1
2 /* -----------------------------------------------------------------------------------------------------------
3 Software License for The Fraunhofer FDK AAC Codec Library for Android
4
5 � Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur F�rderung der angewandten Forschung e.V.
6 All rights reserved.
7
8 1. INTRODUCTION
9 The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
10 the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
11 This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
12
13 AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
14 audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
15 independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
16 of the MPEG specifications.
17
18 Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
19 may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
20 individually for the purpose of encoding or decoding bit streams in products that are compliant with
21 the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
22 these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
23 software may already be covered under those patent licenses when it is used for those licensed purposes only.
24
25 Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
26 are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
27 applications information and documentation.
28
29 2. COPYRIGHT LICENSE
30
31 Redistribution and use in source and binary forms, with or without modification, are permitted without
32 payment of copyright license fees provided that you satisfy the following conditions:
33
34 You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
35 your modifications thereto in source code form.
36
37 You must retain the complete text of this software license in the documentation and/or other materials
38 provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
39 You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
40 modifications thereto to recipients of copies in binary form.
41
42 The name of Fraunhofer may not be used to endorse or promote products derived from this library without
43 prior written permission.
44
45 You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
46 software or your modifications thereto.
47
48 Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
49 and the date of any change. For modified versions of the FDK AAC Codec, the term
50 "Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
51 "Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
52
53 3. NO PATENT LICENSE
54
55 NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
56 ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
57 respect to this software.
58
59 You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
60 by appropriate patent licenses.
61
62 4. DISCLAIMER
63
64 This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
65 "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
66 of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
67 CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
68 including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
69 or business interruption, however caused and on any theory of liability, whether in contract, strict
