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1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef META_DATA_H_
18
19#define META_DATA_H_
20
21#include <sys/types.h>
22
23#include <stdint.h>
24
25#include <binder/Parcel.h>
26#include <utils/RefBase.h>
27#include <utils/KeyedVector.h>
28#include <utils/String8.h>
29
30namespace android {
31
32// The following keys map to int32_t data unless indicated otherwise.
33enum {
34 kKeyMIMEType = 'mime', // cstring
35 kKeyWidth = 'widt', // int32_t, image pixel
36 kKeyHeight = 'heig', // int32_t, image pixel
37 kKeyDisplayWidth = 'dWid', // int32_t, display/presentation
38 kKeyDisplayHeight = 'dHgt', // int32_t, display/presentation
39 kKeySARWidth = 'sarW', // int32_t, sampleAspectRatio width
40 kKeySARHeight = 'sarH', // int32_t, sampleAspectRatio height
41
42 // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
43 kKeyCropRect = 'crop',
44
45 kKeyRotation = 'rotA', // int32_t (angle in degrees)
46 kKeyIFramesInterval = 'ifiv', // int32_t
47 kKeyStride = 'strd', // int32_t
48 kKeySliceHeight = 'slht', // int32_t
49 kKeyChannelCount = '#chn', // int32_t
50 kKeyChannelMask = 'chnm', // int32_t
51 kKeySampleRate = 'srte', // int32_t (audio sampling rate Hz)
52 kKeyPcmEncoding = 'PCMe', // int32_t (audio encoding enum)
53 kKeyFrameRate = 'frmR', // int32_t (video frame rate fps)
54 kKeyBitRate = 'brte', // int32_t (bps)
55 kKeyMaxBitRate = 'mxBr', // int32_t (bps)
56 kKeyStreamHeader = 'stHd', // raw data
57 kKeyESDS = 'esds', // raw data
58 kKeyAACProfile = 'aacp', // int32_t
59 kKeyAVCC = 'avcc', // raw data
60 kKeyHVCC = 'hvcc', // raw data
61 kKeyD263 = 'd263', // raw data
62 kKeyVorbisInfo = 'vinf', // raw data
63 kKeyVorbisBooks = 'vboo', // raw data
64 kKeyOpusHeader = 'ohdr', // raw data
65 kKeyOpusCodecDelay = 'ocod', // uint64_t (codec delay in ns)
66 kKeyOpusSeekPreRoll = 'ospr', // uint64_t (seek preroll in ns)
67 kKeyVp9CodecPrivate = 'vp9p', // raw data (vp9 csd information)
68 kKeyWantsNALFragments = 'NALf',
69 kKeyIsSyncFrame = 'sync', // int32_t (bool)
70 kKeyIsCodecConfig = 'conf', // int32_t (bool)
71 kKeyTime = 'time', // int64_t (usecs)
72 kKeyDecodingTime = 'decT', // int64_t (decoding timestamp in usecs)
73 kKeyNTPTime = 'ntpT', // uint64_t (ntp-timestamp)
74 kKeyTargetTime = 'tarT', // int64_t (usecs)
75 kKeyDriftTime = 'dftT', // int64_t (usecs)
76 kKeyAnchorTime = 'ancT', // int64_t (usecs)
77 kKeyDuration = 'dura', // int64_t (usecs)
78 kKeyPixelFormat = 'pixf', // int32_t
79 kKeyColorFormat = 'colf', // int32_t
80 kKeyColorSpace = 'cols', // int32_t
81 kKeyPlatformPrivate = 'priv', // pointer
82 kKeyDecoderComponent = 'decC', // cstring
83 kKeyBufferID = 'bfID',
84 kKeyMaxInputSize = 'inpS',
85 kKeyMaxWidth = 'maxW',
86 kKeyMaxHeight = 'maxH',
87 kKeyThumbnailTime = 'thbT', // int64_t (usecs)
88 kKeyTrackID = 'trID',
89 kKeyIsDRM = 'idrm', // int32_t (bool)
90 kKeyEncoderDelay = 'encd', // int32_t (frames)
91 kKeyEncoderPadding = 'encp', // int32_t (frames)
92
93 kKeyAlbum = 'albu', // cstring
94 kKeyArtist = 'arti', // cstring
95 kKeyAlbumArtist = 'aart', // cstring
96 kKeyComposer = 'comp', // cstring
97 kKeyGenre = 'genr', // cstring
98 kKeyTitle = 'titl', // cstring
99 kKeyYear = 'year', // cstring
100 kKeyAlbumArt = 'albA', // compressed image data
101 kKeyAlbumArtMIME = 'alAM', // cstring
102 kKeyAuthor = 'auth', // cstring
103 kKeyCDTrackNumber = 'cdtr', // cstring
104 kKeyDiscNumber = 'dnum', // cstring
105 kKeyDate = 'date', // cstring
106 kKeyWriter = 'writ', // cstring
107 kKeyCompilation = 'cpil', // cstring
108 kKeyLocation = 'loc ', // cstring
109 kKeyTimeScale = 'tmsl', // int32_t
110 kKeyCaptureFramerate = 'capF', // float (capture fps)
111
112 // video profile and level
113 kKeyVideoProfile = 'vprf', // int32_t
114 kKeyVideoLevel = 'vlev', // int32_t
115
116 // Set this key to enable authoring files in 64-bit offset
117 kKey64BitFileOffset = 'fobt', // int32_t (bool)
118 kKey2ByteNalLength = '2NAL', // int32_t (bool)
119
120 // Identify the file output format for authoring
121 // Please see <media/mediarecorder.h> for the supported
122 // file output formats.
