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68 lines
2.6 KiB
C
68 lines
2.6 KiB
C
/* Copyright (c) 2023 Amazon */
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef FARGAN_H
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#define FARGAN_H
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#include "freq.h"
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#include "fargan_data.h"
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#include "pitchdnn.h"
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#define FARGAN_CONT_SAMPLES 320
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#define FARGAN_NB_SUBFRAMES 4
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#define FARGAN_SUBFRAME_SIZE 40
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#define FARGAN_FRAME_SIZE (FARGAN_NB_SUBFRAMES*FARGAN_SUBFRAME_SIZE)
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#define FARGAN_COND_SIZE (COND_NET_FDENSE2_OUT_SIZE/FARGAN_NB_SUBFRAMES)
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#define FARGAN_DEEMPHASIS 0.85f
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#define SIG_NET_INPUT_SIZE (FARGAN_COND_SIZE+2*FARGAN_SUBFRAME_SIZE+4)
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#define SIG_NET_FWC0_STATE_SIZE (2*SIG_NET_INPUT_SIZE)
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#define FARGAN_MAX_RNN_NEURONS SIG_NET_GRU1_OUT_SIZE
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typedef struct {
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FARGAN model;
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int arch;
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int cont_initialized;
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float deemph_mem;
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float pitch_buf[PITCH_MAX_PERIOD];
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float cond_conv1_state[COND_NET_FCONV1_STATE_SIZE];
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float fwc0_mem[SIG_NET_FWC0_STATE_SIZE];
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float gru1_state[SIG_NET_GRU1_STATE_SIZE];
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float gru2_state[SIG_NET_GRU2_STATE_SIZE];
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float gru3_state[SIG_NET_GRU3_STATE_SIZE];
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int last_period;
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} FARGANState;
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void fargan_init(FARGANState *st);
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int fargan_load_model(FARGANState *st, const void *data, int len);
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void fargan_cont(FARGANState *st, const float *pcm0, const float *features0);
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void fargan_synthesize(FARGANState *st, float *pcm, const float *features);
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void fargan_synthesize_int(FARGANState *st, opus_int16 *pcm, const float *features);
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#endif /* FARGAN_H */
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