/*
 * The code in this module takes linear_input_array[] from gen160.c
 * and generates EFR-format frames by way of libtwamr encoder.
 * This version does a second frame pass on offsets 120-159.
 */

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <gsm_efr.h>
#include <tw_amr.h>

extern uint16_t linear_input_array[480];

uint8_t amr_efr[160][31];

void
generate_amr_efr(void)
{
	struct amr_encoder_state *st;
	struct amr_param_frame amr_frame;
	unsigned m;

	st = amr_encoder_create(0, 0);
	if (!st) {
		fprintf(stderr, "error: amr_encoder_create() failed\n");
		exit(1);
	}
	for (m = 0; m < 160; m++) {
		amr_encoder_reset(st, 0, 0);
		amr_encode_frame(st, MR122,
				 (const int16_t *) linear_input_array + 160 - m,
				 &amr_frame);
		if (m >= 120) {
			if (bcmp(amr_frame.param, amr_dhf_mr122,
				 EFR_NUM_PARAMS * sizeof(int16_t))) {
				fprintf(stderr,
			"MR122 DHF check failed on AMR-EFR first frame #%u\n",
					m);
				exit(1);
			}
			amr_encode_frame(st, MR122,
				(const int16_t *) linear_input_array + 320 - m,
				 &amr_frame);
		}
		EFR_params2frame(amr_frame.param, amr_efr[m]);
	}
	free(st);
}