,6 +60,16 @@ ndk::ScopedAStatus EffectImpl::open(const Parameter::Common& common,
		return ndk::ScopedAStatus::ok();
		}

		ndk::ScopedAStatus EffectImpl::reopen(OpenEffectReturn* ret) {
		RETURN_IF(mState == State::INIT, EX_ILLEGAL_STATE, "alreadyClosed");

		// TODO: b/302036943 add reopen implementation
		auto context = getContext();
		RETURN_IF(!context, EX_NULL_POINTER, "nullContext");
		context->dupeFmq(ret);
		return ndk::ScopedAStatus::ok();
		}

		ndk::ScopedAStatus EffectImpl::close() {
		RETURN_OK_IF(mState == State::INIT);
		RETURN_IF(mState == State::PROCESSING, EX_ILLEGAL_STATE, "closeAtProcessing");

audio/aidl/default/include/effect-impl/EffectImpl.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,7 @@ class EffectImpl : public BnEffect, public EffectThread {
		OpenEffectReturn* ret) override;
		virtual ndk::ScopedAStatus close() override;
		virtual ndk::ScopedAStatus command(CommandId id) override;
		virtual ndk::ScopedAStatus reopen(OpenEffectReturn* ret) override;

		virtual ndk::ScopedAStatus getState(State* state) override;
		virtual ndk::ScopedAStatus setParameter(const Parameter& param) override;