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

SDL_HINT_WAVE_RIFF_CHUNK_SIZE

Controls how the size of the RIFF chunk affects the loading of a WAVE file.

Header File

Defined in SDL_hints.h

Syntax

#define SDL_HINT_WAVE_RIFF_CHUNK_SIZE   "SDL_WAVE_RIFF_CHUNK_SIZE"

Remarks

The size of the RIFF chunk (which includes all the sub-chunks of the WAVE file) is not always reliable. In case the size is wrong, it's possible to just ignore it and step through the chunks until a fixed limit is reached.

Note that files that have trailing data unrelated to the WAVE file or corrupt files may slow down the loading process without a reliable boundary. By default, SDL stops after 10000 chunks to prevent wasting time. Use the environment variable SDL_WAVE_CHUNK_LIMIT to adjust this value.

This variable can be set to the following values:

• "force": Always use the RIFF chunk size as a boundary for the chunk search
• "ignorezero": Like "force", but a zero size searches up to 4 GiB (default)
• "ignore": Ignore the RIFF chunk size and always search up to 4 GiB
• "maximum": Search for chunks until the end of file (not recommended)

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CategoryAPI, CategoryAPIMacro, CategoryHints

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