tools/dcpinfo.cc

   1 /*
   2     Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of libdcp.
   5
   6     libdcp is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     libdcp is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with libdcp.  If not, see <http://www.gnu.org/licenses/>.
  18
  19     In addition, as a special exception, the copyright holders give
  20     permission to link the code of portions of this program with the
  21     OpenSSL library under certain conditions as described in each
  22     individual source file, and distribute linked combinations
  23     including the two.
  24
  25     You must obey the GNU General Public License in all respects
  26     for all of the code used other than OpenSSL.  If you modify
  27     file(s) with this exception, you may extend this exception to your
  28     version of the file(s), but you are not obligated to do so.  If you
  29     do not wish to do so, delete this exception statement from your
  30     version.  If you delete this exception statement from all source
  31     files in the program, then also delete it here.
  32 */
  33
  34 #include "dcp.h"
  35 #include "exceptions.h"
  36 #include "reel.h"
  37 #include "sound_asset.h"
  38 #include "picture_asset.h"
  39 #include "subtitle_asset.h"
  40 #include "reel_picture_asset.h"
  41 #include "reel_sound_asset.h"
  42 #include "reel_subtitle_asset.h"
  43 #include "subtitle_string.h"
  44 #include "subtitle_image.h"
  45 #include "interop_subtitle_asset.h"
  46 #include "smpte_subtitle_asset.h"
  47 #include "mono_picture_asset.h"
  48 #include "encrypted_kdm.h"
  49 #include "decrypted_kdm.h"
  50 #include "cpl.h"
  51 #include "common.h"
  52 #include <getopt.h>
  53 #include <boost/filesystem.hpp>
  54 #include <boost/foreach.hpp>
  55 #include <iostream>
  56 #include <cstdlib>
  57 #include <inttypes.h>
  58
  59 using std::string;
  60 using std::cerr;
  61 using std::cout;
  62 using std::list;
  63 using std::pair;
  64 using std::min;
  65 using std::max;
  66 using std::exception;
  67 using boost::shared_ptr;
  68 using boost::dynamic_pointer_cast;
  69 using boost::optional;
  70 using namespace dcp;
  71
  72 static void
  73 help (string n)
  74 {
  75         cerr << "Syntax: " << n << " [options] [<DCP>] [<CPL>]\n"
  76              << "  -s, --subtitles              list all subtitles\n"
  77              << "  -p, --picture                analyse picture\n"
  78              << "  -d, --decompress             decompress picture when analysing (this is slow)\n"
  79              << "  -k, --keep-going             carry on in the event of errors, if possible\n"
  80              << "      --kdm                    KDM to decrypt DCP\n"
  81              << "      --private-key            private key for the certificate that the KDM is targeted at\n"
  82              << "      --ignore-missing-assets  ignore missing asset files\n";
  83 }
  84
  85 static double
  86 mbits_per_second (int size, Fraction frame_rate)
  87 {
  88         return size * 8 * frame_rate.as_float() / 1e6;
  89 }
  90
  91 static void
  92 main_picture (shared_ptr<Reel> reel, bool analyse, bool decompress)
  93 {
  94         if (!reel->main_picture()) {
  95                 return;
  96         }
  97
  98         cout << "      Picture ID:  " << reel->main_picture()->id()
  99              << " entry " << reel->main_picture()->entry_point()
 100              << " duration " << reel->main_picture()->duration()
 101              << " intrinsic " << reel->main_picture()->intrinsic_duration();
 102
 103         if (reel->main_picture()->asset_ref().resolved()) {
 104                 if (reel->main_picture()->asset()) {
 105                         cout << "\n      Picture:     "
 106                              << reel->main_picture()->asset()->size().width
 107                              << "x"
 108                              << reel->main_picture()->asset()->size().height << "\n";
 109                 }
 110
 111                 shared_ptr<MonoPictureAsset> ma = dynamic_pointer_cast<MonoPictureAsset>(reel->main_picture()->asset());
 112                 if (analyse && ma) {
 113                         shared_ptr<MonoPictureAssetReader> reader = ma->start_read ();
 114                         pair<int, int> j2k_size_range (INT_MAX, 0);
 115                         for (int64_t i = 0; i < ma->intrinsic_duration(); ++i) {
 116                                 shared_ptr<const MonoPictureFrame> frame = reader->get_frame (i);
 117                                 printf("Frame %" PRId64 " J2K size %7d", i, frame->j2k_size());
 118                                 j2k_size_range.first = min(j2k_size_range.first, frame->j2k_size());
 119                                 j2k_size_range.second = max(j2k_size_range.second, frame->j2k_size());
 120
 121                                 if (decompress) {
 122                                         try {
 123                                                 frame->xyz_image();
 124                                                 printf(" decrypted OK");
 125                                         } catch (exception& e) {
 126                                                 printf(" decryption FAILED");
 127                                         }
