libvideoeditor/lvpp/VideoEditorPlayer.cpp - android_frameworks_av - Gitiles

 /*
  * Copyright (C) 2011 NXP Software
  * Copyright (C) 2011 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.
  */

 #define LOG_NDEBUG 1
 #define LOG_TAG "VideoEditorPlayer"
 #include <utils/Log.h>

 #include "VideoEditorPlayer.h"
 #include "PreviewPlayer.h"

 #include <media/Metadata.h>
 #include <media/stagefright/MediaExtractor.h>

 namespace android {

 VideoEditorPlayer::VideoEditorPlayer()
     : mPlayer(new PreviewPlayer) {

     LOGV("VideoEditorPlayer");
     mPlayer->setListener(this);
 }

 VideoEditorPlayer::~VideoEditorPlayer() {
     LOGV("~VideoEditorPlayer");

     reset();
     mVeAudioSink.clear();

     delete mPlayer;
     mPlayer = NULL;
 }

 status_t VideoEditorPlayer::initCheck() {
     LOGV("initCheck");
     return OK;
 }

 status_t VideoEditorPlayer::setDataSource(
         const char *url, const KeyedVector<String8, String8> *headers) {
     LOGI("setDataSource('%s')", url);

     mVeAudioSink = new VeAudioOutput();
     mPlayer->setAudioSink(mVeAudioSink);

     return mPlayer->setDataSource(url, headers);
 }

 //We donot use this in preview, dummy implimentation as this is pure virtual
 status_t VideoEditorPlayer::setDataSource(int fd, int64_t offset,
     int64_t length) {
     LOGE("setDataSource(%d, %lld, %lld) Not supported", fd, offset, length);
     return (!OK);
 }

 status_t VideoEditorPlayer::setVideoISurface(const sp<ISurface> &surface) {
     LOGV("setVideoISurface");

     mPlayer->setISurface(surface);
     return OK;
 }

 status_t VideoEditorPlayer::setVideoSurface(const sp<Surface> &surface) {
     LOGV("setVideoSurface");

     mPlayer->setSurface(surface);
     return OK;
 }

 status_t VideoEditorPlayer::prepare() {
     LOGV("prepare");
     return mPlayer->prepare();
 }

 status_t VideoEditorPlayer::prepareAsync() {
     return mPlayer->prepareAsync();
 }

 status_t VideoEditorPlayer::start() {
     LOGV("start");
     return mPlayer->play();
 }

 status_t VideoEditorPlayer::stop() {
     LOGV("stop");
     return pause();
 }

 status_t VideoEditorPlayer::pause() {
     LOGV("pause");
     return mPlayer->pause();
 }

 bool VideoEditorPlayer::isPlaying() {
     LOGV("isPlaying");
     return mPlayer->isPlaying();
 }

 status_t VideoEditorPlayer::seekTo(int msec) {
     LOGV("seekTo");
     status_t err = mPlayer->seekTo((int64_t)msec * 1000);
     return err;
 }

 status_t VideoEditorPlayer::getCurrentPosition(int *msec) {
     LOGV("getCurrentPosition");
     int64_t positionUs;
     status_t err = mPlayer->getPosition(&positionUs);

     if (err != OK) {
         return err;
     }

     *msec = (positionUs + 500) / 1000;
     return OK;
 }

 status_t VideoEditorPlayer::getDuration(int *msec) {
     LOGV("getDuration");

     int64_t durationUs;
     status_t err = mPlayer->getDuration(&durationUs);

     if (err != OK) {
         *msec = 0;
         return OK;
     }

     *msec = (durationUs + 500) / 1000;
     return OK;
 }

 status_t VideoEditorPlayer::reset() {
     LOGV("reset");
     mPlayer->reset();
     return OK;
 }

 status_t VideoEditorPlayer::setLooping(int loop) {
     LOGV("setLooping");
     return mPlayer->setLooping(loop);
 }

 player_type VideoEditorPlayer::playerType() {
     LOGV("playerType");
     return STAGEFRIGHT_PLAYER;
 }

