Fawkes API Fawkes Development Version
jpeg_compressor_libjpeg.h
1
2/***************************************************************************
3 * jpeg_compressor.h - JPEG image compressor interface
4 *
5 * Created: Fri Aug 11 18:53:19 2006 (on train to Cologne)
6 * Copyright 2005-2007 Tim Niemueller [www.niemueller.de]
7 *
8 ****************************************************************************/
9
10/* This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version. A runtime exception applies to
14 * this software (see LICENSE.GPL_WRE file mentioned below for details).
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Library General Public License for more details.
20 *
21 * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22 */
23
24#ifndef _FIREVISION_UTILS_COMPRESSION_JPEG_COMPRESSOR_LIBJPEG_H_
25#define _FIREVISION_UTILS_COMPRESSION_JPEG_COMPRESSOR_LIBJPEG_H_
26
27#ifndef _FIREVISION_UTILS_COMPRESSION_JPEG_COMPRESSOR_H_
28# error Do not include jpeg_compressor_libjpeg.h directly, use jpeg_compressor.h
29#endif
30
31#include <fvutils/compression/imagecompressor.h>
32
33namespace firevision {
34
36{
37public:
39 unsigned int quality = 80,
42
43 virtual void set_image_dimensions(unsigned int width, unsigned int height);
44 virtual void set_image_buffer(colorspace_t cspace, unsigned char *buffer);
45 virtual void set_destination_buffer(unsigned char *buf, unsigned int buf_size);
46 virtual size_t compressed_size();
47 virtual void set_filename(const char *filename);
50 virtual void compress();
52 virtual bool supports_vflip();
53 virtual void set_vflip(bool enable);
54
55private:
56 unsigned char *jpeg_buffer;
57 unsigned int jpeg_buffer_size;
58 unsigned char *buffer;
59
60 unsigned int quality;
61 bool vflip;
62
63 unsigned int width;
64 unsigned int height;
65
66 unsigned int jpeg_bytes;
67
68 const char *filename;
69
72};
73
74} // end namespace firevision
75
76#endif
Image compressor interface.
CompressionDestination
Where to put the compressed image.
virtual void set_filename(const char *filename)
Set file name.
virtual void set_vflip(bool enable)
Enable or disable vflipping.
virtual bool supports_compression_destination(ImageCompressor::CompressionDestination cd)
Check if compressor supports desired compression destination.
virtual void set_image_buffer(colorspace_t cspace, unsigned char *buffer)
Set image buffer to compress.
virtual size_t recommended_compressed_buffer_size()
Get the recommended size for the compressed buffer.
virtual bool supports_vflip()
Check if image compressor can do vflip during compress.
JpegImageCompressorLibJpeg(unsigned int quality=80, JpegImageCompressor::JpegColorspace jcs=JpegImageCompressor::JPEG_CS_RGB)
Constructor.
virtual void set_compression_destination(ImageCompressor::CompressionDestination cd)
Set compression destination.
virtual void set_destination_buffer(unsigned char *buf, unsigned int buf_size)
Set destination buffer (if compressing to memory).
virtual void set_image_dimensions(unsigned int width, unsigned int height)
Set dimensions of image to compress.
virtual size_t compressed_size()
Get compressed size.