media/libmediaplayerservice/nuplayer/RTSPSource.cpp - platform/frameworks/av - Git at Google

 /*
  * Copyright (C) 2010 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 "RTSPSource"
 #include <utils/Log.h>

 #include "RTSPSource.h"

 #include "AnotherPacketSource.h"
 #include "MyHandler.h"

 #include <media/stagefright/MetaData.h>

 namespace android {

 NuPlayer::RTSPSource::RTSPSource(
         const char *url,
         const KeyedVector<String8, String8> *headers,
         bool uidValid,
         uid_t uid)
     : mURL(url),
       mUIDValid(uidValid),
       mUID(uid),
       mFlags(0),
       mState(DISCONNECTED),
       mFinalResult(OK),
       mDisconnectReplyID(0),
       mSeekGeneration(0) {
     if (headers) {
         mExtraHeaders = *headers;

         ssize_t index =
             mExtraHeaders.indexOfKey(String8("x-hide-urls-from-log"));

         if (index >= 0) {
             mFlags |= kFlagIncognito;

             mExtraHeaders.removeItemsAt(index);
         }
     }
 }

 NuPlayer::RTSPSource::~RTSPSource() {
     if (mLooper != NULL) {
         mLooper->stop();
     }
 }

 void NuPlayer::RTSPSource::start() {
     if (mLooper == NULL) {
         mLooper = new ALooper;
         mLooper->setName("rtsp");
         mLooper->start();

         mReflector = new AHandlerReflector<RTSPSource>(this);
         mLooper->registerHandler(mReflector);
     }

     CHECK(mHandler == NULL);

     sp<AMessage> notify = new AMessage(kWhatNotify, mReflector->id());

     mHandler = new MyHandler(mURL.c_str(), notify, mUIDValid, mUID);
     mLooper->registerHandler(mHandler);

     CHECK_EQ(mState, (int)DISCONNECTED);
     mState = CONNECTING;

     mHandler->connect();
 }

 void NuPlayer::RTSPSource::stop() {
     sp<AMessage> msg = new AMessage(kWhatDisconnect, mReflector->id());

     sp<AMessage> dummy;
     msg->postAndAwaitResponse(&dummy);
 }

 status_t NuPlayer::RTSPSource::feedMoreTSData() {
     return mFinalResult;
 }

 sp<MetaData> NuPlayer::RTSPSource::getFormat(bool audio) {
     sp<AnotherPacketSource> source = getSource(audio);

     if (source == NULL) {
         return NULL;
     }

     return source->getFormat();
 }

 status_t NuPlayer::RTSPSource::dequeueAccessUnit(
         bool audio, sp<ABuffer> *accessUnit) {
     sp<AnotherPacketSource> source = getSource(audio);

     if (source == NULL) {
         return -EWOULDBLOCK;
     }

     status_t finalResult;
     if (!source->hasBufferAvailable(&finalResult)) {
         return finalResult == OK ? -EWOULDBLOCK : finalResult;
     }

     return source->dequeueAccessUnit(accessUnit);
 }

 sp<AnotherPacketSource> NuPlayer::RTSPSource::getSource(bool audio) {
     return audio ? mAudioTrack : mVideoTrack;
 }

 status_t NuPlayer::RTSPSource::getDuration(int64_t *durationUs) {
     *durationUs = 0ll;

     int64_t audioDurationUs;
     if (mAudioTrack != NULL
             && mAudioTrack->getFormat()->findInt64(
                 kKeyDuration, &audioDurationUs)
             && audioDurationUs > *durationUs) {
         *durationUs = audioDurationUs;
     }

     int64_t videoDurationUs;
     if (mVideoTrack != NULL
             && mVideoTrack->getFormat()->findInt64(
                 kKeyDuration, &videoDurationUs)
             && videoDurationUs > *durationUs) {
         *durationUs = videoDurationUs;
     }

     return OK;
 }

 status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs) {
     sp<AMessage> msg = new AMessage(kWhatPerformSeek, mReflector->id());
     msg->setInt32("generation", ++mSeekGeneration);
     msg->setInt64("timeUs", seekTimeUs);
     msg->post(200000ll);