 status_t VideoEditorPlayer::suspend() {
     LOGV("suspend");
     return mPlayer->suspend();
 }

 status_t VideoEditorPlayer::resume() {
     LOGV("resume");
     return mPlayer->resume();
 }

 status_t VideoEditorPlayer::invoke(const Parcel &request, Parcel *reply) {
     return INVALID_OPERATION;
 }

 void VideoEditorPlayer::setAudioSink(const sp<AudioSink> &audioSink) {
     MediaPlayerInterface::setAudioSink(audioSink);

     mPlayer->setAudioSink(audioSink);
 }

 status_t VideoEditorPlayer::getMetadata(
         const media::Metadata::Filter& ids, Parcel *records) {
     using media::Metadata;

     uint32_t flags = mPlayer->flags();

     Metadata metadata(records);

     metadata.appendBool(
             Metadata::kPauseAvailable,
             flags & MediaExtractor::CAN_PAUSE);

     metadata.appendBool(
             Metadata::kSeekBackwardAvailable,
             flags & MediaExtractor::CAN_SEEK_BACKWARD);

     metadata.appendBool(
             Metadata::kSeekForwardAvailable,
             flags & MediaExtractor::CAN_SEEK_FORWARD);

     metadata.appendBool(
             Metadata::kSeekAvailable,
             flags & MediaExtractor::CAN_SEEK);

     return OK;
 }

 status_t VideoEditorPlayer::loadEffectsSettings(
     M4VSS3GPP_EffectSettings* pEffectSettings, int nEffects) {
     LOGV("loadEffectsSettings");
     return mPlayer->loadEffectsSettings(pEffectSettings, nEffects);
 }

 status_t VideoEditorPlayer::loadAudioMixSettings(
     M4xVSS_AudioMixingSettings* pAudioMixSettings) {
     LOGV("VideoEditorPlayer: loadAudioMixSettings");
     return mPlayer->loadAudioMixSettings(pAudioMixSettings);
 }

 status_t VideoEditorPlayer::setAudioMixPCMFileHandle(
     M4OSA_Context pAudioMixPCMFileHandle) {

     LOGV("VideoEditorPlayer: loadAudioMixSettings");
     return mPlayer->setAudioMixPCMFileHandle(pAudioMixPCMFileHandle);
 }

 status_t VideoEditorPlayer::setAudioMixStoryBoardParam(
     M4OSA_UInt32 audioMixStoryBoardTS,
     M4OSA_UInt32 currentMediaBeginCutTime,
     M4OSA_UInt32 primaryTrackVolValue) {

     LOGV("VideoEditorPlayer: loadAudioMixSettings");
     return mPlayer->setAudioMixStoryBoardParam(audioMixStoryBoardTS,
      currentMediaBeginCutTime, primaryTrackVolValue);
 }

 status_t VideoEditorPlayer::setPlaybackBeginTime(uint32_t msec) {
     LOGV("setPlaybackBeginTime");
     return mPlayer->setPlaybackBeginTime(msec);
 }

 status_t VideoEditorPlayer::setPlaybackEndTime(uint32_t msec) {
     LOGV("setPlaybackEndTime");
     return mPlayer->setPlaybackEndTime(msec);
 }

 status_t VideoEditorPlayer::setStoryboardStartTime(uint32_t msec) {
     LOGV("setStoryboardStartTime");
     return mPlayer->setStoryboardStartTime(msec);
 }

 status_t VideoEditorPlayer::setProgressCallbackInterval(uint32_t cbInterval) {
     LOGV("setProgressCallbackInterval");
     return mPlayer->setProgressCallbackInterval(cbInterval);
 }

 status_t VideoEditorPlayer::setMediaRenderingMode(
     M4xVSS_MediaRendering mode,
     M4VIDEOEDITING_VideoFrameSize outputVideoSize) {

