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);
130 if (_image) {// && target_size == _target_size) {
132 //DCPOMATIC_ASSERT (_reduce);
138 if (_forced_reduction) {
139 reduce = *_forced_reduction;
141 while (target_size && (_size.width / pow(2, reduce)) > target_size->width && (_size.height / pow(2, reduce)) > target_size->height) {
146 reduce = max (0, reduce);
150 shared_ptr<dcp::OpenJPEGImage> decompressed = dcp::decompress_j2k (_data, reduce);
151 _image.reset (new Image (_pixel_format, decompressed->size(), true));
153 int const shift = 16 - decompressed->precision (0);
155 /* Copy data in whatever format (sRGB or XYZ) into our Image; I'm assuming
156 the data is 12-bit either way.
159 int const width = decompressed->size().width;
162 int* decomp_0 = decompressed->data (0);
163 int* decomp_1 = decompressed->data (1);
164 int* decomp_2 = decompressed->data (2);
165 for (int y = 0; y < decompressed->size().height; ++y) {
166 uint16_t* q = (uint16_t *) (_image->data()[0] + y * _image->stride()[0]);
167 for (int x = 0; x < width; ++x) {
168 *q++ = decomp_0[p] << shift;
169 *q++ = decomp_1[p] << shift;
170 *q++ = decomp_2[p] << shift;
174 } catch (dcp::J2KDecompressionError& e) {
175 _image.reset (new Image (_pixel_format, _size, true));
176 _image->make_black ();
180 _target_size = target_size;
188 J2KImageProxy::image (optional<dcp::Size> target_size) const
190 int const r = prepare (target_size);
192 /* I think this is safe without a lock on mutex. _image is guaranteed to be
193 set up when prepare() has happened.
195 return Result (_image, r, _error);
200 J2KImageProxy::add_metadata (xmlpp::Node* node) const
202 node->add_child("Type")->add_child_text (N_("J2K"));
203 node->add_child("Width")->add_child_text (raw_convert<string> (_size.width));
204 node->add_child("Height")->add_child_text (raw_convert<string> (_size.height));
206 node->add_child("Eye")->add_child_text (raw_convert<string> (static_cast<int> (_eye.get ())));
208 node->add_child("Size")->add_child_text (raw_convert<string> (_data.size ()));
212 J2KImageProxy::write_to_socket (shared_ptr<Socket> socket) const
214 socket->write (_data.data().get(), _data.size());
218 J2KImageProxy::same (shared_ptr<const ImageProxy> other) const
220 shared_ptr<const J2KImageProxy> jp = dynamic_pointer_cast<const J2KImageProxy> (other);
225 if (_data.size() != jp->_data.size()) {
229 return memcmp (_data.data().get(), jp->_data.data().get(), _data.size()) == 0;
232 J2KImageProxy::J2KImageProxy (Data data, dcp::Size size, AVPixelFormat pixel_format)
235 , _pixel_format (pixel_format)
237 /* ::image assumes 16bpp */
238 DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE);
242 J2KImageProxy::memory_used () const
244 size_t m = _data.size();
246 /* 3 components, 16-bits per pixel */
247 m += 3 * 2 * _image->size().width * _image->size().height;
254 J2KImageProxy::set_image (shared_ptr<dcpomatic::Image> image)
256 // XXX need _target_size to be set up
257 boost::mutex::scoped_lock lm (_mutex);