| /* |
| * Copyright (C) 2009 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 "MPEG4Writer" |
| |
| #include <algorithm> |
| |
| #include <arpa/inet.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <pthread.h> |
| #include <sys/prctl.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include <utils/Log.h> |
| |
| #include <functional> |
| |
| #include <media/MediaSource.h> |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/foundation/AMessage.h> |
| #include <media/stagefright/foundation/AUtils.h> |
| #include <media/stagefright/foundation/ByteUtils.h> |
| #include <media/stagefright/foundation/ColorUtils.h> |
| #include <media/stagefright/foundation/avc_utils.h> |
| #include <media/stagefright/MPEG4Writer.h> |
| #include <media/stagefright/MediaBuffer.h> |
| #include <media/stagefright/MetaData.h> |
| #include <media/stagefright/MediaDefs.h> |
| #include <media/stagefright/MediaErrors.h> |
| #include <media/stagefright/Utils.h> |
| #include <media/mediarecorder.h> |
| #include <cutils/properties.h> |
| |
| #include "include/ESDS.h" |
| #include "include/HevcUtils.h" |
| |
| #ifndef __predict_false |
| #define __predict_false(exp) __builtin_expect((exp) != 0, 0) |
| #endif |
| |
| #define WARN_UNLESS(condition, message, ...) \ |
| ( (__predict_false(condition)) ? false : ({ \ |
| ALOGW("Condition %s failed " message, #condition, ##__VA_ARGS__); \ |
| true; \ |
| })) |
| |
| namespace android { |
| |
| static const int64_t kMinStreamableFileSizeInBytes = 5 * 1024 * 1024; |
| static const int64_t kMax32BitFileSize = 0x00ffffffffLL; // 2^32-1 : max FAT32 |
| // filesystem file size |
| // used by most SD cards |
| static const uint8_t kNalUnitTypeSeqParamSet = 0x07; |
| static const uint8_t kNalUnitTypePicParamSet = 0x08; |
| static const int64_t kInitialDelayTimeUs = 700000LL; |
| static const int64_t kMaxMetadataSize = 0x4000000LL; // 64MB max per-frame metadata size |
| |
| static const char kMetaKey_Version[] = "com.android.version"; |
| static const char kMetaKey_Manufacturer[] = "com.android.manufacturer"; |
| static const char kMetaKey_Model[] = "com.android.model"; |
| |
| #ifdef SHOW_BUILD |
| static const char kMetaKey_Build[] = "com.android.build"; |
| #endif |
| static const char kMetaKey_CaptureFps[] = "com.android.capture.fps"; |
| static const char kMetaKey_TemporalLayerCount[] = "com.android.video.temporal_layers_count"; |
| |
| static const int kTimestampDebugCount = 10; |
| static const int kItemIdBase = 10000; |
| static const char kExifHeader[] = {'E', 'x', 'i', 'f', '\0', '\0'}; |
| static const int32_t kTiffHeaderOffset = htonl(sizeof(kExifHeader)); |
| |
| static const uint8_t kMandatoryHevcNalUnitTypes[3] = { |
| kHevcNalUnitTypeVps, |
| kHevcNalUnitTypeSps, |
| kHevcNalUnitTypePps, |
| }; |
| static const uint8_t kHevcNalUnitTypes[5] = { |
| kHevcNalUnitTypeVps, |
| kHevcNalUnitTypeSps, |
| kHevcNalUnitTypePps, |
| kHevcNalUnitTypePrefixSei, |
| kHevcNalUnitTypeSuffixSei, |
| }; |
| /* uncomment to include build in meta */ |
| //#define SHOW_MODEL_BUILD 1 |
| |
| class MPEG4Writer::Track { |
| public: |
| Track(MPEG4Writer *owner, const sp<MediaSource> &source, size_t trackId); |
| |
| ~Track(); |
| |
| status_t start(MetaData *params); |
| status_t stop(bool stopSource = true); |
| status_t pause(); |
| bool reachedEOS(); |
| |
| int64_t getDurationUs() const; |
| int64_t getEstimatedTrackSizeBytes() const; |
| int32_t getMetaSizeIncrease(int32_t angle, int32_t trackCount) const; |
| void writeTrackHeader(bool use32BitOffset = true); |
| int64_t getMinCttsOffsetTimeUs(); |
| void bufferChunk(int64_t timestampUs); |
| bool isAvc() const { return mIsAvc; } |
| bool isHevc() const { return mIsHevc; } |
| bool isHeic() const { return mIsHeic; } |
| bool isAudio() const { return mIsAudio; } |
| bool isMPEG4() const { return mIsMPEG4; } |
| bool usePrefix() const { return mIsAvc || mIsHevc || mIsHeic; } |
| bool isExifData(const MediaBufferBase *buffer) const; |
| void addChunkOffset(off64_t offset); |
| void addItemOffsetAndSize(off64_t offset, size_t size, bool isExif); |
| void flushItemRefs(); |
| int32_t getTrackId() const { return mTrackId; } |
| status_t dump(int fd, const Vector<String16>& args) const; |
| static const char *getFourCCForMime(const char *mime); |
| const char *getTrackType() const; |
| void resetInternal(); |
| |
| private: |
| enum { |
| kMaxCttsOffsetTimeUs = 1000000LL, // 1 second |
| kSampleArraySize = 1000, |
| }; |
| |
| // A helper class to handle faster write box with table entries |
| template<class TYPE, unsigned ENTRY_SIZE> |
| // ENTRY_SIZE: # of values in each entry |
| struct ListTableEntries { |
| static_assert(ENTRY_SIZE > 0, "ENTRY_SIZE must be positive"); |
| ListTableEntries(uint32_t elementCapacity) |
| : mElementCapacity(elementCapacity), |
| mTotalNumTableEntries(0), |
| mNumValuesInCurrEntry(0), |
| mCurrTableEntriesElement(NULL) { |
| CHECK_GT(mElementCapacity, 0u); |
| // Ensure no integer overflow on allocation in add(). |
| CHECK_LT(ENTRY_SIZE, UINT32_MAX / mElementCapacity); |
| } |
| |
| // Free the allocated memory. |
| ~ListTableEntries() { |
| while (!mTableEntryList.empty()) { |
| typename List<TYPE *>::iterator it = mTableEntryList.begin(); |
| delete[] (*it); |
| mTableEntryList.erase(it); |
| } |
| } |
| |
| // Replace the value at the given position by the given value. |
| // There must be an existing value at the given position. |
| // @arg value must be in network byte order |
| // @arg pos location the value must be in. |
| void set(const TYPE& value, uint32_t pos) { |
| CHECK_LT(pos, mTotalNumTableEntries * ENTRY_SIZE); |
| |
| typename List<TYPE *>::iterator it = mTableEntryList.begin(); |
| uint32_t iterations = (pos / (mElementCapacity * ENTRY_SIZE)); |
| while (it != mTableEntryList.end() && iterations > 0) { |
| ++it; |
| --iterations; |
| } |
| CHECK(it != mTableEntryList.end()); |
| CHECK_EQ(iterations, 0u); |
| |
| (*it)[(pos % (mElementCapacity * ENTRY_SIZE))] = value; |
| } |
| |
| // Get the value at the given position by the given value. |
| // @arg value the retrieved value at the position in network byte order. |
| // @arg pos location the value must be in. |
| // @return true if a value is found. |
| bool get(TYPE& value, uint32_t pos) const { |
| if (pos >= mTotalNumTableEntries * ENTRY_SIZE) { |
| return false; |
| } |
| |
| typename List<TYPE *>::iterator it = mTableEntryList.begin(); |
| uint32_t iterations = (pos / (mElementCapacity * ENTRY_SIZE)); |
| while (it != mTableEntryList.end() && iterations > 0) { |
| ++it; |
| --iterations; |
| } |
| CHECK(it != mTableEntryList.end()); |
| CHECK_EQ(iterations, 0u); |
| |
| value = (*it)[(pos % (mElementCapacity * ENTRY_SIZE))]; |
| return true; |
| } |
| |
| // adjusts all values by |adjust(value)| |
| void adjustEntries( |
| std::function<void(size_t /* ix */, TYPE(& /* entry */)[ENTRY_SIZE])> update) { |
| size_t nEntries = mTotalNumTableEntries + mNumValuesInCurrEntry / ENTRY_SIZE; |
| size_t ix = 0; |
| for (TYPE *entryArray : mTableEntryList) { |
| size_t num = std::min(nEntries, (size_t)mElementCapacity); |
| for (size_t i = 0; i < num; ++i) { |
| update(ix++, (TYPE(&)[ENTRY_SIZE])(*entryArray)); |
| entryArray += ENTRY_SIZE; |
| } |
| nEntries -= num; |
| } |
| } |
| |
| // Store a single value. |
| // @arg value must be in network byte order. |
| void add(const TYPE& value) { |
| CHECK_LT(mNumValuesInCurrEntry, mElementCapacity); |
| uint32_t nEntries = mTotalNumTableEntries % mElementCapacity; |
| uint32_t nValues = mNumValuesInCurrEntry % ENTRY_SIZE; |
| if (nEntries == 0 && nValues == 0) { |
| mCurrTableEntriesElement = new TYPE[ENTRY_SIZE * mElementCapacity]; |
| CHECK(mCurrTableEntriesElement != NULL); |
| mTableEntryList.push_back(mCurrTableEntriesElement); |
| } |
| |
| uint32_t pos = nEntries * ENTRY_SIZE + nValues; |
| mCurrTableEntriesElement[pos] = value; |
| |
| ++mNumValuesInCurrEntry; |
| if ((mNumValuesInCurrEntry % ENTRY_SIZE) == 0) { |
| ++mTotalNumTableEntries; |
| mNumValuesInCurrEntry = 0; |
| } |
| } |
| |
| // Write out the table entries: |
| // 1. the number of entries goes first |
| // 2. followed by the values in the table enties in order |
| // @arg writer the writer to actual write to the storage |
| void write(MPEG4Writer *writer) const { |
| CHECK_EQ(mNumValuesInCurrEntry % ENTRY_SIZE, 0u); |
| uint32_t nEntries = mTotalNumTableEntries; |
| writer->writeInt32(nEntries); |
| for (typename List<TYPE *>::iterator it = mTableEntryList.begin(); |
| it != mTableEntryList.end(); ++it) { |
| CHECK_GT(nEntries, 0u); |
| if (nEntries >= mElementCapacity) { |
| writer->write(*it, sizeof(TYPE) * ENTRY_SIZE, mElementCapacity); |
| nEntries -= mElementCapacity; |
| } else { |
| writer->write(*it, sizeof(TYPE) * ENTRY_SIZE, nEntries); |
| break; |
| } |
| } |
| } |
| |
| // Return the number of entries in the table. |
| uint32_t count() const { return mTotalNumTableEntries; } |
| |
| private: |
| uint32_t mElementCapacity; // # entries in an element |
| uint32_t mTotalNumTableEntries; |
| uint32_t mNumValuesInCurrEntry; // up to ENTRY_SIZE |
| TYPE *mCurrTableEntriesElement; |
| mutable List<TYPE *> mTableEntryList; |
| |
| DISALLOW_EVIL_CONSTRUCTORS(ListTableEntries); |
| }; |
| |
| |
| |
| MPEG4Writer *mOwner; |
| sp<MetaData> mMeta; |
| sp<MediaSource> mSource; |
| volatile bool mDone; |
| volatile bool mPaused; |
| volatile bool mResumed; |
| volatile bool mStarted; |
| bool mIsAvc; |
| bool mIsHevc; |
| bool mIsAudio; |
| bool mIsVideo; |
| bool mIsHeic; |
| bool mIsMPEG4; |
| bool mGotStartKeyFrame; |
| bool mIsMalformed; |
| int32_t mTrackId; |
| int64_t mTrackDurationUs; |
| int64_t mMaxChunkDurationUs; |
| int64_t mLastDecodingTimeUs; |
| |
| int64_t mEstimatedTrackSizeBytes; |
| int64_t mMdatSizeBytes; |
| int32_t mTimeScale; |
| |
| pthread_t mThread; |
| |
| |
| List<MediaBuffer *> mChunkSamples; |
| |
| bool mSamplesHaveSameSize; |
| ListTableEntries<uint32_t, 1> *mStszTableEntries; |
| |
| ListTableEntries<uint32_t, 1> *mStcoTableEntries; |
| ListTableEntries<off64_t, 1> *mCo64TableEntries; |
| ListTableEntries<uint32_t, 3> *mStscTableEntries; |
| ListTableEntries<uint32_t, 1> *mStssTableEntries; |
| ListTableEntries<uint32_t, 2> *mSttsTableEntries; |
| ListTableEntries<uint32_t, 2> *mCttsTableEntries; |
| |
| int64_t mMinCttsOffsetTimeUs; |
| int64_t mMinCttsOffsetTicks; |
| int64_t mMaxCttsOffsetTicks; |
| |
| // Save the last 10 frames' timestamp and frame type for debug. |
| struct TimestampDebugHelperEntry { |
| int64_t pts; |
| int64_t dts; |
| std::string frameType; |
| }; |
| |
| std::list<TimestampDebugHelperEntry> mTimestampDebugHelper; |
| |
| // Sequence parameter set or picture parameter set |
| struct AVCParamSet { |
| AVCParamSet(uint16_t length, const uint8_t *data) |
| : mLength(length), mData(data) {} |
| |
| uint16_t mLength; |
| const uint8_t *mData; |
| }; |
| List<AVCParamSet> mSeqParamSets; |
| List<AVCParamSet> mPicParamSets; |
| uint8_t mProfileIdc; |
| uint8_t mProfileCompatible; |
| uint8_t mLevelIdc; |
| |
| void *mCodecSpecificData; |
| size_t mCodecSpecificDataSize; |
| bool mGotAllCodecSpecificData; |
| bool mTrackingProgressStatus; |
| |
| bool mReachedEOS; |
| int64_t mStartTimestampUs; |
| int64_t mStartTimeRealUs; |
| int64_t mFirstSampleTimeRealUs; |
| int64_t mPreviousTrackTimeUs; |
| int64_t mTrackEveryTimeDurationUs; |
| |
| int32_t mRotation; |
| |
| Vector<uint16_t> mProperties; |
| ItemRefs mDimgRefs; |
| ItemRefs mCdscRefs; |
| uint16_t mImageItemId; |
| int32_t mIsPrimary; |
| int32_t mWidth, mHeight; |
| int32_t mTileWidth, mTileHeight; |
| int32_t mGridRows, mGridCols; |
| size_t mNumTiles, mTileIndex; |
| |
| // Update the audio track's drift information. |
| void updateDriftTime(const sp<MetaData>& meta); |
| |
| void dumpTimeStamps(); |
| |
| int64_t getStartTimeOffsetTimeUs() const; |
| int32_t getStartTimeOffsetScaledTime() const; |
| |
| static void *ThreadWrapper(void *me); |
| status_t threadEntry(); |
| |
| const uint8_t *parseParamSet( |
| const uint8_t *data, size_t length, int type, size_t *paramSetLen); |
| |
| status_t copyCodecSpecificData(const uint8_t *data, size_t size, size_t minLength = 0); |
| |
| status_t makeAVCCodecSpecificData(const uint8_t *data, size_t size); |
| status_t copyAVCCodecSpecificData(const uint8_t *data, size_t size); |
| status_t parseAVCCodecSpecificData(const uint8_t *data, size_t size); |
| |
| status_t makeHEVCCodecSpecificData(const uint8_t *data, size_t size); |
| status_t copyHEVCCodecSpecificData(const uint8_t *data, size_t size); |
| status_t parseHEVCCodecSpecificData( |
| const uint8_t *data, size_t size, HevcParameterSets ¶mSets); |
| |
| // Track authoring progress status |
| void trackProgressStatus(int64_t timeUs, status_t err = OK); |
| void initTrackingProgressStatus(MetaData *params); |
| |
| void getCodecSpecificDataFromInputFormatIfPossible(); |
| |
| // Determine the track time scale |
| // If it is an audio track, try to use the sampling rate as |
| // the time scale; however, if user chooses the overwrite |
| // value, the user-supplied time scale will be used. |
| void setTimeScale(); |
| |
| // Simple validation on the codec specific data |
| status_t checkCodecSpecificData() const; |
| |
| void updateTrackSizeEstimate(); |
| void addOneStscTableEntry(size_t chunkId, size_t sampleId); |
| void addOneStssTableEntry(size_t sampleId); |
| |
| // Duration is time scale based |
| void addOneSttsTableEntry(size_t sampleCount, int32_t timescaledDur); |
| void addOneCttsTableEntry(size_t sampleCount, int32_t timescaledDur); |
| |
| bool isTrackMalFormed() const; |
| void sendTrackSummary(bool hasMultipleTracks); |
| |
| // Write the boxes |
| void writeStcoBox(bool use32BitOffset); |
| void writeStscBox(); |
| void writeStszBox(); |
| void writeStssBox(); |
| void writeSttsBox(); |
| void writeCttsBox(); |
| void writeD263Box(); |
| void writePaspBox(); |
| void writeAvccBox(); |
| void writeHvccBox(); |
| void writeUrlBox(); |
| void writeDrefBox(); |
| void writeDinfBox(); |
| void writeDamrBox(); |
| void writeMdhdBox(uint32_t now); |
| void writeSmhdBox(); |
| void writeVmhdBox(); |
| void writeNmhdBox(); |
| void writeHdlrBox(); |
| void writeTkhdBox(uint32_t now); |
| void writeColrBox(); |
| void writeMp4aEsdsBox(); |
| void writeMp4vEsdsBox(); |
| void writeAudioFourCCBox(); |
| void writeVideoFourCCBox(); |
| void writeMetadataFourCCBox(); |
| void writeStblBox(bool use32BitOffset); |
| |
| Track(const Track &); |
| Track &operator=(const Track &); |
| }; |
| |
| MPEG4Writer::MPEG4Writer(int fd) { |
| initInternal(fd, true /*isFirstSession*/); |
| } |
| |
| MPEG4Writer::~MPEG4Writer() { |
| reset(); |
| |
| while (!mTracks.empty()) { |
| List<Track *>::iterator it = mTracks.begin(); |
| delete *it; |
| (*it) = NULL; |
| mTracks.erase(it); |
| } |
| mTracks.clear(); |
| |
| if (mNextFd != -1) { |
| close(mNextFd); |
| } |
| } |
| |
| void MPEG4Writer::initInternal(int fd, bool isFirstSession) { |
| ALOGV("initInternal"); |
| mFd = dup(fd); |
| mNextFd = -1; |
| mInitCheck = mFd < 0? NO_INIT: OK; |
| |
| mInterleaveDurationUs = 1000000; |
| |
| mStartTimestampUs = -1ll; |
| mStartTimeOffsetMs = -1; |
| mPaused = false; |
| mStarted = false; |
| mWriterThreadStarted = false; |
| mSendNotify = false; |
| |
| // Reset following variables for all the sessions and they will be |
| // initialized in start(MetaData *param). |
| mIsRealTimeRecording = true; |
| mUse4ByteNalLength = true; |
| mUse32BitOffset = true; |
| mOffset = 0; |
| mMdatOffset = 0; |
| mInMemoryCache = NULL; |
| mInMemoryCacheOffset = 0; |
| mInMemoryCacheSize = 0; |
| mWriteBoxToMemory = false; |
| mFreeBoxOffset = 0; |
| mStreamableFile = false; |
| mTimeScale = -1; |
| mHasFileLevelMeta = false; |
| mPrimaryItemId = 0; |
| mAssociationEntryCount = 0; |
| mNumGrids = 0; |
| mHasRefs = false; |
| |
| // Following variables only need to be set for the first recording session. |
| // And they will stay the same for all the recording sessions. |
| if (isFirstSession) { |
| mMoovExtraSize = 0; |
| mHasMoovBox = false; |
| mMetaKeys = new AMessage(); |
| addDeviceMeta(); |
| mLatitudex10000 = 0; |
| mLongitudex10000 = 0; |
| mAreGeoTagsAvailable = false; |
| mSwitchPending = false; |
| mIsFileSizeLimitExplicitlyRequested = false; |
| } |
| |
| // Verify mFd is seekable |
| off64_t off = lseek64(mFd, 0, SEEK_SET); |
| if (off < 0) { |
| ALOGE("cannot seek mFd: %s (%d) %lld", strerror(errno), errno, (long long)mFd); |
| release(); |
| } |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| (*it)->resetInternal(); |
| } |
| } |
| |
| status_t MPEG4Writer::dump( |
| int fd, const Vector<String16>& args) { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| snprintf(buffer, SIZE, " MPEG4Writer %p\n", this); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " mStarted: %s\n", mStarted? "true": "false"); |
| result.append(buffer); |
| ::write(fd, result.string(), result.size()); |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| (*it)->dump(fd, args); |
| } |
| return OK; |
| } |
| |
| status_t MPEG4Writer::Track::dump( |
| int fd, const Vector<String16>& /* args */) const { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| snprintf(buffer, SIZE, " %s track\n", getTrackType()); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " reached EOS: %s\n", |
