1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
|
#region License
/*
MIT License
Copyright © 2006 The Mono.Xna Team
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#endregion License
using System;
using System.IO;
namespace Microsoft.Xna.Framework.Audio
{
public class WaveBank : IDisposable
{
internal SoundEffectInstance[] sounds;
internal string BankName;
struct Segment
{
public int Offset;
public int Length;
}
struct WaveBankEntry
{
public int Format;
public Segment PlayRegion;
public Segment LoopRegion;
public int FlagsAndDuration;
}
struct WaveBankHeader
{
public int Version;
public Segment[] Segments;
}
struct WaveBankData
{
public int Flags; // Bank flags
public int EntryCount; // Number of entries in the bank
public string BankName; // Bank friendly name
public int EntryMetaDataElementSize; // Size of each entry meta-data element, in bytes
public int EntryNameElementSize; // Size of each entry name element, in bytes
public int Alignment; // Entry alignment, in bytes
public int CompactFormat; // Format data for compact bank
public int BuildTime; // Build timestamp
}
private const int Flag_EntryNames = 0x00010000; // Bank includes entry names
private const int Flag_Compact = 0x00020000; // Bank uses compact format
private const int Flag_SyncDisabled = 0x00040000; // Bank is disabled for audition sync
private const int Flag_SeekTables = 0x00080000; // Bank includes seek tables.
private const int Flag_Mask = 0x000F0000;
private const int MiniFormatTag_PCM = 0x0;
private const int MiniFormatTag_XMA = 0x1;
private const int MiniFormatTag_ADPCM = 0x2;
private const int MiniForamtTag_WMA = 0x3;
public WaveBank(AudioEngine audioEngine, string nonStreamingWaveBankFilename)
{
//XWB PARSING
//Adapted from MonoXNA
//Originally adaped from Luigi Auriemma's unxwb
WaveBankHeader wavebankheader;
WaveBankData wavebankdata;
WaveBankEntry wavebankentry;
wavebankdata.EntryNameElementSize = 0;
wavebankdata.CompactFormat = 0;
wavebankdata.Alignment = 0;
wavebankentry.Format = 0;
wavebankentry.PlayRegion.Length = 0;
wavebankentry.PlayRegion.Offset = 0;
int wavebank_offset = 0;
// Check for windows-style directory separator character
nonStreamingWaveBankFilename = nonStreamingWaveBankFilename.Replace('\\',Path.DirectorySeparatorChar);
BinaryReader reader = new BinaryReader(new FileStream(nonStreamingWaveBankFilename, FileMode.Open));
reader.ReadBytes(4);
wavebankheader.Version = reader.ReadInt32();
int last_segment = 4;
//if (wavebankheader.Version == 1) goto WAVEBANKDATA;
if (wavebankheader.Version <= 3) last_segment = 3;
if (wavebankheader.Version >= 42) reader.ReadInt32(); // skip HeaderVersion
wavebankheader.Segments = new Segment[5];
for (int i = 0; i <= last_segment; i++)
{
wavebankheader.Segments[i].Offset = reader.ReadInt32();
wavebankheader.Segments[i].Length = reader.ReadInt32();
}
reader.BaseStream.Seek(wavebankheader.Segments[0].Offset, SeekOrigin.Begin);
//WAVEBANKDATA:
wavebankdata.Flags = reader.ReadInt32();
wavebankdata.EntryCount = reader.ReadInt32();
if ((wavebankheader.Version == 2) || (wavebankheader.Version == 3))
{
wavebankdata.BankName = System.Text.Encoding.UTF8.GetString(reader.ReadBytes(16)).Replace("\0", "");
}
else
{
wavebankdata.BankName = System.Text.Encoding.UTF8.GetString(reader.ReadBytes(64)).Replace("\0", "");
}
BankName = wavebankdata.BankName;
if (wavebankheader.Version == 1)
{
//wavebank_offset = (int)ftell(fd) - file_offset;
wavebankdata.EntryMetaDataElementSize = 20;
}
else
{
wavebankdata.EntryMetaDataElementSize = reader.ReadInt32();
wavebankdata.EntryNameElementSize = reader.ReadInt32();
wavebankdata.Alignment = reader.ReadInt32();
wavebank_offset = wavebankheader.Segments[1].Offset; //METADATASEGMENT
}
int compact_format;
if ((wavebankdata.Flags & Flag_Compact) != 0)
{
compact_format = reader.ReadInt32();
}
int playregion_offset = wavebankheader.Segments[last_segment].Offset;
if (playregion_offset == 0)
{
playregion_offset =
wavebank_offset +