70 liability, or tort (including negligence), arising in any way out of the use of this software, even if
71 advised of the possibility of such damage.
72
73 5. CONTACT INFORMATION
74
75 Fraunhofer Institute for Integrated Circuits IIS
76 Attention: Audio and Multimedia Departments - FDK AAC LL
77 Am Wolfsmantel 33
78 91058 Erlangen, Germany
79
80 www.iis.fraunhofer.de/amm
81 amm-info@iis.fraunhofer.de
82 ----------------------------------------------------------------------------------------------------------- */
83
84 /***************************** MPEG Audio Encoder ***************************
85
86 Initial author: N. Rettelbach
87 contents/description: Parametric Stereo bitstream encoder
88
89 ******************************************************************************/
90
91 #include "ps_main.h"
92
93
94 #include "ps_const.h"
95 #include "ps_bitenc.h"
96
97 static
FDKsbrEnc_WriteBits_ps(HANDLE_FDK_BITSTREAM hBitStream,UINT value,const UINT numberOfBits)98 inline UCHAR FDKsbrEnc_WriteBits_ps(HANDLE_FDK_BITSTREAM hBitStream, UINT value,
99 const UINT numberOfBits)
100 {
101 /* hBitStream == NULL happens here intentionally */
102 if(hBitStream!=NULL){
103 FDKwriteBits(hBitStream, value, numberOfBits);
104 }
105 return numberOfBits;
106 }
107
108 #define SI_SBR_EXTENSION_SIZE_BITS 4
109 #define SI_SBR_EXTENSION_ESC_COUNT_BITS 8
110 #define SI_SBR_EXTENSION_ID_BITS 2
111 #define EXTENSION_ID_PS_CODING 2
112 #define PS_EXT_ID_V0 0
113
114 static const INT iidDeltaCoarse_Offset = 14;
115 static const INT iidDeltaCoarse_MaxVal = 28;
116 static const INT iidDeltaFine_Offset = 30;
117 static const INT iidDeltaFine_MaxVal = 60;
118
119 /* PS Stereo Huffmantable: iidDeltaFreqCoarse */
120 static const UINT iidDeltaFreqCoarse_Length[] =
121 {
122 17, 17, 17, 17, 16, 15, 13, 10, 9, 7,
123 6, 5, 4, 3, 1, 3, 4, 5, 6, 6,
124 8, 11, 13, 14, 14, 15, 17, 18, 18
125 };
126 static const UINT iidDeltaFreqCoarse_Code[] =
127 {
128 0x0001fffb, 0x0001fffc, 0x0001fffd, 0x0001fffa, 0x0000fffc, 0x00007ffc, 0x00001ffd, 0x000003fe, 0x000001fe, 0x0000007e,
129 0x0000003c, 0x0000001d, 0x0000000d, 0x00000005, 0000000000, 0x00000004, 0x0000000c, 0x0000001c, 0x0000003d, 0x0000003e,
130 0x000000fe, 0x000007fe, 0x00001ffc, 0x00003ffc, 0x00003ffd, 0x00007ffd, 0x0001fffe, 0x0003fffe, 0x0003ffff
131 };
132
133 /* PS Stereo Huffmantable: iidDeltaFreqFine */
134 static const UINT iidDeltaFreqFine_Length[] =
135 {
136 18, 18, 18, 18, 18, 18, 18, 18, 18, 17,
137 18, 17, 17, 16, 16, 15, 14, 14, 13, 12,
138 12, 11, 10, 10, 8, 7, 6, 5, 4, 3,
139 1, 3, 4, 5, 6, 7, 8, 9, 10, 11,
140 11, 12, 13, 14, 14, 15, 16, 16, 17, 17,
141 18, 17, 18, 18, 18, 18, 18, 18, 18, 18,
142 18
143 };
144 static const UINT iidDeltaFreqFine_Code[] =
145 {
146 0x0001feb4, 0x0001feb5, 0x0001fd76, 0x0001fd77, 0x0001fd74, 0x0001fd75, 0x0001fe8a, 0x0001fe8b, 0x0001fe88, 0x0000fe80,
147 0x0001feb6, 0x0000fe82, 0x0000feb8, 0x00007f42, 0x00007fae, 0x00003faf, 0x00001fd1, 0x00001fe9, 0x00000fe9, 0x000007ea,
148 0x000007fb, 0x000003fb, 0x000001fb, 0x000001ff, 0x0000007c, 0x0000003c, 0x0000001c, 0x0000000c, 0000000000, 0x00000001,
149 0x00000001, 0x00000002, 0x00000001, 0x0000000d, 0x0000001d, 0x0000003d, 0x0000007d, 0x000000fc, 0x000001fc, 0x000003fc,