     return OK;
 }

 void NuPlayer::RTSPSource::performSeek(int64_t seekTimeUs) {
     if (mState != CONNECTED) {
         return;
     }

     mState = SEEKING;
     mHandler->seek(seekTimeUs);
 }

 bool NuPlayer::RTSPSource::isSeekable() {
     return true;
 }

 void NuPlayer::RTSPSource::onMessageReceived(const sp<AMessage> &msg) {
     if (msg->what() == kWhatDisconnect) {
         uint32_t replyID;
         CHECK(msg->senderAwaitsResponse(&replyID));

         mDisconnectReplyID = replyID;
         finishDisconnectIfPossible();
         return;
     } else if (msg->what() == kWhatPerformSeek) {
         int32_t generation;
         CHECK(msg->findInt32("generation", &generation));

         if (generation != mSeekGeneration) {
             // obsolete.
             return;
         }

         int64_t seekTimeUs;
         CHECK(msg->findInt64("timeUs", &seekTimeUs));

         performSeek(seekTimeUs);
         return;
     }

     CHECK_EQ(msg->what(), (int)kWhatNotify);

     int32_t what;
     CHECK(msg->findInt32("what", &what));

     switch (what) {
         case MyHandler::kWhatConnected:
             onConnected();
             break;

         case MyHandler::kWhatDisconnected:
             onDisconnected(msg);
             break;

         case MyHandler::kWhatSeekDone:
         {
             mState = CONNECTED;
             break;
         }

         case MyHandler::kWhatAccessUnit:
         {
             size_t trackIndex;
             CHECK(msg->findSize("trackIndex", &trackIndex));
             CHECK_LT(trackIndex, mTracks.size());

             sp<RefBase> obj;
             CHECK(msg->findObject("accessUnit", &obj));

             sp<ABuffer> accessUnit = static_cast<ABuffer *>(obj.get());

             int32_t damaged;
             if (accessUnit->meta()->findInt32("damaged", &damaged)
                     && damaged) {
                 LOGI("dropping damaged access unit.");
                 break;
             }

             const TrackInfo &info = mTracks.editItemAt(trackIndex);
             sp<AnotherPacketSource> source = info.mSource;
             if (source != NULL) {
 #if 1
                 uint32_t rtpTime;
                 CHECK(accessUnit->meta()->findInt32("rtp-time", (int32_t *)&rtpTime));

                 int64_t nptUs =
                     ((double)rtpTime - (double)info.mRTPTime)
                         / info.mTimeScale
                         * 1000000ll
                         + info.mNormalPlaytimeUs;

                 accessUnit->meta()->setInt64("timeUs", nptUs);
 #endif

                 source->queueAccessUnit(accessUnit);
             }
             break;
         }

         case MyHandler::kWhatEOS:
         {
             size_t trackIndex;
             CHECK(msg->findSize("trackIndex", &trackIndex));
             CHECK_LT(trackIndex, mTracks.size());

             int32_t finalResult;
             CHECK(msg->findInt32("finalResult", &finalResult));
             CHECK_NE(finalResult, (status_t)OK);

             TrackInfo *info = &mTracks.editItemAt(trackIndex);
             sp<AnotherPacketSource> source = info->mSource;
             if (source != NULL) {
                 source->signalEOS(finalResult);
             }

             break;
         }

         case MyHandler::kWhatSeekDiscontinuity:
         {
             size_t trackIndex;
             CHECK(msg->findSize("trackIndex", &trackIndex));
             CHECK_LT(trackIndex, mTracks.size());

             TrackInfo *info = &mTracks.editItemAt(trackIndex);
             sp<AnotherPacketSource> source = info->mSource;
             if (source != NULL) {
                 source->queueDiscontinuity(ATSParser::DISCONTINUITY_SEEK, NULL);
             }

             break;
         }

         case MyHandler::kWhatNormalPlayTimeMapping:
         {
             size_t trackIndex;
             CHECK(msg->findSize("trackIndex", &trackIndex));
             CHECK_LT(trackIndex, mTracks.size());

             uint32_t rtpTime;
             CHECK(msg->findInt32("rtpTime", (int32_t *)&rtpTime));

             int64_t nptUs;
             CHECK(msg->findInt64("nptUs", &nptUs));

