hvirtual/quicktime/tkhd.c

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#include "funcprotos.h"
#include "quicktime.h"


int quicktime_tkhd_init(quicktime_tkhd_t *tkhd)
{
        int i;
        tkhd->version = 0;
        tkhd->flags = 15;
        tkhd->creation_time = quicktime_current_time();
        tkhd->modification_time = quicktime_current_time();
        tkhd->track_id;
        tkhd->reserved1 = 0;
        tkhd->duration = 0;      /* need to set this when closing */
        for(i = 0; i < 8; i++) tkhd->reserved2[i] = 0;
        tkhd->layer = 0;
        tkhd->alternate_group = 0;
        tkhd->volume = 0.996094;
        tkhd->reserved3 = 0;
        quicktime_matrix_init(&(tkhd->matrix));
        tkhd->track_width = 0;
        tkhd->track_height = 0;
        return 0;
}

int quicktime_tkhd_delete(quicktime_tkhd_t *tkhd)
{
        return 0;
}

void quicktime_tkhd_dump(quicktime_tkhd_t *tkhd)
{
        printf("  track header\n");
        printf("   version %d\n", tkhd->version);
        printf("   flags %ld\n", tkhd->flags);
        printf("   creation_time %u\n", tkhd->creation_time);
        printf("   modification_time %u\n", tkhd->modification_time);
        printf("   track_id %d\n", tkhd->track_id);
        printf("   reserved1 %ld\n", tkhd->reserved1);
        printf("   duration %ld\n", tkhd->duration);
        quicktime_print_chars("   reserved2 ", tkhd->reserved2, 8);
        printf("   layer %d\n", tkhd->layer);
        printf("   alternate_group %d\n", tkhd->alternate_group);
        printf("   volume %f\n", tkhd->volume);
        printf("   reserved3 %d\n", tkhd->reserved3);
        quicktime_matrix_dump(&(tkhd->matrix));
        printf("   track_width %f\n", tkhd->track_width);
        printf("   track_height %f\n", tkhd->track_height);
}

void quicktime_read_tkhd(quicktime_t *file, quicktime_tkhd_t *tkhd)
{
//printf("quicktime_read_tkhd 1 %llx\n", quicktime_position(file));
        tkhd->version = quicktime_read_char(file);
        tkhd->flags = quicktime_read_int24(file);
        tkhd->creation_time = quicktime_read_int32(file);
        tkhd->modification_time = quicktime_read_int32(file);
        tkhd->track_id = quicktime_read_int32(file);
        tkhd->reserved1 = quicktime_read_int32(file);
        tkhd->duration = quicktime_read_int32(file);
        quicktime_read_data(file, tkhd->reserved2, 8);
        tkhd->layer = quicktime_read_int16(file);
        tkhd->alternate_group = quicktime_read_int16(file);
//printf("quicktime_read_tkhd 1 %llx\n", quicktime_position(file));
        tkhd->volume = quicktime_read_fixed16(file);
//printf("quicktime_read_tkhd 2\n");
        tkhd->reserved3 = quicktime_read_int16(file);
        quicktime_read_matrix(file, &(tkhd->matrix));
        tkhd->track_width = quicktime_read_fixed32(file);
        tkhd->track_height = quicktime_read_fixed32(file);
}

void quicktime_write_tkhd(quicktime_t *file, quicktime_tkhd_t *tkhd)
{
        quicktime_atom_t atom;
        quicktime_atom_write_header(file, &atom, "tkhd");
        quicktime_write_char(file, tkhd->version);
        quicktime_write_int24(file, tkhd->flags);
        quicktime_write_int32(file, tkhd->creation_time);
        quicktime_write_int32(file, tkhd->modification_time);
        quicktime_write_int32(file, tkhd->track_id);
        quicktime_write_int32(file, tkhd->reserved1);
        quicktime_write_int32(file, tkhd->duration);
        quicktime_write_data(file, tkhd->reserved2, 8);
        quicktime_write_int16(file, tkhd->layer);
        quicktime_write_int16(file, tkhd->alternate_group);
        quicktime_write_fixed16(file, tkhd->volume);
        quicktime_write_int16(file, tkhd->reserved3);
        quicktime_write_matrix(file, &(tkhd->matrix));
        quicktime_write_fixed32(file, tkhd->track_width);
        quicktime_write_fixed32(file, tkhd->track_height);
        quicktime_atom_write_footer(file, &atom);
}


void quicktime_tkhd_init_video(quicktime_t *file, 
                                                                quicktime_tkhd_t *tkhd, 
                                                                int frame_w, 
                                                                int frame_h)
{
        tkhd->track_width = frame_w;
        tkhd->track_height = frame_h;
        tkhd->volume = 0;
}

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