sdlBuildAudioCvt function
Initialize an SDL_AudioCVT structure for conversion.
Before an SDL_AudioCVT structure can be used to convert audio data it must be initialized with source and destination information.
This function will zero out every field of the SDL_AudioCVT, so it must be called before the application fills in the final buffer information.
Once this function has returned successfully, and reported that a conversion is necessary, the application fills in the rest of the fields in SDL_AudioCVT, now that it knows how large a buffer it needs to allocate, and then can call SDL_ConvertAudio() to complete the conversion.
\param cvt an SDL_AudioCVT structure filled in with audio conversion information \param src_format the source format of the audio data; for more info see SDL_AudioFormat \param src_channels the number of channels in the source \param src_rate the frequency (sample-frames-per-second) of the source \param dst_format the destination format of the audio data; for more info see SDL_AudioFormat \param dst_channels the number of channels in the destination \param dst_rate the frequency (sample-frames-per-second) of the destination \returns 1 if the audio filter is prepared, 0 if no conversion is needed, or a negative error code on failure; call SDL_GetError() for more information.
\since This function is available since SDL 2.0.0.
\sa SDL_ConvertAudio
extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt, SDL_AudioFormat src_format, Uint8 src_channels, int src_rate, SDL_AudioFormat dst_format, Uint8 dst_channels, int dst_rate)
Implementation
int sdlBuildAudioCvt(Pointer<SdlAudioCvt> cvt, int srcFormat, int srcChannels,
int srcRate, int dstFormat, int dstChannels, int dstRate) {
final sdlBuildAudioCvtLookupFunction = libSdl2.lookupFunction<
Int32 Function(
Pointer<SdlAudioCvt> cvt,
Uint16 srcFormat,
Uint8 srcChannels,
Int32 srcRate,
Uint16 dstFormat,
Uint8 dstChannels,
Int32 dstRate),
int Function(
Pointer<SdlAudioCvt> cvt,
int srcFormat,
int srcChannels,
int srcRate,
int dstFormat,
int dstChannels,
int dstRate)>('SDL_BuildAudioCVT');
return sdlBuildAudioCvtLookupFunction(
cvt, srcFormat, srcChannels, srcRate, dstFormat, dstChannels, dstRate);
}