diff options
Diffstat (limited to 'drivers/speex/sb_celp.c')
| -rw-r--r-- | drivers/speex/sb_celp.c | 1488 |
1 files changed, 0 insertions, 1488 deletions
diff --git a/drivers/speex/sb_celp.c b/drivers/speex/sb_celp.c deleted file mode 100644 index fe8bfca72a..0000000000 --- a/drivers/speex/sb_celp.c +++ /dev/null @@ -1,1488 +0,0 @@ -/* Copyright (C) 2002-2006 Jean-Marc Valin - File: sb_celp.c - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - - Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - - Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - - Neither the name of the Xiph.org Foundation nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - - -#include "config.h" - - -#include <math.h> -#include "sb_celp.h" -#include "filters.h" -#include "lpc.h" -#include "lsp.h" -#include "stack_alloc.h" -#include "cb_search.h" -#include "quant_lsp.h" -#include "vq.h" -#include "ltp.h" -#include "arch.h" -#include "math_approx.h" -#include "os_support.h" - -#ifndef NULL -#define NULL 0 -#endif - -/* Default size for the encoder and decoder stack (can be changed at compile time). - This does not apply when using variable-size arrays or alloca. */ -#ifndef SB_ENC_STACK -#define SB_ENC_STACK (10000*sizeof(spx_sig_t)) -#endif - -#ifndef SB_DEC_STACK -#define SB_DEC_STACK (6000*sizeof(spx_sig_t)) -#endif - - -#ifdef DISABLE_WIDEBAND -void *sb_encoder_init(const SpeexMode *m) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); - return NULL; -} -void sb_encoder_destroy(void *state) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); -} -int sb_encode(void *state, void *vin, SpeexBits *bits) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); - return -2; -} -void *sb_decoder_init(const SpeexMode *m) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); - return NULL; -} -void sb_decoder_destroy(void *state) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); -} -int sb_decode(void *state, SpeexBits *bits, void *vout) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); - return -2; -} -int sb_encoder_ctl(void *state, int request, void *ptr) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); - return -2; -} -int sb_decoder_ctl(void *state, int request, void *ptr) -{ - speex_fatal("Wideband and Ultra-wideband are disabled"); - return -2; -} -#else - - -#ifndef M_PI -#define M_PI 3.14159265358979323846 /* pi */ -#endif - -#define sqr(x) ((x)*(x)) - -#define SUBMODE(x) st->submodes[st->submodeID]->x - -#ifdef FIXED_POINT -static const spx_word16_t gc_quant_bound[16] = {125, 164, 215, 282, 370, 484, 635, 832, 1090, 1428, 1871, 2452, 3213, 4210, 5516, 7228}; -static const spx_word16_t fold_quant_bound[32] = { - 39, 44, 50, 57, 64, 73, 83, 94, - 106, 120, 136, 154, 175, 198, 225, 255, - 288, 327, 370, 420, 476, 539, 611, 692, - 784, 889, 1007, 1141, 1293, 1465, 1660, 1881}; -#define LSP_MARGIN 410 -#define LSP_DELTA1 6553 -#define LSP_DELTA2 1638 - -#else - -static const spx_word16_t gc_quant_bound[16] = { - 0.97979, 1.28384, 1.68223, 2.20426, 2.88829, 3.78458, 4.95900, 6.49787, - 8.51428, 11.15642, 14.61846, 19.15484, 25.09895, 32.88761, 43.09325, 56.46588}; -static const spx_word16_t fold_quant_bound[32] = { - 0.30498, 0.34559, 0.39161, 0.44375, 0.50283, 0.56979, 0.64565, 0.73162, - 0.82903, 0.93942, 1.06450, 1.20624, 1.36685, 1.54884, 1.75506, 1.98875, - 2.25355, 2.55360, 2.89361, 3.27889, 3.71547, 4.21018, 4.77076, 5.40598, - 6.12577, 6.94141, 7.86565, 8.91295, 10.09969, 11.44445, 12.96826, 14.69497}; - -#define LSP_MARGIN .05 -#define LSP_DELTA1 .2 -#define LSP_DELTA2 .05 - -#endif - -#define QMF_ORDER 64 - -#ifdef FIXED_POINT -static const spx_word16_t h0[64] = {2, -7, -7, 18, 15, -39, -25, 75, 35, -130, -41, 212, 38, -327, -17, 483, -32, -689, 124, 956, -283, -1307, 543, 1780, -973, -2467, 1733, 3633, -3339, -6409, 9059, 30153, 30153, 9059, -6409, -3339, 3633, 1733, -2467, -973, 1780, 543, -1307, -283, 956, 124, -689, -32, 483, -17, -327, 38, 212, -41, -130, 35, 75, -25, -39, 15, 18, -7, -7, 2}; - -#else -static const float h0[64] = { - 3.596189e-05f, -0.0001123515f, - -0.0001104587f, 0.0002790277f, - 0.0002298438f, -0.0005953563f, - -0.0003823631f, 0.00113826f, - 0.0005308539f, -0.001986177f, - -0.0006243724f, 0.003235877f, - 0.0005743159f, -0.004989147f, - -0.0002584767f, 0.007367171f, - -0.0004857935f, -0.01050689f, - 0.001894714f, 0.01459396f, - -0.004313674f, -0.01994365f, - 0.00828756f, 0.02716055f, - -0.01485397f, -0.03764973f, - 0.026447f, 0.05543245f, - -0.05095487f, -0.09779096f, - 0.1382363f, 0.4600981f, - 0.4600981f, 0.1382363f, - -0.09779096f, -0.05095487f, - 0.05543245f, 0.026447f, - -0.03764973f, -0.01485397f, - 0.02716055f, 0.00828756f, - -0.01994365f, -0.004313674f, - 0.01459396f, 0.001894714f, - -0.01050689f, -0.0004857935f, - 0.007367171f, -0.0002584767f, - -0.004989147f, 0.0005743159f, - 0.003235877f, -0.0006243724f, - -0.001986177f, 0.0005308539f, - 0.00113826f, -0.0003823631f, - -0.0005953563f, 0.0002298438f, - 0.0002790277f, -0.0001104587f, - -0.0001123515f, 3.596189e-05f -}; - -#endif - -extern const spx_word16_t lag_window[]; -extern const spx_word16_t lpc_window[]; - - -void *sb_encoder_init(const SpeexMode *m) -{ - int i; - spx_int32_t