SDL  2.0
SDL_AudioCVT Struct Reference

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

#include <SDL_audio.h>

+ Collaboration diagram for SDL_AudioCVT:

Data Fields

int needed
 
SDL_AudioFormat src_format
 
SDL_AudioFormat dst_format
 
double rate_incr
 
Uint8buf
 
int len
 
int len_cvt
 
int len_mult
 
double len_ratio
 
SDL_AudioFilter filters [SDL_AUDIOCVT_MAX_FILTERS+1]
 
int filter_index
 

Detailed 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.

Definition at line 225 of file SDL_audio.h.

Field Documentation

◆ buf

◆ dst_format

SDL_AudioFormat SDL_AudioCVT::dst_format

Target audio format

Definition at line 229 of file SDL_audio.h.

Referenced by SDL_BuildAudioCVT().

◆ filter_index

◆ filters

◆ len

int SDL_AudioCVT::len

Length of original audio buffer

Definition at line 232 of file SDL_audio.h.

Referenced by audio_convertAudio(), main(), SDL_ConvertAudio(), and SDL_ResampleCVT().

◆ len_cvt

◆ len_mult

int SDL_AudioCVT::len_mult

◆ len_ratio

double SDL_AudioCVT::len_ratio

Given len, final size is len*len_ratio

Definition at line 235 of file SDL_audio.h.

Referenced by audio_convertAudio(), SDL_BuildAudioCVT(), SDL_BuildAudioResampleCVT(), SDL_BuildAudioTypeCVTFromFloat(), and SDL_BuildAudioTypeCVTToFloat().

◆ needed

int SDL_AudioCVT::needed

Set to 1 if conversion possible

Definition at line 227 of file SDL_audio.h.

Referenced by SDL_BuildAudioCVT().

◆ rate_incr

double SDL_AudioCVT::rate_incr

Rate conversion increment

Definition at line 230 of file SDL_audio.h.

Referenced by SDL_BuildAudioCVT().

◆ src_format

SDL_AudioFormat SDL_AudioCVT::src_format

Source audio format

Definition at line 228 of file SDL_audio.h.

Referenced by SDL_BuildAudioCVT(), and SDL_ConvertAudio().


The documentation for this struct was generated from the following file: