1
|
|
|
/** |
2
|
|
|
* @fileoverview Externs for wavefile 8.0 |
3
|
|
|
* |
4
|
|
|
* @see https://github.com/rochars/wavefile |
5
|
|
|
* @externs |
6
|
|
|
*/ |
7
|
|
|
|
8
|
|
|
// WaveFile class |
9
|
|
|
const WaveFile = {}; |
10
|
|
|
|
11
|
|
|
/** |
12
|
|
|
* The container identifier. |
13
|
|
|
* RIFF, RIFX and RF64 are supported. |
14
|
|
|
* @type {string} |
15
|
|
|
*/ |
16
|
|
|
WaveFile.container = ''; |
17
|
|
|
/** |
18
|
|
|
* @type {number} |
19
|
|
|
*/ |
20
|
|
|
WaveFile.chunkSize = 0; |
21
|
|
|
/** |
22
|
|
|
* The format. |
23
|
|
|
* Always WAVE. |
24
|
|
|
* @type {string} |
25
|
|
|
*/ |
26
|
|
|
WaveFile.format = ''; |
27
|
|
|
/** |
28
|
|
|
* The data of the fmt chunk. |
29
|
|
|
* @type {!Object<string, *>} |
30
|
|
|
*/ |
31
|
|
|
WaveFile.fmt = { |
32
|
|
|
/** @type {string} */ |
33
|
|
|
chunkId: '', |
34
|
|
|
/** @type {number} */ |
35
|
|
|
chunkSize: 0, |
36
|
|
|
/** @type {number} */ |
37
|
|
|
audioFormat: 0, |
38
|
|
|
/** @type {number} */ |
39
|
|
|
numChannels: 0, |
40
|
|
|
/** @type {number} */ |
41
|
|
|
sampleRate: 0, |
42
|
|
|
/** @type {number} */ |
43
|
|
|
byteRate: 0, |
44
|
|
|
/** @type {number} */ |
45
|
|
|
blockAlign: 0, |
46
|
|
|
/** @type {number} */ |
47
|
|
|
bitsPerSample: 0, |
48
|
|
|
/** @type {number} */ |
49
|
|
|
cbSize: 0, |
50
|
|
|
/** @type {number} */ |
51
|
|
|
validBitsPerSample: 0, |
52
|
|
|
/** @type {number} */ |
53
|
|
|
dwChannelMask: 0, |
54
|
|
|
/** |
55
|
|
|
* 4 32-bit values representing a 128-bit ID |
56
|
|
|
* @type {!Array<number>} |
57
|
|
|
*/ |
58
|
|
|
subformat: [] |
59
|
|
|
}; |
60
|
|
|
/** |
61
|
|
|
* The data of the fact chunk. |
62
|
|
|
* @type {!Object<string, *>} |
63
|
|
|
*/ |
64
|
|
|
WaveFile.fact = { |
65
|
|
|
/** @type {string} */ |
66
|
|
|
chunkId: '', |
67
|
|
|
/** @type {number} */ |
68
|
|
|
chunkSize: 0, |
69
|
|
|
/** @type {number} */ |
70
|
|
|
dwSampleLength: 0 |
71
|
|
|
}; |
72
|
|
|
/** |
73
|
|
|
* The data of the cue chunk. |
74
|
|
|
* @type {!Object<string, *>} |
75
|
|
|
*/ |
76
|
|
|
WaveFile.cue = { |
77
|
|
|
/** @type {string} */ |
78
|
|
|
chunkId: '', |
79
|
|
|
/** @type {number} */ |
80
|
|
|
chunkSize: 0, |
81
|
|
|
/** @type {number} */ |
82
|
|
|
dwCuePoints: 0, |
83
|
|
|
/** @type {!Array<!Object>} */ |
84
|
|
|
points: [], |
85
|
|
|
}; |
86
|
|
|
/** |
87
|
|
|
* The data of the smpl chunk. |
88
|
|
|
* @type {!Object<string, *>} |
89
|
|
|
*/ |
90
|
|
|
WaveFile.smpl = { |
91
|
|
|
/** @type {string} */ |
92
|
|
|
chunkId: '', |
93
|
|
|
/** @type {number} */ |
94
|
|
|
chunkSize: 0, |
95
|
|
|
/** @type {number} */ |
96
|
|
|
dwManufacturer: 0, |
97
|
|
|
/** @type {number} */ |
98
|
|
|
dwProduct: 0, |
99
|
|
|
/** @type {number} */ |
100
|
|
|
dwSamplePeriod: 0, |
101
|
|
|
/** @type {number} */ |
102
|
|
|
