Fixed bug 3662 - Error message when using the audio conversion setup …

…without an initialized audio subsystem is a bit vague

Simon Hug

This issue actually raises the question if this API change (requirement of initialized audio subsystem) is breaking backwards compatibility. I don't see the documentation saying it is needed in 2.0.5.

src/audio/SDL_audio_c.h

@@ -54,7 +54,10 @@ extern SDL_AudioFormat SDL_NextAudioFormat(void);
 /* Function to calculate the size and silence for a SDL_AudioSpec */
 extern void SDL_CalculateAudioSpec(SDL_AudioSpec * spec);
 
-/* These pointers get set during init to various SIMD implementations. */
+/* Choose the audio filter functions below */
+extern void SDL_ChooseAudioConverters(void);
+
+/* These pointers get set during SDL_ChooseAudioConverters() to various SIMD implementations. */
 extern SDL_AudioFilter SDL_Convert_S8_to_F32;
 extern SDL_AudioFilter SDL_Convert_U8_to_F32;
 extern SDL_AudioFilter SDL_Convert_S16_to_F32;