NuPlayer2: fork the native code for MediaPlayer2

Forked from fec2f93fae282ad10bbb5e3fcce9f60eff2cfb48
NuPlayer2Decoder uses NdkMediaCodec, NdkMediaCrypto.
NuPlayer2Drm uses NdkMediaDrm.
No more IMediaHTTPService and IMediaHTTPConnection in NuPlayer2.
Test: compiles
Bug: 69805888

Change-Id: Ica3c168d40dcf114fb44e8688a9ede671e8d77ef
diff --git a/media/libmedia/nuplayer2/NuPlayer2.cpp b/media/libmedia/nuplayer2/NuPlayer2.cpp
new file mode 100644
index 0000000..aa0c8d1
--- /dev/null
+++ b/media/libmedia/nuplayer2/NuPlayer2.cpp
@@ -0,0 +1,3000 @@
+/*
+ * Copyright 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.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "NuPlayer2"
+
+#include <inttypes.h>
+
+#include <utils/Log.h>
+
+#include "NuPlayer2.h"
+
+#include "HTTPLiveSource.h"
+#include "NdkWrapper.h"
+#include "NuPlayer2CCDecoder.h"
+#include "NuPlayer2Decoder.h"
+#include "NuPlayer2DecoderBase.h"
+#include "NuPlayer2DecoderPassThrough.h"
+#include "NuPlayer2Driver.h"
+#include "NuPlayer2Renderer.h"
+#include "NuPlayer2Source.h"
+#include "RTSPSource.h"
+#include "StreamingSource.h"
+#include "GenericSource.h"
+#include "TextDescriptions.h"
+
+#include "ATSParser.h"
+
+#include <cutils/properties.h>
+
+#include <media/AudioParameter.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/AVSyncSettings.h>
+#include <media/MediaCodecBuffer.h>
+
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/avc_utils.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaClock.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MetaData.h>
+
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/Surface.h>
+
+
+#include "ESDS.h"
+#include <media/stagefright/Utils.h>
+
+namespace android {
+
+static status_t sendMetaDataToHal(sp<MediaPlayer2Base::AudioSink>& sink,
+                                  const sp<MetaData>& meta) {
+    int32_t sampleRate = 0;
+    int32_t bitRate = 0;
+    int32_t channelMask = 0;
+    int32_t delaySamples = 0;
+    int32_t paddingSamples = 0;
+
+    AudioParameter param = AudioParameter();
+
+    if (meta->findInt32(kKeySampleRate, &sampleRate)) {
+        param.addInt(String8(AUDIO_OFFLOAD_CODEC_SAMPLE_RATE), sampleRate);
+    }
+    if (meta->findInt32(kKeyChannelMask, &channelMask)) {
+        param.addInt(String8(AUDIO_OFFLOAD_CODEC_NUM_CHANNEL), channelMask);
+    }
+    if (meta->findInt32(kKeyBitRate, &bitRate)) {
+        param.addInt(String8(AUDIO_OFFLOAD_CODEC_AVG_BIT_RATE), bitRate);
+    }
+    if (meta->findInt32(kKeyEncoderDelay, &delaySamples)) {
+        param.addInt(String8(AUDIO_OFFLOAD_CODEC_DELAY_SAMPLES), delaySamples);
+    }
+    if (meta->findInt32(kKeyEncoderPadding, &paddingSamples)) {
+        param.addInt(String8(AUDIO_OFFLOAD_CODEC_PADDING_SAMPLES), paddingSamples);
+    }
+
+    ALOGV("sendMetaDataToHal: bitRate %d, sampleRate %d, chanMask %d,"
+          "delaySample %d, paddingSample %d", bitRate, sampleRate,
+          channelMask, delaySamples, paddingSamples);
+
+    sink->setParameters(param.toString());
+    return OK;
+}
+
+
+struct NuPlayer2::Action : public RefBase {
+    Action() {}
+
+    virtual void execute(NuPlayer2 *player) = 0;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(Action);
+};
+
+struct NuPlayer2::SeekAction : public Action {
+    explicit SeekAction(int64_t seekTimeUs, MediaPlayer2SeekMode mode)
+        : mSeekTimeUs(seekTimeUs),
+          mMode(mode) {
+    }
+
+    virtual void execute(NuPlayer2 *player) {
+        player->performSeek(mSeekTimeUs, mMode);
+    }
+
+private:
+    int64_t mSeekTimeUs;
+    MediaPlayer2SeekMode mMode;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
+};
+
+struct NuPlayer2::ResumeDecoderAction : public Action {
+    explicit ResumeDecoderAction(bool needNotify)
+        : mNeedNotify(needNotify) {
+    }
+
+    virtual void execute(NuPlayer2 *player) {
+        player->performResumeDecoders(mNeedNotify);
+    }
+
+private:
+    bool mNeedNotify;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ResumeDecoderAction);
+};
+
+struct NuPlayer2::SetSurfaceAction : public Action {
+    explicit SetSurfaceAction(const sp<Surface> &surface)
+        : mSurface(surface) {
+    }
+
+    virtual void execute(NuPlayer2 *player) {
+        player->performSetSurface(mSurface);
+    }
+
+private:
+    sp<Surface> mSurface;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SetSurfaceAction);
+};
+
+struct NuPlayer2::FlushDecoderAction : public Action {
+    FlushDecoderAction(FlushCommand audio, FlushCommand video)
+        : mAudio(audio),
+          mVideo(video) {
+    }
+
+    virtual void execute(NuPlayer2 *player) {
+        player->performDecoderFlush(mAudio, mVideo);
+    }
+
+private:
+    FlushCommand mAudio;
+    FlushCommand mVideo;
+
+    DISALLOW_EVIL_CONSTRUCTORS(FlushDecoderAction);
+};
+
+struct NuPlayer2::PostMessageAction : public Action {
+    explicit PostMessageAction(const sp<AMessage> &msg)
+        : mMessage(msg) {
+    }
+
+    virtual void execute(NuPlayer2 *) {
+        mMessage->post();
+    }
+
+private:
+    sp<AMessage> mMessage;
+
+    DISALLOW_EVIL_CONSTRUCTORS(PostMessageAction);
+};
+
+// Use this if there's no state necessary to save in order to execute
+// the action.
+struct NuPlayer2::SimpleAction : public Action {
+    typedef void (NuPlayer2::*ActionFunc)();
+
+    explicit SimpleAction(ActionFunc func)
+        : mFunc(func) {
+    }
+
+    virtual void execute(NuPlayer2 *player) {
+        (player->*mFunc)();
+    }
+
+private:
+    ActionFunc mFunc;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SimpleAction);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+NuPlayer2::NuPlayer2(pid_t pid, const sp<MediaClock> &mediaClock)
+    : mUIDValid(false),
+      mPID(pid),
+      mMediaClock(mediaClock),
+      mSourceFlags(0),
+      mOffloadAudio(false),
+      mAudioDecoderGeneration(0),
+      mVideoDecoderGeneration(0),
+      mRendererGeneration(0),
+      mLastStartedPlayingTimeNs(0),
+      mPreviousSeekTimeUs(0),
+      mAudioEOS(false),
+      mVideoEOS(false),
+      mScanSourcesPending(false),
+      mScanSourcesGeneration(0),
+      mPollDurationGeneration(0),
+      mTimedTextGeneration(0),
+      mFlushingAudio(NONE),
+      mFlushingVideo(NONE),
+      mResumePending(false),
+      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
+      mPlaybackSettings(AUDIO_PLAYBACK_RATE_DEFAULT),
+      mVideoFpsHint(-1.f),
+      mStarted(false),
+      mPrepared(false),
+      mResetting(false),
+      mSourceStarted(false),
+      mAudioDecoderError(false),
+      mVideoDecoderError(false),
+      mPaused(false),
+      mPausedByClient(true),
+      mPausedForBuffering(false),
+      mIsDrmProtected(false),
+      mDataSourceType(DATA_SOURCE_TYPE_NONE) {
+    CHECK(mediaClock != NULL);
+    clearFlushComplete();
+}
+
+NuPlayer2::~NuPlayer2() {
+}
+
+void NuPlayer2::setUID(uid_t uid) {
+    mUIDValid = true;
+    mUID = uid;
+}
+
+void NuPlayer2::setDriver(const wp<NuPlayer2Driver> &driver) {
+    mDriver = driver;
+}
+
+void NuPlayer2::setDataSourceAsync(const sp<IStreamSource> &source) {
+    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
+
+    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
+
+    msg->setObject("source", new StreamingSource(notify, source));
+    msg->post();
+    mDataSourceType = DATA_SOURCE_TYPE_STREAM;
+}
+
+static bool IsHTTPLiveURL(const char *url) {
+    if (!strncasecmp("http://", url, 7)
+            || !strncasecmp("https://", url, 8)
+            || !strncasecmp("file://", url, 7)) {
+        size_t len = strlen(url);
+        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
+            return true;
+        }
+
+        if (strstr(url,"m3u8")) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void NuPlayer2::setDataSourceAsync(
+        const sp<MediaHTTPService> &httpService,
+        const char *url,
+        const KeyedVector<String8, String8> *headers) {
+
+    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
+    size_t len = strlen(url);
+
+    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
+
+    sp<Source> source;
+    if (IsHTTPLiveURL(url)) {
+        source = new HTTPLiveSource(notify, httpService, url, headers);
+        ALOGV("setDataSourceAsync HTTPLiveSource %s", url);
+        mDataSourceType = DATA_SOURCE_TYPE_HTTP_LIVE;
+    } else if (!strncasecmp(url, "rtsp://", 7)) {
+        source = new RTSPSource(
+                notify, httpService, url, headers, mUIDValid, mUID);
+        ALOGV("setDataSourceAsync RTSPSource %s", url);
+        mDataSourceType = DATA_SOURCE_TYPE_RTSP;
+    } else if ((!strncasecmp(url, "http://", 7)
+                || !strncasecmp(url, "https://", 8))
+                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
+                    || strstr(url, ".sdp?"))) {
+        source = new RTSPSource(
+                notify, httpService, url, headers, mUIDValid, mUID, true);
+        ALOGV("setDataSourceAsync RTSPSource http/https/.sdp %s", url);
+        mDataSourceType = DATA_SOURCE_TYPE_RTSP;
+    } else {
+        ALOGV("setDataSourceAsync GenericSource %s", url);
+
+        sp<GenericSource> genericSource =
+                new GenericSource(notify, mUIDValid, mUID, mMediaClock);
+
+        status_t err = genericSource->setDataSource(httpService, url, headers);
+
+        if (err == OK) {
+            source = genericSource;
+        } else {
+            ALOGE("Failed to set data source!");
+        }
+
+        // regardless of success/failure
+        mDataSourceType = DATA_SOURCE_TYPE_GENERIC_URL;
+    }
+    msg->setObject("source", source);
+    msg->post();
+}
+
+void NuPlayer2::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
+    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
+
+    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
+
+    sp<GenericSource> source =
+            new GenericSource(notify, mUIDValid, mUID, mMediaClock);
+
+    ALOGV("setDataSourceAsync fd %d/%lld/%lld source: %p",
+            fd, (long long)offset, (long long)length, source.get());
+
+    status_t err = source->setDataSource(fd, offset, length);
+
+    if (err != OK) {
+        ALOGE("Failed to set data source!");
+        source = NULL;
+    }
+
+    msg->setObject("source", source);
+    msg->post();
+    mDataSourceType = DATA_SOURCE_TYPE_GENERIC_FD;
+}
+
+void NuPlayer2::setDataSourceAsync(const sp<DataSource> &dataSource) {
+    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
+    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
+
+    sp<GenericSource> source = new GenericSource(notify, mUIDValid, mUID, mMediaClock);
+    status_t err = source->setDataSource(dataSource);
+
+    if (err != OK) {
+        ALOGE("Failed to set data source!");
+        source = NULL;
+    }
+
+    msg->setObject("source", source);
+    msg->post();
+    mDataSourceType = DATA_SOURCE_TYPE_MEDIA;
+}
+
+status_t NuPlayer2::getBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    sp<AMessage> msg = new AMessage(kWhatGetBufferingSettings, this);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+        if (err == OK) {
+            readFromAMessage(response, buffering);
+        }
+    }
+    return err;
+}
+
+status_t NuPlayer2::setBufferingSettings(const BufferingSettings& buffering) {
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+    return err;
+}
+
+void NuPlayer2::prepareAsync() {
+    ALOGV("prepareAsync");
+
+    (new AMessage(kWhatPrepare, this))->post();
+}
+
+void NuPlayer2::setVideoSurfaceTextureAsync(
+        const sp<IGraphicBufferProducer> &bufferProducer) {
+    sp<AMessage> msg = new AMessage(kWhatSetVideoSurface, this);
+
+    if (bufferProducer == NULL) {
+        msg->setObject("surface", NULL);
+    } else {
+        msg->setObject("surface", new Surface(bufferProducer, true /* controlledByApp */));
+    }
+
+    msg->post();
+}
+
+void NuPlayer2::setAudioSink(const sp<MediaPlayer2Base::AudioSink> &sink) {
+    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, this);
+    msg->setObject("sink", sink);
+    msg->post();
+}
+
+void NuPlayer2::start() {
+    (new AMessage(kWhatStart, this))->post();
+}
+
+status_t NuPlayer2::setPlaybackSettings(const AudioPlaybackRate &rate) {
+    // do some cursory validation of the settings here. audio modes are
+    // only validated when set on the audiosink.
