#include <sbr.h>
Data Fields | |
| int | sample_rate |
| int | start |
| int | reset |
| SpectrumParameters | spectrum_params |
| int | bs_amp_res_header |
| 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 | kx_and_m_pushed |
| 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 |
| SBRDSPContext | dsp |
Variables associated with bs_header_extra_2 | |
| unsigned | bs_limiter_bands |
| unsigned | bs_limiter_gains |
| unsigned | bs_interpol_freq |
| unsigned | bs_smoothing_mode |
Definition at line 114 of file sbr.h.
| float SpectralBandReplication::alpha0[64][2] |
Zeroth coefficient used to filter the subband signals.
Definition at line 167 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 169 of file sbr.h.
Referenced by ff_sbr_apply().
| unsigned SpectralBandReplication::bs_coupling |
Definition at line 129 of file sbr.h.
Referenced by read_sbr_channel_pair_element(), read_sbr_envelope(), read_sbr_noise(), and sbr_dequant().
Definition at line 139 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(), sbr_turnoff(), and sbr_x_gen().
Definition at line 186 of file sbr.h.
Referenced by ff_aac_sbr_ctx_init(), ff_sbr_apply(), sbr_env_estimate(), sbr_hf_assemble(), and sbr_hf_gen().
| float SpectralBandReplication::e_curr[7][48] |
Estimated envelope.
Definition at line 177 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 171 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 148 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 152 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 156 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 150 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 154 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 130 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 133 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(), sbr_turnoff(), 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 135 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(), sbr_turnoff(), and sbr_x_gen().
Definition at line 185 of file sbr.h.
Referenced by ff_aac_sbr_ctx_close(), ff_aac_sbr_ctx_init(), and ff_sbr_apply().
Definition at line 184 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 142 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 146 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 138 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 144 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 157 of file sbr.h.
Referenced by sbr_hf_calc_npatches(), sbr_hf_gen(), and sbr_make_f_tablelim().
Definition at line 158 of file sbr.h.
Referenced by sbr_hf_calc_npatches(), sbr_hf_gen(), and sbr_make_f_tablelim().
Definition at line 140 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 179 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 173 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_mapping().
| float SpectralBandReplication::qmf_filter_scratch[5][64] |
Definition at line 117 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 181 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_hf_assemble().
Sinusoidal presence, remapped.
Definition at line 175 of file sbr.h.
Referenced by sbr_gain_calc(), and sbr_mapping().
Definition at line 115 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 118 of file sbr.h.
Referenced by read_sbr_header(), sbr_make_f_derived(), sbr_make_f_master(), sbr_reset(), and sbr_turnoff().
Definition at line 116 of file sbr.h.
Referenced by ff_decode_sbr_extension(), ff_sbr_apply(), read_sbr_header(), and sbr_turnoff().
| float SpectralBandReplication::X[2][2][38][64] |
QMF values of the reconstructed signal.
Definition at line 165 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 161 of file sbr.h.
Referenced by ff_sbr_apply().
1.5.8