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"
46 using std::stringstream;
51 using boost::shared_ptr;
52 using boost::dynamic_pointer_cast;
53 using boost::lexical_cast;
54 using namespace libdcp;
56 PictureAsset::PictureAsset (string directory, string mxf_name, boost::signals2::signal<void (float)>* progress, int fps, int intrinsic_duration, bool encrypted, Size size)
57 : MXFAsset (directory, mxf_name, progress, fps, intrinsic_duration, encrypted)
63 PictureAsset::PictureAsset (string directory, string mxf_name)
64 : MXFAsset (directory, mxf_name)
70 PictureAsset::cpl_node_name () const
76 PictureAsset::write_to_cpl (xmlpp::Node* node) const
78 MXFAsset::write_to_cpl (node);
80 xmlpp::Node::NodeList c = node->get_children ();
81 xmlpp::Node::NodeList::iterator i = c.begin();
82 while (i != c.end() && (*i)->get_name() != cpl_node_name ()) {
86 assert (i != c.end ());
88 (*i)->add_child ("FrameRate")->add_child_text (lexical_cast<string> (_edit_rate) + " 1");
89 (*i)->add_child ("ScreenAspectRatio")->add_child_text (lexical_cast<string> (_size.width) + " " + lexical_cast<string> (_size.height));
93 PictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
95 if (!MXFAsset::equals (other, opt, note)) {
99 ASDCP::JP2K::MXFReader reader_A;
100 if (ASDCP_FAILURE (reader_A.OpenRead (path().string().c_str()))) {
101 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
104 ASDCP::JP2K::MXFReader reader_B;
105 if (ASDCP_FAILURE (reader_B.OpenRead (other->path().string().c_str()))) {
106 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
109 ASDCP::JP2K::PictureDescriptor desc_A;
110 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
111 boost::throw_exception (DCPReadError ("could not read video MXF information"));
113 ASDCP::JP2K::PictureDescriptor desc_B;
114 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
115 boost::throw_exception (DCPReadError ("could not read video MXF information"));
119 desc_A.EditRate != desc_B.EditRate ||
120 desc_A.ContainerDuration != desc_B.ContainerDuration ||
121 desc_A.SampleRate != desc_B.SampleRate ||
122 desc_A.StoredWidth != desc_B.StoredWidth ||
123 desc_A.StoredHeight != desc_B.StoredHeight ||
124 desc_A.AspectRatio != desc_B.AspectRatio ||
125 desc_A.Rsize != desc_B.Rsize ||
126 desc_A.Xsize != desc_B.Xsize ||
127 desc_A.Ysize != desc_B.Ysize ||
128 desc_A.XOsize != desc_B.XOsize ||
129 desc_A.YOsize != desc_B.YOsize ||
130 desc_A.XTsize != desc_B.XTsize ||
131 desc_A.YTsize != desc_B.YTsize ||
132 desc_A.XTOsize != desc_B.XTOsize ||
133 desc_A.YTOsize != desc_B.YTOsize ||
134 desc_A.Csize != desc_B.Csize
135 // desc_A.CodingStyleDefault != desc_B.CodingStyleDefault ||
136 // desc_A.QuantizationDefault != desc_B.QuantizationDefault
139 note (ERROR, "video MXF picture descriptors differ");
143 // for (unsigned int j = 0; j < ASDCP::JP2K::MaxComponents; ++j) {
144 // if (desc_A.ImageComponents[j] != desc_B.ImageComponents[j]) {
145 // notes.pack_start ("video MXF picture descriptors differ");
153 MonoPictureAsset::MonoPictureAsset (
154 boost::function<string (int)> get_path,
157 boost::signals2::signal<void (float)>* progress,
159 int intrinsic_duration,
162 MXFMetadata const & metadata
164 : PictureAsset (directory, mxf_name, progress, fps, intrinsic_duration, encrypted, size)
166 construct (get_path, metadata);
169 MonoPictureAsset::MonoPictureAsset (
170 vector<string> const & files,
173 boost::signals2::signal<void (float)>* progress,
175 int intrinsic_duration,
178 MXFMetadata const & metadata
180 : PictureAsset (directory, mxf_name, progress, fps, intrinsic_duration, encrypted, size)
182 construct (boost::bind (&MonoPictureAsset::path_from_list, this, _1, files), metadata);
185 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name, int fps, Size size)
186 : PictureAsset (directory, mxf_name, 0, fps, 0, false, size)
191 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name)
192 : PictureAsset (directory, mxf_name)
194 ASDCP::JP2K::MXFReader reader;
195 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
196 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
199 ASDCP::JP2K::PictureDescriptor desc;
200 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
201 boost::throw_exception (DCPReadError ("could not read video MXF information"));
204 _size.width = desc.StoredWidth;
205 _size.height = desc.StoredHeight;
206 _edit_rate = desc.EditRate.Numerator;
207 assert (desc.EditRate.Denominator == 1);
