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.
20 /** @file src/picture_asset.cc
21 * @brief An asset made up of JPEG2000 files
29 #include <boost/filesystem.hpp>
30 #include <boost/lexical_cast.hpp>
32 #include <libxml++/nodes/element.h>
34 #include "KM_fileio.h"
35 #include "picture_asset.h"
37 #include "exceptions.h"
38 #include "picture_frame.h"
45 using std::stringstream;
46 using boost::shared_ptr;
47 using boost::dynamic_pointer_cast;
48 using boost::lexical_cast;
49 using namespace libdcp;
51 PictureAsset::PictureAsset (string directory, string mxf_name, boost::signals2::signal<void (float)>* progress, int fps, int entry_point, int length, bool encrypted)
52 : MXFAsset (directory, mxf_name, progress, fps, entry_point, length, encrypted)
60 PictureAsset::write_to_cpl (xmlpp::Element* parent) const
62 xmlpp::Element* main_picture = parent->add_child("MainPicture");
63 main_picture->add_child("Id")->add_child_text("urn:uuid:" + _uuid);
64 main_picture->add_child("AnnotationText")->add_child_text(_file_name);
65 main_picture->add_child("EditRate")->add_child_text(boost::lexical_cast<string> (_fps) + " 1");
66 main_picture->add_child("IntrinsicDuration")->add_child_text(boost::lexical_cast<string> (_length));
67 main_picture->add_child("EntryPoint")->add_child_text("0");
68 main_picture->add_child("Duration")->add_child_text(boost::lexical_cast<string> (_length));
70 main_picture->add_child("KeyId")->add_child_text("urn:uuid:" + _key_id);
72 main_picture->add_child("FrameRate")->add_child_text(boost::lexical_cast<string> (_fps) + " 1");
74 sar << _width << " " << _height;
75 main_picture->add_child("ScreenAspectRatio")->add_child_text(sar.str());
79 PictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<string>& notes) const
81 if (!MXFAsset::equals (other, opt, notes)) {
85 ASDCP::JP2K::MXFReader reader_A;
86 if (ASDCP_FAILURE (reader_A.OpenRead (path().string().c_str()))) {
87 throw MXFFileError ("could not open MXF file for reading", path().string());
90 ASDCP::JP2K::MXFReader reader_B;
91 if (ASDCP_FAILURE (reader_B.OpenRead (other->path().string().c_str()))) {
92 throw MXFFileError ("could not open MXF file for reading", path().string());
95 ASDCP::JP2K::PictureDescriptor desc_A;
96 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
97 throw DCPReadError ("could not read video MXF information");
99 ASDCP::JP2K::PictureDescriptor desc_B;
100 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
101 throw DCPReadError ("could not read video MXF information");
105 desc_A.EditRate != desc_B.EditRate ||
106 desc_A.ContainerDuration != desc_B.ContainerDuration ||
107 desc_A.SampleRate != desc_B.SampleRate ||
108 desc_A.StoredWidth != desc_B.StoredWidth ||
109 desc_A.StoredHeight != desc_B.StoredHeight ||
110 desc_A.AspectRatio != desc_B.AspectRatio ||
111 desc_A.Rsize != desc_B.Rsize ||
112 desc_A.Xsize != desc_B.Xsize ||
113 desc_A.Ysize != desc_B.Ysize ||
114 desc_A.XOsize != desc_B.XOsize ||
115 desc_A.YOsize != desc_B.YOsize ||
116 desc_A.XTsize != desc_B.XTsize ||
117 desc_A.YTsize != desc_B.YTsize ||
118 desc_A.XTOsize != desc_B.XTOsize ||
119 desc_A.YTOsize != desc_B.YTOsize ||
120 desc_A.Csize != desc_B.Csize
121 // desc_A.CodingStyleDefault != desc_B.CodingStyleDefault ||
122 // desc_A.QuantizationDefault != desc_B.QuantizationDefault
125 notes.push_back ("video MXF picture descriptors differ");
129 // for (unsigned int j = 0; j < ASDCP::JP2K::MaxComponents; ++j) {
130 // if (desc_A.ImageComponents[j] != desc_B.ImageComponents[j]) {
131 // notes.pack_start ("video MXF picture descriptors differ");
139 MonoPictureAsset::MonoPictureAsset (
140 boost::function<string (int)> get_path,
143 boost::signals2::signal<void (float)>* progress,
149 : PictureAsset (directory, mxf_name, progress, fps, 0, length, encrypted)
153 construct (get_path);
156 MonoPictureAsset::MonoPictureAsset (
157 vector<string> const & files,
160 boost::signals2::signal<void (float)>* progress,
166 : PictureAsset (directory, mxf_name, progress, fps, 0, length, encrypted)
170 construct (boost::bind (&MonoPictureAsset::path_from_list, this, _1, files));
173 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name, int fps, int entry_point, int length)
174 : PictureAsset (directory, mxf_name, 0, fps, entry_point, length, false)
176 ASDCP::JP2K::MXFReader reader;
177 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
178 throw MXFFileError ("could not open MXF file for reading", path().string());
181 ASDCP::JP2K::PictureDescriptor desc;
182 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
183 throw DCPReadError ("could not read video MXF information");
186 _width = desc.StoredWidth;
187 _height = desc.StoredHeight;
191 MonoPictureAsset::construct (boost::function<string (int)> get_path)
193 ASDCP::JP2K::CodestreamParser j2k_parser;
194 ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
195 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (get_path(0).c_str(), frame_buffer))) {
196 throw FileError ("could not open JPEG2000 file for reading", get_path (0));
199 ASDCP::JP2K::PictureDescriptor picture_desc;
200 j2k_parser.FillPictureDescriptor (picture_desc);
