shithub: openh264

ref: 8d23201a053cec92e5af9820bfe131b6f39a1908
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 {

typedef int (*CM_WELS_TRACE) (const char* kpFormat, ...);


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 char* kpFormat,  va_list pVl) = 0;

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

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

  static void WelsVTrace (void* pObject, const int32_t kLevel, const char* 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 char* kpFormat,  va_list pVl);

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

 private:
  int32_t   m_iLevel;
};

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

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

 private:
  WelsFileHandle* m_pTraceFile;
};

#ifdef  _WIN32
class CWelsTraceWinDgb : public CWelsTraceBase {
 public:
  CWelsTraceWinDgb() {};
  virtual ~CWelsTraceWinDgb() {};

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

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

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

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

 private:

  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* pParam = NULL);

} // namespace WelsDec

#endif //WELS_CODEC_TRACE