+     if ((rate.mSpeed != 0.f && rate.mSpeed < AUDIO_TIMESTRETCH_SPEED_MIN)
+            || rate.mSpeed > AUDIO_TIMESTRETCH_SPEED_MAX
+            || rate.mPitch < AUDIO_TIMESTRETCH_SPEED_MIN
+            || rate.mPitch > AUDIO_TIMESTRETCH_SPEED_MAX) {
+        return BAD_VALUE;
+    }
+    sp<AMessage> msg = new AMessage(kWhatConfigPlayback, this);
+    writeToAMessage(msg, rate);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+    return err;
+}
+
+status_t NuPlayer2::getPlaybackSettings(AudioPlaybackRate *rate /* nonnull */) {
+    sp<AMessage> msg = new AMessage(kWhatGetPlaybackSettings, this);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+        if (err == OK) {
+            readFromAMessage(response, rate);
+        }
+    }
+    return err;
+}
+
+status_t NuPlayer2::setSyncSettings(const AVSyncSettings &sync, float videoFpsHint) {
+    sp<AMessage> msg = new AMessage(kWhatConfigSync, this);
+    writeToAMessage(msg, sync, videoFpsHint);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+    return err;
+}
+
+status_t NuPlayer2::getSyncSettings(
+        AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */) {
+    sp<AMessage> msg = new AMessage(kWhatGetSyncSettings, this);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+        if (err == OK) {
+            readFromAMessage(response, sync, videoFps);
+        }
+    }
+    return err;
+}
+
+void NuPlayer2::pause() {
+    (new AMessage(kWhatPause, this))->post();
+}
+
+void NuPlayer2::resetAsync() {
+    sp<Source> source;
+    {
+        Mutex::Autolock autoLock(mSourceLock);
+        source = mSource;
+    }
+
+    if (source != NULL) {
+        // During a reset, the data source might be unresponsive already, we need to
+        // disconnect explicitly so that reads exit promptly.
+        // We can't queue the disconnect request to the looper, as it might be
+        // queued behind a stuck read and never gets processed.
+        // Doing a disconnect outside the looper to allows the pending reads to exit
+        // (either successfully or with error).
+        source->disconnect();
+    }
+
+    (new AMessage(kWhatReset, this))->post();
+}
+
+status_t NuPlayer2::notifyAt(int64_t mediaTimeUs) {
+    sp<AMessage> notify = new AMessage(kWhatNotifyTime, this);
+    notify->setInt64("timerUs", mediaTimeUs);
+    mMediaClock->addTimer(notify, mediaTimeUs);
+    return OK;
+}
+
+void NuPlayer2::seekToAsync(int64_t seekTimeUs, MediaPlayer2SeekMode mode, bool needNotify) {
+    sp<AMessage> msg = new AMessage(kWhatSeek, this);
+    msg->setInt64("seekTimeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
+    msg->setInt32("needNotify", needNotify);
+    msg->post();
+}
+
+
+void NuPlayer2::writeTrackInfo(
+        Parcel* reply, const sp<AMessage>& format) const {
+    if (format == NULL) {
+        ALOGE("NULL format");
+        return;
+    }
+    int32_t trackType;
+    if (!format->findInt32("type", &trackType)) {
+        ALOGE("no track type");
+        return;
+    }
+
+    AString mime;
+    if (!format->findString("mime", &mime)) {
+        // Java MediaPlayer only uses mimetype for subtitle and timedtext tracks.
+        // If we can't find the mimetype here it means that we wouldn't be needing
+        // the mimetype on the Java end. We still write a placeholder mime to keep the
+        // (de)serialization logic simple.
+        if (trackType == MEDIA_TRACK_TYPE_AUDIO) {
+            mime = "audio/";
+        } else if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
+            mime = "video/";
+        } else {
+            ALOGE("unknown track type: %d", trackType);
+            return;
+        }
+    }
+
+    AString lang;
+    if (!format->findString("language", &lang)) {
+        ALOGE("no language");
+        return;
+    }
+
+    reply->writeInt32(2); // write something non-zero
+    reply->writeInt32(trackType);
+    reply->writeString16(String16(mime.c_str()));
+    reply->writeString16(String16(lang.c_str()));
+
+    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
+        int32_t isAuto, isDefault, isForced;
+        CHECK(format->findInt32("auto", &isAuto));
+        CHECK(format->findInt32("default", &isDefault));
+        CHECK(format->findInt32("forced", &isForced));
+
+        reply->writeInt32(isAuto);
+        reply->writeInt32(isDefault);
+        reply->writeInt32(isForced);
+    }
+}
+
+void NuPlayer2::onMessageReceived(const sp<AMessage> &msg) {
+    switch (msg->what()) {
+        case kWhatSetDataSource:
+        {
+            ALOGV("kWhatSetDataSource");
+
+            CHECK(mSource == NULL);
+
+            status_t err = OK;
+            sp<RefBase> obj;
+            CHECK(msg->findObject("source", &obj));
+            if (obj != NULL) {
+                Mutex::Autolock autoLock(mSourceLock);
+                mSource = static_cast<Source *>(obj.get());
+            } else {
+                err = UNKNOWN_ERROR;
+            }
+
+            CHECK(mDriver != NULL);
+            sp<NuPlayer2Driver> driver = mDriver.promote();
+            if (driver != NULL) {
+                driver->notifySetDataSourceCompleted(err);
+            }
+            break;
+        }
+
+        case kWhatGetBufferingSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatGetBufferingSettings");
+            BufferingSettings buffering;
+            status_t err = OK;
+            if (mSource != NULL) {
+                err = mSource->getBufferingSettings(&buffering);
+            } else {
+                err = INVALID_OPERATION;
+            }
+            sp<AMessage> response = new AMessage;
+            if (err == OK) {
+                writeToAMessage(response, buffering);
+            }
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatSetBufferingSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatSetBufferingSettings");
+            BufferingSettings buffering;
+            readFromAMessage(msg, &buffering);
+            status_t err = OK;
+            if (mSource != NULL) {
+                err = mSource->setBufferingSettings(buffering);
+            } else {
+                err = INVALID_OPERATION;
+            }
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatPrepare:
+        {
+            ALOGV("onMessageReceived kWhatPrepare");
+
+            mSource->prepareAsync();
+            break;
+        }
+
+        case kWhatGetTrackInfo:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            Parcel* reply;
+            CHECK(msg->findPointer("reply", (void**)&reply));
+
+            size_t inbandTracks = 0;
+            if (mSource != NULL) {
+                inbandTracks = mSource->getTrackCount();
+            }
+
+            size_t ccTracks = 0;
+            if (mCCDecoder != NULL) {
+                ccTracks = mCCDecoder->getTrackCount();
+            }
+
+            // total track count
+            reply->writeInt32(inbandTracks + ccTracks);
+
+            // write inband tracks
+            for (size_t i = 0; i < inbandTracks; ++i) {
+                writeTrackInfo(reply, mSource->getTrackInfo(i));
+            }
+
+            // write CC track
+            for (size_t i = 0; i < ccTracks; ++i) {
+                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
+            }
+
+            sp<AMessage> response = new AMessage;
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatGetSelectedTrack:
+        {
+            status_t err = INVALID_OPERATION;
+            if (mSource != NULL) {
+                err = OK;
+
+                int32_t type32;
+                CHECK(msg->findInt32("type", (int32_t*)&type32));
+                media_track_type type = (media_track_type)type32;
+                ssize_t selectedTrack = mSource->getSelectedTrack(type);
+
+                Parcel* reply;
+                CHECK(msg->findPointer("reply", (void**)&reply));
+                reply->writeInt32(selectedTrack);
+            }
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatSelectTrack:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            size_t trackIndex;
+            int32_t select;
+            int64_t timeUs;
+            CHECK(msg->findSize("trackIndex", &trackIndex));
+            CHECK(msg->findInt32("select", &select));
+            CHECK(msg->findInt64("timeUs", &timeUs));
+
+            status_t err = INVALID_OPERATION;
+
+            size_t inbandTracks = 0;
+            if (mSource != NULL) {
+                inbandTracks = mSource->getTrackCount();
+            }
+            size_t ccTracks = 0;
+            if (mCCDecoder != NULL) {
+                ccTracks = mCCDecoder->getTrackCount();
+            }
+
+            if (trackIndex < inbandTracks) {
+                err = mSource->selectTrack(trackIndex, select, timeUs);
+
+                if (!select && err == OK) {
+                    int32_t type;
+                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
+                    if (info != NULL
+                            && info->findInt32("type", &type)
+                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
+                        ++mTimedTextGeneration;
+                    }
+                }
+            } else {
+                trackIndex -= inbandTracks;
+
+                if (trackIndex < ccTracks) {
+                    err = mCCDecoder->selectTrack(trackIndex, select);
+                }
+            }
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatPollDuration:
+        {
+            int32_t generation;
+            CHECK(msg->findInt32("generation", &generation));
+
+            if (generation != mPollDurationGeneration) {
+                // stale
+                break;
+            }
+
+            int64_t durationUs;
+            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
+                sp<NuPlayer2Driver> driver = mDriver.promote();
+                if (driver != NULL) {
+                    driver->notifyDuration(durationUs);
+                }
+            }
+
+            msg->post(1000000ll);  // poll again in a second.
+            break;
+        }
+
+        case kWhatSetVideoSurface:
+        {
+
+            sp<RefBase> obj;
+            CHECK(msg->findObject("surface", &obj));
+            sp<Surface> surface = static_cast<Surface *>(obj.get());
+
+            ALOGD("onSetVideoSurface(%p, %s video decoder)",
+                    surface.get(),
+                    (mSource != NULL && mStarted && mSource->getFormat(false /* audio */) != NULL
+                            && mVideoDecoder != NULL) ? "have" : "no");
+
+            // Need to check mStarted before calling mSource->getFormat because NuPlayer2 might
+            // be in preparing state and it could take long time.
+            // When mStarted is true, mSource must have been set.