     LOGV("setMediaRenderingMode");
     return mPlayer->setMediaRenderingMode(mode, outputVideoSize);
 }

 status_t VideoEditorPlayer::resetJniCallbackTimeStamp() {
     LOGV("resetJniCallbackTimeStamp");
     return mPlayer->resetJniCallbackTimeStamp();
 }

 status_t VideoEditorPlayer::setImageClipProperties(
     uint32_t width, uint32_t height) {
     return mPlayer->setImageClipProperties(width, height);
 }

 status_t VideoEditorPlayer::readFirstVideoFrame() {
     return mPlayer->readFirstVideoFrame();
 }

 /* Implementation of AudioSink interface */
 #undef LOG_TAG
 #define LOG_TAG "VeAudioSink"

 int VideoEditorPlayer::VeAudioOutput::mMinBufferCount = 4;
 bool VideoEditorPlayer::VeAudioOutput::mIsOnEmulator = false;

 VideoEditorPlayer::VeAudioOutput::VeAudioOutput()
     : mCallback(NULL),
       mCallbackCookie(NULL) {
     mTrack = 0;
     mStreamType = AudioSystem::MUSIC;
     mLeftVolume = 1.0;
     mRightVolume = 1.0;
     mLatency = 0;
     mMsecsPerFrame = 0;
     mNumFramesWritten = 0;
     setMinBufferCount();
 }

 VideoEditorPlayer::VeAudioOutput::~VeAudioOutput() {
     close();
 }

 void VideoEditorPlayer::VeAudioOutput::setMinBufferCount() {

     mIsOnEmulator = false;
     mMinBufferCount = 4;
 }

 bool VideoEditorPlayer::VeAudioOutput::isOnEmulator() {

     setMinBufferCount();
     return mIsOnEmulator;
 }

 int VideoEditorPlayer::VeAudioOutput::getMinBufferCount() {

     setMinBufferCount();
     return mMinBufferCount;
 }

 ssize_t VideoEditorPlayer::VeAudioOutput::bufferSize() const {

     if (mTrack == 0) return NO_INIT;
     return mTrack->frameCount() * frameSize();
 }

 ssize_t VideoEditorPlayer::VeAudioOutput::frameCount() const {

     if (mTrack == 0) return NO_INIT;
     return mTrack->frameCount();
 }

 ssize_t VideoEditorPlayer::VeAudioOutput::channelCount() const
 {
     if (mTrack == 0) return NO_INIT;
     return mTrack->channelCount();
 }

 ssize_t VideoEditorPlayer::VeAudioOutput::frameSize() const
 {
     if (mTrack == 0) return NO_INIT;
     return mTrack->frameSize();
 }

 uint32_t VideoEditorPlayer::VeAudioOutput::latency () const
 {
     return mLatency;
 }

 float VideoEditorPlayer::VeAudioOutput::msecsPerFrame() const
 {
     return mMsecsPerFrame;
 }

 status_t VideoEditorPlayer::VeAudioOutput::getPosition(uint32_t *position) {

     if (mTrack == 0) return NO_INIT;
     return mTrack->getPosition(position);
 }

 status_t VideoEditorPlayer::VeAudioOutput::open(
         uint32_t sampleRate, int channelCount, int format, int bufferCount,
         AudioCallback cb, void *cookie) {

     mCallback = cb;
     mCallbackCookie = cookie;

     // Check argument "bufferCount" against the mininum buffer count
     if (bufferCount < mMinBufferCount) {
         LOGV("bufferCount (%d) is too small and increased to %d",
             bufferCount, mMinBufferCount);
         bufferCount = mMinBufferCount;

     }
     LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
     if (mTrack) close();
     int afSampleRate;
     int afFrameCount;
     int frameCount;

     if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) !=
      NO_ERROR) {
         return NO_INIT;
     }
     if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) !=
      NO_ERROR) {
         return NO_INIT;
     }

     frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;