123 kKeyFileType = 'ftyp', // int32_t
124
125 // Track authoring progress status
126 // kKeyTrackTimeStatus is used to track progress in elapsed time
127 kKeyTrackTimeStatus = 'tktm', // int64_t
128
129 kKeyRealTimeRecording = 'rtrc', // bool (int32_t)
130 kKeyNumBuffers = 'nbbf', // int32_t
131
132 // Ogg files can be tagged to be automatically looping...
133 kKeyAutoLoop = 'autL', // bool (int32_t)
134
135 kKeyValidSamples = 'valD', // int32_t
136
137 kKeyIsUnreadable = 'unre', // bool (int32_t)
138
139 // An indication that a video buffer has been rendered.
140 kKeyRendered = 'rend', // bool (int32_t)
141
142 // The language code for this media
143 kKeyMediaLanguage = 'lang', // cstring
144
145 // To store the timed text format data
146 kKeyTextFormatData = 'text', // raw data
147
148 kKeyRequiresSecureBuffers = 'secu', // bool (int32_t)
149
150 kKeyIsADTS = 'adts', // bool (int32_t)
151 kKeyAACAOT = 'aaot', // int32_t
152
153 // If a MediaBuffer's data represents (at least partially) encrypted
154 // data, the following fields aid in decryption.
155 // The data can be thought of as pairs of plain and encrypted data
156 // fragments, i.e. plain and encrypted data alternate.
157 // The first fragment is by convention plain data (if that's not the
158 // case, simply specify plain fragment size of 0).
159 // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
160 // size_t values. The sum total of all size_t values of both arrays
161 // must equal the amount of data (i.e. MediaBuffer's range_length()).
162 // If both arrays are present, they must be of the same size.
163 // If only encrypted sizes are present it is assumed that all
164 // plain sizes are 0, i.e. all fragments are encrypted.
165 // To programmatically set these array, use the MetaData::setData API, i.e.
166 // const size_t encSizes[];
167 // meta->setData(
168 // kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
169 // A plain sizes array by itself makes no sense.
170 kKeyEncryptedSizes = 'encr', // size_t[]
171 kKeyPlainSizes = 'plai', // size_t[]
172 kKeyCryptoKey = 'cryK', // uint8_t[16]
173 kKeyCryptoIV = 'cryI', // uint8_t[16]
174 kKeyCryptoMode = 'cryM', // int32_t
175
176 kKeyCryptoDefaultIVSize = 'cryS', // int32_t
177
178 kKeyPssh = 'pssh', // raw data
179
180 // Please see MediaFormat.KEY_IS_AUTOSELECT.
181 kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
182 // Please see MediaFormat.KEY_IS_DEFAULT.
183 kKeyTrackIsDefault = 'dflt', // bool (int32_t)
184 // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
185 kKeyTrackIsForced = 'frcd', // bool (int32_t)
186
187 // H264 supplemental enhancement information offsets/sizes
188 kKeySEI = 'sei ', // raw data
189
190 // MPEG user data offsets
191 kKeyMpegUserData = 'mpud', // size_t[]
192
193 // Size of NALU length in mkv/mp4
194 kKeyNalLengthSize = 'nals', // int32_t
195
196 // HDR related
197 kKeyHdrStaticInfo = 'hdrS', // HDRStaticInfo
198
199 // color aspects
200 kKeyColorRange = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
201 kKeyColorPrimaries = 'cPrm', // int32_t,
202 // color Primaries, value defined by ColorAspects.Primaries
203 kKeyTransferFunction = 'tFun', // int32_t,
204 // transfer Function, value defined by ColorAspects.Transfer.
