/*
 * The function implemented in this module examines a frame of 22 int16_t words
 * that corresponds to GSM-HR decoder input format, and checks if the unused
 * upper bits of each int16_t word are cleared as they should be.
 * This function should be used when reading from ETSI-format *.dec files,
 * to guard against reading garbage or wrong endian.
 */

#include <stdint.h>
#include "tw_gsmhr.h"

int gsmhr_check_decoder_params(const int16_t *params)
{
	if (params[18] < 0 || params[18] > 2)	/* BFI */
		return -1;
	if (params[19] < 0 || params[19] > 1)	/* UFI */
		return -1;
	if (params[20] < 0 || params[20] > 2)	/* SID */
		return -1;
	if (params[21] < 0 || params[21] > 1)	/* TAF */
		return -1;
	return gsmhr_check_common_params(params);
}