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00030 #include "asterisk.h"
00031
00032 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 267539 $")
00033
00034 #include <fcntl.h>
00035 #include <netinet/in.h>
00036 #include <stdio.h>
00037 #include <stdlib.h>
00038 #include <string.h>
00039 #include <unistd.h>
00040
00041 #include "asterisk/lock.h"
00042 #include "asterisk/logger.h"
00043 #include "asterisk/linkedlists.h"
00044 #include "asterisk/module.h"
00045 #include "asterisk/config.h"
00046 #include "asterisk/options.h"
00047 #include "asterisk/translate.h"
00048 #include "asterisk/channel.h"
00049 #include "asterisk/utils.h"
00050
00051 #define WANT_ASM
00052 #include "log2comp.h"
00053
00054
00055
00056
00057 #if defined(NOT_BLI)
00058 # if defined(_MSC_VER)
00059 typedef __int64 sint64;
00060 # elif defined(__GNUC__)
00061 typedef long long sint64;
00062 # else
00063 # error 64-bit integer type is not defined for your compiler/platform
00064 # endif
00065 #endif
00066
00067 #define BUFFER_SAMPLES 8096
00068 #define BUF_SHIFT 5
00069
00070
00071
00072 #include "slin_g726_ex.h"
00073 #include "g726_slin_ex.h"
00074
00075
00076
00077
00078
00079
00080
00081
00082
00083
00084 struct g726_state {
00085 long yl;
00086 int yu;
00087 int dms;
00088 int dml;
00089 int ap;
00090 int a[2];
00091
00092 int b[6];
00093
00094 int pk[2];
00095
00096 int dq[6];
00097
00098
00099 int sr[2];
00100
00101
00102 int td;
00103 };
00104
00105 static int qtab_721[7] = {-124, 80, 178, 246, 300, 349, 400};
00106
00107
00108
00109
00110 static int _dqlntab[16] = {-2048, 4, 135, 213, 273, 323, 373, 425,
00111 425, 373, 323, 273, 213, 135, 4, -2048};
00112
00113
00114 static int _witab[16] = {-12, 18, 41, 64, 112, 198, 355, 1122,
00115 1122, 355, 198, 112, 64, 41, 18, -12};
00116
00117
00118
00119
00120
00121 static int _fitab[16] = {0, 0, 0, 0x200, 0x200, 0x200, 0x600, 0xE00,
00122 0xE00, 0x600, 0x200, 0x200, 0x200, 0, 0, 0};
00123
00124
00125
00126
00127
00128
00129
00130
00131
00132 static void g726_init_state(struct g726_state *state_ptr)
00133 {
00134 int cnta;
00135
00136 state_ptr->yl = 34816;
00137 state_ptr->yu = 544;
00138 state_ptr->dms = 0;
00139 state_ptr->dml = 0;
00140 state_ptr->ap = 0;
00141 for (cnta = 0; cnta < 2; cnta++) {
00142 state_ptr->a[cnta] = 0;
00143 state_ptr->pk[cnta] = 0;
00144 #ifdef NOT_BLI
00145 state_ptr->sr[cnta] = 1;
00146 #else
00147 state_ptr->sr[cnta] = 32;
00148 #endif
00149 }
00150 for (cnta = 0; cnta < 6; cnta++) {
00151 state_ptr->b[cnta] = 0;
00152 #ifdef NOT_BLI
00153 state_ptr->dq[cnta] = 1;
00154 #else
00155 state_ptr->dq[cnta] = 32;
00156 #endif
00157 }
00158 state_ptr->td = 0;
00159 }
00160
00161
00162
00163
00164
00165
00166
00167
00168
00169 static int quan(int val, int *table, int size)
00170 {
00171 int i;
00172
00173 for (i = 0; i < size && val >= *table; ++i, ++table)
00174 ;
00175 return (i);
00176 }
00177
00178 #ifdef NOT_BLI
00179
00180
00181
00182
00183
00184
00185
00186 static int predictor_zero(struct g726_state *state_ptr)
00187 {
00188 int i;
00189 sint64 sezi;
00190 for (sezi = 0, i = 0; i < 6; i++)
00191 sezi += (sint64)state_ptr->b[i] * state_ptr->dq[i];
