/*! * \copy *     Copyright (c)  2013, Cisco Systems *     All rights reserved. * *     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. * *     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 *     COPYRIGHT HOLDER 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. * */ #ifdef _WIN32#include <windows.h>#include <tchar.h>#endif #include <stdio.h>#include <stdarg.h>#include <string.h> #include "crt_util_safe_x.h"	// Safe CRT routines like utils for cross platforms #include "welsCodecTrace.h"#include "utils.h"   static void welsStderrTrace (void* ctx, int level, const char* string) {  fprintf (stderr, "%s\n", string);} welsCodecTrace::welsCodecTrace() {   m_iTraceLevel = WELS_LOG_DEFAULT;  m_fpTrace = welsStderrTrace;  m_pTraceCtx = NULL;   m_sLogCtx.pLogCtx = this;  m_sLogCtx.pfLog = StaticCodecTrace;} welsCodecTrace::~welsCodecTrace() {  m_fpTrace = NULL;}   void welsCodecTrace::StaticCodecTrace (void* pCtx, const int32_t iLevel, const char* Str_Format, va_list vl) {  welsCodecTrace* self = (welsCodecTrace*) pCtx;  self->CodecTrace (iLevel, Str_Format, vl);} void welsCodecTrace::CodecTrace (const int32_t iLevel, const char* Str_Format, va_list vl) {  if (m_iTraceLevel < iLevel) {    return;  }   char pBuf[MAX_LOG_SIZE] = {0};  WelsVsnprintf (pBuf, MAX_LOG_SIZE, Str_Format, vl);	// confirmed_safe_unsafe_usage  if (m_fpTrace) {    m_fpTrace (m_pTraceCtx, iLevel, pBuf);  }} void welsCodecTrace::SetTraceLevel (const int32_t iLevel) {  if (iLevel >= 0)    m_iTraceLevel	= iLevel;} void welsCodecTrace::SetTraceCallback (WelsTraceCallback func) {  m_fpTrace = func;} void welsCodecTrace::SetTraceCallbackContext (void* ctx) {  m_pTraceCtx = ctx;}