| 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); |
| 40 | } DCADSPContext; |
| 41 | |
| 42 | void ff_dcadsp_init(DCADSPContext *s); |
| 43 | void ff_dcadsp_init_arm(DCADSPContext *s); |
| 44 | void ff_dcadsp_init_x86(DCADSPContext *s); |
| 45 | |
| 46 | #endif /* AVCODEC_DCADSP_H */ |