00192 return (int)(sezi >> 13) / 2 ;
00193 }
00194
00195
00196
00197
00198
00199
00200
00201 static int predictor_pole(struct g726_state *state_ptr)
00202 {
00203 return (int)(((sint64)state_ptr->a[1] * state_ptr->sr[1] +
00204 (sint64)state_ptr->a[0] * state_ptr->sr[0]) >> 13) / 2 ;
00205 }
00206
00207 #else
00208
00209
00210
00211
00212
00213
00214 static int fmult(int an, int srn)
00215 {
00216 int anmag, anexp, anmant;
00217 int wanexp, wanmant;
00218 int retval;
00219
00220 anmag = (an > 0) ? an : ((-an) & 0x1FFF);
00221 anexp = ilog2(anmag) - 5;
00222 anmant = (anmag == 0) ? 32 :
00223 (anexp >= 0) ? anmag >> anexp : anmag << -anexp;
00224 wanexp = anexp + ((srn >> 6) & 0xF) - 13;
00225
00226 wanmant = (anmant * (srn & 077) + 0x30) >> 4;
00227 retval = (wanexp >= 0) ? ((wanmant << wanexp) & 0x7FFF) :
00228 (wanmant >> -wanexp);
00229
00230 return (((an ^ srn) < 0) ? -retval : retval);
00231 }
00232
00233 static int predictor_zero(struct g726_state *state_ptr)
00234 {
00235 int i;
00236 int sezi;
00237 for (sezi = 0, i = 0; i < 6; i++)
00238 sezi += fmult(state_ptr->b[i] >> 2, state_ptr->dq[i]);
00239 return sezi;
00240 }
00241
00242 static int predictor_pole(struct g726_state *state_ptr)
00243 {
00244 return (fmult(state_ptr->a[1] >> 2, state_ptr->sr[1]) +
00245 fmult(state_ptr->a[0] >> 2, state_ptr->sr[0]));
00246 }
00247
00248 #endif
00249
00250
00251
00252
00253
00254
00255
00256 static int step_size(struct g726_state *state_ptr)
00257 {
00258 int y;
00259 int dif;
00260 int al;
00261
00262 if (state_ptr->ap >= 256)
00263 return (state_ptr->yu);
00264 else {
00265 y = state_ptr->yl >> 6;
00266 dif = state_ptr->yu - y;
00267 al = state_ptr->ap >> 2;
00268 if (dif > 0)
00269 y += (dif * al) >> 6;
00270 else if (dif < 0)
00271 y += (dif * al + 0x3F) >> 6;
00272 return (y);
00273 }
00274 }
00275
00276
00277
00278
00279
00280
00281
00282
00283
00284
00285 static int quantize(
00286 int d,
00287 int y,
00288 int *table,
00289 int size)
00290 {
00291 int dqm;
00292 int exp;
00293 int mant;
00294 int dl;
00295 int dln;
00296 int i;
00297
00298
00299
00300
00301
00302
00303 dqm = abs(d);
00304 exp = ilog2(dqm);
00305 if (exp < 0)
00306 exp = 0;
00307 mant = ((dqm << 7) >> exp) & 0x7F;
00308 dl = (exp << 7) | mant;
00309
00310
00311
00312
00313
00314
00315 dln = dl - (y >> 2);
00316
00317
00318
00319
00320
00321
00322 i = quan(dln, table, size);
00323 if (d < 0)
00324 return ((size << 1) + 1 - i);
00325 else if (i == 0)
00326 return ((size << 1) + 1);
00327 else
00328 return (i);
00329 }
00330
00331
00332
00333
00334
00335
00336
00337
00338 static int reconstruct(
00339 int sign,
00340 int dqln,
00341 int y)
00342 {
00343 int dql;
00344 int dex;
00345 int dqt;
00346 int dq;
00347
00348 dql = dqln + (y >> 2);
00349
00350 if (dql < 0) {
00351 #ifdef NOT_BLI
00352 return (sign) ? -1 : 1;
00353 #else
00354 return (sign) ? -0x8000 : 0;
00355 #endif
00356 } else {
00357 dex = (dql >> 7) & 15;
00358 dqt = 128 + (dql & 127);
00359 #ifdef NOT_BLI
00360 dq = ((dqt << 19) >> (14 - dex));
00361 return (sign) ? -dq : dq;
00362 #else
00363 dq = (dqt << 7) >> (14 - dex);
00364 return (sign) ? (dq - 0x8000) : dq;
00365 #endif
00366 }
