src/picture_asset.cc

   1 /*
   2     Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
   3
   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.
   8
   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.
  13
  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.
  17
  18 */
  19
  20 /** @file  src/picture_asset.cc
  21  *  @brief An asset made up of JPEG2000 files
  22  */
  23
  24 #include <list>
  25 #include <stdexcept>
  26 #include <iostream>
  27 #include <sstream>
  28 #include <fstream>
  29 #include <boost/filesystem.hpp>
  30 #include <boost/lexical_cast.hpp>
  31 #include <openjpeg.h>
  32 #include "AS_DCP.h"
  33 #include "KM_fileio.h"
  34 #include "picture_asset.h"
  35 #include "util.h"
  36 #include "exceptions.h"
  37 #include "picture_frame.h"
  38
  39 using namespace std;
  40 using namespace boost;
  41 using namespace libdcp;
  42
  43 PictureAsset::PictureAsset (string directory, string mxf_name, sigc::signal1<void, float>* progress, int fps, int entry_point, int length)
  44         : MXFAsset (directory, mxf_name, progress, fps, entry_point, length)
  45         , _width (0)
  46         , _height (0)
  47 {
  48
  49 }
  50
  51 void
  52 PictureAsset::write_to_cpl (ostream& s) const
  53 {
  54         s << "        <MainPicture>\n"
  55           << "          <Id>urn:uuid:" << _uuid << "</Id>\n"
  56           << "          <AnnotationText>" << _file_name << "</AnnotationText>\n"
  57           << "          <EditRate>" << _fps << " 1</EditRate>\n"
  58           << "          <IntrinsicDuration>" << _length << "</IntrinsicDuration>\n"
  59           << "          <EntryPoint>0</EntryPoint>\n"
  60           << "          <Duration>" << _length << "</Duration>\n"
  61           << "          <FrameRate>" << _fps << " 1</FrameRate>\n"
  62           << "          <ScreenAspectRatio>" << _width << " " << _height << "</ScreenAspectRatio>\n"
  63           << "        </MainPicture>\n";
  64 }
  65
  66 /* XXX: could use get_frame()? */
  67 list<string>
  68 PictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt) const
  69 {
  70         list<string> notes = MXFAsset::equals (other, opt);
  71
  72         if (opt.flags & MXF_INSPECT) {
  73                 ASDCP::JP2K::MXFReader reader_A;
  74                 if (ASDCP_FAILURE (reader_A.OpenRead (path().string().c_str()))) {
  75                         throw FileError ("could not open MXF file for reading", path().string());
  76                 }
  77
  78                 ASDCP::JP2K::MXFReader reader_B;
  79                 if (ASDCP_FAILURE (reader_B.OpenRead (other->path().string().c_str()))) {
  80                         throw FileError ("could not open MXF file for reading", path().string());
  81                 }
  82
  83                 ASDCP::JP2K::PictureDescriptor desc_A;
  84                 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
  85                         throw DCPReadError ("could not read video MXF information");
  86                 }
  87                 ASDCP::JP2K::PictureDescriptor desc_B;
  88                 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
  89                         throw DCPReadError ("could not read video MXF information");
  90                 }
  91
  92                 if (
  93                         desc_A.EditRate != desc_B.EditRate ||
  94                         desc_A.ContainerDuration != desc_B.ContainerDuration ||
  95                         desc_A.SampleRate != desc_B.SampleRate ||
  96                         desc_A.StoredWidth != desc_B.StoredWidth ||
  97                         desc_A.StoredHeight != desc_B.StoredHeight ||
  98                         desc_A.AspectRatio != desc_B.AspectRatio ||
  99                         desc_A.Rsize != desc_B.Rsize ||
 100                         desc_A.Xsize != desc_B.Xsize ||
 101                         desc_A.Ysize != desc_B.Ysize ||
 102                         desc_A.XOsize != desc_B.XOsize ||
 103                         desc_A.YOsize != desc_B.YOsize ||
 104                         desc_A.XTsize != desc_B.XTsize ||
 105                         desc_A.YTsize != desc_B.YTsize ||
 106                         desc_A.XTOsize != desc_B.XTOsize ||
 107                         desc_A.YTOsize != desc_B.YTOsize ||
 108                         desc_A.Csize != desc_B.Csize
 109 //                      desc_A.CodingStyleDefault != desc_B.CodingStyleDefault ||
 110 //                      desc_A.QuantizationDefault != desc_B.QuantizationDefault
 111                         ) {
 112
 113                         notes.push_back ("video MXF picture descriptors differ");
 114                 }
 115
 116 //              for (unsigned int j = 0; j < ASDCP::JP2K::MaxComponents; ++j) {
 117 //                      if (desc_A.ImageComponents[j] != desc_B.ImageComponents[j]) {
 118 //                              notes.pack_start ("video MXF picture descriptors differ");
 119 //                      }
 120 //              }
 121
 122
