mirror of
https://github.com/xiph/opus.git
synced 2025-05-14 23:48:28 +00:00
83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/* Copyright (c) 2023 Amazon */
|
|
/*
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
- Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
|
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef FWGAN_H
|
|
#define FWGAN_H
|
|
|
|
#include "freq.h"
|
|
#include "fwgan_data.h"
|
|
|
|
#define FWGAN_CONT_SAMPLES 320
|
|
#define NB_SUBFRAMES 4
|
|
#define SUBFRAME_SIZE 40
|
|
#define FWGAN_FRAME_SIZE (NB_SUBFRAMES*SUBFRAME_SIZE)
|
|
#define CONT_PCM_INPUTS 320
|
|
#define MAX_CONT_SIZE CONT_NET_0_OUT_SIZE
|
|
#define FWGAN_GAMMA 0.92f
|
|
#define FWGAN_DEEMPHASIS 0.85f
|
|
|
|
/* FIXME: Derive those from the model rather than hardcoding. */
|
|
#define FWC1_STATE_SIZE 512
|
|
#define FWC2_STATE_SIZE 512
|
|
#define FWC3_STATE_SIZE 256
|
|
#define FWC4_STATE_SIZE 256
|
|
#define FWC5_STATE_SIZE 128
|
|
#define FWC6_STATE_SIZE 128
|
|
#define FWC7_STATE_SIZE 80
|
|
|
|
typedef struct {
|
|
FWGAN model;
|
|
int arch;
|
|
int cont_initialized;
|
|
float embed_phase[2];
|
|
float last_gain;
|
|
float last_lpc[LPC_ORDER];
|
|
float syn_mem[LPC_ORDER];
|
|
float preemph_mem;
|
|
float deemph_mem;
|
|
float pcm_buf[FWGAN_FRAME_SIZE];
|
|
float cont[CONT_NET_10_OUT_SIZE];
|
|
float cont_conv1_mem[FEAT_IN_CONV1_CONV_STATE_SIZE];
|
|
float rnn_state[RNN_GRU_STATE_SIZE];
|
|
float fwc1_state[FWC1_STATE_SIZE];
|
|
float fwc2_state[FWC2_STATE_SIZE];
|
|
float fwc3_state[FWC3_STATE_SIZE];
|
|
float fwc4_state[FWC4_STATE_SIZE];
|
|
float fwc5_state[FWC5_STATE_SIZE];
|
|
float fwc6_state[FWC6_STATE_SIZE];
|
|
float fwc7_state[FWC7_STATE_SIZE];
|
|
} FWGANState;
|
|
|
|
void fwgan_init(FWGANState *st);
|
|
int fwgan_load_model(FWGANState *st, const unsigned char *data, int len);
|
|
|
|
void fwgan_cont(FWGANState *st, const float *pcm0, const float *features0);
|
|
|
|
void fwgan_synthesize(FWGANState *st, float *pcm, const float *features);
|
|
void fwgan_synthesize_int(FWGANState *st, opus_int16 *pcm, const float *features);
|
|
|
|
|
|
#endif /* FWGAN_H */
|