| mReachedEOS? "true": "false"); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " frames encoded : %d\n", mStszTableEntries->count()); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " duration encoded : %" PRId64 " us\n", mTrackDurationUs); |
| result.append(buffer); |
| ::write(fd, result.string(), result.size()); |
| return OK; |
| } |
| |
| // static |
| const char *MPEG4Writer::Track::getFourCCForMime(const char *mime) { |
| if (mime == NULL) { |
| return NULL; |
| } |
| if (!strncasecmp(mime, "audio/", 6)) { |
| if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, mime)) { |
| return "samr"; |
| } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, mime)) { |
| return "sawb"; |
| } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime)) { |
| return "mp4a"; |
| } |
| } else if (!strncasecmp(mime, "video/", 6)) { |
| if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) { |
| return "mp4v"; |
| } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) { |
| return "s263"; |
| } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) { |
| return "avc1"; |
| } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) { |
| return "hvc1"; |
| } |
| } else if (!strncasecmp(mime, "application/", 12)) { |
| return "mett"; |
| } else if (!strcasecmp(MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC, mime)) { |
| return "heic"; |
| } else { |
| ALOGE("Track (%s) other than video/audio/metadata is not supported", mime); |
| } |
| return NULL; |
| } |
| |
| status_t MPEG4Writer::addSource(const sp<MediaSource> &source) { |
| Mutex::Autolock l(mLock); |
| if (mStarted) { |
| ALOGE("Attempt to add source AFTER recording is started"); |
| return UNKNOWN_ERROR; |
| } |
| |
| CHECK(source.get() != NULL); |
| |
| const char *mime; |
| source->getFormat()->findCString(kKeyMIMEType, &mime); |
| |
| if (Track::getFourCCForMime(mime) == NULL) { |
| ALOGE("Unsupported mime '%s'", mime); |
| return ERROR_UNSUPPORTED; |
| } |
| |
| // This is a metadata track or the first track of either audio or video |
| // Go ahead to add the track. |
| Track *track = new Track(this, source, 1 + mTracks.size()); |
| mTracks.push_back(track); |
| |
| mHasMoovBox |= !track->isHeic(); |
| mHasFileLevelMeta |= track->isHeic(); |
| |
| return OK; |
| } |
| |
| status_t MPEG4Writer::startTracks(MetaData *params) { |
| if (mTracks.empty()) { |
| ALOGE("No source added"); |
| return INVALID_OPERATION; |
| } |
| |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| status_t err = (*it)->start(params); |
| |
| if (err != OK) { |
| for (List<Track *>::iterator it2 = mTracks.begin(); |
| it2 != it; ++it2) { |
| (*it2)->stop(); |
| } |
| |
| return err; |
| } |
| } |
| return OK; |
| } |
| |
| void MPEG4Writer::addDeviceMeta() { |
| // add device info and estimate space in 'moov' |
| char val[PROPERTY_VALUE_MAX]; |
| size_t n; |
| // meta size is estimated by adding up the following: |
| // - meta header structures, which occur only once (total 66 bytes) |
| // - size for each key, which consists of a fixed header (32 bytes), |
| // plus key length and data length. |
| mMoovExtraSize += 66; |
| if (property_get("ro.build.version.release", val, NULL) |
| && (n = strlen(val)) > 0) { |
| mMetaKeys->setString(kMetaKey_Version, val, n + 1); |
| mMoovExtraSize += sizeof(kMetaKey_Version) + n + 32; |
| } |
| |
| if (property_get_bool("media.recorder.show_manufacturer_and_model", false)) { |
| if (property_get("ro.product.manufacturer", val, NULL) |
| && (n = strlen(val)) > 0) { |
| mMetaKeys->setString(kMetaKey_Manufacturer, val, n + 1); |
| mMoovExtraSize += sizeof(kMetaKey_Manufacturer) + n + 32; |
| } |
| if (property_get("ro.product.model", val, NULL) |
| && (n = strlen(val)) > 0) { |
| mMetaKeys->setString(kMetaKey_Model, val, n + 1); |
| mMoovExtraSize += sizeof(kMetaKey_Model) + n + 32; |
| } |
| } |
| #ifdef SHOW_MODEL_BUILD |
| if (property_get("ro.build.display.id", val, NULL) |
| && (n = strlen(val)) > 0) { |
| mMetaKeys->setString(kMetaKey_Build, val, n + 1); |
| mMoovExtraSize += sizeof(kMetaKey_Build) + n + 32; |
| } |
| #endif |
| } |
| |
| int64_t MPEG4Writer::estimateFileLevelMetaSize(MetaData *params) { |
| int32_t rotation; |
| if (!params || !params->findInt32(kKeyRotation, &rotation)) { |
| rotation = 0; |
| } |
| |
| // base meta size |
| int64_t metaSize = 12 // meta fullbox header |
| + 33 // hdlr box |
| + 14 // pitm box |
| + 16 // iloc box (fixed size portion) |
| + 14 // iinf box (fixed size portion) |
| + 32 // iprp box (fixed size protion) |
| + 8 // idat box (when empty) |
| + 12 // iref box (when empty) |
| ; |
| |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| if ((*it)->isHeic()) { |
| metaSize += (*it)->getMetaSizeIncrease(rotation, mTracks.size()); |
| } |
| } |
| |
| ALOGV("estimated meta size: %lld", (long long) metaSize); |
| |
| // Need at least 8-byte padding at the end, otherwise the left-over |
| // freebox may become malformed |
| return metaSize + 8; |
| } |
| |
| int64_t MPEG4Writer::estimateMoovBoxSize(int32_t bitRate) { |
| // This implementation is highly experimental/heurisitic. |
| // |
| // Statistical analysis shows that metadata usually accounts |
| // for a small portion of the total file size, usually < 0.6%. |
| |
| // The default MIN_MOOV_BOX_SIZE is set to 0.6% x 1MB / 2, |
| // where 1MB is the common file size limit for MMS application. |
| // The default MAX _MOOV_BOX_SIZE value is based on about 3 |
| // minute video recording with a bit rate about 3 Mbps, because |
| // statistics also show that most of the video captured are going |
| // to be less than 3 minutes. |
| |
| // If the estimation is wrong, we will pay the price of wasting |
| // some reserved space. This should not happen so often statistically. |
| static const int32_t factor = mUse32BitOffset? 1: 2; |
| static const int64_t MIN_MOOV_BOX_SIZE = 3 * 1024; // 3 KB |
| static const int64_t MAX_MOOV_BOX_SIZE = (180 * 3000000 * 6LL / 8000); |
| int64_t size = MIN_MOOV_BOX_SIZE; |
| |
| // Max file size limit is set |
| if (mMaxFileSizeLimitBytes != 0 && mIsFileSizeLimitExplicitlyRequested) { |
| size = mMaxFileSizeLimitBytes * 6 / 1000; |
| } |
| |
| // Max file duration limit is set |
| if (mMaxFileDurationLimitUs != 0) { |
| if (bitRate > 0) { |
| int64_t size2 = |
| ((mMaxFileDurationLimitUs / 1000) * bitRate * 6) / 8000000; |
| if (mMaxFileSizeLimitBytes != 0 && mIsFileSizeLimitExplicitlyRequested) { |
| // When both file size and duration limits are set, |
| // we use the smaller limit of the two. |
| if (size > size2) { |
| size = size2; |
| } |
| } else { |
| // Only max file duration limit is set |
| size = size2; |
| } |
| } |
| } |
| |
| if (size < MIN_MOOV_BOX_SIZE) { |
| size = MIN_MOOV_BOX_SIZE; |
| } |
| |
| // Any long duration recording will be probably end up with |
| // non-streamable mp4 file. |
| if (size > MAX_MOOV_BOX_SIZE) { |
| size = MAX_MOOV_BOX_SIZE; |
| } |
| |
| // Account for the extra stuff (Geo, meta keys, etc.) |
| size += mMoovExtraSize; |
| |
| ALOGI("limits: %" PRId64 "/%" PRId64 " bytes/us, bit rate: %d bps and the" |
| " estimated moov size %" PRId64 " bytes", |
| mMaxFileSizeLimitBytes, mMaxFileDurationLimitUs, bitRate, size); |
| |
| int64_t estimatedSize = factor * size; |
| CHECK_GE(estimatedSize, 8); |
| |
| return estimatedSize; |
| } |
| |
| status_t MPEG4Writer::start(MetaData *param) { |
| if (mInitCheck != OK) { |
| return UNKNOWN_ERROR; |
| } |
| mStartMeta = param; |
| |
| /* |
| * Check mMaxFileSizeLimitBytes at the beginning |
| * since mMaxFileSizeLimitBytes may be implicitly |
| * changed later for 32-bit file offset even if |
| * user does not ask to set it explicitly. |
| */ |
| if (mMaxFileSizeLimitBytes != 0) { |
| mIsFileSizeLimitExplicitlyRequested = true; |
| } |
| |
| int32_t use64BitOffset; |
| if (param && |
| param->findInt32(kKey64BitFileOffset, &use64BitOffset) && |
| use64BitOffset) { |
| mUse32BitOffset = false; |
| } |
| |
| if (mUse32BitOffset) { |
| // Implicit 32 bit file size limit |
| if (mMaxFileSizeLimitBytes == 0) { |
| mMaxFileSizeLimitBytes = kMax32BitFileSize; |
| } |
| |
| // If file size is set to be larger than the 32 bit file |
| // size limit, treat it as an error. |
| if (mMaxFileSizeLimitBytes > kMax32BitFileSize) { |
| ALOGW("32-bit file size limit (%" PRId64 " bytes) too big. " |
| "It is changed to %" PRId64 " bytes", |
| mMaxFileSizeLimitBytes, kMax32BitFileSize); |
| mMaxFileSizeLimitBytes = kMax32BitFileSize; |
| } |
| } |
| |
| int32_t use2ByteNalLength; |
| if (param && |
| param->findInt32(kKey2ByteNalLength, &use2ByteNalLength) && |
| use2ByteNalLength) { |
| mUse4ByteNalLength = false; |
| } |
| |
| int32_t isRealTimeRecording; |
| if (param && param->findInt32(kKeyRealTimeRecording, &isRealTimeRecording)) { |
| mIsRealTimeRecording = isRealTimeRecording; |
| } |
| |
| mStartTimestampUs = -1; |
| |
| if (mStarted) { |
| if (mPaused) { |
| mPaused = false; |
| return startTracks(param); |
| } |
| return OK; |
| } |
| |
| if (!param || |
| !param->findInt32(kKeyTimeScale, &mTimeScale)) { |
| mTimeScale = 1000; |
| } |
| CHECK_GT(mTimeScale, 0); |
| ALOGV("movie time scale: %d", mTimeScale); |
| |
| /* |
| * When the requested file size limit is small, the priority |
| * is to meet the file size limit requirement, rather than |
| * to make the file streamable. mStreamableFile does not tell |
| * whether the actual recorded file is streamable or not. |
| */ |
| mStreamableFile = |
| (mMaxFileSizeLimitBytes != 0 && |
| mMaxFileSizeLimitBytes >= kMinStreamableFileSizeInBytes); |
| |
| /* |
| * mWriteBoxToMemory is true if the amount of data in a file-level meta or |
| * moov box is smaller than the reserved free space at the beginning of a |
| * file, AND when the content of the box is constructed. Note that video/ |
| * audio frame data is always written to the file but not in the memory. |
| * |
| * Before stop()/reset() is called, mWriteBoxToMemory is always |
| * false. When reset() is called at the end of a recording session, |
| * file-level meta and/or moov box needs to be constructed. |
| * |
| * 1) Right before the box is constructed, mWriteBoxToMemory to set to |
| * mStreamableFile so that if the file is intended to be streamable, it |
| * is set to true; otherwise, it is set to false. When the value is set |
| * to false, all the content of that box is written immediately to |
| * the end of the file. When the value is set to true, all the |
| * content of that box is written to an in-memory cache, |
| * mInMemoryCache, util the following condition happens. Note |
| * that the size of the in-memory cache is the same as the |
| * reserved free space at the beginning of the file. |
| * |
| * 2) While the data of the box is written to an in-memory |
| * cache, the data size is checked against the reserved space. |
| * If the data size surpasses the reserved space, subsequent box data |
| * could no longer be hold in the in-memory cache. This also |
| * indicates that the reserved space was too small. At this point, |
| * _all_ subsequent box data must be written to the end of the file. |
| * mWriteBoxToMemory must be set to false to direct the write |
| * to the file. |
| * |
| * 3) If the data size in the box is smaller than the reserved |
| * space after the box is completely constructed, the in-memory |
| * cache copy of the box is written to the reserved free space. |
| * mWriteBoxToMemory is always set to false after all boxes that |
| * using the in-memory cache have been constructed. |
| */ |
| mWriteBoxToMemory = false; |
| mInMemoryCache = NULL; |
| mInMemoryCacheOffset = 0; |
| |
| |
| ALOGV("muxer starting: mHasMoovBox %d, mHasFileLevelMeta %d", |
| mHasMoovBox, mHasFileLevelMeta); |
| |
| writeFtypBox(param); |
| |
| mFreeBoxOffset = mOffset; |
| |
| if (mInMemoryCacheSize == 0) { |
| int32_t bitRate = -1; |
| if (mHasFileLevelMeta) { |
| mInMemoryCacheSize += estimateFileLevelMetaSize(param); |
| } |
| if (mHasMoovBox) { |
| if (param) { |
| param->findInt32(kKeyBitRate, &bitRate); |
| } |
| mInMemoryCacheSize += estimateMoovBoxSize(bitRate); |
| } |
| } |
| if (mStreamableFile) { |
| // Reserve a 'free' box only for streamable file |
| lseek64(mFd, mFreeBoxOffset, SEEK_SET); |
| writeInt32(mInMemoryCacheSize); |
| write("free", 4); |
| mMdatOffset = mFreeBoxOffset + mInMemoryCacheSize; |
| } else { |
| mMdatOffset = mOffset; |
| } |
| |
| mOffset = mMdatOffset; |
| lseek64(mFd, mMdatOffset, SEEK_SET); |
| if (mUse32BitOffset) { |
| write("????mdat", 8); |
| } else { |
| write("\x00\x00\x00\x01mdat????????", 16); |
| } |
| |
| status_t err = startWriterThread(); |
| if (err != OK) { |
| return err; |
| } |
| |
| err = startTracks(param); |
| if (err != OK) { |
| return err; |
| } |
| |
| mStarted = true; |
| return OK; |
| } |
| |
| bool MPEG4Writer::use32BitFileOffset() const { |
| return mUse32BitOffset; |
| } |
| |
| status_t MPEG4Writer::pause() { |
| ALOGW("MPEG4Writer: pause is not supported"); |
| return ERROR_UNSUPPORTED; |
| } |
| |
| void MPEG4Writer::stopWriterThread() { |
| ALOGD("Stopping writer thread"); |
| if (!mWriterThreadStarted) { |
| return; |
| } |
| |
| { |
| Mutex::Autolock autolock(mLock); |
| |
| mDone = true; |
| mChunkReadyCondition.signal(); |
| } |
| |
| void *dummy; |
| pthread_join(mThread, &dummy); |
| mWriterThreadStarted = false; |
| ALOGD("Writer thread stopped"); |
| } |
| |
| /* |
| * MP4 file standard defines a composition matrix: |
| * | a b u | |
| * | c d v | |
| * | x y w | |
| * |
| * the element in the matrix is stored in the following |
| * order: {a, b, u, c, d, v, x, y, w}, |
| * where a, b, c, d, x, and y is in 16.16 format, while |
| * u, v and w is in 2.30 format. |
| */ |
| void MPEG4Writer::writeCompositionMatrix(int degrees) { |
| ALOGV("writeCompositionMatrix"); |
| uint32_t a = 0x00010000; |
| uint32_t b = 0; |
| uint32_t c = 0; |
| uint32_t d = 0x00010000; |
| switch (degrees) { |
| case 0: |
| break; |
| case 90: |
| a = 0; |
| b = 0x00010000; |
| c = 0xFFFF0000; |
| d = 0; |
| break; |
| case 180: |
| a = 0xFFFF0000; |
| d = 0xFFFF0000; |
| break; |
| case 270: |
| a = 0; |
| b = 0xFFFF0000; |
| c = 0x00010000; |
| d = 0; |
| break; |
| default: |
| CHECK(!"Should never reach this unknown rotation"); |
| break; |
| } |
| |
| writeInt32(a); // a |
| writeInt32(b); // b |
| writeInt32(0); // u |
| writeInt32(c); // c |
| writeInt32(d); // d |
| writeInt32(0); // v |
| writeInt32(0); // x |
| writeInt32(0); // y |
| writeInt32(0x40000000); // w |
| } |
| |
| void MPEG4Writer::release() { |
| close(mFd); |
| mFd = -1; |
| mInitCheck = NO_INIT; |
| mStarted = false; |
| free(mInMemoryCache); |
| mInMemoryCache = NULL; |
| } |
| |
| void MPEG4Writer::finishCurrentSession() { |
| reset(false /* stopSource */); |
| } |
| |
| status_t MPEG4Writer::switchFd() { |
| ALOGV("switchFd"); |
| Mutex::Autolock l(mLock); |
| if (mSwitchPending) { |
| return OK; |
| } |
| |
| if (mNextFd == -1) { |
| ALOGW("No FileDescripter for next recording"); |
| return INVALID_OPERATION; |
| } |
| |
| mSwitchPending = true; |
| sp<AMessage> msg = new AMessage(kWhatSwitch, mReflector); |
| status_t err = msg->post(); |
| |
| return err; |
| } |
| |
| status_t MPEG4Writer::reset(bool stopSource) { |
| if (mInitCheck != OK) { |
| return OK; |
| } else { |
| if (!mWriterThreadStarted || |
| !mStarted) { |
| if (mWriterThreadStarted) { |
| stopWriterThread(); |
| } |
| release(); |
| return OK; |
| } |
| } |
| |
| status_t err = OK; |
| int64_t maxDurationUs = 0; |
| int64_t minDurationUs = 0x7fffffffffffffffLL; |
| int32_t nonImageTrackCount = 0; |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| status_t status = (*it)->stop(stopSource); |
| if (err == OK && status != OK) { |
| err = status; |
| } |
| |
| // skip image tracks |
| if ((*it)->isHeic()) continue; |
| nonImageTrackCount++; |
| |
| int64_t durationUs = (*it)->getDurationUs(); |
| if (durationUs > maxDurationUs) { |
| maxDurationUs = durationUs; |
| } |
| if (durationUs < minDurationUs) { |
| minDurationUs = durationUs; |
| } |
| } |
| |
| if (nonImageTrackCount > 1) { |
| ALOGD("Duration from tracks range is [%" PRId64 ", %" PRId64 "] us", |
| minDurationUs, maxDurationUs); |
| } |
| |
| stopWriterThread(); |
| |
| // Do not write out movie header on error. |
| if (err != OK) { |
| release(); |
| return err; |
| } |
| |
| // Fix up the size of the 'mdat' chunk. |
| if (mUse32BitOffset) { |
| lseek64(mFd, mMdatOffset, SEEK_SET); |
| uint32_t size = htonl(static_cast<uint32_t>(mOffset - mMdatOffset)); |
| ::write(mFd, &size, 4); |
| } else { |
| lseek64(mFd, mMdatOffset + 8, SEEK_SET); |
| uint64_t size = mOffset - mMdatOffset; |
| size = hton64(size); |
| ::write(mFd, &size, 8); |
| } |
| lseek64(mFd, mOffset, SEEK_SET); |
| |
| // Construct file-level meta and moov box now |
| mInMemoryCacheOffset = 0; |
| mWriteBoxToMemory = mStreamableFile; |
| if (mWriteBoxToMemory) { |
| // There is no need to allocate in-memory cache |
| // if the file is not streamable. |
| |
| mInMemoryCache = (uint8_t *) malloc(mInMemoryCacheSize); |
| CHECK(mInMemoryCache != NULL); |
| } |
| |
| if (mHasFileLevelMeta) { |
| writeFileLevelMetaBox(); |
| if (mWriteBoxToMemory) { |
| writeCachedBoxToFile("meta"); |
| } else { |
| ALOGI("The file meta box is written at the end."); |
| } |
| } |
| |
| if (mHasMoovBox) { |
