Lines Matching refs:sbr
81 static void sbr_turnoff(SpectralBandReplication *sbr) {
82 sbr->start = 0;
83 sbr->ready_for_dequant = 0;
85 sbr->kx[1] = 32; //Typo in spec, kx' inits to 32
86 sbr->m[1] = 0;
88 sbr->data[0].e_a[1] = sbr->data[1].e_a[1] = -1;
89 memset(&sbr->spectrum_params, -1, sizeof(SpectrumParameters));
92 av_cold void AAC_RENAME(ff_aac_sbr_ctx_init)(AACContext *ac, SpectralBandReplication *sbr, int id_aac)
94 if(sbr->mdct.mdct_bits)
96 sbr->kx[0] = sbr->kx[1];
97 sbr->id_aac = id_aac;
98 sbr_turnoff(sbr);
99 sbr->data[0].synthesis_filterbank_samples_offset = SBR_SYNTHESIS_BUF_SIZE - (1280 - 128);
100 sbr->data[1].synthesis_filterbank_samples_offset = SBR_SYNTHESIS_BUF_SIZE - (1280 - 128);
104 AAC_RENAME_32(ff_mdct_init)(&sbr->mdct, 7, 1, 1.0 / (64 * 32768.0));
105 AAC_RENAME_32(ff_mdct_init)(&sbr->mdct_ana, 7, 1, -2.0 * 32768.0);
106 AAC_RENAME(ff_ps_ctx_init)(&sbr->ps);
107 AAC_RENAME(ff_sbrdsp_init)(&sbr->dsp);
108 aacsbr_func_ptr_init(&sbr->c);
111 av_cold void AAC_RENAME(ff_aac_sbr_ctx_close)(SpectralBandReplication *sbr)
113 AAC_RENAME_32(ff_mdct_end)(&sbr->mdct);
114 AAC_RENAME_32(ff_mdct_end)(&sbr->mdct_ana);
132 static void sbr_make_f_tablelim(SpectralBandReplication *sbr)
135 if (sbr->bs_limiter_bands > 0) {
139 const INTFLOAT lim_bands_per_octave_warped = bands_warped[sbr->bs_limiter_bands - 1];
141 uint16_t *in = sbr->f_tablelim + 1, *out = sbr->f_tablelim;
143 patch_borders[0] = sbr->kx[1];
144 for (k = 1; k <= sbr->num_patches; k++)
145 patch_borders[k] = patch_borders[k-1] + sbr->patch_num_subbands[k-1];
147 memcpy(sbr->f_tablelim, sbr->f_tablelow,
148 (sbr->n[0] + 1) * sizeof(sbr->f_tablelow[0]));
149 if (sbr->num_patches > 1)
150 memcpy(sbr->f_tablelim + sbr->n[0] + 1, patch_borders + 1,
151 (sbr->num_patches - 1) * sizeof(patch_borders[0]));
153 AV_QSORT(sbr->f_tablelim, sbr->num_patches + sbr->n[0],
157 sbr->n_lim = sbr->n[0] + sbr->num_patches - 1;
158 while (out < sbr->f_tablelim + sbr->n_lim) {
166 !in_table_int16(patch_borders, sbr->num_patches, *in)) {
168 sbr->n_lim--;
169 } else if (!in_table_int16(patch_borders, sbr->num_patches, *out)) {
171 sbr->n_lim--;
177 sbr->f_tablelim[0] = sbr->f_tablelow[0];
178 sbr->f_tablelim[1] = sbr->f_tablelow[sbr->n[0]];
179 sbr->n_lim = 1;
183 static unsigned int read_sbr_header(SpectralBandReplication *sbr, GetBitContext *gb)
188 int old_bs_limiter_bands = sbr->bs_limiter_bands;
191 sbr->start = 1;
192 sbr->ready_for_dequant = 0;
195 memcpy(&old_spectrum_params, &sbr->spectrum_params, sizeof(SpectrumParameters));
197 sbr->bs_amp_res_header = get_bits1(gb);
198 sbr->spectrum_params.bs_start_freq = get_bits(gb, 4);
199 sbr->spectrum_params.bs_stop_freq = get_bits(gb, 4);
200 sbr->spectrum_params.bs_xover_band = get_bits(gb, 3);
207 sbr->spectrum_params.bs_freq_scale = get_bits(gb, 2);
208 sbr->spectrum_params.bs_alter_scale = get_bits1(gb);
209 sbr->spectrum_params.bs_noise_bands = get_bits(gb, 2);
211 sbr->spectrum_params.bs_freq_scale = 2;
212 sbr->spectrum_params.bs_alter_scale = 1;