150 0x000003f4, 0x000007eb, 0x00000fea, 0x00001fea, 0x00001fd6, 0x00003fd0, 0x00007faf, 0x00007f43, 0x0000feb9, 0x0000fe83,
151 0x0001feb7, 0x0000fe81, 0x0001fe89, 0x0001fe8e, 0x0001fe8f, 0x0001fe8c, 0x0001fe8d, 0x0001feb2, 0x0001feb3, 0x0001feb0,
152 0x0001feb1
153 };
154
155 /* PS Stereo Huffmantable: iidDeltaTimeCoarse */
156 static const UINT iidDeltaTimeCoarse_Length[] =
157 {
158 19, 19, 19, 20, 20, 20, 17, 15, 12, 10,
159 8, 6, 4, 2, 1, 3, 5, 7, 9, 11,
160 13, 14, 17, 19, 20, 20, 20, 20, 20
161 };
162 static const UINT iidDeltaTimeCoarse_Code[] =
163 {
164 0x0007fff9, 0x0007fffa, 0x0007fffb, 0x000ffff8, 0x000ffff9, 0x000ffffa, 0x0001fffd, 0x00007ffe, 0x00000ffe, 0x000003fe,
165 0x000000fe, 0x0000003e, 0x0000000e, 0x00000002, 0000000000, 0x00000006, 0x0000001e, 0x0000007e, 0x000001fe, 0x000007fe,
166 0x00001ffe, 0x00003ffe, 0x0001fffc, 0x0007fff8, 0x000ffffb, 0x000ffffc, 0x000ffffd, 0x000ffffe, 0x000fffff
167 };
168
169 /* PS Stereo Huffmantable: iidDeltaTimeFine */
170 static const UINT iidDeltaTimeFine_Length[] =
171 {
172 16, 16, 16, 16, 16, 16, 16, 16, 16, 15,
173 15, 15, 15, 15, 15, 14, 14, 13, 13, 13,
174 12, 12, 11, 10, 9, 9, 7, 6, 5, 3,
175 1, 2, 5, 6, 7, 8, 9, 10, 11, 11,
176 12, 12, 13, 13, 14, 14, 15, 15, 15, 15,
177 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
178 16
179 };
180 static const UINT iidDeltaTimeFine_Code[] =
181 {
182 0x00004ed4, 0x00004ed5, 0x00004ece, 0x00004ecf, 0x00004ecc, 0x00004ed6, 0x00004ed8, 0x00004f46, 0x00004f60, 0x00002718,
183 0x00002719, 0x00002764, 0x00002765, 0x0000276d, 0x000027b1, 0x000013b7, 0x000013d6, 0x000009c7, 0x000009e9, 0x000009ed,
184 0x000004ee, 0x000004f7, 0x00000278, 0x00000139, 0x0000009a, 0x0000009f, 0x00000020, 0x00000011, 0x0000000a, 0x00000003,
185 0x00000001, 0000000000, 0x0000000b, 0x00000012, 0x00000021, 0x0000004c, 0x0000009b, 0x0000013a, 0x00000279, 0x00000270,
186 0x000004ef, 0x000004e2, 0x000009ea, 0x000009d8, 0x000013d7, 0x000013d0, 0x000027b2, 0x000027a2, 0x0000271a, 0x0000271b,
187 0x00004f66, 0x00004f67, 0x00004f61, 0x00004f47, 0x00004ed9, 0x00004ed7, 0x00004ecd, 0x00004ed2, 0x00004ed3, 0x00004ed0,
188 0x00004ed1
189 };
190
191 static const INT iccDelta_Offset = 7;
192 static const INT iccDelta_MaxVal = 14;
193 /* PS Stereo Huffmantable: iccDeltaFreq */
194 static const UINT iccDeltaFreq_Length[] =
195 {
196 14, 14, 12, 10, 7, 5, 3, 1, 2, 4,
197 6, 8, 9, 11, 13
198 };
199 static const UINT iccDeltaFreq_Code[] =
200 {
201 0x00003fff, 0x00003ffe, 0x00000ffe, 0x000003fe, 0x0000007e, 0x0000001e, 0x00000006, 0000000000, 0x00000002, 0x0000000e,
202 0x0000003e, 0x000000fe, 0x000001fe, 0x000007fe, 0x00001ffe
203 };
204
205 /* PS Stereo Huffmantable: iccDeltaTime */
206 static const UINT iccDeltaTime_Length[] =
207 {
208 14, 13, 11, 9, 7, 5, 3, 1, 2, 4,
209 6, 8, 10, 12, 14
210 };
211 static const UINT iccDeltaTime_Code[] =
212 {
213 0x00003ffe, 0x00001ffe, 0x000007fe, 0x000001fe, 0x0000007e, 0x0000001e, 0x00000006, 0000000000, 0x00000002, 0x0000000e,
214 0x0000003e, 0x000000fe, 0x000003fe, 0x00000ffe, 0x00003fff
215 };
216
217
218
219 static const INT ipdDelta_Offset = 0;
220 static const INT ipdDelta_MaxVal = 7;
221 /* PS Stereo Huffmantable: ipdDeltaFreq */
222 static const UINT ipdDeltaFreq_Length[] =
223 {