| writeMoovBox(maxDurationUs); |
| // mWriteBoxToMemory could be set to false in |
| // MPEG4Writer::write() method |
| if (mWriteBoxToMemory) { |
| writeCachedBoxToFile("moov"); |
| } else { |
| ALOGI("The mp4 file will not be streamable."); |
| } |
| } |
| mWriteBoxToMemory = false; |
| |
| // Free in-memory cache for box writing |
| if (mInMemoryCache != NULL) { |
| free(mInMemoryCache); |
| mInMemoryCache = NULL; |
| mInMemoryCacheOffset = 0; |
| } |
| |
| CHECK(mBoxes.empty()); |
| |
| release(); |
| return err; |
| } |
| |
| /* |
| * Writes currently cached box into file. |
| * |
| * Must be called while mWriteBoxToMemory is true, and will not modify |
| * mWriteBoxToMemory. After the call, remaining cache size will be |
| * reduced and buffer offset will be set to the beginning of the cache. |
| */ |
| void MPEG4Writer::writeCachedBoxToFile(const char *type) { |
| CHECK(mWriteBoxToMemory); |
| |
| mWriteBoxToMemory = false; |
| // Content of the box is saved in the cache, and the in-memory |
| // box needs to be written to the file in a single shot. |
| |
| CHECK_LE(mInMemoryCacheOffset + 8, mInMemoryCacheSize); |
| |
| // Cached box |
| lseek64(mFd, mFreeBoxOffset, SEEK_SET); |
| mOffset = mFreeBoxOffset; |
| write(mInMemoryCache, 1, mInMemoryCacheOffset); |
| |
| // Free box |
| lseek64(mFd, mOffset, SEEK_SET); |
| mFreeBoxOffset = mOffset; |
| writeInt32(mInMemoryCacheSize - mInMemoryCacheOffset); |
| write("free", 4); |
| |
| // Rewind buffering to the beginning, and restore mWriteBoxToMemory flag |
| mInMemoryCacheSize -= mInMemoryCacheOffset; |
| mInMemoryCacheOffset = 0; |
| mWriteBoxToMemory = true; |
| |
| ALOGV("dumped out %s box, estimated size remaining %lld", |
| type, (long long)mInMemoryCacheSize); |
| } |
| |
| uint32_t MPEG4Writer::getMpeg4Time() { |
| time_t now = time(NULL); |
| // MP4 file uses time counting seconds since midnight, Jan. 1, 1904 |
| // while time function returns Unix epoch values which starts |
| // at 1970-01-01. Lets add the number of seconds between them |
| static const uint32_t delta = (66 * 365 + 17) * (24 * 60 * 60); |
| if (now < 0 || uint32_t(now) > UINT32_MAX - delta) { |
| return 0; |
| } |
| uint32_t mpeg4Time = uint32_t(now) + delta; |
| return mpeg4Time; |
| } |
| |
| void MPEG4Writer::writeMvhdBox(int64_t durationUs) { |
| uint32_t now = getMpeg4Time(); |
| beginBox("mvhd"); |
| writeInt32(0); // version=0, flags=0 |
| writeInt32(now); // creation time |
| writeInt32(now); // modification time |
| writeInt32(mTimeScale); // mvhd timescale |
| int32_t duration = (durationUs * mTimeScale + 5E5) / 1E6; |
| writeInt32(duration); |
| writeInt32(0x10000); // rate: 1.0 |
| writeInt16(0x100); // volume |
| writeInt16(0); // reserved |
| writeInt32(0); // reserved |
| writeInt32(0); // reserved |
| writeCompositionMatrix(0); // matrix |
| writeInt32(0); // predefined |
| writeInt32(0); // predefined |
| writeInt32(0); // predefined |
| writeInt32(0); // predefined |
| writeInt32(0); // predefined |
| writeInt32(0); // predefined |
| writeInt32(mTracks.size() + 1); // nextTrackID |
| endBox(); // mvhd |
| } |
| |
| void MPEG4Writer::writeMoovBox(int64_t durationUs) { |
| beginBox("moov"); |
| writeMvhdBox(durationUs); |
| if (mAreGeoTagsAvailable) { |
| writeUdtaBox(); |
| } |
| writeMoovLevelMetaBox(); |
| // Loop through all the tracks to get the global time offset if there is |
| // any ctts table appears in a video track. |
| int64_t minCttsOffsetTimeUs = kMaxCttsOffsetTimeUs; |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| if (!(*it)->isHeic()) { |
| minCttsOffsetTimeUs = |
| std::min(minCttsOffsetTimeUs, (*it)->getMinCttsOffsetTimeUs()); |
| } |
| } |
| ALOGI("Ajust the moov start time from %lld us -> %lld us", |
| (long long)mStartTimestampUs, |
| (long long)(mStartTimestampUs + minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs)); |
| // Adjust the global start time. |
| mStartTimestampUs += minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs; |
| |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| if (!(*it)->isHeic()) { |
| (*it)->writeTrackHeader(mUse32BitOffset); |
| } |
| } |
| endBox(); // moov |
| } |
| |
| void MPEG4Writer::writeFtypBox(MetaData *param) { |
| beginBox("ftyp"); |
| |
| int32_t fileType; |
| if (!param || !param->findInt32(kKeyFileType, &fileType)) { |
| fileType = OUTPUT_FORMAT_MPEG_4; |
| } |
| if (fileType != OUTPUT_FORMAT_MPEG_4 && fileType != OUTPUT_FORMAT_HEIF) { |
| writeFourcc("3gp4"); |
| writeInt32(0); |
| writeFourcc("isom"); |
| writeFourcc("3gp4"); |
| } else { |
| // Only write "heic" as major brand if the client specified HEIF |
| // AND we indeed receive some image heic tracks. |
| if (fileType == OUTPUT_FORMAT_HEIF && mHasFileLevelMeta) { |
| writeFourcc("heic"); |
| } else { |
| writeFourcc("mp42"); |
| } |
| writeInt32(0); |
| if (mHasFileLevelMeta) { |
| writeFourcc("mif1"); |
| writeFourcc("heic"); |
| } |
| if (mHasMoovBox) { |
| writeFourcc("isom"); |
| writeFourcc("mp42"); |
| } |
| } |
| |
| endBox(); |
| } |
| |
| static bool isTestModeEnabled() { |
| #if (PROPERTY_VALUE_MAX < 5) |
| #error "PROPERTY_VALUE_MAX must be at least 5" |
| #endif |
| |
| // Test mode is enabled only if rw.media.record.test system |
| // property is enabled. |
| if (property_get_bool("rw.media.record.test", false)) { |
| return true; |
| } |
| return false; |
| } |
| |
| void MPEG4Writer::sendSessionSummary() { |
| // Send session summary only if test mode is enabled |
| if (!isTestModeEnabled()) { |
| return; |
| } |
| |
| for (List<ChunkInfo>::iterator it = mChunkInfos.begin(); |
| it != mChunkInfos.end(); ++it) { |
| int trackNum = it->mTrack->getTrackId() << 28; |
| notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS, |
| it->mMaxInterChunkDurUs); |
| } |
| } |
| |
| status_t MPEG4Writer::setInterleaveDuration(uint32_t durationUs) { |
| mInterleaveDurationUs = durationUs; |
| return OK; |
| } |
| |
| void MPEG4Writer::lock() { |
| mLock.lock(); |
| } |
| |
| void MPEG4Writer::unlock() { |
| mLock.unlock(); |
| } |
| |
| off64_t MPEG4Writer::addSample_l( |
| MediaBuffer *buffer, bool usePrefix, bool isExif, size_t *bytesWritten) { |
| off64_t old_offset = mOffset; |
| |
| if (usePrefix) { |
| addMultipleLengthPrefixedSamples_l(buffer); |
| } else { |
| if (isExif) { |
| ::write(mFd, &kTiffHeaderOffset, 4); // exif_tiff_header_offset field |
| mOffset += 4; |
| } |
| |
| ::write(mFd, |
| (const uint8_t *)buffer->data() + buffer->range_offset(), |
| buffer->range_length()); |
| |
| mOffset += buffer->range_length(); |
| } |
| |
| *bytesWritten = mOffset - old_offset; |
| return old_offset; |
| } |
| |
| static void StripStartcode(MediaBuffer *buffer) { |
| if (buffer->range_length() < 4) { |
| return; |
| } |
| |
| const uint8_t *ptr = |
| (const uint8_t *)buffer->data() + buffer->range_offset(); |
| |
| if (!memcmp(ptr, "\x00\x00\x00\x01", 4)) { |
| buffer->set_range( |
| buffer->range_offset() + 4, buffer->range_length() - 4); |
| } |
| } |
| |
| void MPEG4Writer::addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer) { |
| const uint8_t *dataStart = (const uint8_t *)buffer->data() + buffer->range_offset(); |
| const uint8_t *currentNalStart = dataStart; |
| const uint8_t *nextNalStart; |
| const uint8_t *data = dataStart; |
| size_t nextNalSize; |
| size_t searchSize = buffer->range_length(); |
| |
| while (getNextNALUnit(&data, &searchSize, &nextNalStart, |
| &nextNalSize, true) == OK) { |
| size_t currentNalSize = nextNalStart - currentNalStart - 4 /* strip start-code */; |
| MediaBuffer *nalBuf = new MediaBuffer((void *)currentNalStart, currentNalSize); |
| addLengthPrefixedSample_l(nalBuf); |
| nalBuf->release(); |
| |
| currentNalStart = nextNalStart; |
| } |
| |
| size_t currentNalOffset = currentNalStart - dataStart; |
| buffer->set_range(buffer->range_offset() + currentNalOffset, |
| buffer->range_length() - currentNalOffset); |
| addLengthPrefixedSample_l(buffer); |
| } |
| |
| void MPEG4Writer::addLengthPrefixedSample_l(MediaBuffer *buffer) { |
| size_t length = buffer->range_length(); |
| |
| if (mUse4ByteNalLength) { |
| uint8_t x = length >> 24; |
| ::write(mFd, &x, 1); |
| x = (length >> 16) & 0xff; |
| ::write(mFd, &x, 1); |
| x = (length >> 8) & 0xff; |
| ::write(mFd, &x, 1); |
| x = length & 0xff; |
| ::write(mFd, &x, 1); |
| |
| ::write(mFd, |
| (const uint8_t *)buffer->data() + buffer->range_offset(), |
| length); |
| |
| mOffset += length + 4; |
| } else { |
| CHECK_LT(length, 65536u); |
| |
| uint8_t x = length >> 8; |
| ::write(mFd, &x, 1); |
| x = length & 0xff; |
| ::write(mFd, &x, 1); |
| ::write(mFd, (const uint8_t *)buffer->data() + buffer->range_offset(), length); |
| mOffset += length + 2; |
| } |
| } |
| |
| size_t MPEG4Writer::write( |
| const void *ptr, size_t size, size_t nmemb) { |
| |
| const size_t bytes = size * nmemb; |
| if (mWriteBoxToMemory) { |
| |
| off64_t boxSize = 8 + mInMemoryCacheOffset + bytes; |
| if (boxSize > mInMemoryCacheSize) { |
| // The reserved free space at the beginning of the file is not big |
| // enough. Boxes should be written to the end of the file from now |
| // on, but not to the in-memory cache. |
| |
| // We write partial box that is in the memory to the file first. |
| for (List<off64_t>::iterator it = mBoxes.begin(); |
| it != mBoxes.end(); ++it) { |
| (*it) += mOffset; |
| } |
| lseek64(mFd, mOffset, SEEK_SET); |
| ::write(mFd, mInMemoryCache, mInMemoryCacheOffset); |
| ::write(mFd, ptr, bytes); |
| mOffset += (bytes + mInMemoryCacheOffset); |
| |
| // All subsequent boxes will be written to the end of the file. |
| mWriteBoxToMemory = false; |
| } else { |
| memcpy(mInMemoryCache + mInMemoryCacheOffset, ptr, bytes); |
| mInMemoryCacheOffset += bytes; |
| } |
| } else { |
| ::write(mFd, ptr, size * nmemb); |
| mOffset += bytes; |
| } |
| return bytes; |
| } |
| |
| void MPEG4Writer::beginBox(uint32_t id) { |
| mBoxes.push_back(mWriteBoxToMemory? |
| mInMemoryCacheOffset: mOffset); |
| |
| writeInt32(0); |
| writeInt32(id); |
| } |
| |
| void MPEG4Writer::beginBox(const char *fourcc) { |
| CHECK_EQ(strlen(fourcc), 4u); |
| |
| mBoxes.push_back(mWriteBoxToMemory? |
| mInMemoryCacheOffset: mOffset); |
| |
| writeInt32(0); |
| writeFourcc(fourcc); |
| } |
| |
| void MPEG4Writer::endBox() { |
| CHECK(!mBoxes.empty()); |
| |
| off64_t offset = *--mBoxes.end(); |
| mBoxes.erase(--mBoxes.end()); |
| |
| if (mWriteBoxToMemory) { |
| int32_t x = htonl(mInMemoryCacheOffset - offset); |
| memcpy(mInMemoryCache + offset, &x, 4); |
| } else { |
| lseek64(mFd, offset, SEEK_SET); |
| writeInt32(mOffset - offset); |
| mOffset -= 4; |
| lseek64(mFd, mOffset, SEEK_SET); |
| } |
| } |
| |
| void MPEG4Writer::writeInt8(int8_t x) { |
| write(&x, 1, 1); |
| } |
| |
| void MPEG4Writer::writeInt16(int16_t x) { |
| x = htons(x); |
| write(&x, 1, 2); |
| } |
| |
| void MPEG4Writer::writeInt32(int32_t x) { |
| x = htonl(x); |
| write(&x, 1, 4); |
| } |
| |
| void MPEG4Writer::writeInt64(int64_t x) { |
| x = hton64(x); |
| write(&x, 1, 8); |
| } |
| |
| void MPEG4Writer::writeCString(const char *s) { |
| size_t n = strlen(s); |
| write(s, 1, n + 1); |
| } |
| |
| void MPEG4Writer::writeFourcc(const char *s) { |
| CHECK_EQ(strlen(s), 4u); |
| write(s, 1, 4); |
| } |
| |
| |
| // Written in +/-DD.DDDD format |
| void MPEG4Writer::writeLatitude(int degreex10000) { |
| bool isNegative = (degreex10000 < 0); |
| char sign = isNegative? '-': '+'; |
| |
| // Handle the whole part |
| char str[9]; |
| int wholePart = degreex10000 / 10000; |
| if (wholePart == 0) { |
| snprintf(str, 5, "%c%.2d.", sign, wholePart); |
| } else { |
| snprintf(str, 5, "%+.2d.", wholePart); |
| } |
| |
| // Handle the fractional part |
| int fractionalPart = degreex10000 - (wholePart * 10000); |
| if (fractionalPart < 0) { |
| fractionalPart = -fractionalPart; |
| } |
| snprintf(&str[4], 5, "%.4d", fractionalPart); |
| |
| // Do not write the null terminator |
| write(str, 1, 8); |
| } |
| |
| // Written in +/- DDD.DDDD format |
| void MPEG4Writer::writeLongitude(int degreex10000) { |
| bool isNegative = (degreex10000 < 0); |
| char sign = isNegative? '-': '+'; |
| |
| // Handle the whole part |
| char str[10]; |
| int wholePart = degreex10000 / 10000; |
| if (wholePart == 0) { |
| snprintf(str, 6, "%c%.3d.", sign, wholePart); |
| } else { |
| snprintf(str, 6, "%+.3d.", wholePart); |
| } |
| |
| // Handle the fractional part |
| int fractionalPart = degreex10000 - (wholePart * 10000); |
| if (fractionalPart < 0) { |
| fractionalPart = -fractionalPart; |
| } |
| snprintf(&str[5], 5, "%.4d", fractionalPart); |
| |
| // Do not write the null terminator |
| write(str, 1, 9); |
| } |
| |
| /* |
| * Geodata is stored according to ISO-6709 standard. |
| * latitudex10000 is latitude in degrees times 10000, and |
| * longitudex10000 is longitude in degrees times 10000. |
| * The range for the latitude is in [-90, +90], and |
| * The range for the longitude is in [-180, +180] |
| */ |
| status_t MPEG4Writer::setGeoData(int latitudex10000, int longitudex10000) { |
| // Is latitude or longitude out of range? |
| if (latitudex10000 < -900000 || latitudex10000 > 900000 || |
| longitudex10000 < -1800000 || longitudex10000 > 1800000) { |
| return BAD_VALUE; |
| } |
| |
| mLatitudex10000 = latitudex10000; |
| mLongitudex10000 = longitudex10000; |
| mAreGeoTagsAvailable = true; |
| mMoovExtraSize += 30; |
| return OK; |
| } |
| |
| status_t MPEG4Writer::setCaptureRate(float captureFps) { |
| if (captureFps <= 0.0f) { |
| return BAD_VALUE; |
| } |
| |
| mMetaKeys->setFloat(kMetaKey_CaptureFps, captureFps); |
| mMoovExtraSize += sizeof(kMetaKey_CaptureFps) + 4 + 32; |
| |
| return OK; |
| } |
| |
| status_t MPEG4Writer::setTemporalLayerCount(uint32_t layerCount) { |
| if (layerCount > 9) { |
| return BAD_VALUE; |
| } |
| |
| if (layerCount > 0) { |
| mMetaKeys->setInt32(kMetaKey_TemporalLayerCount, layerCount); |
| mMoovExtraSize += sizeof(kMetaKey_TemporalLayerCount) + 4 + 32; |
| } |
| |
| return OK; |
| } |
| |
| void MPEG4Writer::notifyApproachingLimit() { |
| Mutex::Autolock autolock(mLock); |
| // Only notify once. |
| if (mSendNotify) { |
| return; |
| } |
| ALOGW("Recorded file size is approaching limit %" PRId64 "bytes", |
| mMaxFileSizeLimitBytes); |
| notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING, 0); |
| mSendNotify = true; |
| } |
| |
| void MPEG4Writer::write(const void *data, size_t size) { |
| write(data, 1, size); |
| } |
| |
| bool MPEG4Writer::isFileStreamable() const { |
| return mStreamableFile; |
| } |
| |
| bool MPEG4Writer::exceedsFileSizeLimit() { |
| // No limit |
| if (mMaxFileSizeLimitBytes == 0) { |
| return false; |
| } |
| int64_t nTotalBytesEstimate = static_cast<int64_t>(mInMemoryCacheSize); |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| nTotalBytesEstimate += (*it)->getEstimatedTrackSizeBytes(); |
| } |
| |
| if (!mStreamableFile) { |
| // Add 1024 bytes as error tolerance |
| return nTotalBytesEstimate + 1024 >= mMaxFileSizeLimitBytes; |
| } |
| |
| // Be conservative in the estimate: do not exceed 95% of |
| // the target file limit. For small target file size limit, though, |
| // this will not help. |
| return (nTotalBytesEstimate >= (95 * mMaxFileSizeLimitBytes) / 100); |
| } |
| |
| bool MPEG4Writer::approachingFileSizeLimit() { |
| // No limit |
| if (mMaxFileSizeLimitBytes == 0) { |
| return false; |
| } |
| |
| int64_t nTotalBytesEstimate = static_cast<int64_t>(mInMemoryCacheSize); |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| nTotalBytesEstimate += (*it)->getEstimatedTrackSizeBytes(); |
| } |
| |
| if (!mStreamableFile) { |
| // Add 1024 bytes as error tolerance |
| return nTotalBytesEstimate + 1024 >= (90 * mMaxFileSizeLimitBytes) / 100; |
| } |
| |
| return (nTotalBytesEstimate >= (90 * mMaxFileSizeLimitBytes) / 100); |
| } |
| |
| bool MPEG4Writer::exceedsFileDurationLimit() { |
| // No limit |
| if (mMaxFileDurationLimitUs == 0) { |
| return false; |
| } |
| |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| if (!(*it)->isHeic() && (*it)->getDurationUs() >= mMaxFileDurationLimitUs) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool MPEG4Writer::reachedEOS() { |
| bool allDone = true; |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| if (!(*it)->reachedEOS()) { |
| allDone = false; |
| break; |
| } |
| } |
| |
| return allDone; |
| } |
| |
| void MPEG4Writer::setStartTimestampUs(int64_t timeUs) { |
| ALOGI("setStartTimestampUs: %" PRId64, timeUs); |
| CHECK_GE(timeUs, 0ll); |
| Mutex::Autolock autoLock(mLock); |
| if (mStartTimestampUs < 0 || mStartTimestampUs > timeUs) { |
| mStartTimestampUs = timeUs; |
| ALOGI("Earliest track starting time: %" PRId64, mStartTimestampUs); |
| } |
| } |
| |
| int64_t MPEG4Writer::getStartTimestampUs() { |
| Mutex::Autolock autoLock(mLock); |
| return mStartTimestampUs; |
| } |
| |
| size_t MPEG4Writer::numTracks() { |
| Mutex::Autolock autolock(mLock); |
| return mTracks.size(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| MPEG4Writer::Track::Track( |
| MPEG4Writer *owner, const sp<MediaSource> &source, size_t trackId) |
| : mOwner(owner), |
| mMeta(source->getFormat()), |
| mSource(source), |
| mDone(false), |
| mPaused(false), |
| mResumed(false), |
| mStarted(false), |
| mGotStartKeyFrame(false), |
| mIsMalformed(false), |
| mTrackId(trackId), |