208 _intrinsic_duration = desc.ContainerDuration;
212 MonoPictureAsset::construct (boost::function<string (int)> get_path, MXFMetadata const & metadata)
214 ASDCP::JP2K::CodestreamParser j2k_parser;
215 ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
216 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (get_path(0).c_str(), frame_buffer))) {
217 boost::throw_exception (FileError ("could not open JPEG2000 file for reading", get_path (0)));
220 ASDCP::JP2K::PictureDescriptor picture_desc;
221 j2k_parser.FillPictureDescriptor (picture_desc);
222 picture_desc.EditRate = ASDCP::Rational (_edit_rate, 1);
224 ASDCP::WriterInfo writer_info;
225 fill_writer_info (&writer_info, _uuid, metadata);
227 ASDCP::JP2K::MXFWriter mxf_writer;
228 if (ASDCP_FAILURE (mxf_writer.OpenWrite (path().string().c_str(), writer_info, picture_desc, 16384, false))) {
229 boost::throw_exception (MXFFileError ("could not open MXF file for writing", path().string()));
232 for (int i = 0; i < _intrinsic_duration; ++i) {
234 string const path = get_path (i);
236 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (path.c_str(), frame_buffer))) {
237 boost::throw_exception (FileError ("could not open JPEG2000 file for reading", path));
240 if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, _encryption_context, 0))) {
241 boost::throw_exception (MXFFileError ("error in writing video MXF", this->path().string()));
245 (*_progress) (0.5 * float (i) / _intrinsic_duration);
249 if (ASDCP_FAILURE (mxf_writer.Finalize())) {
250 boost::throw_exception (MXFFileError ("error in finalising video MXF", path().string()));
255 MonoPictureAsset::path_from_list (int f, vector<string> const & files) const
260 shared_ptr<const MonoPictureFrame>
261 MonoPictureAsset::get_frame (int n) const
263 return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (path().string(), n, _decryption_context));
268 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
270 if (!PictureAsset::equals (other, opt, note)) {
274 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
275 assert (other_picture);
277 for (int i = 0; i < _intrinsic_duration; ++i) {
278 note (PROGRESS, "Comparing video frame " + lexical_cast<string> (i) + " of " + lexical_cast<string> (_intrinsic_duration));
279 shared_ptr<const MonoPictureFrame> frame_A = get_frame (i);
280 shared_ptr<const MonoPictureFrame> frame_B = other_picture->get_frame (i);
282 if (!frame_buffer_equals (
284 frame_A->j2k_data(), frame_A->j2k_size(),
285 frame_B->j2k_data(), frame_B->j2k_size()
295 StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
297 if (!PictureAsset::equals (other, opt, note)) {
301 shared_ptr<const StereoPictureAsset> other_picture = dynamic_pointer_cast<const StereoPictureAsset> (other);
302 assert (other_picture);
304 for (int i = 0; i < _intrinsic_duration; ++i) {
305 shared_ptr<const StereoPictureFrame> frame_A = get_frame (i);
306 shared_ptr<const StereoPictureFrame> frame_B = other_picture->get_frame (i);
308 if (!frame_buffer_equals (
310 frame_A->left_j2k_data(), frame_A->left_j2k_size(),
311 frame_B->left_j2k_data(), frame_B->left_j2k_size()
316 if (!frame_buffer_equals (
318 frame_A->right_j2k_data(), frame_A->right_j2k_size(),
319 frame_B->right_j2k_data(), frame_B->right_j2k_size()
329 PictureAsset::frame_buffer_equals (
330 int frame, EqualityOptions opt, boost::function<void (NoteType, string)> note,
331 uint8_t const * data_A, unsigned int size_A, uint8_t const * data_B, unsigned int size_B
334 if (size_A == size_B && memcmp (data_A, data_B, size_A) == 0) {
335 note (NOTE, "J2K identical");
336 /* Easy result; the J2K data is identical */
340 /* Decompress the images to bitmaps */
341 shared_ptr<XYZFrame> image_A = decompress_j2k (const_cast<uint8_t*> (data_A), size_A, 0);
342 shared_ptr<XYZFrame> image_B = decompress_j2k (const_cast<uint8_t*> (data_B), size_B, 0);
346 vector<int> abs_diffs (image_A->size().width * image_A->size().height * 3);
350 for (int c = 0; c < 3; ++c) {
352 if (image_A->size() != image_B->size()) {
353 note (ERROR, "image sizes for frame " + lexical_cast<string>(frame) + " differ");
357 int const pixels = image_A->size().width * image_A->size().height;
358 for (int j = 0; j < pixels; ++j) {
359 int const t = abs (image_A->data(c)[j] - image_B->data(c)[j]);
361 max_diff = max (max_diff, t);
366 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
