# SDL_AUDIO_MASK_BITSIZE Mask of bits in an [SDL_AudioFormat](SDL_AudioFormat) that contains the format bit size. ## Header File Defined in [<SDL3/SDL_audio.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_audio.h) ## Syntax ```c #define SDL_AUDIO_MASK_BITSIZE (0xFFu) ``` ## Remarks Generally one should use [SDL_AUDIO_BITSIZE](SDL_AUDIO_BITSIZE) instead of this macro directly. ## Version This macro is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryAudio](CategoryAudio)