| /* |
| * Copyright 2012, 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 "PlaybackSession" |
| #include <utils/Log.h> |
| |
| #include "PlaybackSession.h" |
| |
| #include "Converter.h" |
| #include "MediaPuller.h" |
| #include "RepeaterSource.h" |
| #include "Sender.h" |
| #include "TSPacketizer.h" |
| #include "include/avc_utils.h" |
| |
| #include <binder/IServiceManager.h> |
| #include <gui/ISurfaceComposer.h> |
| #include <gui/SurfaceComposerClient.h> |
| #include <media/IHDCP.h> |
| #include <media/stagefright/foundation/ABitReader.h> |
| #include <media/stagefright/foundation/ABuffer.h> |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/foundation/AMessage.h> |
| #include <media/stagefright/foundation/hexdump.h> |
| #include <media/stagefright/AudioSource.h> |
| #include <media/stagefright/DataSource.h> |
| #include <media/stagefright/MediaDefs.h> |
| #include <media/stagefright/MediaErrors.h> |
| #include <media/stagefright/MediaExtractor.h> |
| #include <media/stagefright/MediaSource.h> |
| #include <media/stagefright/MetaData.h> |
| #include <media/stagefright/MPEG2TSWriter.h> |
| #include <media/stagefright/SurfaceMediaSource.h> |
| #include <media/stagefright/Utils.h> |
| |
| #include <OMX_IVCommon.h> |
| |
| namespace android { |
| |
| struct WifiDisplaySource::PlaybackSession::Track : public AHandler { |
| enum { |
| kWhatStopped, |
| }; |
| |
| Track(const sp<AMessage> ¬ify, |
| const sp<ALooper> &pullLooper, |
| const sp<ALooper> &codecLooper, |
| const sp<MediaPuller> &mediaPuller, |
| const sp<Converter> &converter); |
| |
| void setRepeaterSource(const sp<RepeaterSource> &source); |
| |
| sp<AMessage> getFormat(); |
| bool isAudio() const; |
| |
| const sp<Converter> &converter() const; |
| ssize_t packetizerTrackIndex() const; |
| |
| void setPacketizerTrackIndex(size_t index); |
| |
| status_t start(); |
| void stopAsync(); |
| |
| void queueAccessUnit(const sp<ABuffer> &accessUnit); |
| sp<ABuffer> dequeueAccessUnit(); |
| |
| bool hasOutputBuffer(int64_t *timeUs) const; |
| void queueOutputBuffer(const sp<ABuffer> &accessUnit); |
| sp<ABuffer> dequeueOutputBuffer(); |
| bool isSuspended() const; |
| |
| size_t countQueuedOutputBuffers() const { |
| return mQueuedOutputBuffers.size(); |
| } |
| |
| void requestIDRFrame(); |
| |
| protected: |
| virtual void onMessageReceived(const sp<AMessage> &msg); |
| virtual ~Track(); |
| |
| private: |
| enum { |
| kWhatMediaPullerStopped, |
| }; |
| |
| sp<AMessage> mNotify; |
| sp<ALooper> mPullLooper; |
| sp<ALooper> mCodecLooper; |
| sp<MediaPuller> mMediaPuller; |
| sp<Converter> mConverter; |
| bool mStarted; |
| ssize_t mPacketizerTrackIndex; |
| bool mIsAudio; |
| List<sp<ABuffer> > mQueuedAccessUnits; |
| sp<RepeaterSource> mRepeaterSource; |
| List<sp<ABuffer> > mQueuedOutputBuffers; |
| int64_t mLastOutputBufferQueuedTimeUs; |
| |
| static bool IsAudioFormat(const sp<AMessage> &format); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(Track); |
| }; |
| |
| WifiDisplaySource::PlaybackSession::Track::Track( |
| const sp<AMessage> ¬ify, |
| const sp<ALooper> &pullLooper, |
| const sp<ALooper> &codecLooper, |
| const sp<MediaPuller> &mediaPuller, |
| const sp<Converter> &converter) |
| : mNotify(notify), |
| mPullLooper(pullLooper), |
| mCodecLooper(codecLooper), |
| mMediaPuller(mediaPuller), |
| mConverter(converter), |
| mStarted(false), |
| mPacketizerTrackIndex(-1), |
| mIsAudio(IsAudioFormat(mConverter->getOutputFormat())), |
| mLastOutputBufferQueuedTimeUs(-1ll) { |
| } |
| |
| WifiDisplaySource::PlaybackSession::Track::~Track() { |
| CHECK(!mStarted); |
| } |
| |
| // static |
| bool WifiDisplaySource::PlaybackSession::Track::IsAudioFormat( |
| const sp<AMessage> &format) { |
| AString mime; |
| CHECK(format->findString("mime", &mime)); |
| |
| return !strncasecmp(mime.c_str(), "audio/", 6); |
| } |
| |
| sp<AMessage> WifiDisplaySource::PlaybackSession::Track::getFormat() { |
| return mConverter->getOutputFormat(); |
| } |
| |
| bool WifiDisplaySource::PlaybackSession::Track::isAudio() const { |
| return mIsAudio; |
| } |
| |
| const sp<Converter> &WifiDisplaySource::PlaybackSession::Track::converter() const { |
| return mConverter; |
| } |
| |
| ssize_t WifiDisplaySource::PlaybackSession::Track::packetizerTrackIndex() const { |
| return mPacketizerTrackIndex; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::setPacketizerTrackIndex(size_t index) { |
| CHECK_LT(mPacketizerTrackIndex, 0); |
| mPacketizerTrackIndex = index; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::Track::start() { |
| ALOGV("Track::start isAudio=%d", mIsAudio); |
| |
| CHECK(!mStarted); |
| |
| status_t err = OK; |
| |
| if (mMediaPuller != NULL) { |
| err = mMediaPuller->start(); |
| } |
| |
| if (err == OK) { |
| mStarted = true; |
| } |
| |
| return err; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::stopAsync() { |
| ALOGV("Track::stopAsync isAudio=%d", mIsAudio); |
| |
| mConverter->shutdownAsync(); |
| |
| sp<AMessage> msg = new AMessage(kWhatMediaPullerStopped, id()); |
| |
| if (mStarted && mMediaPuller != NULL) { |
| if (mRepeaterSource != NULL) { |
| // Let's unblock MediaPuller's MediaSource::read(). |
| mRepeaterSource->wakeUp(); |
| } |
| |
| mMediaPuller->stopAsync(msg); |
| } else { |
| msg->post(); |
| } |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::onMessageReceived( |
| const sp<AMessage> &msg) { |
| switch (msg->what()) { |
| case kWhatMediaPullerStopped: |
| { |
| mConverter.clear(); |
| |
| mStarted = false; |
| |
| sp<AMessage> notify = mNotify->dup(); |
| notify->setInt32("what", kWhatStopped); |
| notify->post(); |
| |
| ALOGI("kWhatStopped %s posted", mIsAudio ? "audio" : "video"); |
| break; |
| } |
| |
| default: |
| TRESPASS(); |
| } |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::queueAccessUnit( |
| const sp<ABuffer> &accessUnit) { |
| mQueuedAccessUnits.push_back(accessUnit); |
| } |
| |
| sp<ABuffer> WifiDisplaySource::PlaybackSession::Track::dequeueAccessUnit() { |
| if (mQueuedAccessUnits.empty()) { |
| return NULL; |
| } |
| |
| sp<ABuffer> accessUnit = *mQueuedAccessUnits.begin(); |
| CHECK(accessUnit != NULL); |
| |
| mQueuedAccessUnits.erase(mQueuedAccessUnits.begin()); |
| |
| return accessUnit; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::setRepeaterSource( |
| const sp<RepeaterSource> &source) { |
| mRepeaterSource = source; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::requestIDRFrame() { |
| if (mIsAudio) { |
| return; |
| } |
| |
| if (mRepeaterSource != NULL) { |
| mRepeaterSource->wakeUp(); |
| } |
| |
| mConverter->requestIDRFrame(); |
| } |
| |
| bool WifiDisplaySource::PlaybackSession::Track::hasOutputBuffer( |
| int64_t *timeUs) const { |
| *timeUs = 0ll; |
| |
| if (mQueuedOutputBuffers.empty()) { |
| return false; |
| } |
| |
| const sp<ABuffer> &outputBuffer = *mQueuedOutputBuffers.begin(); |
| |
| CHECK(outputBuffer->meta()->findInt64("timeUs", timeUs)); |
| |
| return true; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::Track::queueOutputBuffer( |
| const sp<ABuffer> &accessUnit) { |
| mQueuedOutputBuffers.push_back(accessUnit); |
| |
| mLastOutputBufferQueuedTimeUs = ALooper::GetNowUs(); |
| } |
| |
| sp<ABuffer> WifiDisplaySource::PlaybackSession::Track::dequeueOutputBuffer() { |
| CHECK(!mQueuedOutputBuffers.empty()); |
| |
| sp<ABuffer> outputBuffer = *mQueuedOutputBuffers.begin(); |
| mQueuedOutputBuffers.erase(mQueuedOutputBuffers.begin()); |
| |
| return outputBuffer; |
| } |
| |
| bool WifiDisplaySource::PlaybackSession::Track::isSuspended() const { |
| if (!mQueuedOutputBuffers.empty()) { |
| return false; |
| } |
| |
| if (mLastOutputBufferQueuedTimeUs < 0ll) { |
| // We've never seen an output buffer queued, but tracks start |
| // out live, not suspended. |
| return false; |
| } |
| |
| // If we've not seen new output data for 60ms or more, we consider |
| // this track suspended for the time being. |
| return (ALooper::GetNowUs() - mLastOutputBufferQueuedTimeUs) > 60000ll; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| WifiDisplaySource::PlaybackSession::PlaybackSession( |
| const sp<ANetworkSession> &netSession, |
| const sp<AMessage> ¬ify, |
| const in_addr &interfaceAddr, |
| const sp<IHDCP> &hdcp) |
| : mNetSession(netSession), |
| mNotify(notify), |
| mInterfaceAddr(interfaceAddr), |
| mHDCP(hdcp), |
| mWeAreDead(false), |
| mLastLifesignUs(), |
| mVideoTrackIndex(-1), |
| mPrevTimeUs(-1ll), |
| mAllTracksHavePacketizerIndex(false) { |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::init( |
| const char *clientIP, int32_t clientRtp, int32_t clientRtcp, |
| Sender::TransportMode transportMode, |
| bool usePCMAudio) { |
| status_t err = setupPacketizer(usePCMAudio); |
| |
| if (err != OK) { |
| return err; |
| } |
| |
| sp<AMessage> notify = new AMessage(kWhatSenderNotify, id()); |
| mSender = new Sender(mNetSession, notify); |
| |
| mSenderLooper = new ALooper; |
| mSenderLooper->setName("sender_looper"); |
| |
| mSenderLooper->start( |
| false /* runOnCallingThread */, |
| false /* canCallJava */, |
| PRIORITY_AUDIO); |
| |
| mSenderLooper->registerHandler(mSender); |
| |
| err = mSender->init(clientIP, clientRtp, clientRtcp, transportMode); |
| |
| if (err != OK) { |
| return err; |
| } |
| |
| updateLiveness(); |
| |
| return OK; |
| } |
| |
| WifiDisplaySource::PlaybackSession::~PlaybackSession() { |
| } |
| |
| int32_t WifiDisplaySource::PlaybackSession::getRTPPort() const { |
| return mSender->getRTPPort(); |
| } |
| |
| int64_t WifiDisplaySource::PlaybackSession::getLastLifesignUs() const { |
| return mLastLifesignUs; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::updateLiveness() { |
| mLastLifesignUs = ALooper::GetNowUs(); |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::play() { |
| updateLiveness(); |
| |
| return OK; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::finishPlay() { |
| // XXX Give the dongle a second to bind its sockets. |
| (new AMessage(kWhatFinishPlay, id()))->post(1000000ll); |
| return OK; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::onFinishPlay() { |
| return mSender->finishInit(); |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::onFinishPlay2() { |
| mSender->scheduleSendSR(); |
| |
| for (size_t i = 0; i < mTracks.size(); ++i) { |
| CHECK_EQ((status_t)OK, mTracks.editValueAt(i)->start()); |
| } |
| |
| sp<AMessage> notify = mNotify->dup(); |
| notify->setInt32("what", kWhatSessionEstablished); |
| notify->post(); |
| |
| return OK; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::pause() { |
| updateLiveness(); |
| |
| return OK; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::destroyAsync() { |
| ALOGI("destroyAsync"); |
| |
| for (size_t i = 0; i < mTracks.size(); ++i) { |
| mTracks.valueAt(i)->stopAsync(); |
| } |
| } |
| |
| void WifiDisplaySource::PlaybackSession::onMessageReceived( |
| const sp<AMessage> &msg) { |
| switch (msg->what()) { |
| case kWhatConverterNotify: |
| { |
| if (mWeAreDead) { |
| ALOGV("dropping msg '%s' because we're dead", |
| msg->debugString().c_str()); |
| |
| break; |
| } |
| |
| int32_t what; |
| CHECK(msg->findInt32("what", &what)); |
| |
| size_t trackIndex; |
| CHECK(msg->findSize("trackIndex", &trackIndex)); |
| |
| if (what == Converter::kWhatAccessUnit) { |
| const sp<Track> &track = mTracks.valueFor(trackIndex); |
| |
| ssize_t packetizerTrackIndex = track->packetizerTrackIndex(); |
| |
| if (packetizerTrackIndex < 0) { |
| packetizerTrackIndex = |
| mPacketizer->addTrack(track->getFormat()); |
| |
| CHECK_GE(packetizerTrackIndex, 0); |
| |
| track->setPacketizerTrackIndex(packetizerTrackIndex); |
| |
| if (allTracksHavePacketizerIndex()) { |
| status_t err = packetizeQueuedAccessUnits(); |
| |
| if (err != OK) { |
| notifySessionDead(); |
| break; |
| } |
| } |
| } |
| |
| sp<ABuffer> accessUnit; |
| CHECK(msg->findBuffer("accessUnit", &accessUnit)); |
| |
| if (!allTracksHavePacketizerIndex()) { |
| track->queueAccessUnit(accessUnit); |
| break; |
| } |
| |
| track->queueOutputBuffer(accessUnit); |
| |
| drainAccessUnits(); |
| break; |
| } else if (what == Converter::kWhatEOS) { |
| CHECK_EQ(what, Converter::kWhatEOS); |
| |
| ALOGI("output EOS on track %d", trackIndex); |
| |
| ssize_t index = mTracks.indexOfKey(trackIndex); |
| CHECK_GE(index, 0); |
| |
| const sp<Converter> &converter = |
| mTracks.valueAt(index)->converter(); |
| looper()->unregisterHandler(converter->id()); |
| |
| mTracks.removeItemsAt(index); |
| |
| if (mTracks.isEmpty()) { |
| ALOGI("Reached EOS"); |
| } |
| } else { |
| CHECK_EQ(what, Converter::kWhatError); |
| |
| status_t err; |
| CHECK(msg->findInt32("err", &err)); |
| |
| ALOGE("converter signaled error %d", err); |
| |
| notifySessionDead(); |
| } |
| break; |
| } |
| |
| case kWhatSenderNotify: |
| { |
| int32_t what; |
| CHECK(msg->findInt32("what", &what)); |
| |
| if (what == Sender::kWhatInitDone) { |
| onFinishPlay2(); |
| } else if (what == Sender::kWhatSessionDead) { |
| notifySessionDead(); |
| } else { |
| TRESPASS(); |
| } |
| |
| break; |
| } |
| |
| case kWhatFinishPlay: |
| { |
| onFinishPlay(); |
| break; |
| } |
| |
| case kWhatTrackNotify: |
| { |
| int32_t what; |
| CHECK(msg->findInt32("what", &what)); |
| |
| size_t trackIndex; |
| CHECK(msg->findSize("trackIndex", &trackIndex)); |
| |
| if (what == Track::kWhatStopped) { |
| ALOGI("Track %d stopped", trackIndex); |
| |
| sp<Track> track = mTracks.valueFor(trackIndex); |
| looper()->unregisterHandler(track->id()); |
| mTracks.removeItem(trackIndex); |
| track.clear(); |
| |
| if (!mTracks.isEmpty()) { |
| ALOGI("not all tracks are stopped yet"); |
| break; |
| } |
| |
| mSenderLooper->unregisterHandler(mSender->id()); |
| mSender.clear(); |
| mSenderLooper.clear(); |
| |
| mPacketizer.clear(); |
| |
| sp<AMessage> notify = mNotify->dup(); |
| notify->setInt32("what", kWhatSessionDestroyed); |
| notify->post(); |
| } |
| break; |
| } |
| |
| case kWhatPacketize: |
| { |
| size_t trackIndex; |
| CHECK(msg->findSize("trackIndex", &trackIndex)); |
| |
| sp<ABuffer> accessUnit; |
| CHECK(msg->findBuffer("accessUnit", &accessUnit)); |
| |
| #if 0 |
| if ((ssize_t)trackIndex == mVideoTrackIndex) { |
| int64_t nowUs = ALooper::GetNowUs(); |
| static int64_t prevNowUs = 0ll; |
| |
| ALOGI("sending AU, dNowUs=%lld us", nowUs - prevNowUs); |
| |
| prevNowUs = nowUs; |
| } |
| #endif |
| |
| break; |
| } |
| |
| default: |
| TRESPASS(); |
| } |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::setupPacketizer(bool usePCMAudio) { |
| mPacketizer = new TSPacketizer; |
| |
| status_t err = addVideoSource(); |
| |
| if (err != OK) { |
| return err; |
| } |
| |
| return addAudioSource(usePCMAudio); |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::addSource( |
| bool isVideo, const sp<MediaSource> &source, bool isRepeaterSource, |
| bool usePCMAudio, size_t *numInputBuffers) { |
| CHECK(!usePCMAudio || !isVideo); |
| CHECK(!isRepeaterSource || isVideo); |
| |
| sp<ALooper> pullLooper = new ALooper; |
| pullLooper->setName("pull_looper"); |
| |
| pullLooper->start( |
| false /* runOnCallingThread */, |
| false /* canCallJava */, |
| PRIORITY_AUDIO); |
| |
| sp<ALooper> codecLooper = new ALooper; |
| codecLooper->setName("codec_looper"); |
| |
| codecLooper->start( |
| false /* runOnCallingThread */, |
| false /* canCallJava */, |
| PRIORITY_AUDIO); |
| |
| size_t trackIndex; |
| |
| sp<AMessage> notify; |
| |
| trackIndex = mTracks.size(); |
| |
| sp<AMessage> format; |
| status_t err = convertMetaDataToMessage(source->getFormat(), &format); |
| CHECK_EQ(err, (status_t)OK); |
| |
| if (isVideo) { |
| format->setInt32("store-metadata-in-buffers", true); |
| |
| format->setInt32( |
| "color-format", OMX_COLOR_FormatAndroidOpaque); |
| } |
| |
| notify = new AMessage(kWhatConverterNotify, id()); |
| notify->setSize("trackIndex", trackIndex); |
| |
| sp<Converter> converter = |
| new Converter(notify, codecLooper, format, usePCMAudio); |
| |
| if (converter->initCheck() != OK) { |
| return converter->initCheck(); |
| } |
| |
| looper()->registerHandler(converter); |
| |
| notify = new AMessage(Converter::kWhatMediaPullerNotify, converter->id()); |
| notify->setSize("trackIndex", trackIndex); |
| |
| sp<MediaPuller> puller = new MediaPuller(source, notify); |
| pullLooper->registerHandler(puller); |
| |
| if (numInputBuffers != NULL) { |
| *numInputBuffers = converter->getInputBufferCount(); |
| } |
| |
| notify = new AMessage(kWhatTrackNotify, id()); |
| notify->setSize("trackIndex", trackIndex); |
| |
| sp<Track> track = new Track( |
| notify, pullLooper, codecLooper, puller, converter); |
| |
| if (isRepeaterSource) { |
| track->setRepeaterSource(static_cast<RepeaterSource *>(source.get())); |
| } |
| |
| looper()->registerHandler(track); |
| |
| mTracks.add(trackIndex, track); |
| |
| if (isVideo) { |
| mVideoTrackIndex = trackIndex; |
| } |
| |
| return OK; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::addVideoSource() { |
| sp<SurfaceMediaSource> source = new SurfaceMediaSource(width(), height()); |
| |
| source->setUseAbsoluteTimestamps(); |
| |
| #if 1 |
| sp<RepeaterSource> videoSource = |
| new RepeaterSource(source, 30.0 /* rateHz */); |
| #endif |
| |
| #if 1 |
| size_t numInputBuffers; |
| status_t err = addSource( |
| true /* isVideo */, videoSource, true /* isRepeaterSource */, |
| false /* usePCMAudio */, &numInputBuffers); |
| #else |
| size_t numInputBuffers; |
| status_t err = addSource( |
| true /* isVideo */, source, false /* isRepeaterSource */, |
| false /* usePCMAudio */, &numInputBuffers); |
