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52 lines
2.1 KiB
C
52 lines
2.1 KiB
C
/*
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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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