2 Copyright (C) 2014-2015 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.
20 #include "j2k_image_proxy.h"
21 #include "dcpomatic_socket.h"
24 #include "raw_convert.h"
25 #include <dcp/openjpeg_image.h>
26 #include <dcp/mono_picture_frame.h>
27 #include <dcp/stereo_picture_frame.h>
28 #include <dcp/colour_conversion.h>
29 #include <dcp/rgb_xyz.h>
30 #include <libcxml/cxml.h>
36 using boost::shared_ptr;
37 using boost::optional;
38 using boost::dynamic_pointer_cast;
40 /** Construct a J2KImageProxy from a JPEG2000 file */
41 J2KImageProxy::J2KImageProxy (boost::filesystem::path path, dcp::Size size)
48 J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::MonoPictureFrame> frame, dcp::Size size)
49 : _data (frame->j2k_size ())
52 memcpy (_data.data().get(), frame->j2k_data(), _data.size ());
55 J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::StereoPictureFrame> frame, dcp::Size size, dcp::Eye eye)
61 _data = Data (frame->left_j2k_size ());
62 memcpy (_data.data().get(), frame->left_j2k_data(), _data.size ());
65 _data = Data (frame->right_j2k_size ());
66 memcpy (_data.data().get(), frame->right_j2k_data(), _data.size ());
71 J2KImageProxy::J2KImageProxy (shared_ptr<cxml::Node> xml, shared_ptr<Socket> socket)
73 _size = dcp::Size (xml->number_child<int> ("Width"), xml->number_child<int> ("Height"));
74 if (xml->optional_number_child<int> ("Eye")) {
75 _eye = static_cast<dcp::Eye> (xml->number_child<int> ("Eye"));
77 _data = Data (xml->number_child<int> ("Size"));
78 socket->read (_data.data().get (), _data.size ());
82 J2KImageProxy::image (optional<dcp::NoteHandler> note) const
84 shared_ptr<Image> image (new Image (PIX_FMT_RGB48LE, _size, true));
86 shared_ptr<dcp::OpenJPEGImage> oj = dcp::decompress_j2k (const_cast<uint8_t*> (_data.data().get()), _data.size (), 0);
88 if (oj->opj_image()->comps[0].prec < 12) {
89 int const shift = 12 - oj->opj_image()->comps[0].prec;
90 for (int c = 0; c < 3; ++c) {
91 int* p = oj->data (c);
92 for (int y = 0; y < oj->size().height; ++y) {
93 for (int x = 0; x < oj->size().width; ++x) {
100 if (oj->opj_image()->color_space == CLRSPC_SRGB) {
101 /* No XYZ -> RGB conversion necessary; just copy and interleave the values */
103 for (int y = 0; y < oj->size().height; ++y) {
104 uint16_t* q = (uint16_t *) (image->data()[0] + y * image->stride()[0]);
105 for (int x = 0; x < oj->size().width; ++x) {
106 for (int c = 0; c < 3; ++c) {
107 *q++ = oj->data(c)[p] << 4;
113 dcp::xyz_to_rgb (oj, dcp::ColourConversion::srgb_to_xyz(), image->data()[0], image->stride()[0], note);
120 J2KImageProxy::add_metadata (xmlpp::Node* node) const
122 node->add_child("Type")->add_child_text (N_("J2K"));
123 node->add_child("Width")->add_child_text (raw_convert<string> (_size.width));
124 node->add_child("Height")->add_child_text (raw_convert<string> (_size.height));
126 node->add_child("Eye")->add_child_text (raw_convert<string> (_eye.get ()));
128 node->add_child("Size")->add_child_text (raw_convert<string> (_data.size ()));
132 J2KImageProxy::send_binary (shared_ptr<Socket> socket) const
134 socket->write (_data.data().get(), _data.size());
138 J2KImageProxy::same (shared_ptr<const ImageProxy> other) const
140 shared_ptr<const J2KImageProxy> jp = dynamic_pointer_cast<const J2KImageProxy> (other);
145 if (_data.size() != jp->_data.size()) {
149 return memcmp (_data.data().get(), jp->_data.data().get(), _data.size()) == 0;