 128                                 }
 129
 130                                 printf("\n");
 131
 132                         }
 133                         printf(
 134                                 "J2K size ranges from %d (%.1f Mbit/s) to %d (%.1f Mbit/s)\n",
 135                                 j2k_size_range.first, mbits_per_second(j2k_size_range.first, ma->frame_rate()),
 136                                 j2k_size_range.second, mbits_per_second(j2k_size_range.second, ma->frame_rate())
 137                                 );
 138                 }
 139         } else {
 140                 cout << " - not present in this DCP.\n";
 141         }
 142 }
 143
 144 static void
 145 main_sound (shared_ptr<Reel> reel)
 146 {
 147         if (reel->main_sound()) {
 148                 cout << "      Sound ID:    " << reel->main_sound()->id()
 149                      << " entry " << reel->main_picture()->entry_point()
 150                      << " duration " << reel->main_picture()->duration()
 151                      << " intrinsic " << reel->main_picture()->intrinsic_duration();
 152                 if (reel->main_sound()->asset_ref().resolved()) {
 153                         if (reel->main_sound()->asset()) {
 154                                 cout << "\n      Sound:       "
 155                                      << reel->main_sound()->asset()->channels()
 156                                      << " channels at "
 157                                      << reel->main_sound()->asset()->sampling_rate() << "Hz\n";
 158                         }
 159                 } else {
 160                         cout << " - not present in this DCP.\n";
 161                 }
 162         }
 163 }
 164
 165 static void
 166 main_subtitle (shared_ptr<Reel> reel, bool list_subtitles)
 167 {
 168         if (!reel->main_subtitle()) {
 169                 return;
 170         }
 171
 172         cout << "      Subtitle ID: " << reel->main_subtitle()->id();
 173
 174         if (reel->main_subtitle()->asset_ref().resolved()) {
 175                 list<shared_ptr<Subtitle> > subs = reel->main_subtitle()->asset()->subtitles ();
 176                 cout << "\n      Subtitle:    " << subs.size() << " subtitles";
 177                 shared_ptr<InteropSubtitleAsset> iop = dynamic_pointer_cast<InteropSubtitleAsset> (reel->main_subtitle()->asset());
 178                 if (iop) {
 179                         cout << " in " << iop->language() << "\n";
 180                 }
 181                 shared_ptr<SMPTESubtitleAsset> smpte = dynamic_pointer_cast<SMPTESubtitleAsset> (reel->main_subtitle()->asset());
 182                 if (smpte && smpte->language ()) {
 183                         cout << " in " << smpte->language().get() << "\n";
 184                 }
 185                 if (list_subtitles) {
 186                         BOOST_FOREACH (shared_ptr<Subtitle> k, subs) {
 187                                 shared_ptr<SubtitleString> ks = dynamic_pointer_cast<SubtitleString> (k);
 188                                 if (ks) {
 189                                         cout << *ks << "\n";
 190                                 }
 191                                 shared_ptr<SubtitleImage> is = dynamic_pointer_cast<SubtitleImage> (k);
 192                                 if (is) {
 193                                         cout << *is << "\n";
 194                                 }
 195                         }
 196                 }
 197         } else {
 198                 cout << " - not present in this DCP.\n";
 199         }
 200 }
 201
 202 int
 203 main (int argc, char* argv[])
 204 {
 205         bool subtitles = false;
 206         bool keep_going = false;
 207         bool picture = false;
 208         bool decompress = false;
 209         bool ignore_missing_assets = false;
 210         optional<boost::filesystem::path> kdm;
 211         optional<boost::filesystem::path> private_key;
 212
 213         int option_index = 0;
 214         while (true) {
 215                 static struct option long_options[] = {
 216                         { "version", no_argument, 0, 'v' },
 217                         { "help", no_argument, 0, 'h' },
 218                         { "subtitles", no_argument, 0, 's' },
 219                         { "keep-going", no_argument, 0, 'k' },
 220                         { "picture", no_argument, 0, 'p' },
 221                         { "decompress", no_argument, 0, 'd' },
 222                         { "ignore-missing-assets", no_argument, 0, 'A' },
 223                         { "kdm", required_argument, 0, 'B' },
 224                         { "private-key", required_argument, 0, 'C' },
 225                         { 0, 0, 0, 0 }
 226                 };
 227
 228                 int c = getopt_long (argc, argv, "vhskpdAB:C:", long_options, &option_index);
 229
 230                 if (c == -1) {
 231                         break;
 232                 }
 233
 234                 switch (c) {
 235                 case 'v':
 236                         cout << "libdcp version " << LIBDCP_VERSION << "\n";
 237                         exit (EXIT_SUCCESS);
 238                 case 'h':
 239                         help (argv[0]);