| mTrackDurationUs(0), |
| mEstimatedTrackSizeBytes(0), |
| mSamplesHaveSameSize(true), |
| mStszTableEntries(new ListTableEntries<uint32_t, 1>(1000)), |
| mStcoTableEntries(new ListTableEntries<uint32_t, 1>(1000)), |
| mCo64TableEntries(new ListTableEntries<off64_t, 1>(1000)), |
| mStscTableEntries(new ListTableEntries<uint32_t, 3>(1000)), |
| mStssTableEntries(new ListTableEntries<uint32_t, 1>(1000)), |
| mSttsTableEntries(new ListTableEntries<uint32_t, 2>(1000)), |
| mCttsTableEntries(new ListTableEntries<uint32_t, 2>(1000)), |
| mMinCttsOffsetTimeUs(0), |
| mMinCttsOffsetTicks(0), |
| mMaxCttsOffsetTicks(0), |
| mCodecSpecificData(NULL), |
| mCodecSpecificDataSize(0), |
| mGotAllCodecSpecificData(false), |
| mReachedEOS(false), |
| mStartTimestampUs(-1), |
| mRotation(0), |
| mDimgRefs("dimg"), |
| mCdscRefs("cdsc"), |
| mImageItemId(0), |
| mIsPrimary(0), |
| mWidth(0), |
| mHeight(0), |
| mTileWidth(0), |
| mTileHeight(0), |
| mGridRows(0), |
| mGridCols(0), |
| mNumTiles(1), |
| mTileIndex(0) { |
| getCodecSpecificDataFromInputFormatIfPossible(); |
| |
| const char *mime; |
| mMeta->findCString(kKeyMIMEType, &mime); |
| mIsAvc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC); |
| mIsHevc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC); |
| mIsAudio = !strncasecmp(mime, "audio/", 6); |
| mIsVideo = !strncasecmp(mime, "video/", 6); |
| mIsHeic = !strcasecmp(mime, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC); |
| mIsMPEG4 = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) || |
| !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC); |
| |
| // store temporal layer count |
| if (mIsVideo) { |
| int32_t count; |
| if (mMeta->findInt32(kKeyTemporalLayerCount, &count) && count > 1) { |
| mOwner->setTemporalLayerCount(count); |
| } |
| } |
| |
| if (!mIsHeic) { |
| setTimeScale(); |
| } else { |
| CHECK(mMeta->findInt32(kKeyWidth, &mWidth) && (mWidth > 0)); |
| CHECK(mMeta->findInt32(kKeyHeight, &mHeight) && (mHeight > 0)); |
| |
| int32_t tileWidth, tileHeight, gridRows, gridCols; |
| if (mMeta->findInt32(kKeyTileWidth, &tileWidth) && (tileWidth > 0) && |
| mMeta->findInt32(kKeyTileHeight, &tileHeight) && (tileHeight > 0) && |
| mMeta->findInt32(kKeyGridRows, &gridRows) && (gridRows > 0) && |
| mMeta->findInt32(kKeyGridCols, &gridCols) && (gridCols > 0)) { |
| mTileWidth = tileWidth; |
| mTileHeight = tileHeight; |
| mGridRows = gridRows; |
| mGridCols = gridCols; |
| mNumTiles = gridRows * gridCols; |
| } |
| if (!mMeta->findInt32(kKeyTrackIsDefault, &mIsPrimary)) { |
| mIsPrimary = false; |
| } |
| } |
| } |
| |
| // Clear all the internal states except the CSD data. |
| void MPEG4Writer::Track::resetInternal() { |
| mDone = false; |
| mPaused = false; |
| mResumed = false; |
| mStarted = false; |
| mGotStartKeyFrame = false; |
| mIsMalformed = false; |
| mTrackDurationUs = 0; |
| mEstimatedTrackSizeBytes = 0; |
| mSamplesHaveSameSize = 0; |
| if (mStszTableEntries != NULL) { |
| delete mStszTableEntries; |
| mStszTableEntries = new ListTableEntries<uint32_t, 1>(1000); |
| } |
| |
| if (mStcoTableEntries != NULL) { |
| delete mStcoTableEntries; |
| mStcoTableEntries = new ListTableEntries<uint32_t, 1>(1000); |
| } |
| if (mCo64TableEntries != NULL) { |
| delete mCo64TableEntries; |
| mCo64TableEntries = new ListTableEntries<off64_t, 1>(1000); |
| } |
| |
| if (mStscTableEntries != NULL) { |
| delete mStscTableEntries; |
| mStscTableEntries = new ListTableEntries<uint32_t, 3>(1000); |
| } |
| if (mStssTableEntries != NULL) { |
| delete mStssTableEntries; |
| mStssTableEntries = new ListTableEntries<uint32_t, 1>(1000); |
| } |
| if (mSttsTableEntries != NULL) { |
| delete mSttsTableEntries; |
| mSttsTableEntries = new ListTableEntries<uint32_t, 2>(1000); |
| } |
| if (mCttsTableEntries != NULL) { |
| delete mCttsTableEntries; |
| mCttsTableEntries = new ListTableEntries<uint32_t, 2>(1000); |
| } |
| mReachedEOS = false; |
| } |
| |
| void MPEG4Writer::Track::updateTrackSizeEstimate() { |
| mEstimatedTrackSizeBytes = mMdatSizeBytes; // media data size |
| |
| if (!isHeic() && !mOwner->isFileStreamable()) { |
| uint32_t stcoBoxCount = (mOwner->use32BitFileOffset() |
| ? mStcoTableEntries->count() |
| : mCo64TableEntries->count()); |
| int64_t stcoBoxSizeBytes = stcoBoxCount * 4; |
| int64_t stszBoxSizeBytes = mSamplesHaveSameSize? 4: (mStszTableEntries->count() * 4); |
| |
| // Reserved free space is not large enough to hold |
| // all meta data and thus wasted. |
| mEstimatedTrackSizeBytes += mStscTableEntries->count() * 12 + // stsc box size |
| mStssTableEntries->count() * 4 + // stss box size |
| mSttsTableEntries->count() * 8 + // stts box size |
| mCttsTableEntries->count() * 8 + // ctts box size |
| stcoBoxSizeBytes + // stco box size |
| stszBoxSizeBytes; // stsz box size |
| } |
| } |
| |
| void MPEG4Writer::Track::addOneStscTableEntry( |
| size_t chunkId, size_t sampleId) { |
| mStscTableEntries->add(htonl(chunkId)); |
| mStscTableEntries->add(htonl(sampleId)); |
| mStscTableEntries->add(htonl(1)); |
| } |
| |
| void MPEG4Writer::Track::addOneStssTableEntry(size_t sampleId) { |
| mStssTableEntries->add(htonl(sampleId)); |
| } |
| |
| void MPEG4Writer::Track::addOneSttsTableEntry( |
| size_t sampleCount, int32_t duration) { |
| |
| if (duration == 0) { |
| ALOGW("0-duration samples found: %zu", sampleCount); |
| } |
| mSttsTableEntries->add(htonl(sampleCount)); |
| mSttsTableEntries->add(htonl(duration)); |
| } |
| |
| void MPEG4Writer::Track::addOneCttsTableEntry( |
| size_t sampleCount, int32_t duration) { |
| |
| if (!mIsVideo) { |
| return; |
| } |
| mCttsTableEntries->add(htonl(sampleCount)); |
| mCttsTableEntries->add(htonl(duration)); |
| } |
| |
| status_t MPEG4Writer::setNextFd(int fd) { |
| ALOGV("addNextFd"); |
| Mutex::Autolock l(mLock); |
| if (mLooper == NULL) { |
| mReflector = new AHandlerReflector<MPEG4Writer>(this); |
| mLooper = new ALooper; |
| mLooper->registerHandler(mReflector); |
| mLooper->start(); |
| } |
| |
| if (mNextFd != -1) { |
| // No need to set a new FD yet. |
| return INVALID_OPERATION; |
| } |
| mNextFd = fd; |
| return OK; |
| } |
| |
| bool MPEG4Writer::Track::isExifData(const MediaBufferBase *buffer) const { |
| return mIsHeic |
| && (buffer->range_length() > sizeof(kExifHeader)) |
| && !memcmp((uint8_t *)buffer->data() + buffer->range_offset(), |
| kExifHeader, sizeof(kExifHeader)); |
| } |
| |
| void MPEG4Writer::Track::addChunkOffset(off64_t offset) { |
| CHECK(!mIsHeic); |
| if (mOwner->use32BitFileOffset()) { |
| uint32_t value = offset; |
| mStcoTableEntries->add(htonl(value)); |
| } else { |
| mCo64TableEntries->add(hton64(offset)); |
| } |
| } |
| |
| void MPEG4Writer::Track::addItemOffsetAndSize(off64_t offset, size_t size, bool isExif) { |
| CHECK(mIsHeic); |
| |
| if (offset > UINT32_MAX || size > UINT32_MAX) { |
| ALOGE("offset or size is out of range: %lld, %lld", |
| (long long) offset, (long long) size); |
| mIsMalformed = true; |
| } |
| if (mIsMalformed) { |
| return; |
| } |
| |
| if (isExif) { |
| mCdscRefs.value.push_back(mOwner->addItem_l({ |
| .itemType = "Exif", |
| .isPrimary = false, |
| .isHidden = false, |
| .offset = (uint32_t)offset, |
| .size = (uint32_t)size, |
| })); |
| return; |
| } |
| |
| if (mTileIndex >= mNumTiles) { |
| ALOGW("Ignoring excess tiles!"); |
| return; |
| } |
| |
| // Rotation angle in HEIF is CCW, framework angle is CW. |
| int32_t heifRotation = 0; |
| switch(mRotation) { |
| case 90: heifRotation = 3; break; |
| case 180: heifRotation = 2; break; |
| case 270: heifRotation = 1; break; |
| default: break; // don't set if invalid |
| } |
| |
| bool hasGrid = (mTileWidth > 0); |
| |
| if (mProperties.empty()) { |
| mProperties.push_back(mOwner->addProperty_l({ |
| .type = FOURCC('h', 'v', 'c', 'C'), |
| .hvcc = ABuffer::CreateAsCopy(mCodecSpecificData, mCodecSpecificDataSize) |
| })); |
| |
| mProperties.push_back(mOwner->addProperty_l({ |
| .type = FOURCC('i', 's', 'p', 'e'), |
| .width = hasGrid ? mTileWidth : mWidth, |
| .height = hasGrid ? mTileHeight : mHeight, |
| })); |
| |
| if (!hasGrid && heifRotation > 0) { |
| mProperties.push_back(mOwner->addProperty_l({ |
| .type = FOURCC('i', 'r', 'o', 't'), |
| .rotation = heifRotation, |
| })); |
| } |
| } |
| |
| mTileIndex++; |
| if (hasGrid) { |
| mDimgRefs.value.push_back(mOwner->addItem_l({ |
| .itemType = "hvc1", |
| .isPrimary = false, |
| .isHidden = true, |
| .offset = (uint32_t)offset, |
| .size = (uint32_t)size, |
| .properties = mProperties, |
| })); |
| |
| if (mTileIndex == mNumTiles) { |
| mProperties.clear(); |
| mProperties.push_back(mOwner->addProperty_l({ |
| .type = FOURCC('i', 's', 'p', 'e'), |
| .width = mWidth, |
| .height = mHeight, |
| })); |
| if (heifRotation > 0) { |
| mProperties.push_back(mOwner->addProperty_l({ |
| .type = FOURCC('i', 'r', 'o', 't'), |
| .rotation = heifRotation, |
| })); |
| } |
| mImageItemId = mOwner->addItem_l({ |
| .itemType = "grid", |
| .isPrimary = (mIsPrimary != 0), |
| .isHidden = false, |
| .rows = (uint32_t)mGridRows, |
| .cols = (uint32_t)mGridCols, |
| .width = (uint32_t)mWidth, |
| .height = (uint32_t)mHeight, |
| .properties = mProperties, |
| }); |
| } |
| } else { |
| mImageItemId = mOwner->addItem_l({ |
| .itemType = "hvc1", |
| .isPrimary = (mIsPrimary != 0), |
| .isHidden = false, |
| .offset = (uint32_t)offset, |
| .size = (uint32_t)size, |
| .properties = mProperties, |
| }); |
| } |
| } |
| |
| // Flush out the item refs for this track. Note that it must be called after the |
| // writer thread has stopped, because there might be pending items in the last |
| // few chunks written by the writer thread (as opposed to the track). In particular, |
| // it affects the 'dimg' refs for tiled image, as we only have the refs after the |
| // last tile sample is written. |
| void MPEG4Writer::Track::flushItemRefs() { |
| CHECK(mIsHeic); |
| |
| if (mImageItemId > 0) { |
| mOwner->addRefs_l(mImageItemId, mDimgRefs); |
| mOwner->addRefs_l(mImageItemId, mCdscRefs); |
| } |
| } |
| |
| void MPEG4Writer::Track::setTimeScale() { |
| ALOGV("setTimeScale"); |
| // Default time scale |
| mTimeScale = 90000; |
| |
| if (mIsAudio) { |
| // Use the sampling rate as the default time scale for audio track. |
| int32_t sampleRate; |
| bool success = mMeta->findInt32(kKeySampleRate, &sampleRate); |
| CHECK(success); |
| mTimeScale = sampleRate; |
| } |
| |
| // If someone would like to overwrite the timescale, use user-supplied value. |
| int32_t timeScale; |
| if (mMeta->findInt32(kKeyTimeScale, &timeScale)) { |
| mTimeScale = timeScale; |
| } |
| |
| CHECK_GT(mTimeScale, 0); |
| } |
| |
| void MPEG4Writer::onMessageReceived(const sp<AMessage> &msg) { |
| switch (msg->what()) { |
| case kWhatSwitch: |
| { |
| finishCurrentSession(); |
| mLock.lock(); |
| int fd = mNextFd; |
| mNextFd = -1; |
| mLock.unlock(); |
| initInternal(fd, false /*isFirstSession*/); |
| start(mStartMeta.get()); |
| mSwitchPending = false; |
| notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED, 0); |
| break; |
| } |
| default: |
| TRESPASS(); |
| } |
| } |
| |
| void MPEG4Writer::Track::getCodecSpecificDataFromInputFormatIfPossible() { |
| const char *mime; |
| |
| CHECK(mMeta->findCString(kKeyMIMEType, &mime)); |
| |
| uint32_t type; |
| const void *data = NULL; |
| size_t size = 0; |
| if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) { |
| mMeta->findData(kKeyAVCC, &type, &data, &size); |
| } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC) || |
| !strcasecmp(mime, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC)) { |
| mMeta->findData(kKeyHVCC, &type, &data, &size); |
| } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) |
| || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) { |
| if (mMeta->findData(kKeyESDS, &type, &data, &size)) { |
| ESDS esds(data, size); |
| if (esds.getCodecSpecificInfo(&data, &size) == OK && |
| data != NULL && |
| copyCodecSpecificData((uint8_t*)data, size) == OK) { |
| mGotAllCodecSpecificData = true; |
| } |
| return; |
| } |
| } |
| if (data != NULL && copyCodecSpecificData((uint8_t *)data, size) == OK) { |
| mGotAllCodecSpecificData = true; |
| } |
| } |
| |
| MPEG4Writer::Track::~Track() { |
| stop(); |
| |
| delete mStszTableEntries; |
| delete mStcoTableEntries; |
| delete mCo64TableEntries; |
| delete mStscTableEntries; |
| delete mSttsTableEntries; |
| delete mStssTableEntries; |
| delete mCttsTableEntries; |
| |
| mStszTableEntries = NULL; |
| mStcoTableEntries = NULL; |
| mCo64TableEntries = NULL; |
| mStscTableEntries = NULL; |
| mSttsTableEntries = NULL; |
| mStssTableEntries = NULL; |
| mCttsTableEntries = NULL; |
| |
| if (mCodecSpecificData != NULL) { |
| free(mCodecSpecificData); |
| mCodecSpecificData = NULL; |
| } |
| } |
| |
| void MPEG4Writer::Track::initTrackingProgressStatus(MetaData *params) { |
| ALOGV("initTrackingProgressStatus"); |
| mPreviousTrackTimeUs = -1; |
| mTrackingProgressStatus = false; |
| mTrackEveryTimeDurationUs = 0; |
| { |
| int64_t timeUs; |
| if (params && params->findInt64(kKeyTrackTimeStatus, &timeUs)) { |
| ALOGV("Receive request to track progress status for every %" PRId64 " us", timeUs); |
| mTrackEveryTimeDurationUs = timeUs; |
| mTrackingProgressStatus = true; |
| } |
| } |
| } |
| |
| // static |
| void *MPEG4Writer::ThreadWrapper(void *me) { |
| ALOGV("ThreadWrapper: %p", me); |
| MPEG4Writer *writer = static_cast<MPEG4Writer *>(me); |
| writer->threadFunc(); |
| return NULL; |
| } |
| |
| void MPEG4Writer::bufferChunk(const Chunk& chunk) { |
| ALOGV("bufferChunk: %p", chunk.mTrack); |
| Mutex::Autolock autolock(mLock); |
| CHECK_EQ(mDone, false); |
| |
| for (List<ChunkInfo>::iterator it = mChunkInfos.begin(); |
| it != mChunkInfos.end(); ++it) { |
| |
| if (chunk.mTrack == it->mTrack) { // Found owner |
| it->mChunks.push_back(chunk); |
| mChunkReadyCondition.signal(); |
| return; |
| } |
| } |
| |
| CHECK(!"Received a chunk for a unknown track"); |
| } |
| |
| void MPEG4Writer::writeChunkToFile(Chunk* chunk) { |
| ALOGV("writeChunkToFile: %" PRId64 " from %s track", |
| chunk->mTimeStampUs, chunk->mTrack->getTrackType()); |
| |
| int32_t isFirstSample = true; |
| while (!chunk->mSamples.empty()) { |
| List<MediaBuffer *>::iterator it = chunk->mSamples.begin(); |
| |
| int32_t isExif; |
| if (!(*it)->meta_data().findInt32(kKeyIsExif, &isExif)) { |
| isExif = 0; |
| } |
| bool usePrefix = chunk->mTrack->usePrefix() && !isExif; |
| |
| size_t bytesWritten; |
| off64_t offset = addSample_l(*it, usePrefix, isExif, &bytesWritten); |
| |
| if (chunk->mTrack->isHeic()) { |
| chunk->mTrack->addItemOffsetAndSize(offset, bytesWritten, isExif); |
| } else if (isFirstSample) { |
| chunk->mTrack->addChunkOffset(offset); |
| isFirstSample = false; |
| } |
| |
| (*it)->release(); |
| (*it) = NULL; |
| chunk->mSamples.erase(it); |
| } |
| chunk->mSamples.clear(); |
| } |
| |
| void MPEG4Writer::writeAllChunks() { |
| ALOGV("writeAllChunks"); |
| size_t outstandingChunks = 0; |
| Chunk chunk; |
| while (findChunkToWrite(&chunk)) { |
| writeChunkToFile(&chunk); |
| ++outstandingChunks; |
| } |
| |
| sendSessionSummary(); |
| |
| mChunkInfos.clear(); |
| ALOGD("%zu chunks are written in the last batch", outstandingChunks); |
| } |
| |
| bool MPEG4Writer::findChunkToWrite(Chunk *chunk) { |
| ALOGV("findChunkToWrite"); |
| |
| int64_t minTimestampUs = 0x7FFFFFFFFFFFFFFFLL; |
| Track *track = NULL; |
| for (List<ChunkInfo>::iterator it = mChunkInfos.begin(); |
| it != mChunkInfos.end(); ++it) { |
| if (!it->mChunks.empty()) { |
| List<Chunk>::iterator chunkIt = it->mChunks.begin(); |
| if (chunkIt->mTimeStampUs < minTimestampUs) { |
| minTimestampUs = chunkIt->mTimeStampUs; |
| track = it->mTrack; |
| } |
| } |
| } |
| |
| if (track == NULL) { |
| ALOGV("Nothing to be written after all"); |
| return false; |
| } |
| |
| if (mIsFirstChunk) { |
| mIsFirstChunk = false; |
| } |
| |
| for (List<ChunkInfo>::iterator it = mChunkInfos.begin(); |
| it != mChunkInfos.end(); ++it) { |
| if (it->mTrack == track) { |
| *chunk = *(it->mChunks.begin()); |
| it->mChunks.erase(it->mChunks.begin()); |
| CHECK_EQ(chunk->mTrack, track); |
| |
| int64_t interChunkTimeUs = |
| chunk->mTimeStampUs - it->mPrevChunkTimestampUs; |
| if (interChunkTimeUs > it->mPrevChunkTimestampUs) { |
| it->mMaxInterChunkDurUs = interChunkTimeUs; |
| } |
| |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| void MPEG4Writer::threadFunc() { |
| ALOGV("threadFunc"); |
| |
| prctl(PR_SET_NAME, (unsigned long)"MPEG4Writer", 0, 0, 0); |
| |
| Mutex::Autolock autoLock(mLock); |
| while (!mDone) { |
| Chunk chunk; |
| bool chunkFound = false; |
| |
| while (!mDone && !(chunkFound = findChunkToWrite(&chunk))) { |
| mChunkReadyCondition.wait(mLock); |
| } |
| |
| // In real time recording mode, write without holding the lock in order |
| // to reduce the blocking time for media track threads. |
| // Otherwise, hold the lock until the existing chunks get written to the |
| // file. |
| if (chunkFound) { |
| if (mIsRealTimeRecording) { |
| mLock.unlock(); |
| } |
| writeChunkToFile(&chunk); |
| if (mIsRealTimeRecording) { |
| mLock.lock(); |
| } |
| } |
| } |
| |
| writeAllChunks(); |
| } |
| |
| status_t MPEG4Writer::startWriterThread() { |
| ALOGV("startWriterThread"); |
| |
| mDone = false; |
| mIsFirstChunk = true; |
