SDL_AudioCVT — Audio Conversion Structure
| typedef | struct { | |||
| int |
needed; |
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| Uint16 |
src_format; |
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| Uint16 |
dest_format; |
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| double |
rate_incr; |
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| Uint8 | * |
buf; |
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| int |
len; |
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| int |
len_cvt; |
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| int |
len_mult; |
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| double |
len_ratio; |
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| void | (* |
filters[10])(struct SDL_AudioCVT *cvt, Uint16 format); |
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| int |
filter_index; |
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| } SDL_AudioCVT; | ||||
neededSet to one if the conversion is possible
src_formatAudio format of the source
dest_formatAudio format of the destination
rate_incrRate conversion increment
bufAudio buffer
lenLength of the original audio buffer in bytes
len_cvtLength of converted audio buffer in bytes (calculated)
len_multbuf must be
len*len_mult bytes in
size(calculated)
len_ratioFinal audio size is len*len_ratio
filters[10](..)Pointers to functions needed for this conversion
filter_indexCurrent conversion function
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.
buflenlen_multlen_ratioSDL_BuildAudioCVT(3), SDL_ConvertAudio(3), SDL_AudioSpec(3)
| COPYRIGHT |
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This manual page is taken from the SDL library, licensed under GNU LGPL. |