     AudioTrack *t;
     if (mCallback != NULL) {
         t = new AudioTrack(
                 mStreamType,
                 sampleRate,
                 format,
                 (channelCount == 2) ?
                  AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO,
                 frameCount,
                 0 /* flags */,
                 CallbackWrapper,
                 this);
     } else {
         t = new AudioTrack(
                 mStreamType,
                 sampleRate,
                 format,
                 (channelCount == 2) ?
                  AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO,
                 frameCount);
     }

     if ((t == 0) || (t->initCheck() != NO_ERROR)) {
         LOGE("Unable to create audio track");
         delete t;
         return NO_INIT;
     }

     LOGV("setVolume");
     t->setVolume(mLeftVolume, mRightVolume);
     mMsecsPerFrame = 1.e3 / (float) sampleRate;
     mLatency = t->latency();
     mTrack = t;
     return NO_ERROR;
 }

 void VideoEditorPlayer::VeAudioOutput::start() {

     LOGV("start");
     if (mTrack) {
         mTrack->setVolume(mLeftVolume, mRightVolume);
         mTrack->start();
         mTrack->getPosition(&mNumFramesWritten);
     }
 }

 void VideoEditorPlayer::VeAudioOutput::snoopWrite(
     const void* buffer, size_t size) {
     // Visualization buffers not supported
     return;

 }

 ssize_t VideoEditorPlayer::VeAudioOutput::write(
      const void* buffer, size_t size) {

     LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");

     //LOGV("write(%p, %u)", buffer, size);
     if (mTrack) {
         snoopWrite(buffer, size);
         ssize_t ret = mTrack->write(buffer, size);
         mNumFramesWritten += ret / 4; // assume 16 bit stereo
         return ret;
     }
     return NO_INIT;
 }

 void VideoEditorPlayer::VeAudioOutput::stop() {

     LOGV("stop");
     if (mTrack) mTrack->stop();
 }

 void VideoEditorPlayer::VeAudioOutput::flush() {

     LOGV("flush");
     if (mTrack) mTrack->flush();
 }

 void VideoEditorPlayer::VeAudioOutput::pause() {

     LOGV("VeAudioOutput::pause");
     if (mTrack) mTrack->pause();
 }

 void VideoEditorPlayer::VeAudioOutput::close() {

     LOGV("close");
     delete mTrack;
     mTrack = 0;
 }

 void VideoEditorPlayer::VeAudioOutput::setVolume(float left, float right) {

     LOGV("setVolume(%f, %f)", left, right);
     mLeftVolume = left;
     mRightVolume = right;
     if (mTrack) {
         mTrack->setVolume(left, right);
     }
 }

 // static
 void VideoEditorPlayer::VeAudioOutput::CallbackWrapper(
         int event, void *cookie, void *info) {
     //LOGV("VeAudioOutput::callbackwrapper");
     if (event != AudioTrack::EVENT_MORE_DATA) {
         return;
     }

     VeAudioOutput *me = (VeAudioOutput *)cookie;
     AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;

     size_t actualSize = (*me->mCallback)(
             me, buffer->raw, buffer->size, me->mCallbackCookie);

     buffer->size = actualSize;

     if (actualSize > 0) {
         me->snoopWrite(buffer->raw, actualSize);
     }
 }

 status_t VideoEditorPlayer::VeAudioOutput::dump(int fd, const Vector<String16>& args) const
 {
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;

     result.append(" VeAudioOutput\n");
     snprintf(buffer, SIZE-1, "  stream type(%d), left - right volume(%f, %f)\n",
             mStreamType, mLeftVolume, mRightVolume);
     result.append(buffer);
     snprintf(buffer, SIZE-1, "  msec per frame(%f), latency (%d)\n",
             mMsecsPerFrame, mLatency);
     result.append(buffer);
     ::write(fd, result.string(), result.size());
     if (mTrack != 0) {
         mTrack->dump(fd, args);
     }
     return NO_ERROR;
 }

 int VideoEditorPlayer::VeAudioOutput::getSessionId() {

     return mSessionId;
 }

 }  // namespace android
	/*
	* Copyright (C) 2011 NXP Software
	* Copyright (C) 2011 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.
	*/

