2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * @brief A set of classes to describe video images.
24 #ifndef DCPOMATIC_IMAGE_H
25 #define DCPOMATIC_IMAGE_H
28 #include "position_image.h"
30 #include <dcp/image.h>
32 #include <libavcodec/avcodec.h>
33 #include <libavfilter/avfilter.h>
35 #include <boost/shared_ptr.hpp>
36 #include <boost/function.hpp>
42 class Image : public dcp::Image
45 Image (AVPixelFormat, dcp::Size, bool);
47 Image (Image const &);
48 Image (boost::shared_ptr<const Image>, bool);
49 Image& operator= (Image const &);
52 uint8_t * const * data () const;
53 int * line_size () const;
54 int const * stride () const;
55 dcp::Size size () const;
56 bool aligned () const;
58 int components () const;
59 int line_factor (int) const;
60 int lines (int) const;
62 boost::shared_ptr<Image> scale (dcp::Size, Scaler const *, AVPixelFormat, bool aligned) const;
63 boost::shared_ptr<Image> crop (Crop c, bool aligned) const;
65 boost::shared_ptr<Image> crop_scale_window (Crop c, dcp::Size, dcp::Size, Scaler const *, AVPixelFormat, bool aligned) const;
68 void make_transparent ();
69 void alpha_blend (boost::shared_ptr<const Image> image, Position<int> pos);
70 void copy (boost::shared_ptr<const Image> image, Position<int> pos);
73 void read_from_socket (boost::shared_ptr<Socket>);
74 void write_to_socket (boost::shared_ptr<Socket>) const;
76 AVPixelFormat pixel_format () const {
80 std::string digest () const;
83 friend struct pixel_formats_test;
87 float bytes_per_pixel (int) const;
88 void yuv_16_black (uint16_t, bool);
89 static uint16_t swap_16 (uint16_t);
91 AVPixelFormat _pixel_format; ///< FFmpeg's way of describing the pixel format of this Image
92 uint8_t** _data; ///< array of pointers to components
93 int* _line_size; ///< array of sizes of the data in each line, in pixels (without any alignment padding bytes)
94 int* _stride; ///< array of strides for each line (including any alignment padding bytes)
98 extern PositionImage merge (std::list<PositionImage> images);
99 extern bool operator== (Image const & a, Image const & b);