frame.h

iax协议Source Code

/*
 * libiax: An implementation of the Inter-Asterisk eXchange protocol
 *
 * Asterisk internal frame definitions.
 * 
 * Copyright (C) 1999, Mark Spencer
 *
 * Mark Spencer <[e-mail]>
 *
 * This program is free software, distributed under the terms of
 * the GNU Lesser General Public License.  Other components of
 * Asterisk are distributed under The GNU General Public License
 * only.
 */

#ifndef _ASTERISK_FRAME_H
#define _ASTERISK_FRAME_H

#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif

/* Frame types */
#define AST_FRAME_DTMF		1		/* A DTMF digit, subclass is the digit */
#define AST_FRAME_VOICE		2		/* Voice data, subclass is AST_FORMAT_* */
#define AST_FRAME_VIDEO		3		/* Video frame, maybe?? :) */
#define AST_FRAME_CONTROL	4		/* A control frame, subclass is AST_CONTROL_* */
#define AST_FRAME_NULL		5		/* An empty, useless frame */
#define AST_FRAME_IAX		6		/* Inter Aterisk Exchange private frame type */
#define AST_FRAME_TEXT		7		/* Text messages */
#define AST_FRAME_IMAGE		8		/* Image Frames */
#define AST_FRAME_HTML		9		/* HTML Frames */

/* HTML subclasses */
#define AST_HTML_URL		1		/* Sending a URL */
#define AST_HTML_DATA		2		/* Data frame */
#define AST_HTML_BEGIN		4		/* Beginning frame */
#define AST_HTML_END		8		/* End frame */
#define AST_HTML_LDCOMPLETE	16		/* Load is complete */
#define AST_HTML_NOSUPPORT	17		/* Peer is unable to support HTML */
#define AST_HTML_LINKURL	18		/* Send URL and track */
#define AST_HTML_UNLINK		19		/* Request no more linkage */
#define AST_HTML_LINKREJECT	20		/* Reject LINKURL */

/* Data formats for capabilities and frames alike */
#define AST_FORMAT_G723_1	(1 << 0)	/* G.723.1 compression */
#define AST_FORMAT_GSM		(1 << 1)	/* GSM compression */
#define AST_FORMAT_ULAW		(1 << 2)	/* Raw mu-law data (G.711) */
#define AST_FORMAT_ALAW		(1 << 3)	/* Raw A-law data (G.711) */
#define AST_FORMAT_MP3		(1 << 4)	/* MPEG-2 layer 3 */
#define AST_FORMAT_ADPCM	(1 << 5)	/* ADPCM (whose?) */
#define AST_FORMAT_SLINEAR	(1 << 6)	/* Raw 16-bit Signed Linear (8000 Hz) PCM */
#define AST_FORMAT_LPC10	(1 << 7)	/* LPC10, 180 samples/frame */
#define AST_FORMAT_MAX_AUDIO (1 << 15)	/* Maximum audio format */
#define AST_FORMAT_JPEG		(1 << 16)	/* JPEG Images */
#define AST_FORMAT_PNG		(1 << 17)	/* PNG Images */
#define AST_FORMAT_H261		(1 << 18)	/* H.261 Video */
#define AST_FORMAT_H263		(1 << 19)	/* H.263 Video */

/* Control frame types */
#define AST_CONTROL_HANGUP		1			/* Other end has hungup */
#define AST_CONTROL_RING		2			/* Local ring */
#define AST_CONTROL_RINGING 	3			/* Remote end is ringing */
#define AST_CONTROL_ANSWER		4			/* Remote end has answered */
#define AST_CONTROL_BUSY		5			/* Remote end is busy */
#define AST_CONTROL_TAKEOFFHOOK 6			/* Make it go off hook */
#define AST_CONTROL_OFFHOOK		7			/* Line is off hook */
#define AST_CONTROL_CONGESTION	8			/* Congestion (circuits busy) */
#define AST_CONTROL_FLASH		9			/* Flash hook */
#define AST_CONTROL_WINK		10			/* Wink */
#define AST_CONTROL_OPTION		11			/* Set an option */

#if defined(__cplusplus) || defined(c_plusplus)
}
#endif


#endif