diff options
Diffstat (limited to 'src/codec2_internal.h')
| -rw-r--r-- | src/codec2_internal.h | 134 |
1 files changed, 68 insertions, 66 deletions
diff --git a/src/codec2_internal.h b/src/codec2_internal.h index b23ecaa..0b54585 100644 --- a/src/codec2_internal.h +++ b/src/codec2_internal.h @@ -35,75 +35,77 @@ #include "newamp2.h" struct CODEC2 { - int mode; - C2CONST c2const; - int Fs; - int n_samp; - int m_pitch; - codec2_fft_cfg fft_fwd_cfg; /* forward FFT config */ - codec2_fftr_cfg fftr_fwd_cfg; /* forward real FFT config */ - float *w; /* [m_pitch] time domain hamming window */ - float W[FFT_ENC]; /* DFT of w[] */ - float *Pn; /* [2*n_samp] trapezoidal synthesis window */ - float *bpf_buf; /* buffer for band pass filter */ - float *Sn; /* [m_pitch] input speech */ - float hpf_states[2]; /* high pass filter states */ - void *nlp; /* pitch predictor states */ - int gray; /* non-zero for gray encoding */ - - codec2_fftr_cfg fftr_inv_cfg; /* inverse FFT config */ - float *Sn_; /* [2*n_samp] synthesised output speech */ - float ex_phase; /* excitation model phase track */ - float bg_est; /* background noise estimate for post filter */ - float prev_f0_enc; /* previous frame's f0 estimate */ - MODEL prev_model_dec; /* previous frame's model parameters */ - float prev_lsps_dec[LPC_ORD]; /* previous frame's LSPs */ - float prev_e_dec; /* previous frame's LPC energy */ - - int lpc_pf; /* LPC post filter on */ - int bass_boost; /* LPC post filter bass boost */ - float beta; /* LPC post filter parameters */ - float gamma; - - float xq_enc[2]; /* joint pitch and energy VQ states */ - float xq_dec[2]; - - int smoothing; /* enable smoothing for channels with errors */ - float *softdec; /* optional soft decn bits from demod */ - - /* newamp1 states */ - - float rate_K_sample_freqs_kHz[NEWAMP1_K]; - float prev_rate_K_vec_[NEWAMP1_K]; - float Wo_left; - int voicing_left; - codec2_fft_cfg phase_fft_fwd_cfg; - codec2_fft_cfg phase_fft_inv_cfg; - float se; /* running sum of squared error */ - unsigned int nse; /* number of terms in sum */ - float *user_rate_K_vec_no_mean_; /* optional, user supplied vector for quantisation experiments */ - bool post_filter_en; - float eq[NEWAMP1_K]; /* optional equaliser */ - bool eq_en; - - /*newamp2 states (also uses newamp1 states )*/ - float energy_prev; - float n2_rate_K_sample_freqs_kHz[NEWAMP2_K]; - float n2_prev_rate_K_vec_[NEWAMP2_K]; - float n2_pwb_rate_K_sample_freqs_kHz[NEWAMP2_16K_K]; - float n2_pwb_prev_rate_K_vec_[NEWAMP2_16K_K]; - - /* used to dump features for deep learning experiments */ - FILE *fmlfeat, *fmlmodel; - - /* encode/decode function pointers for the selected mode */ - void (*encode)(struct CODEC2 *c2, unsigned char * bits, short speech[]); - void (*decode)(struct CODEC2 *c2, short speech[], const unsigned char * bits); - void (*decode_ber)(struct CODEC2 *c2, short speech[], const unsigned char * bits, float ber_est); + int mode; + C2CONST c2const; + int Fs; + int n_samp; + int m_pitch; + codec2_fft_cfg fft_fwd_cfg; /* forward FFT config */ + codec2_fftr_cfg fftr_fwd_cfg; /* forward real FFT config */ + float *w; /* [m_pitch] time domain hamming window */ + float W[FFT_ENC]; /* DFT of w[] */ + float *Pn; /* [2*n_samp] trapezoidal synthesis window */ + float *bpf_buf; /* buffer for band pass filter */ + float *Sn; /* [m_pitch] input speech */ + float hpf_states[2]; /* high pass filter states */ + void *nlp; /* pitch predictor states */ + int gray; /* non-zero for gray encoding */ + + codec2_fftr_cfg fftr_inv_cfg; /* inverse FFT config */ + float *Sn_; /* [2*n_samp] synthesised output speech */ + float ex_phase; /* excitation model phase track */ + float bg_est; /* background noise estimate for post filter */ + float prev_f0_enc; /* previous frame's f0 estimate */ + MODEL prev_model_dec; /* previous frame's model parameters */ + float prev_lsps_dec[LPC_ORD]; /* previous frame's LSPs */ + float prev_e_dec; /* previous frame's LPC energy */ + + int lpc_pf; /* LPC post filter on */ + int bass_boost; /* LPC post filter bass boost */ + float beta; /* LPC post filter parameters */ + float gamma; + + float xq_enc[2]; /* joint pitch and energy VQ states */ + float xq_dec[2]; + + int smoothing; /* enable smoothing for channels with errors */ + float *softdec; /* optional soft decn bits from demod */ + + /* newamp1 states */ + + float rate_K_sample_freqs_kHz[NEWAMP1_K]; + float prev_rate_K_vec_[NEWAMP1_K]; + float Wo_left; + int voicing_left; + codec2_fft_cfg phase_fft_fwd_cfg; + codec2_fft_cfg phase_fft_inv_cfg; + float se; /* running sum of squared error */ + unsigned int nse; /* number of terms in sum */ + float *user_rate_K_vec_no_mean_; /* optional, user supplied vector for + quantisation experiments */ + bool post_filter_en; + float eq[NEWAMP1_K]; /* optional equaliser */ + bool eq_en; + + /*newamp2 states (also uses newamp1 states )*/ + float energy_prev; + float n2_rate_K_sample_freqs_kHz[NEWAMP2_K]; + float n2_prev_rate_K_vec_[NEWAMP2_K]; + float n2_pwb_rate_K_sample_freqs_kHz[NEWAMP2_16K_K]; + float n2_pwb_prev_rate_K_vec_[NEWAMP2_16K_K]; + + /* used to dump features for deep learning experiments */ + FILE *fmlfeat, *fmlmodel; + + /* encode/decode function pointers for the selected mode */ + void (*encode)(struct CODEC2 *c2, unsigned char *bits, short speech[]); + void (*decode)(struct CODEC2 *c2, short speech[], const unsigned char *bits); + void (*decode_ber)(struct CODEC2 *c2, short speech[], + const unsigned char *bits, float ber_est); }; // test and debug void analyse_one_frame(struct CODEC2 *c2, MODEL *model, short speech[]); void synthesise_one_frame(struct CODEC2 *c2, short speech[], MODEL *model, - COMP Aw[], float gain); + COMP Aw[], float gain); #endif |