shithub: openh264

ref: 53c8a37ee13f7e38381f0fb286d3dc55ca4e669a
dir: /codec/decoder/plus/inc/welsCodecTrace.h/

/*!
 * \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.
 *
 */

#ifndef WELS_CODEC_TRACE
#define WELS_CODEC_TRACE


#include "typedefs.h"

//using namespace WelsDec;
namespace WelsDec {

#ifdef WIN32
typedef int ( *CM_WELS_TRACE)( const char* kpFormat, ...);
#else
typedef int ( *CM_WELS_TRACE)( const char* kpDllName, const char* kpFormat, ...);
#endif


typedef  enum {
	Wels_Trace_Type     = 0,
	Wels_Trace_Type_File    = 1,
	Wels_Trace_Type_WinDgb  = 2,
} EWelsTraceType;

class  IWelsTrace 
{
public:
	enum {
		WELS_LOG_QUIET     = 0,
		WELS_LOG_ERROR     = 1 << 0,
		WELS_LOG_WARNING   = 1 << 1,
		WELS_LOG_INFO      = 1 << 2,
		WELS_LOG_DEBUG     = 1 << 3,
		WELS_LOG_RESV      = 1 << 4,
	    WELS_LOG_DEFAULT   = WELS_LOG_ERROR | WELS_LOG_WARNING | WELS_LOG_INFO | WELS_LOG_DEBUG,


		MAX_LOG_SIZE       = 1024,
	};

	virtual ~IWelsTrace() {};

	virtual int32_t  SetTraceLevel(int32_t iLevel) = 0;
	virtual int32_t  Trace(const int32_t kLevel, const str_t * kpFormat,  va_list pVl) = 0;

	static void_t  WelsTrace(void_t* pObject, const int32_t kLevel, const str_t * kpFormat, va_list pVl)
	{
		IWelsTrace  * pThis = (IWelsTrace*)(pObject);

		if( pThis ){
			pThis->Trace(kLevel, kpFormat, pVl);
		}
	}

	static void_t WelsVTrace(void_t *pObject, const int32_t kLevel, const str_t *kpFormat, ...)
	{
		IWelsTrace * pThis = (IWelsTrace *)(pObject);

		va_list  argptr;	

		va_start(argptr, kpFormat);	

		if( pThis ){
			pThis->Trace(kLevel, kpFormat, argptr);		
		}

		va_end(argptr);
	}


};

class CWelsTraceBase : public IWelsTrace
{
public:
	virtual int32_t  SetTraceLevel(int32_t iLevel);
	virtual int32_t  Trace(const int32_t kLevel, const str_t * kpFormat,  va_list pVl);

    virtual int32_t  WriteString(int32_t iLevel, const str_t * pStr) = 0;
protected:
	CWelsTraceBase() 
	{
		m_iLevel = WELS_LOG_DEFAULT;
	};

private:
	int32_t   m_iLevel;
};

class CWelsTraceFile : public CWelsTraceBase
{
public:
	CWelsTraceFile(const str_t  * filename = (const str_t *)"wels_decoder_trace.txt");
	virtual ~CWelsTraceFile();

public:
	virtual int32_t  WriteString(int32_t iLevel, const str_t * pStr);

private:
    WelsFileHandle* m_pTraceFile;
};

#ifdef  WIN32
class CWelsTraceWinDgb : public CWelsTraceBase
{
public:
	CWelsTraceWinDgb() {};
	virtual ~CWelsTraceWinDgb() {};

public:
	virtual int32_t  WriteString(int32_t iLevel, const str_t * pStr);
};
#endif

class CWelsCodecTrace : public CWelsTraceBase
{
public:
	CWelsCodecTrace() ;
	virtual ~CWelsCodecTrace();

public:
	virtual int32_t  WriteString(int32_t iLevel, const str_t * pStr);

protected:
	int32_t  LoadWelsTraceModule();
	int32_t  UnloadWelsTraceModule();

private:
    void_t  * m_hTraceHandle;

    CM_WELS_TRACE m_fpDebugTrace;
	CM_WELS_TRACE m_fpInfoTrace;
	CM_WELS_TRACE m_fpWarnTrace;
	CM_WELS_TRACE m_fpErrorTrace;
};


IWelsTrace  * CreateWelsTrace(EWelsTraceType  eType,  void_t * pParam = NULL);

} // namespace WelsDec

#endif //WELS_CODEC_TRACE