+            if (mSource == NULL || !mStarted || mSource->getFormat(false /* audio */) == NULL
+                    // NOTE: mVideoDecoder's mSurface is always non-null
+                    || (mVideoDecoder != NULL && mVideoDecoder->setVideoSurface(surface) == OK)) {
+                performSetSurface(surface);
+                break;
+            }
+
+            mDeferredActions.push_back(
+                    new FlushDecoderAction(
+                            (obj != NULL ? FLUSH_CMD_FLUSH : FLUSH_CMD_NONE) /* audio */,
+                                           FLUSH_CMD_SHUTDOWN /* video */));
+
+            mDeferredActions.push_back(new SetSurfaceAction(surface));
+
+            if (obj != NULL) {
+                if (mStarted) {
+                    // Issue a seek to refresh the video screen only if started otherwise
+                    // the extractor may not yet be started and will assert.
+                    // If the video decoder is not set (perhaps audio only in this case)
+                    // do not perform a seek as it is not needed.
+                    int64_t currentPositionUs = 0;
+                    if (getCurrentPosition(&currentPositionUs) == OK) {
+                        mDeferredActions.push_back(
+                                new SeekAction(currentPositionUs,
+                                        MediaPlayer2SeekMode::SEEK_PREVIOUS_SYNC /* mode */));
+                    }
+                }
+
+                // If there is a new surface texture, instantiate decoders
+                // again if possible.
+                mDeferredActions.push_back(
+                        new SimpleAction(&NuPlayer2::performScanSources));
+
+                // After a flush without shutdown, decoder is paused.
+                // Don't resume it until source seek is done, otherwise it could
+                // start pulling stale data too soon.
+                mDeferredActions.push_back(
+                        new ResumeDecoderAction(false /* needNotify */));
+            }
+
+            processDeferredActions();
+            break;
+        }
+
+        case kWhatSetAudioSink:
+        {
+            ALOGV("kWhatSetAudioSink");
+
+            sp<RefBase> obj;
+            CHECK(msg->findObject("sink", &obj));
+
+            mAudioSink = static_cast<MediaPlayer2Base::AudioSink *>(obj.get());
+            break;
+        }
+
+        case kWhatStart:
+        {
+            ALOGV("kWhatStart");
+            if (mStarted) {
+                // do not resume yet if the source is still buffering
+                if (!mPausedForBuffering) {
+                    onResume();
+                }
+            } else {
+                onStart();
+            }
+            mPausedByClient = false;
+            break;
+        }
+
+        case kWhatConfigPlayback:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            AudioPlaybackRate rate /* sanitized */;
+            readFromAMessage(msg, &rate);
+            status_t err = OK;
+            if (mRenderer != NULL) {
+                // AudioSink allows only 1.f and 0.f for offload mode.
+                // For other speed, switch to non-offload mode.
+                if (mOffloadAudio && ((rate.mSpeed != 0.f && rate.mSpeed != 1.f)
+                        || rate.mPitch != 1.f)) {
+                    int64_t currentPositionUs;
+                    if (getCurrentPosition(&currentPositionUs) != OK) {
+                        currentPositionUs = mPreviousSeekTimeUs;
+                    }
+
+                    // Set mPlaybackSettings so that the new audio decoder can
+                    // be created correctly.
+                    mPlaybackSettings = rate;
+                    if (!mPaused) {
+                        mRenderer->pause();
+                    }
+                    restartAudio(
+                            currentPositionUs, true /* forceNonOffload */,
+                            true /* needsToCreateAudioDecoder */);
+                    if (!mPaused) {
+                        mRenderer->resume();
+                    }
+                }
+
+                err = mRenderer->setPlaybackSettings(rate);
+            }
+            if (err == OK) {
+                if (rate.mSpeed == 0.f) {
+                    onPause();
+                    mPausedByClient = true;
+                    // save all other settings (using non-paused speed)
+                    // so we can restore them on start
+                    AudioPlaybackRate newRate = rate;
+                    newRate.mSpeed = mPlaybackSettings.mSpeed;
+                    mPlaybackSettings = newRate;
+                } else { /* rate.mSpeed != 0.f */
+                    mPlaybackSettings = rate;
+                    if (mStarted) {
+                        // do not resume yet if the source is still buffering
+                        if (!mPausedForBuffering) {
+                            onResume();
+                        }
+                    } else if (mPrepared) {
+                        onStart();
+                    }
+
+                    mPausedByClient = false;
+                }
+            }
+
+            if (mVideoDecoder != NULL) {
+                sp<AMessage> params = new AMessage();
+                params->setFloat("playback-speed", mPlaybackSettings.mSpeed);
+                mVideoDecoder->setParameters(params);
+            }
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatGetPlaybackSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            AudioPlaybackRate rate = mPlaybackSettings;
+            status_t err = OK;
+            if (mRenderer != NULL) {
+                err = mRenderer->getPlaybackSettings(&rate);
+            }
+            if (err == OK) {
+                // get playback settings used by renderer, as it may be
+                // slightly off due to audiosink not taking small changes.
+                mPlaybackSettings = rate;
+                if (mPaused) {
+                    rate.mSpeed = 0.f;
+                }
+            }
+            sp<AMessage> response = new AMessage;
+            if (err == OK) {
+                writeToAMessage(response, rate);
+            }
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatConfigSync:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatConfigSync");
+            AVSyncSettings sync;
+            float videoFpsHint;
+            readFromAMessage(msg, &sync, &videoFpsHint);
+            status_t err = OK;
+            if (mRenderer != NULL) {
+                err = mRenderer->setSyncSettings(sync, videoFpsHint);
+            }
+            if (err == OK) {
+                mSyncSettings = sync;
+                mVideoFpsHint = videoFpsHint;
+            }
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatGetSyncSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            AVSyncSettings sync = mSyncSettings;
+            float videoFps = mVideoFpsHint;
+            status_t err = OK;
+            if (mRenderer != NULL) {
+                err = mRenderer->getSyncSettings(&sync, &videoFps);
+                if (err == OK) {
+                    mSyncSettings = sync;
+                    mVideoFpsHint = videoFps;
+                }
+            }
+            sp<AMessage> response = new AMessage;
+            if (err == OK) {
+                writeToAMessage(response, sync, videoFps);
+            }
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatScanSources:
+        {
+            int32_t generation;
+            CHECK(msg->findInt32("generation", &generation));
+            if (generation != mScanSourcesGeneration) {
+                // Drop obsolete msg.
+                break;
+            }
+
+            mScanSourcesPending = false;
+
+            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
+                 mAudioDecoder != NULL, mVideoDecoder != NULL);
+
+            bool mHadAnySourcesBefore =
+                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
+            bool rescan = false;
+
+            // initialize video before audio because successful initialization of
+            // video may change deep buffer mode of audio.
+            if (mSurface != NULL) {
+                if (instantiateDecoder(false, &mVideoDecoder) == -EWOULDBLOCK) {
+                    rescan = true;
+                }
+            }
+
+            // Don't try to re-open audio sink if there's an existing decoder.
+            if (mAudioSink != NULL && mAudioDecoder == NULL) {
+                if (instantiateDecoder(true, &mAudioDecoder) == -EWOULDBLOCK) {
+                    rescan = true;
+                }
+            }
+
+            if (!mHadAnySourcesBefore
+                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
+                // This is the first time we've found anything playable.
+
+                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
+                    schedulePollDuration();
+                }
+            }
+
+            status_t err;
+            if ((err = mSource->feedMoreTSData()) != OK) {
+                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
+                    // We're not currently decoding anything (no audio or
+                    // video tracks found) and we just ran out of input data.
+
+                    if (err == ERROR_END_OF_STREAM) {
+                        notifyListener(MEDIA2_PLAYBACK_COMPLETE, 0, 0);
+                    } else {
+                        notifyListener(MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, err);
+                    }
+                }
+                break;
+            }
+
+            if (rescan) {
+                msg->post(100000ll);
+                mScanSourcesPending = true;
+            }
+            break;
+        }
+
+        case kWhatVideoNotify:
+        case kWhatAudioNotify:
+        {
+            bool audio = msg->what() == kWhatAudioNotify;
+
+            int32_t currentDecoderGeneration =
+                (audio? mAudioDecoderGeneration : mVideoDecoderGeneration);
+            int32_t requesterGeneration = currentDecoderGeneration - 1;
+            CHECK(msg->findInt32("generation", &requesterGeneration));
+
+            if (requesterGeneration != currentDecoderGeneration) {
+                ALOGV("got message from old %s decoder, generation(%d:%d)",
+                        audio ? "audio" : "video", requesterGeneration,
+                        currentDecoderGeneration);
+                sp<AMessage> reply;
+                if (!(msg->findMessage("reply", &reply))) {
+                    return;
+                }
+
+                reply->setInt32("err", INFO_DISCONTINUITY);
+                reply->post();
+                return;
+            }
+
+            int32_t what;
+            CHECK(msg->findInt32("what", &what));
+
+            if (what == DecoderBase::kWhatInputDiscontinuity) {
+                int32_t formatChange;
+                CHECK(msg->findInt32("formatChange", &formatChange));
+
+                ALOGV("%s discontinuity: formatChange %d",
+                        audio ? "audio" : "video", formatChange);
+
+                if (formatChange) {
+                    mDeferredActions.push_back(
+                            new FlushDecoderAction(
+                                audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
+                                audio ? FLUSH_CMD_NONE : FLUSH_CMD_SHUTDOWN));
+                }
+
+                mDeferredActions.push_back(
+                        new SimpleAction(
+                                &NuPlayer2::performScanSources));
+
+                processDeferredActions();
+            } else if (what == DecoderBase::kWhatEOS) {
+                int32_t err;
+                CHECK(msg->findInt32("err", &err));
+
+                if (err == ERROR_END_OF_STREAM) {
+                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
+                } else {
+                    ALOGV("got %s decoder EOS w/ error %d",
+                         audio ? "audio" : "video",
+                         err);
+                }
+
+                mRenderer->queueEOS(audio, err);
+            } else if (what == DecoderBase::kWhatFlushCompleted) {
+                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
+
+                handleFlushComplete(audio, true /* isDecoder */);
+                finishFlushIfPossible();
+            } else if (what == DecoderBase::kWhatVideoSizeChanged) {
+                sp<AMessage> format;
+                CHECK(msg->findMessage("format", &format));
+
+                sp<AMessage> inputFormat =
+                        mSource->getFormat(false /* audio */);
+
+                setVideoScalingMode(mVideoScalingMode);
+                updateVideoSize(inputFormat, format);
+            } else if (what == DecoderBase::kWhatShutdownCompleted) {
+                ALOGV("%s shutdown completed", audio ? "audio" : "video");
+                if (audio) {
+                    mAudioDecoder.clear();
+                    mAudioDecoderError = false;
+                    ++mAudioDecoderGeneration;
+
+                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
+                    mFlushingAudio = SHUT_DOWN;
+                } else {
+                    mVideoDecoder.clear();
+                    mVideoDecoderError = false;
+                    ++mVideoDecoderGeneration;
+
+                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
+                    mFlushingVideo = SHUT_DOWN;
+                }
+
+                finishFlushIfPossible();
+            } else if (what == DecoderBase::kWhatResumeCompleted) {
+                finishResume();
+            } else if (what == DecoderBase::kWhatError) {
+                status_t err;
+                if (!msg->findInt32("err", &err) || err == OK) {
+                    err = UNKNOWN_ERROR;
+                }
+
+                // Decoder errors can be due to Source (e.g. from streaming),
+                // or from decoding corrupted bitstreams, or from other decoder
+                // MediaCodec operations (e.g. from an ongoing reset or seek).
+                // They may also be due to openAudioSink failure at
+                // decoder start or after a format change.
+                //
+                // We try to gracefully shut down the affected decoder if possible,
+                // rather than trying to force the shutdown with something
+                // similar to performReset(). This method can lead to a hang
+                // if MediaCodec functions block after an error, but they should
+                // typically return INVALID_OPERATION instead of blocking.
