Add speex to trunk/deps/third_party/....

speex/libspeex/modes_wb.c

+/* Copyright (C) 2002-2007 Jean-Marc Valin 
+   File: modes.c
+
+   Describes the wideband modes of the codec
+
+   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.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "modes.h"
+#include "ltp.h"
+#include "quant_lsp.h"
+#include "cb_search.h"
+#include "sb_celp.h"
+#include "nb_celp.h"
+#include "vbr.h"
+#include "arch.h"
+#include <math.h>
+#include "os_support.h"
+
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+EXPORT const SpeexMode * const speex_mode_list[SPEEX_NB_MODES] = {&speex_nb_mode, &speex_wb_mode, &speex_uwb_mode};
+
+extern const signed char hexc_table[];
+extern const signed char hexc_10_32_table[];
+
+#ifndef DISABLE_WIDEBAND
+
+/* Split-VQ innovation for high-band wideband */
+static const split_cb_params split_cb_high = {
+   8,               /*subvect_size*/
+   5,               /*nb_subvect*/
+   hexc_table,       /*shape_cb*/
+   7,               /*shape_bits*/
+   1,
+};
+
+
+/* Split-VQ innovation for high-band wideband */
+static const split_cb_params split_cb_high_lbr = {
+   10,               /*subvect_size*/
+   4,               /*nb_subvect*/
+   hexc_10_32_table,       /*shape_cb*/
+   5,               /*shape_bits*/
+   0,
+};
+
+#endif
+
+
+static const SpeexSubmode wb_submode1 = {
+   0,
+   0,
+   1,
+   0,
+   /*LSP quantization*/
+   lsp_quant_high,
+   lsp_unquant_high,
+   /*Pitch quantization*/
+   NULL,
+   NULL,
+   NULL,
+   /*No innovation quantization*/
+   NULL,
+   NULL,
+   NULL,
+   -1,
+   36
+};
+
+
+static const SpeexSubmode wb_submode2 = {
+   0,
+   0,
+   1,
+   0,
+   /*LSP quantization*/
+   lsp_quant_high,
+   lsp_unquant_high,
+   /*Pitch quantization*/
+   NULL,
+   NULL,
+   NULL,
+   /*Innovation quantization*/
+   split_cb_search_shape_sign,
+   split_cb_shape_sign_unquant,
+#ifdef DISABLE_WIDEBAND
+   NULL,
+#else
+   &split_cb_high_lbr,
+#endif
+   -1,
+   112
+};
+
+
+static const SpeexSubmode wb_submode3 = {
+   0,
+   0,
+   1,
+   0,
+   /*LSP quantization*/
+   lsp_quant_high,
+   lsp_unquant_high,
+   /*Pitch quantization*/
+   NULL,
+   NULL,
+   NULL,
+   /*Innovation quantization*/
+   split_cb_search_shape_sign,
+   split_cb_shape_sign_unquant,
+#ifdef DISABLE_WIDEBAND
+   NULL,
+#else
+   &split_cb_high,
+#endif
+   -1,
+   192
+};
+
+static const SpeexSubmode wb_submode4 = {
+   0,
+   0,
+   1,
+   1,
+   /*LSP quantization*/
+   lsp_quant_high,
+   lsp_unquant_high,
+   /*Pitch quantization*/
+   NULL,
+   NULL,
+   NULL,
+   /*Innovation quantization*/
+   split_cb_search_shape_sign,
+   split_cb_shape_sign_unquant,
+#ifdef DISABLE_WIDEBAND
+   NULL,
+#else
+   &split_cb_high,
+#endif
+   -1,
+   352
+};
+
+
+/* Split-band wideband CELP mode*/
+static const SpeexSBMode sb_wb_mode = {
+   &speex_nb_mode,
+   160,    /*frameSize*/
+   40,     /*subframeSize*/
+   8,     /*lpcSize*/
+#ifdef FIXED_POINT
+   29491, 19661, /* gamma1, gamma2 */
+#else
+   0.9, 0.6, /* gamma1, gamma2 */
+#endif
+   QCONST16(.0002,15), /*lpc_floor*/
+   QCONST16(0.9f,15),
+   {NULL, &wb_submode1, &wb_submode2, &wb_submode3, &wb_submode4, NULL, NULL, NULL},
+   3,
+   {1, 8, 2, 3, 4, 5, 5, 6, 6, 7, 7},
+   {1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4},
+#ifndef DISABLE_VBR
+   vbr_hb_thresh,
+#endif
+   5
+};
+
+
+EXPORT const SpeexMode speex_wb_mode = {
+   &sb_wb_mode,
+   wb_mode_query,
+   "wideband (sub-band CELP)",
+   1,
+   4,
+   &sb_encoder_init,
+   &sb_encoder_destroy,
+   &sb_encode,
+   &sb_decoder_init,
+   &sb_decoder_destroy,
+   &sb_decode,
+   &sb_encoder_ctl,
+   &sb_decoder_ctl,
+};
+
+
+
+/* "Ultra-wideband" mode stuff */
+
+
+
+/* Split-band "ultra-wideband" (32 kbps) CELP mode*/
+static const SpeexSBMode sb_uwb_mode = {
+   &speex_wb_mode,
+   320,    /*frameSize*/
+   80,     /*subframeSize*/
+   8,     /*lpcSize*/
+#ifdef FIXED_POINT
+   29491, 19661, /* gamma1, gamma2 */
+#else
+   0.9, 0.6, /* gamma1, gamma2 */
+#endif
+   QCONST16(.0002,15), /*lpc_floor*/
+   QCONST16(0.7f,15),
+   {NULL, &wb_submode1, NULL, NULL, NULL, NULL, NULL, NULL},
+   1,
+   {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
+   {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
+#ifndef DISABLE_VBR
+   vbr_uhb_thresh,
+#endif
+   2
+};
+
+int wb_mode_query(const void *mode, int request, void *ptr)
+{
+   const SpeexSBMode *m = (const SpeexSBMode*)mode;
+
+   switch (request)
+   {
+      case SPEEX_MODE_FRAME_SIZE:
+         *((int*)ptr)=2*m->frameSize;
+         break;
+      case SPEEX_SUBMODE_BITS_PER_FRAME:
+         if (*((int*)ptr)==0)
+            *((int*)ptr) = SB_SUBMODE_BITS+1;
+         else if (m->submodes[*((int*)ptr)]==NULL)
+            *((int*)ptr) = -1;
+         else
+            *((int*)ptr) = m->submodes[*((int*)ptr)]->bits_per_frame;
+         break;
+      default:
+         speex_warning_int("Unknown wb_mode_query request: ", request);
+         return -1;
+   }
+   return 0;
+}
+
+
+EXPORT const SpeexMode speex_uwb_mode = {
+   &sb_uwb_mode,
+   wb_mode_query,
+   "ultra-wideband (sub-band CELP)",
+   2,
+   4,
+   &sb_encoder_init,
+   &sb_encoder_destroy,
+   &sb_encode,
+   &sb_decoder_init,
+   &sb_decoder_destroy,
+   &sb_decode,
+   &sb_encoder_ctl,
+   &sb_decoder_ctl,
+};
+
+/* We have defined speex_lib_get_mode() as a macro in speex.h */
+#undef speex_lib_get_mode
+
+EXPORT const SpeexMode * speex_lib_get_mode (int mode)
+{
+   if (mode < 0 || mode >= SPEEX_NB_MODES) return NULL;
+
+   return speex_mode_list[mode];
+}
+
+
+