213 sbr->spectrum_params.bs_noise_bands = 2;
217 if (memcmp(&old_spectrum_params, &sbr->spectrum_params, sizeof(SpectrumParameters)))
218 sbr->reset = 1;
221 sbr->bs_limiter_bands = get_bits(gb, 2);
222 sbr->bs_limiter_gains = get_bits(gb, 2);
223 sbr->bs_interpol_freq = get_bits1(gb);
224 sbr->bs_smoothing_mode = get_bits1(gb);
226 sbr->bs_limiter_bands = 2;
227 sbr->bs_limiter_gains = 2;
228 sbr->bs_interpol_freq = 1;
229 sbr->bs_smoothing_mode = 1;
232 if (sbr->bs_limiter_bands != old_bs_limiter_bands && !sbr->reset)
233 sbr_make_f_tablelim(sbr);
263 static int sbr_make_f_master(AACContext *ac, SpectralBandReplication *sbr,
272 switch (sbr->sample_rate) {
293 "Unsupported sample rate for SBR: %d\n", sbr->sample_rate);
297 if (sbr->sample_rate < 32000) {
299 } else if (sbr->sample_rate < 64000) {
304 start_min = ((temp << 7) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
305 stop_min = ((temp << 8) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
307 sbr->k[0] = start_min + sbr_offset_ptr[spectrum->bs_start_freq];
310 sbr->k[2] = stop_min;
314 sbr->k[2] += stop_dk[k];
316 sbr->k[2] = 2*sbr->k[0];
318 sbr->k[2] = 3*sbr->k[0];
324 sbr->k[2] = FFMIN(64, sbr->k[2]);
327 if (sbr->sample_rate <= 32000) {
329 } else if (sbr->sample_rate == 44100) {
331 } else if (sbr->sample_rate >= 48000)
336 if (sbr->k[2] - sbr->k[0] > max_qmf_subbands) {
338 "Invalid bitstream, too many QMF subbands: %d\n", sbr->k[2] - sbr->k[0]);
346 sbr->n_master = ((sbr->k[2] - sbr->k[0] + (dk&2)) >> dk) << 1;
347 if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
350 for (k = 1; k <= sbr->n_master; k++)
351 sbr->f_master[k] = dk;
353 k2diff = sbr->k[2] - sbr->k[0] - sbr->n_master * dk;
355 sbr->f_master[1]--;
356 sbr->f_master[2]-= (k2diff < -1);
358 sbr->f_master[sbr->n_master]++;
361 sbr->f_master[0] = sbr->k[0];
362 for (k = 1; k <= sbr->n_master; k++)
363 sbr->f_master[k] += sbr->f_master[k - 1];
374 if (49 * sbr->k[2] > 110 * sbr->k[0]) {
376 sbr->k[1] = 2 * sbr->k[0];
379 sbr->k[1] = sbr->k[2];
383 tmp = (sbr->k[1] << 23) / sbr->k[0];
393 num_bands_0 = lrintf(half_bands * log2f(sbr->k[1] / (float)sbr->k[0])) * 2;
403 make_bands(vk0+1, sbr->k[0], sbr->k[1], num_bands_0);
408 vk0[0] = sbr->k[0];
422 tmp = (sbr->k[2] << 23) / sbr->k[1];
438 log2f(sbr->k[2] / (float)sbr->k[1])) * 2;
440 make_bands(vk1+1, sbr->k[1], sbr->k[2], num_bands_1);
454 vk1[0] = sbr->k[1];
463 sbr->n_master = num_bands_0 + num_bands_1;
464 if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
466 memcpy(&sbr->f_master[0], vk0,
467 (num_bands_0 + 1) * sizeof(sbr->f_master[0]));
468 memcpy(&sbr->f_master[num_bands_0 + 1], vk1 + 1,
469 num_bands_1 * sizeof(sbr->f_master[0]));
472 sbr->n_master = num_bands_0;
473 if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
475 memcpy(sbr->f_master, vk0, (num_bands_0 + 1) * sizeof(sbr->f_master[0]));
483 static int sbr_hf_calc_npatches(AACContext *ac, SpectralBandReplication *sbr)
486 int msb = sbr->k[0];
487 int usb = sbr->kx[1];
488 int goal_sb = ((1000 << 11) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
