cinelerra-5.0/quicktime/edts.c

   1 #include "funcprotos.h"
   2 #include "quicktime.h"
   3
   4 void quicktime_edts_init(quicktime_edts_t *edts)
   5 {
   6         quicktime_elst_init(&(edts->elst));
   7 }
   8
   9 void quicktime_edts_delete(quicktime_edts_t *edts)
  10 {
  11         quicktime_elst_delete(&(edts->elst));
  12 }
  13
  14 void quicktime_edts_init_table(quicktime_edts_t *edts)
  15 {
  16         quicktime_elst_init_all(&(edts->elst));
  17 }
  18
  19 void quicktime_read_edts(quicktime_t *file, quicktime_edts_t *edts, quicktime_atom_t *edts_atom)
  20 {
  21         quicktime_atom_t leaf_atom;
  22
  23         do
  24         {
  25                 quicktime_atom_read_header(file, &leaf_atom);
  26 //printf("quicktime_read_edts %llx %llx\n", quicktime_position(file), leaf_atom.end);
  27                 if(quicktime_atom_is(&leaf_atom, "elst"))
  28                 { quicktime_read_elst(file, &(edts->elst)); }
  29                 else
  30                         quicktime_atom_skip(file, &leaf_atom);
  31         }while(quicktime_position(file) < edts_atom->end);
  32 }
  33
  34 void quicktime_edts_dump(quicktime_edts_t *edts)
  35 {
  36         printf("  edit atom (edts)\n");
  37         quicktime_elst_dump(&(edts->elst));
  38 }
  39
  40 void quicktime_write_edts(quicktime_t *file, quicktime_edts_t *edts, long duration)
  41 {
  42         quicktime_atom_t atom;
  43         quicktime_atom_write_header(file, &atom, "edts");
  44         quicktime_write_elst(file, &(edts->elst), duration);
  45         quicktime_atom_write_footer(file, &atom);
  46 }