tools/dcpdiff.cc

   1 #include <iostream>
   2 #include <boost/filesystem.hpp>
   3 #include <getopt.h>
   4 #include "dcp.h"
   5 #include "exceptions.h"
   6
   7 using namespace std;
   8 using namespace boost;
   9 using namespace dcp;
  10
  11 static bool verbose = false;
  12
  13 static void
  14 help (string n)
  15 {
  16         cerr << "Syntax: " << n << " [OPTION] <DCP> <DCP>\n"
  17              << "  -V, --version        show libdcp version\n"
  18              << "  -h, --help           show this help\n"
  19              << "  -v, --verbose        be verbose\n"
  20              << "  -n, --names          allow differing MXF names\n"
  21              << "  -m, --mean-pixel     maximum allowed mean pixel error (default 5)\n"
  22              << "  -s, --std-dev-pixel  maximum allowed standard deviation of pixel error (default 5)\n"
  23              << "  -k, --keep-going     carry on in the event of errors, if possible\n"
  24              << "\n"
  25              << "The <DCP>s are the DCP directories to compare.\n"
  26              << "Comparison is of metadata and content, ignoring timestamps\n"
  27              << "and differing UUIDs.\n";
  28 }
  29
  30 void
  31 note (NoteType t, string n)
  32 {
  33         if (t == ERROR || verbose) {
  34                 cout << " " << n << "\n";
  35         }
  36 }
  37
  38 int
  39 main (int argc, char* argv[])
  40 {
  41         EqualityOptions options;
  42         options.max_mean_pixel_error = 5;
  43         options.max_std_dev_pixel_error = 5;
  44         bool keep_going = false;
  45
  46         int option_index = 0;
  47         while (1) {
  48                 static struct option long_options[] = {
  49                         { "version", no_argument, 0, 'V'},
  50                         { "help", no_argument, 0, 'h'},
  51                         { "verbose", no_argument, 0, 'v'},
  52                         { "names", no_argument, 0, 'n'},
  53                         { "mean-pixel", required_argument, 0, 'm'},
  54                         { "std-dev-pixel", required_argument, 0, 's'},
  55                         { "keep-going", no_argument, 0, 'k'},
  56                         { 0, 0, 0, 0 }
  57                 };
  58
  59                 int c = getopt_long (argc, argv, "Vhvnm:s:k", long_options, &option_index);
  60
  61                 if (c == -1) {
  62                         break;
  63                 }
  64
  65                 switch (c) {
  66                 case 'V':
  67                         cout << "dcpdiff version " << LIBDCP_VERSION << "\n";
  68                         exit (EXIT_SUCCESS);
  69                 case 'h':
  70                         help (argv[0]);
  71                         exit (EXIT_SUCCESS);
  72                 case 'v':
  73                         verbose = true;
  74                         break;
  75                 case 'n':
  76                         options.mxf_names_can_differ = true;
  77                         break;
  78                 case 'm':
  79                         options.max_mean_pixel_error = atof (optarg);
  80                         break;
  81                 case 's':
  82                         options.max_std_dev_pixel_error = atof (optarg);
  83                         break;
  84                 case 'k':
  85                         keep_going = true;
  86                         break;
  87                 }
  88         }
  89
  90         if (argc <= optind || argc > (optind + 2)) {
  91                 help (argv[0]);
  92                 exit (EXIT_FAILURE);
  93         }
  94
  95         if (!filesystem::exists (argv[optind])) {
  96                 cerr << argv[0] << ": DCP " << argv[optind] << " not found.\n";
  97                 exit (EXIT_FAILURE);
  98         }
  99
 100         if (!filesystem::exists (argv[optind + 1])) {
 101                 cerr << argv[0] << ": DCP " << argv[optind + 1] << " not found.\n";
 102                 exit (EXIT_FAILURE);
 103         }
 104
 105         DCP* a = 0;
 106         try {
 107                 a = new DCP (argv[optind]);
 108                 list<shared_ptr<DCPReadError> > errors;
 109                 a->read (keep_going, &errors);
 110                 for (list<shared_ptr<DCPReadError> >::const_iterator i = errors.begin(); i != errors.end(); ++i) {
 111                         cerr << (*i)->what() << "\n";
 112                 }
 113         } catch (FileError& e) {
 114                 cerr << "Could not read DCP " << argv[optind] << "; " << e.what() << " " << e.filename() << "\n";
 115                 exit (EXIT_FAILURE);
 116         }
 117
 118         DCP* b = 0;
 119         try {
 120                 b = new DCP (argv[optind + 1]);
 121                 list<shared_ptr<DCPReadError> > errors;
 122                 b->read (keep_going, &errors);
 123                 for (list<shared_ptr<DCPReadError> >::const_iterator i = errors.begin(); i != errors.end(); ++i) {
 124                         cerr << (*i)->what() << "\n";
 125                 }
 126         } catch (FileError& e) {
 127                 cerr << "Could not read DCP " << argv[optind + 1] << "; " << e.what() << " " << e.filename() << "\n";
 128                 exit (EXIT_FAILURE);
 129         }
 130
 131         /* I think this is just below the LSB at 16-bits (ie the 8th most significant bit at 24-bit) */
 132         options.max_audio_sample_error = 255;
 133
 134         bool const equals = a->equals (*b, options, boost::bind (note, _1, _2));
 135
 136         if (equals) {
 137                 exit (EXIT_SUCCESS);
 138         }
 139
 140         exit (EXIT_FAILURE);
 141 }