490 sbr->num_patches = 0;
492 if (goal_sb < sbr->kx[1] + sbr->m[1]) {
493 for (k = 0; sbr->f_master[k] < goal_sb; k++) ;
495 k = sbr->n_master;
505 for (i = k; i == k || sb > (sbr->k[0] - 1 + msb - odd); i--) {
506 sb = sbr->f_master[i];
507 odd = (sb + sbr->k[0]) & 1;
514 if (sbr->num_patches > 5) {
515 av_log(ac->avctx, AV_LOG_ERROR, "Too many patches: %d\n", sbr->num_patches);
519 sbr->patch_num_subbands[sbr->num_patches] = FFMAX(sb - usb, 0);
520 sbr->patch_start_subband[sbr->num_patches] = sbr->k[0] - odd - sbr->patch_num_subbands[sbr->num_patches];
522 if (sbr->patch_num_subbands[sbr->num_patches] > 0) {
525 sbr->num_patches++;
527 msb = sbr->kx[1];
529 if (sbr->f_master[k] - sb < 3)
530 k = sbr->n_master;
531 } while (sb != sbr->kx[1] + sbr->m[1]);
533 if (sbr->num_patches > 1 &&
534 sbr->patch_num_subbands[sbr->num_patches - 1] < 3)
535 sbr->num_patches--;
541 static int sbr_make_f_derived(AACContext *ac, SpectralBandReplication *sbr)
548 sbr->n[1] = sbr->n_master - sbr->spectrum_params.bs_xover_band;
549 sbr->n[0] = (sbr->n[1] + 1) >> 1;
551 memcpy(sbr->f_tablehigh, &sbr->f_master[sbr->spectrum_params.bs_xover_band],
552 (sbr->n[1] + 1) * sizeof(sbr->f_master[0]));
553 sbr->m[1] = sbr->f_tablehigh[sbr->n[1]] - sbr->f_tablehigh[0];
554 sbr->kx[1] = sbr->f_tablehigh[0];
557 if (sbr->kx[1] + sbr->m[1] > 64) {
559 "Stop frequency border too high: %d\n", sbr->kx[1] + sbr->m[1]);
562 if (sbr->kx[1] > 32) {
563 av_log(ac->avctx, AV_LOG_ERROR, "Start frequency border too high: %d\n", sbr->kx[1]);
567 sbr->f_tablelow[0] = sbr->f_tablehigh[0];
568 temp = sbr->n[1] & 1;
569 for (k = 1; k <= sbr->n[0]; k++)
570 sbr->f_tablelow[k] = sbr->f_tablehigh[2 * k - temp];
572 temp = (sbr->k[2] << 23) / sbr->kx[1];
579 temp = (((temp + 0x80) >> 8) + ((8 - nz) << 23)) * sbr->spectrum_params.bs_noise_bands;
581 sbr->n_q = (temp + 0x400000) >> 23;
582 if (sbr->n_q < 1)
583 sbr->n_q = 1;
585 sbr->n_q = FFMAX(1, lrintf(sbr->spectrum_params.bs_noise_bands *
586 log2f(sbr->k[2] / (float)sbr->kx[1]))); // 0 <= bs_noise_bands <= 3
589 if (sbr->n_q > 5) {
590 av_log(ac->avctx, AV_LOG_ERROR, "Too many noise floor scale factors: %d\n", sbr->n_q);
594 sbr->f_tablenoise[0] = sbr->f_tablelow[0];
596 for (k = 1; k <= sbr->n_q; k++) {
597 temp += (sbr->n[0] - temp) / (sbr->n_q + 1 - k);
598 sbr->f_tablenoise[k] = sbr->f_tablelow[temp];
601 if (sbr_hf_calc_npatches(ac, sbr) < 0)
604 sbr_make_f_tablelim(sbr);
606 sbr->data[0].f_indexnoise = 0;
607 sbr->data[1].f_indexnoise = 0;
626 static int read_sbr_grid(AACContext *ac, SpectralBandReplication *sbr,
638 ch_data->bs_amp_res = sbr->bs_amp_res_header;
791 static void read_sbr_dtdf(SpectralBandReplication *sbr, GetBitContext *gb,
799 static void read_sbr_invf(SpectralBandReplication *sbr, GetBitContext *gb,
805 for (i = 0; i < sbr->n_q; i++)
809 static int read_sbr_envelope(AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb,
816 const int delta = (ch == 1 && sbr->bs_coupling == 1) + 1;
817 const int odd = sbr->n[1] & 1;