+
+                FlushStatus *flushing = audio ? &mFlushingAudio : &mFlushingVideo;
+                ALOGE("received error(%#x) from %s decoder, flushing(%d), now shutting down",
+                        err, audio ? "audio" : "video", *flushing);
+
+                switch (*flushing) {
+                    case NONE:
+                        mDeferredActions.push_back(
+                                new FlushDecoderAction(
+                                    audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
+                                    audio ? FLUSH_CMD_NONE : FLUSH_CMD_SHUTDOWN));
+                        processDeferredActions();
+                        break;
+                    case FLUSHING_DECODER:
+                        *flushing = FLUSHING_DECODER_SHUTDOWN; // initiate shutdown after flush.
+                        break; // Wait for flush to complete.
+                    case FLUSHING_DECODER_SHUTDOWN:
+                        break; // Wait for flush to complete.
+                    case SHUTTING_DOWN_DECODER:
+                        break; // Wait for shutdown to complete.
+                    case FLUSHED:
+                        getDecoder(audio)->initiateShutdown(); // In the middle of a seek.
+                        *flushing = SHUTTING_DOWN_DECODER;     // Shut down.
+                        break;
+                    case SHUT_DOWN:
+                        finishFlushIfPossible();  // Should not occur.
+                        break;                    // Finish anyways.
+                }
+                if (mSource != nullptr) {
+                    if (audio) {
+                        if (mVideoDecoderError || mSource->getFormat(false /* audio */) == NULL
+                                || mSurface == NULL || mVideoDecoder == NULL) {
+                            // When both audio and video have error, or this stream has only audio
+                            // which has error, notify client of error.
+                            notifyListener(MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, err);
+                        } else {
+                            // Only audio track has error. Video track could be still good to play.
+                            notifyListener(MEDIA2_INFO, MEDIA2_INFO_PLAY_AUDIO_ERROR, err);
+                        }
+                        mAudioDecoderError = true;
+                    } else {
+                        if (mAudioDecoderError || mSource->getFormat(true /* audio */) == NULL
+                                || mAudioSink == NULL || mAudioDecoder == NULL) {
+                            // When both audio and video have error, or this stream has only video
+                            // which has error, notify client of error.
+                            notifyListener(MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, err);
+                        } else {
+                            // Only video track has error. Audio track could be still good to play.
+                            notifyListener(MEDIA2_INFO, MEDIA2_INFO_PLAY_VIDEO_ERROR, err);
+                        }
+                        mVideoDecoderError = true;
+                    }
+                }
+            } else {
+                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
+                      what,
+                      what >> 24,
+                      (what >> 16) & 0xff,
+                      (what >> 8) & 0xff,
+                      what & 0xff);
+            }
+
+            break;
+        }
+
+        case kWhatRendererNotify:
+        {
+            int32_t requesterGeneration = mRendererGeneration - 1;
+            CHECK(msg->findInt32("generation", &requesterGeneration));
+            if (requesterGeneration != mRendererGeneration) {
+                ALOGV("got message from old renderer, generation(%d:%d)",
+                        requesterGeneration, mRendererGeneration);
+                return;
+            }
+
+            int32_t what;
+            CHECK(msg->findInt32("what", &what));
+
+            if (what == Renderer::kWhatEOS) {
+                int32_t audio;
+                CHECK(msg->findInt32("audio", &audio));
+
+                int32_t finalResult;
+                CHECK(msg->findInt32("finalResult", &finalResult));
+
+                if (audio) {
+                    mAudioEOS = true;
+                } else {
+                    mVideoEOS = true;
+                }
+
+                if (finalResult == ERROR_END_OF_STREAM) {
+                    ALOGV("reached %s EOS", audio ? "audio" : "video");
+                } else {
+                    ALOGE("%s track encountered an error (%d)",
+                         audio ? "audio" : "video", finalResult);
+
+                    notifyListener(
+                            MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, finalResult);
+                }
+
+                if ((mAudioEOS || mAudioDecoder == NULL)
+                        && (mVideoEOS || mVideoDecoder == NULL)) {
+                    notifyListener(MEDIA2_PLAYBACK_COMPLETE, 0, 0);
+                }
+            } else if (what == Renderer::kWhatFlushComplete) {
+                int32_t audio;
+                CHECK(msg->findInt32("audio", &audio));
+
+                if (audio) {
+                    mAudioEOS = false;
+                } else {
+                    mVideoEOS = false;
+                }
+
+                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
+                if (audio && (mFlushingAudio == NONE || mFlushingAudio == FLUSHED
+                        || mFlushingAudio == SHUT_DOWN)) {
+                    // Flush has been handled by tear down.
+                    break;
+                }
+                handleFlushComplete(audio, false /* isDecoder */);
+                finishFlushIfPossible();
+            } else if (what == Renderer::kWhatVideoRenderingStart) {
+                notifyListener(MEDIA2_INFO, MEDIA2_INFO_RENDERING_START, 0);
+            } else if (what == Renderer::kWhatMediaRenderingStart) {
+                ALOGV("media rendering started");
+                notifyListener(MEDIA2_STARTED, 0, 0);
+            } else if (what == Renderer::kWhatAudioTearDown) {
+                int32_t reason;
+                CHECK(msg->findInt32("reason", &reason));
+                ALOGV("Tear down audio with reason %d.", reason);
+                if (reason == Renderer::kDueToTimeout && !(mPaused && mOffloadAudio)) {
+                    // TimeoutWhenPaused is only for offload mode.
+                    ALOGW("Receive a stale message for teardown.");
+                    break;
+                }
+                int64_t positionUs;
+                if (!msg->findInt64("positionUs", &positionUs)) {
+                    positionUs = mPreviousSeekTimeUs;
+                }
+
+                restartAudio(
+                        positionUs, reason == Renderer::kForceNonOffload /* forceNonOffload */,
+                        reason != Renderer::kDueToTimeout /* needsToCreateAudioDecoder */);
+            }
+            break;
+        }
+
+        case kWhatMoreDataQueued:
+        {
+            break;
+        }
+
+        case kWhatReset:
+        {
+            ALOGV("kWhatReset");
+
+            mResetting = true;
+            stopPlaybackTimer("kWhatReset");
+            stopRebufferingTimer(true);
+
+            mDeferredActions.push_back(
+                    new FlushDecoderAction(
+                        FLUSH_CMD_SHUTDOWN /* audio */,
+                        FLUSH_CMD_SHUTDOWN /* video */));
+
+            mDeferredActions.push_back(
+                    new SimpleAction(&NuPlayer2::performReset));
+
+            processDeferredActions();
+            break;
+        }
+
+        case kWhatNotifyTime:
+        {
+            ALOGV("kWhatNotifyTime");
+            int64_t timerUs;
+            CHECK(msg->findInt64("timerUs", &timerUs));
+
+            notifyListener(MEDIA2_NOTIFY_TIME, timerUs, 0);
+            break;
+        }
+
+        case kWhatSeek:
+        {
+            int64_t seekTimeUs;
+            int32_t mode;
+            int32_t needNotify;
+            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
+            CHECK(msg->findInt32("mode", &mode));
+            CHECK(msg->findInt32("needNotify", &needNotify));
+
+            ALOGV("kWhatSeek seekTimeUs=%lld us, mode=%d, needNotify=%d",
+                    (long long)seekTimeUs, mode, needNotify);
+
+            if (!mStarted) {
+                // Seek before the player is started. In order to preview video,
+                // need to start the player and pause it. This branch is called
+                // only once if needed. After the player is started, any seek
+                // operation will go through normal path.
+                // Audio-only cases are handled separately.
+                onStart(seekTimeUs, (MediaPlayer2SeekMode)mode);
+                if (mStarted) {
+                    onPause();
+                    mPausedByClient = true;
+                }
+                if (needNotify) {
+                    notifyDriverSeekComplete();
+                }
+                break;
+            }
+
+            mDeferredActions.push_back(
+                    new FlushDecoderAction(FLUSH_CMD_FLUSH /* audio */,
+                                           FLUSH_CMD_FLUSH /* video */));
+
+            mDeferredActions.push_back(
+                    new SeekAction(seekTimeUs, (MediaPlayer2SeekMode)mode));
+
+            // After a flush without shutdown, decoder is paused.
+            // Don't resume it until source seek is done, otherwise it could
+            // start pulling stale data too soon.
+            mDeferredActions.push_back(
+                    new ResumeDecoderAction(needNotify));
+
+            processDeferredActions();
+            break;
+        }
+
+        case kWhatPause:
+        {
+            onPause();
+            mPausedByClient = true;
+            break;
+        }
+
+        case kWhatSourceNotify:
+        {
+            onSourceNotify(msg);
+            break;
+        }
+
+        case kWhatClosedCaptionNotify:
+        {
+            onClosedCaptionNotify(msg);
+            break;
+        }
+
+        case kWhatPrepareDrm:
+        {
+            status_t status = onPrepareDrm(msg);
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("status", status);
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatReleaseDrm:
+        {
+            status_t status = onReleaseDrm();
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("status", status);
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
+        default:
+            TRESPASS();
+            break;
+    }
+}
+
+void NuPlayer2::onResume() {
+    if (!mPaused || mResetting) {
+        ALOGD_IF(mResetting, "resetting, onResume discarded");
+        return;
+    }
+    mPaused = false;
+    if (mSource != NULL) {
+        mSource->resume();
+    } else {
+        ALOGW("resume called when source is gone or not set");
+    }
+    // |mAudioDecoder| may have been released due to the pause timeout, so re-create it if
+    // needed.
+    if (audioDecoderStillNeeded() && mAudioDecoder == NULL) {
+        instantiateDecoder(true /* audio */, &mAudioDecoder);
+    }
+    if (mRenderer != NULL) {
+        mRenderer->resume();
+    } else {
+        ALOGW("resume called when renderer is gone or not set");
+    }
+
+    startPlaybackTimer("onresume");
+}
+
+status_t NuPlayer2::onInstantiateSecureDecoders() {
+    status_t err;
+    if (!(mSourceFlags & Source::FLAG_SECURE)) {
+        return BAD_TYPE;
+    }
+
+    if (mRenderer != NULL) {
+        ALOGE("renderer should not be set when instantiating secure decoders");
+        return UNKNOWN_ERROR;
+    }
+
+    // TRICKY: We rely on mRenderer being null, so that decoder does not start requesting
+    // data on instantiation.
