Specified the range for float types and added empty check function for format and subformat mask
Specified the range for float types and added empty check function for format and subformat mask

zedongchen/alsa-lib,gittup/alsa-lib,Distrotech/alsa-lib,mikelima/alsa-lib,lgirdwood/alsa-lib,alsa-project/alsa-lib,mikelima/alsa-lib,alsa-project/alsa-lib,mengdonglin/alsa-lib,alsa-project/alsa-lib,mengdonglin/alsa-lib,gittup/alsa-lib,mengdonglin/alsa-lib,lgirdwood/alsa-lib,Distrotech/alsa-lib,takaswie/alsa-lib,takaswie/alsa-lib,zedongchen/alsa-lib,zedongchen/alsa-lib,tiwai/alsa-lib,mikelima/alsa-lib,zedongchen/alsa-lib,tiwai/alsa-lib,gittup/alsa-lib,lgirdwood/alsa-lib,mengdonglin/alsa-lib,gittup/alsa-lib,mengdonglin/alsa-lib,takaswie/alsa-lib,Distrotech/alsa-lib,lgirdwood/alsa-lib,Distrotech/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,mikelima/alsa-lib,Distrotech/alsa-lib,mikelima/alsa-lib,tiwai/alsa-lib,lgirdwood/alsa-lib,takaswie/alsa-lib,zedongchen/alsa-lib,tiwai/alsa-lib