dwMIDIUnityNote: 0, |
103
|
|
|
/** @type {number} */ |
104
|
|
|
dwMIDIPitchFraction: 0, |
105
|
|
|
/** @type {number} */ |
106
|
|
|
dwSMPTEFormat: 0, |
107
|
|
|
/** @type {number} */ |
108
|
|
|
dwSMPTEOffset: 0, |
109
|
|
|
/** @type {number} */ |
110
|
|
|
dwNumSampleLoops: 0, |
111
|
|
|
/** @type {number} */ |
112
|
|
|
dwSamplerData: 0, |
113
|
|
|
/** @type {!Array<!Object>} */ |
114
|
|
|
loops: [], |
115
|
|
|
}; |
116
|
|
|
/** |
117
|
|
|
* The data of the bext chunk. |
118
|
|
|
* @type {!Object<string, *>} |
119
|
|
|
*/ |
120
|
|
|
WaveFile.bext = { |
121
|
|
|
/** @type {string} */ |
122
|
|
|
chunkId: '', |
123
|
|
|
/** @type {number} */ |
124
|
|
|
chunkSize: 0, |
125
|
|
|
/** @type {string} */ |
126
|
|
|
description: '', |
127
|
|
|
/** @type {string} */ |
128
|
|
|
originator: '', |
129
|
|
|
/** @type {string} */ |
130
|
|
|
originatorReference: '', |
131
|
|
|
/** @type {string} */ |
132
|
|
|
originationDate: '', |
133
|
|
|
/** @type {string} */ |
134
|
|
|
originationTime: '', |
135
|
|
|
/** |
136
|
|
|
* 2 32-bit values, timeReference high and low |
137
|
|
|
* @type {!Array<number>} |
138
|
|
|
*/ |
139
|
|
|
timeReference: [0, 0], |
140
|
|
|
/** @type {number} */ |
141
|
|
|
version: 0, |
142
|
|
|
/** @type {string} */ |
143
|
|
|
UMID: '', |
144
|
|
|
/** @type {number} */ |
145
|
|
|
loudnessValue: 0, |
146
|
|
|
/** @type {number} */ |
147
|
|
|
loudnessRange: 0, |
148
|
|
|
/** @type {number} */ |
149
|
|
|
maxTruePeakLevel: 0, |
150
|
|
|
/** @type {number} */ |
151
|
|
|
maxMomentaryLoudness: 0, |
152
|
|
|
/** @type {number} */ |
153
|
|
|
maxShortTermLoudness: 0, |
154
|
|
|
/** @type {string} */ |
155
|
|
|
reserved: '', |
156
|
|
|
/** @type {string} */ |
157
|
|
|
codingHistory: '' |
158
|
|
|
}; |
159
|
|
|
/** |
160
|
|
|
* The data of the ds64 chunk. |
161
|
|
|
* Used only with RF64 files. |
162
|
|
|
* @type {!Object<string, *>} |
163
|
|
|
*/ |
164
|
|
|
WaveFile.ds64 = { |
165
|
|
|
/** @type {string} */ |
166
|
|
|
chunkId: '', |
167
|
|
|
/** @type {number} */ |
168
|
|
|
chunkSize: 0, |
169
|
|
|
/** @type {number} */ |
170
|
|
|
riffSizeHigh: 0, |
171
|
|
|
/** @type {number} */ |
172
|
|
|
riffSizeLow: 0, |
173
|
|
|
/** @type {number} */ |
174
|
|
|
dataSizeHigh: 0, |
175
|
|
|
/** @type {number} */ |
176
|
|
|
dataSizeLow: 0, |
177
|
|
|
/** @type {number} */ |
178
|
|
|
originationTime: 0, |
179
|
|
|
/** @type {number} */ |
180
|
|
|
sampleCountHigh: 0, |
181
|
|
|
/** @type {number} */ |
182
|
|
|
sampleCountLow: 0, |
183
|
|
|
}; |
184
|
|
|
/** |
185
|
|
|
* The data of the data chunk. |
186
|
|
|
* @type {!Object<string, *>} |
187
|
|
|
*/ |
188
|
|
|
WaveFile.data = { |
189
|
|
|
/** @type {string} */ |
190
|
|
|
chunkId: '', |
191
|
|
|
/** @type {number} */ |
192
|
|
|
chunkSize: 0, |
193
|
|
|
