SDL_AudioCVT - Man Page
Audio Conversion Structure
Structure Definition
typedef struct{ int needed; Uint16 src_format; Uint16 dest_format; double rate_incr; Uint8 *buf; int len; int len_cvt; int len_mult; double len_ratio; void (*filters[10])(struct SDL_AudioCVT *cvt, Uint16 format); int filter_index; } SDL_AudioCVT;
Structure Data
- needed
Set to one if the conversion is possible
- src_format
Audio format of the source
- dest_format
Audio format of the destination
- rate_incr
Rate conversion increment
- buf
Audio buffer
- len
Length of the original audio buffer in bytes
- len_cvt
Length of converted audio buffer in bytes (calculated)
- len_mult
buf must be len*len_mult bytes in size(calculated)
- len_ratio
Final audio size is len*len_ratio
- filters[10](..)
Pointers to functions needed for this conversion
- filter_index
Current conversion function
Description
The SDL_AudioCVT is used to convert audio data between different formats. A SDL_AudioCVT structure is created with the SDL_BuildAudioCVT function, while the actual conversion is done by the SDL_ConvertAudio function.
Many of the fields in the SDL_AudioCVT structure should be considered private and their function will not be discussed here.
Uint8 *buf
int len
int len_mult
double len_ratio
See Also
Referenced By
SDL_BuildAudioCVT(3), SDL_ConvertAudio(3).