224 1, 3, 4, 4, 4, 4, 4, 4
225 };
226 static const UINT ipdDeltaFreq_Code[] =
227 {
228 0x00000001, 0000000000, 0x00000006, 0x00000004, 0x00000002, 0x00000003, 0x00000005, 0x00000007
229 };
230
231 /* PS Stereo Huffmantable: ipdDeltaTime */
232 static const UINT ipdDeltaTime_Length[] =
233 {
234 1, 3, 4, 5, 5, 4, 4, 3
235 };
236 static const UINT ipdDeltaTime_Code[] =
237 {
238 0x00000001, 0x00000002, 0x00000002, 0x00000003, 0x00000002, 0000000000, 0x00000003, 0x00000003
239 };
240
241
242 static const INT opdDelta_Offset = 0;
243 static const INT opdDelta_MaxVal = 7;
244 /* PS Stereo Huffmantable: opdDeltaFreq */
245 static const UINT opdDeltaFreq_Length[] =
246 {
247 1, 3, 4, 4, 5, 5, 4, 3
248 };
249 static const UINT opdDeltaFreq_Code[] =
250 {
251 0x00000001, 0x00000001, 0x00000006, 0x00000004, 0x0000000f, 0x0000000e, 0x00000005, 0000000000,
252 };
253
254 /* PS Stereo Huffmantable: opdDeltaTime */
255 static const UINT opdDeltaTime_Length[] =
256 {
257 1, 3, 4, 5, 5, 4, 4, 3
258 };
259 static const UINT opdDeltaTime_Code[] =
260 {
261 0x00000001, 0x00000002, 0x00000001, 0x00000007, 0x00000006, 0000000000, 0x00000002, 0x00000003
262 };
263
264 static const INT psBands[] =
265 {
266 PS_BANDS_COARSE,
267 PS_BANDS_MID
268 };
269
getNoBands(PS_RESOLUTION mode)270 static INT getNoBands(PS_RESOLUTION mode)
271 {
272 if(mode>=6)
273 return 0;
274
275 if(mode>=3)
276 mode = (PS_RESOLUTION)(mode-3);
277
278 return psBands[mode];
279 }
280
getIIDRes(INT iidMode)281 static INT getIIDRes(INT iidMode)
282 {
283 if(iidMode<3)
284 return PS_IID_RES_COARSE;
285 else
286 return PS_IID_RES_FINE;
287 }
288
289 static INT
encodeDeltaFreq(HANDLE_FDK_BITSTREAM hBitBuf,const INT * val,const INT nBands,const UINT * codeTable,const UINT * lengthTable,const INT tableOffset,const INT maxVal,INT * error)290 encodeDeltaFreq(HANDLE_FDK_BITSTREAM hBitBuf,
291 const INT *val,
292 const INT nBands,
293 const UINT *codeTable,
294 const UINT *lengthTable,
295 const INT tableOffset,
296 const INT maxVal,
297 INT *error)
298 {
299 INT bitCnt = 0;
300 INT lastVal = 0;
301 INT band;
302
303 for(band=0;band<nBands;band++) {
304 INT delta = (val[band] - lastVal) + tableOffset;
305 lastVal = val[band];
306 if( (delta>maxVal) || (delta<0) ) {
307 *error = 1;
308 delta = delta>0?maxVal:0;
309 }
310 bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, codeTable[delta], lengthTable[delta]);
311 }
312
313 return bitCnt;
314 }
315
316 static INT
encodeDeltaTime(HANDLE_FDK_BITSTREAM hBitBuf,const INT * val,const INT * valLast,const INT nBands,const UINT * codeTable,const UINT * lengthTable,const INT tableOffset,const INT maxVal,INT * error)317 encodeDeltaTime(HANDLE_FDK_BITSTREAM hBitBuf,
318 const INT *val,
319 const INT *valLast,
320 const INT nBands,
321 const UINT *codeTable,
322 const UINT *lengthTable,
323 const INT tableOffset,
324 const INT maxVal,
325 INT *error)
326 {
327 INT bitCnt = 0;
328 INT band;
329
330 for(band=0;band<nBands;band++) {
331 INT delta = (val[band] - valLast[band]) + tableOffset;
332 if( (delta>maxVal) || (delta<0) ) {
333 *error = 1;
334 delta = delta>0?maxVal:0;
335 }
336 bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, codeTable[delta], lengthTable[delta]);
337 }
338
339 return bitCnt;
