2 Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "j2k_image_proxy.h"
22 #include "dcpomatic_socket.h"
24 #include "dcpomatic_assert.h"
26 #include <dcp/raw_convert.h>
27 #include <dcp/openjpeg_image.h>
28 #include <dcp/mono_picture_frame.h>
29 #include <dcp/stereo_picture_frame.h>
30 #include <dcp/colour_conversion.h>
31 #include <dcp/rgb_xyz.h>
33 #include <libcxml/cxml.h>
34 DCPOMATIC_DISABLE_WARNINGS
35 #include <libxml++/libxml++.h>
36 DCPOMATIC_ENABLE_WARNINGS
46 using boost::shared_ptr;
47 using boost::optional;
48 using boost::dynamic_pointer_cast;
50 using dcp::raw_convert;
51 using namespace dcpomatic;
54 /** Construct a J2KImageProxy from a JPEG2000 file */
55 J2KImageProxy::J2KImageProxy (boost::filesystem::path path, dcp::Size size, AVPixelFormat pixel_format)
58 , _pixel_format (pixel_format)
61 /* ::image assumes 16bpp */
62 DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE);
65 J2KImageProxy::J2KImageProxy (
66 shared_ptr<const dcp::MonoPictureFrame> frame,
68 AVPixelFormat pixel_format,
69 optional<int> forced_reduction
71 : _data (frame->j2k_size ())
73 , _pixel_format (pixel_format)
74 , _forced_reduction (forced_reduction)
77 /* ::image assumes 16bpp */
78 DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE);
79 memcpy (_data.data().get(), frame->j2k_data(), _data.size ());
82 J2KImageProxy::J2KImageProxy (
83 shared_ptr<const dcp::StereoPictureFrame> frame,
86 AVPixelFormat pixel_format,
87 optional<int> forced_reduction
91 , _pixel_format (pixel_format)
92 , _forced_reduction (forced_reduction)
95 /* ::image assumes 16bpp */
96 DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE);
99 _data = Data (frame->left_j2k_size ());
100 memcpy (_data.data().get(), frame->left_j2k_data(), _data.size ());
103 _data = Data (frame->right_j2k_size ());
104 memcpy (_data.data().get(), frame->right_j2k_data(), _data.size ());
109 J2KImageProxy::J2KImageProxy (shared_ptr<cxml::Node> xml, shared_ptr<Socket> socket)
112 _size = dcp::Size (xml->number_child<int> ("Width"), xml->number_child<int> ("Height"));
113 if (xml->optional_number_child<int> ("Eye")) {
114 _eye = static_cast<dcp::Eye> (xml->number_child<int> ("Eye"));
116 _data = Data (xml->number_child<int> ("Size"));
117 /* This only matters when we are using J2KImageProxy for the preview, which
118 will never use this constructor (which is only used for passing data to
119 encode servers). So we can put anything in here. It's a bit of a hack.
121 _pixel_format = AV_PIX_FMT_XYZ12LE;
122 socket->read (_data.data().get (), _data.size ());
126 J2KImageProxy::prepare (optional<dcp::Size> target_size) const
128 boost::mutex::scoped_lock lm (_mutex);
131 std::cout << "target_size is " << target_size->width << " " << target_size->height << "\n";
133 std::cout << "no target size.\n";
137 std::cout << "_target_size is " << _target_size->width << " " << _target_size->height << "\n";
139 std::cout << "no _target size.\n";
142 if (_image) {// && target_size == _target_size) {
143 std::cout << "hit.\n";
145 //DCPOMATIC_ASSERT (_reduce);
151 if (_forced_reduction) {
152 reduce = *_forced_reduction;
154 while (target_size && (_size.width / pow(2, reduce)) > target_size->width && (_size.height / pow(2, reduce)) > target_size->height) {
159 reduce = max (0, reduce);
163 std::cout << "cpu decompress.\n";
164 shared_ptr<dcp::OpenJPEGImage> decompressed = dcp::decompress_j2k (_data, reduce);
165 _image.reset (new Image (_pixel_format, decompressed->size(), true));
167 int const shift = 16 - decompressed->precision (0);
169 /* Copy data in whatever format (sRGB or XYZ) into our Image; I'm assuming
170 the data is 12-bit either way.
173 int const width = decompressed->size().width;
176 int* decomp_0 = decompressed->data (0);
177 int* decomp_1 = decompressed->data (1);
178 int* decomp_2 = decompressed->data (2);
179 for (int y = 0; y < decompressed->size().height; ++y) {
180 uint16_t* q = (uint16_t *) (_image->data()[0] + y * _image->stride()[0]);
181 for (int x = 0; x < width; ++x) {
182 *q++ = decomp_0[p] << shift;
183 *q++ = decomp_1[p] << shift;
184 *q++ = decomp_2[p] << shift;
188 } catch (dcp::J2KDecompressionError& e) {
189 _image.reset (new Image (_pixel_format, _size, true));
190 _image->make_black ();
194 _target_size = target_size;
202 J2KImageProxy::image (optional<dcp::Size> target_size) const
204 int const r = prepare (target_size);
206 /* I think this is safe without a lock on mutex. _image is guaranteed to be
207 set up when prepare() has happened.
209 return Result (_image, r, _error);
214 J2KImageProxy::add_metadata (xmlpp::Node* node) const
216 node->add_child("Type")->add_child_text (N_("J2K"));
217 node->add_child("Width")->add_child_text (raw_convert<string> (_size.width));
218 node->add_child("Height")->add_child_text (raw_convert<string> (_size.height));
220 node->add_child("Eye")->add_child_text (raw_convert<string> (static_cast<int> (_eye.get ())));
222 node->add_child("Size")->add_child_text (raw_convert<string> (_data.size ()));
226 J2KImageProxy::write_to_socket (shared_ptr<Socket> socket) const
228 socket->write (_data.data().get(), _data.size());
232 J2KImageProxy::same (shared_ptr<const ImageProxy> other) const
234 shared_ptr<const J2KImageProxy> jp = dynamic_pointer_cast<const J2KImageProxy> (other);
239 if (_data.size() != jp->_data.size()) {
243 return memcmp (_data.data().get(), jp->_data.data().get(), _data.size()) == 0;
246 J2KImageProxy::J2KImageProxy (Data data, dcp::Size size, AVPixelFormat pixel_format)
249 , _pixel_format (pixel_format)
251 /* ::image assumes 16bpp */
252 DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE);
256 J2KImageProxy::memory_used () const
258 size_t m = _data.size();
260 /* 3 components, 16-bits per pixel */
261 m += 3 * 2 * _image->size().width * _image->size().height;
268 J2KImageProxy::set_image (shared_ptr<dcpomatic::Image> image)
270 // XXX need _target_size to be set up
271 boost::mutex::scoped_lock lm (_mutex);