TOOLS/360m_convert.c

   1 /**
   2  * convert D-Cinema Video (MPEG2 in GXF, SMPTE 360M) to a
   3  * MPEG-ES file that MPlayer can play (use -demuxer mpeges).
   4  * Usage: 360m_convert <infile> <outfile>
   5  */
   6 #include <stdlib.h>
   7 #include <stdio.h>
   8
   9 int main(int argc, char *argv[]) {
  10   FILE *in = fopen(argv[1], "r");
  11   FILE *out = fopen(argv[2], "w");
  12   int discard = 0;
  13   unsigned char buf[4];
  14   if (!in) {
  15     printf("Could not open %s for reading\n", argv[1]);
  16     return EXIT_FAILURE;
  17   }
  18   if (!out) {
  19     printf("Could not open %s for writing\n", argv[2]);
  20     return EXIT_FAILURE;
  21   }
  22   fread(buf, 4, 1, in);
  23   do {
  24     if (buf[0] == 0 && buf[1] == 0 && buf[2] == 1) {
  25       // encountered a header
  26       // skip data between a 0xbf or 0xbc header and the next 0x00 header
  27       if (buf[3] == 0xbc || buf[3] == 0xbf)
  28         discard = 1;
  29       else if (buf[3] == 0)
  30         discard = 0;
  31     }
  32     if (!discard)
  33       fwrite(&buf[0], 1, 1, out);
  34     buf[0] = buf[1];
  35     buf[1] = buf[2];
  36     buf[2] = buf[3];
  37     fread(&buf[3], 1, 1, in);
  38   } while (!feof(in));
  39   return EXIT_SUCCESS;
  40 }
  41