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51 lines
2.1 KiB
51 lines
2.1 KiB
/* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_DCADSP_H |
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#define AVCODEC_DCADSP_H |
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#include "avfft.h" |
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#include "synth_filter.h" |
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#define DCA_SUBBANDS_X96K 64 |
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#define DCA_SUBBANDS 32 |
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#define SAMPLES_PER_SUBBAND 8 // number of samples per subband per subsubframe |
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typedef struct DCADSPContext { |
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void (*lfe_fir[2])(float *out, const float *in, const float *coefs); |
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void (*qmf_32_subbands)(float samples_in[DCA_SUBBANDS][SAMPLES_PER_SUBBAND], int sb_act, |
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SynthFilterContext *synth, FFTContext *imdct, |
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float synth_buf_ptr[512], |
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int *synth_buf_offset, float synth_buf2[32], |
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const float window[512], float *samples_out, |
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float raXin[32], float scale); |
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void (*decode_hf)(int32_t dst[DCA_SUBBANDS][SAMPLES_PER_SUBBAND], |
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const int32_t vq_num[DCA_SUBBANDS], |
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const int8_t hf_vq[1024][32], intptr_t vq_offset, |
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int32_t scale[DCA_SUBBANDS][2], |
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intptr_t start, intptr_t end); |
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void (*dequantize)(int32_t *samples, uint32_t step_size, uint32_t scale); |
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} DCADSPContext; |
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void ff_dcadsp_init(DCADSPContext *s); |
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void ff_dcadsp_init_aarch64(DCADSPContext *s); |
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void ff_dcadsp_init_arm(DCADSPContext *s); |
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void ff_dcadsp_init_x86(DCADSPContext *s); |
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#endif /* AVCODEC_DCADSP_H */
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