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/* $Id: audiotest.h 3553 2011-05-05 06:14:19Z nanang $ */
/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJMEDIA_AUDIODEV_AUDIOTEST_H__
#define __PJMEDIA_AUDIODEV_AUDIOTEST_H__
/**
* @file audiotest.h
* @brief Audio test utility.
*/
#include <pjmedia-audiodev/audiodev.h>
PJ_BEGIN_DECL
/**
* @defgroup s30_audio_test_utility Audio tests utility.
* @ingroup audio_device_api
* @brief Audio test utility.
* @{
*/
/**
* Statistic for each direction.
*/
typedef struct pjmedia_aud_test_stat
{
/**
* Number of frames processed during the test.
*/
unsigned frame_cnt;
/**
* Minimum inter-frame arrival time, in milliseconds
*/
unsigned min_interval;
/**
* Maximum inter-frame arrival time, in milliseconds
*/
unsigned max_interval;
/**
* Average inter-frame arrival time, in milliseconds
*/
unsigned avg_interval;
/**
* Standard deviation of inter-frame arrival time, in milliseconds
*/
unsigned dev_interval;
/**
* Maximum number of frame burst
*/
unsigned max_burst;
} pjmedia_aud_test_stat;
/**
* Test results.
*/
typedef struct pjmedia_aud_test_results
{
/**
* Recording statistic.
*/
pjmedia_aud_test_stat rec;
/**
* Playback statistic.
*/
pjmedia_aud_test_stat play;
/**
* Clock drifts per second, in samples. Positive number indicates rec
* device is running faster than playback device.
*/
pj_int32_t rec_drift_per_sec;
} pjmedia_aud_test_results;
/**
* Perform audio device testing.
*/
PJ_DECL(pj_status_t) pjmedia_aud_test(const pjmedia_aud_param *param,
pjmedia_aud_test_results *result);
/**
* @}
*/
PJ_END_DECL
#endif /* __PJMEDIA_AUDIODEV_AUDIOTEST_H__ */
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