enum AudioProps {
    AUD_UNKNOWN       = 0, // For backwards compatibility do not change 0 or 1
    AUD_STEREO        = 1,
    AUD_MONO          = 2,
    AUD_SURROUND      = 3,
    AUD_DOLBY         = 4
};

enum VideoProps {
    VID_UNKNOWN       = 0, // For backwards compatibility do not change 0 or 1
    VID_HDTV          = 1,
    VID_WIDESCREEN    = 2
};

enum SubtitleTypes {
    SUB_UNKNOWN       = 0, // For backwards compatibility do not change 0 or 1
    SUB_HARDHEAR      = 1,
    SUB_NORMAL        = 2,
    SUB_ONSCREEN      = 3
};