Index: speex/libspeex/modes.h |
=================================================================== |
--- speex/libspeex/modes.h (revision 0) |
+++ speex/libspeex/modes.h (revision 0) |
@@ -0,0 +1,161 @@ |
+/* Copyright (C) 2002-2006 Jean-Marc Valin */ |
+/** |
+ @file modes.h |
+ @brief Describes the different 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. |
+ |
+*/ |
+ |
+#ifndef MODES_H |
+#define MODES_H |
+ |
+#include <speex/speex.h> |
+#include <speex/speex_bits.h> |
+#include "arch.h" |
+ |
+#define NB_SUBMODES 16 |
+#define NB_SUBMODE_BITS 4 |
+ |
+#define SB_SUBMODES 8 |
+#define SB_SUBMODE_BITS 3 |
+ |
+/* Used internally, NOT TO BE USED in applications */ |
+/** Used internally*/ |
+#define SPEEX_GET_PI_GAIN 100 |
+/** Used internally*/ |
+#define SPEEX_GET_EXC 101 |
+/** Used internally*/ |
+#define SPEEX_GET_INNOV 102 |
+/** Used internally*/ |
+#define SPEEX_GET_DTX_STATUS 103 |
+/** Used internally*/ |
+#define SPEEX_SET_INNOVATION_SAVE 104 |
+/** Used internally*/ |
+#define SPEEX_SET_WIDEBAND 105 |
+ |
+/** Used internally*/ |
+#define SPEEX_GET_STACK 106 |
+ |
+ |
+/** Quantizes LSPs */ |
+typedef void (*lsp_quant_func)(spx_lsp_t *, spx_lsp_t *, int, SpeexBits *); |
+ |
+/** Decodes quantized LSPs */ |
+typedef void (*lsp_unquant_func)(spx_lsp_t *, int, SpeexBits *); |
+ |
+ |
+/** Long-term predictor quantization */ |
+typedef int (*ltp_quant_func)(spx_word16_t *, spx_word16_t *, spx_coef_t *, spx_coef_t *, |
+ spx_coef_t *, spx_sig_t *, const void *, int, int, spx_word16_t, |
+ int, int, SpeexBits*, char *, spx_word16_t *, spx_word16_t *, int, int, int, spx_word32_t *); |
+ |
+/** Long-term un-quantize */ |
+typedef void (*ltp_unquant_func)(spx_word16_t *, spx_word32_t *, int, int, spx_word16_t, const void *, int, int *, |
+ spx_word16_t *, SpeexBits*, char*, int, int, spx_word16_t, int); |
+ |
+ |
+/** Innovation quantization function */ |
+typedef void (*innovation_quant_func)(spx_word16_t *, spx_coef_t *, spx_coef_t *, spx_coef_t *, const void *, int, int, |
+ spx_sig_t *, spx_word16_t *, SpeexBits *, char *, int, int); |
+ |
+/** Innovation unquantization function */ |
+typedef void (*innovation_unquant_func)(spx_sig_t *, const void *, int, SpeexBits*, char *, spx_int32_t *); |
+ |
+/** Description of a Speex sub-mode (wither narrowband or wideband */ |
+typedef struct SpeexSubmode { |
+ int lbr_pitch; /**< Set to -1 for "normal" modes, otherwise encode pitch using a global pitch and allowing a +- lbr_pitch variation (for low not-rates)*/ |
+ int forced_pitch_gain; /**< Use the same (forced) pitch gain for all sub-frames */ |
+ int have_subframe_gain; /**< Number of bits to use as sub-frame innovation gain */ |
+ int double_codebook; /**< Apply innovation quantization twice for higher quality (and higher bit-rate)*/ |
+ /*LSP functions*/ |
+ lsp_quant_func lsp_quant; /**< LSP quantization function */ |
+ lsp_unquant_func lsp_unquant; /**< LSP unquantization function */ |
+ |
+ /*Long-term predictor functions*/ |
+ ltp_quant_func ltp_quant; /**< Long-term predictor (pitch) quantizer */ |
+ ltp_unquant_func ltp_unquant; /**< Long-term predictor (pitch) un-quantizer */ |
+ const void *ltp_params; /**< Pitch parameters (options) */ |
+ |
+ /*Quantization of innovation*/ |
+ innovation_quant_func innovation_quant; /**< Innovation quantization */ |
+ innovation_unquant_func innovation_unquant; /**< Innovation un-quantization */ |
+ const void *innovation_params; /**< Innovation quantization parameters*/ |
+ |
+ spx_word16_t comb_gain; /**< Gain of enhancer comb filter */ |
+ |
+ int bits_per_frame; /**< Number of bits per frame after encoding*/ |
+} SpeexSubmode; |
+ |
+/** Struct defining the encoding/decoding mode*/ |
+typedef struct SpeexNBMode { |
+ int frameSize; /**< Size of frames used for encoding */ |
+ int subframeSize; /**< Size of sub-frames used for encoding */ |
+ int lpcSize; /**< Order of LPC filter */ |
+ int pitchStart; /**< Smallest pitch value allowed */ |
+ int pitchEnd; /**< Largest pitch value allowed */ |
+ |
+ spx_word16_t gamma1; /**< Perceptual filter parameter #1 */ |
+ spx_word16_t gamma2; /**< Perceptual filter parameter #2 */ |
+ spx_word16_t lpc_floor; /**< Noise floor for LPC analysis */ |
+ |
+ const SpeexSubmode *submodes[NB_SUBMODES]; /**< Sub-mode data for the mode */ |
+ int defaultSubmode; /**< Default sub-mode to use when encoding */ |
+ int quality_map[11]; /**< Mode corresponding to each quality setting */ |
+} SpeexNBMode; |
+ |
+ |
+/** Struct defining the encoding/decoding mode for SB-CELP (wideband) */ |
+typedef struct SpeexSBMode { |
+ const SpeexMode *nb_mode; /**< Embedded narrowband mode */ |
+ int frameSize; /**< Size of frames used for encoding */ |
+ int subframeSize; /**< Size of sub-frames used for encoding */ |
+ int lpcSize; /**< Order of LPC filter */ |
+ spx_word16_t gamma1; /**< Perceptual filter parameter #1 */ |
+ spx_word16_t gamma2; /**< Perceptual filter parameter #1 */ |
+ spx_word16_t lpc_floor; /**< Noise floor for LPC analysis */ |
+ spx_word16_t folding_gain; |
+ |
+ const SpeexSubmode *submodes[SB_SUBMODES]; /**< Sub-mode data for the mode */ |
+ int defaultSubmode; /**< Default sub-mode to use when encoding */ |
+ int low_quality_map[11]; /**< Mode corresponding to each quality setting */ |
+ int quality_map[11]; /**< Mode corresponding to each quality setting */ |
+#ifndef DISABLE_VBR |
+ const float (*vbr_thresh)[11]; |
+#endif |
+ int nb_modes; |
+} SpeexSBMode; |
+ |
+int speex_encode_native(void *state, spx_word16_t *in, SpeexBits *bits); |
+int speex_decode_native(void *state, SpeexBits *bits, spx_word16_t *out); |
+ |
+int nb_mode_query(const void *mode, int request, void *ptr); |
+int wb_mode_query(const void *mode, int request, void *ptr); |
+ |
+#endif |
Property changes on: speex/libspeex/modes.h |
___________________________________________________________________ |
Name: svn:executable |
+ * |