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96 lines
No EOL
4 KiB
C
96 lines
No EOL
4 KiB
C
/* Copyright (c) 2022 Amazon
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Written by Jan Buethe */
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "dred_rdovae_dec.h"
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#include "dred_rdovae_constants.h"
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void dred_rdovae_dec_init_states(
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RDOVAEDec *h, /* io: state buffer handle */
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const float *initial_state /* i: initial state */
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)
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{
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/* initialize GRU states from initial state */
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_lpcnet_compute_dense(&state1, h->dense2_state, initial_state);
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_lpcnet_compute_dense(&state2, h->dense4_state, initial_state);
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_lpcnet_compute_dense(&state3, h->dense6_state, initial_state);
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}
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void dred_rdovae_decode_qframe(
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RDOVAEDec *dec_state, /* io: state buffer handle */
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float *qframe, /* o: quadruple feature frame (four concatenated frames in reverse order) */
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const float *input /* i: latent vector */
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)
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{
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float buffer[DEC_DENSE1_OUT_SIZE + DEC_DENSE2_OUT_SIZE + DEC_DENSE3_OUT_SIZE + DEC_DENSE4_OUT_SIZE + DEC_DENSE5_OUT_SIZE + DEC_DENSE6_OUT_SIZE + DEC_DENSE7_OUT_SIZE + DEC_DENSE8_OUT_SIZE];
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int output_index = 0;
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int input_index = 0;
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float zero_vector[1024] = {0};
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/* run encoder stack and concatenate output in buffer*/
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_lpcnet_compute_dense(&dec_dense1, &buffer[output_index], input);
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input_index = output_index;
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output_index += DEC_DENSE1_OUT_SIZE;
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compute_gruB(&dec_dense2, zero_vector, dec_state->dense2_state, &buffer[input_index]);
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memcpy(&buffer[output_index], dec_state->dense2_state, DEC_DENSE2_OUT_SIZE * sizeof(float));
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input_index = output_index;
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output_index += DEC_DENSE2_OUT_SIZE;
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_lpcnet_compute_dense(&dec_dense3, &buffer[output_index], &buffer[input_index]);
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input_index = output_index;
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output_index += DEC_DENSE3_OUT_SIZE;
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compute_gruB(&dec_dense4, zero_vector, dec_state->dense4_state, &buffer[input_index]);
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memcpy(&buffer[output_index], dec_state->dense4_state, DEC_DENSE4_OUT_SIZE * sizeof(float));
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input_index = output_index;
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output_index += DEC_DENSE4_OUT_SIZE;
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_lpcnet_compute_dense(&dec_dense5, &buffer[output_index], &buffer[input_index]);
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input_index = output_index;
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output_index += DEC_DENSE5_OUT_SIZE;
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compute_gruB(&dec_dense6, zero_vector, dec_state->dense6_state, &buffer[input_index]);
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memcpy(&buffer[output_index], dec_state->dense6_state, DEC_DENSE6_OUT_SIZE * sizeof(float));
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input_index = output_index;
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output_index += DEC_DENSE6_OUT_SIZE;
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_lpcnet_compute_dense(&dec_dense7, &buffer[output_index], &buffer[input_index]);
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input_index = output_index;
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output_index += DEC_DENSE7_OUT_SIZE;
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_lpcnet_compute_dense(&dec_dense8, &buffer[output_index], &buffer[input_index]);
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output_index += DEC_DENSE8_OUT_SIZE;
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_lpcnet_compute_dense(&dec_final, qframe, buffer);
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} |