+    if (mSurface != NULL) {
+        err = instantiateDecoder(false, &mVideoDecoder);
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    if (mAudioSink != NULL) {
+        err = instantiateDecoder(true, &mAudioDecoder);
+        if (err != OK) {
+            return err;
+        }
+    }
+    return OK;
+}
+
+void NuPlayer2::onStart(int64_t startPositionUs, MediaPlayer2SeekMode mode) {
+    ALOGV("onStart: mCrypto: %p", mCrypto.get());
+
+    if (!mSourceStarted) {
+        mSourceStarted = true;
+        mSource->start();
+    }
+    if (startPositionUs > 0) {
+        performSeek(startPositionUs, mode);
+        if (mSource->getFormat(false /* audio */) == NULL) {
+            return;
+        }
+    }
+
+    mOffloadAudio = false;
+    mAudioEOS = false;
+    mVideoEOS = false;
+    mStarted = true;
+    mPaused = false;
+
+    uint32_t flags = 0;
+
+    if (mSource->isRealTime()) {
+        flags |= Renderer::FLAG_REAL_TIME;
+    }
+
+    bool hasAudio = (mSource->getFormat(true /* audio */) != NULL);
+    bool hasVideo = (mSource->getFormat(false /* audio */) != NULL);
+    if (!hasAudio && !hasVideo) {
+        ALOGE("no metadata for either audio or video source");
+        mSource->stop();
+        mSourceStarted = false;
+        notifyListener(MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, ERROR_MALFORMED);
+        return;
+    }
+    ALOGV_IF(!hasAudio, "no metadata for audio source");  // video only stream
+
+    sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
+
+    audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
+    if (mAudioSink != NULL) {
+        streamType = mAudioSink->getAudioStreamType();
+    }
+
+    mOffloadAudio =
+        canOffloadStream(audioMeta, hasVideo, mSource->isStreaming(), streamType)
+                && (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);
+
+    // Modular DRM: Disabling audio offload if the source is protected
+    if (mOffloadAudio && mIsDrmProtected) {
+        mOffloadAudio = false;
+        ALOGV("onStart: Disabling mOffloadAudio now that the source is protected.");
+    }
+
+    if (mOffloadAudio) {
+        flags |= Renderer::FLAG_OFFLOAD_AUDIO;
+    }
+
+    sp<AMessage> notify = new AMessage(kWhatRendererNotify, this);
+    ++mRendererGeneration;
+    notify->setInt32("generation", mRendererGeneration);
+    mRenderer = new Renderer(mAudioSink, mMediaClock, notify, flags);
+    mRendererLooper = new ALooper;
+    mRendererLooper->setName("NuPlayerRenderer");
+    mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
+    mRendererLooper->registerHandler(mRenderer);
+
+    status_t err = mRenderer->setPlaybackSettings(mPlaybackSettings);
+    if (err != OK) {
+        mSource->stop();
+        mSourceStarted = false;
+        notifyListener(MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, err);
+        return;
+    }
+
+    float rate = getFrameRate();
+    if (rate > 0) {
+        mRenderer->setVideoFrameRate(rate);
+    }
+
+    if (mVideoDecoder != NULL) {
+        mVideoDecoder->setRenderer(mRenderer);
+    }
+    if (mAudioDecoder != NULL) {
+        mAudioDecoder->setRenderer(mRenderer);
+    }
+
+    startPlaybackTimer("onstart");
+
+    postScanSources();
+}
+
+void NuPlayer2::startPlaybackTimer(const char *where) {
+    Mutex::Autolock autoLock(mPlayingTimeLock);
+    if (mLastStartedPlayingTimeNs == 0) {
+        mLastStartedPlayingTimeNs = systemTime();
+        ALOGV("startPlaybackTimer() time %20" PRId64 " (%s)",  mLastStartedPlayingTimeNs, where);
+    }
+}
+
+void NuPlayer2::stopPlaybackTimer(const char *where) {
+    Mutex::Autolock autoLock(mPlayingTimeLock);
+
+    ALOGV("stopPlaybackTimer()  time %20" PRId64 " (%s)", mLastStartedPlayingTimeNs, where);
+
+    if (mLastStartedPlayingTimeNs != 0) {
+        sp<NuPlayer2Driver> driver = mDriver.promote();
+        if (driver != NULL) {
+            int64_t now = systemTime();
+            int64_t played = now - mLastStartedPlayingTimeNs;
+            ALOGV("stopPlaybackTimer()  log  %20" PRId64 "", played);
+
+            if (played > 0) {
+                driver->notifyMorePlayingTimeUs((played+500)/1000);
+            }
+        }
+        mLastStartedPlayingTimeNs = 0;
+    }
+}
+
+void NuPlayer2::startRebufferingTimer() {
+    Mutex::Autolock autoLock(mPlayingTimeLock);
+    if (mLastStartedRebufferingTimeNs == 0) {
+        mLastStartedRebufferingTimeNs = systemTime();
+        ALOGV("startRebufferingTimer() time %20" PRId64 "",  mLastStartedRebufferingTimeNs);
+    }
+}
+
+void NuPlayer2::stopRebufferingTimer(bool exitingPlayback) {
+    Mutex::Autolock autoLock(mPlayingTimeLock);
+
+    ALOGV("stopRebufferTimer()  time %20" PRId64 " (exiting %d)", mLastStartedRebufferingTimeNs, exitingPlayback);
+
+    if (mLastStartedRebufferingTimeNs != 0) {
+        sp<NuPlayer2Driver> driver = mDriver.promote();
+        if (driver != NULL) {
+            int64_t now = systemTime();
+            int64_t rebuffered = now - mLastStartedRebufferingTimeNs;
+            ALOGV("stopRebufferingTimer()  log  %20" PRId64 "", rebuffered);
+
+            if (rebuffered > 0) {
+                driver->notifyMoreRebufferingTimeUs((rebuffered+500)/1000);
+                if (exitingPlayback) {
+                    driver->notifyRebufferingWhenExit(true);
+                }
+            }
+        }
+        mLastStartedRebufferingTimeNs = 0;
+    }
+}
+
+void NuPlayer2::onPause() {
+
+    stopPlaybackTimer("onPause");
+
+    if (mPaused) {
+        return;
+    }
+    mPaused = true;
+    if (mSource != NULL) {
+        mSource->pause();
+    } else {
+        ALOGW("pause called when source is gone or not set");
+    }
+    if (mRenderer != NULL) {
+        mRenderer->pause();
+    } else {
+        ALOGW("pause called when renderer is gone or not set");
+    }
+
+}
+
+bool NuPlayer2::audioDecoderStillNeeded() {
+    // Audio decoder is no longer needed if it's in shut/shutting down status.
+    return ((mFlushingAudio != SHUT_DOWN) && (mFlushingAudio != SHUTTING_DOWN_DECODER));
+}
+
+void NuPlayer2::handleFlushComplete(bool audio, bool isDecoder) {
+    // We wait for both the decoder flush and the renderer flush to complete
+    // before entering either the FLUSHED or the SHUTTING_DOWN_DECODER state.
+
+    mFlushComplete[audio][isDecoder] = true;
+    if (!mFlushComplete[audio][!isDecoder]) {
+        return;
+    }
+
+    FlushStatus *state = audio ? &mFlushingAudio : &mFlushingVideo;
+    switch (*state) {
+        case FLUSHING_DECODER:
+        {
+            *state = FLUSHED;
+            break;
+        }
+
+        case FLUSHING_DECODER_SHUTDOWN:
+        {
+            *state = SHUTTING_DOWN_DECODER;
+
+            ALOGV("initiating %s decoder shutdown", audio ? "audio" : "video");
+            getDecoder(audio)->initiateShutdown();
+            break;
+        }
+
+        default:
+            // decoder flush completes only occur in a flushing state.
+            LOG_ALWAYS_FATAL_IF(isDecoder, "decoder flush in invalid state %d", *state);
+            break;
+    }
+}
+
+void NuPlayer2::finishFlushIfPossible() {
+    if (mFlushingAudio != NONE && mFlushingAudio != FLUSHED
+            && mFlushingAudio != SHUT_DOWN) {
+        return;
+    }
+
+    if (mFlushingVideo != NONE && mFlushingVideo != FLUSHED
+            && mFlushingVideo != SHUT_DOWN) {
+        return;
+    }
+
+    ALOGV("both audio and video are flushed now.");
+
+    mFlushingAudio = NONE;
+    mFlushingVideo = NONE;
+
+    clearFlushComplete();
+
+    processDeferredActions();
+}
+
+void NuPlayer2::postScanSources() {
+    if (mScanSourcesPending) {
+        return;
+    }
+
+    sp<AMessage> msg = new AMessage(kWhatScanSources, this);
+    msg->setInt32("generation", mScanSourcesGeneration);
+    msg->post();
+
+    mScanSourcesPending = true;
+}
+
+void NuPlayer2::tryOpenAudioSinkForOffload(
+        const sp<AMessage> &format, const sp<MetaData> &audioMeta, bool hasVideo) {
+    // Note: This is called early in NuPlayer2 to determine whether offloading
+    // is possible; otherwise the decoders call the renderer openAudioSink directly.
+
+    status_t err = mRenderer->openAudioSink(
+            format, true /* offloadOnly */, hasVideo,
+            AUDIO_OUTPUT_FLAG_NONE, &mOffloadAudio, mSource->isStreaming());
+    if (err != OK) {
+        // Any failure we turn off mOffloadAudio.
+        mOffloadAudio = false;
+    } else if (mOffloadAudio) {
+        sendMetaDataToHal(mAudioSink, audioMeta);
+    }
+}
+
+void NuPlayer2::closeAudioSink() {
+    mRenderer->closeAudioSink();
+}
+
+void NuPlayer2::restartAudio(
+        int64_t currentPositionUs, bool forceNonOffload, bool needsToCreateAudioDecoder) {
+    if (mAudioDecoder != NULL) {
+        mAudioDecoder->pause();
+        mAudioDecoder.clear();
+        mAudioDecoderError = false;
+        ++mAudioDecoderGeneration;
+    }
+    if (mFlushingAudio == FLUSHING_DECODER) {
+        mFlushComplete[1 /* audio */][1 /* isDecoder */] = true;
+        mFlushingAudio = FLUSHED;
+        finishFlushIfPossible();
+    } else if (mFlushingAudio == FLUSHING_DECODER_SHUTDOWN
+            || mFlushingAudio == SHUTTING_DOWN_DECODER) {
+        mFlushComplete[1 /* audio */][1 /* isDecoder */] = true;
+        mFlushingAudio = SHUT_DOWN;
+        finishFlushIfPossible();
+        needsToCreateAudioDecoder = false;
+    }
+    if (mRenderer == NULL) {
+        return;
+    }
+    closeAudioSink();
+    mRenderer->flush(true /* audio */, false /* notifyComplete */);
+    if (mVideoDecoder != NULL) {
+        mRenderer->flush(false /* audio */, false /* notifyComplete */);
+    }
+
+    performSeek(currentPositionUs, MediaPlayer2SeekMode::SEEK_PREVIOUS_SYNC /* mode */);
+
+    if (forceNonOffload) {
+        mRenderer->signalDisableOffloadAudio();
+        mOffloadAudio = false;
+    }
+    if (needsToCreateAudioDecoder) {
+        instantiateDecoder(true /* audio */, &mAudioDecoder, !forceNonOffload);
+    }
+}
+
+void NuPlayer2::determineAudioModeChange(const sp<AMessage> &audioFormat) {
+    if (mSource == NULL || mAudioSink == NULL) {
+        return;
+    }
+
+    if (mRenderer == NULL) {
+        ALOGW("No renderer can be used to determine audio mode. Use non-offload for safety.");
+        mOffloadAudio = false;
+        return;
+    }
+
+    sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
+    sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
+    audio_stream_type_t streamType = mAudioSink->getAudioStreamType();
+    const bool hasVideo = (videoFormat != NULL);
+    bool canOffload = canOffloadStream(
+            audioMeta, hasVideo, mSource->isStreaming(), streamType)
+                    && (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);
+
+    // Modular DRM: Disabling audio offload if the source is protected
+    if (canOffload && mIsDrmProtected) {
+        canOffload = false;
+        ALOGV("determineAudioModeChange: Disabling mOffloadAudio b/c the source is protected.");
+    }
+
+    if (canOffload) {
+        if (!mOffloadAudio) {
+            mRenderer->signalEnableOffloadAudio();
+        }
+        // open audio sink early under offload mode.
+        tryOpenAudioSinkForOffload(audioFormat, audioMeta, hasVideo);
+    } else {
+        if (mOffloadAudio) {
+            mRenderer->signalDisableOffloadAudio();
+            mOffloadAudio = false;
+        }
+    }
+}
+
+status_t NuPlayer2::instantiateDecoder(
+        bool audio, sp<DecoderBase> *decoder, bool checkAudioModeChange) {
+    // The audio decoder could be cleared by tear down. If still in shut down
+    // process, no need to create a new audio decoder.