             TrackInfo *info = &mTracks.editItemAt(trackIndex);
             info->mRTPTime = rtpTime;
             info->mNormalPlaytimeUs = nptUs;
             break;
         }

         default:
             TRESPASS();
     }
 }

 void NuPlayer::RTSPSource::onConnected() {
     CHECK(mAudioTrack == NULL);
     CHECK(mVideoTrack == NULL);

     size_t numTracks = mHandler->countTracks();
     for (size_t i = 0; i < numTracks; ++i) {
         int32_t timeScale;
         sp<MetaData> format = mHandler->getTrackFormat(i, &timeScale);

         const char *mime;
         CHECK(format->findCString(kKeyMIMEType, &mime));

         bool isAudio = !strncasecmp(mime, "audio/", 6);
         bool isVideo = !strncasecmp(mime, "video/", 6);

         TrackInfo info;
         info.mTimeScale = timeScale;
         info.mRTPTime = 0;
         info.mNormalPlaytimeUs = 0ll;

         if ((isAudio && mAudioTrack == NULL)
                 || (isVideo && mVideoTrack == NULL)) {
             sp<AnotherPacketSource> source = new AnotherPacketSource(format);

             if (isAudio) {
                 mAudioTrack = source;
             } else {
                 mVideoTrack = source;
             }

             info.mSource = source;
         }

         mTracks.push(info);
     }

     mState = CONNECTED;
 }

 void NuPlayer::RTSPSource::onDisconnected(const sp<AMessage> &msg) {
     status_t err;
     CHECK(msg->findInt32("result", &err));
     CHECK_NE(err, (status_t)OK);

     mLooper->unregisterHandler(mHandler->id());
     mHandler.clear();

     mState = DISCONNECTED;
     mFinalResult = err;

     if (mDisconnectReplyID != 0) {
         finishDisconnectIfPossible();
     }
 }

 void NuPlayer::RTSPSource::finishDisconnectIfPossible() {
     if (mState != DISCONNECTED) {
         mHandler->disconnect();
         return;
     }

     (new AMessage)->postReply(mDisconnectReplyID);
     mDisconnectReplyID = 0;
 }

 }  // namespace android
	/*
	* Copyright (C) 2010 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 "RTSPSource"
	#include <utils/Log.h>

	#include "RTSPSource.h"

	#include "AnotherPacketSource.h"
	#include "MyHandler.h"

	#include <media/stagefright/MetaData.h>

	namespace android {

	NuPlayer::RTSPSource::RTSPSource(
	const char *url,
	const KeyedVector<String8, String8> *headers,
	bool uidValid,
	uid_t uid)
	: mURL(url),
	mUIDValid(uidValid),
	mUID(uid),
	mFlags(0),
	mState(DISCONNECTED),
	mFinalResult(OK),
	mDisconnectReplyID(0),
	mSeekGeneration(0) {
	if (headers) {
	mExtraHeaders = *headers;

	ssize_t index =
	mExtraHeaders.indexOfKey(String8("x-hide-urls-from-log"));

	if (index >= 0) {
	mFlags \|= kFlagIncognito;

	mExtraHeaders.removeItemsAt(index);
	}
	}
	}

	NuPlayer::RTSPSource::~RTSPSource() {
	if (mLooper != NULL) {
	mLooper->stop();
	}
	}

	void NuPlayer::RTSPSource::start() {
	if (mLooper == NULL) {
	mLooper = new ALooper;
	mLooper->setName("rtsp");
	mLooper->start();

	mReflector = new AHandlerReflector<RTSPSource>(this);
	mLooper->registerHandler(mReflector);
	}

	CHECK(mHandler == NULL);

	sp<AMessage> notify = new AMessage(kWhatNotify, mReflector->id());

	mHandler = new MyHandler(mURL.c_str(), notify, mUIDValid, mUID);
	mLooper->registerHandler(mHandler);