819 if (sbr->bs_coupling && ch) {
853 for (j = 0; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
861 for (j = 0; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
870 for (j = 0; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
881 for (j = 1; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
898 static int read_sbr_noise(AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb,
904 int delta = (ch == 1 && sbr->bs_coupling == 1) + 1;
906 if (sbr->bs_coupling && ch) {
920 for (j = 0; j < sbr->n_q; j++) {
929 for (j = 1; j < sbr->n_q; j++) {
945 static void read_sbr_extension(AACContext *ac, SpectralBandReplication *sbr,
956 *num_bits_left -= ff_ps_read_data(ac->avctx, gb, &sbr->ps.common, *num_bits_left);
971 SpectralBandReplication *sbr,
979 if (read_sbr_grid(ac, sbr, gb, &sbr->data[0]))
981 read_sbr_dtdf(sbr, gb, &sbr->data[0]);
982 read_sbr_invf(sbr, gb, &sbr->data[0]);
983 if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[0], 0)) < 0)
985 if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[0], 0)) < 0)
988 if ((sbr->data[0].bs_add_harmonic_flag = get_bits1(gb)))
989 get_bits1_vector(gb, sbr->data[0].bs_add_harmonic, sbr->n[1]);
995 SpectralBandReplication *sbr,
1003 if ((sbr->bs_coupling = get_bits1(gb))) {
1004 if (read_sbr_grid(ac, sbr, gb, &sbr->data[0]))
1006 copy_sbr_grid(&sbr->data[1], &sbr->data[0]);
1007 read_sbr_dtdf(sbr, gb, &sbr->data[0]);
1008 read_sbr_dtdf(sbr, gb, &sbr->data[1]);
1009 read_sbr_invf(sbr, gb, &sbr->data[0]);
1010 memcpy(sbr->data[1].bs_invf_mode[1], sbr->data[1].bs_invf_mode[0], sizeof(sbr->data[1].bs_invf_mode[0]));
1011 memcpy(sbr->data[1].bs_invf_mode[0], sbr->data[0].bs_invf_mode[0], sizeof(sbr->data[1].bs_invf_mode[0]));
1012 if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[0], 0)) < 0)
1014 if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[0], 0)) < 0)
1016 if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[1], 1)) < 0)
1018 if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[1], 1)) < 0)
1021 if (read_sbr_grid(ac, sbr, gb, &sbr->data[0]) ||
1022 read_sbr_grid(ac, sbr, gb, &sbr->data[1]))
1024 read_sbr_dtdf(sbr, gb, &sbr->data[0]);
1025 read_sbr_dtdf(sbr, gb, &sbr->data[1]);
1026 read_sbr_invf(sbr, gb, &sbr->data[0]);
1027 read_sbr_invf(sbr, gb, &sbr->data[1]);
1028 if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[0], 0)) < 0)
1030 if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[1], 1)) < 0)
1032 if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[0], 0)) < 0)
1034 if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[1], 1)) < 0)
1038 if ((sbr->data[0].bs_add_harmonic_flag = get_bits1(gb)))
1039 get_bits1_vector(gb, sbr->data[0].bs_add_harmonic, sbr->n[1]);
1040 if ((sbr->data[1].bs_add_harmonic_flag = get_bits1(gb)))
1041 get_bits1_vector(gb, sbr->data[1].bs_add_harmonic, sbr->n[1]);
1046 static unsigned int read_sbr_data(AACContext *ac, SpectralBandReplication *sbr,
1051 sbr->id_aac = id_aac;
1052 sbr->ready_for_dequant = 1;
1055 if (read_sbr_single_channel_element(ac, sbr, gb)) {
