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Diffstat (limited to 'drivers/speex/nb_celp.h')
| -rw-r--r-- | drivers/speex/nb_celp.h | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/drivers/speex/nb_celp.h b/drivers/speex/nb_celp.h deleted file mode 100644 index 14c776ff35..0000000000 --- a/drivers/speex/nb_celp.h +++ /dev/null @@ -1,203 +0,0 @@ -/* Copyright (C) 2002-2006 Jean-Marc Valin */ -/** - @file nb_celp.h - @brief Narrowband CELP encoder/decoder -*/ -/* - 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 NB_CELP_H -#define NB_CELP_H - -#include "modes.h" -#include <speex/speex_bits.h> -#include <speex/speex_callbacks.h> -#include "vbr.h" -#include "filters.h" - -#ifdef VORBIS_PSYCHO -#include "vorbis_psy.h" -#endif - -/**Structure representing the full state of the narrowband encoder*/ -typedef struct EncState { - const SpeexMode *mode; /**< Mode corresponding to the state */ - int first; /**< Is this the first frame? */ - int frameSize; /**< Size of frames */ - int subframeSize; /**< Size of sub-frames */ - int nbSubframes; /**< Number of sub-frames */ - int windowSize; /**< Analysis (LPC) window length */ - int lpcSize; /**< LPC order */ - int min_pitch; /**< Minimum pitch value allowed */ - int max_pitch; /**< Maximum pitch value allowed */ - - spx_word32_t cumul_gain; /**< Product of previously used pitch gains (Q10) */ - int bounded_pitch; /**< Next frame should not rely on previous frames for pitch */ - int ol_pitch; /**< Open-loop pitch */ - int ol_voiced; /**< Open-loop voiced/non-voiced decision */ - int *pitch; - -#ifdef VORBIS_PSYCHO - VorbisPsy *psy; - float *psy_window; - float *curve; - float *old_curve; -#endif - - spx_word16_t gamma1; /**< Perceptual filter: A(z/gamma1) */ - spx_word16_t gamma2; /**< Perceptual filter: A(z/gamma2) */ - spx_word16_t lpc_floor; /**< Noise floor multiplier for A[0] in LPC analysis*/ - char *stack; /**< Pseudo-stack allocation for temporary memory */ - spx_word16_t *winBuf; /**< Input buffer (original signal) */ - spx_word16_t *excBuf; /**< Excitation buffer */ - spx_word16_t *exc; /**< Start of excitation frame */ - spx_word16_t *swBuf; /**< Weighted signal buffer */ - spx_word16_t *sw; /**< Start of weighted signal frame */ - const spx_word16_t *window; /**< Temporary (Hanning) window */ - const spx_word16_t *lagWindow; /**< Window applied to auto-correlation */ - spx_lsp_t *old_lsp; /**< LSPs for previous frame */ - spx_lsp_t *old_qlsp; /**< Quantized LSPs for previous frame */ - spx_mem_t *mem_sp; /**< Filter memory for signal synthesis */ - spx_mem_t *mem_sw; /**< Filter memory for perceptually-weighted signal */ - spx_mem_t *mem_sw_whole; /**< Filter memory for perceptually-weighted signal (whole frame)*/ - spx_mem_t *mem_exc; /**< Filter memory for excitation (whole frame) */ - spx_mem_t *mem_exc2; /**< Filter memory for excitation (whole frame) */ - spx_mem_t mem_hp[2]; /**< High-pass filter memory */ - spx_word32_t *pi_gain; /**< Gain of LPC filter at theta=pi (fe/2) */ - spx_word16_t *innov_rms_save; /**< If non-NULL, innovation RMS is copied here */ - -#ifndef DISABLE_VBR - VBRState *vbr; /**< State of the VBR data */ - float vbr_quality; /**< Quality setting for VBR encoding */ - float relative_quality; /**< Relative quality that will be needed by VBR */ - spx_int32_t vbr_enabled; /**< 1 for enabling VBR, 0 otherwise */ - spx_int32_t vbr_max; /**< Max bit-rate allowed in VBR mode */ - int vad_enabled; /**< 1 for enabling VAD, 0 otherwise */ - int dtx_enabled; /**< 1 for enabling DTX, 0 otherwise */ - int dtx_count; /**< Number of consecutive DTX frames */ - spx_int32_t abr_enabled; /**< ABR