Constant rsmpeg::ffi::AVAppToDevMessageType_AV_APP_TO_DEV_GET_VOLUME

pub const AVAppToDevMessageType_AV_APP_TO_DEV_GET_VOLUME: u32 = 1196838732; // 0x4756_4f4cu32

Get volume/mute messages.

Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively.

data: NULL.