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>
6 * This file is part of Libav.
8 * Libav 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.
13 * Libav 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.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with Libav; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * AAC Spectral Band Replication function declarations
26 * @author Robert Swain ( rob opendot cl )
29 #ifndef AVCODEC_AACSBR_H
30 #define AVCODEC_AACSBR_H
36 /** Initialize SBR. */
37 av_cold void ff_aac_sbr_init(void);
38 /** Initialize one SBR context. */
39 av_cold void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr);
40 /** Close one SBR context. */
41 av_cold 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,
49 #endif /* AVCODEC_AACSBR_H */