Extract common code out into kdm_for_screen()

[dcpomatic.git] / src / lib / image.h

diff --git a/src/lib/image.h b/src/lib/image.h
index 89cd98f7b281bd6cfe68a758e3b8ceb33625d3a9..46633df679d00b9f6eceee34be126711c0fd5d85 100644 (file)
--- a/src/lib/image.h
+++ b/src/lib/image.h
@@ -1,19 +1,20 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
@@ -27,40 +28,43 @@
 #include "position.h"
 #include "position_image.h"
 #include "types.h"
-#include <dcp/colour_conversion.h>
 extern "C" {
-#include <libavcodec/avcodec.h>
-#include <libavfilter/avfilter.h>
+#include <libavutil/pixfmt.h>
 }
+#include <dcp/colour_conversion.h>
 #include <boost/shared_ptr.hpp>
-#include <boost/function.hpp>
-#include <string>
+#include <boost/enable_shared_from_this.hpp>
 
+struct AVFrame;
 class Socket;
 
-class Image
+class Image : public boost::enable_shared_from_this<Image>
 {
 public:
-       Image (AVPixelFormat, dcp::Size, bool);
-       Image (AVFrame *);
-       Image (Image const &);
+       Image (AVPixelFormat p, dcp::Size s, bool aligned);
+       explicit Image (AVFrame *);
+       explicit Image (Image const &);
        Image (boost::shared_ptr<const Image>, bool);
        Image& operator= (Image const &);
        ~Image ();
 
        uint8_t * const * data () const;
-       int * line_size () const;
+       int const * line_size () const;
        int const * stride () const;
        dcp::Size size () const;
        bool aligned () const;
 
-       int components () const;
-       int line_factor (int) const;
-       int lines (int) const;
+       int planes () const;
+       int vertical_factor (int) const;
+       int horizontal_factor (int) const;
+       dcp::Size sample_size (int) const;
+       float bytes_per_pixel (int) const;
 
-       boost::shared_ptr<Image> scale (dcp::Size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat, bool aligned) const;
-       boost::shared_ptr<Image> crop (Crop c, bool aligned) const;
-       boost::shared_ptr<Image> crop_scale_window (Crop c, dcp::Size, dcp::Size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat, bool aligned) const;
+       boost::shared_ptr<Image> convert_pixel_format (dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool aligned, bool fast) const;
+       boost::shared_ptr<Image> scale (dcp::Size out_size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool aligned, bool fast) const;
+       boost::shared_ptr<Image> crop_scale_window (
+               Crop crop, dcp::Size inter_size, dcp::Size out_size, dcp::YUVToRGB yuv_to_rgb, VideoRange video_range, AVPixelFormat out_format, bool aligned, bool fast
+               ) const;
 
        void make_black ();
        void make_transparent ();
@@ -75,20 +79,28 @@ public:
                return _pixel_format;
        }
 
+       size_t memory_used () const;
+
+       dcp::Data as_png () const;
+
+       void png_error (char const * message);
+
+       static boost::shared_ptr<const Image> ensure_aligned (boost::shared_ptr<const Image> image);
+
 private:
        friend struct pixel_formats_test;
 
        void allocate ();
        void swap (Image &);
-       float bytes_per_pixel (int) const;
+       void make_part_black (int x, int w);
        void yuv_16_black (uint16_t, bool);
        static uint16_t swap_16 (uint16_t);
 
        dcp::Size _size;
        AVPixelFormat _pixel_format; ///< FFmpeg's way of describing the pixel format of this Image
        uint8_t** _data; ///< array of pointers to components
-       int* _line_size; ///< array of sizes of the data in each line, in pixels (without any alignment padding bytes)
-       int* _stride; ///< array of strides for each line (including any alignment padding bytes)
+       int* _line_size; ///< array of sizes of the data in each line, in bytes (without any alignment padding bytes)
+       int* _stride; ///< array of strides for each line, in bytes (including any alignment padding bytes)
        bool _aligned;
 };