| mDriftTimeUs = 0; |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| ChunkInfo info; |
| info.mTrack = *it; |
| info.mPrevChunkTimestampUs = 0; |
| info.mMaxInterChunkDurUs = 0; |
| mChunkInfos.push_back(info); |
| } |
| |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); |
| pthread_create(&mThread, &attr, ThreadWrapper, this); |
| pthread_attr_destroy(&attr); |
| mWriterThreadStarted = true; |
| return OK; |
| } |
| |
| |
| status_t MPEG4Writer::Track::start(MetaData *params) { |
| if (!mDone && mPaused) { |
| mPaused = false; |
| mResumed = true; |
| return OK; |
| } |
| |
| int64_t startTimeUs; |
| if (params == NULL || !params->findInt64(kKeyTime, &startTimeUs)) { |
| startTimeUs = 0; |
| } |
| mStartTimeRealUs = startTimeUs; |
| |
| int32_t rotationDegrees; |
| if ((mIsVideo || mIsHeic) && params && |
| params->findInt32(kKeyRotation, &rotationDegrees)) { |
| mRotation = rotationDegrees; |
| } |
| |
| initTrackingProgressStatus(params); |
| |
| sp<MetaData> meta = new MetaData; |
| if (mOwner->isRealTimeRecording() && mOwner->numTracks() > 1) { |
| /* |
| * This extra delay of accepting incoming audio/video signals |
| * helps to align a/v start time at the beginning of a recording |
| * session, and it also helps eliminate the "recording" sound for |
| * camcorder applications. |
| * |
| * If client does not set the start time offset, we fall back to |
| * use the default initial delay value. |
| */ |
| int64_t startTimeOffsetUs = mOwner->getStartTimeOffsetMs() * 1000LL; |
| if (startTimeOffsetUs < 0) { // Start time offset was not set |
| startTimeOffsetUs = kInitialDelayTimeUs; |
| } |
| startTimeUs += startTimeOffsetUs; |
| ALOGI("Start time offset: %" PRId64 " us", startTimeOffsetUs); |
| } |
| |
| meta->setInt64(kKeyTime, startTimeUs); |
| |
| status_t err = mSource->start(meta.get()); |
| if (err != OK) { |
| mDone = mReachedEOS = true; |
| return err; |
| } |
| |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); |
| |
| mDone = false; |
| mStarted = true; |
| mTrackDurationUs = 0; |
| mReachedEOS = false; |
| mEstimatedTrackSizeBytes = 0; |
| mMdatSizeBytes = 0; |
| mMaxChunkDurationUs = 0; |
| mLastDecodingTimeUs = -1; |
| |
| pthread_create(&mThread, &attr, ThreadWrapper, this); |
| pthread_attr_destroy(&attr); |
| |
| return OK; |
| } |
| |
| status_t MPEG4Writer::Track::pause() { |
| mPaused = true; |
| return OK; |
| } |
| |
| status_t MPEG4Writer::Track::stop(bool stopSource) { |
| ALOGD("%s track stopping. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop"); |
| if (!mStarted) { |
| ALOGE("Stop() called but track is not started"); |
| return ERROR_END_OF_STREAM; |
| } |
| |
| if (mDone) { |
| return OK; |
| } |
| |
| if (stopSource) { |
| ALOGD("%s track source stopping", getTrackType()); |
| mSource->stop(); |
| ALOGD("%s track source stopped", getTrackType()); |
| } |
| |
| // Set mDone to be true after sucessfully stop mSource as mSource may be still outputting |
| // buffers to the writer. |
| mDone = true; |
| |
| void *dummy; |
| pthread_join(mThread, &dummy); |
| status_t err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy)); |
| |
| ALOGD("%s track stopped. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop"); |
| return err; |
| } |
| |
| bool MPEG4Writer::Track::reachedEOS() { |
| return mReachedEOS; |
| } |
| |
| // static |
| void *MPEG4Writer::Track::ThreadWrapper(void *me) { |
| Track *track = static_cast<Track *>(me); |
| |
| status_t err = track->threadEntry(); |
| return (void *)(uintptr_t)err; |
| } |
| |
| static void getNalUnitType(uint8_t byte, uint8_t* type) { |
| ALOGV("getNalUnitType: %d", byte); |
| |
| // nal_unit_type: 5-bit unsigned integer |
| *type = (byte & 0x1F); |
| } |
| |
| const uint8_t *MPEG4Writer::Track::parseParamSet( |
| const uint8_t *data, size_t length, int type, size_t *paramSetLen) { |
| |
| ALOGV("parseParamSet"); |
| CHECK(type == kNalUnitTypeSeqParamSet || |
| type == kNalUnitTypePicParamSet); |
| |
| const uint8_t *nextStartCode = findNextNalStartCode(data, length); |
| *paramSetLen = nextStartCode - data; |
| if (*paramSetLen == 0) { |
| ALOGE("Param set is malformed, since its length is 0"); |
| return NULL; |
| } |
| |
| AVCParamSet paramSet(*paramSetLen, data); |
| if (type == kNalUnitTypeSeqParamSet) { |
| if (*paramSetLen < 4) { |
| ALOGE("Seq parameter set malformed"); |
| return NULL; |
| } |
| if (mSeqParamSets.empty()) { |
| mProfileIdc = data[1]; |
| mProfileCompatible = data[2]; |
| mLevelIdc = data[3]; |
| } else { |
| if (mProfileIdc != data[1] || |
| mProfileCompatible != data[2] || |
| mLevelIdc != data[3]) { |
| // COULD DO: set profile/level to the lowest required to support all SPSs |
| ALOGE("Inconsistent profile/level found in seq parameter sets"); |
| return NULL; |
| } |
| } |
| mSeqParamSets.push_back(paramSet); |
| } else { |
| mPicParamSets.push_back(paramSet); |
| } |
| return nextStartCode; |
| } |
| |
| status_t MPEG4Writer::Track::copyAVCCodecSpecificData( |
| const uint8_t *data, size_t size) { |
| ALOGV("copyAVCCodecSpecificData"); |
| |
| // 2 bytes for each of the parameter set length field |
| // plus the 7 bytes for the header |
| return copyCodecSpecificData(data, size, 4 + 7); |
| } |
| |
| status_t MPEG4Writer::Track::copyHEVCCodecSpecificData( |
| const uint8_t *data, size_t size) { |
| ALOGV("copyHEVCCodecSpecificData"); |
| |
| // Min length of HEVC CSD is 23. (ISO/IEC 14496-15:2014 Chapter 8.3.3.1.2) |
| return copyCodecSpecificData(data, size, 23); |
| } |
| |
| status_t MPEG4Writer::Track::copyCodecSpecificData( |
| const uint8_t *data, size_t size, size_t minLength) { |
| if (size < minLength) { |
| ALOGE("Codec specific data length too short: %zu", size); |
| return ERROR_MALFORMED; |
| } |
| |
| mCodecSpecificData = malloc(size); |
| if (mCodecSpecificData == NULL) { |
| ALOGE("Failed allocating codec specific data"); |
| return NO_MEMORY; |
| } |
| mCodecSpecificDataSize = size; |
| memcpy(mCodecSpecificData, data, size); |
| return OK; |
| } |
| |
| status_t MPEG4Writer::Track::parseAVCCodecSpecificData( |
| const uint8_t *data, size_t size) { |
| |
| ALOGV("parseAVCCodecSpecificData"); |
| // Data starts with a start code. |
| // SPS and PPS are separated with start codes. |
| // Also, SPS must come before PPS |
| uint8_t type = kNalUnitTypeSeqParamSet; |
| bool gotSps = false; |
| bool gotPps = false; |
| const uint8_t *tmp = data; |
| const uint8_t *nextStartCode = data; |
| size_t bytesLeft = size; |
| size_t paramSetLen = 0; |
| mCodecSpecificDataSize = 0; |
| while (bytesLeft > 4 && !memcmp("\x00\x00\x00\x01", tmp, 4)) { |
| getNalUnitType(*(tmp + 4), &type); |
| if (type == kNalUnitTypeSeqParamSet) { |
| if (gotPps) { |
| ALOGE("SPS must come before PPS"); |
| return ERROR_MALFORMED; |
| } |
| if (!gotSps) { |
| gotSps = true; |
| } |
| nextStartCode = parseParamSet(tmp + 4, bytesLeft - 4, type, ¶mSetLen); |
| } else if (type == kNalUnitTypePicParamSet) { |
| if (!gotSps) { |
| ALOGE("SPS must come before PPS"); |
| return ERROR_MALFORMED; |
| } |
| if (!gotPps) { |
| gotPps = true; |
| } |
| nextStartCode = parseParamSet(tmp + 4, bytesLeft - 4, type, ¶mSetLen); |
| } else { |
| ALOGE("Only SPS and PPS Nal units are expected"); |
| return ERROR_MALFORMED; |
| } |
| |
| if (nextStartCode == NULL) { |
| return ERROR_MALFORMED; |
| } |
| |
| // Move on to find the next parameter set |
| bytesLeft -= nextStartCode - tmp; |
| tmp = nextStartCode; |
| mCodecSpecificDataSize += (2 + paramSetLen); |
| } |
| |
| { |
| // Check on the number of seq parameter sets |
| size_t nSeqParamSets = mSeqParamSets.size(); |
| if (nSeqParamSets == 0) { |
| ALOGE("Cound not find sequence parameter set"); |
| return ERROR_MALFORMED; |
| } |
| |
| if (nSeqParamSets > 0x1F) { |
| ALOGE("Too many seq parameter sets (%zu) found", nSeqParamSets); |
| return ERROR_MALFORMED; |
| } |
| } |
| |
| { |
| // Check on the number of pic parameter sets |
| size_t nPicParamSets = mPicParamSets.size(); |
| if (nPicParamSets == 0) { |
| ALOGE("Cound not find picture parameter set"); |
| return ERROR_MALFORMED; |
| } |
| if (nPicParamSets > 0xFF) { |
| ALOGE("Too many pic parameter sets (%zd) found", nPicParamSets); |
| return ERROR_MALFORMED; |
| } |
| } |
| // FIXME: |
| // Add chromat_format_idc, bit depth values, etc for AVC/h264 high profile and above |
| // and remove #if 0 |
| #if 0 |
| { |
| // Check on the profiles |
| // These profiles requires additional parameter set extensions |
| if (mProfileIdc == 100 || mProfileIdc == 110 || |
| mProfileIdc == 122 || mProfileIdc == 144) { |
| ALOGE("Sorry, no support for profile_idc: %d!", mProfileIdc); |
| return BAD_VALUE; |
| } |
| } |
| #endif |
| return OK; |
| } |
| |
| status_t MPEG4Writer::Track::makeAVCCodecSpecificData( |
| const uint8_t *data, size_t size) { |
| |
| if (mCodecSpecificData != NULL) { |
| ALOGE("Already have codec specific data"); |
| return ERROR_MALFORMED; |
| } |
| |
| if (size < 4) { |
| ALOGE("Codec specific data length too short: %zu", size); |
| return ERROR_MALFORMED; |
| } |
| |
| // Data is in the form of AVCCodecSpecificData |
| if (memcmp("\x00\x00\x00\x01", data, 4)) { |
| return copyAVCCodecSpecificData(data, size); |
| } |
| |
| if (parseAVCCodecSpecificData(data, size) != OK) { |
| return ERROR_MALFORMED; |
| } |
| |
| // ISO 14496-15: AVC file format |
| mCodecSpecificDataSize += 7; // 7 more bytes in the header |
| mCodecSpecificData = malloc(mCodecSpecificDataSize); |
| if (mCodecSpecificData == NULL) { |
| mCodecSpecificDataSize = 0; |
| ALOGE("Failed allocating codec specific data"); |
| return NO_MEMORY; |
| } |
| uint8_t *header = (uint8_t *)mCodecSpecificData; |
| header[0] = 1; // version |
| header[1] = mProfileIdc; // profile indication |
| header[2] = mProfileCompatible; // profile compatibility |
| header[3] = mLevelIdc; |
| |
| // 6-bit '111111' followed by 2-bit to lengthSizeMinuusOne |
| if (mOwner->useNalLengthFour()) { |
| header[4] = 0xfc | 3; // length size == 4 bytes |
| } else { |
| header[4] = 0xfc | 1; // length size == 2 bytes |
| } |
| |
| // 3-bit '111' followed by 5-bit numSequenceParameterSets |
| int nSequenceParamSets = mSeqParamSets.size(); |
| header[5] = 0xe0 | nSequenceParamSets; |
| header += 6; |
| for (List<AVCParamSet>::iterator it = mSeqParamSets.begin(); |
| it != mSeqParamSets.end(); ++it) { |
| // 16-bit sequence parameter set length |
| uint16_t seqParamSetLength = it->mLength; |
| header[0] = seqParamSetLength >> 8; |
| header[1] = seqParamSetLength & 0xff; |
| |
| // SPS NAL unit (sequence parameter length bytes) |
| memcpy(&header[2], it->mData, seqParamSetLength); |
| header += (2 + seqParamSetLength); |
| } |
| |
| // 8-bit nPictureParameterSets |
| int nPictureParamSets = mPicParamSets.size(); |
| header[0] = nPictureParamSets; |
| header += 1; |
| for (List<AVCParamSet>::iterator it = mPicParamSets.begin(); |
| it != mPicParamSets.end(); ++it) { |
| // 16-bit picture parameter set length |
| uint16_t picParamSetLength = it->mLength; |
| header[0] = picParamSetLength >> 8; |
| header[1] = picParamSetLength & 0xff; |
| |
| // PPS Nal unit (picture parameter set length bytes) |
| memcpy(&header[2], it->mData, picParamSetLength); |
| header += (2 + picParamSetLength); |
| } |
| |
| return OK; |
| } |
| |
| |
| status_t MPEG4Writer::Track::parseHEVCCodecSpecificData( |
| const uint8_t *data, size_t size, HevcParameterSets ¶mSets) { |
| |
| ALOGV("parseHEVCCodecSpecificData"); |
| const uint8_t *tmp = data; |
| const uint8_t *nextStartCode = data; |
| size_t bytesLeft = size; |
| while (bytesLeft > 4 && !memcmp("\x00\x00\x00\x01", tmp, 4)) { |
| nextStartCode = findNextNalStartCode(tmp + 4, bytesLeft - 4); |
| status_t err = paramSets.addNalUnit(tmp + 4, (nextStartCode - tmp) - 4); |
| if (err != OK) { |
| return ERROR_MALFORMED; |
| } |
| |
| // Move on to find the next parameter set |
| bytesLeft -= nextStartCode - tmp; |
| tmp = nextStartCode; |
| } |
| |
| size_t csdSize = 23; |
| const size_t numNalUnits = paramSets.getNumNalUnits(); |
| for (size_t i = 0; i < ARRAY_SIZE(kMandatoryHevcNalUnitTypes); ++i) { |
| int type = kMandatoryHevcNalUnitTypes[i]; |
| size_t numParamSets = paramSets.getNumNalUnitsOfType(type); |
| if (numParamSets == 0) { |
| ALOGE("Cound not find NAL unit of type %d", type); |
| return ERROR_MALFORMED; |
| } |
| } |
| for (size_t i = 0; i < ARRAY_SIZE(kHevcNalUnitTypes); ++i) { |
| int type = kHevcNalUnitTypes[i]; |
| size_t numParamSets = paramSets.getNumNalUnitsOfType(type); |
| if (numParamSets > 0xffff) { |
| ALOGE("Too many seq parameter sets (%zu) found", numParamSets); |
| return ERROR_MALFORMED; |
| } |
| csdSize += 3; |
| for (size_t j = 0; j < numNalUnits; ++j) { |
| if (paramSets.getType(j) != type) { |
| continue; |
| } |
| csdSize += 2 + paramSets.getSize(j); |
| } |
| } |
| mCodecSpecificDataSize = csdSize; |
| return OK; |
| } |
| |
| status_t MPEG4Writer::Track::makeHEVCCodecSpecificData( |
| const uint8_t *data, size_t size) { |
| |
| if (mCodecSpecificData != NULL) { |
| ALOGE("Already have codec specific data"); |
| return ERROR_MALFORMED; |
| } |
| |
| if (size < 4) { |
| ALOGE("Codec specific data length too short: %zu", size); |
| return ERROR_MALFORMED; |
| } |
| |
| // Data is in the form of HEVCCodecSpecificData |
| if (memcmp("\x00\x00\x00\x01", data, 4)) { |
| return copyHEVCCodecSpecificData(data, size); |
| } |
| |
| HevcParameterSets paramSets; |
| if (parseHEVCCodecSpecificData(data, size, paramSets) != OK) { |
| ALOGE("failed parsing codec specific data"); |
| return ERROR_MALFORMED; |
| } |
| |
| mCodecSpecificData = malloc(mCodecSpecificDataSize); |
| if (mCodecSpecificData == NULL) { |
| mCodecSpecificDataSize = 0; |
| ALOGE("Failed allocating codec specific data"); |
| return NO_MEMORY; |
| } |
| status_t err = paramSets.makeHvcc((uint8_t *)mCodecSpecificData, |
| &mCodecSpecificDataSize, mOwner->useNalLengthFour() ? 4 : 2); |
| if (err != OK) { |
| ALOGE("failed constructing HVCC atom"); |
| return err; |
| } |
| |
| return OK; |
| } |
| |
| /* |
| * Updates the drift time from the audio track so that |
| * the video track can get the updated drift time information |
| * from the file writer. The fluctuation of the drift time of the audio |
| * encoding path is smoothed out with a simple filter by giving a larger |
| * weight to more recently drift time. The filter coefficients, 0.5 and 0.5, |
| * are heuristically determined. |
| */ |
| void MPEG4Writer::Track::updateDriftTime(const sp<MetaData>& meta) { |
| int64_t driftTimeUs = 0; |
| if (meta->findInt64(kKeyDriftTime, &driftTimeUs)) { |
| int64_t prevDriftTimeUs = mOwner->getDriftTimeUs(); |
| int64_t timeUs = (driftTimeUs + prevDriftTimeUs) >> 1; |
| mOwner->setDriftTimeUs(timeUs); |
| } |
| } |
| |
| void MPEG4Writer::Track::dumpTimeStamps() { |
| ALOGE("Dumping %s track's last 10 frames timestamp and frame type ", getTrackType()); |
| std::string timeStampString; |
| for (std::list<TimestampDebugHelperEntry>::iterator entry = mTimestampDebugHelper.begin(); |
| entry != mTimestampDebugHelper.end(); ++entry) { |
| timeStampString += "(" + std::to_string(entry->pts)+ |
| "us, " + std::to_string(entry->dts) + "us " + entry->frameType + ") "; |
| } |
| ALOGE("%s", timeStampString.c_str()); |
| } |
| |
| status_t MPEG4Writer::Track::threadEntry() { |
| int32_t count = 0; |
| const int64_t interleaveDurationUs = mOwner->interleaveDuration(); |
| const bool hasMultipleTracks = (mOwner->numTracks() > 1); |
| int64_t chunkTimestampUs = 0; |
| int32_t nChunks = 0; |
| int32_t nActualFrames = 0; // frames containing non-CSD data (non-0 length) |
| int32_t nZeroLengthFrames = 0; |
| int64_t lastTimestampUs = 0; // Previous sample time stamp |
| int64_t lastDurationUs = 0; // Between the previous two samples |
| int64_t currDurationTicks = 0; // Timescale based ticks |
| int64_t lastDurationTicks = 0; // Timescale based ticks |
| int32_t sampleCount = 1; // Sample count in the current stts table entry |
| uint32_t previousSampleSize = 0; // Size of the previous sample |
| int64_t previousPausedDurationUs = 0; |
| int64_t timestampUs = 0; |
| int64_t cttsOffsetTimeUs = 0; |
| int64_t currCttsOffsetTimeTicks = 0; // Timescale based ticks |
| int64_t lastCttsOffsetTimeTicks = -1; // Timescale based ticks |
| int32_t cttsSampleCount = 0; // Sample count in the current ctts table entry |
| uint32_t lastSamplesPerChunk = 0; |
| |
| if (mIsAudio) { |
| prctl(PR_SET_NAME, (unsigned long)"AudioTrackEncoding", 0, 0, 0); |
| } else if (mIsVideo) { |
| prctl(PR_SET_NAME, (unsigned long)"VideoTrackEncoding", 0, 0, 0); |
| } else { |
| prctl(PR_SET_NAME, (unsigned long)"MetadataTrackEncoding", 0, 0, 0); |
| } |
| |
| if (mOwner->isRealTimeRecording()) { |
| androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO); |
| } |
| |
| sp<MetaData> meta_data; |
| |
| status_t err = OK; |
| MediaBufferBase *buffer; |
| const char *trackName = getTrackType(); |
| while (!mDone && (err = mSource->read(&buffer)) == OK) { |
| if (buffer->range_length() == 0) { |
| buffer->release(); |
| buffer = NULL; |
| ++nZeroLengthFrames; |
| continue; |
| } |
| |
| // If the codec specific data has not been received yet, delay pause. |
| // After the codec specific data is received, discard what we received |
| // when the track is to be paused. |
| if (mPaused && !mResumed) { |
| buffer->release(); |
| buffer = NULL; |
