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"
39 #include "xyz_frame.h"
40 #include "picture_asset_writer.h"
47 using std::stringstream;
52 using boost::shared_ptr;
53 using boost::dynamic_pointer_cast;
54 using boost::lexical_cast;
55 using namespace libdcp;
57 PictureAsset::PictureAsset (string directory, string mxf_name, boost::signals2::signal<void (float)>* progress, int fps, int intrinsic_duration, bool encrypted, Size size)
58 : MXFAsset (directory, mxf_name, progress, fps, intrinsic_duration, encrypted)
64 PictureAsset::PictureAsset (string directory, string mxf_name)
65 : MXFAsset (directory, mxf_name)
71 MonoPictureAsset::cpl_node_name () const
77 MonoPictureAsset::edit_rate_factor () const
83 StereoPictureAsset::cpl_node_name () const
85 return "MainStereoscopicPicture";
89 StereoPictureAsset::edit_rate_factor () const
95 PictureAsset::write_to_cpl (xmlpp::Node* node, bool interop) const
97 MXFAsset::write_to_cpl (node);
99 xmlpp::Node::NodeList c = node->get_children ();
100 xmlpp::Node::NodeList::iterator i = c.begin();
101 while (i != c.end() && (*i)->get_name() != cpl_node_name ()) {
105 assert (i != c.end ());
107 (*i)->add_child ("FrameRate")->add_child_text (lexical_cast<string> (_edit_rate * edit_rate_factor ()) + " 1");
109 (*i)->add_child ("ScreenAspectRatio")->add_child_text (lexical_cast<string> (float (_size.width) / _size.height));
111 (*i)->add_child ("ScreenAspectRatio")->add_child_text (lexical_cast<string> (_size.width) + " " + lexical_cast<string> (_size.height));
116 PictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
118 if (!MXFAsset::equals (other, opt, note)) {
122 ASDCP::JP2K::MXFReader reader_A;
123 if (ASDCP_FAILURE (reader_A.OpenRead (path().string().c_str()))) {
124 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
127 ASDCP::JP2K::MXFReader reader_B;
128 if (ASDCP_FAILURE (reader_B.OpenRead (other->path().string().c_str()))) {
129 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
132 ASDCP::JP2K::PictureDescriptor desc_A;
133 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
134 boost::throw_exception (DCPReadError ("could not read video MXF information"));
136 ASDCP::JP2K::PictureDescriptor desc_B;
137 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
138 boost::throw_exception (DCPReadError ("could not read video MXF information"));
142 desc_A.EditRate != desc_B.EditRate ||
143 desc_A.SampleRate != desc_B.SampleRate ||
144 desc_A.StoredWidth != desc_B.StoredWidth ||
145 desc_A.StoredHeight != desc_B.StoredHeight ||
146 desc_A.AspectRatio != desc_B.AspectRatio ||
147 desc_A.Rsize != desc_B.Rsize ||
148 desc_A.Xsize != desc_B.Xsize ||
149 desc_A.Ysize != desc_B.Ysize ||
150 desc_A.XOsize != desc_B.XOsize ||
151 desc_A.YOsize != desc_B.YOsize ||
152 desc_A.XTsize != desc_B.XTsize ||
153 desc_A.YTsize != desc_B.YTsize ||
154 desc_A.XTOsize != desc_B.XTOsize ||
155 desc_A.YTOsize != desc_B.YTOsize ||
156 desc_A.Csize != desc_B.Csize
157 // desc_A.CodingStyleDefault != desc_B.CodingStyleDefault ||
158 // desc_A.QuantizationDefault != desc_B.QuantizationDefault
161 note (ERROR, "video MXF picture descriptors differ");
165 if (desc_A.ContainerDuration != desc_B.ContainerDuration) {
166 note (ERROR, "video container durations differ");
169 // for (unsigned int j = 0; j < ASDCP::JP2K::MaxComponents; ++j) {
170 // if (desc_A.ImageComponents[j] != desc_B.ImageComponents[j]) {
171 // notes.pack_start ("video MXF picture descriptors differ");
179 MonoPictureAsset::MonoPictureAsset (
180 boost::function<string (int)> get_path,
183 boost::signals2::signal<void (float)>* progress,
185 int intrinsic_duration,
189 MXFMetadata const & metadata
191 : PictureAsset (directory, mxf_name, progress, fps, intrinsic_duration, encrypted, size)
193 construct (get_path, interop, metadata);
196 MonoPictureAsset::MonoPictureAsset (
197 vector<string> const & files,
200 boost::signals2::signal<void (float)>* progress,
