view libgsmhr1/paramval_cod.c @ 522:4d2cccaeb4a7

libtest: implement TW-TS-005 reader function Spec reference: https://www.freecalypso.org/specs/tw-ts-005-v010002.txt
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 19 Sep 2024 03:08:47 +0000
parents 03a40ac2e931
children
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/*
 * The function implemented in this module examines a frame of 20 int16_t words
 * that corresponds to GSM-HR encoder output 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 *.cod files,
 * to guard against reading garbage or wrong endian.
 */

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

int gsmhr_check_encoder_params(const int16_t *params)
{
	if (params[18] & 0xFFFE)
		return -1;
	if (params[19] & 0xFFFE)
		return -1;
	return gsmhr_check_common_params(params);
}