189 lines
4.6 KiB
C
189 lines
4.6 KiB
C
/* $Id$ */
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/*
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* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
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* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __AUDIODEV_IMP_H__
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#define __AUDIODEV_IMP_H__
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#include <pjmedia-audiodev/audiodev.h>
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/**
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* @defgroup s8_audio_device_implementors_api Audio Device Implementors API
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* @ingroup audio_device_api
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* @brief API for audio device implementors
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* @{
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*/
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/**
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* Sound device factory operations.
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*/
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typedef struct pjmedia_aud_dev_factory_op
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{
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/**
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* Initialize the audio device factory.
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*
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* @param f The audio device factory.
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*/
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pj_status_t (*init)(pjmedia_aud_dev_factory *f);
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/**
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* Close this audio device factory and release all resources back to the
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* operating system.
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*
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* @param f The audio device factory.
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*/
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pj_status_t (*destroy)(pjmedia_aud_dev_factory *f);
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/**
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* Get the number of audio devices installed in the system.
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*
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* @param f The audio device factory.
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*/
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unsigned (*get_dev_count)(pjmedia_aud_dev_factory *f);
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/**
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* Get the audio device information and capabilities.
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*
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* @param f The audio device factory.
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* @param index Device index.
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* @param info The audio device information structure which will be
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* initialized by this function once it returns
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* successfully.
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*/
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pj_status_t (*get_dev_info)(pjmedia_aud_dev_factory *f,
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unsigned index,
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pjmedia_aud_dev_info *info);
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/**
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* Initialize the specified audio device parameter with the default
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* values for the specified device.
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*
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* @param f The audio device factory.
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* @param index Device index.
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* @param param The audio device parameter.
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*/
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pj_status_t (*default_param)(pjmedia_aud_dev_factory *f,
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unsigned index,
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pjmedia_aud_param *param);
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/**
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* Open the audio device and create audio stream. See
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* #pjmedia_aud_stream_create()
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*/
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pj_status_t (*create_stream)(pjmedia_aud_dev_factory *f,
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const pjmedia_aud_param *param,
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pjmedia_aud_rec_cb rec_cb,
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pjmedia_aud_play_cb play_cb,
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void *user_data,
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pjmedia_aud_stream **p_aud_strm);
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/**
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* Refresh the list of audio devices installed in the system.
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*
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* @param f The audio device factory.
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*/
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pj_status_t (*refresh)(pjmedia_aud_dev_factory *f);
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} pjmedia_aud_dev_factory_op;
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/**
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* This structure describes an audio device factory.
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*/
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struct pjmedia_aud_dev_factory
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{
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/** Internal data to be initialized by audio subsystem. */
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struct {
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/** Driver index */
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unsigned drv_idx;
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} sys;
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/** Operations */
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pjmedia_aud_dev_factory_op *op;
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};
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/**
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* Sound stream operations.
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*/
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typedef struct pjmedia_aud_stream_op
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{
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/**
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* See #pjmedia_aud_stream_get_param()
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*/
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pj_status_t (*get_param)(pjmedia_aud_stream *strm,
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pjmedia_aud_param *param);
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/**
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* See #pjmedia_aud_stream_get_cap()
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*/
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pj_status_t (*get_cap)(pjmedia_aud_stream *strm,
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pjmedia_aud_dev_cap cap,
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void *value);
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/**
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* See #pjmedia_aud_stream_set_cap()
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*/
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pj_status_t (*set_cap)(pjmedia_aud_stream *strm,
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pjmedia_aud_dev_cap cap,
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const void *value);
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/**
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* See #pjmedia_aud_stream_start()
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*/
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pj_status_t (*start)(pjmedia_aud_stream *strm);
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/**
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* See #pjmedia_aud_stream_stop().
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*/
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pj_status_t (*stop)(pjmedia_aud_stream *strm);
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/**
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* See #pjmedia_aud_stream_destroy().
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*/
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pj_status_t (*destroy)(pjmedia_aud_stream *strm);
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} pjmedia_aud_stream_op;
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/**
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* This structure describes the audio device stream.
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*/
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struct pjmedia_aud_stream
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{
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/** Internal data to be initialized by audio subsystem */
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struct {
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/** Driver index */
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unsigned drv_idx;
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} sys;
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/** Operations */
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pjmedia_aud_stream_op *op;
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};
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/**
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* @}
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*/
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#endif /* __AUDIODEV_IMP_H__ */
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