tmp; - SBEncState *st; - const SpeexSBMode *mode; - - st = (SBEncState*)speex_alloc(sizeof(SBEncState)); - if (!st) - return NULL; - st->mode = m; - mode = (const SpeexSBMode*)m->mode; - - - st->st_low = speex_encoder_init(mode->nb_mode); -#if defined(VAR_ARRAYS) || defined (USE_ALLOCA) - st->stack = NULL; -#else - /*st->stack = (char*)speex_alloc_scratch(SB_ENC_STACK);*/ - speex_encoder_ctl(st->st_low, SPEEX_GET_STACK, &st->stack); -#endif - - st->full_frame_size = 2*mode->frameSize; - st->frame_size = mode->frameSize; - st->subframeSize = mode->subframeSize; - st->nbSubframes = mode->frameSize/mode->subframeSize; - st->windowSize = st->frame_size+st->subframeSize; - st->lpcSize=mode->lpcSize; - - st->encode_submode = 1; - st->submodes=mode->submodes; - st->submodeSelect = st->submodeID=mode->defaultSubmode; - - tmp=9; - speex_encoder_ctl(st->st_low, SPEEX_SET_QUALITY, &tmp); - tmp=1; - speex_encoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, &tmp); - - st->lpc_floor = mode->lpc_floor; - st->gamma1=mode->gamma1; - st->gamma2=mode->gamma2; - st->first=1; - - st->high=(spx_word16_t*)speex_alloc((st->windowSize-st->frame_size)*sizeof(spx_word16_t)); - - st->h0_mem=(spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); - st->h1_mem=(spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); - - st->window= lpc_window; - - st->lagWindow = lag_window; - - st->old_lsp = (spx_lsp_t*)speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); - st->old_qlsp = (spx_lsp_t*)speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); - st->interp_qlpc = (spx_coef_t*)speex_alloc(st->lpcSize*sizeof(spx_coef_t)); - st->pi_gain = (spx_word32_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word32_t)); - st->exc_rms = (spx_word16_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word16_t)); - st->innov_rms_save = NULL; - - st->mem_sp = (spx_mem_t*)speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); - st->mem_sp2 = (spx_mem_t*)speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); - st->mem_sw = (spx_mem_t*)speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); - - for (i=0;i<st->lpcSize;i++) - st->old_lsp[i]= DIV32(MULT16_16(QCONST16(3.1415927f, LSP_SHIFT), i+1), st->lpcSize+1); - -#ifndef DISABLE_VBR - st->vbr_quality = 8; - st->vbr_enabled = 0; - st->vbr_max = 0; - st->vbr_max_high = 20000; /* We just need a big value here */ - st->vad_enabled = 0; - st->abr_enabled = 0; - st->relative_quality=0; -#endif /* #ifndef DISABLE_VBR */ - - st->complexity=2; - speex_encoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); - st->sampling_rate*=2; -#ifdef ENABLE_VALGRIND - VALGRIND_MAKE_READABLE(st, (st->stack-(char*)st)); -#endif - return st; -} - -void sb_encoder_destroy(void *state) -{ - SBEncState *st=(SBEncState*)state; - - speex_encoder_destroy(st->st_low); -#if !(defined(VAR_ARRAYS) || defined (USE_ALLOCA)) - /*speex_free_scratch(st->stack);*/ -#endif - - speex_free(st->high); - - speex_free(st->h0_mem); - speex_free(st->h1_mem); - - speex_free(st->old_lsp); - speex_free(st->old_qlsp); - speex_free(st->interp_qlpc); - speex_free(st->pi_gain); - speex_free(st->exc_rms); - - speex_free(st->mem_sp); - speex_free(st->mem_sp2); - speex_free(st->mem_sw); - - - speex_free(st); -} - - -int sb_encode(void *state, void *vin, SpeexBits *bits) -{ - SBEncState *st; - int i, roots, sub; - char *stack; - VARDECL(spx_mem_t *mem); - VARDECL(spx_sig_t *innov); - VARDECL(spx_word16_t *target); - VARDECL(spx_word16_t *syn_resp); - VARDECL(spx_word32_t *low_pi_gain); - spx_word16_t *low; - spx_word16_t *high; - VARDECL(spx_word16_t *low_exc_rms); - VARDECL(spx_word16_t *low_innov_rms); - const SpeexSBMode *mode; - spx_int32_t dtx; - spx_word16_t *in = (spx_word16_t*)vin; - spx_word16_t e_low=0, e_high=0; - VARDECL(spx_coef_t *lpc); - VARDECL(spx_coef_t *interp_lpc); - VARDECL(spx_coef_t *bw_lpc1); - VARDECL(spx_coef_t *bw_lpc2); - VARDECL(spx_lsp_t *lsp); - VARDECL(spx_lsp_t *qlsp); - VARDECL(spx_lsp_t *interp_lsp); - VARDECL(spx_lsp_t *interp_qlsp); - - st = (SBEncState*)state; - stack=st->stack; - mode = (const SpeexSBMode*)(st->mode->mode); - low = in; - high = in+st->frame_size; - - /* High-band buffering / sync with low band */ - /* Compute the two sub-bands by filtering with QMF h0*/ - qmf_decomp(in, h0, low, high, st->full_frame_size, QMF_ORDER, st->h0_mem, stack); - -#ifndef DISABLE_VBR - if (st->vbr_enabled || st->vad_enabled) - { - /* Need to compute things here before the signal is trashed by the encoder */ - /*FIXME: Are the two signals (low, high) in sync? */ - e_low = compute_rms16(low, st->frame_size); - e_high = compute_rms16(high, st->frame_size); - } -#endif /* #ifndef DISABLE_VBR */ - - ALLOC(low_innov_rms, st->nbSubframes, spx_word16_t); - speex_encoder_ctl(st->st_low, SPEEX_SET_INNOVATION_SAVE, low_innov_rms); - /* Encode the narrowband part*/ - speex_encode_native(st->st_low, low, bits); - - high = high - (st->windowSize-st->frame_size); - SPEEX_COPY(high, st->high, st->windowSize-st->frame_size); - SPEEX_COPY(st->high, &high[st->frame_size], st->windowSize-st->frame_size); - - - ALLOC(low_pi_gain, st->nbSubframes, spx_word32_t); - ALLOC(low_exc_rms, st->nbSubframes, spx_word16_t); - speex_encoder_ctl(st->st_low, SPEEX_GET_PI_GAIN, low_pi_gain); - speex_encoder_ctl(st->st_low, SPEEX_GET_EXC, low_exc_rms); - - speex_encoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, &dtx); - - if (dtx==0) - dtx=1; - else - dtx=0; - - ALLOC(lpc, st->lpcSize, spx_coef_t); - ALLOC(interp_lpc, st->lpcSize, spx_coef_t); - ALLOC(bw_lpc1, st->lpcSize, spx_coef_t); - ALLOC(bw_lpc2, st->lpcSize, spx_coef_t); - - ALLOC(lsp, st->lpcSize, spx_lsp_t); - ALLOC(qlsp, st->lpcSize, spx_lsp_t); - ALLOC(interp_lsp, st->lpcSize, spx_lsp_t); - ALLOC(interp_qlsp, st->lpcSize, spx_lsp_t); - - { - VARDECL(spx_word16_t *autocorr); - VARDECL(spx_word16_t *w_sig); - ALLOC(autocorr, st->lpcSize+1, spx_word16_t); - ALLOC(w_sig, st->windowSize, spx_word16_t); - /* Window for analysis */ - /* FIXME: This is a kludge */ - if (st->subframeSize==80) - { - for (i=0;i<st->windowSize;i++) - w_sig[i] = EXTRACT16(SHR32(MULT16_16(high[i],st->window[i>>1]),SIG_SHIFT)); - } else { - for (i=0;i<st->windowSize;i++) - w_sig[i] = EXTRACT16(SHR32(MULT16_16(high[i],st->window[i]),SIG_SHIFT)); - } - /* Compute auto-correlation */ - _spx_autocorr(w_sig, autocorr, st->lpcSize+1, st->windowSize); - autocorr[0] = ADD16(autocorr[0],MULT16_16_Q15(autocorr[0],st->lpc_floor)); /* Noise floor in auto-correlation domain */ - - /* Lag windowing: equivalent to filtering in the power-spectrum domain */ - for (i=0;i<st->lpcSize+1;i++) - autocorr[i] = MULT16_16_Q14(autocorr[i],st->lagWindow[i]); - - /* Levinson-Durbin */ - _spx_lpc(lpc, autocorr, st->lpcSize); - } - - /* LPC to LSPs (x-domain) transform */ - roots=lpc_to_lsp (lpc, st->lpcSize, lsp, 10, LSP_DELTA1, stack); - if (roots!=st->lpcSize) - { - roots = lpc_to_lsp (lpc, st->lpcSize, lsp, 10, LSP_DELTA2, stack); - if (roots!=st->lpcSize) { - /*If we can't find all LSP's, do some damage control and use a flat filter*/ - for (i=0;i<st->lpcSize;i++) - { - lsp[i]=st->old_lsp[i]; - } - } - } - -#ifndef DISABLE_VBR - /* VBR code */ - if ((st->vbr_enabled || st->vad_enabled) && !dtx) - { - float ratio; - if (st->abr_enabled) - { - float qual_change=0; - if (st->abr_drift2 * st->abr_drift > 0) - { - /* Only adapt if long-term and short-term drift are the same sign */ - qual_change = -.00001*st->abr_drift/(1+st->abr_count); - if (qual_change>.1) - qual_change=.1; - if (qual_change<-.1) - qual_change=-.1; - } - st->vbr_quality += qual_change; - if (st->vbr_quality>10) - st->vbr_quality=10; - if (st->vbr_quality<0) - st->vbr_quality=0; - } - - - ratio = 2*log((1.f+e_high)/(1.f+e_low)); - - speex_encoder_ctl(st->st_low, SPEEX_GET_RELATIVE_QUALITY, &st->relative_quality); - if (ratio<-4) - ratio=-4; - if (ratio>2) - ratio=2; - /*if (ratio>-2)*/ - if (st->vbr_enabled) - { - spx_int32_t modeid; - modeid = mode->nb_modes-1; - st->relative_quality+=1.0*(ratio+2); - if (st->relative_quality<-1) - st->relative_quality=-1; - while (modeid) - { - int v1; - float thresh; - v1=(int)floor(st->vbr_quality); - if (v1==10) - thresh = mode->vbr_thresh[modeid][v1]; - else - thresh = (st->vbr_quality-v1) * mode->vbr_thresh[modeid][v1+1] + - (1+v1-st->vbr_quality) * mode->vbr_thresh[modeid][v1]; - if (st->relative_quality >= thresh && st->sampling_rate*st->submodes[modeid]->bits_per_frame/st->full_frame_size <= st->vbr_max_high) - break; - modeid--; - } - speex_encoder_ctl(state, SPEEX_SET_HIGH_MODE, &modeid); - if (st->abr_enabled) - { - spx_int32_t bitrate; - speex_encoder_ctl(state, SPEEX_GET_BITRATE, &bitrate); - st->abr_drift+=(bitrate-st->abr_enabled); - st->abr_drift2 = .95*st->abr_drift2 + .05*(bitrate-st->abr_enabled); - st->abr_count += 1.0; - } - - } else { - /* VAD only */ - int modeid; - if (st->relative_quality<2.0) - modeid=1; - else - modeid=st->submodeSelect; - /*speex_encoder_ctl(state, SPEEX_SET_MODE, &mode);*/ - st->submodeID=modeid; - - } - /*fprintf (stderr, "%f %f\n", ratio, low_qual);*/ - } -#endif /* #ifndef DISABLE_VBR */ - - if (st->encode_submode) - { - speex_bits_pack(bits, 1, 1); - if (dtx) - speex_bits_pack(bits, 0, SB_SUBMODE_BITS); - else - speex_bits_pack(bits, st->submodeID, SB_SUBMODE_BITS); - } - - /* If null mode (no transmission), just set a couple things to zero*/ - if (dtx || st->submodes[st->submodeID] == NULL) - { - for (i=0;i<st->frame_size;i++) - high[i]=VERY_SMALL; - - for (i=0;i<st->lpcSize;i++) - st->mem_sw[i]=0; - st->first=1; - - /* Final signal synthesis from excitation */ - iir_mem16(high, st->interp_qlpc, high, st->frame_size, st->lpcSize, st->mem_sp, stack); - - if (dtx) - return 0; - else - return 1; - } - - - /* LSP quantization */ - SUBMODE(lsp_quant)(lsp, qlsp, st->lpcSize, bits); - - if (st->first) - { - for (i=0;i<st->lpcSize;i++) - st->old_lsp[i] = lsp[i]; - for (i=0;i<st->lpcSize;i++) - st->old_qlsp[i] = qlsp[i]; - } - - ALLOC(mem, st->lpcSize, spx_mem_t); - ALLOC(syn_resp, st->subframeSize, spx_word16_t); - ALLOC(innov, st->subframeSize, spx_sig_t); - ALLOC(target, st->subframeSize, spx_word16_t); - - for (sub=0;sub<st->nbSubframes;sub++) - { - VARDECL(spx_word16_t *exc); - VARDECL(spx_word16_t *res); - VARDECL(spx_word16_t *sw); - spx_word16_t *sp; - spx_word16_t filter_ratio; /*Q7*/ - int offset; - spx_word32_t rl, rh; /*Q13*/ - spx_word16_t