(wavebankdata.EntryCount * wavebankdata.EntryMetaDataElementSize);
}
int segidx_entry_name = 2;
if (wavebankheader.Version >= 42) segidx_entry_name = 3;
int waveentry_offset = wavebankheader.Segments[segidx_entry_name].Offset;
if ((wavebankheader.Segments[segidx_entry_name].Offset != 0) &&
(wavebankheader.Segments[segidx_entry_name].Length != 0))
{
if (wavebankdata.EntryNameElementSize == -1) wavebankdata.EntryNameElementSize = 0;
byte[] entry_name = new byte[wavebankdata.EntryNameElementSize + 1];
entry_name[wavebankdata.EntryNameElementSize] = 0;
}
sounds = new SoundEffectInstance[wavebankdata.EntryCount];
for (int current_entry = 0; current_entry < wavebankdata.EntryCount; current_entry++)
{
reader.BaseStream.Seek(wavebank_offset, SeekOrigin.Begin);
//SHOWFILEOFF;
//memset(&wavebankentry, 0, sizeof(wavebankentry));
if ((wavebankdata.Flags & Flag_Compact) != 0)
{
int len = reader.ReadInt32();
wavebankentry.Format = wavebankdata.CompactFormat;
wavebankentry.PlayRegion.Offset = (len & ((1 << 21) - 1)) * wavebankdata.Alignment;
wavebankentry.PlayRegion.Length = (len >> 21) & ((1 << 11) - 1);
// workaround because I don't know how to handke the deviation length
reader.BaseStream.Seek(wavebank_offset + wavebankdata.EntryMetaDataElementSize, SeekOrigin.Begin);
//MYFSEEK(wavebank_offset + wavebankdata.dwEntryMetaDataElementSize); // seek to the next
if (current_entry == (wavebankdata.EntryCount - 1))
{ // the last track
len = wavebankheader.Segments[last_segment].Length;
}
else
{
len = ((reader.ReadInt32() & ((1 << 21) - 1)) * wavebankdata.Alignment);
}
wavebankentry.PlayRegion.Length =
len - // next offset
wavebankentry.PlayRegion.Offset; // current offset
goto wavebank_handle;
}
if (wavebankheader.Version == 1)
{
wavebankentry.Format = reader.ReadInt32();
wavebankentry.PlayRegion.Offset = reader.ReadInt32();
wavebankentry.PlayRegion.Length = reader.ReadInt32();
wavebankentry.LoopRegion.Offset = reader.ReadInt32();
wavebankentry.LoopRegion.Length = reader.ReadInt32();
}
else
{
if (wavebankdata.EntryMetaDataElementSize >= 4) wavebankentry.FlagsAndDuration = reader.ReadInt32();
if (wavebankdata.EntryMetaDataElementSize >= 8) wavebankentry.Format = reader.ReadInt32();
if (wavebankdata.EntryMetaDataElementSize >= 12) wavebankentry.PlayRegion.Offset = reader.ReadInt32();
if (wavebankdata.EntryMetaDataElementSize >= 16) wavebankentry.PlayRegion.Length = reader.ReadInt32();
if (wavebankdata.EntryMetaDataElementSize >= 20) wavebankentry.LoopRegion.Offset = reader.ReadInt32();
if (wavebankdata.EntryMetaDataElementSize >= 24) wavebankentry.LoopRegion.Length = reader.ReadInt32();
}
if (wavebankdata.EntryMetaDataElementSize < 24)
{ // work-around
if (wavebankentry.PlayRegion.Length != 0)
{
wavebankentry.PlayRegion.Length = wavebankheader.Segments[last_segment].Length;
}
}// else if(wavebankdata.EntryMetaDataElementSize > sizeof(WaveBankEntry)) { // skip unused fields
// MYFSEEK(wavebank_offset + wavebankdata.EntryMetaDataElementSize);
//}
wavebank_handle:
wavebank_offset += wavebankdata.EntryMetaDataElementSize;
wavebankentry.PlayRegion.Offset += playregion_offset;
// Parse WAVEBANKMINIWAVEFORMAT
int codec;
int chans;
int rate;
int align;
int bits;
if (wavebankheader.Version == 1)
{ // I'm not 100% sure if the following is correct
// version 1:
// 1 00000000 000101011000100010 0 001 0
// | | | | | |
// | | | | | wFormatTag
// | | | | nChannels
// | | | ???
// | | nSamplesPerSec
// | wBlockAlign
// wBitsPerSample
codec = (wavebankentry.Format) & ((1 << 1) - 1);
chans = (wavebankentry.Format >> (1)) & ((1 << 3) - 1);
rate = (wavebankentry.Format >> (1 + 3 + 1)) & ((1 << 18) - 1);
align = (wavebankentry.Format >> (1 + 3 + 1 + 18)) & ((1 << 8) - 1);
bits = (wavebankentry.Format >> (1 + 3 + 1 + 18 + 8)) & ((1 << 1) - 1);
/*} else if(wavebankheader.dwVersion == 23) { // I'm not 100% sure if the following is correct
// version 23:
// 1000000000 001011101110000000 001 1
// | | | | |
// | | | | ???
// | | | nChannels?
// | | nSamplesPerSec
// | ???
