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Member "quicktime4linux-2.3/mvhd.c" (9 Jan 2007, 3861 Bytes) of package /linux/privat/old/quicktime4linux-2.3-src.tar.gz:


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    1 #include "funcprotos.h"
    2 #include "quicktime.h"
    3 
    4 
    5 
    6 int quicktime_mvhd_init(quicktime_mvhd_t *mvhd)
    7 {
    8     int i;
    9     mvhd->version = 0;
   10     mvhd->flags = 0;
   11     mvhd->creation_time = quicktime_current_time();
   12     mvhd->modification_time = quicktime_current_time();
   13     mvhd->time_scale = 600;
   14     mvhd->duration = 0;
   15     mvhd->preferred_rate = 1.0;
   16     mvhd->preferred_volume = 0.996094;
   17     for(i = 0; i < 10; i++) mvhd->reserved[i] = 0;
   18     quicktime_matrix_init(&(mvhd->matrix));
   19     mvhd->preview_time = 0;
   20     mvhd->preview_duration = 0;
   21     mvhd->poster_time = 0;
   22     mvhd->selection_time = 0;
   23     mvhd->selection_duration = 0;
   24     mvhd->current_time = 0;
   25     mvhd->next_track_id = 1;
   26     return 0;
   27 }
   28 
   29 int quicktime_mvhd_delete(quicktime_mvhd_t *mvhd)
   30 {
   31     return 0;
   32 }
   33 
   34 void quicktime_mvhd_dump(quicktime_mvhd_t *mvhd)
   35 {
   36     printf(" movie header\n");
   37     printf("  version %d\n", mvhd->version);
   38     printf("  flags %ld\n", mvhd->flags);
   39     printf("  creation_time %u\n", mvhd->creation_time);
   40     printf("  modification_time %u\n", mvhd->modification_time);
   41     printf("  time_scale %ld\n", mvhd->time_scale);
   42     printf("  duration %ld\n", mvhd->duration);
   43     printf("  preferred_rate %f\n", mvhd->preferred_rate);
   44     printf("  preferred_volume %f\n", mvhd->preferred_volume);
   45     quicktime_print_chars("  reserved ", mvhd->reserved, 10);
   46     quicktime_matrix_dump(&(mvhd->matrix));
   47     printf("  preview_time %ld\n", mvhd->preview_time);
   48     printf("  preview_duration %ld\n", mvhd->preview_duration);
   49     printf("  poster_time %ld\n", mvhd->poster_time);
   50     printf("  selection_time %ld\n", mvhd->selection_time);
   51     printf("  selection_duration %ld\n", mvhd->selection_duration);
   52     printf("  current_time %ld\n", mvhd->current_time);
   53     printf("  next_track_id %ld\n", mvhd->next_track_id);
   54 }
   55 
   56 void quicktime_read_mvhd(quicktime_t *file, quicktime_mvhd_t *mvhd, quicktime_atom_t *parent_atom)
   57 {
   58     mvhd->version = quicktime_read_char(file);
   59     mvhd->flags = quicktime_read_int24(file);
   60     mvhd->creation_time = quicktime_read_int32(file);
   61     mvhd->modification_time = quicktime_read_int32(file);
   62     mvhd->time_scale = quicktime_read_int32(file);
   63     mvhd->duration = quicktime_read_int32(file);
   64     mvhd->preferred_rate = quicktime_read_fixed32(file);
   65     mvhd->preferred_volume = quicktime_read_fixed16(file);
   66     quicktime_read_data(file, mvhd->reserved, 10);
   67     quicktime_read_matrix(file, &(mvhd->matrix));
   68     mvhd->preview_time = quicktime_read_int32(file);
   69     mvhd->preview_duration = quicktime_read_int32(file);
   70     mvhd->poster_time = quicktime_read_int32(file);
   71     mvhd->selection_time = quicktime_read_int32(file);
   72     mvhd->selection_duration = quicktime_read_int32(file);
   73     mvhd->current_time = quicktime_read_int32(file);
   74     mvhd->next_track_id = quicktime_read_int32(file);
   75 }
   76 
   77 void quicktime_mhvd_init_video(quicktime_t *file, quicktime_mvhd_t *mvhd, double frame_rate)
   78 {
   79     mvhd->time_scale = quicktime_get_timescale(frame_rate);
   80 }
   81 
   82 void quicktime_write_mvhd(quicktime_t *file, quicktime_mvhd_t *mvhd)
   83 {
   84     quicktime_atom_t atom;
   85     quicktime_atom_write_header(file, &atom, "mvhd");
   86 
   87     quicktime_write_char(file, mvhd->version);
   88     quicktime_write_int24(file, mvhd->flags);
   89     quicktime_write_int32(file, mvhd->creation_time);
   90     quicktime_write_int32(file, mvhd->modification_time);
   91     quicktime_write_int32(file, mvhd->time_scale);
   92     quicktime_write_int32(file, mvhd->duration);
   93     quicktime_write_fixed32(file, mvhd->preferred_rate);
   94     quicktime_write_fixed16(file, mvhd->preferred_volume);
   95     quicktime_write_data(file, mvhd->reserved, 10);
   96     quicktime_write_matrix(file, &(mvhd->matrix));
   97     quicktime_write_int32(file, mvhd->preview_time);
   98     quicktime_write_int32(file, mvhd->preview_duration);
   99     quicktime_write_int32(file, mvhd->poster_time);
  100     quicktime_write_int32(file, mvhd->selection_time);
  101     quicktime_write_int32(file, mvhd->selection_duration);
  102     quicktime_write_int32(file, mvhd->current_time);
  103     quicktime_write_int32(file, mvhd->next_track_id);
  104 
  105     quicktime_atom_write_footer(file, &atom);
  106 }