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dcadsp.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_DCADSP_H
20 #define AVCODEC_DCADSP_H
21 
22 #include "avfft.h"
23 #include "synth_filter.h"
24 
25 #define DCA_SUBBANDS 64
26 
27 typedef struct DCADSPContext {
28  void (*lfe_fir[2])(float *out, const float *in, const float *coefs);
29  void (*qmf_32_subbands)(float samples_in[32][8], int sb_act,
30  SynthFilterContext *synth, FFTContext *imdct,
31  float synth_buf_ptr[512],
32  int *synth_buf_offset, float synth_buf2[32],
33  const float window[512], float *samples_out,
34  float raXin[32], float scale);
35  void (*decode_hf)(float dst[DCA_SUBBANDS][8],
36  const int32_t vq_num[DCA_SUBBANDS],
37  const int8_t hf_vq[1024][32], intptr_t vq_offset,
38  int32_t scale[DCA_SUBBANDS][2],
39  intptr_t start, intptr_t end);
41 
45 
46 #endif /* AVCODEC_DCADSP_H */