1056 sbr_turnoff(sbr);
1060 if (read_sbr_channel_pair_element(ac, sbr, gb)) {
1061 sbr_turnoff(sbr);
1067 sbr_turnoff(sbr);
1078 read_sbr_extension(ac, sbr, gb, get_bits(gb, 2), &num_bits_left); // bs_extension_id
1090 static void sbr_reset(AACContext *ac, SpectralBandReplication *sbr)
1093 err = sbr_make_f_master(ac, sbr, &sbr->spectrum_params);
1095 err = sbr_make_f_derived(ac, sbr);
1099 sbr_turnoff(sbr);
1111 int AAC_RENAME(ff_decode_sbr_extension)(AACContext *ac, SpectralBandReplication *sbr,
1119 sbr->reset = 0;
1121 if (!sbr->sample_rate)
1122 sbr->sample_rate = 2 * ac->oc[1].m4ac.sample_rate; //TODO use the nominal sample rate for arbitrary sample rate support
1132 sbr->kx[0] = sbr->kx[1];
1133 sbr->m[0] = sbr->m[1];
1134 sbr->kx_and_m_pushed = 1;
1138 num_sbr_bits += read_sbr_header(sbr, gb);
1140 if (sbr->reset)
1141 sbr_reset(ac, sbr);
1143 if (sbr->start)
1144 num_sbr_bits += read_sbr_data(ac, sbr, gb, id_aac);
1152 sbr_turnoff(sbr);
1262 static int sbr_lf_gen(AACContext *ac, SpectralBandReplication *sbr,
1270 for (k = 0; k < sbr->kx[1]; k++) {
1277 for (k = 0; k < sbr->kx[0]; k++) {
1287 static int sbr_hf_gen(AACContext *ac, SpectralBandReplication *sbr,
1295 int k = sbr->kx[1];
1296 for (j = 0; j < sbr->num_patches; j++) {
1297 for (x = 0; x < sbr->patch_num_subbands[j]; x++, k++) {
1298 const int p = sbr->patch_start_subband[j] + x;
1299 while (g <= sbr->n_q && k >= sbr->f_tablenoise[g])
1309 sbr->dsp.hf_gen(X_high[k] + ENVELOPE_ADJUSTMENT_OFFSET,
1315 if (k < sbr->m[1] + sbr->kx[1])
1316 memset(X_high + k, 0, (sbr->m[1] + sbr->kx[1] - k) * sizeof(*X_high));
1322 static int sbr_x_gen(SpectralBandReplication *sbr, INTFLOAT X[2][38][64],
1328 const int i_Temp = FFMAX(2*sbr->data[ch].t_env_num_env_old - i_f, 0);
1330 for (k = 0; k < sbr->kx[0]; k++) {
1336 for (; k < sbr->kx[0] + sbr->m[0]; k++) {
1343 for (k = 0; k < sbr->kx[1]; k++) {
1349 for (; k < sbr->kx[1] + sbr->m[1]; k++) {
1361 static int sbr_mapping(AACContext *ac, SpectralBandReplication *sbr,
1368 const unsigned int ilim = sbr->n[ch_data->bs_freq_res[e + 1]];
1369 uint16_t *table = ch_data->bs_freq_res[e + 1] ? sbr->f_tablehigh : sbr->f_tablelow;
1372 if (sbr->kx[1] != table[0]) {
1375 sbr_turnoff(sbr);
1380 sbr->e_origmapped[e][m - sbr->kx[1]] = ch_data->env_facs[e+1][i];
1384 for (i = 0; i < sbr->n_q; i++)
1385 for (m = sbr->f_tablenoise[i]; m < sbr->f_tablenoise[i + 1]; m++)
1386 sbr->q_mapped[e][m - sbr->kx[1]] = ch_data->noise_facs[k+1][i];
1388 for (i = 0; i < sbr->n[1]; i++) {
1391 (sbr->f_tablehigh[i] + sbr->f_tablehigh[i + 1]) >> 1;
1393 ch_data->s_indexmapped[e + 1][m_midpoint - sbr->kx[1]] = ch_data->bs_add_harmonic[i] *
1394 (e >= e_a[1] || (ch_data->s_indexmapped[0][m_midpoint - sbr->kx[1]] == 1));
1401 if (ch_data->s_indexmapped[e + 1][m - sbr->kx[1]]) {
1406 memset(&sbr->s_mapped[e][table[i] - sbr->kx[1]], additional_sinusoid_present,
1407 (table[i + 1] - table[i]) * sizeof(sbr->s_mapped[e][0]));
1417 SpectralBandReplication *sbr, SBRData *ch_data)
1420 int kx1 = sbr->kx[1];
