diff options
Diffstat (limited to 'libavcodec/sbr.h')
| -rw-r--r-- | libavcodec/sbr.h | 38 |
1 files changed, 31 insertions, 7 deletions
diff --git a/libavcodec/sbr.h b/libavcodec/sbr.h index a47ad6eedb..e28fccda09 100644 --- a/libavcodec/sbr.h +++ b/libavcodec/sbr.h @@ -3,20 +3,20 @@ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl ) * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -34,6 +34,8 @@ #include "aacps.h" #include "sbrdsp.h" +typedef struct AACContext AACContext; + /** * Spectral Band Replication header - spectrum parameters that invoke a reset if they differ from the previous header. */ @@ -108,10 +110,31 @@ typedef struct SBRData { /** @} */ } SBRData; +typedef struct SpectralBandReplication SpectralBandReplication; + +/** + * aacsbr functions pointers + */ +typedef struct AACSBRContext { + int (*sbr_lf_gen)(AACContext *ac, SpectralBandReplication *sbr, + float X_low[32][40][2], const float W[2][32][32][2], + int buf_idx); + void (*sbr_hf_assemble)(float Y1[38][64][2], + const float X_high[64][40][2], + SpectralBandReplication *sbr, SBRData *ch_data, + const int e_a[2]); + int (*sbr_x_gen)(SpectralBandReplication *sbr, float X[2][38][64], + const float Y0[38][64][2], const float Y1[38][64][2], + const float X_low[32][40][2], int ch); + void (*sbr_hf_inverse_filter)(SBRDSPContext *dsp, + float (*alpha0)[2], float (*alpha1)[2], + const float X_low[32][40][2], int k0); +} AACSBRContext; + /** * Spectral Band Replication */ -typedef struct SpectralBandReplication { +struct SpectralBandReplication { int sample_rate; int start; int reset; @@ -153,7 +176,7 @@ typedef struct SpectralBandReplication { ///Frequency borders for noise floors uint16_t f_tablenoise[6]; ///Frequency borders for the limiter - uint16_t f_tablelim[29]; + uint16_t f_tablelim[30]; unsigned num_patches; uint8_t patch_num_subbands[6]; uint8_t patch_start_subband[6]; @@ -184,6 +207,7 @@ typedef struct SpectralBandReplication { FFTContext mdct_ana; FFTContext mdct; SBRDSPContext dsp; -} SpectralBandReplication; + AACSBRContext c; +}; #endif /* AVCODEC_SBR_H */ |