00367 }
00368
00369
00370
00371
00372
00373
00374 static void update(
00375 int code_size,
00376 int y,
00377 int wi,
00378 int fi,
00379 int dq,
00380 int sr,
00381 int dqsez,
00382 struct g726_state *state_ptr)
00383 {
00384 int cnt;
00385 int mag;
00386 #ifndef NOT_BLI
00387 int exp;
00388 #endif
00389 int a2p=0;
00390 int a1ul;
00391 int pks1;
00392 int fa1;
00393 int tr;
00394 int ylint, thr2, dqthr;
00395 int ylfrac, thr1;
00396 int pk0;
00397
00398 pk0 = (dqsez < 0) ? 1 : 0;
00399
00400 #ifdef NOT_BLI
00401 mag = abs(dq / 0x1000);
00402 #else
00403 mag = dq & 0x7FFF;
00404 #endif
00405
00406 ylint = state_ptr->yl >> 15;
00407 ylfrac = (state_ptr->yl >> 10) & 0x1F;
00408 thr1 = (32 + ylfrac) << ylint;
00409 thr2 = (ylint > 9) ? 31 << 10 : thr1;
00410 dqthr = (thr2 + (thr2 >> 1)) >> 1;
00411 if (state_ptr->td == 0)
00412 tr = 0;
00413 else if (mag <= dqthr)
00414 tr = 0;
00415 else
00416 tr = 1;
00417
00418
00419
00420
00421
00422
00423
00424 state_ptr->yu = y + ((wi - y) >> 5);
00425
00426
00427 if (state_ptr->yu < 544)
00428 state_ptr->yu = 544;
00429 else if (state_ptr->yu > 5120)
00430 state_ptr->yu = 5120;
00431
00432
00433
00434 state_ptr->yl += state_ptr->yu + ((-state_ptr->yl) >> 6);
00435
00436
00437
00438
00439 if (tr == 1) {
00440 state_ptr->a[0] = 0;
00441 state_ptr->a[1] = 0;
00442 state_ptr->b[0] = 0;
00443 state_ptr->b[1] = 0;
00444 state_ptr->b[2] = 0;
00445 state_ptr->b[3] = 0;
00446 state_ptr->b[4] = 0;
00447 state_ptr->b[5] = 0;
00448 } else {
00449 pks1 = pk0 ^ state_ptr->pk[0];
00450
00451
00452 a2p = state_ptr->a[1] - (state_ptr->a[1] >> 7);
00453 if (dqsez != 0) {
00454 fa1 = (pks1) ? state_ptr->a[0] : -state_ptr->a[0];
00455 if (fa1 < -8191)
00456 a2p -= 0x100;
00457 else if (fa1 > 8191)
00458 a2p += 0xFF;
00459 else
00460 a2p += fa1 >> 5;
00461
00462 if (pk0 ^ state_ptr->pk[1])
00463
00464 if (a2p <= -12160)
00465 a2p = -12288;
00466 else if (a2p >= 12416)
00467 a2p = 12288;
00468 else
00469 a2p -= 0x80;
00470 else if (a2p <= -12416)
00471 a2p = -12288;
00472 else if (a2p >= 12160)
00473 a2p = 12288;
00474 else
00475 a2p += 0x80;
00476 }
00477
00478
00479 state_ptr->a[1] = a2p;
00480
00481
00482
00483 state_ptr->a[0] -= state_ptr->a[0] >> 8;
00484 if (dqsez != 0) {
00485 if (pks1 == 0)
00486 state_ptr->a[0] += 192;
00487 else
00488 state_ptr->a[0] -= 192;
00489 }
00490
00491 a1ul = 15360 - a2p;
00492 if (state_ptr->a[0] < -a1ul)
00493 state_ptr->a[0] = -a1ul;
00494 else if (state_ptr->a[0] > a1ul)
00495 state_ptr->a[0] = a1ul;
00496
00497
00498 for (cnt = 0; cnt < 6; cnt++) {
00499 if (code_size == 5)
00500 state_ptr->b[cnt] -= state_ptr->b[cnt] >> 9;
00501 else
00502 state_ptr->b[cnt] -= state_ptr->b[cnt] >> 8;
00503 if (mag)
00504 {
00505 if ((dq ^ state_ptr->dq[cnt]) >= 0)
00506 state_ptr->b[cnt] += 128;
00507 else
00508 state_ptr->b[cnt] -= 128;
00509 }
00510 }
00511 }
00512
00513 for (cnt = 5; cnt > 0; cnt--)
00514 state_ptr->dq[cnt] = state_ptr->dq[cnt-1];
00515 #ifdef NOT_BLI
00516 state_ptr->dq[0] = dq;
00517 #else
00518
00519 if (mag == 0) {
00520 state_ptr->dq[0] = (dq >= 0) ? 0x20 : 0x20 - 0x400;
00521 } else {
00522 exp = ilog2(mag) + 1;
00523 state_ptr->dq[0] = (dq >= 0) ?