/** @type {!Array<number>} */ |
194
|
|
|
samples: [] |
195
|
|
|
}; |
196
|
|
|
/** |
197
|
|
|
* The data of the LIST chunks. |
198
|
|
|
* Each item in this list look like this: |
199
|
|
|
* { |
200
|
|
|
* chunkId: '', |
201
|
|
|
* chunkSize: 0, |
202
|
|
|
* format: '', |
203
|
|
|
* subChunks: [] |
204
|
|
|
* } |
205
|
|
|
* @type {!Array<!Object>} |
206
|
|
|
*/ |
207
|
|
|
WaveFile.LIST = []; |
208
|
|
|
/** |
209
|
|
|
* The data of the junk chunk. |
210
|
|
|
* @type {!Object<string, *>} |
211
|
|
|
*/ |
212
|
|
|
WaveFile.junk = { |
213
|
|
|
/** @type {string} */ |
214
|
|
|
chunkId: '', |
215
|
|
|
/** @type {number} */ |
216
|
|
|
chunkSize: 0, |
217
|
|
|
/** @type {!Array<number>} */ |
218
|
|
|
chunkData: [] |
219
|
|
|
}; |
220
|
|
|
/** |
221
|
|
|
* The bit depth code according to the samples. |
222
|
|
|
* @type {string} |
223
|
|
|
*/ |
224
|
|
|
WaveFile.bitDepth = ''; |
225
|
|
|
|
226
|
|
|
/** |
227
|
|
|
* Set up the WaveFile object based on the arguments passed. |
228
|
|
|
* @param {number} numChannels The number of channels |
229
|
|
|
* (Integer numbers: 1 for mono, 2 stereo and so on). |
230
|
|
|
* @param {number} sampleRate The sample rate. |
231
|
|
|
* Integer numbers like 8000, 44100, 48000, 96000, 192000. |
232
|
|
|
* @param {string} bitDepth The audio bit depth code. |
233
|
|
|
* One of 4, 8, 8a, 8m, 16, 24, 32, 32f, 64 |
234
|
|
|
* or any value between 8 and 32 (like 12). |
235
|
|
|
* @param {!Array<number>} samples Array of samples to be written. |
236
|
|
|
* The samples must be in the correct range according to the |
237
|
|
|
* bit depth. |
238
|
|
|
* @param {?Object} options Optional. Used to force the container |
239
|
|
|
* as RIFX with {container: RIFX} |
240
|
|
|
* @throws {Error} If any argument does not meet the criteria. |
241
|
|
|
*/ |
242
|
|
|
WaveFile.fromScratch = function( |
243
|
|
|
numChannels, sampleRate, bitDepth, samples, options={}) {} |
244
|
|
|
|
245
|
|
|
/** |
246
|
|
|
* Set up the WaveFile object from a byte buffer. |
247
|
|
|
* @param {!Uint8Array} bytes The buffer. |
248
|
|
|
* @param {boolean=} samples True if the samples should be loaded. |
249
|
|
|
* @throws {Error} If container is not RIFF, RIFX or RF64. |
250
|
|
|
* @throws {Error} If no fmt chunk is found. |
251
|
|
|
* @throws {Error} If no data chunk is found. |
252
|
|
|
*/ |
253
|
|
|
WaveFile.fromBuffer = function(bytes, samples=true) {} |
254
|
|
|
|
255
|
|
|
/** |
256
|
|
|
* Return a byte buffer representig the WaveFile object as a .wav file. |
257
|
|
|
* The return value of this method can be written straight to disk. |
258
|
|
|
* @return {!Uint8Array} A .wav file. |
259
|
|
|
* @throws {Error} If any property of the object appears invalid. |
260
|
|
|
*/ |
261
|
|
|
WaveFile.toBuffer = function() {} |
262
|
|
|
|
263
|
