linux/drivers/isdn/mISDN/dsp_ecdis.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * SpanDSP - a series of DSP components for telephony
 *
 * ec_disable_detector.h - A detector which should eventually meet the
 *                         G.164/G.165 requirements for detecting the
 *                         2100Hz echo cancellor disable tone.
 *
 * Written by Steve Underwood <[email protected]>
 *
 * Copyright (C) 2001 Steve Underwood
 *
 * All rights reserved.
 */

#include "dsp_biquad.h"

struct ec_disable_detector_state { … };


#define FALSE …
#define TRUE …

static inline void
echo_can_disable_detector_init(struct ec_disable_detector_state *det)
{ … }
/*- End of function --------------------------------------------------------*/

static inline int
echo_can_disable_detector_update(struct ec_disable_detector_state *det,
				 int16_t amp)
{ … }
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/