	#define LOG_NDEBUG 1
	#define LOG_TAG "VideoEditorPlayer"
	#include <utils/Log.h>

	#include "VideoEditorPlayer.h"
	#include "PreviewPlayer.h"

	#include <media/Metadata.h>
	#include <media/stagefright/MediaExtractor.h>

	namespace android {

	VideoEditorPlayer::VideoEditorPlayer()
	: mPlayer(new PreviewPlayer) {

	LOGV("VideoEditorPlayer");
	mPlayer->setListener(this);
	}

	VideoEditorPlayer::~VideoEditorPlayer() {
	LOGV("~VideoEditorPlayer");

	reset();
	mVeAudioSink.clear();

	delete mPlayer;
	mPlayer = NULL;
	}

	status_t VideoEditorPlayer::initCheck() {
	LOGV("initCheck");
	return OK;
	}

	status_t VideoEditorPlayer::setDataSource(
	const char url, const KeyedVector<String8, String8> headers) {
	LOGI("setDataSource('%s')", url);

	mVeAudioSink = new VeAudioOutput();
	mPlayer->setAudioSink(mVeAudioSink);

	return mPlayer->setDataSource(url, headers);
	}

	//We donot use this in preview, dummy implimentation as this is pure virtual
	status_t VideoEditorPlayer::setDataSource(int fd, int64_t offset,
	int64_t length) {
	LOGE("setDataSource(%d, %lld, %lld) Not supported", fd, offset, length);
	return (!OK);
	}

	status_t VideoEditorPlayer::setVideoISurface(const sp<ISurface> &surface) {
	LOGV("setVideoISurface");

	mPlayer->setISurface(surface);
	return OK;
	}

	status_t VideoEditorPlayer::setVideoSurface(const sp<Surface> &surface) {
	LOGV("setVideoSurface");

	mPlayer->setSurface(surface);
	return OK;
	}

	status_t VideoEditorPlayer::prepare() {
	LOGV("prepare");
	return mPlayer->prepare();
	}

	status_t VideoEditorPlayer::prepareAsync() {
	return mPlayer->prepareAsync();
	}

	status_t VideoEditorPlayer::start() {
	LOGV("start");
	return mPlayer->play();
	}

	status_t VideoEditorPlayer::stop() {
	LOGV("stop");
	return pause();
	}

	status_t VideoEditorPlayer::pause() {
	LOGV("pause");
	return mPlayer->pause();
	}

	bool VideoEditorPlayer::isPlaying() {
	LOGV("isPlaying");
	return mPlayer->isPlaying();
	}

	status_t VideoEditorPlayer::seekTo(int msec) {
	LOGV("seekTo");
	status_t err = mPlayer->seekTo((int64_t)msec * 1000);
	return err;
	}

	status_t VideoEditorPlayer::getCurrentPosition(int *msec) {
	LOGV("getCurrentPosition");
	int64_t positionUs;
	status_t err = mPlayer->getPosition(&positionUs);

	if (err != OK) {
	return err;
	}

	*msec = (positionUs + 500) / 1000;
	return OK;
	}

	status_t VideoEditorPlayer::getDuration(int *msec) {
	LOGV("getDuration");

	int64_t durationUs;
	status_t err = mPlayer->getDuration(&durationUs);

	if (err != OK) {
	*msec = 0;
	return OK;
	}

	*msec = (durationUs + 500) / 1000;
	return OK;
	}

	status_t VideoEditorPlayer::reset() {
	LOGV("reset");
	mPlayer->reset();
	return OK;
	}

	status_t VideoEditorPlayer::setLooping(int loop) {
	LOGV("setLooping");
	return mPlayer->setLooping(loop);
	}

	player_type VideoEditorPlayer::playerType() {
	LOGV("playerType");
	return STAGEFRIGHT_PLAYER;
	}

	status_t VideoEditorPlayer::suspend() {
	LOGV("suspend");
	return mPlayer->suspend();
	}