340 }
341
FDKsbrEnc_EncodeIid(HANDLE_FDK_BITSTREAM hBitBuf,const INT * iidVal,const INT * iidValLast,const INT nBands,const PS_IID_RESOLUTION res,const PS_DELTA mode,INT * error)342 INT FDKsbrEnc_EncodeIid(HANDLE_FDK_BITSTREAM hBitBuf,
343 const INT *iidVal,
344 const INT *iidValLast,
345 const INT nBands,
346 const PS_IID_RESOLUTION res,
347 const PS_DELTA mode,
348 INT *error)
349 {
350 const UINT *codeTable;
351 const UINT *lengthTable;
352 INT bitCnt = 0;
353
354 bitCnt = 0;
355
356 switch(mode) {
357 case PS_DELTA_FREQ:
358 switch(res) {
359 case PS_IID_RES_COARSE:
360 codeTable = iidDeltaFreqCoarse_Code;
361 lengthTable = iidDeltaFreqCoarse_Length;
362 bitCnt += encodeDeltaFreq(hBitBuf, iidVal, nBands, codeTable,
363 lengthTable, iidDeltaCoarse_Offset,
364 iidDeltaCoarse_MaxVal, error);
365 break;
366 case PS_IID_RES_FINE:
367 codeTable = iidDeltaFreqFine_Code;
368 lengthTable = iidDeltaFreqFine_Length;
369 bitCnt += encodeDeltaFreq(hBitBuf, iidVal, nBands, codeTable,
370 lengthTable, iidDeltaFine_Offset,
371 iidDeltaFine_MaxVal, error);
372 break;
373 default:
374 *error = 1;
375 }
376 break;
377
378 case PS_DELTA_TIME:
379 switch(res) {
380 case PS_IID_RES_COARSE:
381 codeTable = iidDeltaTimeCoarse_Code;
382 lengthTable = iidDeltaTimeCoarse_Length;
383 bitCnt += encodeDeltaTime(hBitBuf, iidVal, iidValLast, nBands, codeTable,
384 lengthTable, iidDeltaCoarse_Offset,
385 iidDeltaCoarse_MaxVal, error);
386 break;
387 case PS_IID_RES_FINE:
388 codeTable = iidDeltaTimeFine_Code;
389 lengthTable = iidDeltaTimeFine_Length;
390 bitCnt += encodeDeltaTime(hBitBuf, iidVal, iidValLast, nBands, codeTable,
391 lengthTable, iidDeltaFine_Offset,
392 iidDeltaFine_MaxVal, error);
393 break;
394 default:
395 *error = 1;
396 }
397 break;
398
399 default:
400 *error = 1;
401 }
402
403 return bitCnt;
404 }
405
406
FDKsbrEnc_EncodeIcc(HANDLE_FDK_BITSTREAM hBitBuf,const INT * iccVal,const INT * iccValLast,const INT nBands,const PS_DELTA mode,INT * error)407 INT FDKsbrEnc_EncodeIcc(HANDLE_FDK_BITSTREAM hBitBuf,
408 const INT *iccVal,
409 const INT *iccValLast,
410 const INT nBands,
411 const PS_DELTA mode,
412 INT *error)
413 {
414 const UINT *codeTable;
415 const UINT *lengthTable;
416 INT bitCnt = 0;
417
418 switch(mode) {
419 case PS_DELTA_FREQ:
420 codeTable = iccDeltaFreq_Code;
421 lengthTable = iccDeltaFreq_Length;
422 bitCnt += encodeDeltaFreq(hBitBuf, iccVal, nBands, codeTable,
423 lengthTable, iccDelta_Offset, iccDelta_MaxVal, error);
424 break;
425
426 case PS_DELTA_TIME:
427 codeTable = iccDeltaTime_Code;
428 lengthTable = iccDeltaTime_Length;
429
430 bitCnt += encodeDeltaTime(hBitBuf, iccVal, iccValLast, nBands, codeTable,
431 lengthTable, iccDelta_Offset, iccDelta_MaxVal, error);
432 break;
433
434 default:
435 *error = 1;
436 }
437
438 return bitCnt;
439 }
440
FDKsbrEnc_EncodeIpd(HANDLE_FDK_BITSTREAM hBitBuf,const INT * ipdVal,const INT * ipdValLast,const INT nBands,const PS_DELTA mode,INT * error)441 INT FDKsbrEnc_EncodeIpd(HANDLE_FDK_BITSTREAM hBitBuf,
442 const INT *ipdVal,
443 const INT *ipdValLast,
444 const INT nBands,
445 const PS_DELTA mode,
446 INT *error)
447 {
448 const UINT *codeTable;
449 const UINT *lengthTable;
450 INT bitCnt = 0;
451
452 switch(mode) {