+    if (*decoder != NULL || (audio && mFlushingAudio == SHUT_DOWN)) {
+        return OK;
+    }
+
+    sp<AMessage> format = mSource->getFormat(audio);
+
+    if (format == NULL) {
+        return UNKNOWN_ERROR;
+    } else {
+        status_t err;
+        if (format->findInt32("err", &err) && err) {
+            return err;
+        }
+    }
+
+    format->setInt32("priority", 0 /* realtime */);
+
+    if (!audio) {
+        AString mime;
+        CHECK(format->findString("mime", &mime));
+
+        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, this);
+        if (mCCDecoder == NULL) {
+            mCCDecoder = new CCDecoder(ccNotify);
+        }
+
+        if (mSourceFlags & Source::FLAG_SECURE) {
+            format->setInt32("secure", true);
+        }
+
+        if (mSourceFlags & Source::FLAG_PROTECTED) {
+            format->setInt32("protected", true);
+        }
+
+        float rate = getFrameRate();
+        if (rate > 0) {
+            format->setFloat("operating-rate", rate * mPlaybackSettings.mSpeed);
+        }
+    }
+
+    if (audio) {
+        sp<AMessage> notify = new AMessage(kWhatAudioNotify, this);
+        ++mAudioDecoderGeneration;
+        notify->setInt32("generation", mAudioDecoderGeneration);
+
+        if (checkAudioModeChange) {
+            determineAudioModeChange(format);
+        }
+        if (mOffloadAudio) {
+            mSource->setOffloadAudio(true /* offload */);
+
+            const bool hasVideo = (mSource->getFormat(false /*audio */) != NULL);
+            format->setInt32("has-video", hasVideo);
+            *decoder = new DecoderPassThrough(notify, mSource, mRenderer);
+            ALOGV("instantiateDecoder audio DecoderPassThrough  hasVideo: %d", hasVideo);
+        } else {
+            mSource->setOffloadAudio(false /* offload */);
+
+            *decoder = new Decoder(notify, mSource, mPID, mUID, mRenderer);
+            ALOGV("instantiateDecoder audio Decoder");
+        }
+        mAudioDecoderError = false;
+    } else {
+        sp<AMessage> notify = new AMessage(kWhatVideoNotify, this);
+        ++mVideoDecoderGeneration;
+        notify->setInt32("generation", mVideoDecoderGeneration);
+
+        *decoder = new Decoder(
+                notify, mSource, mPID, mUID, mRenderer, mSurface, mCCDecoder);
+        mVideoDecoderError = false;
+
+        // enable FRC if high-quality AV sync is requested, even if not
+        // directly queuing to display, as this will even improve textureview
+        // playback.
+        {
+            if (property_get_bool("persist.sys.media.avsync", false)) {
+                format->setInt32("auto-frc", 1);
+            }
+        }
+    }
+    (*decoder)->init();
+
+    // Modular DRM
+    if (mIsDrmProtected) {
+        format->setObject("crypto", mCrypto);
+        ALOGV("instantiateDecoder: mCrypto: %p isSecure: %d", mCrypto.get(),
+                (mSourceFlags & Source::FLAG_SECURE) != 0);
+    }
+
+    (*decoder)->configure(format);
+
+    if (!audio) {
+        sp<AMessage> params = new AMessage();
+        float rate = getFrameRate();
+        if (rate > 0) {
+            params->setFloat("frame-rate-total", rate);
+        }
+
+        sp<MetaData> fileMeta = getFileMeta();
+        if (fileMeta != NULL) {
+            int32_t videoTemporalLayerCount;
+            if (fileMeta->findInt32(kKeyTemporalLayerCount, &videoTemporalLayerCount)
+                    && videoTemporalLayerCount > 0) {
+                params->setInt32("temporal-layer-count", videoTemporalLayerCount);
+            }
+        }
+
+        if (params->countEntries() > 0) {
+            (*decoder)->setParameters(params);
+        }
+    }
+    return OK;
+}
+
+void NuPlayer2::updateVideoSize(
+        const sp<AMessage> &inputFormat,
+        const sp<AMessage> &outputFormat) {
+    if (inputFormat == NULL) {
+        ALOGW("Unknown video size, reporting 0x0!");
+        notifyListener(MEDIA2_SET_VIDEO_SIZE, 0, 0);
+        return;
+    }
+    int32_t err = OK;
+    inputFormat->findInt32("err", &err);
+    if (err == -EWOULDBLOCK) {
+        ALOGW("Video meta is not available yet!");
+        return;
+    }
+    if (err != OK) {
+        ALOGW("Something is wrong with video meta!");
+        return;
+    }
+
+    int32_t displayWidth, displayHeight;
+    if (outputFormat != NULL) {
+        int32_t width, height;
+        CHECK(outputFormat->findInt32("width", &width));
+        CHECK(outputFormat->findInt32("height", &height));
+
+        int32_t cropLeft, cropTop, cropRight, cropBottom;
+        CHECK(outputFormat->findRect(
+                    "crop",
+                    &cropLeft, &cropTop, &cropRight, &cropBottom));
+
+        displayWidth = cropRight - cropLeft + 1;
+        displayHeight = cropBottom - cropTop + 1;
+
+        ALOGV("Video output format changed to %d x %d "
+             "(crop: %d x %d @ (%d, %d))",
+             width, height,
+             displayWidth,
+             displayHeight,
+             cropLeft, cropTop);
+    } else {
+        CHECK(inputFormat->findInt32("width", &displayWidth));
+        CHECK(inputFormat->findInt32("height", &displayHeight));
+
+        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
+    }
+
+    // Take into account sample aspect ratio if necessary:
+    int32_t sarWidth, sarHeight;
+    if (inputFormat->findInt32("sar-width", &sarWidth)
+            && inputFormat->findInt32("sar-height", &sarHeight)
+            && sarWidth > 0 && sarHeight > 0) {
+        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
+
+        displayWidth = (displayWidth * sarWidth) / sarHeight;
+
+        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
+    } else {
+        int32_t width, height;
+        if (inputFormat->findInt32("display-width", &width)
+                && inputFormat->findInt32("display-height", &height)
+                && width > 0 && height > 0
+                && displayWidth > 0 && displayHeight > 0) {
+            if (displayHeight * (int64_t)width / height > (int64_t)displayWidth) {
+                displayHeight = (int32_t)(displayWidth * (int64_t)height / width);
+            } else {
+                displayWidth = (int32_t)(displayHeight * (int64_t)width / height);
+            }
+            ALOGV("Video display width and height are overridden to %d x %d",
+                 displayWidth, displayHeight);
+        }
+    }
+
+    int32_t rotationDegrees;
+    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
+        rotationDegrees = 0;
+    }
+
+    if (rotationDegrees == 90 || rotationDegrees == 270) {
+        int32_t tmp = displayWidth;
+        displayWidth = displayHeight;
+        displayHeight = tmp;
+    }
+
+    notifyListener(
+            MEDIA2_SET_VIDEO_SIZE,
+            displayWidth,
+            displayHeight);
+}
+
+void NuPlayer2::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
+    if (mDriver == NULL) {
+        return;
+    }
+
+    sp<NuPlayer2Driver> driver = mDriver.promote();
+
+    if (driver == NULL) {
+        return;
+    }
+
+    driver->notifyListener(msg, ext1, ext2, in);
+}
+
+void NuPlayer2::flushDecoder(bool audio, bool needShutdown) {
+    ALOGV("[%s] flushDecoder needShutdown=%d",
+          audio ? "audio" : "video", needShutdown);
+
+    const sp<DecoderBase> &decoder = getDecoder(audio);
+    if (decoder == NULL) {
+        ALOGI("flushDecoder %s without decoder present",
+             audio ? "audio" : "video");
+        return;
+    }
+
+    // Make sure we don't continue to scan sources until we finish flushing.
+    ++mScanSourcesGeneration;
+    if (mScanSourcesPending) {
+        if (!needShutdown) {
+            mDeferredActions.push_back(
+                    new SimpleAction(&NuPlayer2::performScanSources));
+        }
+        mScanSourcesPending = false;
+    }
+
+    decoder->signalFlush();
+
+    FlushStatus newStatus =
+        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
+
+    mFlushComplete[audio][false /* isDecoder */] = (mRenderer == NULL);
+    mFlushComplete[audio][true /* isDecoder */] = false;
+    if (audio) {
+        ALOGE_IF(mFlushingAudio != NONE,
+                "audio flushDecoder() is called in state %d", mFlushingAudio);
+        mFlushingAudio = newStatus;
+    } else {
+        ALOGE_IF(mFlushingVideo != NONE,
+                "video flushDecoder() is called in state %d", mFlushingVideo);
+        mFlushingVideo = newStatus;
+    }
+}
+
+void NuPlayer2::queueDecoderShutdown(
+        bool audio, bool video, const sp<AMessage> &reply) {
+    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
+
+    mDeferredActions.push_back(
+            new FlushDecoderAction(
+                audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
+                video ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE));
+
+    mDeferredActions.push_back(
+            new SimpleAction(&NuPlayer2::performScanSources));
+
+    mDeferredActions.push_back(new PostMessageAction(reply));
+
+    processDeferredActions();
+}
+
+status_t NuPlayer2::setVideoScalingMode(int32_t mode) {
+    mVideoScalingMode = mode;
+    if (mSurface != NULL) {
+        status_t ret = native_window_set_scaling_mode(mSurface.get(), mVideoScalingMode);
+        if (ret != OK) {
+            ALOGE("Failed to set scaling mode (%d): %s",
+                -ret, strerror(-ret));
+            return ret;
+        }
+    }
+    return OK;
+}
+
+status_t NuPlayer2::getTrackInfo(Parcel* reply) const {
+    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, this);
+    msg->setPointer("reply", reply);
+
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    return err;
+}
+
+status_t NuPlayer2::getSelectedTrack(int32_t type, Parcel* reply) const {
+    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, this);
+    msg->setPointer("reply", reply);
+    msg->setInt32("type", type);
+
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+    return err;
+}
+
+status_t NuPlayer2::selectTrack(size_t trackIndex, bool select, int64_t timeUs) {
+    sp<AMessage> msg = new AMessage(kWhatSelectTrack, this);
+    msg->setSize("trackIndex", trackIndex);
+    msg->setInt32("select", select);
+    msg->setInt64("timeUs", timeUs);
+
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+
+    if (err != OK) {
+        return err;
+    }
+
+    if (!response->findInt32("err", &err)) {
+        err = OK;
+    }
+
+    return err;
+}
+
+status_t NuPlayer2::getCurrentPosition(int64_t *mediaUs) {
+    sp<Renderer> renderer = mRenderer;
+    if (renderer == NULL) {
+        return NO_INIT;
+    }
+
+    return renderer->getCurrentPosition(mediaUs);
+}
+
+void NuPlayer2::getStats(Vector<sp<AMessage> > *mTrackStats) {
+    CHECK(mTrackStats != NULL);
+
+    mTrackStats->clear();
+    if (mVideoDecoder != NULL) {
+        mTrackStats->push_back(mVideoDecoder->getStats());
+    }
+    if (mAudioDecoder != NULL) {
+        mTrackStats->push_back(mAudioDecoder->getStats());
+    }
+}
+
+sp<MetaData> NuPlayer2::getFileMeta() {
+    return mSource->getFileFormatMeta();
+}
+
+float NuPlayer2::getFrameRate() {
+    sp<MetaData> meta = mSource->getFormatMeta(false /* audio */);
+    if (meta == NULL) {
+        return 0;
+    }
+    int32_t rate;
+    if (!meta->findInt32(kKeyFrameRate, &rate)) {
+        // fall back to try file meta
+        sp<MetaData> fileMeta = getFileMeta();
+        if (fileMeta == NULL) {
+            ALOGW("source has video meta but not file meta");
+            return -1;
+        }
+        int32_t fileMetaRate;
+        if (!fileMeta->findInt32(kKeyFrameRate, &fileMetaRate)) {
+            return -1;
+        }
+        return fileMetaRate;
+    }
+    return rate;
+}
+
+void NuPlayer2::schedulePollDuration() {
+    sp<AMessage> msg = new AMessage(kWhatPollDuration, this);
+    msg->setInt32("generation", mPollDurationGeneration);
+    msg->post();
+}
+
+void NuPlayer2::cancelPollDuration() {
+    ++mPollDurationGeneration;
+}
+
+void NuPlayer2::processDeferredActions() {
+    while (!mDeferredActions.empty()) {
+        // We won't execute any deferred actions until we're no longer in
+        // an intermediate state, i.e. one more more decoders are currently
+        // flushing or shutting down.
