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      1 /*M///////////////////////////////////////////////////////////////////////////////////////
      2 //
      3 //  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
      4 //
      5 //  By downloading, copying, installing or using the software you agree to this license.
      6 //  If you do not agree to this license, do not download, install,
      7 //  copy or use the software.
      8 //
      9 //
     10 //                           License Agreement
     11 //                For Open Source Computer Vision Library
     12 //
     13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
     14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
     15 // Third party copyrights are property of their respective owners.
     16 //
     17 // Redistribution and use in source and binary forms, with or without modification,
     18 // are permitted provided that the following conditions are met:
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     20 //   * Redistribution's of source code must retain the above copyright notice,
     21 //     this list of conditions and the following disclaimer.
     22 //
     23 //   * Redistribution's in binary form must reproduce the above copyright notice,
     24 //     this list of conditions and the following disclaimer in the documentation
     25 //     and/or other materials provided with the distribution.
     26 //
     27 //   * The name of the copyright holders may not be used to endorse or promote products
     28 //     derived from this software without specific prior written permission.
     29 //
     30 // This software is provided by the copyright holders and contributors "as is" and
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     32 // warranties of merchantability and fitness for a particular purpose are disclaimed.
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     35 // (including, but not limited to, procurement of substitute goods or services;
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     40 //
     41 //M*/
     42 
     43 #ifndef _GRFMT_JPEG_H_
     44 #define _GRFMT_JPEG_H_
     45 
     46 #include "grfmt_base.hpp"
     47 #include "bitstrm.hpp"
     48 
     49 #ifdef HAVE_JPEG
     50 
     51 // IJG-based Jpeg codec
     52 
     53 namespace cv
     54 {
     55 
     56 class JpegDecoder : public BaseImageDecoder
     57 {
     58 public:
     59 
     60     JpegDecoder();
     61     virtual ~JpegDecoder();
     62 
     63     bool  readData( Mat& img );
     64     bool  readHeader();
     65     void  close();
     66 
     67     ImageDecoder newDecoder() const;
     68 
     69 protected:
     70 
     71     FILE* m_f;
     72     void* m_state;
     73 };
     74 
     75 
     76 class JpegEncoder : public BaseImageEncoder
     77 {
     78 public:
     79     JpegEncoder();
     80     virtual ~JpegEncoder();
     81 
     82     bool  write( const Mat& img, const std::vector<int>& params );
     83     ImageEncoder newEncoder() const;
     84 };
     85 
     86 }
     87 
     88 #endif
     89 
     90 #endif/*_GRFMT_JPEG_H_*/
     91