/*
 * This file is the main module for gsmfr-encode utility.
 */

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <gsm.h>
#include "../libtest/wavreader.h"
#include "../libtest/wavrdhelp.h"

main(argc, argv)
	char **argv;
{
	void *wav;
	FILE *binf;
	gsm enc_state;
	int16_t pcm[160];
	uint8_t frame[33];
	int rc;

	if (argc != 3) {
		fprintf(stderr, "usage: %s input.wav output.gsm\n", argv[0]);
		exit(1);
	}
	wav = wav_read_open(argv[1]);
	if (!wav) {
		perror(argv[1]);
		exit(1);
	}
	rc = wavrd_check_header(wav, argv[1]);
	if (rc < 0)
		exit(1);	/* error msg already printed */
	binf = fopen(argv[2], "w");
	if (!binf) {
		perror(argv[2]);
		exit(1);
	}
	enc_state = gsm_create();
	if (!enc_state) {
		fprintf(stderr, "gsm_create() failed!\n");
		exit(1);
	}
	for (;;) {
		rc = wavrd_get_pcm_block(wav, pcm);
		if (!rc)
			break;
		gsm_encode(enc_state, pcm, frame);
		fwrite(frame, 1, sizeof frame, binf);
	}
	fclose(binf);
	exit(0);
}