xref: /third_party/ffmpeg/libavcodec/dcadsp.h (revision cabdff1a) 
1/*
2 * Copyright (C) 2016 foo86
3 *
4 * This file is part of FFmpeg.
5 *
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.
10 *
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.
15 *
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
19 */
20
21#ifndef AVCODEC_DCADSP_H
22#define AVCODEC_DCADSP_H
23
24#include "libavutil/common.h"
25
26#include "fft.h"
27#include "dcadct.h"
28#include "synth_filter.h"
29
30typedef struct DCADSPContext {
31    void (*decode_hf)(int32_t **dst,
32                      const int32_t *vq_index,
33                      const int8_t hf_vq[1024][32],
34                      int32_t scale_factors[32][2],
35                      ptrdiff_t sb_start, ptrdiff_t sb_end,
36                      ptrdiff_t ofs, ptrdiff_t len);
37
38    void (*decode_joint)(int32_t **dst, int32_t **src,
39                         const int32_t *scale_factors,
40                         ptrdiff_t sb_start, ptrdiff_t sb_end,
41                         ptrdiff_t ofs, ptrdiff_t len);
42
43    void (*lfe_fir_float[2])(float *pcm_samples, int32_t *lfe_samples,
44                             const float *filter_coeff, ptrdiff_t npcmblocks);
45
46    void (*lfe_x96_float)(float *dst, const float *src,
47                          float *hist, ptrdiff_t len);
48
49    void (*sub_qmf_float[2])(SynthFilterContext *synth,
50                             FFTContext *imdct,
51                             float *pcm_samples,
52                             int32_t **subband_samples_lo,
53                             int32_t **subband_samples_hi,
54                             float *hist1, int *offset, float *hist2,
55                             const float *filter_coeff, ptrdiff_t npcmblocks,
56                             float scale);
57
58    void (*lfe_fir_fixed)(int32_t *pcm_samples, int32_t *lfe_samples,
59                          const int32_t *filter_coeff, ptrdiff_t npcmblocks);
60
61    void (*lfe_x96_fixed)(int32_t *dst, const int32_t *src,
62                          int32_t *hist, ptrdiff_t len);
63
64    void (*sub_qmf_fixed[2])(SynthFilterContext *synth,
65                             DCADCTContext *imdct,
66                             int32_t *pcm_samples,
67                             int32_t **subband_samples_lo,
68                             int32_t **subband_samples_hi,
69                             int32_t *hist1, int *offset, int32_t *hist2,
70                             const int32_t *filter_coeff, ptrdiff_t npcmblocks);
71
72    void (*decor)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
73
74    void (*dmix_sub_xch)(int32_t *dst1, int32_t *dst2,
75                         const int32_t *src, ptrdiff_t len);
76
77    void (*dmix_sub)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
78
79    void (*dmix_add)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
80
81    void (*dmix_scale)(int32_t *dst, int scale, ptrdiff_t len);
82
83    void (*dmix_scale_inv)(int32_t *dst, int scale_inv, ptrdiff_t len);
84
85    void (*assemble_freq_bands)(int32_t *dst, int32_t *src0, int32_t *src1,
86                                const int32_t *coeff, ptrdiff_t len);
87
88    void (*lbr_bank)(float output[32][4], float **input,
89                     const float *coeff, ptrdiff_t ofs, ptrdiff_t len);
90
91    void (*lfe_iir)(float *output, const float *input,
92                    const float iir[5][4], float hist[5][2],
93                    ptrdiff_t factor);
94} DCADSPContext;
95
96av_cold void ff_dcadsp_init(DCADSPContext *s);
97av_cold void ff_dcadsp_init_x86(DCADSPContext *s);
98
99#endif
100