 123                 ASDCP::JP2K::FrameBuffer buffer_A (4 * Kumu::Megabyte);
 124                 ASDCP::JP2K::FrameBuffer buffer_B (4 * Kumu::Megabyte);
 125
 126                 for (int i = 0; i < _length; ++i) {
 127                         if (ASDCP_FAILURE (reader_A.ReadFrame (i, buffer_A))) {
 128                                 throw DCPReadError ("could not read video frame");
 129                         }
 130
 131                         if (ASDCP_FAILURE (reader_B.ReadFrame (i, buffer_B))) {
 132                                 throw DCPReadError ("could not read video frame");
 133                         }
 134
 135                         bool j2k_same = true;
 136
 137                         if (buffer_A.Size() != buffer_B.Size()) {
 138                                 notes.push_back ("sizes of video data for frame " + lexical_cast<string>(i) + " differ");
 139                                 j2k_same = false;
 140                         } else if (memcmp (buffer_A.RoData(), buffer_B.RoData(), buffer_A.Size()) != 0) {
 141                                 notes.push_back ("J2K data for frame " + lexical_cast<string>(i) + " differ");
 142                                 j2k_same = false;
 143                         }
 144
 145                         if (!j2k_same) {
 146
 147                                 if (opt.verbose) {
 148                                         cout << "J2K images for " << i << " differ; checking by pixel\n";
 149                                 }
 150
 151                                 /* Decompress the images to bitmaps */
 152                                 opj_image_t* image_A = decompress_j2k (const_cast<uint8_t*> (buffer_A.RoData()), buffer_A.Size ());
 153                                 opj_image_t* image_B = decompress_j2k (const_cast<uint8_t*> (buffer_B.RoData()), buffer_B.Size ());
 154
 155                                 /* Compare them */
 156
 157                                 if (image_A->numcomps != image_B->numcomps) {
 158                                         notes.push_back ("image component counts for frame " + lexical_cast<string>(i) + " differ");
 159                                 }
 160
 161                                 vector<int> abs_diffs (image_A->comps[0].w * image_A->comps[0].h * image_A->numcomps);
 162                                 int d = 0;
 163                                 int max_diff = 0;
 164
 165                                 for (int c = 0; c < image_A->numcomps; ++c) {
 166
 167                                         if (image_A->comps[c].w != image_B->comps[c].w || image_A->comps[c].h != image_B->comps[c].h) {
 168                                                 notes.push_back ("image sizes for frame " + lexical_cast<string>(i) + " differ");
 169                                         }
 170
 171                                         int const pixels = image_A->comps[c].w * image_A->comps[c].h;
 172                                         for (int j = 0; j < pixels; ++j) {
 173                                                 int const t = abs (image_A->comps[c].data[j] - image_B->comps[c].data[j]);
 174                                                 abs_diffs[d++] = t;
 175                                                 max_diff = max (max_diff, t);
 176                                         }
 177                                 }
 178
 179                                 uint64_t total = 0;
 180                                 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
 181                                         total += *j;
 182                                 }
 183
 184                                 double const mean = double (total) / abs_diffs.size ();
 185
 186                                 uint64_t total_squared_deviation = 0;
 187                                 for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
 188                                         total_squared_deviation += pow (*j - mean, 2);
 189                                 }
 190
 191                                 double const std_dev = sqrt (double (total_squared_deviation) / abs_diffs.size());
 192
 193                                 if (mean > opt.max_mean_pixel_error || std_dev > opt.max_std_dev_pixel_error) {
 194                                         notes.push_back ("mean or standard deviation out of range for " + lexical_cast<string>(i));
 195                                 }
 196
 197                                 if (opt.verbose) {
 198                                         cout << "\tmax pixel error " << max_diff << ", mean pixel error " << mean << ", standard deviation " << std_dev << "\n";
 199                                 }
 200
 201                                 opj_image_destroy (image_A);
 202                                 opj_image_destroy (image_B);
 203                         }
 204                 }
 205         }
 206
 207         return notes;
 208 }
 209
 210 MonoPictureAsset::MonoPictureAsset (