201 picture_desc.EditRate = ASDCP::Rational (_fps, 1);
203 ASDCP::WriterInfo writer_info;
204 fill_writer_info (&writer_info);
206 ASDCP::JP2K::MXFWriter mxf_writer;
207 if (ASDCP_FAILURE (mxf_writer.OpenWrite (path().string().c_str(), writer_info, picture_desc))) {
208 throw MXFFileError ("could not open MXF file for writing", path().string());
211 for (int i = 0; i < _length; ++i) {
213 string const path = get_path (i);
215 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (path.c_str(), frame_buffer))) {
216 throw FileError ("could not open JPEG2000 file for reading", path);
219 if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, _encryption_context, 0))) {
220 throw MiscError ("error in writing video MXF");
224 (*_progress) (0.5 * float (i) / _length);
228 if (ASDCP_FAILURE (mxf_writer.Finalize())) {
229 throw MiscError ("error in finalising video MXF");
234 MonoPictureAsset::path_from_list (int f, vector<string> const & files) const
239 shared_ptr<const MonoPictureFrame>
240 MonoPictureAsset::get_frame (int n) const
242 return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (path().string(), n + _entry_point));
247 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<string>& notes) const
249 if (!PictureAsset::equals (other, opt, notes)) {
253 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
254 assert (other_picture);
256 for (int i = 0; i < _length; ++i) {
257 shared_ptr<const MonoPictureFrame> frame_A = get_frame (i);
258 shared_ptr<const MonoPictureFrame> frame_B = other_picture->get_frame (i);
260 if (!frame_buffer_equals (
262 frame_A->j2k_frame()->RoData(), frame_A->j2k_frame()->Size(),
263 frame_B->j2k_frame()->RoData(), frame_B->j2k_frame()->Size()
273 StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<string>& notes) const
275 if (!PictureAsset::equals (other, opt, notes)) {
279 shared_ptr<const StereoPictureAsset> other_picture = dynamic_pointer_cast<const StereoPictureAsset> (other);
280 assert (other_picture);
282 for (int i = 0; i < _length; ++i) {
283 shared_ptr<const StereoPictureFrame> frame_A = get_frame (i);
284 shared_ptr<const StereoPictureFrame> frame_B = other_picture->get_frame (i);
286 if (!frame_buffer_equals (
288 frame_A->j2k_frame()->Left.RoData(), frame_A->j2k_frame()->Left.Size(),
289 frame_B->j2k_frame()->Left.RoData(), frame_B->j2k_frame()->Left.Size()
294 if (!frame_buffer_equals (
296 frame_A->j2k_frame()->Right.RoData(), frame_A->j2k_frame()->Right.Size(),
297 frame_B->j2k_frame()->Right.RoData(), frame_B->j2k_frame()->Right.Size()
307 PictureAsset::frame_buffer_equals (
308 int frame, EqualityOptions opt, list<string>& notes, uint8_t const * data_A, unsigned int size_A, uint8_t const * data_B, unsigned int size_B
311 if (size_A == size_B && memcmp (data_A, data_B, size_A) == 0) {
312 /* Easy result; the J2K data is identical */
316 /* Decompress the images to bitmaps */
317 opj_image_t* image_A = decompress_j2k (const_cast<uint8_t*> (data_A), size_A, 0);
318 opj_image_t* image_B = decompress_j2k (const_cast<uint8_t*> (data_B), size_B, 0);
322 if (image_A->numcomps != image_B->numcomps) {
323 notes.push_back ("image component counts for frame " + lexical_cast<string>(frame) + " differ");
327 vector<int> abs_diffs (image_A->comps[0].w * image_A->comps[0].h * image_A->numcomps);
331 for (int c = 0; c < image_A->numcomps; ++c) {
333 if (image_A->comps[c].w != image_B->comps[c].w || image_A->comps[c].h != image_B->comps[c].h) {
334 notes.push_back ("image sizes for frame " + lexical_cast<string>(frame) + " differ");
338 int const pixels = image_A->comps[c].w * image_A->comps[c].h;
339 for (int j = 0; j < pixels; ++j) {
340 int const t = abs (image_A->comps[c].data[j] - image_B->comps[c].data[j]);
342 max_diff = max (max_diff, t);
347 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
351 double const mean = double (total) / abs_diffs.size ();
353 uint64_t total_squared_deviation = 0;
354 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
355 total_squared_deviation += pow (*j - mean, 2);
358 double const std_dev = sqrt (double (total_squared_deviation) / abs_diffs.size());
360 if (mean > opt.max_mean_pixel_error || std_dev > opt.max_std_dev_pixel_error) {
361 notes.push_back ("mean or standard deviation out of range for " + lexical_cast<string>(frame));
365 opj_image_destroy (image_A);
366 opj_image_destroy (image_B);
372 StereoPictureAsset::StereoPictureAsset (string directory, string mxf_name, int fps, int entry_point, int length)
373 : PictureAsset (directory, mxf_name, 0, fps, entry_point, length, false)
375 ASDCP::JP2K::MXFSReader reader;
376 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
377 throw MXFFileError ("could not open MXF file for reading", path().string());
380 ASDCP::JP2K::PictureDescriptor desc;
381 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
382 throw DCPReadError ("could not read video MXF information");
385 _width = desc.StoredWidth;
386 _height = desc.StoredHeight;
389 shared_ptr<const StereoPictureFrame>
390 StereoPictureAsset::get_frame (int n) const
392 return shared_ptr<const StereoPictureFrame> (new StereoPictureFrame (path().string(), n + _entry_point));