avcodec/aacdec_fixed: fix invalid shift in predict()
[ffmpeg.git] / libavcodec / synth_filter.h
1 /*
2  * copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at>
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_SYNTH_FILTER_H
22 #define AVCODEC_SYNTH_FILTER_H
23
24 #include "fft.h"
25 #include "dcadct.h"
26
27 typedef struct SynthFilterContext {
28     void (*synth_filter_float)(FFTContext *imdct,
29                                float *synth_buf_ptr, int *synth_buf_offset,
30                                float synth_buf2[32], const float window[512],
31                                float out[32], const float in[32],
32                                float scale);
33     void (*synth_filter_float_64)(FFTContext *imdct,
34                                   float *synth_buf_ptr, int *synth_buf_offset,
35                                   float synth_buf2[64], const float window[1024],
36                                   float out[64], const float in[64], float scale);
37     void (*synth_filter_fixed)(DCADCTContext *imdct,
38                                int32_t *synth_buf_ptr, int *synth_buf_offset,
39                                int32_t synth_buf2[32], const int32_t window[512],
40                                int32_t out[32], const int32_t in[32]);
41     void (*synth_filter_fixed_64)(DCADCTContext *imdct,
42                                   int32_t *synth_buf_ptr, int *synth_buf_offset,
43                                   int32_t synth_buf2[64], const int32_t window[1024],
44                                   int32_t out[64], const int32_t in[64]);
45 } SynthFilterContext;
46
47 void ff_synth_filter_init(SynthFilterContext *c);
48 void ff_synth_filter_init_aarch64(SynthFilterContext *c);
49 void ff_synth_filter_init_arm(SynthFilterContext *c);
50 void ff_synth_filter_init_x86(SynthFilterContext *c);
51
52 #endif /* AVCODEC_SYNTH_FILTER_H */