	CHECK_EQ(mState, (int)DISCONNECTED);
	mState = CONNECTING;

	mHandler->connect();
	}

	void NuPlayer::RTSPSource::stop() {
	sp<AMessage> msg = new AMessage(kWhatDisconnect, mReflector->id());

	sp<AMessage> dummy;
	msg->postAndAwaitResponse(&dummy);
	}

	status_t NuPlayer::RTSPSource::feedMoreTSData() {
	return mFinalResult;
	}

	sp<MetaData> NuPlayer::RTSPSource::getFormat(bool audio) {
	sp<AnotherPacketSource> source = getSource(audio);

	if (source == NULL) {
	return NULL;
	}

	return source->getFormat();
	}

	status_t NuPlayer::RTSPSource::dequeueAccessUnit(
	bool audio, sp<ABuffer> *accessUnit) {
	sp<AnotherPacketSource> source = getSource(audio);

	if (source == NULL) {
	return -EWOULDBLOCK;
	}

	status_t finalResult;
	if (!source->hasBufferAvailable(&finalResult)) {
	return finalResult == OK ? -EWOULDBLOCK : finalResult;
	}

	return source->dequeueAccessUnit(accessUnit);
	}

	sp<AnotherPacketSource> NuPlayer::RTSPSource::getSource(bool audio) {
	return audio ? mAudioTrack : mVideoTrack;
	}

	status_t NuPlayer::RTSPSource::getDuration(int64_t *durationUs) {
	*durationUs = 0ll;

	int64_t audioDurationUs;
	if (mAudioTrack != NULL
	&& mAudioTrack->getFormat()->findInt64(
	kKeyDuration, &audioDurationUs)
	&& audioDurationUs > *durationUs) {
	*durationUs = audioDurationUs;
	}

	int64_t videoDurationUs;
	if (mVideoTrack != NULL
	&& mVideoTrack->getFormat()->findInt64(
	kKeyDuration, &videoDurationUs)
	&& videoDurationUs > *durationUs) {
	*durationUs = videoDurationUs;
	}

	return OK;
	}

	status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs) {
	sp<AMessage> msg = new AMessage(kWhatPerformSeek, mReflector->id());
	msg->setInt32("generation", ++mSeekGeneration);
	msg->setInt64("timeUs", seekTimeUs);
	msg->post(200000ll);

	return OK;
	}

	void NuPlayer::RTSPSource::performSeek(int64_t seekTimeUs) {
	if (mState != CONNECTED) {
	return;
	}

	mState = SEEKING;
	mHandler->seek(seekTimeUs);
	}

	bool NuPlayer::RTSPSource::isSeekable() {
	return true;
	}

	void NuPlayer::RTSPSource::onMessageReceived(const sp<AMessage> &msg) {
	if (msg->what() == kWhatDisconnect) {
	uint32_t replyID;
	CHECK(msg->senderAwaitsResponse(&replyID));

	mDisconnectReplyID = replyID;
	finishDisconnectIfPossible();
	return;
	} else if (msg->what() == kWhatPerformSeek) {
	int32_t generation;
	CHECK(msg->findInt32("generation", &generation));

	if (generation != mSeekGeneration) {
	// obsolete.
	return;
	}

	int64_t seekTimeUs;
	CHECK(msg->findInt64("timeUs", &seekTimeUs));

	performSeek(seekTimeUs);
	return;
	}

	CHECK_EQ(msg->what(), (int)kWhatNotify);

	int32_t what;
	CHECK(msg->findInt32("what", &what));

	switch (what) {
	case MyHandler::kWhatConnected:
	onConnected();
	break;

	case MyHandler::kWhatDisconnected:
	onDisconnected(msg);
	break;

	case MyHandler::kWhatSeekDone:
	{
	mState = CONNECTED;
	break;
	}

	case MyHandler::kWhatAccessUnit:
	{
	size_t trackIndex;
	CHECK(msg->findSize("trackIndex", &trackIndex));
	CHECK_LT(trackIndex, mTracks.size());

	sp<RefBase> obj;
	CHECK(msg->findObject("accessUnit", &obj));

	sp<ABuffer> accessUnit = static_cast<ABuffer *>(obj.get());

	int32_t damaged;
	if (accessUnit->meta()->findInt32("damaged", &damaged)
	&& damaged) {
	LOGI("dropping damaged access unit.");
	break;
	}

