Merge "add native IPlayer interface implementation" into oc-dev (a9034e0e) · Commits · e / os / android_frameworks_av

media/libaudioclient/Android.bp

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Original line number	Diff line number	Diff line
		@@ -22,6 +22,8 @@ cc_library_shared {
		"IEffect.cpp",
		"IEffectClient.cpp",
		"ToneGenerator.cpp",
		"PlayerBase.cpp",
		"TrackPlayerBase.cpp",
		],
		shared_libs: [
		"liblog",
		@@ -30,6 +32,7 @@ cc_library_shared {
		"libbinder",
		"libdl",
		"libaudioutils",
		"libaudiomanager",
		],
		export_shared_lib_headers: ["libbinder"],

media/libaudioclient/PlayerBase.cpp

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Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#include <binder/IServiceManager.h>
		#include <media/PlayerBase.h>

		#define max(a, b) ((a) > (b) ? (a) : (b))
		#define min(a, b) ((a) < (b) ? (a) : (b))

		namespace android {

		//--------------------------------------------------------------------------------------------------
		PlayerBase::PlayerBase() : BnPlayer(),
		mPanMultiplierL(1.0f), mPanMultiplierR(1.0f),
		mVolumeMultiplierL(1.0f), mVolumeMultiplierR(1.0f),
		mPIId(PLAYER_PIID_INVALID), mLastReportedEvent(PLAYER_STATE_UNKNOWN)
		{
		ALOGD("PlayerBase::PlayerBase()");
		// use checkService() to avoid blocking if audio service is not up yet
		sp<IBinder> binder = defaultServiceManager()->checkService(String16("audio"));
		if (binder == 0) {
		ALOGE("PlayerBase(): binding to audio service failed, service up?");
		} else {
		mAudioManager = interface_cast<IAudioManager>(binder);
		}
		}


		PlayerBase::~PlayerBase() {
		ALOGD("PlayerBase::~PlayerBase()");
		baseDestroy();
		}

		void PlayerBase::init(player_type_t playerType, audio_usage_t usage) {
		if (mAudioManager == 0) {
		ALOGE("AudioPlayer realize: no audio service, player will not be registered");
		} else {
		mPIId = mAudioManager->trackPlayer(playerType, usage, AUDIO_CONTENT_TYPE_UNKNOWN, this);
		}
		}

		void PlayerBase::baseDestroy() {
		serviceReleasePlayer();
		if (mAudioManager != 0) {
		mAudioManager.clear();
		}
		}

		//------------------------------------------------------------------------------
		void PlayerBase::servicePlayerEvent(player_state_t event) {
		if (mAudioManager != 0) {
		// only report state change
		Mutex::Autolock _l(mPlayerStateLock);
		if (event != mLastReportedEvent
		&& mPIId != PLAYER_PIID_INVALID) {
		mLastReportedEvent = event;
		mAudioManager->playerEvent(mPIId, event);
		}
		}
		}

		void PlayerBase::serviceReleasePlayer() {
		if (mAudioManager != 0
		&& mPIId != PLAYER_PIID_INVALID) {
		mAudioManager->releasePlayer(mPIId);
		}
		}

		//FIXME temporary method while some AudioTrack state is outside of this class
		void PlayerBase::reportEvent(player_state_t event) {
		servicePlayerEvent(event);
		}

		//------------------------------------------------------------------------------
		// Implementation of IPlayer
		void PlayerBase::start() {
		if (playerStart() == NO_ERROR) {
		ALOGD("PlayerBase::start() from IPlayer");
		servicePlayerEvent(PLAYER_STATE_STARTED);
		} else {
		ALOGD("PlayerBase::start() no AudioTrack to start from IPlayer");
		}
		}

		void PlayerBase::pause() {
		if (playerPause() == NO_ERROR) {
		ALOGD("PlayerBase::pause() from IPlayer");
		servicePlayerEvent(PLAYER_STATE_PAUSED);
		} else {
		ALOGD("PlayerBase::pause() no AudioTrack to pause from IPlayer");
		}
		}


		void PlayerBase::stop() {
		if (playerStop() == NO_ERROR) {
		ALOGD("PlayerBase::stop() from IPlayer");
		servicePlayerEvent(PLAYER_STATE_STOPPED);
		} else {
		ALOGD("PlayerBase::stop() no AudioTrack to stop from IPlayer");
		}
		}