| continue; |
| } |
| |
| ++count; |
| |
| int32_t isCodecConfig; |
| if (buffer->meta_data().findInt32(kKeyIsCodecConfig, &isCodecConfig) |
| && isCodecConfig) { |
| // if config format (at track addition) already had CSD, keep that |
| // UNLESS we have not received any frames yet. |
| // TODO: for now the entire CSD has to come in one frame for encoders, even though |
| // they need to be spread out for decoders. |
| if (mGotAllCodecSpecificData && nActualFrames > 0) { |
| ALOGI("ignoring additional CSD for video track after first frame"); |
| } else { |
| mMeta = mSource->getFormat(); // get output format after format change |
| status_t err; |
| if (mIsAvc) { |
| err = makeAVCCodecSpecificData( |
| (const uint8_t *)buffer->data() |
| + buffer->range_offset(), |
| buffer->range_length()); |
| } else if (mIsHevc || mIsHeic) { |
| err = makeHEVCCodecSpecificData( |
| (const uint8_t *)buffer->data() |
| + buffer->range_offset(), |
| buffer->range_length()); |
| } else if (mIsMPEG4) { |
| copyCodecSpecificData((const uint8_t *)buffer->data() + buffer->range_offset(), |
| buffer->range_length()); |
| } |
| } |
| |
| buffer->release(); |
| buffer = NULL; |
| if (OK != err) { |
| mSource->stop(); |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_ERROR, |
| mTrackId | MEDIA_RECORDER_TRACK_ERROR_GENERAL, err); |
| break; |
| } |
| |
| mGotAllCodecSpecificData = true; |
| continue; |
| } |
| |
| // Per-frame metadata sample's size must be smaller than max allowed. |
| if (!mIsVideo && !mIsAudio && !mIsHeic && |
| buffer->range_length() >= kMaxMetadataSize) { |
| ALOGW("Buffer size is %zu. Maximum metadata buffer size is %lld for %s track", |
| buffer->range_length(), (long long)kMaxMetadataSize, trackName); |
| buffer->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| bool isExif = false; |
| int32_t isMuxerData; |
| if (buffer->meta_data().findInt32(kKeyIsMuxerData, &isMuxerData) && isMuxerData) { |
| // We only support one type of muxer data, which is Exif data block. |
| isExif = isExifData(buffer); |
| if (!isExif) { |
| ALOGW("Ignoring bad Exif data block"); |
| buffer->release(); |
| buffer = NULL; |
| continue; |
| } |
| } |
| |
| ++nActualFrames; |
| |
| // Make a deep copy of the MediaBuffer and Metadata and release |
| // the original as soon as we can |
| MediaBuffer *copy = new MediaBuffer(buffer->range_length()); |
| memcpy(copy->data(), (uint8_t *)buffer->data() + buffer->range_offset(), |
| buffer->range_length()); |
| copy->set_range(0, buffer->range_length()); |
| meta_data = new MetaData(buffer->meta_data()); |
| buffer->release(); |
| buffer = NULL; |
| |
| if (isExif) { |
| copy->meta_data().setInt32(kKeyIsExif, 1); |
| } |
| bool usePrefix = this->usePrefix() && !isExif; |
| |
| if (usePrefix) StripStartcode(copy); |
| |
| size_t sampleSize = copy->range_length(); |
| if (usePrefix) { |
| if (mOwner->useNalLengthFour()) { |
| sampleSize += 4; |
| } else { |
| sampleSize += 2; |
| } |
| } |
| |
| // Max file size or duration handling |
| mMdatSizeBytes += sampleSize; |
| updateTrackSizeEstimate(); |
| |
| if (mOwner->exceedsFileSizeLimit()) { |
| if (mOwner->switchFd() != OK) { |
| ALOGW("Recorded file size exceeds limit %" PRId64 "bytes", |
| mOwner->mMaxFileSizeLimitBytes); |
| mSource->stop(); |
| mOwner->notify( |
| MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0); |
| } else { |
| ALOGV("%s Current recorded file size exceeds limit %" PRId64 "bytes. Switching output", |
| getTrackType(), mOwner->mMaxFileSizeLimitBytes); |
| } |
| copy->release(); |
| break; |
| } |
| |
| if (mOwner->exceedsFileDurationLimit()) { |
| ALOGW("Recorded file duration exceeds limit %" PRId64 "microseconds", |
| mOwner->mMaxFileDurationLimitUs); |
| mOwner->notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_DURATION_REACHED, 0); |
| copy->release(); |
| mSource->stop(); |
| break; |
| } |
| |
| if (mOwner->approachingFileSizeLimit()) { |
| mOwner->notifyApproachingLimit(); |
| } |
| |
| int32_t isSync = false; |
| meta_data->findInt32(kKeyIsSyncFrame, &isSync); |
| CHECK(meta_data->findInt64(kKeyTime, ×tampUs)); |
| |
| // For video, skip the first several non-key frames until getting the first key frame. |
| if (mIsVideo && !mGotStartKeyFrame && !isSync) { |
| ALOGD("Video skip non-key frame"); |
| copy->release(); |
| continue; |
| } |
| if (mIsVideo && isSync) { |
| mGotStartKeyFrame = true; |
| } |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| if (!mIsHeic) { |
| if (mStszTableEntries->count() == 0) { |
| mFirstSampleTimeRealUs = systemTime() / 1000; |
| mStartTimestampUs = timestampUs; |
| mOwner->setStartTimestampUs(mStartTimestampUs); |
| previousPausedDurationUs = mStartTimestampUs; |
| } |
| |
| if (mResumed) { |
| int64_t durExcludingEarlierPausesUs = timestampUs - previousPausedDurationUs; |
| if (WARN_UNLESS(durExcludingEarlierPausesUs >= 0ll, "for %s track", trackName)) { |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| int64_t pausedDurationUs = durExcludingEarlierPausesUs - mTrackDurationUs; |
| if (WARN_UNLESS(pausedDurationUs >= lastDurationUs, "for %s track", trackName)) { |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| previousPausedDurationUs += pausedDurationUs - lastDurationUs; |
| mResumed = false; |
| } |
| TimestampDebugHelperEntry timestampDebugEntry; |
| timestampUs -= previousPausedDurationUs; |
| timestampDebugEntry.pts = timestampUs; |
| if (WARN_UNLESS(timestampUs >= 0ll, "for %s track", trackName)) { |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| if (mIsVideo) { |
| /* |
| * Composition time: timestampUs |
| * Decoding time: decodingTimeUs |
| * Composition time offset = composition time - decoding time |
| */ |
| int64_t decodingTimeUs; |
| CHECK(meta_data->findInt64(kKeyDecodingTime, &decodingTimeUs)); |
| decodingTimeUs -= previousPausedDurationUs; |
| |
| // ensure non-negative, monotonic decoding time |
| if (mLastDecodingTimeUs < 0) { |
| decodingTimeUs = std::max((int64_t)0, decodingTimeUs); |
| } else { |
| // increase decoding time by at least the larger vaule of 1 tick and |
| // 0.1 milliseconds. This needs to take into account the possible |
| // delta adjustment in DurationTicks in below. |
| decodingTimeUs = std::max(mLastDecodingTimeUs + |
| std::max(100, divUp(1000000, mTimeScale)), decodingTimeUs); |
| } |
| |
| mLastDecodingTimeUs = decodingTimeUs; |
| timestampDebugEntry.dts = decodingTimeUs; |
| timestampDebugEntry.frameType = isSync ? "Key frame" : "Non-Key frame"; |
| // Insert the timestamp into the mTimestampDebugHelper |
| if (mTimestampDebugHelper.size() >= kTimestampDebugCount) { |
| mTimestampDebugHelper.pop_front(); |
| } |
| mTimestampDebugHelper.push_back(timestampDebugEntry); |
| |
| cttsOffsetTimeUs = |
| timestampUs + kMaxCttsOffsetTimeUs - decodingTimeUs; |
| if (WARN_UNLESS(cttsOffsetTimeUs >= 0ll, "for %s track", trackName)) { |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| timestampUs = decodingTimeUs; |
| ALOGV("decoding time: %" PRId64 " and ctts offset time: %" PRId64, |
| timestampUs, cttsOffsetTimeUs); |
| |
| // Update ctts box table if necessary |
| currCttsOffsetTimeTicks = |
| (cttsOffsetTimeUs * mTimeScale + 500000LL) / 1000000LL; |
| if (WARN_UNLESS(currCttsOffsetTimeTicks <= 0x0FFFFFFFFLL, "for %s track", trackName)) { |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| if (mStszTableEntries->count() == 0) { |
| // Force the first ctts table entry to have one single entry |
| // so that we can do adjustment for the initial track start |
| // time offset easily in writeCttsBox(). |
| lastCttsOffsetTimeTicks = currCttsOffsetTimeTicks; |
| addOneCttsTableEntry(1, currCttsOffsetTimeTicks); |
| cttsSampleCount = 0; // No sample in ctts box is pending |
| } else { |
| if (currCttsOffsetTimeTicks != lastCttsOffsetTimeTicks) { |
| addOneCttsTableEntry(cttsSampleCount, lastCttsOffsetTimeTicks); |
| lastCttsOffsetTimeTicks = currCttsOffsetTimeTicks; |
| cttsSampleCount = 1; // One sample in ctts box is pending |
| } else { |
| ++cttsSampleCount; |
| } |
| } |
| |
| // Update ctts time offset range |
| if (mStszTableEntries->count() == 0) { |
| mMinCttsOffsetTicks = currCttsOffsetTimeTicks; |
| mMaxCttsOffsetTicks = currCttsOffsetTimeTicks; |
| } else { |
| if (currCttsOffsetTimeTicks > mMaxCttsOffsetTicks) { |
| mMaxCttsOffsetTicks = currCttsOffsetTimeTicks; |
| } else if (currCttsOffsetTimeTicks < mMinCttsOffsetTicks) { |
| mMinCttsOffsetTicks = currCttsOffsetTimeTicks; |
| mMinCttsOffsetTimeUs = cttsOffsetTimeUs; |
| } |
| } |
| } |
| |
| if (mOwner->isRealTimeRecording()) { |
| if (mIsAudio) { |
| updateDriftTime(meta_data); |
| } |
| } |
| |
| if (WARN_UNLESS(timestampUs >= 0ll, "for %s track", trackName)) { |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| ALOGV("%s media time stamp: %" PRId64 " and previous paused duration %" PRId64, |
| trackName, timestampUs, previousPausedDurationUs); |
| if (timestampUs > mTrackDurationUs) { |
| mTrackDurationUs = timestampUs; |
| } |
| |
| // We need to use the time scale based ticks, rather than the |
| // timestamp itself to determine whether we have to use a new |
| // stts entry, since we may have rounding errors. |
| // The calculation is intended to reduce the accumulated |
| // rounding errors. |
| currDurationTicks = |
| ((timestampUs * mTimeScale + 500000LL) / 1000000LL - |
| (lastTimestampUs * mTimeScale + 500000LL) / 1000000LL); |
| if (currDurationTicks < 0ll) { |
| ALOGE("do not support out of order frames (timestamp: %lld < last: %lld for %s track", |
| (long long)timestampUs, (long long)lastTimestampUs, trackName); |
| copy->release(); |
| mSource->stop(); |
| mIsMalformed = true; |
| break; |
| } |
| |
| // if the duration is different for this sample, see if it is close enough to the previous |
| // duration that we can fudge it and use the same value, to avoid filling the stts table |
| // with lots of near-identical entries. |
| // "close enough" here means that the current duration needs to be adjusted by less |
| // than 0.1 milliseconds |
| if (lastDurationTicks && (currDurationTicks != lastDurationTicks)) { |
| int64_t deltaUs = ((lastDurationTicks - currDurationTicks) * 1000000LL |
| + (mTimeScale / 2)) / mTimeScale; |
| if (deltaUs > -100 && deltaUs < 100) { |
| // use previous ticks, and adjust timestamp as if it was actually that number |
| // of ticks |
| currDurationTicks = lastDurationTicks; |
| timestampUs += deltaUs; |
| } |
| } |
| mStszTableEntries->add(htonl(sampleSize)); |
| if (mStszTableEntries->count() > 2) { |
| |
| // Force the first sample to have its own stts entry so that |
| // we can adjust its value later to maintain the A/V sync. |
| if (mStszTableEntries->count() == 3 || currDurationTicks != lastDurationTicks) { |
| addOneSttsTableEntry(sampleCount, lastDurationTicks); |
| sampleCount = 1; |
| } else { |
| ++sampleCount; |
| } |
| |
| } |
| if (mSamplesHaveSameSize) { |
| if (mStszTableEntries->count() >= 2 && previousSampleSize != sampleSize) { |
| mSamplesHaveSameSize = false; |
| } |
| previousSampleSize = sampleSize; |
| } |
| ALOGV("%s timestampUs/lastTimestampUs: %" PRId64 "/%" PRId64, |
| trackName, timestampUs, lastTimestampUs); |
| lastDurationUs = timestampUs - lastTimestampUs; |
| lastDurationTicks = currDurationTicks; |
| lastTimestampUs = timestampUs; |
| |
| if (isSync != 0) { |
| addOneStssTableEntry(mStszTableEntries->count()); |
| } |
| |
| if (mTrackingProgressStatus) { |
| if (mPreviousTrackTimeUs <= 0) { |
| mPreviousTrackTimeUs = mStartTimestampUs; |
| } |
| trackProgressStatus(timestampUs); |
| } |
| } |
| if (!hasMultipleTracks) { |
| size_t bytesWritten; |
| off64_t offset = mOwner->addSample_l(copy, usePrefix, isExif, &bytesWritten); |
| |
| if (mIsHeic) { |
| addItemOffsetAndSize(offset, bytesWritten, isExif); |
| } else { |
| uint32_t count = (mOwner->use32BitFileOffset() |
| ? mStcoTableEntries->count() |
| : mCo64TableEntries->count()); |
| |
| if (count == 0) { |
| addChunkOffset(offset); |
| } |
| } |
| copy->release(); |
| copy = NULL; |
| continue; |
| } |
| |
| mChunkSamples.push_back(copy); |
| if (mIsHeic) { |
| bufferChunk(0 /*timestampUs*/); |
| ++nChunks; |
| } else if (interleaveDurationUs == 0) { |
| addOneStscTableEntry(++nChunks, 1); |
| bufferChunk(timestampUs); |
| } else { |
| if (chunkTimestampUs == 0) { |
| chunkTimestampUs = timestampUs; |
| } else { |
| int64_t chunkDurationUs = timestampUs - chunkTimestampUs; |
| if (chunkDurationUs > interleaveDurationUs) { |
| if (chunkDurationUs > mMaxChunkDurationUs) { |
| mMaxChunkDurationUs = chunkDurationUs; |
| } |
| ++nChunks; |
| if (nChunks == 1 || // First chunk |
| lastSamplesPerChunk != mChunkSamples.size()) { |
| lastSamplesPerChunk = mChunkSamples.size(); |
| addOneStscTableEntry(nChunks, lastSamplesPerChunk); |
| } |
| bufferChunk(timestampUs); |
| chunkTimestampUs = timestampUs; |
| } |
| } |
| } |
| |
| } |
| |
| if (isTrackMalFormed()) { |
| dumpTimeStamps(); |
| err = ERROR_MALFORMED; |
| } |
| |
| mOwner->trackProgressStatus(mTrackId, -1, err); |
| |
| if (mIsHeic) { |
| if (!mChunkSamples.empty()) { |
| bufferChunk(0); |
| ++nChunks; |
| } |
| } else { |
| // Last chunk |
| if (!hasMultipleTracks) { |
| addOneStscTableEntry(1, mStszTableEntries->count()); |
| } else if (!mChunkSamples.empty()) { |
| addOneStscTableEntry(++nChunks, mChunkSamples.size()); |
| bufferChunk(timestampUs); |
| } |
| |
| // We don't really know how long the last frame lasts, since |
| // there is no frame time after it, just repeat the previous |
| // frame's duration. |
| if (mStszTableEntries->count() == 1) { |
| lastDurationUs = 0; // A single sample's duration |
| lastDurationTicks = 0; |
| } else { |
| ++sampleCount; // Count for the last sample |
| } |
| |
| if (mStszTableEntries->count() <= 2) { |
| addOneSttsTableEntry(1, lastDurationTicks); |
| if (sampleCount - 1 > 0) { |
| addOneSttsTableEntry(sampleCount - 1, lastDurationTicks); |
| } |
| } else { |
| addOneSttsTableEntry(sampleCount, lastDurationTicks); |
| } |
| |
| // The last ctts box may not have been written yet, and this |
| // is to make sure that we write out the last ctts box. |
| if (currCttsOffsetTimeTicks == lastCttsOffsetTimeTicks) { |
| if (cttsSampleCount > 0) { |
| addOneCttsTableEntry(cttsSampleCount, lastCttsOffsetTimeTicks); |
| } |
| } |
| |
| mTrackDurationUs += lastDurationUs; |
| } |
| mReachedEOS = true; |
| |
| sendTrackSummary(hasMultipleTracks); |
| |
| ALOGI("Received total/0-length (%d/%d) buffers and encoded %d frames. - %s", |
| count, nZeroLengthFrames, mStszTableEntries->count(), trackName); |
| if (mIsAudio) { |
| ALOGI("Audio track drift time: %" PRId64 " us", mOwner->getDriftTimeUs()); |
| } |
| |
| if (err == ERROR_END_OF_STREAM) { |
| return OK; |
| } |
| return err; |
| } |
| |
| bool MPEG4Writer::Track::isTrackMalFormed() const { |
| if (mIsMalformed) { |
| return true; |
| } |
| |
| if (!mIsHeic && mStszTableEntries->count() == 0) { // no samples written |
| ALOGE("The number of recorded samples is 0"); |
| return true; |
| } |
| |
| if (mIsVideo && mStssTableEntries->count() == 0) { // no sync frames for video |
| ALOGE("There are no sync frames for video track"); |
| return true; |
| } |
| |
| if (OK != checkCodecSpecificData()) { // no codec specific data |
| return true; |
| } |
| |
| return false; |
| } |
| |
| void MPEG4Writer::Track::sendTrackSummary(bool hasMultipleTracks) { |
| |
| // Send track summary only if test mode is enabled. |
| if (!isTestModeEnabled()) { |
| return; |
| } |
| |
| int trackNum = (mTrackId << 28); |
| |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_TYPE, |
| mIsAudio ? 0: 1); |
| |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_DURATION_MS, |
| mTrackDurationUs / 1000); |
| |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES, |
| mStszTableEntries->count()); |
| |
| { |
| // The system delay time excluding the requested initial delay that |
| // is used to eliminate the recording sound. |
| int64_t startTimeOffsetUs = mOwner->getStartTimeOffsetMs() * 1000LL; |
| if (startTimeOffsetUs < 0) { // Start time offset was not set |
| startTimeOffsetUs = kInitialDelayTimeUs; |
| } |
| int64_t initialDelayUs = |
| mFirstSampleTimeRealUs - mStartTimeRealUs - startTimeOffsetUs; |
| |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS, |
| (initialDelayUs) / 1000); |
| } |
| |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES, |
| mMdatSizeBytes / 1024); |
| |
| if (hasMultipleTracks) { |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS, |
| mMaxChunkDurationUs / 1000); |
| |
| int64_t moovStartTimeUs = mOwner->getStartTimestampUs(); |
| if (mStartTimestampUs != moovStartTimeUs) { |
| int64_t startTimeOffsetUs = mStartTimestampUs - moovStartTimeUs; |
| mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS, |
| startTimeOffsetUs / 1000); |
| } |
| } |
| } |
| |
| void MPEG4Writer::Track::trackProgressStatus(int64_t timeUs, status_t err) { |
| ALOGV("trackProgressStatus: %" PRId64 " us", timeUs); |
| |
| if (mTrackEveryTimeDurationUs > 0 && |
| timeUs - mPreviousTrackTimeUs >= mTrackEveryTimeDurationUs) { |
| ALOGV("Fire time tracking progress status at %" PRId64 " us", timeUs); |
| mOwner->trackProgressStatus(mTrackId, timeUs - mPreviousTrackTimeUs, err); |
| mPreviousTrackTimeUs = timeUs; |
| } |
| } |
| |
| void MPEG4Writer::trackProgressStatus( |
