aacsbr.h
Go to the documentation of this file.
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. */
40 /** Close one SBR context. */
42 /** Decode one SBR element. */
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 
50 
51 #endif /* AVCODEC_AACSBR_H */
void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr)
Initialize one SBR context.
Definition: aacsbr.c:149
void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c)
Definition: aacsbr_mips.c:608
#define R
Definition: dsputil.c:2027
void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac, float *L, float *R)
Apply one SBR element to one AAC element.
Definition: aacsbr.c:1681
bitstream reader API header.
end end ac
void ff_aac_sbr_init(void)
Initialize SBR.
Definition: aacsbr.c:96
Spectral Band Replication definitions and structures.
void ff_aac_sbr_ctx_close(SpectralBandReplication *sbr)
Close one SBR context.
Definition: aacsbr.c:167
AAC definitions and structures.
#define L(x)
main AAC context
Definition: aac.h:262
int ff_decode_sbr_extension(AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb, int crc, int cnt, int id_aac)
Decode one SBR element.
Definition: aacsbr.c:1076
static double c[64]
aacsbr functions pointers
Definition: sbr.h:118
Spectral Band Replication.
Definition: sbr.h:137