NAME

       SDL_HINT_WAVE_FACT_CHUNK - A variable controlling how the fact chunk affects the loading of a WAVE file.

HEADER FILE

       Defined in SDL3/SDL_hints.h

SYNOPSIS

       #include "SDL3/SDL.h"

       #define SDL_HINT_WAVE_FACT_CHUNK SDL_WAVE_FACT_CHUNK"

DESCRIPTION

       The  fact  chunk stores information about the number of samples of a WAVE file. The Standards Update from
       Microsoft notes that this value can be used to 'determine the length of the data  in  seconds'.  This  is
       especially  useful  for compressed formats (for which this is a mandatory chunk) if they produce multiple
       sample frames per block and truncating the block is not allowed. The fact chunk can exactly  specify  how
       many sample frames there should be in this case.

       Unfortunately, most application seem to ignore the fact chunk and so SDL ignores it by default as well.

       The variable can be set to the following values:

       • "truncate" - Use the number of samples to truncate the wave data if the
         fact chunk is present and valid.

       • "strict" - Like "truncate", but raise an error if the fact chunk is
         invalid, not present for non-PCM formats, or if the data chunk doesn't
         have that many samples.

       • "ignorezero" - Like "truncate", but ignore fact chunk if the number of
         samples is zero.

       • "ignore" - Ignore fact chunk entirely. (default)

       This hint should be set before calling SDL_LoadWAV () or

       SDL_LoadWAV_IO ()

AVAILABILITY

       This hint is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.10                        SDL_HINT_WAVE_FACT_CHUNK(3)