MIX_SetPostMixCallback(3)

📦
version 3.2.4 · 2 versions
, in fedora 44

✨ MIX_SetPostMixCallback(3) ✨

okay bestie, so like. this is MIX_SetPostMixCallback(3), a function from the SDL_mixer3 crew, and it's literally the "last look before it leaves the building" hook for your audio. 💖

🌸 NAME 🌸

MIX_SetPostMixCallback — set a callback that fires when all mixing has completed. no cap, that's the whole vibe. ✨

🎀 SYNOPSIS 🎀

#include <SDL3_mixer/SDL_mixer.h>

bool MIX_SetPostMixCallback(MIX_Mixer *mixer, MIX_PostMixCallback cb, void *userdata);

🦋 DESCRIPTION 🦋

so here's the tea 🍓: after all the mixer groups have done their little processing thing, their buffers get mixed together into one single buffer for the final output. and at that exact moment? a callback can fire. 👑

this lets your app peek at the data at the very last moment before mixing completes. and not just peek, bestie — it can change the data in any way it pleases during this callback, and the mixer will just keep going as if that data is the final output. main character energy fr fr. 💅

every mixer has its own unique callback. no sharing, no borrowing, each one gets their own. 🫶

and passing a NULL callback here? totally legal. it just disables this mixer's callback. periodt. ✨

🌈 FUNCTION PARAMETERS 🌈

  • mixer — the mixer you're assigning this callback to. like, the one getting the glow-up. 💖
  • cb — the function to call when the mixer mixes. may be NULL. yes, NULL is allowed, we said what we said. 💀
  • userdata — an opaque pointer provided to the callback for its own personal use. it's giving "here's your little bag of secrets, do what you want" 🙈

⭐ RETURN VALUE ⭐

returns true on success or false on failure; call SDL_GetError() for more information. so if it flops, go ask SDL_GetError() what happened. 😭

💜 AVAILABILITY 💜

this function is available since SDL_mixer 3.0.0. iconic from the start. 👑

🔥 SEE ALSO 🔥

and that's the whole page, bestie!! this lovely little slice of SDL_mixer is brought to you by SDL_mixer, version SDL_mixer 3.2.4. slay, hydrate, and always check SDL_GetError() when things go sideways. 💅🌸✨

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