#include <sbr.h>
Data Fields | |
| int | sample_rate |
| int | start |
| int | reset |
| SpectrumParameters | spectrum_params |
| int | bs_amp_res_header |
| unsigned | bs_limiter_bands |
| unsigned | bs_limiter_gains |
| unsigned | bs_interpol_freq |
| unsigned | bs_smoothing_mode |
| unsigned | bs_coupling |
| unsigned | k [5] |
| k0, k1, k2 | |
| unsigned | kx [2] |
| kx', and kx respectively, kx is the first QMF subband where SBR is used. | |
| unsigned | m [2] |
| M' and M respectively, M is the number of QMF subbands that use SBR. | |
| unsigned | n_master |
| The number of frequency bands in f_master. | |
| SBRData | data [2] |
| PSContext | ps |
| unsigned | n [2] |
| N_Low and N_High respectively, the number of frequency bands for low and high resolution. | |
| unsigned | n_q |
| Number of noise floor bands. | |
| unsigned | n_lim |
| Number of limiter bands. | |
| uint16_t | f_master [49] |
| The master QMF frequency grouping. | |
| uint16_t | f_tablelow [25] |
| Frequency borders for low resolution SBR. | |
| uint16_t | f_tablehigh [49] |
| Frequency borders for high resolution SBR. | |
| uint16_t | f_tablenoise [6] |
| Frequency borders for noise floors. | |
| uint16_t | f_tablelim [29] |
| Frequency borders for the limiter. | |
| unsigned | num_patches |
| uint8_t | patch_num_subbands [6] |
| uint8_t | patch_start_subband [6] |
| float | X_low [32][40][2] |
| QMF low frequency input to the HF generator. | |
| float | X_high [64][40][2] |
| QMF output of the HF generator. | |
| float | X [2][2][38][64] |
| QMF values of the reconstructed signal. | |
| float | alpha0 [64][2] |
| Zeroth coefficient used to filter the subband signals. | |
| float | alpha1 [64][2] |
| First coefficient used to filter the subband signals. | |
| float | e_origmapped [7][48] |
| Dequantized envelope scalefactors, remapped. | |
| float | q_mapped [7][48] |
| Dequantized noise scalefactors, remapped. | |
| uint8_t | s_mapped [7][48] |
| Sinusoidal presence, remapped. | |
| float | e_curr [7][48] |
| Estimated envelope. | |
| float | q_m [7][48] |
| Amplitude adjusted noise scalefactors. | |
| float | s_m [7][48] |
| Sinusoidal levels. | |
| float | gain [7][48] |
| float | qmf_filter_scratch [5][64] |
| FFTContext | mdct_ana |
| FFTContext | mdct |
Definition at line 112 of file sbr.h.
| float SpectralBandReplication::alpha0[64][2] |
Zeroth coefficient used to filter the subband signals.
Definition at line 164 of file sbr.h.
Referenced by ff_sbr_apply().
| float SpectralBandReplication::alpha1[64][2] |
First coefficient used to filter the subband signals.
Definition at line 166 of file sbr.h.
Referenced by ff_sbr_apply().
| unsigned SpectralBandReplication::bs_coupling |
Definition at line 127 of file sbr.h.
Referenced by read_sbr_channel_pair_element(), read_sbr_envelope(), read_sbr_noise(), and sbr_dequant().
Definition at line 136 of file sbr.h.
Referenced by ff_aac_sbr_ctx_init(), ff_sbr_apply(), read_sbr_channel_pair_element(), read_sbr_single_channel_element(), sbr_dequant(), sbr_make_f_derived(), and sbr_x_gen().
| float SpectralBandReplication::e_curr[7][48] |
Estimated envelope.
Definition at line 174 of file sbr.h.
Referenced by ff_sbr_apply(), and sbr_gain_calc().
| float SpectralBandReplication::e_origmapped[7][48] |
Dequantized envelope scalefactors, remapped.
Definition at line 168 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_mapping().
| uint16_t SpectralBandReplication::f_master[49] |
The master QMF frequency grouping.
Definition at line 145 of file sbr.h.
Referenced by sbr_hf_calc_npatches(), sbr_make_f_derived(), and sbr_make_f_master().
| uint16_t SpectralBandReplication::f_tablehigh[49] |
Frequency borders for high resolution SBR.
Definition at line 149 of file sbr.h.
Referenced by sbr_env_estimate(), sbr_make_f_derived(), and sbr_mapping().
| uint16_t SpectralBandReplication::f_tablelim[29] |
Frequency borders for the limiter.
Definition at line 153 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_make_f_tablelim().
| uint16_t SpectralBandReplication::f_tablelow[25] |
Frequency borders for low resolution SBR.
Definition at line 147 of file sbr.h.
Referenced by sbr_env_estimate(), sbr_make_f_derived(), sbr_make_f_tablelim(), and sbr_mapping().
| uint16_t SpectralBandReplication::f_tablenoise[6] |
Frequency borders for noise floors.
Definition at line 151 of file sbr.h.
