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>
33 #include "KM_fileio.h"
34 #include "picture_asset.h"
36 #include "exceptions.h"
37 #include "picture_frame.h"
44 using boost::shared_ptr;
45 using boost::dynamic_pointer_cast;
46 using boost::lexical_cast;
47 using namespace libdcp;
49 PictureAsset::PictureAsset (string directory, string mxf_name, boost::signals2::signal<void (float)>* progress, int fps, int entry_point, int length, bool encrypted)
50 : MXFAsset (directory, mxf_name, progress, fps, entry_point, length, encrypted)
58 PictureAsset::write_to_cpl (ostream& s) const
60 s << " <MainPicture>\n"
61 << " <Id>urn:uuid:" << _uuid << "</Id>\n"
62 << " <AnnotationText>" << _file_name << "</AnnotationText>\n"
63 << " <EditRate>" << _fps << " 1</EditRate>\n"
64 << " <IntrinsicDuration>" << _length << "</IntrinsicDuration>\n"
65 << " <EntryPoint>0</EntryPoint>\n"
66 << " <Duration>" << _length << "</Duration>\n"
67 << " <FrameRate>" << _fps << " 1</FrameRate>\n"
68 << " <ScreenAspectRatio>" << _width << " " << _height << "</ScreenAspectRatio>\n"
69 << " </MainPicture>\n";
73 PictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<string>& notes) const
75 if (!MXFAsset::equals (other, opt, notes)) {
79 ASDCP::JP2K::MXFReader reader_A;
80 if (ASDCP_FAILURE (reader_A.OpenRead (path().string().c_str()))) {
81 throw MXFFileError ("could not open MXF file for reading", path().string());
84 ASDCP::JP2K::MXFReader reader_B;
85 if (ASDCP_FAILURE (reader_B.OpenRead (other->path().string().c_str()))) {
86 throw MXFFileError ("could not open MXF file for reading", path().string());
89 ASDCP::JP2K::PictureDescriptor desc_A;
90 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
91 throw DCPReadError ("could not read video MXF information");
93 ASDCP::JP2K::PictureDescriptor desc_B;
94 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
95 throw DCPReadError ("could not read video MXF information");
99 desc_A.EditRate != desc_B.EditRate ||
100 desc_A.ContainerDuration != desc_B.ContainerDuration ||
101 desc_A.SampleRate != desc_B.SampleRate ||
102 desc_A.StoredWidth != desc_B.StoredWidth ||
103 desc_A.StoredHeight != desc_B.StoredHeight ||
104 desc_A.AspectRatio != desc_B.AspectRatio ||
105 desc_A.Rsize != desc_B.Rsize ||
106 desc_A.Xsize != desc_B.Xsize ||
107 desc_A.Ysize != desc_B.Ysize ||
108 desc_A.XOsize != desc_B.XOsize ||
109 desc_A.YOsize != desc_B.YOsize ||
110 desc_A.XTsize != desc_B.XTsize ||
111 desc_A.YTsize != desc_B.YTsize ||
112 desc_A.XTOsize != desc_B.XTOsize ||
113 desc_A.YTOsize != desc_B.YTOsize ||
114 desc_A.Csize != desc_B.Csize
115 // desc_A.CodingStyleDefault != desc_B.CodingStyleDefault ||
116 // desc_A.QuantizationDefault != desc_B.QuantizationDefault
119 notes.push_back ("video MXF picture descriptors differ");
123 // for (unsigned int j = 0; j < ASDCP::JP2K::MaxComponents; ++j) {
124 // if (desc_A.ImageComponents[j] != desc_B.ImageComponents[j]) {
125 // notes.pack_start ("video MXF picture descriptors differ");
133 MonoPictureAsset::MonoPictureAsset (
134 boost::function<string (int)> get_path,
137 boost::signals2::signal<void (float)>* progress,
143 : PictureAsset (directory, mxf_name, progress, fps, 0, length, encrypted)
147 construct (get_path);
150 MonoPictureAsset::MonoPictureAsset (
151 vector<string> const & files,
154 boost::signals2::signal<void (float)>* progress,
160 : PictureAsset (directory, mxf_name, progress, fps, 0, length, encrypted)
164 construct (boost::bind (&MonoPictureAsset::path_from_list, this, _1, files));
167 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name, int fps, int entry_point, int length)
168 : PictureAsset (directory, mxf_name, 0, fps, entry_point, length, false)
170 ASDCP::JP2K::MXFReader reader;
171 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
172 throw MXFFileError ("could not open MXF file for reading", path().string());
175 ASDCP::JP2K::PictureDescriptor desc;
176 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
177 throw DCPReadError ("could not read video MXF information");
180 _width = desc.StoredWidth;
181 _height = desc.StoredHeight;
185 MonoPictureAsset::construct (boost::function<string (int)> get_path)
187 ASDCP::JP2K::CodestreamParser j2k_parser;
188 ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
189 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (get_path(0).c_str(), frame_buffer))) {
190 throw FileError ("could not open JPEG2000 file for reading", get_path (0));
193 ASDCP::JP2K::PictureDescriptor picture_desc;
194 j2k_parser.FillPictureDescriptor (picture_desc);
195 picture_desc.EditRate = ASDCP::Rational (_fps, 1);
197 ASDCP::WriterInfo writer_info;
198 fill_writer_info (&writer_info);
200 ASDCP::JP2K::MXFWriter mxf_writer;
201 if (ASDCP_FAILURE (mxf_writer.OpenWrite (path().string().c_str(), writer_info, picture_desc))) {
