2 * This file is part of FFmpeg.
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.
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.
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
19 #ifndef AVCODEC_DCADSP_H
20 #define AVCODEC_DCADSP_H
23 #include "synth_filter.h"
25 #define DCA_SUBBANDS 64
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
);
42 void ff_dcadsp_init(DCADSPContext
*s
);
43 void ff_dcadsp_init_arm(DCADSPContext
*s
);
44 void ff_dcadsp_init_x86(DCADSPContext
*s
);
46 #endif /* AVCODEC_DCADSP_H */