(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_HINT_AUDIO_RESAMPLING_MODE

A variable controlling speed/quality tradeoff of audio resampling.

Header File

Defined in SDL_hints.h

Syntax

#define SDL_HINT_AUDIO_RESAMPLING_MODE   "SDL_AUDIO_RESAMPLING_MODE"

Remarks

If available, SDL can use libsamplerate ( http://www.mega-nerd.com/SRC/ ) to handle audio resampling. There are different resampling modes available that produce different levels of quality, using more CPU.

If this hint isn't specified to a valid setting, or libsamplerate isn't available, SDL will use the default, internal resampling algorithm.

As of SDL 2.26, SDL_ConvertAudio() respects this hint when libsamplerate is available.

This hint is currently only checked at audio subsystem initialization.

This variable can be set to the following values:

• "0" or "default": Use SDL's internal resampling (Default when not set - low quality, fast)
• "1" or "fast": Use fast, slightly higher quality resampling, if available
• "2" or "medium": Use medium quality resampling, if available
• "3" or "best": Use high quality resampling, if available

CategoryAPI, CategoryAPIMacro, CategoryHints