202 throw MXFFileError ("could not open MXF file for writing", path().string());
205 for (int i = 0; i < _length; ++i) {
207 string const path = get_path (i);
209 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (path.c_str(), frame_buffer))) {
210 throw FileError ("could not open JPEG2000 file for reading", path);
213 if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, _encryption_context, 0))) {
214 throw MiscError ("error in writing video MXF");
218 (*_progress) (0.5 * float (i) / _length);
222 if (ASDCP_FAILURE (mxf_writer.Finalize())) {
223 throw MiscError ("error in finalising video MXF");
228 MonoPictureAsset::path_from_list (int f, vector<string> const & files) const
233 shared_ptr<const MonoPictureFrame>
234 MonoPictureAsset::get_frame (int n) const
236 return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (path().string(), n + _entry_point));
241 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<string>& notes) const
243 if (!PictureAsset::equals (other, opt, notes)) {
247 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
248 assert (other_picture);
250 for (int i = 0; i < _length; ++i) {
251 shared_ptr<const MonoPictureFrame> frame_A = get_frame (i);
252 shared_ptr<const MonoPictureFrame> frame_B = other_picture->get_frame (i);
254 if (!frame_buffer_equals (
256 frame_A->j2k_frame()->RoData(), frame_A->j2k_frame()->Size(),
257 frame_B->j2k_frame()->RoData(), frame_B->j2k_frame()->Size()
267 StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<string>& notes) const
269 if (!PictureAsset::equals (other, opt, notes)) {
273 shared_ptr<const StereoPictureAsset> other_picture = dynamic_pointer_cast<const StereoPictureAsset> (other);
274 assert (other_picture);
276 for (int i = 0; i < _length; ++i) {
277 shared_ptr<const StereoPictureFrame> frame_A = get_frame (i);
278 shared_ptr<const StereoPictureFrame> frame_B = other_picture->get_frame (i);
280 if (!frame_buffer_equals (
282 frame_A->j2k_frame()->Left.RoData(), frame_A->j2k_frame()->Left.Size(),
283 frame_B->j2k_frame()->Left.RoData(), frame_B->j2k_frame()->Left.Size()
288 if (!frame_buffer_equals (
290 frame_A->j2k_frame()->Right.RoData(), frame_A->j2k_frame()->Right.Size(),
291 frame_B->j2k_frame()->Right.RoData(), frame_B->j2k_frame()->Right.Size()
301 PictureAsset::frame_buffer_equals (
302 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
305 if (size_A == size_B && memcmp (data_A, data_B, size_A) == 0) {
306 /* Easy result; the J2K data is identical */
310 /* Decompress the images to bitmaps */
311 opj_image_t* image_A = decompress_j2k (const_cast<uint8_t*> (data_A), size_A, 0);
312 opj_image_t* image_B = decompress_j2k (const_cast<uint8_t*> (data_B), size_B, 0);
316 if (image_A->numcomps != image_B->numcomps) {
317 notes.push_back ("image component counts for frame " + lexical_cast<string>(frame) + " differ");
321 vector<int> abs_diffs (image_A->comps[0].w * image_A->comps[0].h * image_A->numcomps);
325 for (int c = 0; c < image_A->numcomps; ++c) {
327 if (image_A->comps[c].w != image_B->comps[c].w || image_A->comps[c].h != image_B->comps[c].h) {
328 notes.push_back ("image sizes for frame " + lexical_cast<string>(frame) + " differ");
332 int const pixels = image_A->comps[c].w * image_A->comps[c].h;
333 for (int j = 0; j < pixels; ++j) {
334 int const t = abs (image_A->comps[c].data[j] - image_B->comps[c].data[j]);
336 max_diff = max (max_diff, t);
341 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
345 double const mean = double (total) / abs_diffs.size ();
347 uint64_t total_squared_deviation = 0;
348 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
349 total_squared_deviation += pow (*j - mean, 2);
352 double const std_dev = sqrt (double (total_squared_deviation) / abs_diffs.size());
354 if (mean > opt.max_mean_pixel_error || std_dev > opt.max_std_dev_pixel_error) {
355 notes.push_back ("mean or standard deviation out of range for " + lexical_cast<string>(frame));
359 opj_image_destroy (image_A);
360 opj_image_destroy (image_B);
366 StereoPictureAsset::StereoPictureAsset (string directory, string mxf_name, int fps, int entry_point, int length)
367 : PictureAsset (directory, mxf_name, 0, fps, entry_point, length, false)
369 ASDCP::JP2K::MXFSReader reader;
370 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
371 throw MXFFileError ("could not open MXF file for reading", path().string());
374 ASDCP::JP2K::PictureDescriptor desc;
375 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
376 throw DCPReadError ("could not read video MXF information");
379 _width = desc.StoredWidth;
380 _height = desc.StoredHeight;
383 shared_ptr<const StereoPictureFrame>
384 StereoPictureAsset::get_frame (int n) const
386 return shared_ptr<const StereoPictureFrame> (new StereoPictureFrame (path().string(), n + _entry_point));