Referenced by sbr_hf_gen(), sbr_make_f_derived(), and sbr_mapping().
| float SpectralBandReplication::gain[7][48] |
| unsigned SpectralBandReplication::k[5] |
k0, k1, k2
Definition at line 128 of file sbr.h.
Referenced by ff_sbr_apply(), sbr_hf_calc_npatches(), sbr_make_f_derived(), and sbr_make_f_master().
| unsigned SpectralBandReplication::kx[2] |
kx', and kx respectively, kx is the first QMF subband where SBR is used.
kx' is its value from the previous frame
Definition at line 131 of file sbr.h.
Referenced by ff_aac_sbr_ctx_init(), ff_decode_sbr_extension(), ff_sbr_apply(), sbr_env_estimate(), sbr_gain_calc(), sbr_hf_assemble(), sbr_hf_calc_npatches(), sbr_hf_gen(), sbr_lf_gen(), sbr_make_f_derived(), sbr_make_f_tablelim(), sbr_mapping(), and sbr_x_gen().
| unsigned SpectralBandReplication::m[2] |
M' and M respectively, M is the number of QMF subbands that use SBR.
Definition at line 133 of file sbr.h.
Referenced by ff_decode_sbr_extension(), ff_sbr_apply(), sbr_env_estimate(), sbr_hf_assemble(), sbr_hf_calc_npatches(), sbr_hf_gen(), sbr_make_f_derived(), and sbr_x_gen().
Definition at line 182 of file sbr.h.
Referenced by ff_aac_sbr_ctx_close(), ff_aac_sbr_ctx_init(), and ff_sbr_apply().
Definition at line 181 of file sbr.h.
Referenced by ff_aac_sbr_ctx_close(), ff_aac_sbr_ctx_init(), and ff_sbr_apply().
| unsigned SpectralBandReplication::n[2] |
N_Low and N_High respectively, the number of frequency bands for low and high resolution.
Definition at line 139 of file sbr.h.
Referenced by read_sbr_channel_pair_element(), read_sbr_envelope(), read_sbr_single_channel_element(), sbr_dequant(), sbr_env_estimate(), sbr_make_f_derived(), sbr_make_f_tablelim(), and sbr_mapping().
| unsigned SpectralBandReplication::n_lim |
Number of limiter bands.
Definition at line 143 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_make_f_tablelim().
| unsigned SpectralBandReplication::n_master |
The number of frequency bands in f_master.
Definition at line 135 of file sbr.h.
Referenced by sbr_hf_calc_npatches(), sbr_make_f_derived(), and sbr_make_f_master().
| unsigned SpectralBandReplication::n_q |
Number of noise floor bands.
Definition at line 141 of file sbr.h.
Referenced by read_sbr_invf(), read_sbr_noise(), sbr_chirp(), sbr_dequant(), sbr_make_f_derived(), and sbr_mapping().
| unsigned SpectralBandReplication::num_patches |
Definition at line 154 of file sbr.h.
Referenced by sbr_hf_calc_npatches(), sbr_hf_gen(), and sbr_make_f_tablelim().
| uint8_t SpectralBandReplication::patch_num_subbands[6] |
Definition at line 155 of file sbr.h.
Referenced by sbr_hf_calc_npatches(), sbr_hf_gen(), and sbr_make_f_tablelim().
| uint8_t SpectralBandReplication::patch_start_subband[6] |
Definition at line 137 of file sbr.h.
Referenced by ff_aac_sbr_ctx_init(), ff_sbr_apply(), and read_sbr_extension().
| float SpectralBandReplication::q_m[7][48] |
Amplitude adjusted noise scalefactors.
Definition at line 176 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_hf_assemble().
| float SpectralBandReplication::q_mapped[7][48] |
Dequantized noise scalefactors, remapped.
Definition at line 170 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_mapping().
| float SpectralBandReplication::qmf_filter_scratch[5][64] |
Definition at line 115 of file sbr.h.
Referenced by ff_decode_sbr_extension(), read_sbr_header(), and sbr_hf_assemble().
| float SpectralBandReplication::s_m[7][48] |
Sinusoidal levels.
Definition at line 178 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_hf_assemble().
| uint8_t SpectralBandReplication::s_mapped[7][48] |
Sinusoidal presence, remapped.
Definition at line 172 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_mapping().
Definition at line 113 of file sbr.h.
Referenced by ff_decode_sbr_extension(), ff_sbr_apply(), sbr_hf_calc_npatches(), and sbr_make_f_master().
Definition at line 116 of file sbr.h.
Referenced by read_sbr_header(), sbr_make_f_derived(), sbr_make_f_master(), and sbr_reset().
Definition at line 114 of file sbr.h.
Referenced by ff_decode_sbr_extension(), ff_sbr_apply(), read_sbr_data(), read_sbr_header(), and sbr_reset().
| float SpectralBandReplication::X[2][2][38][64] |
QMF values of the reconstructed signal.
Definition at line 162 of file sbr.h.
Referenced by ff_sbr_apply().
| float SpectralBandReplication::X_high[64][40][2] |
| float SpectralBandReplication::X_low[32][40][2] |
QMF low frequency input to the HF generator.
Definition at line 158 of file sbr.h.
Referenced by ff_sbr_apply().
1.5.8