| /* |
| * 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 <sys/types.h> |
| |
| #include <stdint.h> |
| |
| #include <binder/Parcel.h> |
| #include <utils/RefBase.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/String8.h> |
| |
| 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) |
| kKeyPcmEncoding = 'PCMe', // int32_t (audio encoding enum) |
| kKeyFrameRate = 'frmR', // int32_t (video frame rate fps) |
| kKeyBitRate = 'brte', // int32_t (bps) |
| kKeyMaxBitRate = 'mxBr', // int32_t (bps) |
| kKeyStreamHeader = 'stHd', // raw data |
| 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) |
| kKeyVp9CodecPrivate = 'vp9p', // raw data (vp9 csd information) |
| 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 <media/mediarecorder.h> 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) |
| |
| // 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 |
| kKeyCASystemID = 'caid', // int32_t |
| kKeyCASessionID = 'seid', // 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 |
| |
| // MPEG user data offsets |
| kKeyMpegUserData = 'mpud', // size_t[] |
| |
| // Size of NALU length in mkv/mp4 |
| kKeyNalLengthSize = 'nals', // int32_t |
| |
| // HDR related |
| kKeyHdrStaticInfo = 'hdrS', // HDRStaticInfo |
| |
| // color aspects |
| kKeyColorRange = 'cRng', // int32_t, color range, value defined by ColorAspects.Range |
| kKeyColorPrimaries = 'cPrm', // int32_t, |
| // color Primaries, value defined by ColorAspects.Primaries |
| kKeyTransferFunction = 'tFun', // int32_t, |
| // transfer Function, value defined by ColorAspects.Transfer. |
| kKeyColorMatrix = 'cMtx', // int32_t, |
| // color Matrix, value defined by ColorAspects.MatrixCoeffs. |
| kKeyTemporalLayerId = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer) |
| kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded |
| }; |
| |
| enum { |
| kTypeESDS = 'esds', |
| kTypeAVCC = 'avcc', |
| kTypeHVCC = 'hvcc', |
| kTypeD263 = 'd263', |
| }; |
| |
| 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; |
| |
| String8 toString() const; |
| void dumpToLog() const; |
| |
| status_t writeToParcel(Parcel &parcel); |
| status_t updateFromParcel(const Parcel &parcel); |
| static sp<MetaData> createFromParcel(const Parcel &parcel); |
| |
| 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; |
| // may include hexdump of binary data if verbose=true |
| String8 asString(bool verbose) 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<uint32_t, typed_data> mItems; |
| |
| // MetaData &operator=(const MetaData &); |
| }; |
| |
| } // namespace android |
| |
| #endif // META_DATA_H_ |
