Struct fermium::audio::SDL_AudioCVT

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#[repr(C)]
pub struct SDL_AudioCVT { pub needed: c_int, pub src_format: SDL_AudioFormat, pub dst_format: SDL_AudioFormat, pub rate_incr: f64, pub buf: *mut u8, pub len: c_int, pub len_cvt: c_int, pub len_mult: c_int, pub len_ratio: f64, pub filters: [SDL_AudioFilter; 10], pub filter_index: c_int, }
Expand description

A structure to hold a set of audio conversion filters and buffers.

Note that various parts of the conversion pipeline can take advantage of SIMD operations (like SSE2, for example). SDL_AudioCVT doesn’t require you to pass it aligned data, but can possibly run much faster if you set both its (buf) field to a pointer that is aligned to 16 bytes, and its (len) field to something that’s a multiple of 16, if possible.

Fields§

§needed: c_int

Set to 1 if conversion possible

§src_format: SDL_AudioFormat

Source audio format

§dst_format: SDL_AudioFormat

Target audio format

§rate_incr: f64

Rate conversion increment

§buf: *mut u8

Buffer to hold entire audio data

§len: c_int

Length of original audio buffer

§len_cvt: c_int

Length of converted audio buffer

§len_mult: c_int

buffer must be len*len_mult big

§len_ratio: f64

Given len, final size is len*len_ratio

§filters: [SDL_AudioFilter; 10]

NULL-terminated list of filter functions

§filter_index: c_int

Current audio conversion function

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