1 #include "funcprotos.h"
4 void quicktime_mdhd_init(quicktime_mdhd_t *mdhd)
8 mdhd->creation_time = quicktime_current_time();
9 mdhd->modification_time = quicktime_current_time();
16 void quicktime_mdhd_init_video(quicktime_t *file,
17 quicktime_mdhd_t *mdhd,
22 mdhd->time_scale = quicktime_get_timescale(frame_rate);
23 //printf("quicktime_mdhd_init_video %d %f\n", mdhd->time_scale, frame_rate);
24 mdhd->duration = 0; /* set this when closing */
27 void quicktime_mdhd_init_audio(quicktime_mdhd_t *mdhd,
30 mdhd->time_scale = sample_rate;
31 mdhd->duration = 0; /* set this when closing */
34 void quicktime_mdhd_delete(quicktime_mdhd_t *mdhd)
38 void quicktime_read_mdhd(quicktime_t *file, quicktime_mdhd_t *mdhd)
40 mdhd->version = quicktime_read_char(file);
41 mdhd->flags = quicktime_read_int24(file);
42 mdhd->creation_time = quicktime_read_int32(file);
43 mdhd->modification_time = quicktime_read_int32(file);
44 mdhd->time_scale = quicktime_read_int32(file);
45 mdhd->duration = quicktime_read_int32(file);
46 mdhd->language = quicktime_read_int16(file);
47 mdhd->quality = quicktime_read_int16(file);
50 void quicktime_mdhd_dump(quicktime_mdhd_t *mdhd)
52 printf(" media header\n");
53 printf(" version %d\n", mdhd->version);
54 printf(" flags %ld\n", mdhd->flags);
55 printf(" creation_time %lu\n", mdhd->creation_time);
56 printf(" modification_time %lu\n", mdhd->modification_time);
57 printf(" time_scale %ld\n", mdhd->time_scale);
58 printf(" duration %ld\n", mdhd->duration);
59 printf(" language %d\n", mdhd->language);
60 printf(" quality %d\n", mdhd->quality);
63 void quicktime_write_mdhd(quicktime_t *file, quicktime_mdhd_t *mdhd)
65 quicktime_atom_t atom;
66 quicktime_atom_write_header(file, &atom, "mdhd");
68 quicktime_write_char(file, mdhd->version);
69 quicktime_write_int24(file, mdhd->flags);
70 quicktime_write_int32(file, mdhd->creation_time);
71 quicktime_write_int32(file, mdhd->modification_time);
72 quicktime_write_int32(file, mdhd->time_scale);
73 quicktime_write_int32(file, mdhd->duration);
74 quicktime_write_int16(file, mdhd->language);
75 quicktime_write_int16(file, mdhd->quality);
77 quicktime_atom_write_footer(file, &atom);