| #endif |
| |
| if (err != OK) { |
| return err; |
| } |
| |
| err = source->setMaxAcquiredBufferCount(numInputBuffers); |
| CHECK_EQ(err, (status_t)OK); |
| |
| mBufferQueue = source->getBufferQueue(); |
| |
| return OK; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::addAudioSource(bool usePCMAudio) { |
| sp<AudioSource> audioSource = new AudioSource( |
| AUDIO_SOURCE_REMOTE_SUBMIX, |
| 48000 /* sampleRate */, |
| 2 /* channelCount */); |
| |
| if (audioSource->initCheck() == OK) { |
| return addSource( |
| false /* isVideo */, audioSource, false /* isRepeaterSource */, |
| usePCMAudio, NULL /* numInputBuffers */); |
| } |
| |
| ALOGW("Unable to instantiate audio source"); |
| |
| return OK; |
| } |
| |
| sp<ISurfaceTexture> WifiDisplaySource::PlaybackSession::getSurfaceTexture() { |
| return mBufferQueue; |
| } |
| |
| int32_t WifiDisplaySource::PlaybackSession::width() const { |
| return 1280; |
| } |
| |
| int32_t WifiDisplaySource::PlaybackSession::height() const { |
| return 720; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::requestIDRFrame() { |
| for (size_t i = 0; i < mTracks.size(); ++i) { |
| const sp<Track> &track = mTracks.valueAt(i); |
| |
| track->requestIDRFrame(); |
| } |
| } |
| |
| bool WifiDisplaySource::PlaybackSession::allTracksHavePacketizerIndex() { |
| if (mAllTracksHavePacketizerIndex) { |
| return true; |
| } |
| |
| for (size_t i = 0; i < mTracks.size(); ++i) { |
| if (mTracks.valueAt(i)->packetizerTrackIndex() < 0) { |
| return false; |
| } |
| } |
| |
| mAllTracksHavePacketizerIndex = true; |
| |
| return true; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::packetizeAccessUnit( |
| size_t trackIndex, const sp<ABuffer> &accessUnit, |
| sp<ABuffer> *packets) { |
| const sp<Track> &track = mTracks.valueFor(trackIndex); |
| |
| uint32_t flags = 0; |
| |
| bool isHDCPEncrypted = false; |
| uint64_t inputCTR; |
| uint8_t HDCP_private_data[16]; |
| if (mHDCP != NULL && !track->isAudio()) { |
| isHDCPEncrypted = true; |
| |
| status_t err = mHDCP->encrypt( |
| accessUnit->data(), accessUnit->size(), |
| trackIndex /* streamCTR */, |
| &inputCTR, |
| accessUnit->data()); |
| |
| if (err != OK) { |
| ALOGE("Failed to HDCP-encrypt media data (err %d)", |
| err); |
| |
| return err; |
| } |
| |
| HDCP_private_data[0] = 0x00; |
| |
| HDCP_private_data[1] = |
| (((trackIndex >> 30) & 3) << 1) | 1; |
| |
| HDCP_private_data[2] = (trackIndex >> 22) & 0xff; |
| |
| HDCP_private_data[3] = |
| (((trackIndex >> 15) & 0x7f) << 1) | 1; |
| |
| HDCP_private_data[4] = (trackIndex >> 7) & 0xff; |
| |
| HDCP_private_data[5] = |
| ((trackIndex & 0x7f) << 1) | 1; |
| |
| HDCP_private_data[6] = 0x00; |
| |
| HDCP_private_data[7] = |
| (((inputCTR >> 60) & 0x0f) << 1) | 1; |
| |
| HDCP_private_data[8] = (inputCTR >> 52) & 0xff; |
| |
| HDCP_private_data[9] = |
| (((inputCTR >> 45) & 0x7f) << 1) | 1; |
| |
| HDCP_private_data[10] = (inputCTR >> 37) & 0xff; |
| |
| HDCP_private_data[11] = |
| (((inputCTR >> 30) & 0x7f) << 1) | 1; |
| |
| HDCP_private_data[12] = (inputCTR >> 22) & 0xff; |
| |
| HDCP_private_data[13] = |
| (((inputCTR >> 15) & 0x7f) << 1) | 1; |
| |
| HDCP_private_data[14] = (inputCTR >> 7) & 0xff; |
| |
| HDCP_private_data[15] = |
| ((inputCTR & 0x7f) << 1) | 1; |
| |
| #if 0 |
| ALOGI("HDCP_private_data:"); |
| hexdump(HDCP_private_data, sizeof(HDCP_private_data)); |
| |
| ABitReader br(HDCP_private_data, sizeof(HDCP_private_data)); |
| CHECK_EQ(br.getBits(13), 0); |
