129 lines
4.5 KiB
C
129 lines
4.5 KiB
C
/* Copyright (C) 2002 Jean-Marc Valin*/
|
|
/**
|
|
@file speex_callbacks.h
|
|
@brief Describes callback handling and in-band signalling
|
|
*/
|
|
/*
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
- Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
- Neither the name of the Xiph.org Foundation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#ifndef SPEEX_CALLBACKS_H
|
|
#define SPEEX_CALLBACKS_H
|
|
|
|
#include "speex.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** Total number of callbacks */
|
|
#define SPEEX_MAX_CALLBACKS 16
|
|
|
|
/* Describes all the in-band requests */
|
|
|
|
/*These are 1-bit requests*/
|
|
/** Request for perceptual enhancement (1 for on, 0 for off) */
|
|
#define SPEEX_INBAND_ENH_REQUEST 0
|
|
/** Reserved */
|
|
#define SPEEX_INBAND_RESERVED1 1
|
|
|
|
/*These are 4-bit requests*/
|
|
/** Request for a mode change */
|
|
#define SPEEX_INBAND_MODE_REQUEST 2
|
|
/** Request for a low mode change */
|
|
#define SPEEX_INBAND_LOW_MODE_REQUEST 3
|
|
/** Request for a high mode change */
|
|
#define SPEEX_INBAND_HIGH_MODE_REQUEST 4
|
|
/** Request for VBR (1 on, 0 off) */
|
|
#define SPEEX_INBAND_VBR_QUALITY_REQUEST 5
|
|
/** Request to be sent acknowledge */
|
|
#define SPEEX_INBAND_ACKNOWLEDGE_REQUEST 6
|
|
/** Request for VBR (1 for on, 0 for off) */
|
|
#define SPEEX_INBAND_VBR_REQUEST 7
|
|
|
|
/*These are 8-bit requests*/
|
|
/** Send a character in-band */
|
|
#define SPEEX_INBAND_CHAR 8
|
|
/** Intensity stereo information */
|
|
#define SPEEX_INBAND_STEREO 9
|
|
|
|
/*These are 16-bit requests*/
|
|
/** Transmit max bit-rate allowed */
|
|
#define SPEEX_INBAND_MAX_BITRATE 10
|
|
|
|
/*These are 32-bit requests*/
|
|
/** Acknowledge packet reception */
|
|
#define SPEEX_INBAND_ACKNOWLEDGE 12
|
|
|
|
/** Callback function type */
|
|
typedef int (*speex_callback_func)(SpeexBits *bits, void *state, void *data);
|
|
|
|
/** Callback information */
|
|
typedef struct SpeexCallback {
|
|
int callback_id; /**< ID associated to the callback */
|
|
speex_callback_func func; /**< Callback handler function */
|
|
void *data; /**< Data that will be sent to the handler */
|
|
void *reserved1; /**< Reserved for future use */
|
|
int reserved2; /**< Reserved for future use */
|
|
} SpeexCallback;
|
|
|
|
/** Handle in-band request */
|
|
int speex_inband_handler(SpeexBits *bits, SpeexCallback *callback_list, void *state);
|
|
|
|
/** Standard handler for mode request (change mode, no questions asked) */
|
|
int speex_std_mode_request_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
/** Standard handler for high mode request (change high mode, no questions asked) */
|
|
int speex_std_high_mode_request_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
/** Standard handler for in-band characters (write to stderr) */
|
|
int speex_std_char_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
/** Default handler for user-defined requests: in this case, just ignore */
|
|
int speex_default_user_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
|
|
|
|
|
|
int speex_std_low_mode_request_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
int speex_std_vbr_request_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
int speex_std_enh_request_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
int speex_std_vbr_quality_request_handler(SpeexBits *bits, void *state, void *data);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif
|