|
|
/** |
264
|
|
|
* Use a .wav file encoded as a base64 string to load the WaveFile object. |
265
|
|
|
* @param {string} base64String A .wav file as a base64 string. |
266
|
|
|
* @throws {Error} If any property of the object appears invalid. |
267
|
|
|
*/ |
268
|
|
|
WaveFile.fromBase64 = function(base64String) {} |
|
|
|
|
269
|
|
|
|
270
|
|
|
/** |
271
|
|
|
* Return a base64 string representig the WaveFile object as a .wav file. |
272
|
|
|
* @return {string} A .wav file as a base64 string. |
273
|
|
|
* @throws {Error} If any property of the object appears invalid. |
274
|
|
|
*/ |
275
|
|
|
WaveFile.toBase64 = function() {} |
276
|
|
|
|
277
|
|
|
/** |
278
|
|
|
* Return a DataURI string representig the WaveFile object as a .wav file. |
279
|
|
|
* The return of this method can be used to load the audio in browsers. |
280
|
|
|
* @return {string} A .wav file as a DataURI. |
281
|
|
|
* @throws {Error} If any property of the object appears invalid. |
282
|
|
|
*/ |
283
|
|
|
WaveFile.toDataURI = function() {} |
284
|
|
|
|
285
|
|
|
/** |
286
|
|
|
* Use a .wav file encoded as a DataURI to load the WaveFile object. |
287
|
|
|
* @param {string} dataURI A .wav file as DataURI. |
288
|
|
|
* @throws {Error} If any property of the object appears invalid. |
289
|
|
|
*/ |
290
|
|
|
WaveFile.fromDataURI = function(dataURI) {} |
|
|
|
|
291
|
|
|
|
292
|
|
|
/** |
293
|
|
|
* Force a file as RIFF. |
294
|
|
|
*/ |
295
|
|
|
WaveFile.toRIFF = function() {} |
296
|
|
|
|
297
|
|
|
/** |
298
|
|
|
* Force a file as RIFX. |
299
|
|
|
*/ |
300
|
|
|
WaveFile.toRIFX = function() {} |
301
|
|
|
|
302
|
|
|
/** |
303
|
|
|
* Change the bit depth of the samples. |
304
|
|
|
* @param {string} bitDepth The new bit depth of the samples. |
305
|
|
|
* One of 8 ... 32 (integers), 32f or 64 (floats) |
306
|
|
|
* @param {boolean} changeResolution A boolean indicating if the |
307
|
|
|
* resolution of samples should be actually changed or not. |
308
|
|
|
* @throws {Error} If the bit depth is not valid. |
309
|
|
|
*/ |
310
|
|
|
WaveFile.toBitDepth = function(bitDepth, changeResolution=true) {} |
311
|
|
|
|
312
|
|
|
/** |
313
|
|
|
* Encode a 16-bit wave file as 4-bit IMA ADPCM. |
314
|
|
|
* @throws {Error} If sample rate is not 8000. |
315
|
|
|
* @throws {Error} If number of channels is not 1. |
316
|
|
|
*/ |
317
|
|
|
WaveFile.toIMAADPCM = function() {} |
318
|
|
|
|
319
|
|
|
/** |
320
|
|
|
* Decode a 4-bit IMA ADPCM wave file as a 16-bit wave file. |
321
|
|
|
* @param {string} bitDepth The new bit depth of the samples. |
322
|
|
|
* One of 8 ... 32 (integers), 32f or 64 (floats). |
323
|
|
|
* Optional. Default is 16. |
324
|
|
|
*/ |
325
|
|
|
WaveFile.fromIMAADPCM = function(bitDepth='16') {} |
326
|
|
|
|
327
|
|
|
/** |
328
|
|
|
* Encode 16-bit wave file as 8-bit A-Law. |