205 kKeyColorMatrix = 'cMtx', // int32_t,
206 // color Matrix, value defined by ColorAspects.MatrixCoeffs.
207 // audio profile
208 kKeyAudioProfile = 'aprf', // int32_t
209 kKeyExtraData = 'exda',
210 kKeyExtraDataSize = 'edsz',
211 kKeyCodecID = 'cdid',
212
213 //amffmpeg extended types
214 kKeyProgramName = 'proN', // cstring
215 kKeyProgramNum = 'PrgN', // int32_t
216 kKeyIsMVC = 'mvc ', // bool (int32_t)
217 kKey4kOSD = '4OSD', // bool (int32_t)
218 KKeyIsDV = 'isDV', // bool (int32_t)
219
220 kKeyBlockAlign = 'bagn',
221 kKeyAudioFlag ='aufg', // audio info reported from decoder to indicate special info
222 kKeyDtsDecoderVer ='dtsV',
223 kKeyDts958Fs ='dtsF',
224 kKeyDts958PktSize ='dtsP',
225 kKeyDts958PktType ='dtsT',
226 kKeyDtsPcmSampsInFrmMaxFs='dtsS',
227 kKeyTemporalLayerId = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
228 kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
229};
230
231enum {
232 kTypeESDS = 'esds',
233 kTypeAVCC = 'avcc',
234 kTypeHVCC = 'hvcc',
235 kTypeD263 = 'd263',
236};
237
238class MetaData : public RefBase {
239public:
240 MetaData();
241 MetaData(const MetaData &from);
242
243 enum Type {
244 TYPE_NONE = 'none',
245 TYPE_C_STRING = 'cstr',
246 TYPE_INT32 = 'in32',
247 TYPE_INT64 = 'in64',
248 TYPE_FLOAT = 'floa',
249 TYPE_POINTER = 'ptr ',
250 TYPE_RECT = 'rect',
251 };
252
253 void clear();
254 bool remove(uint32_t key);
255
256 bool setCString(uint32_t key, const char *value);
257 bool setInt32(uint32_t key, int32_t value);
258 bool setInt64(uint32_t key, int64_t value);
259 bool setFloat(uint32_t key, float value);
260 bool setPointer(uint32_t key, void *value);
261
262 bool setRect(
263 uint32_t key,
264 int32_t left, int32_t top,
265 int32_t right, int32_t bottom);
266
267 bool findCString(uint32_t key, const char **value);
268 bool findInt32(uint32_t key, int32_t *value);
269 bool findInt64(uint32_t key, int64_t *value);
270 bool findFloat(uint32_t key, float *value);
271 bool findPointer(uint32_t key, void **value);
272
273 bool findRect(
274 uint32_t key,
275 int32_t *left, int32_t *top,
276 int32_t *right, int32_t *bottom);
277
278 bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
279
280 bool findData(uint32_t key, uint32_t *type,
281 const void **data, size_t *size) const;
282
283 bool hasData(uint32_t key) const;
284
285 String8 toString() const;
286 void dumpToLog() const;
287
288 status_t writeToParcel(Parcel &parcel);
289 status_t updateFromParcel(const Parcel &parcel);
290 static sp<MetaData> createFromParcel(const Parcel &parcel);
291
292protected:
293 virtual ~MetaData();
294
295private:
296 struct typed_data {
297 typed_data();
298 ~typed_data();
299
300 typed_data(const MetaData::typed_data &);
301 typed_data &operator=(const MetaData::typed_data &);
302
303 void clear();
304 void setData(uint32_t type, const void *data, size_t size);
305 void getData(uint32_t *type, const void **data, size_t *size) const;
306 // may include hexdump of binary data if verbose=true
307 String8 asString(bool verbose) const;
308
309 private:
310 uint32_t mType;
311 size_t mSize;
312
313 union {
314 void *ext_data;
315 float reservoir;
316 } u;
317
318 bool usesReservoir() const {
319 return mSize <= sizeof(u.reservoir);
320 }
321
322 void *allocateStorage(size_t size);
323 void freeStorage();
324
325 void *storage() {
326 return usesReservoir() ? &u.reservoir : u.ext_data;
327 }
328
329 const void *storage() const {
330 return usesReservoir() ? &u.reservoir : u.ext_data;
331 }
332 };
333
334 struct Rect {
335 int32_t mLeft, mTop, mRight, mBottom;
336 };
337
338 KeyedVector<uint32_t, typed_data> mItems;
339
340 // MetaData &operator=(const MetaData &);
341};
342
343} // namespace android
344
345#endif // META_DATA_H_
346
generated by cgit at 2024-05-10 10:32:45 (GMT)