hvirtual/quicktime/avi_movi.c

Go to the documentation of this file.

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

void quicktime_delete_movi(quicktime_t *file, quicktime_movi_t *movi)
{
        int i;
        for(i = 0; i < file->moov.total_tracks; i++)
        {
                if(movi->ix[i]) quicktime_delete_ix(movi->ix[i]);
        }
}

void quicktime_init_movi(quicktime_t *file, quicktime_riff_t *riff)
{
        int i;
        quicktime_riff_t *first_riff = file->riff[0];
        quicktime_movi_t *movi = &riff->movi;

        quicktime_atom_write_header(file, &movi->atom, "LIST");
        quicktime_write_char32(file, "movi");

// Initialize partial indexes and relative positions for ix entries
        for(i = 0; i < file->moov.total_tracks; i++)
        {
                quicktime_strl_t *strl = first_riff->hdrl.strl[i];
                quicktime_trak_t *trak = file->moov.trak[i];
                quicktime_ix_t *ix = 
                        movi->ix[i] = 
                        quicktime_new_ix(file, trak, strl);
        }
}

void quicktime_read_movi(quicktime_t *file, 
        quicktime_atom_t *parent_atom,
        quicktime_movi_t *movi)
{
        movi->atom.size = parent_atom->size;
// Relative to start of the movi string
        movi->atom.start = parent_atom->start + 8;
        quicktime_atom_skip(file, parent_atom);
}

void quicktime_finalize_movi(quicktime_t *file, quicktime_movi_t *movi)
{
        int i;
// Pad movi to get an even number of bytes
        char temp[2] = { 0, 0 };
        quicktime_write_data(file, 
                temp, 
                (quicktime_position(file) - movi->atom.start) % 2);

        for(i = 0; i < file->moov.total_tracks; i++)
        {
                quicktime_ix_t *ix = movi->ix[i];
// Write partial indexes and update super index
                quicktime_write_ix(file, ix, i);
        }

        quicktime_atom_write_footer(file, &movi->atom);
}

---