1 /* Copyright (c) 2022 Amazon 2 Written by Jan Buethe */ 3 /* 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions 6 are met: 7 8 - Redistributions of source code must retain the above copyright 9 notice, this list of conditions and the following disclaimer. 10 11 - Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in the 13 documentation and/or other materials provided with the distribution. 14 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef DRED_ENCODER_H 29 #define DRED_ENCODER_H 30 31 #include "lpcnet.h" 32 #include "dred_config.h" 33 #include "dred_rdovae.h" 34 #include "entcode.h" 35 #include "lpcnet_private.h" 36 #include "dred_rdovae_enc.h" 37 #include "dred_rdovae_enc_data.h" 38 39 #define RESAMPLING_ORDER 8 40 41 typedef struct { 42 RDOVAEEnc model; 43 LPCNetEncState lpcnet_enc_state; 44 RDOVAEEncState rdovae_enc; 45 int loaded; 46 opus_int32 Fs; 47 int channels; 48 49 #define DREDENC_RESET_START input_buffer 50 float input_buffer[2*DRED_DFRAME_SIZE]; 51 int input_buffer_fill; 52 int dred_offset; 53 int latent_offset; 54 int last_extra_dred_offset; 55 float latents_buffer[DRED_MAX_FRAMES * DRED_LATENT_DIM]; 56 int latents_buffer_fill; 57 float state_buffer[DRED_MAX_FRAMES * DRED_STATE_DIM]; 58 float resample_mem[RESAMPLING_ORDER + 1]; 59 } DREDEnc; 60 61 int dred_encoder_load_model(DREDEnc* enc, const void *data, int len); 62 void dred_encoder_init(DREDEnc* enc, opus_int32 Fs, int channels); 63 void dred_encoder_reset(DREDEnc* enc); 64 65 void dred_deinit_encoder(DREDEnc *enc); 66 67 void dred_compute_latents(DREDEnc *enc, const float *pcm, int frame_size, int extra_delay, int arch); 68 69 int dred_encode_silk_frame(DREDEnc *enc, unsigned char *buf, int max_chunks, int max_bytes, int q0, int dQ, int qmax, unsigned char *activity_mem, int arch); 70 71 #endif 72