upsamplers.h File Reference

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Data Structures
struct	upsample_t

Typedefs
typedef struct upsample_t	upsample_t
typedef int(*	upsampler_t) (struct upsample_t *)

Functions
upsampler_t	find_upsampler (int freq, int bits, int channels)

Detailed Description

audsrv IOP-side upsamplers

Definition in file upsamplers.h.

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Data Structure Documentation

upsample_t

struct upsample_t

Definition at line 18 of file upsamplers.h.

Data Fields
short *	left
short *	right
const unsigned char *	src

Typedef Documentation

upsampler_t

typedef int(* upsampler_t) (struct upsample_t *)

Definition at line 25 of file upsamplers.h.

Function Documentation

find_upsampler()

upsampler_t find_upsampler	(	int	freq,
		int	bits,
		int	channels
	)

Returns an upsampler from a specified format to SPU2's native

Parameters

freq	frequency used
bits	bits per sample
channels	number of audio channels

Returns

a function to be used for upsampling, null if not found

Will return a function to convert source audio to Playstation's native. Note a very limited selection of upsamplers are available, only the most commonly used.

Definition at line 636 of file upsamplers.c.

References entry_t::bits, entry_t::channels, entry_t::freq, and upsamplers.

Referenced by audsrv_format_ok(), cdda_procedure(), and play_thread().