shithub: openh264

ref: 12e5f1b673d3a05c06ba3f2e0a4d35d58a08d8ce
dir: /codec/decoder/plus/inc/welsDecoderExt.h/

/*!
 * \copy
 *     Copyright (c)  2009-2013, 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.
 *
 *
 *  WelsDecoderExt.h
 *
 *  Abstract
 *      Cisco OpenH264 decoder extension utilization interface
 *
 *  History
 *      3/12/2009 Created
 *
 *
 *************************************************************************/
#if !defined(WELS_PLUS_WELSDECODEREXT_H)
#define WELS_PLUS_WELSDECODEREXT_H

#include "codec_api.h"
#include "codec_app_def.h"
#include "decoder_context.h"
#include "welsCodecTrace.h"
#include "cpu.h"

class ISVCDecoder;

namespace WelsDec {

//#define OUTPUT_BIT_STREAM  ////for test to output bitstream

class CWelsDecoder : public ISVCDecoder {
 public:
CWelsDecoder (void);
virtual ~CWelsDecoder();

virtual long EXTAPI Initialize (const SDecodingParam* pParam);
virtual long EXTAPI Uninitialize();

/***************************************************************************
*   Description:
*       Decompress one frame, and output I420 or RGB24(in the future) decoded stream and its length.
*   Input parameters:
*       Parameter       TYPE                   Description
*       pSrc            unsigned char*         the h264 stream to decode
*       srcLength       int                    the length of h264 steam
*       pDst            unsigned char*         buffer pointer of decoded data
*       pDstInfo        SBufferInfo&           information provided to API including width, height, SW/HW option, etc
*
*   return: if decode frame success return 0, otherwise corresponding error returned.
***************************************************************************/
virtual DECODING_STATE EXTAPI DecodeFrame (const unsigned char* kpSrc,
    const int kiSrcLen,
    unsigned char** ppDst,
    int* pStride,
    int& iWidth,
    int& iHeight);

virtual DECODING_STATE EXTAPI DecodeFrameNoDelay (const unsigned char* kpSrc,
    const int kiSrcLen,
    unsigned char** ppDst,
    SBufferInfo* pDstInfo);

virtual DECODING_STATE EXTAPI DecodeFrame2 (const unsigned char* kpSrc,
    const int kiSrcLen,
    unsigned char** ppDst,
    SBufferInfo* pDstInfo);
virtual DECODING_STATE EXTAPI DecodeParser (const unsigned char* kpSrc,
    const int kiSrcLen,
    SParserBsInfo* pDstInfo);
virtual DECODING_STATE EXTAPI DecodeFrameEx (const unsigned char* kpSrc,
    const int kiSrcLen,
    unsigned char* pDst,
    int iDstStride,
    int& iDstLen,
    int& iWidth,
    int& iHeight,
    int& color_format);

virtual long EXTAPI SetOption (DECODER_OPTION eOptID, void* pOption);
virtual long EXTAPI GetOption (DECODER_OPTION eOptID, void* pOption);

 private:
PWelsDecoderContext     m_pDecContext;
welsCodecTrace*         m_pWelsTrace;

int32_t InitDecoder (const SDecodingParam* pParam);
void UninitDecoder (void);
int32_t ResetDecoder();

void OutputStatisticsLog (SDecoderStatistics& sDecoderStatistics);

#ifdef OUTPUT_BIT_STREAM
WelsFileHandle* m_pFBS;
WelsFileHandle* m_pFBSSize;
#endif//OUTPUT_BIT_STREAM

};

} // namespace WelsDec

#endif // !defined(WELS_PLUS_WELSDECODEREXT_H)