eh=0; - - offset = st->subframeSize*sub; - sp=high+offset; - ALLOC(exc, st->subframeSize, spx_word16_t); - ALLOC(res, st->subframeSize, spx_word16_t); - ALLOC(sw, st->subframeSize, spx_word16_t); - - /* LSP interpolation (quantized and unquantized) */ - lsp_interpolate(st->old_lsp, lsp, interp_lsp, st->lpcSize, sub, st->nbSubframes); - lsp_interpolate(st->old_qlsp, qlsp, interp_qlsp, st->lpcSize, sub, st->nbSubframes); - - lsp_enforce_margin(interp_lsp, st->lpcSize, LSP_MARGIN); - lsp_enforce_margin(interp_qlsp, st->lpcSize, LSP_MARGIN); - - lsp_to_lpc(interp_lsp, interp_lpc, st->lpcSize,stack); - lsp_to_lpc(interp_qlsp, st->interp_qlpc, st->lpcSize, stack); - - bw_lpc(st->gamma1, interp_lpc, bw_lpc1, st->lpcSize); - bw_lpc(st->gamma2, interp_lpc, bw_lpc2, st->lpcSize); - - /* Compute mid-band (4000 Hz for wideband) response of low-band and high-band - filters */ - st->pi_gain[sub]=LPC_SCALING; - rh = LPC_SCALING; - for (i=0;i<st->lpcSize;i+=2) - { - rh += st->interp_qlpc[i+1] - st->interp_qlpc[i]; - st->pi_gain[sub] += st->interp_qlpc[i] + st->interp_qlpc[i+1]; - } - - rl = low_pi_gain[sub]; -#ifdef FIXED_POINT - filter_ratio=EXTRACT16(SATURATE(PDIV32(SHL32(ADD32(rl,82),7),ADD32(82,rh)),32767)); -#else - filter_ratio=(rl+.01)/(rh+.01); -#endif - - /* Compute "real excitation" */ - fir_mem16(sp, st->interp_qlpc, exc, st->subframeSize, st->lpcSize, st->mem_sp2, stack); - /* Compute energy of low-band and high-band excitation */ - - eh = compute_rms16(exc, st->subframeSize); - - if (!SUBMODE(innovation_quant)) {/* 1 for spectral folding excitation, 0 for stochastic */ - spx_word32_t g; /*Q7*/ - spx_word16_t el; /*Q0*/ - el = low_innov_rms[sub]; - - /* Gain to use if we want to use the low-band excitation for high-band */ - g=PDIV32(MULT16_16(filter_ratio,eh),EXTEND32(ADD16(1,el))); - -#if 0 - { - char *tmp_stack=stack; - float *tmp_sig; - float g2; - ALLOC(tmp_sig, st->subframeSize, spx_sig_t); - for (i=0;i<st->lpcSize;i++) - mem[i]=st->mem_sp[i]; - iir_mem2(st->low_innov+offset, st->interp_qlpc, tmp_sig, st->subframeSize, st->lpcSize, mem); - g2 = compute_rms(sp, st->subframeSize)/(.01+compute_rms(tmp_sig, st->subframeSize)); - /*fprintf (stderr, "gains: %f %f\n", g, g2);*/ - g = g2; - stack = tmp_stack; - } -#endif - - /*print_vec(&g, 1, "gain factor");*/ - /* Gain quantization */ - { - int quant = scal_quant(g, fold_quant_bound, 32); - /*speex_warning_int("tata", quant);*/ - if (quant<0) - quant=0; - if (quant>31) - quant=31; - speex_bits_pack(bits, quant, 5); - } - if (st->innov_rms_save) - { - st->innov_rms_save[sub] = eh; - } - st->exc_rms[sub] = eh; - } else { - spx_word16_t gc; /*Q7*/ - spx_word32_t scale; /*Q14*/ - spx_word16_t el; /*Q0*/ - el = low_exc_rms[sub]; /*Q0*/ - - gc = PDIV32_16(MULT16_16(filter_ratio,1+eh),1+el); - - /* This is a kludge that cleans up a historical bug */ - if (st->subframeSize==80) - gc = MULT16_16_P15(QCONST16(0.70711f,15),gc); - /*printf ("%f %f %f %f\n", el, eh, filter_ratio, gc);*/ - { - int qgc = scal_quant(gc, gc_quant_bound, 16); - speex_bits_pack(bits, qgc, 4); - gc = MULT16_16_Q15(QCONST16(0.87360,15),gc_quant_bound[qgc]); - } - if (st->subframeSize==80) - gc = MULT16_16_P14(QCONST16(1.4142f,14), gc); - - scale = SHL32(MULT16_16(PDIV32_16(SHL32(EXTEND32(gc),SIG_SHIFT-6),filter_ratio),(1+el)),6); - - compute_impulse_response(st->interp_qlpc, bw_lpc1, bw_lpc2, syn_resp, st->subframeSize, st->lpcSize, stack); - - - /* Reset excitation */ - for (i=0;i<st->subframeSize;i++) - res[i]=VERY_SMALL; - - /* Compute zero response (ringing) of A(z/g1) / ( A(z/g2) * Aq(z) ) */ - for (i=0;i<st->lpcSize;i++) - mem[i]=st->mem_sp[i]; - iir_mem16(res, st->interp_qlpc, res, st->subframeSize, st->lpcSize, mem, stack); - - for (i=0;i<st->lpcSize;i++) - mem[i]=st->mem_sw[i]; - filter_mem16(res, bw_lpc1, bw_lpc2, res, st->subframeSize, st->lpcSize, mem, stack); - - /* Compute weighted signal */ - for (i=0;i<st->lpcSize;i++) - mem[i]=st->mem_sw[i]; - filter_mem16(sp, bw_lpc1, bw_lpc2, sw, st->subframeSize, st->lpcSize, mem, stack); - - /* Compute target signal */ - for (i=0;i<st->subframeSize;i++) - target[i]=SUB16(sw[i],res[i]); - - signal_div(target, target, scale, st->subframeSize); - - /* Reset excitation */ - SPEEX_MEMSET(innov, 0, st->subframeSize); - - /*print_vec(target, st->subframeSize, "\ntarget");*/ - SUBMODE(innovation_quant)(target, st->interp_qlpc, bw_lpc1, bw_lpc2, - SUBMODE(innovation_params), st->lpcSize, st->subframeSize, - innov, syn_resp, bits, stack, st->complexity, SUBMODE(double_codebook)); - /*print_vec(target, st->subframeSize, "after");*/ - - signal_mul(innov, innov, scale, st->subframeSize); - - if (SUBMODE(double_codebook)) { - char *tmp_stack=stack; - VARDECL(spx_sig_t *innov2); - ALLOC(innov2, st->subframeSize, spx_sig_t); - SPEEX_MEMSET(innov2, 0, st->subframeSize); - for (i=0;i<st->subframeSize;i++) - target[i]=MULT16_16_P13(QCONST16(2.5f,13), target[i]); - - SUBMODE(innovation_quant)(target, st->interp_qlpc, bw_lpc1, bw_lpc2, - SUBMODE(innovation_params), st->lpcSize, st->subframeSize, - innov2, syn_resp, bits, stack, st->complexity, 0); - signal_mul(innov2, innov2, MULT16_32_P15(QCONST16(0.4f,15),scale), st->subframeSize); - - for (i=0;i<st->subframeSize;i++) - innov[i] = ADD32(innov[i],innov2[i]); - stack = tmp_stack; - } - for (i=0;i<st->subframeSize;i++) - exc[i] = PSHR32(innov[i],SIG_SHIFT); - - if (st->innov_rms_save) - { - st->innov_rms_save[sub] = MULT16_16_Q15(QCONST16(.70711f, 15), compute_rms(innov, st->subframeSize)); - } - st->exc_rms[sub] = compute_rms16(exc, st->subframeSize); - - - } - - - /*Keep the previous memory*/ - for (i=0;i<st->lpcSize;i++) - mem[i]=st->mem_sp[i]; - /* Final signal synthesis from excitation */ - iir_mem16(exc, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, st->mem_sp, stack); - - /* Compute weighted signal again, from synthesized speech (not sure it's the right thing) */ - filter_mem16(sp, bw_lpc1, bw_lpc2, sw, st->subframeSize, st->lpcSize, st->mem_sw, stack); - } - - for (i=0;i<st->lpcSize;i++) - st->old_lsp[i] = lsp[i]; - for (i=0;i<st->lpcSize;i++) - st->old_qlsp[i] = qlsp[i]; - - st->first=0; - - return 1; -} - - - - - -void *sb_decoder_init(const SpeexMode *m) -{ - spx_int32_t tmp; - SBDecState *st; - const SpeexSBMode *mode; - st = (SBDecState*)speex_alloc(sizeof(SBDecState)); - if (!st) - return NULL; - st->mode = m; - mode=(const SpeexSBMode*)m->mode; - st->encode_submode = 1; - - st->st_low = speex_decoder_init(mode->nb_mode); -#if defined(VAR_ARRAYS) || defined (USE_ALLOCA) - st->stack = NULL; -#else - /*st->stack = (char*)speex_alloc_scratch(SB_DEC_STACK);*/ - speex_decoder_ctl(st->st_low, SPEEX_GET_STACK, &st->stack); -#endif - - st->full_frame_size = 2*mode->frameSize; - st->frame_size = mode->frameSize; - st->subframeSize = mode->subframeSize; - st->nbSubframes = mode->frameSize/mode->subframeSize; - st->lpcSize=mode->lpcSize; - speex_decoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); - st->sampling_rate*=2; - tmp=1; - speex_decoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, &tmp); - - st->submodes=mode->submodes; - st->submodeID=mode->defaultSubmode; - - st->first=1; - - st->g0_mem = (spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); - st->g1_mem = (spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); - - st->excBuf = (spx_word16_t*)speex_alloc((st->subframeSize)*sizeof(spx_word16_t)); - - st->old_qlsp = (spx_lsp_t*)speex_alloc((st->lpcSize)*sizeof(spx_lsp_t)); - st->interp_qlpc = (spx_coef_t*)speex_alloc(st->lpcSize*sizeof(spx_coef_t)); - - st->pi_gain = (spx_word32_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word32_t)); - st->exc_rms = (spx_word16_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word16_t)); - st->mem_sp = (spx_mem_t*)speex_alloc((2*st->lpcSize)*sizeof(spx_mem_t)); - - st->innov_save = NULL; - - - st->lpc_enh_enabled=0; - st->seed = 1000; - -#ifdef ENABLE_VALGRIND - VALGRIND_MAKE_READABLE(st, (st->stack-(char*)st)); -#endif - return st; -} - -void sb_decoder_destroy(void *state) -{ - SBDecState *st; - st = (SBDecState*)state; - speex_decoder_destroy(st->st_low); -#if !(defined(VAR_ARRAYS) || defined (USE_ALLOCA)) - /*speex_free_scratch(st->stack);*/ -#endif - - speex_free(st->g0_mem); - speex_free(st->g1_mem); - speex_free(st->excBuf); - speex_free(st->old_qlsp); - speex_free(st->interp_qlpc); - speex_free(st->pi_gain); - speex_free(st->exc_rms); - speex_free(st->mem_sp); - - speex_free(state); -} - -static void sb_decode_lost(SBDecState *st, spx_word16_t *out, int dtx, char *stack) -{ - int i; - int saved_modeid=0; - - if (dtx) - { - saved_modeid=st->submodeID; - st->submodeID=1; - } else { - bw_lpc(QCONST16(0.99f,15), st->interp_qlpc, st->interp_qlpc, st->lpcSize); - } - - st->first=1; - - - /* Final signal synthesis from excitation */ - if (!dtx) - { - st->last_ener = MULT16_16_Q15(QCONST16(.9f,15),st->last_ener); - } - for (i=0;i<st->frame_size;i++) - out[i+st->frame_size] = speex_rand(st->last_ener, &st->seed); - - iir_mem16(out+st->frame_size, st->interp_qlpc, out+st->frame_size, st->frame_size, st->lpcSize, - st->mem_sp, stack); - - - /* Reconstruct the original */ - qmf_synth(out, out+st->frame_size, h0, out, st->full_frame_size, QMF_ORDER, st->g0_mem, st->g1_mem, stack); - if (dtx) - { - st->submodeID=saved_modeid; - } - - return; -} - -int sb_decode(void *state, SpeexBits *bits, void *vout) -{ - int i, sub; - SBDecState *st; - int wideband; - int ret; - char *stack; - VARDECL(spx_word32_t *low_pi_gain); - VARDECL(spx_word16_t *low_exc_rms); - VARDECL(spx_coef_t *ak); - VARDECL(spx_lsp_t *qlsp); - VARDECL(spx_lsp_t *interp_qlsp); - spx_int32_t dtx; - const SpeexSBMode *mode; - spx_word16_t *out = (spx_word16_t*)vout; - spx_word16_t *low_innov_alias; - spx_word32_t exc_ener_sum = 0; - - st = (SBDecState*)state; - stack=st->stack; - mode = (const SpeexSBMode*)(st->mode->mode); - - low_innov_alias = out+st->frame_size; - speex_decoder_ctl(st->st_low, SPEEX_SET_INNOVATION_SAVE, low_innov_alias); - /* Decode the low-band */ - ret = speex_decode_native(st->st_low, bits, out); - - speex_decoder_ctl(st->st_low, SPEEX_GET_DTX_STATUS, &dtx); - - /* If error decoding the narrowband part, propagate error */ - if (ret!