A WAVE file is considered truncated if any of the chunks are incomplete or the data chunk size is not a
multiple of the block size. By default, SDL decodes until the first incomplete block, as most
applications seem to do.
The variable can be set to the following values:
• "verystrict" - Raise an error if the file is truncated.
• "strict" - Like "verystrict", but the size of the RIFF chunk is ignored.
• "dropframe" - Decode until the first incomplete sample frame.
• "dropblock" - Decode until the first incomplete block. (default)
This hint should be set before calling SDL_LoadWAV() or SDL_LoadWAV_IO()