2 * Copyright (c) 2012 Mans Rullgard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef AVCODEC_SBRDSP_H
22 #define AVCODEC_SBRDSP_H
26 typedef struct SBRDSPContext
{
27 void (*sum64x5
)(float *z
);
28 float (*sum_square
)(float (*x
)[2], int n
);
29 void (*neg_odd_64
)(float *x
);
30 void (*qmf_pre_shuffle
)(float *z
);
31 void (*qmf_post_shuffle
)(float W
[32][2], const float *z
);
32 void (*qmf_deint_neg
)(float *v
, const float *src
);
33 void (*qmf_deint_bfly
)(float *v
, const float *src0
, const float *src1
);
34 void (*autocorrelate
)(const float x
[40][2], float phi
[3][2][2]);
35 void (*hf_gen
)(float (*X_high
)[2], const float (*X_low
)[2],
36 const float alpha0
[2], const float alpha1
[2],
37 float bw
, int start
, int end
);
38 void (*hf_g_filt
)(float (*Y
)[2], const float (*X_high
)[40][2],
39 const float *g_filt
, int m_max
, intptr_t ixh
);
40 void (*hf_apply_noise
[4])(float (*Y
)[2], const float *s_m
,
41 const float *q_filt
, int noise
,
45 extern const float ff_sbr_noise_table
[][2];
47 void ff_sbrdsp_init(SBRDSPContext
*s
);
48 void ff_sbrdsp_init_arm(SBRDSPContext
*s
);
49 void ff_sbrdsp_init_x86(SBRDSPContext
*s
);
50 void ff_sbrdsp_init_mips(SBRDSPContext
*s
);
52 #endif /* AVCODEC_SBRDSP_H */