00524 (exp << 6) + ((mag << 6) >> exp) :
00525 (exp << 6) + ((mag << 6) >> exp) - 0x400;
00526 }
00527 #endif
00528
00529 state_ptr->sr[1] = state_ptr->sr[0];
00530 #ifdef NOT_BLI
00531 state_ptr->sr[0] = sr;
00532 #else
00533
00534 if (sr == 0) {
00535 state_ptr->sr[0] = 0x20;
00536 } else if (sr > 0) {
00537 exp = ilog2(sr) + 1;
00538 state_ptr->sr[0] = (exp << 6) + ((sr << 6) >> exp);
00539 } else if (sr > -0x8000) {
00540 mag = -sr;
00541 exp = ilog2(mag) + 1;
00542 state_ptr->sr[0] = (exp << 6) + ((mag << 6) >> exp) - 0x400;
00543 } else
00544 state_ptr->sr[0] = 0x20 - 0x400;
00545 #endif
00546
00547
00548 state_ptr->pk[1] = state_ptr->pk[0];
00549 state_ptr->pk[0] = pk0;
00550
00551
00552 if (tr == 1)
00553 state_ptr->td = 0;
00554 else if (a2p < -11776)
00555 state_ptr->td = 1;
00556 else
00557 state_ptr->td = 0;
00558
00559
00560
00561
00562 state_ptr->dms += (fi - state_ptr->dms) >> 5;
00563 state_ptr->dml += (((fi << 2) - state_ptr->dml) >> 7);
00564
00565 if (tr == 1)
00566 state_ptr->ap = 256;
00567 else if (y < 1536)
00568 state_ptr->ap += (0x200 - state_ptr->ap) >> 4;
00569 else if (state_ptr->td == 1)
00570 state_ptr->ap += (0x200 - state_ptr->ap) >> 4;
00571 else if (abs((state_ptr->dms << 2) - state_ptr->dml) >=
00572 (state_ptr->dml >> 3))
00573 state_ptr->ap += (0x200 - state_ptr->ap) >> 4;
00574 else
00575 state_ptr->ap += (-state_ptr->ap) >> 4;
00576 }
00577
00578
00579
00580
00581
00582
00583
00584
00585
00586
00587 static int g726_decode(int i, struct g726_state *state_ptr)
00588 {
00589 int sezi, sez, se;
00590 int y;
00591 int sr;
00592 int dq;
00593 int dqsez;
00594
00595 i &= 0x0f;
00596 #ifdef NOT_BLI
00597 sezi = predictor_zero(state_ptr);
00598 sez = sezi;
00599 se = sezi + predictor_pole(state_ptr);
00600 #else
00601 sezi = predictor_zero(state_ptr);
00602 sez = sezi >> 1;
00603 se = (sezi + predictor_pole(state_ptr)) >> 1;
00604 #endif
00605
00606 y = step_size(state_ptr);
00607
00608 dq = reconstruct(i & 8, _dqlntab[i], y);
00609
00610 #ifdef NOT_BLI
00611 sr = se + dq;
00612 dqsez = dq + sez;
00613 #else
00614 sr = (dq < 0) ? se - (dq & 0x3FFF) : se + dq;
00615 dqsez = sr - se + sez;
00616 #endif
00617
00618 update(4, y, _witab[i] << 5, _fitab[i], dq, sr, dqsez, state_ptr);
00619
00620 #ifdef NOT_BLI
00621 return (sr >> 10);
00622 #else
00623 return (sr << 2);
00624 #endif
00625 }
00626
00627
00628
00629
00630
00631
00632
00633 static int g726_encode(int sl, struct g726_state *state_ptr)
00634 {
00635 int sezi, se, sez;
00636 int d;
00637 int sr;
00638 int y;
00639 int dqsez;
00640 int dq, i;
00641
00642 #ifdef NOT_BLI
00643 sl <<= 10;
00644
00645 sezi = predictor_zero(state_ptr);
00646 sez = sezi;
00647 se = sezi + predictor_pole(state_ptr);
00648 #else
00649 sl >>= 2;
00650
00651 sezi = predictor_zero(state_ptr);
00652 sez = sezi >> 1;
00653 se = (sezi + predictor_pole(state_ptr)) >> 1;
00654 #endif
00655
00656 d = sl - se;
00657
00658
00659 y = step_size(state_ptr);
00660 #ifdef NOT_BLI
00661 d /= 0x1000;
00662 #endif
00663 i = quantize(d, y, qtab_721, 7);
00664