+
+        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
+            // We're currently flushing, postpone the reset until that's
+            // completed.
+
+            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
+                  mFlushingAudio, mFlushingVideo);
+
+            break;
+        }
+
+        sp<Action> action = *mDeferredActions.begin();
+        mDeferredActions.erase(mDeferredActions.begin());
+
+        action->execute(this);
+    }
+}
+
+void NuPlayer2::performSeek(int64_t seekTimeUs, MediaPlayer2SeekMode mode) {
+    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs), mode=%d",
+          (long long)seekTimeUs, seekTimeUs / 1E6, mode);
+
+    if (mSource == NULL) {
+        // This happens when reset occurs right before the loop mode
+        // asynchronously seeks to the start of the stream.
+        LOG_ALWAYS_FATAL_IF(mAudioDecoder != NULL || mVideoDecoder != NULL,
+                "mSource is NULL and decoders not NULL audio(%p) video(%p)",
+                mAudioDecoder.get(), mVideoDecoder.get());
+        return;
+    }
+    mPreviousSeekTimeUs = seekTimeUs;
+    mSource->seekTo(seekTimeUs, mode);
+    ++mTimedTextGeneration;
+
+    // everything's flushed, continue playback.
+}
+
+void NuPlayer2::performDecoderFlush(FlushCommand audio, FlushCommand video) {
+    ALOGV("performDecoderFlush audio=%d, video=%d", audio, video);
+
+    if ((audio == FLUSH_CMD_NONE || mAudioDecoder == NULL)
+            && (video == FLUSH_CMD_NONE || mVideoDecoder == NULL)) {
+        return;
+    }
+
+    if (audio != FLUSH_CMD_NONE && mAudioDecoder != NULL) {
+        flushDecoder(true /* audio */, (audio == FLUSH_CMD_SHUTDOWN));
+    }
+
+    if (video != FLUSH_CMD_NONE && mVideoDecoder != NULL) {
+        flushDecoder(false /* audio */, (video == FLUSH_CMD_SHUTDOWN));
+    }
+}
+
+void NuPlayer2::performReset() {
+    ALOGV("performReset");
+
+    CHECK(mAudioDecoder == NULL);
+    CHECK(mVideoDecoder == NULL);
+
+    stopPlaybackTimer("performReset");
+    stopRebufferingTimer(true);
+
+    cancelPollDuration();
+
+    ++mScanSourcesGeneration;
+    mScanSourcesPending = false;
+
+    if (mRendererLooper != NULL) {
+        if (mRenderer != NULL) {
+            mRendererLooper->unregisterHandler(mRenderer->id());
+        }
+        mRendererLooper->stop();
+        mRendererLooper.clear();
+    }
+    mRenderer.clear();
+    ++mRendererGeneration;
+
+    if (mSource != NULL) {
+        mSource->stop();
+
+        Mutex::Autolock autoLock(mSourceLock);
+        mSource.clear();
+    }
+
+    if (mDriver != NULL) {
+        sp<NuPlayer2Driver> driver = mDriver.promote();
+        if (driver != NULL) {
+            driver->notifyResetComplete();
+        }
+    }
+
+    mStarted = false;
+    mPrepared = false;
+    mResetting = false;
+    mSourceStarted = false;
+
+    // Modular DRM
+    if (mCrypto != NULL) {
+        // decoders will be flushed before this so their mCrypto would go away on their own
+        // TODO change to ALOGV
+        ALOGD("performReset mCrypto: %p", mCrypto.get());
+        mCrypto.clear();
+    }
+    mIsDrmProtected = false;
+}
+
+void NuPlayer2::performScanSources() {
+    ALOGV("performScanSources");
+
+    if (!mStarted) {
+        return;
+    }
+
+    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
+        postScanSources();
+    }
+}
+
+void NuPlayer2::performSetSurface(const sp<Surface> &surface) {
+    ALOGV("performSetSurface");
+
+    mSurface = surface;
+
+    // XXX - ignore error from setVideoScalingMode for now
+    setVideoScalingMode(mVideoScalingMode);
+
+    if (mDriver != NULL) {
+        sp<NuPlayer2Driver> driver = mDriver.promote();
+        if (driver != NULL) {
+            driver->notifySetSurfaceComplete();
+        }
+    }
+}
+
+void NuPlayer2::performResumeDecoders(bool needNotify) {
+    if (needNotify) {
+        mResumePending = true;
+        if (mVideoDecoder == NULL) {
+            // if audio-only, we can notify seek complete now,
+            // as the resume operation will be relatively fast.
+            finishResume();
+        }
+    }
+
+    if (mVideoDecoder != NULL) {
+        // When there is continuous seek, MediaPlayer will cache the seek
+        // position, and send down new seek request when previous seek is
+        // complete. Let's wait for at least one video output frame before
+        // notifying seek complete, so that the video thumbnail gets updated
+        // when seekbar is dragged.
+        mVideoDecoder->signalResume(needNotify);
+    }
+
+    if (mAudioDecoder != NULL) {
+        mAudioDecoder->signalResume(false /* needNotify */);
+    }
+}
+
+void NuPlayer2::finishResume() {
+    if (mResumePending) {
+        mResumePending = false;
+        notifyDriverSeekComplete();
+    }
+}
+
+void NuPlayer2::notifyDriverSeekComplete() {
+    if (mDriver != NULL) {
+        sp<NuPlayer2Driver> driver = mDriver.promote();
+        if (driver != NULL) {
+            driver->notifySeekComplete();
+        }
+    }
+}
+
+void NuPlayer2::onSourceNotify(const sp<AMessage> &msg) {
+    int32_t what;
+    CHECK(msg->findInt32("what", &what));
+
+    switch (what) {
+        case Source::kWhatInstantiateSecureDecoders:
+        {
+            if (mSource == NULL) {
+                // This is a stale notification from a source that was
+                // asynchronously preparing when the client called reset().
+                // We handled the reset, the source is gone.
+                break;
+            }
+
+            sp<AMessage> reply;
+            CHECK(msg->findMessage("reply", &reply));
+            status_t err = onInstantiateSecureDecoders();
+            reply->setInt32("err", err);
+            reply->post();
+            break;
+        }
+
+        case Source::kWhatPrepared:
+        {
+            ALOGV("NuPlayer2::onSourceNotify Source::kWhatPrepared source: %p", mSource.get());
+            if (mSource == NULL) {
+                // This is a stale notification from a source that was
+                // asynchronously preparing when the client called reset().
+                // We handled the reset, the source is gone.
+                break;
+            }
+
+            int32_t err;
+            CHECK(msg->findInt32("err", &err));
+
+            if (err != OK) {
+                // shut down potential secure codecs in case client never calls reset
+                mDeferredActions.push_back(
+                        new FlushDecoderAction(FLUSH_CMD_SHUTDOWN /* audio */,
+                                               FLUSH_CMD_SHUTDOWN /* video */));
+                processDeferredActions();
+            } else {
+                mPrepared = true;
+            }
+
+            sp<NuPlayer2Driver> driver = mDriver.promote();
+            if (driver != NULL) {
+                // notify duration first, so that it's definitely set when
+                // the app received the "prepare complete" callback.
+                int64_t durationUs;
+                if (mSource->getDuration(&durationUs) == OK) {
+                    driver->notifyDuration(durationUs);
+                }
+                driver->notifyPrepareCompleted(err);
+            }
+
+            break;
+        }
+
+        // Modular DRM
+        case Source::kWhatDrmInfo:
+        {
+            Parcel parcel;
+            sp<ABuffer> drmInfo;
+            CHECK(msg->findBuffer("drmInfo", &drmInfo));
+            parcel.setData(drmInfo->data(), drmInfo->size());
+
+            ALOGV("onSourceNotify() kWhatDrmInfo MEDIA2_DRM_INFO drmInfo: %p  parcel size: %zu",
+                    drmInfo.get(), parcel.dataSize());
+
+            notifyListener(MEDIA2_DRM_INFO, 0 /* ext1 */, 0 /* ext2 */, &parcel);
+
+            break;
+        }
+
+        case Source::kWhatFlagsChanged:
+        {
+            uint32_t flags;
+            CHECK(msg->findInt32("flags", (int32_t *)&flags));
+
+            sp<NuPlayer2Driver> driver = mDriver.promote();
+            if (driver != NULL) {
+
+                ALOGV("onSourceNotify() kWhatFlagsChanged  FLAG_CAN_PAUSE: %d  "
+                        "FLAG_CAN_SEEK_BACKWARD: %d \n\t\t\t\t FLAG_CAN_SEEK_FORWARD: %d  "
+                        "FLAG_CAN_SEEK: %d  FLAG_DYNAMIC_DURATION: %d \n"
+                        "\t\t\t\t FLAG_SECURE: %d  FLAG_PROTECTED: %d",
+                        (flags & Source::FLAG_CAN_PAUSE) != 0,
+                        (flags & Source::FLAG_CAN_SEEK_BACKWARD) != 0,
+                        (flags & Source::FLAG_CAN_SEEK_FORWARD) != 0,
+                        (flags & Source::FLAG_CAN_SEEK) != 0,
+                        (flags & Source::FLAG_DYNAMIC_DURATION) != 0,
+                        (flags & Source::FLAG_SECURE) != 0,
+                        (flags & Source::FLAG_PROTECTED) != 0);
+
+                if ((flags & NuPlayer2::Source::FLAG_CAN_SEEK) == 0) {
+                    driver->notifyListener(
+                            MEDIA2_INFO, MEDIA2_INFO_NOT_SEEKABLE, 0);
+                }
+                driver->notifyFlagsChanged(flags);
+            }
+
+            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
+                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
+                cancelPollDuration();
+            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
+                    && (flags & Source::FLAG_DYNAMIC_DURATION)
+                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
+                schedulePollDuration();
+            }
+
+            mSourceFlags = flags;
+            break;
+        }
+
+        case Source::kWhatVideoSizeChanged:
+        {
+            sp<AMessage> format;
+            CHECK(msg->findMessage("format", &format));
+
+            updateVideoSize(format);
+            break;
+        }
+
+        case Source::kWhatBufferingUpdate:
+        {
+            int32_t percentage;
+            CHECK(msg->findInt32("percentage", &percentage));
+
+            notifyListener(MEDIA2_BUFFERING_UPDATE, percentage, 0);
+            break;
+        }
+
+        case Source::kWhatPauseOnBufferingStart:
+        {
+            // ignore if not playing
+            if (mStarted) {
+                ALOGI("buffer low, pausing...");
+
+                startRebufferingTimer();
+                mPausedForBuffering = true;
+                onPause();
+            }
+            notifyListener(MEDIA2_INFO, MEDIA2_INFO_BUFFERING_START, 0);
+            break;
+        }
+
+        case Source::kWhatResumeOnBufferingEnd:
+        {
+            // ignore if not playing
+            if (mStarted) {
+                ALOGI("buffer ready, resuming...");
+
+                stopRebufferingTimer(false);
+                mPausedForBuffering = false;
+
+                // do not resume yet if client didn't unpause
+                if (!mPausedByClient) {
+                    onResume();
+                }
+            }
+            notifyListener(MEDIA2_INFO, MEDIA2_INFO_BUFFERING_END, 0);
+            break;
+        }
+
+        case Source::kWhatCacheStats:
+        {
+            int32_t kbps;
+            CHECK(msg->findInt32("bandwidth", &kbps));
+
+            notifyListener(MEDIA2_INFO, MEDIA2_INFO_NETWORK_BANDWIDTH, kbps);
+            break;
+        }
+
+        case Source::kWhatSubtitleData:
+        {
+            sp<ABuffer> buffer;
+            CHECK(msg->findBuffer("buffer", &buffer));
+
+            sendSubtitleData(buffer, 0 /* baseIndex */);
+            break;
+        }
+
+        case Source::kWhatTimedMetaData:
+        {
+            sp<ABuffer> buffer;
+            if (!msg->findBuffer("buffer", &buffer)) {
+                notifyListener(MEDIA2_INFO, MEDIA2_INFO_METADATA_UPDATE, 0);
+            } else {
+                sendTimedMetaData(buffer);
+            }
+            break;
+        }
+
+        case Source::kWhatTimedTextData:
+        {
+            int32_t generation;
+            if (msg->findInt32("generation", &generation)
+                    && generation != mTimedTextGeneration) {
+                break;
+            }
+
+            sp<ABuffer> buffer;
+            CHECK(msg->findBuffer("buffer", &buffer));
+
+            sp<NuPlayer2Driver> driver = mDriver.promote();
+            if (driver == NULL) {
+                break;
+            }
+
+            int posMs;
+            int64_t timeUs, posUs;
+            driver->getCurrentPosition(&posMs);
+            posUs = (int64_t) posMs * 1000ll;
+            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
+
+            if (posUs < timeUs) {
+                if (!msg->findInt32("generation", &generation)) {
+                    msg->setInt32("generation", mTimedTextGeneration);
+                }
+                msg->post(timeUs - posUs);
+            } else {
+                sendTimedTextData(buffer);
+            }
+            break;
+        }
+
+        case Source::kWhatQueueDecoderShutdown:
+        {
+            int32_t audio, video;
+            CHECK(msg->findInt32("audio", &audio));
+            CHECK(msg->findInt32("video", &video));
+
+            sp<AMessage> reply;
+            CHECK(msg->findMessage("reply", &reply));
+
+            queueDecoderShutdown(audio, video, reply);
+            break;
+        }
+
+        case Source::kWhatDrmNoLicense:
+        {
+            notifyListener(MEDIA2_ERROR, MEDIA2_ERROR_UNKNOWN, ERROR_DRM_NO_LICENSE);
+            break;
+        }
+
+        default:
+            TRESPASS();
+    }
+}
+
+void NuPlayer2::onClosedCaptionNotify(const sp<AMessage> &msg) {
+    int32_t what;
+    CHECK(msg->findInt32("what", &what));
+
+    switch (what) {
+        case NuPlayer2::CCDecoder::kWhatClosedCaptionData:
+        {
+            sp<ABuffer> buffer;
+            CHECK(msg->findBuffer("buffer", &buffer));
+
+            size_t inbandTracks = 0;
+            if (mSource != NULL) {
+                inbandTracks = mSource->getTrackCount();
+            }
+
+            sendSubtitleData(buffer, inbandTracks);
+            break;
+        }
+
+        case NuPlayer2::CCDecoder::kWhatTrackAdded:
+        {
+            notifyListener(MEDIA2_INFO, MEDIA2_INFO_METADATA_UPDATE, 0);
+
+            break;
+        }
+
+        default:
+            TRESPASS();
+    }
+
+
+}
+
+void NuPlayer2::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
+    int32_t trackIndex;
+    int64_t timeUs, durationUs;
+    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
+    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
+    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
+
+    Parcel in;
+    in.writeInt32(trackIndex + baseIndex);
+    in.writeInt64(timeUs);
+    in.writeInt64(durationUs);
+    in.writeInt32(buffer->size());
+    in.writeInt32(buffer->size());
+    in.write(buffer->data(), buffer->size());
+
+    notifyListener(MEDIA2_SUBTITLE_DATA, 0, 0, &in);
+}
+
+void NuPlayer2::sendTimedMetaData(const sp<ABuffer> &buffer) {
+    int64_t timeUs;
+    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
+
+    Parcel in;
+    in.writeInt64(timeUs);
+    in.writeInt32(buffer->size());
+    in.writeInt32(buffer->size());
+    in.write(buffer->data(), buffer->size());
+
+    notifyListener(MEDIA2_META_DATA, 0, 0, &in);
+}
+
+void NuPlayer2::sendTimedTextData(const sp<ABuffer> &buffer) {
+    const void *data;
+    size_t size = 0;
+    int64_t timeUs;
+    int32_t flag = TextDescriptions::IN_BAND_TEXT_3GPP;
+
+    AString mime;
+    CHECK(buffer->meta()->findString("mime", &mime));
+    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
+
+    data = buffer->data();
+    size = buffer->size();
+
+    Parcel parcel;
+    if (size > 0) {
+        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
+        int32_t global = 0;
+        if (buffer->meta()->findInt32("global", &global) && global) {
+            flag |= TextDescriptions::GLOBAL_DESCRIPTIONS;
+        } else {
+            flag |= TextDescriptions::LOCAL_DESCRIPTIONS;
+        }
+        TextDescriptions::getParcelOfDescriptions(
+                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
+    }
+
+    if ((parcel.dataSize() > 0)) {
+        notifyListener(MEDIA2_TIMED_TEXT, 0, 0, &parcel);
+    } else {  // send an empty timed text
+        notifyListener(MEDIA2_TIMED_TEXT, 0, 0);
+    }
+}
+
+const char *NuPlayer2::getDataSourceType() {
+    switch (mDataSourceType) {
+        case DATA_SOURCE_TYPE_HTTP_LIVE:
+            return "HTTPLive";
+
+        case DATA_SOURCE_TYPE_RTSP:
+            return "RTSP";
+
+        case DATA_SOURCE_TYPE_GENERIC_URL:
+            return "GenURL";
+
+        case DATA_SOURCE_TYPE_GENERIC_FD:
+            return "GenFD";
+
+        case DATA_SOURCE_TYPE_MEDIA:
+            return "Media";
+
+        case DATA_SOURCE_TYPE_STREAM:
+            return "Stream";
+
+        case DATA_SOURCE_TYPE_NONE:
+        default:
+            return "None";
+    }
+ }
+
+// Modular DRM begin
+status_t NuPlayer2::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId)
+{
+    ALOGV("prepareDrm ");
+
+    // Passing to the looper anyway; called in a pre-config prepared state so no race on mCrypto
+    sp<AMessage> msg = new AMessage(kWhatPrepareDrm, this);
+    // synchronous call so just passing the address but with local copies of "const" args
+    uint8_t UUID[16];
+    memcpy(UUID, uuid, sizeof(UUID));
+    Vector<uint8_t> sessionId = drmSessionId;
+    msg->setPointer("uuid", (void*)UUID);
+    msg->setPointer("drmSessionId", (void*)&sessionId);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("prepareDrm ret: %d ", status);
+    } else {
+        ALOGE("prepareDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer2::releaseDrm()
+{
+    ALOGV("releaseDrm ");
+
+    sp<AMessage> msg = new AMessage(kWhatReleaseDrm, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseDrm ret: %d ", status);
+    } else {
+        ALOGE("releaseDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer2::onPrepareDrm(const sp<AMessage> &msg)
+{
+    // TODO change to ALOGV
+    ALOGD("onPrepareDrm ");
+
+    status_t status = INVALID_OPERATION;
+    if (mSource == NULL) {
+        ALOGE("onPrepareDrm: No source. onPrepareDrm failed with %d.", status);
+        return status;
+    }
+
+    uint8_t *uuid;
+    Vector<uint8_t> *drmSessionId;
+    CHECK(msg->findPointer("uuid", (void**)&uuid));
+    CHECK(msg->findPointer("drmSessionId", (void**)&drmSessionId));
+
+    status = OK;
+    sp<AMediaCryptoWrapper> crypto = NULL;
+
+    status = mSource->prepareDrm(uuid, *drmSessionId, &crypto);
+    if (crypto == NULL) {
+        ALOGE("onPrepareDrm: mSource->prepareDrm failed. status: %d", status);
+        return status;
+    }
+    ALOGV("onPrepareDrm: mSource->prepareDrm succeeded");
+
+    if (mCrypto != NULL) {
+        ALOGE("onPrepareDrm: Unexpected. Already having mCrypto: %p", mCrypto.get());
+        mCrypto.clear();
+    }
+
+    mCrypto = crypto;
+    mIsDrmProtected = true;
+    // TODO change to ALOGV
+    ALOGD("onPrepareDrm: mCrypto: %p", mCrypto.get());
+
+    return status;
+}
+
+status_t NuPlayer2::onReleaseDrm()
+{
+    // TODO change to ALOGV
+    ALOGD("onReleaseDrm ");
+
+    if (!mIsDrmProtected) {
+        ALOGW("onReleaseDrm: Unexpected. mIsDrmProtected is already false.");
+    }
+
+    mIsDrmProtected = false;
+
+    status_t status;
+    if (mCrypto != NULL) {
+        // notifying the source first before removing crypto from codec
+        if (mSource != NULL) {
+            mSource->releaseDrm();
+        }
+
+        status=OK;
+        // first making sure the codecs have released their crypto reference
+        const sp<DecoderBase> &videoDecoder = getDecoder(false/*audio*/);
+        if (videoDecoder != NULL) {
+            status = videoDecoder->releaseCrypto();
+            ALOGV("onReleaseDrm: video decoder ret: %d", status);
+        }
+
+        const sp<DecoderBase> &audioDecoder = getDecoder(true/*audio*/);
+        if (audioDecoder != NULL) {
+            status_t status_audio = audioDecoder->releaseCrypto();
+            if (status == OK) {   // otherwise, returning the first error
+                status = status_audio;
+            }
+            ALOGV("onReleaseDrm: audio decoder ret: %d", status_audio);
+        }
+
+        // TODO change to ALOGV
+        ALOGD("onReleaseDrm: mCrypto: %p", mCrypto.get());
+        mCrypto.clear();
+    } else {   // mCrypto == NULL
+        ALOGE("onReleaseDrm: Unexpected. There is no crypto.");
+        status = INVALID_OPERATION;
+    }
+
+    return status;
+}
+// Modular DRM end
+////////////////////////////////////////////////////////////////////////////////
+
+sp<AMessage> NuPlayer2::Source::getFormat(bool audio) {
+    sp<MetaData> meta = getFormatMeta(audio);
+
+    if (meta == NULL) {
+        return NULL;
+    }
+
+    sp<AMessage> msg = new AMessage;
+
+    if(convertMetaDataToMessage(meta, &msg) == OK) {
+        return msg;
+    }
+    return NULL;
+}
+
+void NuPlayer2::Source::notifyFlagsChanged(uint32_t flags) {
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatFlagsChanged);
+    notify->setInt32("flags", flags);
+    notify->post();
+}
+
+void NuPlayer2::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatVideoSizeChanged);
+    notify->setMessage("format", format);
+    notify->post();
+}
+
+void NuPlayer2::Source::notifyPrepared(status_t err) {
+    ALOGV("Source::notifyPrepared %d", err);
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatPrepared);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void NuPlayer2::Source::notifyDrmInfo(const sp<ABuffer> &drmInfoBuffer)
+{
+    ALOGV("Source::notifyDrmInfo");
+
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatDrmInfo);
+    notify->setBuffer("drmInfo", drmInfoBuffer);
+
+    notify->post();
+}
+
+void NuPlayer2::Source::notifyInstantiateSecureDecoders(const sp<AMessage> &reply) {
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatInstantiateSecureDecoders);
+    notify->setMessage("reply", reply);
+    notify->post();
+}
+
+void NuPlayer2::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
+    TRESPASS();
+}
+
+}  // namespace android