	status_t VideoEditorPlayer::resume() {
	LOGV("resume");
	return mPlayer->resume();
	}

	status_t VideoEditorPlayer::invoke(const Parcel &request, Parcel *reply) {
	return INVALID_OPERATION;
	}

	void VideoEditorPlayer::setAudioSink(const sp<AudioSink> &audioSink) {
	MediaPlayerInterface::setAudioSink(audioSink);

	mPlayer->setAudioSink(audioSink);
	}

	status_t VideoEditorPlayer::getMetadata(
	const media::Metadata::Filter& ids, Parcel *records) {
	using media::Metadata;

	uint32_t flags = mPlayer->flags();

	Metadata metadata(records);

	metadata.appendBool(
	Metadata::kPauseAvailable,
	flags & MediaExtractor::CAN_PAUSE);

	metadata.appendBool(
	Metadata::kSeekBackwardAvailable,
	flags & MediaExtractor::CAN_SEEK_BACKWARD);

	metadata.appendBool(
	Metadata::kSeekForwardAvailable,
	flags & MediaExtractor::CAN_SEEK_FORWARD);

	metadata.appendBool(
	Metadata::kSeekAvailable,
	flags & MediaExtractor::CAN_SEEK);

	return OK;
	}

	status_t VideoEditorPlayer::loadEffectsSettings(
	M4VSS3GPP_EffectSettings* pEffectSettings, int nEffects) {
	LOGV("loadEffectsSettings");
	return mPlayer->loadEffectsSettings(pEffectSettings, nEffects);
	}

	status_t VideoEditorPlayer::loadAudioMixSettings(
	M4xVSS_AudioMixingSettings* pAudioMixSettings) {
	LOGV("VideoEditorPlayer: loadAudioMixSettings");
	return mPlayer->loadAudioMixSettings(pAudioMixSettings);
	}

	status_t VideoEditorPlayer::setAudioMixPCMFileHandle(
	M4OSA_Context pAudioMixPCMFileHandle) {

	LOGV("VideoEditorPlayer: loadAudioMixSettings");
	return mPlayer->setAudioMixPCMFileHandle(pAudioMixPCMFileHandle);
	}

	status_t VideoEditorPlayer::setAudioMixStoryBoardParam(
	M4OSA_UInt32 audioMixStoryBoardTS,
	M4OSA_UInt32 currentMediaBeginCutTime,
	M4OSA_UInt32 primaryTrackVolValue) {

	LOGV("VideoEditorPlayer: loadAudioMixSettings");
	return mPlayer->setAudioMixStoryBoardParam(audioMixStoryBoardTS,
	currentMediaBeginCutTime, primaryTrackVolValue);
	}

	status_t VideoEditorPlayer::setPlaybackBeginTime(uint32_t msec) {
	LOGV("setPlaybackBeginTime");
	return mPlayer->setPlaybackBeginTime(msec);
	}

	status_t VideoEditorPlayer::setPlaybackEndTime(uint32_t msec) {
	LOGV("setPlaybackEndTime");
	return mPlayer->setPlaybackEndTime(msec);
	}

	status_t VideoEditorPlayer::setStoryboardStartTime(uint32_t msec) {
	LOGV("setStoryboardStartTime");
	return mPlayer->setStoryboardStartTime(msec);
	}

	status_t VideoEditorPlayer::setProgressCallbackInterval(uint32_t cbInterval) {
	LOGV("setProgressCallbackInterval");
	return mPlayer->setProgressCallbackInterval(cbInterval);
	}

	status_t VideoEditorPlayer::setMediaRenderingMode(
	M4xVSS_MediaRendering mode,
	M4VIDEOEDITING_VideoFrameSize outputVideoSize) {