	const TrackInfo &info = mTracks.editItemAt(trackIndex);
	sp<AnotherPacketSource> source = info.mSource;
	if (source != NULL) {
	#if 1
	uint32_t rtpTime;
	CHECK(accessUnit->meta()->findInt32("rtp-time", (int32_t *)&rtpTime));

	int64_t nptUs =
	((double)rtpTime - (double)info.mRTPTime)
	/ info.mTimeScale
	* 1000000ll
	+ info.mNormalPlaytimeUs;

	accessUnit->meta()->setInt64("timeUs", nptUs);
	#endif

	source->queueAccessUnit(accessUnit);
	}
	break;
	}

	case MyHandler::kWhatEOS:
	{
	size_t trackIndex;
	CHECK(msg->findSize("trackIndex", &trackIndex));
	CHECK_LT(trackIndex, mTracks.size());

	int32_t finalResult;
	CHECK(msg->findInt32("finalResult", &finalResult));
	CHECK_NE(finalResult, (status_t)OK);

	TrackInfo *info = &mTracks.editItemAt(trackIndex);
	sp<AnotherPacketSource> source = info->mSource;
	if (source != NULL) {
	source->signalEOS(finalResult);
	}

	break;
	}

	case MyHandler::kWhatSeekDiscontinuity:
	{
	size_t trackIndex;
	CHECK(msg->findSize("trackIndex", &trackIndex));
	CHECK_LT(trackIndex, mTracks.size());

	TrackInfo *info = &mTracks.editItemAt(trackIndex);
	sp<AnotherPacketSource> source = info->mSource;
	if (source != NULL) {
	source->queueDiscontinuity(ATSParser::DISCONTINUITY_SEEK, NULL);
	}

	break;
	}

	case MyHandler::kWhatNormalPlayTimeMapping:
	{
	size_t trackIndex;
	CHECK(msg->findSize("trackIndex", &trackIndex));
	CHECK_LT(trackIndex, mTracks.size());

	uint32_t rtpTime;
	CHECK(msg->findInt32("rtpTime", (int32_t *)&rtpTime));

	int64_t nptUs;
	CHECK(msg->findInt64("nptUs", &nptUs));

	TrackInfo *info = &mTracks.editItemAt(trackIndex);
	info->mRTPTime = rtpTime;
	info->mNormalPlaytimeUs = nptUs;
	break;
	}

	default:
	TRESPASS();
	}
	}

	void NuPlayer::RTSPSource::onConnected() {
	CHECK(mAudioTrack == NULL);
	CHECK(mVideoTrack == NULL);

	size_t numTracks = mHandler->countTracks();
	for (size_t i = 0; i < numTracks; ++i) {
	int32_t timeScale;
	sp<MetaData> format = mHandler->getTrackFormat(i, &timeScale);

	const char *mime;
	CHECK(format->findCString(kKeyMIMEType, &mime));

	bool isAudio = !strncasecmp(mime, "audio/", 6);
	bool isVideo = !strncasecmp(mime, "video/", 6);

	TrackInfo info;
	info.mTimeScale = timeScale;
	info.mRTPTime = 0;
	info.mNormalPlaytimeUs = 0ll;

	if ((isAudio && mAudioTrack == NULL)
	\|\| (isVideo && mVideoTrack == NULL)) {
	sp<AnotherPacketSource> source = new AnotherPacketSource(format);

	if (isAudio) {
	mAudioTrack = source;
	} else {
	mVideoTrack = source;
	}

	info.mSource = source;
	}

	mTracks.push(info);
	}

	mState = CONNECTED;
	}

	void NuPlayer::RTSPSource::onDisconnected(const sp<AMessage> &msg) {
	status_t err;
	CHECK(msg->findInt32("result", &err));
	CHECK_NE(err, (status_t)OK);

	mLooper->unregisterHandler(mHandler->id());
	mHandler.clear();

	mState = DISCONNECTED;
	mFinalResult = err;

	if (mDisconnectReplyID != 0) {
	finishDisconnectIfPossible();
	}
	}

	void NuPlayer::RTSPSource::finishDisconnectIfPossible() {
	if (mState != DISCONNECTED) {
	mHandler->disconnect();
	return;
	}

	(new AMessage)->postReply(mDisconnectReplyID);
	mDisconnectReplyID = 0;
	}

	} // namespace android