Determine if an SDL_AudioFormat represents signed data.
For example, SDL_AUDIO_ISSIGNED(SDL_AUDIO_U8) returns 0.
an SDL_AudioFormat value.
non-zero if format is signed, zero otherwise.
Threadsafety: It is safe to call this macro from any thread.
See Implementation
Determine if an SDL_AudioFormat represents signed data.
For example, SDL_AUDIO_ISSIGNED(SDL_AUDIO_U8) returns 0.