453 case PS_DELTA_FREQ:
454 codeTable = ipdDeltaFreq_Code;
455 lengthTable = ipdDeltaFreq_Length;
456 bitCnt += encodeDeltaFreq(hBitBuf, ipdVal, nBands, codeTable,
457 lengthTable, ipdDelta_Offset, ipdDelta_MaxVal, error);
458 break;
459
460 case PS_DELTA_TIME:
461 codeTable = ipdDeltaTime_Code;
462 lengthTable = ipdDeltaTime_Length;
463
464 bitCnt += encodeDeltaTime(hBitBuf, ipdVal, ipdValLast, nBands, codeTable,
465 lengthTable, ipdDelta_Offset, ipdDelta_MaxVal, error);
466 break;
467
468 default:
469 *error = 1;
470 }
471
472 return bitCnt;
473 }
474
FDKsbrEnc_EncodeOpd(HANDLE_FDK_BITSTREAM hBitBuf,const INT * opdVal,const INT * opdValLast,const INT nBands,const PS_DELTA mode,INT * error)475 INT FDKsbrEnc_EncodeOpd(HANDLE_FDK_BITSTREAM hBitBuf,
476 const INT *opdVal,
477 const INT *opdValLast,
478 const INT nBands,
479 const PS_DELTA mode,
480 INT *error)
481 {
482 const UINT *codeTable;
483 const UINT *lengthTable;
484 INT bitCnt = 0;
485
486 switch(mode) {
487 case PS_DELTA_FREQ:
488 codeTable = opdDeltaFreq_Code;
489 lengthTable = opdDeltaFreq_Length;
490 bitCnt += encodeDeltaFreq(hBitBuf, opdVal, nBands, codeTable,
491 lengthTable, opdDelta_Offset, opdDelta_MaxVal, error);
492 break;
493
494 case PS_DELTA_TIME:
495 codeTable = opdDeltaTime_Code;
496 lengthTable = opdDeltaTime_Length;
497
498 bitCnt += encodeDeltaTime(hBitBuf, opdVal, opdValLast, nBands, codeTable,
499 lengthTable, opdDelta_Offset, opdDelta_MaxVal, error);
500 break;
501
502 default:
503 *error = 1;
504 }
505
506 return bitCnt;
507 }
508
encodeIpdOpd(HANDLE_PS_OUT psOut,HANDLE_FDK_BITSTREAM hBitBuf)509 static INT encodeIpdOpd(HANDLE_PS_OUT psOut,
510 HANDLE_FDK_BITSTREAM hBitBuf )
511 {
512 INT bitCnt = 0;
513 INT error = 0;
514 INT env;
515
516 FDKsbrEnc_WriteBits_ps(hBitBuf, psOut->enableIpdOpd, 1);
517
518 if(psOut->enableIpdOpd==1) {
519 INT *ipdLast = psOut->ipdLast;
520 INT *opdLast = psOut->opdLast;
521
522 for(env=0; env<psOut->nEnvelopes; env++) {
523 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaIPD[env], 1);
524 bitCnt += FDKsbrEnc_EncodeIpd( hBitBuf,
525 psOut->ipd[env],
526 ipdLast,
527 getNoBands((PS_RESOLUTION)psOut->iidMode),
528 psOut->deltaIPD[env],
529 &error);
530
531 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaOPD[env], 1);
532 bitCnt += FDKsbrEnc_EncodeOpd( hBitBuf,
533 psOut->opd[env],
534 opdLast,
535 getNoBands((PS_RESOLUTION)psOut->iidMode),
536 psOut->deltaOPD[env],
537 &error );
538 }
539 /* reserved bit */
540 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, 0, 1);
541 }
542
543
544 return bitCnt;
545 }
546
getEnvIdx(const INT nEnvelopes,const INT frameClass)547 static INT getEnvIdx(const INT nEnvelopes, const INT frameClass)
548 {
549 INT envIdx = 0;
550
551 switch(nEnvelopes) {
552 case 0:
553 envIdx = 0;
554 break;
555
556 case 1:
557 if (frameClass==0)
558 envIdx = 1;
559 else
560 envIdx = 0;
561 break;
562
563 case 2:
564 if (frameClass==0)
565 envIdx = 2;
566 else
567 envIdx = 1;
568 break;
569
570 case 3:
571 envIdx = 2;
572 break;
573
574 case 4:
575 envIdx = 3;
576 break;
577
578 default:
579 /* unsupported number of envelopes */
580 envIdx = 0;
581 }
582
583 return envIdx;
584 }
585
586
