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