00665 dq = reconstruct(i & 8, _dqlntab[i], y);
00666
00667 #ifdef NOT_BLI
00668 sr = se + dq;
00669 dqsez = dq + sez;
00670 #else
00671 sr = (dq < 0) ? se - (dq & 0x3FFF) : se + dq;
00672 dqsez = sr - se + sez;
00673 #endif
00674
00675 update(4, y, _witab[i] << 5, _fitab[i], dq, sr, dqsez, state_ptr);
00676
00677 return (i);
00678 }
00679
00680
00681
00682
00683
00684
00685 struct g726_coder_pvt {
00686
00687 unsigned char next_flag;
00688 struct g726_state g726;
00689 };
00690
00691
00692 static int lintog726_new(struct ast_trans_pvt *pvt)
00693 {
00694 struct g726_coder_pvt *tmp = pvt->pvt;
00695
00696 g726_init_state(&tmp->g726);
00697
00698 return 0;
00699 }
00700
00701
00702 static int g726aal2tolin_framein (struct ast_trans_pvt *pvt, struct ast_frame *f)
00703 {
00704 struct g726_coder_pvt *tmp = pvt->pvt;
00705 unsigned char *src = f->data;
00706 int16_t *dst = (int16_t *) pvt->outbuf + pvt->samples;
00707 unsigned int i;
00708
00709 for (i = 0; i < f->datalen; i++) {
00710 *dst++ = g726_decode((src[i] >> 4) & 0xf, &tmp->g726);
00711 *dst++ = g726_decode(src[i] & 0x0f, &tmp->g726);
00712 }
00713
00714 pvt->samples += f->samples;
00715 pvt->datalen += 2 * f->samples;
00716
00717 return 0;
00718 }
00719
00720
00721 static int lintog726aal2_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
00722 {
00723 struct g726_coder_pvt *tmp = pvt->pvt;
00724 int16_t *src = f->data;
00725 unsigned int i;
00726
00727 for (i = 0; i < f->samples; i++) {
00728 unsigned char d = g726_encode(src[i], &tmp->g726);
00729
00730 if (tmp->next_flag & 0x80) {
00731 pvt->outbuf[pvt->datalen++] = ((tmp->next_flag & 0xf)<< 4) | d;
00732 pvt->samples += 2;
00733 tmp->next_flag = 0;
00734 } else {
00735 tmp->next_flag = 0x80 | d;
00736 }
00737 }
00738
00739 return 0;
00740 }
00741
00742
00743 static int g726tolin_framein (struct ast_trans_pvt *pvt, struct ast_frame *f)
00744 {
00745 struct g726_coder_pvt *tmp = pvt->pvt;
00746 unsigned char *src = f->data;
00747 int16_t *dst = (int16_t *) pvt->outbuf + pvt->samples;
00748 unsigned int i;
00749
00750 for (i = 0; i < f->datalen; i++) {
00751 *dst++ = g726_decode(src[i] & 0x0f, &tmp->g726);
00752 *dst++ = g726_decode((src[i] >> 4) & 0xf, &tmp->g726);
00753 }
00754
00755 pvt->samples += f->samples;
00756 pvt->datalen += 2 * f->samples;
00757
00758 return 0;
00759 }
00760
00761
00762 static int lintog726_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
00763 {
00764 struct g726_coder_pvt *tmp = pvt->pvt;
00765 int16_t *src = f->data;
00766 unsigned int i;
00767
00768 for (i = 0; i < f->samples; i++) {
00769 unsigned char d = g726_encode(src[i], &tmp->g726);
00770
00771 if (tmp->next_flag & 0x80) {
00772 pvt->outbuf[pvt->datalen++] = (d << 4) | (tmp->next_flag & 0xf);
00773 pvt->samples += 2;
00774 tmp->next_flag = 0;
00775 } else {
00776 tmp->next_flag = 0x80 | d;
00777 }
00778 }
00779
00780 return 0;
00781 }
00782
00783 static struct ast_frame *g726tolin_sample(void)
00784 {
00785 static struct ast_frame f = {
00786 .frametype = AST_FRAME_VOICE,
00787 .subclass = AST_FORMAT_G726,