encodePSExtension(const HANDLE_PS_OUT psOut,HANDLE_FDK_BITSTREAM hBitBuf)587 static INT encodePSExtension(const HANDLE_PS_OUT psOut,
588 HANDLE_FDK_BITSTREAM hBitBuf )
589 {
590 INT bitCnt = 0;
591
592 if(psOut->enableIpdOpd==1) {
593 INT ipdOpdBits = 0;
594 INT extSize = (2 + encodeIpdOpd(psOut,NULL)+7)>>3;
595
596 if(extSize<15) {
597 bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, extSize, 4);
598 }
599 else {
600 bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, 15 , 4);
601 bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, (extSize-15), 8);
602 }
603
604 /* write ipd opd data */
605 ipdOpdBits += FDKsbrEnc_WriteBits_ps(hBitBuf, PS_EXT_ID_V0, 2);
606 ipdOpdBits += encodeIpdOpd(psOut, hBitBuf );
607
608 /* byte align the ipd opd data */
609 if(ipdOpdBits%8)
610 ipdOpdBits += FDKsbrEnc_WriteBits_ps(hBitBuf, 0, (8-(ipdOpdBits%8)) );
611
612 bitCnt += ipdOpdBits;
613 }
614
615 return (bitCnt);
616 }
617
FDKsbrEnc_WritePSBitstream(const HANDLE_PS_OUT psOut,HANDLE_FDK_BITSTREAM hBitBuf)618 INT FDKsbrEnc_WritePSBitstream(const HANDLE_PS_OUT psOut,
619 HANDLE_FDK_BITSTREAM hBitBuf )
620 {
621 INT psExtEnable = 0;
622 INT bitCnt = 0;
623 INT error = 0;
624 INT env;
625
626 if(psOut != NULL){
627
628 /* PS HEADER */
629 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->enablePSHeader, 1);
630
631 if(psOut->enablePSHeader) {
632
633 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->enableIID, 1);
634 if(psOut->enableIID) {
635 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->iidMode, 3);
636 }
637 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->enableICC, 1);
638 if(psOut->enableICC) {
639 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->iccMode, 3);
640 }
641 if(psOut->enableIpdOpd) {
642 psExtEnable = 1;
643 }
644 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psExtEnable, 1);
645 }
646
647 /* Frame class, number of envelopes */
648 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->frameClass, 1);
649 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, getEnvIdx(psOut->nEnvelopes, psOut->frameClass), 2);
650
651 if(psOut->frameClass==1) {
652 for(env=0; env<psOut->nEnvelopes; env++) {
653 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->frameBorder[env], 5);
654 }
655 }
656
657 if(psOut->enableIID==1) {
658 INT *iidLast = psOut->iidLast;
659 for(env=0; env<psOut->nEnvelopes; env++) {
660 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaIID[env], 1);
661 bitCnt += FDKsbrEnc_EncodeIid( hBitBuf,
662 psOut->iid[env],
663 iidLast,
664 getNoBands((PS_RESOLUTION)psOut->iidMode),
665 (PS_IID_RESOLUTION)getIIDRes(psOut->iidMode),
666 psOut->deltaIID[env],
667 &error );
668
669 iidLast = psOut->iid[env];
670 }
671 }
672
673 if(psOut->enableICC==1) {
674 INT *iccLast = psOut->iccLast;
675 for(env=0; env<psOut->nEnvelopes; env++) {
676 bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaICC[env], 1);
677 bitCnt += FDKsbrEnc_EncodeIcc( hBitBuf,
678 psOut->icc[env],
679 iccLast,
680 getNoBands((PS_RESOLUTION)psOut->iccMode),
681 psOut->deltaICC[env],
682 &error);
683
684 iccLast = psOut->icc[env];
685 }
686 }
687
688 if(psExtEnable!=0) {
689 bitCnt += encodePSExtension(psOut, hBitBuf);
690 }
691
692 } /* if(psOut != NULL) */
693
694 return bitCnt;
695 }
696
697