| size_t trackId, int64_t timeUs, status_t err) { |
| Mutex::Autolock lock(mLock); |
| int32_t trackNum = (trackId << 28); |
| |
| // Error notification |
| // Do not consider ERROR_END_OF_STREAM an error |
| if (err != OK && err != ERROR_END_OF_STREAM) { |
| notify(MEDIA_RECORDER_TRACK_EVENT_ERROR, |
| trackNum | MEDIA_RECORDER_TRACK_ERROR_GENERAL, |
| err); |
| return; |
| } |
| |
| if (timeUs == -1) { |
| // Send completion notification |
| notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS, |
| err); |
| } else { |
| // Send progress status |
| notify(MEDIA_RECORDER_TRACK_EVENT_INFO, |
| trackNum | MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME, |
| timeUs / 1000); |
| } |
| } |
| |
| void MPEG4Writer::setDriftTimeUs(int64_t driftTimeUs) { |
| ALOGV("setDriftTimeUs: %" PRId64 " us", driftTimeUs); |
| Mutex::Autolock autolock(mLock); |
| mDriftTimeUs = driftTimeUs; |
| } |
| |
| int64_t MPEG4Writer::getDriftTimeUs() { |
| ALOGV("getDriftTimeUs: %" PRId64 " us", mDriftTimeUs); |
| Mutex::Autolock autolock(mLock); |
| return mDriftTimeUs; |
| } |
| |
| bool MPEG4Writer::isRealTimeRecording() const { |
| return mIsRealTimeRecording; |
| } |
| |
| bool MPEG4Writer::useNalLengthFour() { |
| return mUse4ByteNalLength; |
| } |
| |
| void MPEG4Writer::Track::bufferChunk(int64_t timestampUs) { |
| ALOGV("bufferChunk"); |
| |
| Chunk chunk(this, timestampUs, mChunkSamples); |
| mOwner->bufferChunk(chunk); |
| mChunkSamples.clear(); |
| } |
| |
| int64_t MPEG4Writer::Track::getDurationUs() const { |
| return mTrackDurationUs + getStartTimeOffsetTimeUs(); |
| } |
| |
| int64_t MPEG4Writer::Track::getEstimatedTrackSizeBytes() const { |
| return mEstimatedTrackSizeBytes; |
| } |
| |
| int32_t MPEG4Writer::Track::getMetaSizeIncrease( |
| int32_t angle, int32_t trackCount) const { |
| CHECK(mIsHeic); |
| |
| int32_t grid = (mTileWidth > 0); |
| int32_t rotate = (angle > 0); |
| |
| // Note that the rotation angle is in the file meta, and we don't have |
| // it until start, so here the calculation has to assume rotation. |
| |
| // increase to ipco |
| int32_t increase = 20 * (grid + 1) // 'ispe' property |
| + (8 + mCodecSpecificDataSize) // 'hvcC' property |
| ; |
| |
| if (rotate) { |
| increase += 9; // 'irot' property (worst case) |
| } |
| |
| // increase to iref and idat |
| if (grid) { |
| increase += (12 + mNumTiles * 2) // 'dimg' in iref |
| + 12; // ImageGrid in 'idat' (worst case) |
| } |
| |
| increase += (12 + 2); // 'cdsc' in iref |
| |
| // increase to iloc, iinf |
| increase += (16 // increase to 'iloc' |
| + 21) // increase to 'iinf' |
| * (mNumTiles + grid + 1); // "+1" is for 'Exif' |
| |
| // When total # of properties is > 127, the properties id becomes 2-byte. |
| // We write 4 properties at most for each image (2x'ispe', 1x'hvcC', 1x'irot'). |
| // Set the threshold to be 30. |
| int32_t propBytes = trackCount > 30 ? 2 : 1; |
| |
| // increase to ipma |
| increase += (3 + 2 * propBytes) * mNumTiles // 'ispe' + 'hvcC' |
| + grid * (3 + propBytes) // 'ispe' for grid |
| + rotate * propBytes; // 'irot' (either on grid or tile) |
| |
| return increase; |
| } |
| |
| status_t MPEG4Writer::Track::checkCodecSpecificData() const { |
| const char *mime; |
| CHECK(mMeta->findCString(kKeyMIMEType, &mime)); |
| if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime) || |
| !strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime) || |
| !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime) || |
| !strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime) || |
| !strcasecmp(MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC, mime)) { |
| if (!mCodecSpecificData || |
| mCodecSpecificDataSize <= 0) { |
| ALOGE("Missing codec specific data"); |
| return ERROR_MALFORMED; |
| } |
| } else { |
| if (mCodecSpecificData || |
| mCodecSpecificDataSize > 0) { |
| ALOGE("Unexepected codec specific data found"); |
| return ERROR_MALFORMED; |
| } |
| } |
| return OK; |
| } |
| |
| const char *MPEG4Writer::Track::getTrackType() const { |
| return mIsAudio ? "Audio" : |
| mIsVideo ? "Video" : |
| mIsHeic ? "Image" : |
| "Metadata"; |
| } |
| |
| void MPEG4Writer::Track::writeTrackHeader(bool use32BitOffset) { |
| uint32_t now = getMpeg4Time(); |
| mOwner->beginBox("trak"); |
| writeTkhdBox(now); |
| mOwner->beginBox("mdia"); |
| writeMdhdBox(now); |
| writeHdlrBox(); |
| mOwner->beginBox("minf"); |
| if (mIsAudio) { |
| writeSmhdBox(); |
| } else if (mIsVideo) { |
| writeVmhdBox(); |
| } else { |
| writeNmhdBox(); |
| } |
| writeDinfBox(); |
| writeStblBox(use32BitOffset); |
| mOwner->endBox(); // minf |
| mOwner->endBox(); // mdia |
| mOwner->endBox(); // trak |
| } |
| |
| int64_t MPEG4Writer::Track::getMinCttsOffsetTimeUs() { |
| // For video tracks with ctts table, this should return the minimum ctts |
| // offset in the table. For non-video tracks or video tracks without ctts |
| // table, this will return kMaxCttsOffsetTimeUs. |
| if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) { |
| return kMaxCttsOffsetTimeUs; |
| } |
| return mMinCttsOffsetTimeUs; |
| } |
| |
| void MPEG4Writer::Track::writeStblBox(bool use32BitOffset) { |
| mOwner->beginBox("stbl"); |
| mOwner->beginBox("stsd"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt32(1); // entry count |
| if (mIsAudio) { |
| writeAudioFourCCBox(); |
| } else if (mIsVideo) { |
| writeVideoFourCCBox(); |
| } else { |
| writeMetadataFourCCBox(); |
| } |
| mOwner->endBox(); // stsd |
| writeSttsBox(); |
| if (mIsVideo) { |
| writeCttsBox(); |
| writeStssBox(); |
| } |
| writeStszBox(); |
| writeStscBox(); |
| writeStcoBox(use32BitOffset); |
| mOwner->endBox(); // stbl |
| } |
| |
| void MPEG4Writer::Track::writeMetadataFourCCBox() { |
| const char *mime; |
| bool success = mMeta->findCString(kKeyMIMEType, &mime); |
| CHECK(success); |
| const char *fourcc = getFourCCForMime(mime); |
| if (fourcc == NULL) { |
| ALOGE("Unknown mime type '%s'.", mime); |
| TRESPASS(); |
| } |
| mOwner->beginBox(fourcc); // TextMetaDataSampleEntry |
| mOwner->writeCString(mime); // metadata mime_format |
| mOwner->endBox(); // mett |
| } |
| |
| void MPEG4Writer::Track::writeVideoFourCCBox() { |
| const char *mime; |
| bool success = mMeta->findCString(kKeyMIMEType, &mime); |
| CHECK(success); |
| const char *fourcc = getFourCCForMime(mime); |
| if (fourcc == NULL) { |
| ALOGE("Unknown mime type '%s'.", mime); |
| TRESPASS(); |
| } |
| |
| mOwner->beginBox(fourcc); // video format |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt16(0); // reserved |
| mOwner->writeInt16(1); // data ref index |
| mOwner->writeInt16(0); // predefined |
| mOwner->writeInt16(0); // reserved |
| mOwner->writeInt32(0); // predefined |
| mOwner->writeInt32(0); // predefined |
| mOwner->writeInt32(0); // predefined |
| |
| int32_t width, height; |
| success = mMeta->findInt32(kKeyWidth, &width); |
| success = success && mMeta->findInt32(kKeyHeight, &height); |
| CHECK(success); |
| |
| mOwner->writeInt16(width); |
| mOwner->writeInt16(height); |
| mOwner->writeInt32(0x480000); // horiz resolution |
| mOwner->writeInt32(0x480000); // vert resolution |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt16(1); // frame count |
| mOwner->writeInt8(0); // compressor string length |
| mOwner->write(" ", 31); |
| mOwner->writeInt16(0x18); // depth |
| mOwner->writeInt16(-1); // predefined |
| |
| if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) { |
| writeMp4vEsdsBox(); |
| } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) { |
| writeD263Box(); |
| } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) { |
| writeAvccBox(); |
| } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) { |
| writeHvccBox(); |
| } |
| |
| writePaspBox(); |
| writeColrBox(); |
| mOwner->endBox(); // mp4v, s263 or avc1 |
| } |
| |
| void MPEG4Writer::Track::writeColrBox() { |
| ColorAspects aspects; |
| memset(&aspects, 0, sizeof(aspects)); |
| // TRICKY: using | instead of || because we want to execute all findInt32-s |
| if (mMeta->findInt32(kKeyColorPrimaries, (int32_t*)&aspects.mPrimaries) |
| | mMeta->findInt32(kKeyTransferFunction, (int32_t*)&aspects.mTransfer) |
| | mMeta->findInt32(kKeyColorMatrix, (int32_t*)&aspects.mMatrixCoeffs) |
| | mMeta->findInt32(kKeyColorRange, (int32_t*)&aspects.mRange)) { |
| int32_t primaries, transfer, coeffs; |
| bool fullRange; |
| ColorUtils::convertCodecColorAspectsToIsoAspects( |
| aspects, &primaries, &transfer, &coeffs, &fullRange); |
| mOwner->beginBox("colr"); |
| mOwner->writeFourcc("nclx"); |
| mOwner->writeInt16(primaries); |
| mOwner->writeInt16(transfer); |
| mOwner->writeInt16(coeffs); |
| mOwner->writeInt8(int8_t(fullRange ? 0x80 : 0x0)); |
| mOwner->endBox(); // colr |
| } |
| } |
| |
| void MPEG4Writer::Track::writeAudioFourCCBox() { |
| const char *mime; |
| bool success = mMeta->findCString(kKeyMIMEType, &mime); |
| CHECK(success); |
| const char *fourcc = getFourCCForMime(mime); |
| if (fourcc == NULL) { |
| ALOGE("Unknown mime type '%s'.", mime); |
| TRESPASS(); |
| } |
| |
| mOwner->beginBox(fourcc); // audio format |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt16(0); // reserved |
| mOwner->writeInt16(0x1); // data ref index |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt32(0); // reserved |
| int32_t nChannels; |
| CHECK_EQ(true, mMeta->findInt32(kKeyChannelCount, &nChannels)); |
| mOwner->writeInt16(nChannels); // channel count |
| mOwner->writeInt16(16); // sample size |
| mOwner->writeInt16(0); // predefined |
| mOwner->writeInt16(0); // reserved |
| |
| int32_t samplerate; |
| success = mMeta->findInt32(kKeySampleRate, &samplerate); |
| CHECK(success); |
| mOwner->writeInt32(samplerate << 16); |
| if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime)) { |
| writeMp4aEsdsBox(); |
| } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, mime) || |
| !strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, mime)) { |
| writeDamrBox(); |
| } |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeMp4aEsdsBox() { |
| mOwner->beginBox("esds"); |
| CHECK(mCodecSpecificData); |
| CHECK_GT(mCodecSpecificDataSize, 0u); |
| |
| // Make sure all sizes encode to a single byte. |
| CHECK_LT(mCodecSpecificDataSize + 23, 128u); |
| |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt8(0x03); // ES_DescrTag |
| mOwner->writeInt8(23 + mCodecSpecificDataSize); |
| mOwner->writeInt16(0x0000);// ES_ID |
| mOwner->writeInt8(0x00); |
| |
| mOwner->writeInt8(0x04); // DecoderConfigDescrTag |
| mOwner->writeInt8(15 + mCodecSpecificDataSize); |
| mOwner->writeInt8(0x40); // objectTypeIndication ISO/IEC 14492-2 |
| mOwner->writeInt8(0x15); // streamType AudioStream |
| |
| mOwner->writeInt16(0x03); // XXX |
| mOwner->writeInt8(0x00); // buffer size 24-bit (0x300) |
| |
| int32_t avgBitrate = 0; |
| (void)mMeta->findInt32(kKeyBitRate, &avgBitrate); |
| int32_t maxBitrate = 0; |
| (void)mMeta->findInt32(kKeyMaxBitRate, &maxBitrate); |
| mOwner->writeInt32(maxBitrate); |
| mOwner->writeInt32(avgBitrate); |
| |
| mOwner->writeInt8(0x05); // DecoderSpecificInfoTag |
| mOwner->writeInt8(mCodecSpecificDataSize); |
| mOwner->write(mCodecSpecificData, mCodecSpecificDataSize); |
| |
| static const uint8_t kData2[] = { |
| 0x06, // SLConfigDescriptorTag |
| 0x01, |
| 0x02 |
| }; |
| mOwner->write(kData2, sizeof(kData2)); |
| |
| mOwner->endBox(); // esds |
| } |
| |
| void MPEG4Writer::Track::writeMp4vEsdsBox() { |
| CHECK(mCodecSpecificData); |
| CHECK_GT(mCodecSpecificDataSize, 0u); |
| |
| // Make sure all sizes encode to a single byte. |
| CHECK_LT(23 + mCodecSpecificDataSize, 128u); |
| |
| mOwner->beginBox("esds"); |
| |
| mOwner->writeInt32(0); // version=0, flags=0 |
| |
| mOwner->writeInt8(0x03); // ES_DescrTag |
| mOwner->writeInt8(23 + mCodecSpecificDataSize); |
| mOwner->writeInt16(0x0000); // ES_ID |
| mOwner->writeInt8(0x1f); |
| |
| mOwner->writeInt8(0x04); // DecoderConfigDescrTag |
| mOwner->writeInt8(15 + mCodecSpecificDataSize); |
| mOwner->writeInt8(0x20); // objectTypeIndication ISO/IEC 14492-2 |
| mOwner->writeInt8(0x11); // streamType VisualStream |
| |
| static const uint8_t kData[] = { |
| 0x01, 0x77, 0x00, // buffer size 96000 bytes |
| }; |
| mOwner->write(kData, sizeof(kData)); |
| |
| int32_t avgBitrate = 0; |
| (void)mMeta->findInt32(kKeyBitRate, &avgBitrate); |
| int32_t maxBitrate = 0; |
| (void)mMeta->findInt32(kKeyMaxBitRate, &maxBitrate); |
| mOwner->writeInt32(maxBitrate); |
| mOwner->writeInt32(avgBitrate); |
| |
| mOwner->writeInt8(0x05); // DecoderSpecificInfoTag |
| |
| mOwner->writeInt8(mCodecSpecificDataSize); |
| mOwner->write(mCodecSpecificData, mCodecSpecificDataSize); |
| |
| static const uint8_t kData2[] = { |
| 0x06, // SLConfigDescriptorTag |
| 0x01, |
| 0x02 |
| }; |
| mOwner->write(kData2, sizeof(kData2)); |
| |
| mOwner->endBox(); // esds |
| } |
| |
| void MPEG4Writer::Track::writeTkhdBox(uint32_t now) { |
| mOwner->beginBox("tkhd"); |
| // Flags = 7 to indicate that the track is enabled, and |
| // part of the presentation |
| mOwner->writeInt32(0x07); // version=0, flags=7 |
| mOwner->writeInt32(now); // creation time |
| mOwner->writeInt32(now); // modification time |
| mOwner->writeInt32(mTrackId); // track id starts with 1 |
| mOwner->writeInt32(0); // reserved |
| int64_t trakDurationUs = getDurationUs(); |
| int32_t mvhdTimeScale = mOwner->getTimeScale(); |
| int32_t tkhdDuration = |
| (trakDurationUs * mvhdTimeScale + 5E5) / 1E6; |
| mOwner->writeInt32(tkhdDuration); // in mvhd timescale |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt16(0); // layer |
| mOwner->writeInt16(0); // alternate group |
| mOwner->writeInt16(mIsAudio ? 0x100 : 0); // volume |
| mOwner->writeInt16(0); // reserved |
| |
| mOwner->writeCompositionMatrix(mRotation); // matrix |
| |
| if (!mIsVideo) { |
| mOwner->writeInt32(0); |
| mOwner->writeInt32(0); |
| } else { |
| int32_t width, height; |
| bool success = mMeta->findInt32(kKeyDisplayWidth, &width); |
| success = success && mMeta->findInt32(kKeyDisplayHeight, &height); |
| |
| // Use width/height if display width/height are not present. |
| if (!success) { |
| success = mMeta->findInt32(kKeyWidth, &width); |
| success = success && mMeta->findInt32(kKeyHeight, &height); |
| } |
| CHECK(success); |
| |
| mOwner->writeInt32(width << 16); // 32-bit fixed-point value |
| mOwner->writeInt32(height << 16); // 32-bit fixed-point value |
| } |
| mOwner->endBox(); // tkhd |
| } |
| |
| void MPEG4Writer::Track::writeVmhdBox() { |
| mOwner->beginBox("vmhd"); |
| mOwner->writeInt32(0x01); // version=0, flags=1 |
| mOwner->writeInt16(0); // graphics mode |
| mOwner->writeInt16(0); // opcolor |
| mOwner->writeInt16(0); |
| mOwner->writeInt16(0); |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeSmhdBox() { |
| mOwner->beginBox("smhd"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt16(0); // balance |
| mOwner->writeInt16(0); // reserved |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeNmhdBox() { |
| mOwner->beginBox("nmhd"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeHdlrBox() { |
| mOwner->beginBox("hdlr"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt32(0); // component type: should be mhlr |
| mOwner->writeFourcc(mIsAudio ? "soun" : (mIsVideo ? "vide" : "meta")); // component subtype |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt32(0); // reserved |
| mOwner->writeInt32(0); // reserved |
| // Removing "r" for the name string just makes the string 4 byte aligned |
| mOwner->writeCString(mIsAudio ? "SoundHandle": (mIsVideo ? "VideoHandle" : "MetadHandle")); |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeMdhdBox(uint32_t now) { |
| int64_t trakDurationUs = getDurationUs(); |
| int64_t mdhdDuration = (trakDurationUs * mTimeScale + 5E5) / 1E6; |
| mOwner->beginBox("mdhd"); |
| |
| if (mdhdDuration > UINT32_MAX) { |
| mOwner->writeInt32((1 << 24)); // version=1, flags=0 |
| mOwner->writeInt64((int64_t)now); // creation time |
| mOwner->writeInt64((int64_t)now); // modification time |
| mOwner->writeInt32(mTimeScale); // media timescale |
| mOwner->writeInt64(mdhdDuration); // media timescale |
| } else { |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt32(now); // creation time |
| mOwner->writeInt32(now); // modification time |
| mOwner->writeInt32(mTimeScale); // media timescale |
| mOwner->writeInt32((int32_t)mdhdDuration); // use media timescale |
| } |
| // Language follows the three letter standard ISO-639-2/T |
| // 'e', 'n', 'g' for "English", for instance. |
| // Each character is packed as the difference between its ASCII value and 0x60. |
| // For "English", these are 00101, 01110, 00111. |
| // XXX: Where is the padding bit located: 0x15C7? |
| const char *lang = NULL; |
| int16_t langCode = 0; |
| if (mMeta->findCString(kKeyMediaLanguage, &lang) && lang && strnlen(lang, 3) > 2) { |
| langCode = ((lang[0] & 0x1f) << 10) | ((lang[1] & 0x1f) << 5) | (lang[2] & 0x1f); |
| } |
| mOwner->writeInt16(langCode); // language code |
| mOwner->writeInt16(0); // predefined |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeDamrBox() { |
| // 3gpp2 Spec AMRSampleEntry fields |
| mOwner->beginBox("damr"); |
| mOwner->writeCString(" "); // vendor: 4 bytes |
| mOwner->writeInt8(0); // decoder version |
| mOwner->writeInt16(0x83FF); // mode set: all enabled |