	LOGV("setMediaRenderingMode");
	return mPlayer->setMediaRenderingMode(mode, outputVideoSize);
	}

	status_t VideoEditorPlayer::resetJniCallbackTimeStamp() {
	LOGV("resetJniCallbackTimeStamp");
	return mPlayer->resetJniCallbackTimeStamp();
	}

	status_t VideoEditorPlayer::setImageClipProperties(
	uint32_t width, uint32_t height) {
	return mPlayer->setImageClipProperties(width, height);
	}

	status_t VideoEditorPlayer::readFirstVideoFrame() {
	return mPlayer->readFirstVideoFrame();
	}

	/* Implementation of AudioSink interface */
	#undef LOG_TAG
	#define LOG_TAG "VeAudioSink"

	int VideoEditorPlayer::VeAudioOutput::mMinBufferCount = 4;
	bool VideoEditorPlayer::VeAudioOutput::mIsOnEmulator = false;

	VideoEditorPlayer::VeAudioOutput::VeAudioOutput()
	: mCallback(NULL),
	mCallbackCookie(NULL) {
	mTrack = 0;
	mStreamType = AudioSystem::MUSIC;
	mLeftVolume = 1.0;
	mRightVolume = 1.0;
	mLatency = 0;
	mMsecsPerFrame = 0;
	mNumFramesWritten = 0;
	setMinBufferCount();
	}

	VideoEditorPlayer::VeAudioOutput::~VeAudioOutput() {
	close();
	}

	void VideoEditorPlayer::VeAudioOutput::setMinBufferCount() {

	mIsOnEmulator = false;
	mMinBufferCount = 4;
	}

	bool VideoEditorPlayer::VeAudioOutput::isOnEmulator() {

	setMinBufferCount();
	return mIsOnEmulator;
	}

	int VideoEditorPlayer::VeAudioOutput::getMinBufferCount() {

	setMinBufferCount();
	return mMinBufferCount;
	}

	ssize_t VideoEditorPlayer::VeAudioOutput::bufferSize() const {

	if (mTrack == 0) return NO_INIT;
	return mTrack->frameCount() * frameSize();
	}

	ssize_t VideoEditorPlayer::VeAudioOutput::frameCount() const {

	if (mTrack == 0) return NO_INIT;
	return mTrack->frameCount();
	}

	ssize_t VideoEditorPlayer::VeAudioOutput::channelCount() const
	{
	if (mTrack == 0) return NO_INIT;
	return mTrack->channelCount();
	}

	ssize_t VideoEditorPlayer::VeAudioOutput::frameSize() const
	{
	if (mTrack == 0) return NO_INIT;
	return mTrack->frameSize();
	}

	uint32_t VideoEditorPlayer::VeAudioOutput::latency () const
	{
	return mLatency;
	}

	float VideoEditorPlayer::VeAudioOutput::msecsPerFrame() const
	{
	return mMsecsPerFrame;
	}

	status_t VideoEditorPlayer::VeAudioOutput::getPosition(uint32_t *position) {

	if (mTrack == 0) return NO_INIT;
	return mTrack->getPosition(position);
	}

	status_t VideoEditorPlayer::VeAudioOutput::open(
	uint32_t sampleRate, int channelCount, int format, int bufferCount,
	AudioCallback cb, void *cookie) {

	mCallback = cb;
	mCallbackCookie = cookie;

	// Check argument "bufferCount" against the mininum buffer count
	if (bufferCount < mMinBufferCount) {
	LOGV("bufferCount (%d) is too small and increased to %d",
	bufferCount, mMinBufferCount);
	bufferCount = mMinBufferCount;

	}
	LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
	if (mTrack) close();
	int afSampleRate;
	int afFrameCount;
	int frameCount;

	if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) !=
	NO_ERROR) {
	return NO_INIT;
	}
	if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) !=
	NO_ERROR) {
	return NO_INIT;
	}

	frameCount = (sampleRateafFrameCountbufferCount)/afSampleRate;