202 int intrinsic_duration,
206 MXFMetadata const & metadata
208 : PictureAsset (directory, mxf_name, progress, fps, intrinsic_duration, encrypted, size)
210 construct (boost::bind (&MonoPictureAsset::path_from_list, this, _1, files), interop, metadata);
213 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name, int fps, Size size)
214 : PictureAsset (directory, mxf_name, 0, fps, 0, false, size)
219 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name)
220 : PictureAsset (directory, mxf_name)
222 ASDCP::JP2K::MXFReader reader;
223 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
224 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
227 ASDCP::JP2K::PictureDescriptor desc;
228 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
229 boost::throw_exception (DCPReadError ("could not read video MXF information"));
232 _size.width = desc.StoredWidth;
233 _size.height = desc.StoredHeight;
234 _edit_rate = desc.EditRate.Numerator;
235 assert (desc.EditRate.Denominator == 1);
236 _intrinsic_duration = desc.ContainerDuration;
240 MonoPictureAsset::construct (boost::function<string (int)> get_path, bool interop, MXFMetadata const & metadata)
242 ASDCP::JP2K::CodestreamParser j2k_parser;
243 ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
244 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (get_path(0).c_str(), frame_buffer))) {
245 boost::throw_exception (FileError ("could not open JPEG2000 file for reading", get_path (0)));
248 ASDCP::JP2K::PictureDescriptor picture_desc;
249 j2k_parser.FillPictureDescriptor (picture_desc);
250 picture_desc.EditRate = ASDCP::Rational (_edit_rate, 1);
252 ASDCP::WriterInfo writer_info;
253 fill_writer_info (&writer_info, _uuid, interop, metadata);
255 ASDCP::JP2K::MXFWriter mxf_writer;
256 if (ASDCP_FAILURE (mxf_writer.OpenWrite (path().string().c_str(), writer_info, picture_desc, 16384, false))) {
257 boost::throw_exception (MXFFileError ("could not open MXF file for writing", path().string()));
260 for (int i = 0; i < _intrinsic_duration; ++i) {
262 string const path = get_path (i);
264 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (path.c_str(), frame_buffer))) {
265 boost::throw_exception (FileError ("could not open JPEG2000 file for reading", path));
268 if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, _encryption_context, 0))) {
269 boost::throw_exception (MXFFileError ("error in writing video MXF", this->path().string()));
273 (*_progress) (0.5 * float (i) / _intrinsic_duration);
277 if (ASDCP_FAILURE (mxf_writer.Finalize())) {
278 boost::throw_exception (MXFFileError ("error in finalising video MXF", path().string()));
283 MonoPictureAsset::path_from_list (int f, vector<string> const & files) const
288 shared_ptr<const MonoPictureFrame>
289 MonoPictureAsset::get_frame (int n) const
291 return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (path().string(), n, _decryption_context));
296 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
298 if (!PictureAsset::equals (other, opt, note)) {
302 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
303 assert (other_picture);
305 for (int i = 0; i < _intrinsic_duration; ++i) {
306 if (i >= other_picture->intrinsic_duration()) {
310 note (PROGRESS, "Comparing video frame " + lexical_cast<string> (i) + " of " + lexical_cast<string> (_intrinsic_duration));
311 shared_ptr<const MonoPictureFrame> frame_A = get_frame (i);
312 shared_ptr<const MonoPictureFrame> frame_B = other_picture->get_frame (i);
314 if (!frame_buffer_equals (
316 frame_A->j2k_data(), frame_A->j2k_size(),
317 frame_B->j2k_data(), frame_B->j2k_size()
327 StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
329 if (!PictureAsset::equals (other, opt, note)) {
333 shared_ptr<const StereoPictureAsset> other_picture = dynamic_pointer_cast<const StereoPictureAsset> (other);
334 assert (other_picture);
336 for (int i = 0; i < _intrinsic_duration; ++i) {
337 shared_ptr<const StereoPictureFrame> frame_A = get_frame (i);
