static unsigned compute_avg_bitrate(MOVTrack *track)
{
    uint64_t size = 0;
    int i;
    if (!track->track_duration)
        return 0;
    for (i = 0; i < track->entry; i++)
        size += track->cluster[i].size;
    return size * 8 * track->timescale / track->track_duration;
}
Unknown