coder.c

来自「基于h323协议的软phone」· C语言 代码 · 共 80 行

#ifdef __cplusplus
extern "C" {
#endif



/*

NOTICE:
This document contains information that is proprietary to RADVISION LTD..
No part of this publication may be reproduced in any form whatsoever without
written prior approval by RADVISION LTD..

RADVISION LTD. reserves the right to revise this publication and make changes
without obligation to notify any person of such revisions or changes.

*/

#include <emanag.h>
#include <q931.h>
#include <per.h>

#include <pvaltree.h>


RVAPI
int RVCALLCONV cmEmEncode(
            IN      HPVT            valH,
            IN      RvPvtNodeId     vNodeId,
            OUT     RvUint8*        buffer,
            IN      int             length,
            OUT     int*            encoded)
{
    if (RV_PVT_NODEID_IS_VALID(vNodeId))
        return emEncode (valH,vNodeId,buffer,length,encoded);
    return vNodeId;

}


RVAPI
int RVCALLCONV cmEmDecode(
            IN      HPVT            valH,
            IN      RvPvtNodeId     vNodeId,
            IN      RvUint8*        buffer,
            IN      int             length,
            OUT     int*            decoded)
{
    if (RV_PVT_NODEID_IS_VALID(vNodeId))
        return emDecode(valH,vNodeId,buffer,length,decoded);
    return vNodeId;
}



/************************************************************************
 * cmEmInstall
 * purpose: Initialize the encode/decode manager.
 *          This function should be called by applications that want to
 *          encode and decode ASN.1 messages, but don't want to initialize
 *          and use the CM for that purpose.
 * input  : maxBufSize  - Maximum size of buffer supported (messages larger
 *                        than this size in bytes cannot be decoded/encoded).
 * output : none
 * return : Non-negative value on success
 *          Negative value on failure
 ************************************************************************/
RVAPI
int RVCALLCONV cmEmInstall(IN int maxBufSize)
{
    q931Install();
    perConstruct(maxBufSize);
    return 0;
}


#ifdef __cplusplus
}
#endif