SDL_AudioCVT
Section: SDL API Reference (3)Updated: Tue 11 Sep 2001, 22:58
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NAME
SDL_AudioCVT - Audio Conversion StructureSTRUCTURE 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
SDL_BuildAudioCVT, SDL_ConvertAudio, SDL_AudioSpec
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Time: 04:45:42 GMT, September 16, 2022
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