329
|
|
|
*/ |
330
|
|
|
WaveFile.toALaw = function() {} |
331
|
|
|
|
332
|
|
|
/** |
333
|
|
|
* Decode a 8-bit A-Law wave file into a 16-bit wave file. |
334
|
|
|
* @param {string} bitDepth The new bit depth of the samples. |
335
|
|
|
* One of 8 ... 32 (integers), 32f or 64 (floats). |
336
|
|
|
* Optional. Default is 16. |
337
|
|
|
*/ |
338
|
|
|
WaveFile.fromALaw = function(bitDepth='16') {} |
339
|
|
|
|
340
|
|
|
/** |
341
|
|
|
* Encode 16-bit wave file as 8-bit mu-Law. |
342
|
|
|
*/ |
343
|
|
|
WaveFile.toMuLaw = function() {} |
344
|
|
|
|
345
|
|
|
/** |
346
|
|
|
* Decode a 8-bit mu-Law wave file into a 16-bit wave file. |
347
|
|
|
* @param {string} bitDepth The new bit depth of the samples. |
348
|
|
|
* One of 8 ... 32 (integers), 32f or 64 (floats). |
349
|
|
|
* Optional. Default is 16. |
350
|
|
|
*/ |
351
|
|
|
WaveFile.fromMuLaw = function(bitDepth='16') {} |
352
|
|
|
|
353
|
|
|
/** |
354
|
|
|
* Write a RIFF tag in the INFO chunk. If the tag do not exist, |
355
|
|
|
* then it is created. It if exists, it is overwritten. |
356
|
|
|
* @param {string} tag The tag name. |
357
|
|
|
* @param {string} value The tag value. |
358
|
|
|
* @throws {Error} If the tag name is not valid. |
359
|
|
|
*/ |
360
|
|
|
WaveFile.setTag = function(tag, value) {} |
|
|
|
|
361
|
|
|
|
362
|
|
|
/** |
363
|
|
|
* Return the value of a RIFF tag in the INFO chunk. |
364
|
|
|
* @param {string} tag The tag name. |
365
|
|
|
* @return {?string} The value if the tag is found, null otherwise. |
366
|
|
|
*/ |
367
|
|
|
WaveFile.getTag = function(tag) {} |
|
|
|
|
368
|
|
|
|
369
|
|
|
/** |
370
|
|
|
* Remove a RIFF tag in the INFO chunk. |
371
|
|
|
* @param {string} tag The tag name. |
372
|
|
|
* @return {boolean} True if a tag was deleted. |
373
|
|
|
*/ |
374
|
|
|
WaveFile.deleteTag = function(tag) {} |
|
|
|
|
375
|
|
|
|
376
|
|
|
/** |
377
|
|
|
* Create a cue point in the wave file. |
378
|
|
|
* @param {number} position The cue point position in milliseconds. |
379
|
|
|
* @param {string} labl The LIST adtl labl text of the marker. Optional. |
380
|
|
|
*/ |
381
|
|
|
WaveFile.setCuePoint = function(position, labl='') {} |
382
|
|
|
|
383
|
|
|
/** |
384
|
|
|
* Remove a cue point from a wave file. |
385
|
|
|
* @param {number} index the index of the point. First is 1, |
386
|
|
|
* second is 2, and so on. |
387
|
|
|
*/ |
388
|
|
|
WaveFile.deleteCuePoint = function(index) {} |
|
|
|
|
389
|
|
|
|
390
|
|
|
/** |
391
|
|
|
* Update the label of a cue point. |
392
|
|
|
* @param {number} pointIndex The ID of the cue point. |
393
|
|
|
* @param {string} label The new text for the label. |
394
|
|
|
*/ |
395
|
|
|
WaveFile.updateLabel = function(pointIndex, label) {} |
|
|
|
|
396
|
|
|
|
This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.