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libavcodec/aacsbr.h

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00001 /*
00002  * AAC Spectral Band Replication function declarations
00003  * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
00004  * Copyright (c) 2010      Alex Converse <alex.converse@gmail.com>
00005  *
00006  * This file is part of FFmpeg.
00007  *
00008  * FFmpeg is free software; you can redistribute it and/or
00009  * modify it under the terms of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation; either
00011  * version 2.1 of the License, or (at your option) any later version.
00012  *
00013  * FFmpeg is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016  * Lesser General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with FFmpeg; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  */
00022 
00029 #ifndef AVCODEC_AACSBR_H
00030 #define AVCODEC_AACSBR_H
00031 
00032 #include "get_bits.h"
00033 #include "aac.h"
00034 #include "sbr.h"
00035 
00037 av_cold void ff_aac_sbr_init(void);
00039 av_cold void ff_aac_sbr_ctx_init(SpectralBandReplication *sbr);
00041 av_cold void ff_aac_sbr_ctx_close(SpectralBandReplication *sbr);
00043 int ff_decode_sbr_extension(AACContext *ac, SpectralBandReplication *sbr,
00044                             GetBitContext *gb, int crc, int cnt, int id_aac);
00046 void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
00047                   float* L, float *R);
00048 
00049 #endif /* AVCODEC_AACSBR_H */

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