338 shared_ptr<const StereoPictureFrame> frame_B = other_picture->get_frame (i);
340 if (!frame_buffer_equals (
342 frame_A->left_j2k_data(), frame_A->left_j2k_size(),
343 frame_B->left_j2k_data(), frame_B->left_j2k_size()
348 if (!frame_buffer_equals (
350 frame_A->right_j2k_data(), frame_A->right_j2k_size(),
351 frame_B->right_j2k_data(), frame_B->right_j2k_size()
361 PictureAsset::frame_buffer_equals (
362 int frame, EqualityOptions opt, boost::function<void (NoteType, string)> note,
363 uint8_t const * data_A, unsigned int size_A, uint8_t const * data_B, unsigned int size_B
366 if (size_A == size_B && memcmp (data_A, data_B, size_A) == 0) {
367 note (NOTE, "J2K identical");
368 /* Easy result; the J2K data is identical */
372 /* Decompress the images to bitmaps */
373 shared_ptr<XYZFrame> image_A = decompress_j2k (const_cast<uint8_t*> (data_A), size_A, 0);
374 shared_ptr<XYZFrame> image_B = decompress_j2k (const_cast<uint8_t*> (data_B), size_B, 0);
378 vector<int> abs_diffs (image_A->size().width * image_A->size().height * 3);
382 for (int c = 0; c < 3; ++c) {
384 if (image_A->size() != image_B->size()) {
385 note (ERROR, "image sizes for frame " + lexical_cast<string>(frame) + " differ");
389 int const pixels = image_A->size().width * image_A->size().height;
390 for (int j = 0; j < pixels; ++j) {
391 int const t = abs (image_A->data(c)[j] - image_B->data(c)[j]);
393 max_diff = max (max_diff, t);
398 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
402 double const mean = double (total) / abs_diffs.size ();
404 uint64_t total_squared_deviation = 0;
405 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
406 total_squared_deviation += pow (*j - mean, 2);
409 double const std_dev = sqrt (double (total_squared_deviation) / abs_diffs.size());
411 note (NOTE, "mean difference " + lexical_cast<string> (mean) + ", deviation " + lexical_cast<string> (std_dev));
413 if (mean > opt.max_mean_pixel_error) {
414 note (ERROR, "mean " + lexical_cast<string>(mean) + " out of range " + lexical_cast<string>(opt.max_mean_pixel_error) + " in frame " + lexical_cast<string>(frame));
418 if (std_dev > opt.max_std_dev_pixel_error) {
419 note (ERROR, "standard deviation " + lexical_cast<string>(std_dev) + " out of range " + lexical_cast<string>(opt.max_std_dev_pixel_error) + " in frame " + lexical_cast<string>(frame));
427 StereoPictureAsset::StereoPictureAsset (string directory, string mxf_name, int fps, int intrinsic_duration)
428 : PictureAsset (directory, mxf_name, 0, fps, intrinsic_duration, false, Size (0, 0))
430 ASDCP::JP2K::MXFSReader reader;
431 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
432 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
435 ASDCP::JP2K::PictureDescriptor desc;
436 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
437 boost::throw_exception (DCPReadError ("could not read video MXF information"));
440 _size.width = desc.StoredWidth;
441 _size.height = desc.StoredHeight;
444 shared_ptr<const StereoPictureFrame>
445 StereoPictureAsset::get_frame (int n) const
447 return shared_ptr<const StereoPictureFrame> (new StereoPictureFrame (path().string(), n));
450 shared_ptr<PictureAssetWriter>
451 MonoPictureAsset::start_write (bool overwrite, bool interop, MXFMetadata const & metadata)
453 /* XXX: can't we use shared_ptr here? */
454 return shared_ptr<MonoPictureAssetWriter> (new MonoPictureAssetWriter (this, overwrite, interop, metadata));
458 PictureAsset::key_type () const
463 StereoPictureAsset::StereoPictureAsset (string directory, string mxf_name, int fps, Size size)
464 : PictureAsset (directory, mxf_name, 0, fps, 0, false, size)
469 shared_ptr<PictureAssetWriter>
470 StereoPictureAsset::start_write (bool overwrite, bool interop, MXFMetadata const & metadata)
472 /* XXX: can't we use shared_ptr here? */
473 return shared_ptr<StereoPictureAssetWriter> (new StereoPictureAssetWriter (this, overwrite, interop, metadata));