/* * 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. */ #ifndef META_DATA_H_ #define META_DATA_H_ #include #include #include #include #include namespace android { // The following keys map to int32_t data unless indicated otherwise. enum { kKeyMIMEType = 'mime', // cstring kKeyWidth = 'widt', // int32_t, image pixel kKeyHeight = 'heig', // int32_t, image pixel kKeyDisplayWidth = 'dWid', // int32_t, display/presentation kKeyDisplayHeight = 'dHgt', // int32_t, display/presentation kKeySARWidth = 'sarW', // int32_t, sampleAspectRatio width kKeySARHeight = 'sarH', // int32_t, sampleAspectRatio height // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1) kKeyCropRect = 'crop', kKeyRotation = 'rotA', // int32_t (angle in degrees) kKeyIFramesInterval = 'ifiv', // int32_t kKeyStride = 'strd', // int32_t kKeySliceHeight = 'slht', // int32_t kKeyChannelCount = '#chn', // int32_t kKeyChannelMask = 'chnm', // int32_t kKeySampleRate = 'srte', // int32_t (audio sampling rate Hz) kKeyFrameRate = 'frmR', // int32_t (video frame rate fps) kKeyBitRate = 'brte', // int32_t (bps) kKeyCodecId = 'cdid', // int32_t kKeyBitsPerSample = 'sbit', // int32_t (DUPE of kKeySampleBits) kKeyCodedSampleBits = 'cosb', // int32_t kKeySampleFormat = 'sfmt', // int32_t kKeyESDS = 'esds', // raw data kKeyAACProfile = 'aacp', // int32_t kKeyAVCC = 'avcc', // raw data kKeyHVCC = 'hvcc', // raw data kKeyD263 = 'd263', // raw data kKeyVorbisInfo = 'vinf', // raw data kKeyVorbisBooks = 'vboo', // raw data kKeyOpusHeader = 'ohdr', // raw data kKeyOpusCodecDelay = 'ocod', // uint64_t (codec delay in ns) kKeyOpusSeekPreRoll = 'ospr', // uint64_t (seek preroll in ns) kKeyWantsNALFragments = 'NALf', kKeyIsSyncFrame = 'sync', // int32_t (bool) kKeyIsCodecConfig = 'conf', // int32_t (bool) kKeyTime = 'time', // int64_t (usecs) kKeyDecodingTime = 'decT', // int64_t (decoding timestamp in usecs) kKeyNTPTime = 'ntpT', // uint64_t (ntp-timestamp) kKeyTargetTime = 'tarT', // int64_t (usecs) kKeyDriftTime = 'dftT', // int64_t (usecs) kKeyAnchorTime = 'ancT', // int64_t (usecs) kKeyDuration = 'dura', // int64_t (usecs) kKeyPixelFormat = 'pixf', // int32_t kKeyColorFormat = 'colf', // int32_t kKeyColorSpace = 'cols', // int32_t kKeyPlatformPrivate = 'priv', // pointer kKeyDecoderComponent = 'decC', // cstring kKeyBufferID = 'bfID', kKeyMaxInputSize = 'inpS', kKeyMaxWidth = 'maxW', kKeyMaxHeight = 'maxH', kKeyThumbnailTime = 'thbT', // int64_t (usecs) kKeyTrackID = 'trID', kKeyIsDRM = 'idrm', // int32_t (bool) kKeyEncoderDelay = 'encd', // int32_t (frames) kKeyEncoderPadding = 'encp', // int32_t (frames) kKeyAlbum = 'albu', // cstring kKeyArtist = 'arti', // cstring kKeyAlbumArtist = 'aart', // cstring kKeyComposer = 'comp', // cstring kKeyGenre = 'genr', // cstring kKeyTitle = 'titl', // cstring kKeyYear = 'year', // cstring kKeyAlbumArt = 'albA', // compressed image data kKeyAlbumArtMIME = 'alAM', // cstring kKeyAuthor = 'auth', // cstring kKeyCDTrackNumber = 'cdtr', // cstring kKeyDiscNumber = 'dnum', // cstring kKeyDate = 'date', // cstring kKeyWriter = 'writ', // cstring kKeyCompilation = 'cpil', // cstring kKeyLocation = 'loc ', // cstring kKeyTimeScale = 'tmsl', // int32_t kKeyCaptureFramerate = 'capF', // float (capture fps) // video profile and level kKeyVideoProfile = 'vprf', // int32_t kKeyVideoLevel = 'vlev', // int32_t // Set this key to enable authoring files in 64-bit offset kKey64BitFileOffset = 'fobt', // int32_t (bool) kKey2ByteNalLength = '2NAL', // int32_t (bool) // Identify the file output format for authoring // Please see for the supported // file output formats. kKeyFileType = 'ftyp', // int32_t // Track authoring progress status // kKeyTrackTimeStatus is used to track progress in elapsed time kKeyTrackTimeStatus = 'tktm', // int64_t kKeyRealTimeRecording = 'rtrc', // bool (int32_t) kKeyNumBuffers = 'nbbf', // int32_t // Ogg files can be tagged to be automatically looping... kKeyAutoLoop = 'autL', // bool (int32_t) kKeyValidSamples = 'valD', // int32_t kKeyIsUnreadable = 'unre', // bool (int32_t) kKeyRawCodecSpecificData = 'rcsd', // raw data - added to support mmParser kKeyDivXVersion = 'DivX', // int32_t kKeyDivXDrm = 'QDrm', // void * kKeyWMAEncodeOpt = 'eopt', // int32_t kKeyWMABlockAlign = 'blka', // int32_t kKeyWMAVersion = 'wmav', // int32_t kKeyWMAAdvEncOpt1 = 'ade1', // int16_t kKeyWMAAdvEncOpt2 = 'ade2', // int32_t kKeyWMAFormatTag = 'fmtt', // int64_t kKeyWMABitspersample = 'bsps', // int64_t kKeyWMAVirPktSize = 'vpks', // int64_t kKeyWMVProfile = 'wmvp', // int32_t kKeyWMVVersion = 'wmvv', // int32_t kKeyRVVersion = '#rvv', // int32_t kKeyBlockAlign = 'ablk', // int32_t , should be different from kKeyWMABlockAlign // An indication that a video buffer has been rendered. kKeyRendered = 'rend', // bool (int32_t) // The language code for this media kKeyMediaLanguage = 'lang', // cstring // To store the timed text format data kKeyTextFormatData = 'text', // raw data kKeyRequiresSecureBuffers = 'secu', // bool (int32_t) kKeyIsADTS = 'adts', // bool (int32_t) kKeyAACAOT = 'aaot', // int32_t // If a MediaBuffer's data represents (at least partially) encrypted // data, the following fields aid in decryption. // The data can be thought of as pairs of plain and encrypted data // fragments, i.e. plain and encrypted data alternate. // The first fragment is by convention plain data (if that's not the // case, simply specify plain fragment size of 0). // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of // size_t values. The sum total of all size_t values of both arrays // must equal the amount of data (i.e. MediaBuffer's range_length()). // If both arrays are present, they must be of the same size. // If only encrypted sizes are present it is assumed that all // plain sizes are 0, i.e. all fragments are encrypted. // To programmatically set these array, use the MetaData::setData API, i.e. // const size_t encSizes[]; // meta->setData( // kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes)); // A plain sizes array by itself makes no sense. kKeyEncryptedSizes = 'encr', // size_t[] kKeyPlainSizes = 'plai', // size_t[] kKeyCryptoKey = 'cryK', // uint8_t[16] kKeyCryptoIV = 'cryI', // uint8_t[16] kKeyCryptoMode = 'cryM', // int32_t kKeyCryptoDefaultIVSize = 'cryS', // int32_t kKeyPssh = 'pssh', // raw data // Please see MediaFormat.KEY_IS_AUTOSELECT. kKeyTrackIsAutoselect = 'auto', // bool (int32_t) // Please see MediaFormat.KEY_IS_DEFAULT. kKeyTrackIsDefault = 'dflt', // bool (int32_t) // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well. kKeyTrackIsForced = 'frcd', // bool (int32_t) // H264 supplemental enhancement information offsets/sizes kKeySEI = 'sei ', // raw data kKeyPCMFormat = 'pfmt', kKeyArbitraryMode = 'ArbM', // Indicate if it is OK to hold on to the MediaBuffer and not // release it immediately kKeyCanDeferRelease = 'drel', // bool (int32_t) }; enum { kTypeESDS = 'esds', kTypeAVCC = 'avcc', kTypeHVCC = 'hvcc', kTypeD263 = 'd263', }; enum { kTypeDivXVer_3_11, kTypeDivXVer_4, kTypeDivXVer_5, kTypeDivXVer_6, }; enum { kTypeWMA, kTypeWMAPro, kTypeWMALossLess, }; enum { kTypeWMVVer_7, // WMV1 kTypeWMVVer_8, // WMV2 kTypeWMVVer_9, // WMV3 }; // http://en.wikipedia.org/wiki/RealVideo enum { kTypeRVVer_G2, // rv20: RealVideo G2 kTypeRVVer_8, // rv30: RealVideo 8 kTypeRVVer_9, // rv40: RealVideo 9 }; class MetaData : public RefBase { public: MetaData(); MetaData(const MetaData &from); enum Type { TYPE_NONE = 'none', TYPE_C_STRING = 'cstr', TYPE_INT32 = 'in32', TYPE_INT64 = 'in64', TYPE_FLOAT = 'floa', TYPE_POINTER = 'ptr ', TYPE_RECT = 'rect', }; void clear(); bool remove(uint32_t key); bool setCString(uint32_t key, const char *value); bool setInt32(uint32_t key, int32_t value); bool setInt64(uint32_t key, int64_t value); bool setFloat(uint32_t key, float value); bool setPointer(uint32_t key, void *value); bool setRect( uint32_t key, int32_t left, int32_t top, int32_t right, int32_t bottom); bool findCString(uint32_t key, const char **value); bool findInt32(uint32_t key, int32_t *value); bool findInt64(uint32_t key, int64_t *value); bool findFloat(uint32_t key, float *value); bool findPointer(uint32_t key, void **value); bool findRect( uint32_t key, int32_t *left, int32_t *top, int32_t *right, int32_t *bottom); bool setData(uint32_t key, uint32_t type, const void *data, size_t size); bool findData(uint32_t key, uint32_t *type, const void **data, size_t *size) const; bool hasData(uint32_t key) const; void dumpToLog() const; protected: virtual ~MetaData(); private: struct typed_data { typed_data(); ~typed_data(); typed_data(const MetaData::typed_data &); typed_data &operator=(const MetaData::typed_data &); void clear(); void setData(uint32_t type, const void *data, size_t size); void getData(uint32_t *type, const void **data, size_t *size) const; String8 asString() const; private: uint32_t mType; size_t mSize; union { void *ext_data; float reservoir; } u; bool usesReservoir() const { return mSize <= sizeof(u.reservoir); } void *allocateStorage(size_t size); void freeStorage(); void *storage() { return usesReservoir() ? &u.reservoir : u.ext_data; } const void *storage() const { return usesReservoir() ? &u.reservoir : u.ext_data; } }; struct Rect { int32_t mLeft, mTop, mRight, mBottom; }; KeyedVector mItems; // MetaData &operator=(const MetaData &); }; } // namespace android #endif // META_DATA_H_