/*
 * This program reads a single frame (the first one) from an AMR *.cod file,
 * enforces that this frame is MR122 speech, and emits the frame of 244 bits
 * as comma-separated ASCII.  The intent is to extract the DHF in a form
 * convenient for inclusion in amrdiff source.
 */

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "amr_defs.h"

main(argc, argv)
	char **argv;
{
	char *filename;
	int bigend, rc;
	FILE *inf;
	uint8_t amr_bits[COD_FORMAT_NWORDS];

	if (argc != 3) {
usage:		fprintf(stderr, "usage: %s amr-cod-file be|le\n", argv[0]);
		exit(1);
	}
	filename = argv[1];
	if (!strcmp(argv[2], "be"))
		bigend = 1;
	else if (!strcmp(argv[2], "le"))
		bigend = 0;
	else
		goto usage;
	inf = fopen(filename, "r");
	if (!inf) {
		perror(filename);
		exit(1);
	}
	rc = read_etsi_bits(inf, bigend, amr_bits, COD_FORMAT_NWORDS, filename);
	if (!rc) {
		fprintf(stderr, "error: %s is empty\n", filename);
		exit(1);
	}
	if (amr_bits[0] != TX_SPEECH_GOOD || amr_bits[245] != MR122) {
		fprintf(stderr, "error: frame type is wrong\n");
		exit(1);
	}
	emit_frame244(amr_bits + 1);
	exit(0);
}