1422 if (sbr->bs_interpol_freq) {
1432 for (m = 0; m < sbr->m[1]; m++) {
1433 AAC_FLOAT sum = sbr->dsp.sum_square(X_high[m+kx1] + ilb, iub - ilb);
1448 const uint16_t *table = ch_data->bs_freq_res[e + 1] ? sbr->f_tablehigh : sbr->f_tablelow;
1450 for (p = 0; p < sbr->n[ch_data->bs_freq_res[e + 1]]; p++) {
1455 sum = av_add_sf(sum, sbr->dsp.sum_square(X_high[k] + ilb, iub - ilb));
1463 sum += sbr->dsp.sum_square(X_high[k] + ilb, iub - ilb);
1475 void AAC_RENAME(ff_sbr_apply)(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
1478 int downsampled = ac->oc[1].m4ac.ext_sample_rate < sbr->sample_rate;
1483 if (id_aac != sbr->id_aac) {
1485 "element type mismatch %d != %d\n", id_aac, sbr->id_aac);
1486 sbr_turnoff(sbr);
1489 if (sbr->start && !sbr->ready_for_dequant) {
1492 sbr_turnoff(sbr);
1495 if (!sbr->kx_and_m_pushed) {
1496 sbr->kx[0] = sbr->kx[1];
1497 sbr->m[0] = sbr->m[1];
1499 sbr->kx_and_m_pushed = 0;
1502 if (sbr->start) {
1503 sbr_dequant(sbr, id_aac);
1504 sbr->ready_for_dequant = 0;
1508 sbr_qmf_analysis(ac->fdsp, &sbr->mdct_ana, &sbr->dsp, ch ? R : L, sbr->data[ch].analysis_filterbank_samples,
1509 (INTFLOAT*)sbr->qmf_filter_scratch,
1510 sbr->data[ch].W, sbr->data[ch].Ypos);
1511 sbr->c.sbr_lf_gen(ac, sbr, sbr->X_low,
1512 (const INTFLOAT (*)[32][32][2]) sbr->data[ch].W,
1513 sbr->data[ch].Ypos);
1514 sbr->data[ch].Ypos ^= 1;
1515 if (sbr->start) {
1516 sbr->c.sbr_hf_inverse_filter(&sbr->dsp, sbr->alpha0, sbr->alpha1,
1517 (const INTFLOAT (*)[40][2]) sbr->X_low, sbr->k[0]);
1518 sbr_chirp(sbr, &sbr->data[ch]);
1519 av_assert0(sbr->data[ch].bs_num_env > 0);
1520 sbr_hf_gen(ac, sbr, sbr->X_high,
1521 (const INTFLOAT (*)[40][2]) sbr->X_low,
1522 (const INTFLOAT (*)[2]) sbr->alpha0,
1523 (const INTFLOAT (*)[2]) sbr->alpha1,
1524 sbr->data[ch].bw_array, sbr->data[ch].t_env,
1525 sbr->data[ch].bs_num_env);
1528 err = sbr_mapping(ac, sbr, &sbr->data[ch], sbr->data[ch].e_a);
1530 sbr_env_estimate(sbr->e_curr, sbr->X_high, sbr, &sbr->data[ch]);
1531 sbr_gain_calc(ac, sbr, &sbr->data[ch], sbr->data[ch].e_a);
1532 sbr->c.sbr_hf_assemble(sbr->data[ch].Y[sbr->data[ch].Ypos],
1533 (const INTFLOAT (*)[40][2]) sbr->X_high,
1534 sbr, &sbr->data[ch],
1535 sbr->data[ch].e_a);
1540 sbr->c.sbr_x_gen(sbr, sbr->X[ch],
1541 (const INTFLOAT (*)[64][2]) sbr->data[ch].Y[1-sbr->data[ch].Ypos],
1542 (const INTFLOAT (*)[64][2]) sbr->data[ch].Y[ sbr->data[ch].Ypos],
1543 (const INTFLOAT (*)[40][2]) sbr->X_low, ch);
1547 if (sbr->ps.common.start) {
1548 AAC_RENAME(ff_ps_apply)(ac->avctx, &sbr->ps, sbr->X[0], sbr->X[1], sbr->kx[1] + sbr->m[1]);
1550 memcpy(sbr->X[1], sbr->X[0], sizeof(sbr->X[0]));
1555 sbr_qmf_synthesis(&sbr->mdct, &sbr->dsp, ac->fdsp,
1556 L, sbr->X[0], sbr->qmf_filter_scratch,
1557 sbr->data[0].synthesis_filterbank_samples,
1558 &sbr->data[0].synthesis_filterbank_samples_offset,
1561 sbr_qmf_synthesis(&sbr->mdct, &sbr->dsp, ac->fdsp,
1562 R, sbr->X[1], sbr->qmf_filter_scratch,
1563 sbr->data[1].synthesis_filterbank_samples,
1564 &sbr->data[1].synthesis_filterbank_samples_offset,