| 1 | /* |
| 2 | * AAC Spectral Band Replication function declarations |
| 3 | * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl ) |
| 4 | * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @file |
| 25 | * AAC Spectral Band Replication function declarations |
| 26 | * @author Robert Swain ( rob opendot cl ) |
| 27 | */ |
| 28 | |
| 29 | #ifndef AVCODEC_AACSBR_H |
| 30 | #define AVCODEC_AACSBR_H |
| 31 | |
| 32 | #include "get_bits.h" |
| 33 | #include "aac.h" |
| 34 | #include "sbr.h" |
| 35 | |
| 36 | /** Initialize SBR. */ |
| 37 | void ff_aac_sbr_init(void); |
| 38 | /** Initialize one SBR context. */ |
| 39 | void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr); |
| 40 | /** Close one SBR context. */ |
| 41 | void ff_aac_sbr_ctx_close(SpectralBandReplication *sbr); |
| 42 | /** Decode one SBR element. */ |
| 43 | int ff_decode_sbr_extension(AACContext *ac, SpectralBandReplication *sbr, |
| 44 | GetBitContext *gb, int crc, int cnt, int id_aac); |
| 45 | /** Apply one SBR element to one AAC element. */ |
| 46 | void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac, |
| 47 | float* L, float *R); |
| 48 | |
| 49 | void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c); |
| 50 | |
| 51 | #endif /* AVCODEC_AACSBR_H */ |