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/*
** Copyright 2003-2010, VisualOn, Inc.
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
/***********************************************************************
* File: homing.c *
* *
* Description:Performs the homing routines *
* *
************************************************************************/
#include "typedef.h"
#include "cnst.h"
#include "basic_op.h"
#include "bits.h"
#include "homing.tab"
Word16 encoder_homing_frame_test(Word16 input_frame[])
{
Word32 i;
Word16 j = 0;
/* check 320 input samples for matching EHF_MASK: defined in e_homing.h */
for (i = 0; i < L_FRAME16k; i++)
{
j = (Word16) (input_frame[i] ^ EHF_MASK);
if (j)
break;
}
return (Word16) (!j);
}
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