| mOwner->writeInt8(0); // mode change period |
| mOwner->writeInt8(1); // frames per sample |
| mOwner->endBox(); |
| } |
| |
| void MPEG4Writer::Track::writeUrlBox() { |
| // The table index here refers to the sample description index |
| // in the sample table entries. |
| mOwner->beginBox("url "); |
| mOwner->writeInt32(1); // version=0, flags=1 (self-contained) |
| mOwner->endBox(); // url |
| } |
| |
| void MPEG4Writer::Track::writeDrefBox() { |
| mOwner->beginBox("dref"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt32(1); // entry count (either url or urn) |
| writeUrlBox(); |
| mOwner->endBox(); // dref |
| } |
| |
| void MPEG4Writer::Track::writeDinfBox() { |
| mOwner->beginBox("dinf"); |
| writeDrefBox(); |
| mOwner->endBox(); // dinf |
| } |
| |
| void MPEG4Writer::Track::writeAvccBox() { |
| CHECK(mCodecSpecificData); |
| CHECK_GE(mCodecSpecificDataSize, 5u); |
| |
| // Patch avcc's lengthSize field to match the number |
| // of bytes we use to indicate the size of a nal unit. |
| uint8_t *ptr = (uint8_t *)mCodecSpecificData; |
| ptr[4] = (ptr[4] & 0xfc) | (mOwner->useNalLengthFour() ? 3 : 1); |
| mOwner->beginBox("avcC"); |
| mOwner->write(mCodecSpecificData, mCodecSpecificDataSize); |
| mOwner->endBox(); // avcC |
| } |
| |
| |
| void MPEG4Writer::Track::writeHvccBox() { |
| CHECK(mCodecSpecificData); |
| CHECK_GE(mCodecSpecificDataSize, 5u); |
| |
| // Patch avcc's lengthSize field to match the number |
| // of bytes we use to indicate the size of a nal unit. |
| uint8_t *ptr = (uint8_t *)mCodecSpecificData; |
| ptr[21] = (ptr[21] & 0xfc) | (mOwner->useNalLengthFour() ? 3 : 1); |
| mOwner->beginBox("hvcC"); |
| mOwner->write(mCodecSpecificData, mCodecSpecificDataSize); |
| mOwner->endBox(); // hvcC |
| } |
| |
| void MPEG4Writer::Track::writeD263Box() { |
| mOwner->beginBox("d263"); |
| mOwner->writeInt32(0); // vendor |
| mOwner->writeInt8(0); // decoder version |
| mOwner->writeInt8(10); // level: 10 |
| mOwner->writeInt8(0); // profile: 0 |
| mOwner->endBox(); // d263 |
| } |
| |
| // This is useful if the pixel is not square |
| void MPEG4Writer::Track::writePaspBox() { |
| mOwner->beginBox("pasp"); |
| mOwner->writeInt32(1 << 16); // hspacing |
| mOwner->writeInt32(1 << 16); // vspacing |
| mOwner->endBox(); // pasp |
| } |
| |
| int64_t MPEG4Writer::Track::getStartTimeOffsetTimeUs() const { |
| int64_t trackStartTimeOffsetUs = 0; |
| int64_t moovStartTimeUs = mOwner->getStartTimestampUs(); |
| if (mStartTimestampUs != -1 && mStartTimestampUs != moovStartTimeUs) { |
| CHECK_GT(mStartTimestampUs, moovStartTimeUs); |
| trackStartTimeOffsetUs = mStartTimestampUs - moovStartTimeUs; |
| } |
| return trackStartTimeOffsetUs; |
| } |
| |
| int32_t MPEG4Writer::Track::getStartTimeOffsetScaledTime() const { |
| return (getStartTimeOffsetTimeUs() * mTimeScale + 500000LL) / 1000000LL; |
| } |
| |
| void MPEG4Writer::Track::writeSttsBox() { |
| mOwner->beginBox("stts"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) { |
| // For non-vdeio tracks or video tracks without ctts table, |
| // adjust duration of first sample for tracks to account for |
| // first sample not starting at the media start time. |
| // TODO: consider signaling this using some offset |
| // as this is not quite correct. |
| uint32_t duration; |
| CHECK(mSttsTableEntries->get(duration, 1)); |
| duration = htonl(duration); // Back to host byte order |
| mSttsTableEntries->set(htonl(duration + getStartTimeOffsetScaledTime()), 1); |
| } |
| mSttsTableEntries->write(mOwner); |
| mOwner->endBox(); // stts |
| } |
| |
| void MPEG4Writer::Track::writeCttsBox() { |
| // There is no B frame at all |
| if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) { |
| return; |
| } |
| |
| // Do not write ctts box when there is no need to have it. |
| if (mCttsTableEntries->count() == 0) { |
| return; |
| } |
| |
| ALOGV("ctts box has %d entries with range [%" PRId64 ", %" PRId64 "]", |
| mCttsTableEntries->count(), mMinCttsOffsetTicks, mMaxCttsOffsetTicks); |
| |
| mOwner->beginBox("ctts"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| int64_t deltaTimeUs = kMaxCttsOffsetTimeUs - getStartTimeOffsetTimeUs(); |
| int64_t delta = (deltaTimeUs * mTimeScale + 500000LL) / 1000000LL; |
| mCttsTableEntries->adjustEntries([delta](size_t /* ix */, uint32_t (&value)[2]) { |
| // entries are <count, ctts> pairs; adjust only ctts |
| uint32_t duration = htonl(value[1]); // back to host byte order |
| // Prevent overflow and underflow |
| if (delta > duration) { |
| duration = 0; |
| } else if (delta < 0 && UINT32_MAX + delta < duration) { |
| duration = UINT32_MAX; |
| } else { |
| duration -= delta; |
| } |
| value[1] = htonl(duration); |
| }); |
| mCttsTableEntries->write(mOwner); |
| mOwner->endBox(); // ctts |
| } |
| |
| void MPEG4Writer::Track::writeStssBox() { |
| mOwner->beginBox("stss"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mStssTableEntries->write(mOwner); |
| mOwner->endBox(); // stss |
| } |
| |
| void MPEG4Writer::Track::writeStszBox() { |
| mOwner->beginBox("stsz"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mOwner->writeInt32(0); |
| mStszTableEntries->write(mOwner); |
| mOwner->endBox(); // stsz |
| } |
| |
| void MPEG4Writer::Track::writeStscBox() { |
| mOwner->beginBox("stsc"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| mStscTableEntries->write(mOwner); |
| mOwner->endBox(); // stsc |
| } |
| |
| void MPEG4Writer::Track::writeStcoBox(bool use32BitOffset) { |
| mOwner->beginBox(use32BitOffset? "stco": "co64"); |
| mOwner->writeInt32(0); // version=0, flags=0 |
| if (use32BitOffset) { |
| mStcoTableEntries->write(mOwner); |
| } else { |
| mCo64TableEntries->write(mOwner); |
| } |
| mOwner->endBox(); // stco or co64 |
| } |
| |
| void MPEG4Writer::writeUdtaBox() { |
| beginBox("udta"); |
| writeGeoDataBox(); |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeHdlr(const char *handlerType) { |
| beginBox("hdlr"); |
| writeInt32(0); // Version, Flags |
| writeInt32(0); // Predefined |
| writeFourcc(handlerType); |
| writeInt32(0); // Reserved[0] |
| writeInt32(0); // Reserved[1] |
| writeInt32(0); // Reserved[2] |
| writeInt8(0); // Name (empty) |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeKeys() { |
| size_t count = mMetaKeys->countEntries(); |
| |
| beginBox("keys"); |
| writeInt32(0); // Version, Flags |
| writeInt32(count); // Entry_count |
| for (size_t i = 0; i < count; i++) { |
| AMessage::Type type; |
| const char *key = mMetaKeys->getEntryNameAt(i, &type); |
| size_t n = strlen(key); |
| writeInt32(n + 8); |
| writeFourcc("mdta"); |
| write(key, n); // write without the \0 |
| } |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIlst() { |
| size_t count = mMetaKeys->countEntries(); |
| |
| beginBox("ilst"); |
| for (size_t i = 0; i < count; i++) { |
| beginBox(i + 1); // key id (1-based) |
| beginBox("data"); |
| AMessage::Type type; |
| const char *key = mMetaKeys->getEntryNameAt(i, &type); |
| switch (type) { |
| case AMessage::kTypeString: |
| { |
| AString val; |
| CHECK(mMetaKeys->findString(key, &val)); |
| writeInt32(1); // type = UTF8 |
| writeInt32(0); // default country/language |
| write(val.c_str(), strlen(val.c_str())); // write without \0 |
| break; |
| } |
| |
| case AMessage::kTypeFloat: |
| { |
| float val; |
| CHECK(mMetaKeys->findFloat(key, &val)); |
| writeInt32(23); // type = float32 |
| writeInt32(0); // default country/language |
| writeInt32(*reinterpret_cast<int32_t *>(&val)); |
| break; |
| } |
| |
| case AMessage::kTypeInt32: |
| { |
| int32_t val; |
| CHECK(mMetaKeys->findInt32(key, &val)); |
| writeInt32(67); // type = signed int32 |
| writeInt32(0); // default country/language |
| writeInt32(val); |
| break; |
| } |
| |
| default: |
| { |
| ALOGW("Unsupported key type, writing 0 instead"); |
| writeInt32(77); // type = unsigned int32 |
| writeInt32(0); // default country/language |
| writeInt32(0); |
| break; |
| } |
| } |
| endBox(); // data |
| endBox(); // key id |
| } |
| endBox(); // ilst |
| } |
| |
| void MPEG4Writer::writeMoovLevelMetaBox() { |
| size_t count = mMetaKeys->countEntries(); |
| if (count == 0) { |
| return; |
| } |
| |
| beginBox("meta"); |
| writeHdlr("mdta"); |
| writeKeys(); |
| writeIlst(); |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIlocBox() { |
| beginBox("iloc"); |
| // Use version 1 to allow construction method 1 that refers to |
| // data in idat box inside meta box. |
| writeInt32(0x01000000); // Version = 1, Flags = 0 |
| writeInt16(0x4400); // offset_size = length_size = 4 |
| // base_offset_size = index_size = 0 |
| |
| // 16-bit item_count |
| size_t itemCount = mItems.size(); |
| if (itemCount > 65535) { |
| ALOGW("Dropping excess items: itemCount %zu", itemCount); |
| itemCount = 65535; |
| } |
| writeInt16((uint16_t)itemCount); |
| |
| for (size_t i = 0; i < itemCount; i++) { |
| writeInt16(mItems[i].itemId); |
| bool isGrid = mItems[i].isGrid(); |
| |
| writeInt16(isGrid ? 1 : 0); // construction_method |
| writeInt16(0); // data_reference_index = 0 |
| writeInt16(1); // extent_count = 1 |
| |
| if (isGrid) { |
| // offset into the 'idat' box |
| writeInt32(mNumGrids++ * 8); |
| writeInt32(8); |
| } else { |
| writeInt32(mItems[i].offset); |
| writeInt32(mItems[i].size); |
| } |
| } |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeInfeBox( |
| uint16_t itemId, const char *itemType, uint32_t flags) { |
| beginBox("infe"); |
| writeInt32(0x02000000 | flags); // Version = 2, Flags = 0 |
| writeInt16(itemId); |
| writeInt16(0); //item_protection_index = 0 |
| writeFourcc(itemType); |
| writeCString(""); // item_name |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIinfBox() { |
| beginBox("iinf"); |
| writeInt32(0); // Version = 0, Flags = 0 |
| |
| // 16-bit item_count |
| size_t itemCount = mItems.size(); |
| if (itemCount > 65535) { |
| ALOGW("Dropping excess items: itemCount %zu", itemCount); |
| itemCount = 65535; |
| } |
| |
| writeInt16((uint16_t)itemCount); |
| for (size_t i = 0; i < itemCount; i++) { |
| writeInfeBox(mItems[i].itemId, mItems[i].itemType, |
| (mItems[i].isImage() && mItems[i].isHidden) ? 1 : 0); |
| } |
| |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIdatBox() { |
| beginBox("idat"); |
| |
| for (size_t i = 0; i < mItems.size(); i++) { |
| if (mItems[i].isGrid()) { |
| writeInt8(0); // version |
| // flags == 1 means 32-bit width,height |
| int8_t flags = (mItems[i].width > 65535 || mItems[i].height > 65535); |
| writeInt8(flags); |
| writeInt8(mItems[i].rows - 1); |
| writeInt8(mItems[i].cols - 1); |
| if (flags) { |
| writeInt32(mItems[i].width); |
| writeInt32(mItems[i].height); |
| } else { |
| writeInt16((uint16_t)mItems[i].width); |
| writeInt16((uint16_t)mItems[i].height); |
| } |
| } |
| } |
| |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIrefBox() { |
| beginBox("iref"); |
| writeInt32(0); // Version = 0, Flags = 0 |
| { |
| for (size_t i = 0; i < mItems.size(); i++) { |
| for (size_t r = 0; r < mItems[i].refsList.size(); r++) { |
| const ItemRefs &refs = mItems[i].refsList[r]; |
| beginBox(refs.key); |
| writeInt16(mItems[i].itemId); |
| size_t refCount = refs.value.size(); |
| if (refCount > 65535) { |
| ALOGW("too many entries in %s", refs.key); |
| refCount = 65535; |
| } |
| writeInt16((uint16_t)refCount); |
| for (size_t refIndex = 0; refIndex < refCount; refIndex++) { |
| writeInt16(refs.value[refIndex]); |
| } |
| endBox(); |
| } |
| } |
| } |
| endBox(); |
| } |
| |
| void MPEG4Writer::writePitmBox() { |
| beginBox("pitm"); |
| writeInt32(0); // Version = 0, Flags = 0 |
| writeInt16(mPrimaryItemId); |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIpcoBox() { |
| beginBox("ipco"); |
| size_t numProperties = mProperties.size(); |
| if (numProperties > 32767) { |
| ALOGW("Dropping excess properties: numProperties %zu", numProperties); |
| numProperties = 32767; |
| } |
| for (size_t propIndex = 0; propIndex < numProperties; propIndex++) { |
| switch (mProperties[propIndex].type) { |
| case FOURCC('h', 'v', 'c', 'C'): |
| { |
| beginBox("hvcC"); |
| sp<ABuffer> hvcc = mProperties[propIndex].hvcc; |
| // Patch avcc's lengthSize field to match the number |
| // of bytes we use to indicate the size of a nal unit. |
| uint8_t *ptr = (uint8_t *)hvcc->data(); |
| ptr[21] = (ptr[21] & 0xfc) | (useNalLengthFour() ? 3 : 1); |
| write(hvcc->data(), hvcc->size()); |
| endBox(); |
| break; |
| } |
| case FOURCC('i', 's', 'p', 'e'): |
| { |
| beginBox("ispe"); |
| writeInt32(0); // Version = 0, Flags = 0 |
| writeInt32(mProperties[propIndex].width); |
| writeInt32(mProperties[propIndex].height); |
| endBox(); |
| break; |
| } |
| case FOURCC('i', 'r', 'o', 't'): |
| { |
| beginBox("irot"); |
| writeInt8(mProperties[propIndex].rotation); |
| endBox(); |
| break; |
| } |
| default: |
| ALOGW("Skipping unrecognized property: type 0x%08x", |
| mProperties[propIndex].type); |
| } |
| } |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIpmaBox() { |
| beginBox("ipma"); |
| uint32_t flags = (mProperties.size() > 127) ? 1 : 0; |
| writeInt32(flags); // Version = 0 |
| |
| writeInt32(mAssociationEntryCount); |
| for (size_t itemIndex = 0; itemIndex < mItems.size(); itemIndex++) { |
| const Vector<uint16_t> &properties = mItems[itemIndex].properties; |
| if (properties.empty()) { |
| continue; |
| } |
| writeInt16(mItems[itemIndex].itemId); |
| |
| size_t entryCount = properties.size(); |
| if (entryCount > 255) { |
| ALOGW("Dropping excess associations: entryCount %zu", entryCount); |
| entryCount = 255; |
| } |
| writeInt8((uint8_t)entryCount); |
| for (size_t propIndex = 0; propIndex < entryCount; propIndex++) { |
| if (flags & 1) { |
| writeInt16((1 << 15) | properties[propIndex]); |
| } else { |
| writeInt8((1 << 7) | properties[propIndex]); |
| } |
| } |
| } |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeIprpBox() { |
| beginBox("iprp"); |
| writeIpcoBox(); |
| writeIpmaBox(); |
| endBox(); |
| } |
| |
| void MPEG4Writer::writeFileLevelMetaBox() { |
| // patch up the mPrimaryItemId and count items with prop associations |
| uint16_t firstVisibleItemId = 0; |
| uint16_t firstImageItemId = 0; |
| for (size_t index = 0; index < mItems.size(); index++) { |
| if (!mItems[index].isImage()) continue; |
| |
| if (mItems[index].isPrimary) { |
| mPrimaryItemId = mItems[index].itemId; |
| } |
| if (!firstImageItemId) { |
| firstImageItemId = mItems[index].itemId; |
| } |
| if (!firstVisibleItemId && !mItems[index].isHidden) { |
| firstVisibleItemId = mItems[index].itemId; |
| } |
| if (!mItems[index].properties.empty()) { |
| mAssociationEntryCount++; |
| } |
| } |
| |
| if (!firstImageItemId) { |
| ALOGE("no valid image was found"); |
| return; |
| } |
| |
| if (mPrimaryItemId == 0) { |
| if (firstVisibleItemId > 0) { |
| ALOGW("didn't find primary, using first visible image"); |
| mPrimaryItemId = firstVisibleItemId; |
| } else { |
| ALOGW("no primary and no visible item, using first image"); |
| mPrimaryItemId = firstImageItemId; |
| } |
| } |
| |
| for (List<Track *>::iterator it = mTracks.begin(); |
| it != mTracks.end(); ++it) { |
| if ((*it)->isHeic()) { |
| (*it)->flushItemRefs(); |
| } |
| } |
| |
| beginBox("meta"); |
| writeInt32(0); // Version = 0, Flags = 0 |
| writeHdlr("pict"); |
| writeIlocBox(); |
| writeIinfBox(); |
| writePitmBox(); |
| writeIprpBox(); |
| if (mNumGrids > 0) { |
| writeIdatBox(); |
| } |
| if (mHasRefs) { |
| writeIrefBox(); |
| } |
| endBox(); |
| } |
| |
| uint16_t MPEG4Writer::addProperty_l(const ItemProperty &prop) { |
| char typeStr[5]; |
| MakeFourCCString(prop.type, typeStr); |
| ALOGV("addProperty_l: %s", typeStr); |
| |
| mProperties.push_back(prop); |
| |
| // returning 1-based property index |
| return mProperties.size(); |
| } |
| |
| uint16_t MPEG4Writer::addItem_l(const ItemInfo &info) { |
| ALOGV("addItem_l: type %s, offset %u, size %u", |
| info.itemType, info.offset, info.size); |
| |
| size_t index = mItems.size(); |
| mItems.push_back(info); |
| |
| // make the item id start at kItemIdBase |
| mItems.editItemAt(index).itemId = index + kItemIdBase; |
| |
| #if (LOG_NDEBUG==0) |
| if (!info.properties.empty()) { |
| AString str; |
| for (size_t i = 0; i < info.properties.size(); i++) { |
| if (i > 0) { |
| str.append(", "); |
| } |
| str.append(info.properties[i]); |
| } |
| ALOGV("addItem_l: id %d, properties: %s", mItems[index].itemId, str.c_str()); |
| } |
| #endif // (LOG_NDEBUG==0) |
| |
| return mItems[index].itemId; |
| } |
| |
| void MPEG4Writer::addRefs_l(uint16_t itemId, const ItemRefs &refs) { |
| if (refs.value.empty()) { |
| return; |
| } |
| if (itemId < kItemIdBase) { |
| ALOGW("itemId shouldn't be smaller than kItemIdBase"); |
| return; |
| } |
| |
| size_t index = itemId - kItemIdBase; |
| mItems.editItemAt(index).refsList.push_back(refs); |
| mHasRefs = true; |
| } |
| |
| /* |
| * Geodata is stored according to ISO-6709 standard. |
| */ |
| void MPEG4Writer::writeGeoDataBox() { |
| beginBox("\xA9xyz"); |
| /* |
| * For historical reasons, any user data start |
| * with "\0xA9", must be followed by its assoicated |
| * language code. |
| * 0x0012: text string length |
| * 0x15c7: lang (locale) code: en |
| */ |
| writeInt32(0x001215c7); |
| writeLatitude(mLatitudex10000); |
| writeLongitude(mLongitudex10000); |
| writeInt8(0x2F); |
| endBox(); |
| } |
| |
| } // namespace android |