		void PlayerBase::setVolume(float vol) {
		{
		Mutex::Autolock _l(mSettingsLock);
		mVolumeMultiplierL = vol;
		mVolumeMultiplierR = vol;
		}
		if (playerSetVolume() == NO_ERROR) {
		ALOGD("PlayerBase::setVolume() from IPlayer");
		} else {
		ALOGD("PlayerBase::setVolume() no AudioTrack for volume control from IPlayer");
		}
		}

		void PlayerBase::setPan(float pan) {
		{
		Mutex::Autolock _l(mSettingsLock);
		pan = min(max(-1.0f, pan), 1.0f);
		if (pan >= 0.0f) {
		mPanMultiplierL = 1.0f - pan;
		mPanMultiplierR = 1.0f;
		} else {
		mPanMultiplierL = 1.0f;
		mPanMultiplierR = 1.0f + pan;
		}
		}
		if (playerSetVolume() == NO_ERROR) {
		ALOGD("PlayerBase::setPan() from IPlayer");
		} else {
		ALOGD("PlayerBase::setPan() no AudioTrack for volume control from IPlayer");
		}
		}

		void PlayerBase::setStartDelayMs(int32_t delayMs __unused) {
		ALOGW("setStartDelay() is not supported");
		}

		void PlayerBase::applyVolumeShaper(
		const sp<VolumeShaper::Configuration>& configuration __unused,
		const sp<VolumeShaper::Operation>& operation __unused) {
		ALOGW("applyVolumeShaper() is not supported");
		}

		status_t PlayerBase::onTransact(
		uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
		{
		return BnPlayer::onTransact(code, data, reply, flags);
		}

		} // namespace android

media/libaudioclient/TrackPlayerBase.cpp

0 → 100644

+121 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#include <media/TrackPlayerBase.h>

		namespace android {

		//--------------------------------------------------------------------------------------------------
		TrackPlayerBase::TrackPlayerBase() : PlayerBase(),
		mPlayerVolumeL(1.0f), mPlayerVolumeR(1.0f)
		{
		ALOGD("TrackPlayerBase::TrackPlayerBase()");
		}


		TrackPlayerBase::~TrackPlayerBase() {
		ALOGD("TrackPlayerBase::~TrackPlayerBase()");
		doDestroy();
		}

		void TrackPlayerBase::init(AudioTrack* pat, player_type_t playerType, audio_usage_t usage) {
		PlayerBase::init(playerType, usage);
		mAudioTrack = pat;
		}

		void TrackPlayerBase::destroy() {
		doDestroy();
		baseDestroy();
		}

		void TrackPlayerBase::doDestroy() {
		if (mAudioTrack != 0) {
		mAudioTrack->stop();
		// Note that there may still be another reference in post-unlock phase of SetPlayState
		mAudioTrack.clear();
		}
		}

		void TrackPlayerBase::setPlayerVolume(float vl, float vr) {
		{
		Mutex::Autolock _l(mSettingsLock);
		mPlayerVolumeL = vl;
		mPlayerVolumeR = vr;
		}
		doSetVolume();
		}

		//------------------------------------------------------------------------------
		// Implementation of IPlayer
		status_t TrackPlayerBase::playerStart() {
		status_t status = NO_INIT;
		if (mAudioTrack != 0) {
		status = mAudioTrack->start();
		}
		return status;
		}

		status_t TrackPlayerBase::playerPause() {
		status_t status = NO_INIT;
		if (mAudioTrack != 0) {
		mAudioTrack->pause();
		status = NO_ERROR;
		}
		return status;
		}


		status_t TrackPlayerBase::playerStop() {
		status_t status = NO_INIT;
		if (mAudioTrack != 0) {
		mAudioTrack->stop();
		status = NO_ERROR;
		}
		return status;
		}

		status_t TrackPlayerBase::playerSetVolume() {
		return doSetVolume();
		}

		status_t TrackPlayerBase::doSetVolume() {
		status_t status = NO_INIT;
		if (mAudioTrack != 0) {
		float tl = mPlayerVolumeL * mPanMultiplierL * mVolumeMultiplierL;
		float tr = mPlayerVolumeR * mPanMultiplierR * mVolumeMultiplierR;
		mAudioTrack->setVolume(tl, tr);
		status = NO_ERROR;
		}
		return status;
		}


