/* * AAC Spectral Band Replication function declarations * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl ) * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> * * This file is part of FFmpeg. * * 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. * * 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * AAC Spectral Band Replication function declarations * @author Robert Swain ( rob opendot cl ) */ #ifndef AVCODEC_AACSBR_H #define AVCODEC_AACSBR_H #include "get_bits.h" #include "aac.h" #include "sbr.h" /** Initialize SBR. */ av_cold void ff_aac_sbr_init(void); /** Initialize one SBR context. */ av_cold void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr); /** Close one SBR context. */ av_cold void ff_aac_sbr_ctx_close(SpectralBandReplication *sbr); /** Decode one SBR element. */ int ff_decode_sbr_extension(AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb, int crc, int cnt, int id_aac); /** Apply one SBR element to one AAC element. */ void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac, float* L, float *R); #endif /* AVCODEC_AACSBR_H */