| CHECK_EQ(br.getBits(2), (trackIndex >> 30) & 3); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(15), (trackIndex >> 15) & 0x7fff); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(15), trackIndex & 0x7fff); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(11), 0); |
| CHECK_EQ(br.getBits(4), (inputCTR >> 60) & 0xf); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(15), (inputCTR >> 45) & 0x7fff); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(15), (inputCTR >> 30) & 0x7fff); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(15), (inputCTR >> 15) & 0x7fff); |
| CHECK_EQ(br.getBits(1), 1u); |
| CHECK_EQ(br.getBits(15), inputCTR & 0x7fff); |
| CHECK_EQ(br.getBits(1), 1u); |
| #endif |
| |
| flags |= TSPacketizer::IS_ENCRYPTED; |
| } |
| |
| int64_t timeUs = ALooper::GetNowUs(); |
| if (mPrevTimeUs < 0ll || mPrevTimeUs + 100000ll <= timeUs) { |
| flags |= TSPacketizer::EMIT_PCR; |
| flags |= TSPacketizer::EMIT_PAT_AND_PMT; |
| |
| mPrevTimeUs = timeUs; |
| } |
| |
| mPacketizer->packetize( |
| track->packetizerTrackIndex(), accessUnit, packets, flags, |
| !isHDCPEncrypted ? NULL : HDCP_private_data, |
| !isHDCPEncrypted ? 0 : sizeof(HDCP_private_data), |
| track->isAudio() ? 2 : 0 /* numStuffingBytes */); |
| |
| return OK; |
| } |
| |
| status_t WifiDisplaySource::PlaybackSession::packetizeQueuedAccessUnits() { |
| for (;;) { |
| bool gotMoreData = false; |
| for (size_t i = 0; i < mTracks.size(); ++i) { |
| size_t trackIndex = mTracks.keyAt(i); |
| const sp<Track> &track = mTracks.valueAt(i); |
| |
| sp<ABuffer> accessUnit = track->dequeueAccessUnit(); |
| if (accessUnit != NULL) { |
| track->queueOutputBuffer(accessUnit); |
| gotMoreData = true; |
| } |
| } |
| |
| if (!gotMoreData) { |
| break; |
| } |
| } |
| |
| return OK; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::notifySessionDead() { |
| // Inform WifiDisplaySource of our premature death (wish). |
| sp<AMessage> notify = mNotify->dup(); |
| notify->setInt32("what", kWhatSessionDead); |
| notify->post(); |
| |
| mWeAreDead = true; |
| } |
| |
| void WifiDisplaySource::PlaybackSession::drainAccessUnits() { |
| ALOGV("audio/video has %d/%d buffers ready.", |
| mTracks.valueFor(1)->countQueuedOutputBuffers(), |
| mTracks.valueFor(0)->countQueuedOutputBuffers()); |
| |
| while (drainAccessUnit()) { |
| } |
| } |
| |
| bool WifiDisplaySource::PlaybackSession::drainAccessUnit() { |
| ssize_t minTrackIndex = -1; |
| int64_t minTimeUs = -1ll; |
| |
| for (size_t i = 0; i < mTracks.size(); ++i) { |
| const sp<Track> &track = mTracks.valueAt(i); |
| |
| int64_t timeUs; |
| if (track->hasOutputBuffer(&timeUs)) { |
| if (minTrackIndex < 0 || timeUs < minTimeUs) { |
| minTrackIndex = mTracks.keyAt(i); |
| minTimeUs = timeUs; |
| } |
| } else if (!track->isSuspended()) { |
| // We still consider this track "live", so it should keep |
| // delivering output data whose time stamps we'll have to |
| // consider for proper interleaving. |
| return false; |
| } |
| } |
| |
| if (minTrackIndex < 0) { |
| return false; |
| } |
| |
| const sp<Track> &track = mTracks.valueFor(minTrackIndex); |
| sp<ABuffer> accessUnit = track->dequeueOutputBuffer(); |
| |
| sp<ABuffer> packets; |
| status_t err = packetizeAccessUnit(minTrackIndex, accessUnit, &packets); |
| |
| if (err != OK) { |
| notifySessionDead(); |
| } |
| |
| if ((ssize_t)minTrackIndex == mVideoTrackIndex) { |
| packets->meta()->setInt32("isVideo", 1); |
| } |
| mSender->queuePackets(minTimeUs, packets); |
| |
| return true; |
| } |
| |
| } // namespace android |
| |