		void TrackPlayerBase::applyVolumeShaper(
		const sp<VolumeShaper::Configuration>& configuration,
		const sp<VolumeShaper::Operation>& operation) {
		if (mAudioTrack != 0) {
		ALOGD("TrackPlayerBase::applyVolumeShaper() from IPlayer");
		VolumeShaper::Status status = mAudioTrack->applyVolumeShaper(configuration, operation);
		if (status < 0) { // a non-negative value is the volume shaper id.
		ALOGE("TrackPlayerBase::applyVolumeShaper() failed with status %d", status);
		}
		} else {
		ALOGD("TrackPlayerBase::applyVolumeShaper()"
		" no AudioTrack for volume control from IPlayer");
		}
		}

		} // namespace android

media/libaudioclient/include/media/PlayerBase.h

0 → 100644

+89 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#ifndef __ANDROID_PLAYER_BASE_H__
		#define __ANDROID_PLAYER_BASE_H__

		#include <audiomanager/IPlayer.h>
		#include <audiomanager/AudioManager.h>
		#include <audiomanager/IAudioManager.h>


		namespace android {

		class PlayerBase : public BnPlayer
		{
		public:
		explicit PlayerBase();
		virtual ~PlayerBase();

		virtual void destroy() = 0;

		//IPlayer implementation
		virtual void start();
		virtual void pause();
		virtual void stop();
		virtual void setVolume(float vol);
		virtual void setPan(float pan);
		virtual void setStartDelayMs(int32_t delayMs);
		virtual void applyVolumeShaper(
		const sp<VolumeShaper::Configuration>& configuration,
		const sp<VolumeShaper::Operation>& operation) override;

		virtual status_t onTransact(
		uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);


		//FIXME temporary method while some player state is outside of this class
		void reportEvent(player_state_t event);

		protected:

		void init(player_type_t playerType, audio_usage_t usage);
		void baseDestroy();

		//IPlayer methods handlers for derived classes
		virtual status_t playerStart() { return NO_ERROR; }
		virtual status_t playerPause() { return NO_ERROR; }
		virtual status_t playerStop() { return NO_ERROR; }
		virtual status_t playerSetVolume() { return NO_ERROR; }

		// mutex for IPlayer volume and pan, and player-specific volume
		Mutex mSettingsLock;

		// volume multipliers coming from the IPlayer volume and pan controls
		float mPanMultiplierL, mPanMultiplierR;
		float mVolumeMultiplierL, mVolumeMultiplierR;

		private:
		// report events to AudioService
		void servicePlayerEvent(player_state_t event);
		void serviceReleasePlayer();

		// native interface to AudioService
		android::sp<android::IAudioManager> mAudioManager;

		// player interface ID, uniquely identifies the player in the system
		audio_unique_id_t mPIId;

		// Mutex for state reporting
		Mutex mPlayerStateLock;
		player_state_t mLastReportedEvent;
		};

		} // namespace android

		#endif /* __ANDROID_PLAYER_BASE_H__ */

media/libaudioclient/include/media/TrackPlayerBase.h

0 → 100644

+62 −0

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		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#ifndef __ANDROID_TRACK_PLAYER_BASE_H__
		#define __ANDROID_TRACK_PLAYER_BASE_H__

		#include <media/AudioTrack.h>
		#include <media/PlayerBase.h>

		namespace android {

		class TrackPlayerBase : public PlayerBase
		{
		public:
		explicit TrackPlayerBase();
		virtual ~TrackPlayerBase();

		void init(AudioTrack* pat, player_type_t playerType, audio_usage_t usage);
		virtual void destroy();

		//IPlayer implementation
		virtual void applyVolumeShaper(
		const sp<VolumeShaper::Configuration>& configuration,
		const sp<VolumeShaper::Operation>& operation);

		//FIXME move to protected field, so far made public to minimize changes to AudioTrack logic
		sp<AudioTrack> mAudioTrack;

		void setPlayerVolume(float vl, float vr);

		protected:

		//PlayerBase virtuals
		virtual status_t playerStart();
		virtual status_t playerPause();
		virtual status_t playerStop();
		virtual status_t playerSetVolume();

		private:
		void doDestroy();
		status_t doSetVolume();

		// volume coming from the player volume API
		float mPlayerVolumeL, mPlayerVolumeR;
		};

		} // namespace android

		#endif /* __ANDROID_TRACK_PLAYER_BASE_H__ */