00001 #include "funcprotos.h"
00002 #include "quicktime.h"
00003
00004
00005
00006 int quicktime_mvhd_init(quicktime_mvhd_t *mvhd)
00007 {
00008 int i;
00009 mvhd->version = 0;
00010 mvhd->flags = 0;
00011 mvhd->creation_time = quicktime_current_time();
00012 mvhd->modification_time = quicktime_current_time();
00013 mvhd->time_scale = 600;
00014 mvhd->duration = 0;
00015 mvhd->preferred_rate = 1.0;
00016 mvhd->preferred_volume = 0.996094;
00017 for(i = 0; i < 10; i++) mvhd->reserved[i] = 0;
00018 quicktime_matrix_init(&(mvhd->matrix));
00019 mvhd->preview_time = 0;
00020 mvhd->preview_duration = 0;
00021 mvhd->poster_time = 0;
00022 mvhd->selection_time = 0;
00023 mvhd->selection_duration = 0;
00024 mvhd->current_time = 0;
00025 mvhd->next_track_id = 1;
00026 return 0;
00027 }
00028
00029 int quicktime_mvhd_delete(quicktime_mvhd_t *mvhd)
00030 {
00031 return 0;
00032 }
00033
00034 void quicktime_mvhd_dump(quicktime_mvhd_t *mvhd)
00035 {
00036 printf(" movie header\n");
00037 printf(" version %d\n", mvhd->version);
00038 printf(" flags %ld\n", mvhd->flags);
00039 printf(" creation_time %u\n", mvhd->creation_time);
00040 printf(" modification_time %u\n", mvhd->modification_time);
00041 printf(" time_scale %ld\n", mvhd->time_scale);
00042 printf(" duration %ld\n", mvhd->duration);
00043 printf(" preferred_rate %f\n", mvhd->preferred_rate);
00044 printf(" preferred_volume %f\n", mvhd->preferred_volume);
00045 quicktime_print_chars(" reserved ", mvhd->reserved, 10);
00046 quicktime_matrix_dump(&(mvhd->matrix));
00047 printf(" preview_time %ld\n", mvhd->preview_time);
00048 printf(" preview_duration %ld\n", mvhd->preview_duration);
00049 printf(" poster_time %ld\n", mvhd->poster_time);
00050 printf(" selection_time %ld\n", mvhd->selection_time);
00051 printf(" selection_duration %ld\n", mvhd->selection_duration);
00052 printf(" current_time %ld\n", mvhd->current_time);
00053 printf(" next_track_id %ld\n", mvhd->next_track_id);
00054 }
00055
00056 void quicktime_read_mvhd(quicktime_t *file, quicktime_mvhd_t *mvhd, quicktime_atom_t *parent_atom)
00057 {
00058 mvhd->version = quicktime_read_char(file);
00059 mvhd->flags = quicktime_read_int24(file);
00060 mvhd->creation_time = quicktime_read_int32(file);
00061 mvhd->modification_time = quicktime_read_int32(file);
00062 mvhd->time_scale = quicktime_read_int32(file);
00063 mvhd->duration = quicktime_read_int32(file);
00064 mvhd->preferred_rate = quicktime_read_fixed32(file);
00065 mvhd->preferred_volume = quicktime_read_fixed16(file);
00066 quicktime_read_data(file, mvhd->reserved, 10);
00067 quicktime_read_matrix(file, &(mvhd->matrix));
00068 mvhd->preview_time = quicktime_read_int32(file);
00069 mvhd->preview_duration = quicktime_read_int32(file);
00070 mvhd->poster_time = quicktime_read_int32(file);
00071 mvhd->selection_time = quicktime_read_int32(file);
00072 mvhd->selection_duration = quicktime_read_int32(file);
00073 mvhd->current_time = quicktime_read_int32(file);
00074 mvhd->next_track_id = quicktime_read_int32(file);
00075 }
00076
00077 void quicktime_mhvd_init_video(quicktime_t *file, quicktime_mvhd_t *mvhd, double frame_rate)
00078 {
00079 mvhd->time_scale = quicktime_get_timescale(frame_rate);
00080 }
00081
00082 void quicktime_write_mvhd(quicktime_t *file, quicktime_mvhd_t *mvhd)
00083 {
00084 quicktime_atom_t atom;
00085 quicktime_atom_write_header(file, &atom, "mvhd");
00086
00087 quicktime_write_char(file, mvhd->version);
00088 quicktime_write_int24(file, mvhd->flags);
00089 quicktime_write_int32(file, mvhd->creation_time);
00090 quicktime_write_int32(file, mvhd->modification_time);
00091 quicktime_write_int32(file, mvhd->time_scale);
00092 quicktime_write_int32(file, mvhd->duration);
00093 quicktime_write_fixed32(file, mvhd->preferred_rate);
00094 quicktime_write_fixed16(file, mvhd->preferred_volume);
00095 quicktime_write_data(file, mvhd->reserved, 10);
00096 quicktime_write_matrix(file, &(mvhd->matrix));
00097 quicktime_write_int32(file, mvhd->preview_time);
00098 quicktime_write_int32(file, mvhd->preview_duration);
00099 quicktime_write_int32(file, mvhd->poster_time);
00100 quicktime_write_int32(file, mvhd->selection_time);
00101 quicktime_write_int32(file, mvhd->selection_duration);
00102 quicktime_write_int32(file, mvhd->current_time);
00103 quicktime_write_int32(file, mvhd->next_track_id);
00104
00105 quicktime_atom_write_footer(file, &atom);
00106 }