=0) - { - return ret; - } - - if (!bits) - { - sb_decode_lost(st, out, dtx, stack); - return 0; - } - - if (st->encode_submode) - { - - /*Check "wideband bit"*/ - if (speex_bits_remaining(bits)>0) - wideband = speex_bits_peek(bits); - else - wideband = 0; - if (wideband) - { - /*Regular wideband frame, read the submode*/ - wideband = speex_bits_unpack_unsigned(bits, 1); - st->submodeID = speex_bits_unpack_unsigned(bits, SB_SUBMODE_BITS); - } else - { - /*Was a narrowband frame, set "null submode"*/ - st->submodeID = 0; - } - if (st->submodeID != 0 && st->submodes[st->submodeID] == NULL) - { - speex_notify("Invalid mode encountered. The stream is corrupted."); - return -2; - } - } - - /* If null mode (no transmission), just set a couple things to zero*/ - if (st->submodes[st->submodeID] == NULL) - { - if (dtx) - { - sb_decode_lost(st, out, 1, stack); - return 0; - } - - for (i=0;i<st->frame_size;i++) - out[st->frame_size+i]=VERY_SMALL; - - st->first=1; - - /* Final signal synthesis from excitation */ - iir_mem16(out+st->frame_size, st->interp_qlpc, out+st->frame_size, st->frame_size, st->lpcSize, st->mem_sp, stack); - - qmf_synth(out, out+st->frame_size, h0, out, st->full_frame_size, QMF_ORDER, st->g0_mem, st->g1_mem, stack); - - return 0; - - } - - ALLOC(low_pi_gain, st->nbSubframes, spx_word32_t); - ALLOC(low_exc_rms, st->nbSubframes, spx_word16_t); - speex_decoder_ctl(st->st_low, SPEEX_GET_PI_GAIN, low_pi_gain); - speex_decoder_ctl(st->st_low, SPEEX_GET_EXC, low_exc_rms); - - ALLOC(qlsp, st->lpcSize, spx_lsp_t); - ALLOC(interp_qlsp, st->lpcSize, spx_lsp_t); - SUBMODE(lsp_unquant)(qlsp, st->lpcSize, bits); - - if (st->first) - { - for (i=0;i<st->lpcSize;i++) - st->old_qlsp[i] = qlsp[i]; - } - - ALLOC(ak, st->lpcSize, spx_coef_t); - - for (sub=0;sub<st->nbSubframes;sub++) - { - VARDECL(spx_word32_t *exc); - spx_word16_t *innov_save=NULL; - spx_word16_t *sp; - spx_word16_t filter_ratio; - spx_word16_t el=0; - int offset; - spx_word32_t rl=0,rh=0; - - offset = st->subframeSize*sub; - sp=out+st->frame_size+offset; - ALLOC(exc, st->subframeSize, spx_word32_t); - /* Pointer for saving innovation */ - if (st->innov_save) - { - innov_save = st->innov_save+2*offset; - SPEEX_MEMSET(innov_save, 0, 2*st->subframeSize); - } - - /* LSP interpolation */ - lsp_interpolate(st->old_qlsp, qlsp, interp_qlsp, st->lpcSize, sub, st->nbSubframes); - - lsp_enforce_margin(interp_qlsp, st->lpcSize, LSP_MARGIN); - - /* LSP to LPC */ - lsp_to_lpc(interp_qlsp, ak, st->lpcSize, stack); - - /* Calculate reponse ratio between the low and high filter in the middle - of the band (4000 Hz) */ - - st->pi_gain[sub]=LPC_SCALING; - rh = LPC_SCALING; - for (i=0;i<st->lpcSize;i+=2) - { - rh += ak[i+1] - ak[i]; - st->pi_gain[sub] += ak[i] + ak[i+1]; - } - - rl = low_pi_gain[sub]; -#ifdef FIXED_POINT - filter_ratio=EXTRACT16(SATURATE(PDIV32(SHL32(ADD32(rl,82),7),ADD32(82,rh)),32767)); -#else - filter_ratio=(rl+.01)/(rh+.01); -#endif - - SPEEX_MEMSET(exc, 0, st->subframeSize); - if (!SUBMODE(innovation_unquant)) - { - spx_word32_t g; - int quant; - - quant = speex_bits_unpack_unsigned(bits, 5); - g= spx_exp(MULT16_16(QCONST16(.125f,11),(quant-10))); - - g = PDIV32(g, filter_ratio); - - for (i=0;i<st->subframeSize;i+=2) - { - exc[i]=SHL32(MULT16_32_P15(MULT16_16_Q15(mode->folding_gain,low_innov_alias[offset+i]),SHL32(g,6)),SIG_SHIFT); - exc[i+1]=NEG32(SHL32(MULT16_32_P15(MULT16_16_Q15(mode->folding_gain,low_innov_alias[offset+i+1]),SHL32(g,6)),SIG_SHIFT)); - } - - } else { - spx_word16_t gc; - spx_word32_t scale; - int qgc = speex_bits_unpack_unsigned(bits, 4); - - el = low_exc_rms[sub]; - gc = MULT16_16_Q15(QCONST16(0.87360,15),gc_quant_bound[qgc]); - - if (st->subframeSize==80) - gc = MULT16_16_P14(QCONST16(1.4142f,14),gc); - - scale = SHL32(PDIV32(SHL32(MULT16_16(gc, el),3), filter_ratio),SIG_SHIFT-3); - SUBMODE(innovation_unquant)(exc, SUBMODE(innovation_params), st->subframeSize, - bits, stack, &st->seed); - - signal_mul(exc,exc,scale,st->subframeSize); - - if (SUBMODE(double_codebook)) { - char *tmp_stack=stack; - VARDECL(spx_sig_t *innov2); - ALLOC(innov2, st->subframeSize, spx_sig_t); - SPEEX_MEMSET(innov2, 0, st->subframeSize); - SUBMODE(innovation_unquant)(innov2, SUBMODE(innovation_params), st->subframeSize, - bits, stack, &st->seed); - signal_mul(innov2, innov2, MULT16_32_P15(QCONST16(0.4f,15),scale), st->subframeSize); - for (i=0;i<st->subframeSize;i++) - exc[i] = ADD32(exc[i],innov2[i]); - stack = tmp_stack; - } - - } - - if (st->innov_save) - { - for (i=0;i<st->subframeSize;i++) - innov_save[2*i]=EXTRACT16(PSHR32(exc[i],SIG_SHIFT)); - } - - iir_mem16(st->excBuf, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, - st->mem_sp, stack); - for (i=0;i<st->subframeSize;i++) - st->excBuf[i]=EXTRACT16(PSHR32(exc[i],SIG_SHIFT)); - for (i=0;i<st->lpcSize;i++) - st->interp_qlpc[i] = ak[i]; - st->exc_rms[sub] = compute_rms16(st->excBuf, st->subframeSize); - exc_ener_sum = ADD32(exc_ener_sum, DIV32(MULT16_16(st->exc_rms[sub],st->exc_rms[sub]), st->nbSubframes)); - } - st->last_ener = spx_sqrt(exc_ener_sum); - - qmf_synth(out, out+st->frame_size, h0, out, st->full_frame_size, QMF_ORDER, st->g0_mem, st->g1_mem, stack); - for (i=0;i<st->lpcSize;i++) - st->old_qlsp[i] = qlsp[i]; - - st->first=0; - - return 0; -} - - -int sb_encoder_ctl(void *state, int request, void *ptr) -{ - SBEncState *st; - st=(SBEncState*)state; - switch(request) - { - case SPEEX_GET_FRAME_SIZE: - (*(spx_int32_t*)ptr) = st->full_frame_size; - break; - case SPEEX_SET_HIGH_MODE: - st->submodeSelect = st->submodeID = (*(spx_int32_t*)ptr); - break; - case SPEEX_SET_LOW_MODE: - speex_encoder_ctl(st->st_low, SPEEX_SET_LOW_MODE, ptr); - break; - case SPEEX_SET_DTX: - speex_encoder_ctl(st->st_low, SPEEX_SET_DTX, ptr); - break; - case SPEEX_GET_DTX: - speex_encoder_ctl(st->st_low, SPEEX_GET_DTX, ptr); - break; - case SPEEX_GET_LOW_MODE: - speex_encoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, ptr); - break; - case SPEEX_SET_MODE: - speex_encoder_ctl(st, SPEEX_SET_QUALITY, ptr); - break; -#ifndef DISABLE_VBR - case SPEEX_SET_VBR: - st->vbr_enabled = (*(spx_int32_t*)ptr); - speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, ptr); - break; - case SPEEX_GET_VBR: - (*(spx_int32_t*)ptr) = st->vbr_enabled; - break; - case SPEEX_SET_VAD: - st->vad_enabled = (*(spx_int32_t*)ptr); - speex_encoder_ctl(st->st_low, SPEEX_SET_VAD, ptr); - break; - case SPEEX_GET_VAD: - (*(spx_int32_t*)ptr) = st->vad_enabled; - break; -#endif /* #ifndef DISABLE_VBR */ -#if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API) - case SPEEX_SET_VBR_QUALITY: - { - spx_int32_t q; - float qual = (*(float*)ptr)+.6; - st->vbr_quality = (*(float*)ptr); - if (qual>10) - qual=10; - q=(int)floor(.5+*(float*)ptr); - if (q>10) - q=10; - speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_QUALITY, &qual); - speex_encoder_ctl(state, SPEEX_SET_QUALITY, &q); - break; - } - case SPEEX_GET_VBR_QUALITY: - (*(float*)ptr) = st->vbr_quality; - break; -#endif /* #if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API) */ -#ifndef DISABLE_VBR - case SPEEX_SET_ABR: - st->abr_enabled = (*(spx_int32_t*)ptr); - st->vbr_enabled = st->abr_enabled!=0; - speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, &st->vbr_enabled); - if (st->vbr_enabled) - { - spx_int32_t i=10, rate, target; - float vbr_qual; - target = (*(spx_int32_t*)ptr); - while (i>=0) - { - speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); - speex_encoder_ctl(st, SPEEX_GET_BITRATE, &rate); - if (rate <= target) - break; - i--; - } - vbr_qual=i; - if (vbr_qual<0) - vbr_qual=0; - speex_encoder_ctl(st, SPEEX_SET_VBR_QUALITY, &vbr_qual); - st->abr_count=0; - st->abr_drift=0; - st->abr_drift2=0; - } - - break; - case SPEEX_GET_ABR: - (*(spx_int32_t*)ptr) = st->abr_enabled; - break; -#endif /* #ifndef DISABLE_VBR */ - - case SPEEX_SET_QUALITY: - { - spx_int32_t nb_qual; - int quality = (*(spx_int32_t*)ptr); - if (quality < 0) - quality = 0; - if (quality > 10) - quality = 10; - st->submodeSelect = st->submodeID = ((const SpeexSBMode*)(st->mode->mode))->quality_map[quality]; - nb_qual = ((const SpeexSBMode*)(st->mode->mode))->low_quality_map[quality]; - speex_encoder_ctl(st->st_low, SPEEX_SET_MODE, &nb_qual); - } - break; - case SPEEX_SET_COMPLEXITY: - speex_encoder_ctl(st->st_low, SPEEX_SET_COMPLEXITY, ptr); - st->complexity = (*(spx_int32_t*)ptr); - if (st->complexity<1) - st->complexity=1; - break; - case SPEEX_GET_COMPLEXITY: - (*(spx_int32_t*)ptr) = st->complexity; - break; - case SPEEX_SET_BITRATE: - { - spx_int32_t i=10; - spx_int32_t rate, target; - target = (*(spx_int32_t*)ptr); - while (i>=0) - { - speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); - speex_encoder_ctl(st, SPEEX_GET_BITRATE, &rate); - if (rate <= target) - break; - i--; - } - } - break; - case SPEEX_GET_BITRATE: - speex_encoder_ctl(st->st_low, request, ptr); - /*fprintf (stderr, "before: %d\n", (*(int*)ptr));*/ - if (st->submodes[st->submodeID]) - (*(spx_int32_t*)ptr) += st->sampling_rate*SUBMODE(bits_per_frame)/st->full_frame_size; - else - (*(spx_int32_t*)ptr) += st->sampling_rate*(SB_SUBMODE_BITS+1)/st->full_frame_size; - /*fprintf (stderr, "after: %d\n", (*(int*)ptr));*/ - break; - case SPEEX_SET_SAMPLING_RATE: - { - spx_int32_t tmp=(*(spx_int32_t*)ptr); - st->sampling_rate = tmp; - tmp>>=1; - speex_encoder_ctl(st->st_low, SPEEX_SET_SAMPLING_RATE, &tmp); - } - break; - case SPEEX_GET_SAMPLING_RATE: - (*(spx_int32_t*)ptr)=st->sampling_rate; - break; - case SPEEX_RESET_STATE: - { - int i; - st->first = 1; - for (i=0;i<st->lpcSize;i++) - st->old_lsp[i]= DIV32(MULT16_16(QCONST16(3.1415927f, LSP_SHIFT), i+1), st->lpcSize+1); - for (i=0;i<st->lpcSize;i++) - st->mem_sw[i]=st->mem_sp[i]=st->mem_sp2[i]=0; - for (i=0;i<QMF_ORDER;i++) - st->h0_mem[i]=st->h1_mem[i]=0; - } - break; - case SPEEX_SET_SUBMODE_ENCODING: - st->encode_submode = (*(spx_int32_t*)ptr); - speex_encoder_ctl(st->st_low, SPEEX_SET_SUBMODE_ENCODING, ptr); - break; - case SPEEX_GET_SUBMODE_ENCODING: - (*(spx_int32_t*)ptr) = st->encode_submode; - break; - case SPEEX_GET_LOOKAHEAD: - speex_encoder_ctl(st->st_low, SPEEX_GET_LOOKAHEAD, ptr); - (*(spx_int32_t*)ptr) = 2*(*(spx_int32_t*)ptr) + QMF_ORDER - 1; - break; - case SPEEX_SET_PLC_TUNING: - speex_encoder_ctl(st->st_low, SPEEX_SET_PLC_TUNING, ptr); - break; - case SPEEX_GET_PLC_TUNING: - speex_encoder_ctl(st->st_low, SPEEX_GET_PLC_TUNING, ptr); - break; -#ifndef DISABLE_VBR - case SPEEX_SET_VBR_MAX_BITRATE: - { - st->vbr_max = (*(spx_int32_t*)ptr); - if (SPEEX_SET_VBR_MAX_BITRATE<1) - { - speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_MAX_BITRATE, &st->vbr_max); - st->vbr_max_high = 17600; - } else { - spx_int32_t low_rate; - if (st->vbr_max >= 42200) - { - st->vbr_max_high = 17600; - } else if (st->vbr_max >= 27800) - { - st->vbr_max_high = 9600; - } else if (st->vbr_max > 20600) - { - st->vbr_max_high = 5600; - } else { - st->vbr_max_high = 1800; - } - if (st->subframeSize==80) - st->vbr_max_high = 1800; - low_rate = st->vbr_max - st->vbr_max_high; - speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_MAX_BITRATE, &low_rate); - } - } - break; - case SPEEX_GET_VBR_MAX_BITRATE: - (*(spx_int32_t*)ptr) = st->vbr_max; - break; -#endif /* #ifndef DISABLE_VBR */ - case SPEEX_SET_HIGHPASS: - speex_encoder_ctl(st->st_low, SPEEX_SET_HIGHPASS, ptr); - break; - case SPEEX_GET_HIGHPASS: - speex_encoder_ctl(st->st_low, SPEEX_GET_HIGHPASS, ptr); - break; - - - /* This is all internal stuff past this point */ - case SPEEX_GET_PI_GAIN: - { - int i; - spx_word32_t *g = (spx_word32_t*)ptr; - for (i=0;i<st->nbSubframes;i++) - g[i]=st->pi_gain[i]; - } - break; - case SPEEX_GET_EXC: - { - int i; - for (i=0;i<st->nbSubframes;i++) - ((spx_word16_t*)ptr)[i] = st->exc_rms[i]; - } - break; -#ifndef DISABLE_VBR - case SPEEX_GET_RELATIVE_QUALITY: - (*(float*)ptr)=st->relative_quality; - break; -#endif /* #ifndef DISABLE_VBR */ - case SPEEX_SET_INNOVATION_SAVE: - st->innov_rms_save = (spx_word16_t*)ptr; - break; - case SPEEX_SET_WIDEBAND: - speex_encoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, ptr); - break; - case SPEEX_GET_STACK: - *((char**)ptr) = st->stack; - break; - default: - speex_warning_int("Unknown nb_ctl request: ", request); - return -1; - } - return 0; -} - -int sb_decoder_ctl(void *state, int request, void *ptr) -{ - SBDecState *st; - st=(SBDecState*)state; - switch(request) - { - case SPEEX_SET_HIGH_MODE: - st->submodeID = (*(spx_int32_t*)ptr); - break; - case SPEEX_SET_LOW_MODE: - speex_decoder_ctl(st->st_low, SPEEX_SET_LOW_MODE, ptr); - break; - case SPEEX_GET_LOW_MODE: - speex_decoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, ptr); - break; - case SPEEX_GET_FRAME_SIZE: - (*(spx_int32_t*)ptr) = st->full_frame_size; - break; - case SPEEX_SET_ENH: - speex_decoder_ctl(st->st_low, request, ptr); - st->lpc_enh_enabled = *((spx_int32_t*)ptr); - break; - case SPEEX_GET_ENH: - *((spx_int32_t*)ptr) = st->lpc_enh_enabled; - break; - case SPEEX_SET_MODE: - case SPEEX_SET_QUALITY: - { - spx_int32_t nb_qual; - int quality = (*(spx_int32_t*)ptr); - if (quality < 0) - quality = 0; - if (quality > 10) - quality = 10; - st->submodeID = ((const SpeexSBMode*)(st->mode->mode))->quality_map[quality]; - nb_qual = ((const SpeexSBMode*)(st->mode->mode))->low_quality_map[quality]; - speex_decoder_ctl(st->st_low, SPEEX_SET_MODE, &nb_qual); - } - break; - case SPEEX_GET_BITRATE: - speex_decoder_ctl(st->st_low, request, ptr); - if (st->submodes[st->submodeID]) - (*(spx_int32_t*)ptr) += st->sampling_rate*SUBMODE(bits_per_frame)/st->full_frame_size; - else - (*(spx_int32_t*)ptr) += st->sampling_rate*(SB_SUBMODE_BITS+1)/st->full_frame_size; - break; - case SPEEX_SET_SAMPLING_RATE: - { - spx_int32_t tmp=(*(spx_int32_t*)ptr); - st->sampling_rate = tmp; - tmp>>=1; - speex_decoder_ctl(st->st_low, SPEEX_SET_SAMPLING_RATE, &tmp); - } - break; - case SPEEX_GET_SAMPLING_RATE: - (*(spx_int32_t*)ptr)=st->sampling_rate; - break; - case SPEEX_SET_HANDLER: - speex_decoder_ctl(st->st_low, SPEEX_SET_HANDLER, ptr); - break; - case SPEEX_SET_USER_HANDLER: - speex_decoder_ctl(st->st_low, SPEEX_SET_USER_HANDLER, ptr); - break; - case SPEEX_RESET_STATE: - { - int i; - for (i=0;i<2*st->lpcSize;i++) - st->mem_sp[i]=0; - for (i=0;i<QMF_ORDER;i++) - st->g0_mem[i]=st->g1_mem[i]=0; - st->last_ener=0; - } - break; - case SPEEX_SET_SUBMODE_ENCODING: - st->encode_submode = (*(spx_int32_t*)ptr); - speex_decoder_ctl(st->st_low, SPEEX_SET_SUBMODE_ENCODING, ptr); - break; - case SPEEX_GET_SUBMODE_ENCODING: - (*(spx_int32_t*)ptr) = st->encode_submode; - break; - case SPEEX_GET_LOOKAHEAD: - speex_decoder_ctl(st->st_low, SPEEX_GET_LOOKAHEAD, ptr); - (*(spx_int32_t*)ptr) = 2*(*(spx_int32_t*)ptr); - break; - case SPEEX_SET_HIGHPASS: - speex_decoder_ctl(st->st_low, SPEEX_SET_HIGHPASS, ptr); - break; - case SPEEX_GET_HIGHPASS: - speex_decoder_ctl(st->st_low, SPEEX_GET_HIGHPASS, ptr); - break; - case SPEEX_GET_ACTIVITY: - speex_decoder_ctl(st->st_low, SPEEX_GET_ACTIVITY, ptr); - break; - case SPEEX_GET_PI_GAIN: - { - int i; - spx_word32_t *g = (spx_word32_t*)ptr; - for (i=0;i<st->nbSubframes;i++) - g[i]=st->pi_gain[i]; - } - break; - case SPEEX_GET_EXC: - { - int i; - for (i=0;i<st->nbSubframes;i++) - ((spx_word16_t*)ptr)[i] = st->exc_rms[i]; - } - break; - case SPEEX_GET_DTX_STATUS: - speex_decoder_ctl(st->st_low, SPEEX_GET_DTX_STATUS, ptr); - break; - case SPEEX_SET_INNOVATION_SAVE: - st->innov_save = (spx_word16_t*)ptr; - break; - case SPEEX_SET_WIDEBAND: - speex_decoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, ptr); - break; - case SPEEX_GET_STACK: - *((char**)ptr) = st->stack; - break; - default: - speex_warning_int("Unknown nb_ctl request: ", request); - return -1; - } - return 0; -} - -#endif - |