quicktime/tkhd.c

   1 #include "funcprotos.h"
   2 #include "quicktime.h"
   3
   4
   5 int quicktime_tkhd_init(quicktime_tkhd_t *tkhd)
   6 {
   7         int i;
   8         tkhd->version = 0;
   9         tkhd->flags = 15;
  10         tkhd->creation_time = quicktime_current_time();
  11         tkhd->modification_time = quicktime_current_time();
  12         tkhd->track_id;
  13         tkhd->reserved1 = 0;
  14         tkhd->duration = 0;      /* need to set this when closing */
  15         for(i = 0; i < 8; i++) tkhd->reserved2[i] = 0;
  16         tkhd->layer = 0;
  17         tkhd->alternate_group = 0;
  18         tkhd->volume = 0.996094;
  19         tkhd->reserved3 = 0;
  20         quicktime_matrix_init(&(tkhd->matrix));
  21         tkhd->track_width = 0;
  22         tkhd->track_height = 0;
  23         return 0;
  24 }
  25
  26 int quicktime_tkhd_delete(quicktime_tkhd_t *tkhd)
  27 {
  28         return 0;
  29 }
  30
  31 void quicktime_tkhd_dump(quicktime_tkhd_t *tkhd)
  32 {
  33         printf("  track header\n");
  34         printf("   version %d\n", tkhd->version);
  35         printf("   flags %ld\n", tkhd->flags);
  36         printf("   creation_time %u\n", tkhd->creation_time);
  37         printf("   modification_time %u\n", tkhd->modification_time);
  38         printf("   track_id %d\n", tkhd->track_id);
  39         printf("   reserved1 %ld\n", tkhd->reserved1);
  40         printf("   duration %ld\n", tkhd->duration);
  41         quicktime_print_chars("   reserved2 ", tkhd->reserved2, 8);
  42         printf("   layer %d\n", tkhd->layer);
  43         printf("   alternate_group %d\n", tkhd->alternate_group);
  44         printf("   volume %f\n", tkhd->volume);
  45         printf("   reserved3 %d\n", tkhd->reserved3);
  46         quicktime_matrix_dump(&(tkhd->matrix));
  47         printf("   track_width %f\n", tkhd->track_width);
  48         printf("   track_height %f\n", tkhd->track_height);
  49 }
  50
  51 void quicktime_read_tkhd(quicktime_t *file, quicktime_tkhd_t *tkhd)
  52 {
  53 //printf("quicktime_read_tkhd 1 %llx\n", quicktime_position(file));
  54         tkhd->version = quicktime_read_char(file);
  55         tkhd->flags = quicktime_read_int24(file);
  56         tkhd->creation_time = quicktime_read_int32(file);
  57         tkhd->modification_time = quicktime_read_int32(file);
  58         tkhd->track_id = quicktime_read_int32(file);
  59         tkhd->reserved1 = quicktime_read_int32(file);
  60         tkhd->duration = quicktime_read_int32(file);
  61         quicktime_read_data(file, tkhd->reserved2, 8);
  62         tkhd->layer = quicktime_read_int16(file);
  63         tkhd->alternate_group = quicktime_read_int16(file);
  64 //printf("quicktime_read_tkhd 1 %llx\n", quicktime_position(file));
  65         tkhd->volume = quicktime_read_fixed16(file);
  66 //printf("quicktime_read_tkhd 2\n");
  67         tkhd->reserved3 = quicktime_read_int16(file);
  68         quicktime_read_matrix(file, &(tkhd->matrix));
  69         tkhd->track_width = quicktime_read_fixed32(file);
  70         tkhd->track_height = quicktime_read_fixed32(file);
  71 }
  72
  73 void quicktime_write_tkhd(quicktime_t *file, quicktime_tkhd_t *tkhd)
  74 {
  75         quicktime_atom_t atom;
  76         quicktime_atom_write_header(file, &atom, "tkhd");
  77         quicktime_write_char(file, tkhd->version);
  78         quicktime_write_int24(file, tkhd->flags);
  79         quicktime_write_int32(file, tkhd->creation_time);
  80         quicktime_write_int32(file, tkhd->modification_time);
  81         quicktime_write_int32(file, tkhd->track_id);
  82         quicktime_write_int32(file, tkhd->reserved1);
  83         quicktime_write_int32(file, tkhd->duration);
  84         quicktime_write_data(file, tkhd->reserved2, 8);
  85         quicktime_write_int16(file, tkhd->layer);
  86         quicktime_write_int16(file, tkhd->alternate_group);
  87         quicktime_write_fixed16(file, tkhd->volume);
  88         quicktime_write_int16(file, tkhd->reserved3);
  89         quicktime_write_matrix(file, &(tkhd->matrix));
  90         quicktime_write_fixed32(file, tkhd->track_width);
  91         quicktime_write_fixed32(file, tkhd->track_height);
  92         quicktime_atom_write_footer(file, &atom);
  93 }
  94
  95
  96 void quicktime_tkhd_init_video(quicktime_t *file,
  97                                                                 quicktime_tkhd_t *tkhd,
  98                                                                 int frame_w,
  99                                                                 int frame_h)
 100 {
 101         tkhd->track_width = frame_w;
 102         tkhd->track_height = frame_h;
 103         tkhd->volume = 0;
 104 }