00788 .datalen = sizeof(g726_slin_ex),
00789 .samples = sizeof(g726_slin_ex) * 2,
00790 .src = __PRETTY_FUNCTION__,
00791 .data = g726_slin_ex,
00792 };
00793
00794 return &f;
00795 }
00796
00797 static struct ast_frame *lintog726_sample (void)
00798 {
00799 static struct ast_frame f = {
00800 .frametype = AST_FRAME_VOICE,
00801 .subclass = AST_FORMAT_SLINEAR,
00802 .datalen = sizeof(slin_g726_ex),
00803 .samples = sizeof(slin_g726_ex) / 2,
00804 .src = __PRETTY_FUNCTION__,
00805 .data = slin_g726_ex,
00806 };
00807
00808 return &f;
00809 }
00810
00811 static struct ast_translator g726tolin = {
00812 .name = "g726tolin",
00813 .srcfmt = AST_FORMAT_G726,
00814 .dstfmt = AST_FORMAT_SLINEAR,
00815 .newpvt = lintog726_new,
00816 .framein = g726tolin_framein,
00817 .sample = g726tolin_sample,
00818 .desc_size = sizeof(struct g726_coder_pvt),
00819 .buffer_samples = BUFFER_SAMPLES,
00820 .buf_size = BUFFER_SAMPLES * 2,
00821 };
00822
00823 static struct ast_translator lintog726 = {
00824 .name = "lintog726",
00825 .srcfmt = AST_FORMAT_SLINEAR,
00826 .dstfmt = AST_FORMAT_G726,
00827 .newpvt = lintog726_new,
00828 .framein = lintog726_framein,
00829 .sample = lintog726_sample,
00830 .desc_size = sizeof(struct g726_coder_pvt),
00831 .buffer_samples = BUFFER_SAMPLES,
00832 .buf_size = BUFFER_SAMPLES/2,
00833 };
00834
00835 static struct ast_translator g726aal2tolin = {
00836 .name = "g726aal2tolin",
00837 .srcfmt = AST_FORMAT_G726_AAL2,
00838 .dstfmt = AST_FORMAT_SLINEAR,
00839 .newpvt = lintog726_new,
00840 .framein = g726aal2tolin_framein,
00841 .sample = g726tolin_sample,
00842 .desc_size = sizeof(struct g726_coder_pvt),
00843 .buffer_samples = BUFFER_SAMPLES,
00844 .buf_size = BUFFER_SAMPLES * 2,
00845 };
00846
00847 static struct ast_translator lintog726aal2 = {
00848 .name = "lintog726aal2",
00849 .srcfmt = AST_FORMAT_SLINEAR,
00850 .dstfmt = AST_FORMAT_G726_AAL2,
00851 .newpvt = lintog726_new,
00852 .framein = lintog726aal2_framein,
00853 .sample = lintog726_sample,
00854 .desc_size = sizeof(struct g726_coder_pvt),
00855 .buffer_samples = BUFFER_SAMPLES,
00856 .buf_size = BUFFER_SAMPLES / 2,
00857 };
00858
00859 static int reload(void)
00860 {
00861 return 0;
00862 }
00863
00864 static int unload_module(void)
00865 {
00866 int res = 0;
00867
00868 res |= ast_unregister_translator(&g726tolin);
00869 res |= ast_unregister_translator(&lintog726);
00870
00871 res |= ast_unregister_translator(&g726aal2tolin);
00872 res |= ast_unregister_translator(&lintog726aal2);
00873
00874 return res;
00875 }
00876
00877 static int load_module(void)
00878 {
00879 int res = 0;
00880
00881 res |= ast_register_translator(&g726tolin);
00882 res |= ast_register_translator(&lintog726);
00883
00884 res |= ast_register_translator(&g726aal2tolin);
00885 res |= ast_register_translator(&lintog726aal2);
00886
00887 if (res)
00888 unload_module();
00889
00890 return res;
00891 }
00892
00893 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "ITU G.726-32kbps G726 Transcoder",
00894 .load = load_module,
00895 .unload = unload_module,
00896 .reload = reload,
00897 );