370 double const mean = double (total) / abs_diffs.size ();
372 uint64_t total_squared_deviation = 0;
373 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
374 total_squared_deviation += pow (*j - mean, 2);
377 double const std_dev = sqrt (double (total_squared_deviation) / abs_diffs.size());
379 note (NOTE, "mean difference " + lexical_cast<string> (mean) + ", deviation " + lexical_cast<string> (std_dev));
381 if (mean > opt.max_mean_pixel_error) {
382 note (ERROR, "mean " + lexical_cast<string>(mean) + " out of range " + lexical_cast<string>(opt.max_mean_pixel_error) + " in frame " + lexical_cast<string>(frame));
386 if (std_dev > opt.max_std_dev_pixel_error) {
387 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));
395 StereoPictureAsset::StereoPictureAsset (string directory, string mxf_name, int fps, int intrinsic_duration)
396 : PictureAsset (directory, mxf_name, 0, fps, intrinsic_duration, false, Size (0, 0))
398 ASDCP::JP2K::MXFSReader reader;
399 if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
400 boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string()));
403 ASDCP::JP2K::PictureDescriptor desc;
404 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
405 boost::throw_exception (DCPReadError ("could not read video MXF information"));
408 _size.width = desc.StoredWidth;
409 _size.height = desc.StoredHeight;
412 shared_ptr<const StereoPictureFrame>
413 StereoPictureAsset::get_frame (int n) const
415 return shared_ptr<const StereoPictureFrame> (new StereoPictureFrame (path().string(), n));
418 shared_ptr<MonoPictureAssetWriter>
419 MonoPictureAsset::start_write (bool overwrite, MXFMetadata const & metadata)
421 /* XXX: can't we use shared_ptr here? */
422 return shared_ptr<MonoPictureAssetWriter> (new MonoPictureAssetWriter (this, overwrite, metadata));
425 FrameInfo::FrameInfo (istream& s)
427 s >> offset >> size >> hash;
431 FrameInfo::write (ostream& s)
433 s << offset << " " << size << " " << hash;
436 struct MonoPictureAssetWriter::ASDCPState
439 : frame_buffer (4 * Kumu::Megabyte)
442 ASDCP::JP2K::CodestreamParser j2k_parser;
443 ASDCP::JP2K::FrameBuffer frame_buffer;
444 ASDCP::JP2K::MXFWriter mxf_writer;
445 ASDCP::WriterInfo writer_info;
446 ASDCP::JP2K::PictureDescriptor picture_descriptor;
450 /** @param a Asset to write to. `a' must not be deleted while
451 * this writer class still exists, or bad things will happen.
453 MonoPictureAssetWriter::MonoPictureAssetWriter (MonoPictureAsset* a, bool overwrite, MXFMetadata const & m)
454 : _state (new MonoPictureAssetWriter::ASDCPState)
456 , _frames_written (0)
459 , _overwrite (overwrite)
467 MonoPictureAssetWriter::start (uint8_t* data, int size)
469 if (ASDCP_FAILURE (_state->j2k_parser.OpenReadFrame (data, size, _state->frame_buffer))) {
470 boost::throw_exception (MiscError ("could not parse J2K frame"));
473 _state->j2k_parser.FillPictureDescriptor (_state->picture_descriptor);
474 _state->picture_descriptor.EditRate = ASDCP::Rational (_asset->edit_rate(), 1);
476 _asset->fill_writer_info (&_state->writer_info, _asset->uuid(), _metadata);
478 if (ASDCP_FAILURE (_state->mxf_writer.OpenWrite (
479 _asset->path().string().c_str(),
481 _state->picture_descriptor,
486 boost::throw_exception (MXFFileError ("could not open MXF file for writing", _asset->path().string()));
493 MonoPictureAssetWriter::write (uint8_t* data, int size)
495 assert (!_finalized);
501 if (ASDCP_FAILURE (_state->j2k_parser.OpenReadFrame (data, size, _state->frame_buffer))) {
502 boost::throw_exception (MiscError ("could not parse J2K frame"));
505 uint64_t const before_offset = _state->mxf_writer.Tell ();
508 if (ASDCP_FAILURE (_state->mxf_writer.WriteFrame (_state->frame_buffer, 0, 0, &hash))) {
509 boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string()));
513 return FrameInfo (before_offset, _state->mxf_writer.Tell() - before_offset, hash);
517 MonoPictureAssetWriter::fake_write (int size)
520 assert (!_finalized);
522 if (ASDCP_FAILURE (_state->mxf_writer.FakeWriteFrame (size))) {
523 boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string()));
530 MonoPictureAssetWriter::finalize ()
532 assert (!_finalized);
534 if (ASDCP_FAILURE (_state->mxf_writer.Finalize())) {
535 boost::throw_exception (MXFFileError ("error in finalizing video MXF", _asset->path().string()));
539 _asset->set_intrinsic_duration (_frames_written);
540 _asset->set_duration (_frames_written);
544 PictureAsset::key_type () const