Fawkes API
Fawkes Development Version
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00001 00002 /*************************************************************************** 00003 * jpeg_compressor.h - JPEG image compressor interface 00004 * 00005 * Created: Fri Aug 11 18:53:19 2006 (on train to Cologne) 00006 * Copyright 2005-2007 Tim Niemueller [www.niemueller.de] 00007 * 00008 ****************************************************************************/ 00009 00010 /* This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. A runtime exception applies to 00014 * this software (see LICENSE.GPL_WRE file mentioned below for details). 00015 * 00016 * This program is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU Library General Public License for more details. 00020 * 00021 * Read the full text in the LICENSE.GPL_WRE file in the doc directory. 00022 */ 00023 00024 #ifndef __FIREVISION_UTILS_COMPRESSION_JPEG_COMPRESSOR_H_ 00025 #define __FIREVISION_UTILS_COMPRESSION_JPEG_COMPRESSOR_H_ 00026 00027 #include <fvutils/compression/imagecompressor.h> 00028 00029 namespace firevision { 00030 #if 0 /* just to make Emacs auto-indent happy */ 00031 } 00032 #endif 00033 00034 class JpegImageCompressor : public ImageCompressor { 00035 public: 00036 00037 /** JPEG color space. */ 00038 enum JpegColorspace { 00039 JPEG_CS_RGB, /**< RGB */ 00040 JPEG_CS_YUV /**< YUV444 packed */ 00041 }; 00042 00043 JpegImageCompressor(unsigned int quality = 80, JpegColorspace jcs = JPEG_CS_RGB); 00044 virtual ~JpegImageCompressor(); 00045 00046 virtual void set_image_dimensions(unsigned int width, unsigned int height); 00047 virtual void set_image_buffer(colorspace_t cspace, unsigned char *buffer); 00048 virtual void set_destination_buffer(unsigned char *buf, unsigned int buf_size); 00049 virtual size_t compressed_size(); 00050 virtual void set_filename(const char *filename); 00051 virtual void set_compression_destination(ImageCompressor::CompressionDestination cd); 00052 virtual bool supports_compression_destination(ImageCompressor::CompressionDestination cd); 00053 virtual void compress(); 00054 virtual size_t recommended_compressed_buffer_size(); 00055 00056 private: 00057 unsigned char *jpeg_buffer; 00058 unsigned int jpeg_buffer_size; 00059 unsigned char *buffer; 00060 00061 unsigned int quality; 00062 00063 unsigned int width; 00064 unsigned int height; 00065 00066 unsigned int jpeg_bytes; 00067 00068 const char *filename; 00069 00070 JpegColorspace jpeg_cs; 00071 CompressionDestination compdest; 00072 }; 00073 00074 } // end namespace firevision 00075 00076 #endif