	AudioTrack *t;
	if (mCallback != NULL) {
	t = new AudioTrack(
	mStreamType,
	sampleRate,
	format,
	(channelCount == 2) ?
	AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO,
	frameCount,
	0 /* flags */,
	CallbackWrapper,
	this);
	} else {
	t = new AudioTrack(
	mStreamType,
	sampleRate,
	format,
	(channelCount == 2) ?
	AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO,
	frameCount);
	}

	if ((t == 0) \|\| (t->initCheck() != NO_ERROR)) {
	LOGE("Unable to create audio track");
	delete t;
	return NO_INIT;
	}

	LOGV("setVolume");
	t->setVolume(mLeftVolume, mRightVolume);
	mMsecsPerFrame = 1.e3 / (float) sampleRate;
	mLatency = t->latency();
	mTrack = t;
	return NO_ERROR;
	}

	void VideoEditorPlayer::VeAudioOutput::start() {

	LOGV("start");
	if (mTrack) {
	mTrack->setVolume(mLeftVolume, mRightVolume);
	mTrack->start();
	mTrack->getPosition(&mNumFramesWritten);
	}
	}

	void VideoEditorPlayer::VeAudioOutput::snoopWrite(
	const void* buffer, size_t size) {
	// Visualization buffers not supported
	return;

	}

	ssize_t VideoEditorPlayer::VeAudioOutput::write(
	const void* buffer, size_t size) {

	LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");

	//LOGV("write(%p, %u)", buffer, size);
	if (mTrack) {
	snoopWrite(buffer, size);
	ssize_t ret = mTrack->write(buffer, size);
	mNumFramesWritten += ret / 4; // assume 16 bit stereo
	return ret;
	}
	return NO_INIT;
	}

	void VideoEditorPlayer::VeAudioOutput::stop() {

	LOGV("stop");
	if (mTrack) mTrack->stop();
	}

	void VideoEditorPlayer::VeAudioOutput::flush() {

	LOGV("flush");
	if (mTrack) mTrack->flush();
	}

	void VideoEditorPlayer::VeAudioOutput::pause() {

	LOGV("VeAudioOutput::pause");
	if (mTrack) mTrack->pause();
	}

	void VideoEditorPlayer::VeAudioOutput::close() {

	LOGV("close");
	delete mTrack;
	mTrack = 0;
	}

	void VideoEditorPlayer::VeAudioOutput::setVolume(float left, float right) {

	LOGV("setVolume(%f, %f)", left, right);
	mLeftVolume = left;
	mRightVolume = right;
	if (mTrack) {
	mTrack->setVolume(left, right);
	}
	}

	// static
	void VideoEditorPlayer::VeAudioOutput::CallbackWrapper(
	int event, void cookie, void info) {
	//LOGV("VeAudioOutput::callbackwrapper");
	if (event != AudioTrack::EVENT_MORE_DATA) {
	return;
	}

	VeAudioOutput me = (VeAudioOutput )cookie;
	AudioTrack::Buffer buffer = (AudioTrack::Buffer )info;

	size_t actualSize = (*me->mCallback)(
	me, buffer->raw, buffer->size, me->mCallbackCookie);

	buffer->size = actualSize;

	if (actualSize > 0) {
	me->snoopWrite(buffer->raw, actualSize);
	}
	}

	status_t VideoEditorPlayer::VeAudioOutput::dump(int fd, const Vector<String16>& args) const
	{
	const size_t SIZE = 256;
	char buffer[SIZE];
	String8 result;

	result.append(" VeAudioOutput\n");
	snprintf(buffer, SIZE-1, " stream type(%d), left - right volume(%f, %f)\n",
	mStreamType, mLeftVolume, mRightVolume);
	result.append(buffer);
	snprintf(buffer, SIZE-1, " msec per frame(%f), latency (%d)\n",
	mMsecsPerFrame, mLatency);
	result.append(buffer);
	::write(fd, result.string(), result.size());
	if (mTrack != 0) {
	mTrack->dump(fd, args);
	}
	return NO_ERROR;
	}

	int VideoEditorPlayer::VeAudioOutput::getSessionId() {

	return mSessionId;
	}

	} // namespace android