 211         sigc::slot<string, int> get_path,
 212         string directory,
 213         string mxf_name,
 214         sigc::signal1<void, float>* progress,
 215         int fps,
 216         int length,
 217         int width,
 218         int height)
 219         : PictureAsset (directory, mxf_name, progress, fps, 0, length)
 220 {
 221         _width = width;
 222         _height = height;
 223         construct (get_path);
 224 }
 225
 226 MonoPictureAsset::MonoPictureAsset (
 227         vector<string> const & files,
 228         string directory,
 229         string mxf_name,
 230         sigc::signal1<void, float>* progress,
 231         int fps,
 232         int length,
 233         int width,
 234         int height)
 235         : PictureAsset (directory, mxf_name, progress, fps, 0, length)
 236 {
 237         _width = width;
 238         _height = height;
 239         construct (sigc::bind (sigc::mem_fun (*this, &MonoPictureAsset::path_from_list), files));
 240 }
 241
 242 MonoPictureAsset::MonoPictureAsset (string directory, string mxf_name, int fps, int entry_point, int length)
 243         : PictureAsset (directory, mxf_name, 0, fps, entry_point, length)
 244 {
 245         ASDCP::JP2K::MXFReader reader;
 246         if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
 247                 throw FileError ("could not open MXF file for reading", path().string());
 248         }
 249
 250         ASDCP::JP2K::PictureDescriptor desc;
 251         if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
 252                 throw DCPReadError ("could not read video MXF information");
 253         }
 254
 255         _width = desc.StoredWidth;
 256         _height = desc.StoredHeight;
 257 }
 258
 259 void
 260 MonoPictureAsset::construct (sigc::slot<string, int> get_path)
 261 {
 262         ASDCP::JP2K::CodestreamParser j2k_parser;
 263         ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
 264         if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (get_path(0).c_str(), frame_buffer))) {
 265                 throw FileError ("could not open JPEG2000 file for reading", get_path (0));
 266         }
 267
 268         ASDCP::JP2K::PictureDescriptor picture_desc;
 269         j2k_parser.FillPictureDescriptor (picture_desc);
 270         picture_desc.EditRate = ASDCP::Rational (_fps, 1);
 271
 272         ASDCP::WriterInfo writer_info;
 273         fill_writer_info (&writer_info);
 274
 275         ASDCP::JP2K::MXFWriter mxf_writer;
 276         if (ASDCP_FAILURE (mxf_writer.OpenWrite (path().string().c_str(), writer_info, picture_desc))) {
 277                 throw FileError ("could not open MXF file for writing", path().string());
 278         }
 279
 280         for (int i = 0; i < _length; ++i) {
 281
 282                 string const path = get_path (i);
 283
 284                 cout << "reading " << path << "\n";
 285
 286                 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (path.c_str(), frame_buffer))) {
 287                         throw FileError ("could not open JPEG2000 file for reading", path);
 288                 }
 289
 290                 /* XXX: passing 0 to WriteFrame ok? */
 291                 if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, 0, 0))) {
 292                         throw MiscError ("error in writing video MXF");
 293                 }
 294
 295                 if (_progress) {
 296                         (*_progress) (0.5 * float (i) / _length);
 297                 }
 298         }
 299
 300         if (ASDCP_FAILURE (mxf_writer.Finalize())) {
 301                 throw MiscError ("error in finalising video MXF");
 302         }
 303 }
 304
 305 string
 306 MonoPictureAsset::path_from_list (int f, vector<string> const & files) const
 307 {
 308         return files[f];
 309 }
 310
 311 shared_ptr<const MonoPictureFrame>
 312 MonoPictureAsset::get_frame (int n) const
 313 {
 314         return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (path().string(), n + _entry_point));
 315 }
 316
 317 StereoPictureAsset::StereoPictureAsset (string directory, string mxf_name, int fps, int entry_point, int length)
 318         : PictureAsset (directory, mxf_name, 0, fps, entry_point, length)
 319 {
 320         ASDCP::JP2K::MXFSReader reader;
 321         if (ASDCP_FAILURE (reader.OpenRead (path().string().c_str()))) {
 322                 throw FileError ("could not open MXF file for reading", path().string());
 323         }
 324
 325         ASDCP::JP2K::PictureDescriptor desc;
 326         if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
 327                 throw DCPReadError ("could not read video MXF information");
 328         }
 329
 330         _width = desc.StoredWidth;
 331         _height = desc.StoredHeight;
 332 }
 333
 334 shared_ptr<const StereoPictureFrame>
 335 StereoPictureAsset::get_frame (int n) const
 336 {
 337         return shared_ptr<const StereoPictureFrame> (new StereoPictureFrame (path().string(), n + _entry_point));
 338 }