// !!!UNKNOWN FORMAT!!!
//codec = -1;
//chans = (wavebankentry.Format >> 1) & ((1 << 3) - 1);
//rate = (wavebankentry.Format >> 4) & ((1 << 18) - 1);
//bits = (wavebankentry.Format >> 31) & ((1 << 1) - 1);
codec = (wavebankentry.Format ) & ((1 << 1) - 1);
chans = (wavebankentry.Format >> (1) ) & ((1 << 3) - 1);
rate = (wavebankentry.Format >> (1 + 3) ) & ((1 << 18) - 1);
align = (wavebankentry.Format >> (1 + 3 + 18) ) & ((1 << 9) - 1);
bits = (wavebankentry.Format >> (1 + 3 + 18 + 9)) & ((1 << 1) - 1); */
}
else
{
// 0 00000000 000111110100000000 010 01
// | | | | |
// | | | | wFormatTag
// | | | nChannels
// | | nSamplesPerSec
// | wBlockAlign
// wBitsPerSample
codec = (wavebankentry.Format) & ((1 << 2) - 1);
chans = (wavebankentry.Format >> (2)) & ((1 << 3) - 1);
rate = (wavebankentry.Format >> (2 + 3)) & ((1 << 18) - 1);
align = (wavebankentry.Format >> (2 + 3 + 18)) & ((1 << 8) - 1);
bits = (wavebankentry.Format >> (2 + 3 + 18 + 8)) & ((1 << 1) - 1);
}
reader.BaseStream.Seek(wavebankentry.PlayRegion.Offset, SeekOrigin.Begin);
byte[] audiodata = reader.ReadBytes(wavebankentry.PlayRegion.Length);
if (codec == MiniFormatTag_PCM) {
//write PCM data into a wav
MemoryStream mStream = new MemoryStream(44+audiodata.Length);
BinaryWriter writer = new BinaryWriter(mStream);
writer.Write("RIFF".ToCharArray());
writer.Write((int)(36+audiodata.Length));
writer.Write("WAVE".ToCharArray());
writer.Write("fmt ".ToCharArray());
writer.Write((int)16); //header size
writer.Write((short)1); //format (PCM)
writer.Write((short)chans);
writer.Write((int)rate); //sample rate
writer.Write((int)rate*align); //byte rate
writer.Write((short)align);
if (bits == 1)
{
writer.Write((short)16);
}
else
{
writer.Write((short)8); //not sure if this is right
}
writer.Write("data".ToCharArray());
writer.Write((int)audiodata.Length);
writer.Write(audiodata);
writer.Close();
mStream.Close();
sounds[current_entry] = new SoundEffect(mStream.ToArray(), rate, AudioChannels.Mono).CreateInstance();
} else if (codec == MiniForamtTag_WMA) { //WMA or xWMA (or XMA2)
byte[] wmaSig = {0x30, 0x26, 0xb2, 0x75, 0x8e, 0x66, 0xcf, 0x11, 0xa6, 0xd9, 0x0, 0xaa, 0x0, 0x62, 0xce, 0x6c};
bool isWma = true;
for (int i=0; i<wmaSig.Length; i++) {
if (wmaSig[i] != audiodata[i]) {
isWma = false;
break;
}
}
//Let's support m4a data as well for convenience
byte[][] m4aSigs = new byte[][] {
new byte[] {0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70, 0x4D, 0x34, 0x41, 0x20, 0x00, 0x00, 0x02, 0x00},
new byte[] {0x00, 0x00, 0x00, 0x20, 0x66, 0x74, 0x79, 0x70, 0x4D, 0x34, 0x41, 0x20, 0x00, 0x00, 0x00, 0x00}
};
bool isM4a = false;
for (int i=0; i<m4aSigs.Length; i++) {
byte[] sig = m4aSigs[i];
bool matches = true;
for (int j=0; j<sig.Length; j++) {
if (sig[j] != audiodata[j]) {
matches = false;
break;
}
}
if (matches) {
isM4a = true;
break;
}
}
if (isWma || isM4a) {
//WMA data can sometimes be played directly
//hack - NSSound can't play non-wav from data, we have to give a filename
string filename = Path.GetTempFileName();
if (isWma) {
filename = filename.Replace(".tmp", ".wma");
} else if (isM4a) {
filename = filename.Replace(".tmp", ".m4a");
}
FileStream audioFile = new FileStream(filename, FileMode.Create, FileAccess.ReadWrite);
audioFile.Write(audiodata, 0, audiodata.Length);
audioFile.Close();
sounds[current_entry] = new SoundEffect(filename).CreateInstance();
} else {
//An xWMA or XMA2 file. Can't be played atm :(
throw new NotImplementedException();
}
} else {
throw new NotImplementedException();
}
}
audioEngine.Wavebanks[BankName] = this;
}
#region IDisposable implementation
public void Dispose ()
{
throw new NotImplementedException ();
}
#endregion
}
}
|
