/*!
  * \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_VIDEO_CODEC_SVC_API_H__
 #define WELS_VIDEO_CODEC_SVC_API_H__
 
 #ifndef __cplusplus
 #ifdef _MSC_VER
 typedef unsigned char bool;
 #else
 #include <stdbool.h>
 #endif
 #endif
 
 #include "codec_app_def.h"
 #include "codec_def.h"
 
 #if defined(_WIN32) || defined(__cdecl)
 #define EXTAPI __cdecl
 #else
 #define EXTAPI
 #endif
 
 #ifdef __cplusplus
 class ISVCEncoder {
  public:
   /*
    * return: CM_RETURN: 0 - success; otherwise - failed;
    */
   virtual int EXTAPI Initialize (const SEncParamBase* pParam) = 0;
   virtual int EXTAPI InitializeExt (const SEncParamExt* pParam) = 0;
 
   virtual int EXTAPI GetDefaultParams (SEncParamExt* pParam) = 0;
 
   virtual int EXTAPI Uninitialize() = 0;
 
   /*
    * return: 0 - success; otherwise -failed;
    */
   virtual int EXTAPI EncodeFrame (const SSourcePicture* kpSrcPic, SFrameBSInfo* pBsInfo) = 0;
   /*
    * return: 0 - success; otherwise - failed;
    */
   virtual int EXTAPI EncodeParameterSets (SFrameBSInfo* pBsInfo) = 0;
 
   /*
    * return: 0 - success; otherwise - failed;
    */
   virtual int EXTAPI PauseFrame (const SSourcePicture* kpSrcPic, SFrameBSInfo* pBsInfo) = 0;
 
   /*
    * return: 0 - success; otherwise - failed;
    */
   virtual int EXTAPI ForceIntraFrame (bool bIDR) = 0;
 
   /************************************************************************
    * InDataFormat, IDRInterval, SVC Encode Param, Frame Rate, Bitrate,..
    ************************************************************************/
   /*
    * return: CM_RETURN: 0 - success; otherwise - failed;
    */
   virtual int EXTAPI SetOption (ENCODER_OPTION eOptionId, void* pOption) = 0;
   virtual int EXTAPI GetOption (ENCODER_OPTION eOptionId, void* pOption) = 0;
   virtual ~ISVCEncoder() {}
 };
 
 class ISVCDecoder {
  public:
   virtual long EXTAPI Initialize (const SDecodingParam* pParam) = 0;
   virtual long EXTAPI Uninitialize() = 0;
 
   virtual DECODING_STATE EXTAPI DecodeFrame (const unsigned char* pSrc,
       const int iSrcLen,
       unsigned char** ppDst,
       int* pStride,
       int& iWidth,
       int& iHeight) = 0;
   /*
    * return: 0 - success; otherwise -failed;
    */
   virtual DECODING_STATE EXTAPI DecodeFrame2 (const unsigned char* pSrc,
       const int iSrcLen,
       unsigned char** ppDst,
       SBufferInfo* pDstInfo) = 0;
 
   /*
    *  this API does not work for now!! This is for future use to support non-I420 color format output.
    */
   virtual DECODING_STATE EXTAPI DecodeFrameEx (const unsigned char* pSrc,
       const int iSrcLen,
       unsigned char* pDst,
       int iDstStride,
       int& iDstLen,
       int& iWidth,
       int& iHeight,
       int& iColorFormat) = 0;
 
   /*************************************************************************
    * OutDataFormat, Eos Flag, EC method, ...
    *************************************************************************/
   virtual long EXTAPI SetOption (DECODER_OPTION eOptionId, void* pOption) = 0;
   virtual long EXTAPI GetOption (DECODER_OPTION eOptionId, void* pOption) = 0;
   virtual ~ISVCDecoder() {}
 };
 
 
 extern "C"
 {
 #else
 
 typedef struct ISVCEncoderVtbl ISVCEncoderVtbl;
 typedef const ISVCEncoderVtbl* ISVCEncoder;
 struct ISVCEncoderVtbl {
 
 int (*Initialize) (ISVCEncoder*, const SEncParamBase* pParam);
 int (*InitializeExt) (ISVCEncoder*, const SEncParamExt* pParam);
 
 int (*GetDefaultParams) (ISVCEncoder*, SEncParamExt* pParam);
 
 int (*Uninitialize) (ISVCEncoder*);
 
 int (*EncodeFrame) (ISVCEncoder*, const SSourcePicture* kpSrcPic, SFrameBSInfo* pBsInfo);
 int (*EncodeParameterSets) (ISVCEncoder*, SFrameBSInfo* pBsInfo);
 
 int (*PauseFrame) (ISVCEncoder*, const SSourcePicture* kpSrcPic, SFrameBSInfo* pBsInfo);
 
 int (*ForceIntraFrame) (ISVCEncoder*, bool bIDR);
 
 int (*SetOption) (ISVCEncoder*, ENCODER_OPTION eOptionId, void* pOption);
 int (*GetOption) (ISVCEncoder*, ENCODER_OPTION eOptionId, void* pOption);
 };
 
 typedef struct ISVCDecoderVtbl ISVCDecoderVtbl;
 typedef const ISVCDecoderVtbl* ISVCDecoder;
 struct ISVCDecoderVtbl {
 long (*Initialize) (ISVCDecoder*, const SDecodingParam* pParam);
 long (*Uninitialize) (ISVCDecoder*);
 
 DECODING_STATE (*DecodeFrame) (ISVCDecoder*, const unsigned char* pSrc,
                                const int iSrcLen,
                                unsigned char** ppDst,
                                int* pStride,
                                int* iWidth,
                                int* iHeight);
 
 DECODING_STATE (*DecodeFrame2) (ISVCDecoder*, const unsigned char* pSrc,
                                 const int iSrcLen,
                                 unsigned char** ppDst,
                                 SBufferInfo* pDstInfo);
 
 DECODING_STATE (*DecodeFrameEx) (ISVCDecoder*, const unsigned char* pSrc,
                                  const int iSrcLen,
                                  unsigned char* pDst,
                                  int iDstStride,
                                  int* iDstLen,
                                  int* iWidth,
                                  int* iHeight,
                                  int* iColorFormat);
 
 long (*SetOption) (ISVCDecoder*, DECODER_OPTION eOptionId, void* pOption);
 long (*GetOption) (ISVCDecoder*, DECODER_OPTION eOptionId, void* pOption);
 };
 #endif
 
 typedef void (*WelsTraceCallback) (void* ctx, int level, const char* string);
 
 int  WelsCreateSVCEncoder (ISVCEncoder** ppEncoder);
 void WelsDestroySVCEncoder (ISVCEncoder* pEncoder);
 
 long WelsCreateDecoder (ISVCDecoder** ppDecoder);
 void WelsDestroyDecoder (ISVCDecoder* pDecoder);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif//WELS_VIDEO_CODEC_SVC_API_H__