NNS_SndCaptureSetOutputEffectCallback

Syntax

#include <nnsys/snd.h>

typedef void (*NNSSndCaptureCallback)(
    void* bufferL,
    void* bufferR,
    u32 len,
    NNSSndCaptureFormat format,
    void* arg
);

void NNS_SndCaptureSetOutputEffectCallback(
        NNSSndCaptureCallback func,
        void* arg );

Arguments

`func`	Callback function pointer.
`arg`	Parameter that becomes the callback function argument.

Return Values

None.

Description

Registers the output effect preprocess callback.

When output effect processing is being performed by the NNS_SndCaptureStartOutputEffect function, the registered callback function func is called immediately before the output effect processing. To call it immediately after the processing, register the callback function with NNS_SndCaptureSetPostOutputEffectCallback.

The arguments for the func callback function are the pointer to the starting address for the L component bufferL, the pointer to the starting address for the R component bufferR, and the buffer size len. The format format always takes NNS_SND_CAPTURE_FORMAT_PCM16, which indicates 16-bit PCM. The same arguments for NNS_SndCaptureSetOutputEffectCallback are passed to the user argument arg.

Note

Unlike the callback functions of the NNS_SndCaptureStartEffect function, the buffer that is passed can be accessed only from inside the callback function.

Revision History

2004/10/04 Initial version.