setting (in bps), 0 if off */ - float abr_drift; - float abr_drift2; - float abr_count; -#endif /* #ifndef DISABLE_VBR */ - - int complexity; /**< Complexity setting (0-10 from least complex to most complex) */ - spx_int32_t sampling_rate; - int plc_tuning; - int encode_submode; - const SpeexSubmode * const *submodes; /**< Sub-mode data */ - int submodeID; /**< Activated sub-mode */ - int submodeSelect; /**< Mode chosen by the user (may differ from submodeID if VAD is on) */ - int isWideband; /**< Is this used as part of the embedded wideband codec */ - int highpass_enabled; /**< Is the input filter enabled */ -} EncState; - -/**Structure representing the full state of the narrowband decoder*/ -typedef struct DecState { - const SpeexMode *mode; /**< Mode corresponding to the state */ - int first; /**< Is this the first frame? */ - int count_lost; /**< Was the last frame lost? */ - int frameSize; /**< Size of frames */ - int subframeSize; /**< Size of sub-frames */ - int nbSubframes; /**< Number of sub-frames */ - int lpcSize; /**< LPC order */ - int min_pitch; /**< Minimum pitch value allowed */ - int max_pitch; /**< Maximum pitch value allowed */ - spx_int32_t sampling_rate; - - spx_word16_t last_ol_gain; /**< Open-loop gain for previous frame */ - - char *stack; /**< Pseudo-stack allocation for temporary memory */ - spx_word16_t *excBuf; /**< Excitation buffer */ - spx_word16_t *exc; /**< Start of excitation frame */ - spx_lsp_t *old_qlsp; /**< Quantized LSPs for previous frame */ - spx_coef_t *interp_qlpc; /**< Interpolated quantized LPCs */ - spx_mem_t *mem_sp; /**< Filter memory for synthesis signal */ - spx_mem_t mem_hp[2]; /**< High-pass filter memory */ - spx_word32_t *pi_gain; /**< Gain of LPC filter at theta=pi (fe/2) */ - spx_word16_t *innov_save; /** If non-NULL, innovation is copied here */ - - spx_word16_t level; - spx_word16_t max_level; - spx_word16_t min_level; - - /* This is used in packet loss concealment */ - int last_pitch; /**< Pitch of last correctly decoded frame */ - spx_word16_t last_pitch_gain; /**< Pitch gain of last correctly decoded frame */ - spx_word16_t pitch_gain_buf[3]; /**< Pitch gain of last decoded frames */ - int pitch_gain_buf_idx; /**< Tail of the buffer */ - spx_int32_t seed; /** Seed used for random number generation */ - - int encode_submode; - const SpeexSubmode * const *submodes; /**< Sub-mode data */ - int submodeID; /**< Activated sub-mode */ - int lpc_enh_enabled; /**< 1 when LPC enhancer is on, 0 otherwise */ - SpeexCallback speex_callbacks[SPEEX_MAX_CALLBACKS]; - - SpeexCallback user_callback; - - /*Vocoder data*/ - spx_word16_t voc_m1; - spx_word32_t voc_m2; - spx_word16_t voc_mean; - int voc_offset; - - int dtx_enabled; - int isWideband; /**< Is this used as part of the embedded wideband codec */ - int highpass_enabled; /**< Is the input filter enabled */ -} DecState; - -/** Initializes encoder state*/ -void *nb_encoder_init(const SpeexMode *m); - -/** De-allocates encoder state resources*/ -void nb_encoder_destroy(void *state); - -/** Encodes one frame*/ -int nb_encode(void *state, void *in, SpeexBits *bits); - - -/** Initializes decoder state*/ -void *nb_decoder_init(const SpeexMode *m); - -/** De-allocates decoder state resources*/ -void nb_decoder_destroy(void *state); - -/** Decodes one frame*/ -int nb_decode(void *state, SpeexBits *bits, void *out); - -/** ioctl-like function for controlling a narrowband encoder */ -int nb_encoder_ctl(void *state, int request, void *ptr); - -/** ioctl-like function for controlling a narrowband decoder */ -int nb_decoder_ctl(void *state, int request, void *ptr); - - -#endif |