AudioChannelMask

export enum AudioChannelMask {
    CHANNEL_NONE,
    CHANNEL_INVALID,
    CHANNEL_BIT_MAX,

    /* start of individual channel bits *\/
    CHANNEL_FRONT_LEFT,
    CHANNEL_FRONT_RIGHT,
    CHANNEL_FRONT_CENTER,
    CHANNEL_LOW_FREQUENCY,
    CHANNEL_BACK_LEFT,
    CHANNEL_BACK_RIGHT,
    CHANNEL_BACK_CENTER,
    CHANNEL_SIDE_LEFT,
    CHANNEL_SIDE_RIGHT,
    CHANNEL_TOP_CENTER,
    CHANNEL_TOP_FRONT_LEFT,
    CHANNEL_TOP_FRONT_RIGHT,
    CHANNEL_TOP_FRONT_CENTER,
    CHANNEL_TOP_BACK_LEFT,
    CHANNEL_TOP_BACK_RIGHT,
    CHANNEL_TOP_BACK_CENTER,
    CHANNEL_TOP_SIDE_LEFT,
    CHANNEL_TOP_SIDE_RIGHT,

    /**
     * start of channel masks, position of channels are fixed as presented order for each entry.
     * client side should always send in audio with the specified order. if not, routing of channel
     * may become incorrect.
     *\/
    CHANNEL_MONO,
    CHANNEL_STEREO,
    CHANNEL_3POINT1POINT1,
    CHANNEL_QUAD,
    CHANNEL_5POINT1,
    CHANNEL_5POINT1_SIDE,
    CHANNEL_5POINT1POINT2,
    CHANNEL_5POINT1POINT2_SIDE,
    CHANNEL_5POINT1POINT4,
    CHANNEL_5POINT1POINT4_SIDE,
    CHANNEL_7POINT1,
    CHANNEL_7POINT1POINT2,
    CHANNEL_7POINT1POINT4,
    CHANNEL_ALL
};