 240                         exit (EXIT_SUCCESS);
 241                 case 's':
 242                         subtitles = true;
 243                         break;
 244                 case 'k':
 245                         keep_going = true;
 246                         break;
 247                 case 'p':
 248                         picture = true;
 249                         break;
 250                 case 'd':
 251                         decompress = true;
 252                         break;
 253                 case 'A':
 254                         ignore_missing_assets = true;
 255                         break;
 256                 case 'B':
 257                         kdm = optarg;
 258                         break;
 259                 case 'C':
 260                         private_key = optarg;
 261                         break;
 262                 }
 263         }
 264
 265         if (argc <= optind || argc > (optind + 1)) {
 266                 help (argv[0]);
 267                 exit (EXIT_FAILURE);
 268         }
 269
 270         if (!boost::filesystem::exists (argv[optind])) {
 271                 cerr << argv[0] << ": DCP or CPL " << argv[optind] << " not found.\n";
 272                 exit (EXIT_FAILURE);
 273         }
 274
 275         list<shared_ptr<CPL> > cpls;
 276         if (boost::filesystem::is_directory(argv[optind])) {
 277                 DCP* dcp = 0;
 278                 DCP::ReadErrors errors;
 279                 try {
 280                         dcp = new DCP (argv[optind]);
 281                         dcp->read (keep_going, &errors);
 282                         if (kdm && private_key) {
 283                                 dcp->add(DecryptedKDM(EncryptedKDM(file_to_string(*kdm)), file_to_string(*private_key)));
 284                         }
 285                 } catch (FileError& e) {
 286                         cerr << "Could not read DCP " << argv[optind] << "; " << e.what() << "\n";
 287                         exit (EXIT_FAILURE);
 288                 } catch (DCPReadError& e) {
 289                         cerr << "Could not read DCP " << argv[optind] << "; " << e.what() << "\n";
 290                         exit (EXIT_FAILURE);
 291                 } catch (KDMDecryptionError& e) {
 292                         cerr << e.what() << "\n";
 293                         exit (EXIT_FAILURE);
 294                 }
 295
 296                 cout << "DCP: " << boost::filesystem::path(argv[optind]).string() << "\n";
 297
 298                 dcp::filter_errors (errors, ignore_missing_assets);
 299                 for (DCP::ReadErrors::const_iterator i = errors.begin(); i != errors.end(); ++i) {
 300                         cerr << "Error: " << (*i)->what() << "\n";
 301                 }
 302
 303                 cpls = dcp->cpls ();
 304         } else {
 305                 cpls.push_back (shared_ptr<CPL>(new CPL(boost::filesystem::path(argv[optind]))));
 306                 keep_going = true;
 307                 ignore_missing_assets = true;
 308         }
 309
 310         BOOST_FOREACH (shared_ptr<CPL> i, cpls) {
 311                 cout << "  CPL: " << i->annotation_text() << "\n";
 312
 313                 int R = 1;
 314                 BOOST_FOREACH (shared_ptr<Reel> j, i->reels()) {
 315                         cout << "    Reel " << R << "\n";
 316
 317                         try {
 318                                 main_picture (j, picture, decompress);
 319                         } catch (UnresolvedRefError& e) {
 320                                 if (keep_going) {
 321                                         if (!ignore_missing_assets) {
 322                                                 cerr << e.what() << " (for main picture)\n";
 323                                         }
 324                                 } else {
 325                                         throw;
 326                                 }
 327                         }
 328
 329                         try {
 330                                 main_sound (j);
 331                         } catch (UnresolvedRefError& e) {
 332                                 if (keep_going) {
 333                                         if (!ignore_missing_assets) {
 334                                                 cerr << e.what() << " (for main sound)\n";
 335                                         }
 336                                 } else {
 337                                         throw;
 338                                 }
 339                         }
 340
 341                         try {
 342                                 main_subtitle (j, subtitles);
 343                         } catch (UnresolvedRefError& e) {
 344                                 if (keep_going) {
 345                                         if (!ignore_missing_assets) {
 346                                                 cerr << e.what() << " (for main subtitle)\n";
 347                                         }
 348                                 } else {
 349                                         throw;
 350                                 }
 351                         }
 352
 353                         ++R;
 354                 }
 355         }
 356
 357         return 0;
 358 }