pspjpeg.h File Reference

#include <psptypes.h>

Include dependency graph for pspjpeg.h:

Go to the source code of this file.

Macros
#define	SCE_JPEG_ERROR_BAD_MARKER_LENGTH   (0x80650004)
#define	SCE_JPEG_ERROR_INVALID_POINTER   (0x80650010)
#define	SCE_JPEG_ERROR_UNSUPPORT_COLORSPACE   (0x80650013)
#define	SCE_JPEG_ERROR_UNSUPPORT_SAMPLING   (0x80650016)
#define	SCE_JPEG_ERROR_UNSUPPORT_IMAGE_SIZE   (0x80650020)
#define	SCE_JPEG_ERROR_UNKNOWN_MARKER   (0x80650035)

Functions
int	sceJpegInitMJpeg (void)
	Inits the MJpeg library.
int	sceJpegFinishMJpeg (void)
	Finishes the MJpeg library.
int	sceJpegCreateMJpeg (int width, int height)
	Creates the decoder context.
int	sceJpegDeleteMJpeg (void)
	Deletes the current decoder context.
int	sceJpegDecodeMJpeg (u8 *jpegbuf, SceSize size, u8 *rgba, u32 unk)
	Decodes a mjpeg frame to RGBA encoding.
int	sceJpegGetOutputInfo (u8 *jpegbuf, SceSize size, int *colourInfo, int unk)
	Reads information from mjpeg frame.
int	sceJpegDecodeMJpegYCbCr (u8 *jpegbuf, SceSize size, u8 *yCbCr, SceSize yCbCrSize, u32 unk)
	Decodes a mjpeg frame to YCbCr encoding.
int	sceJpegCsc (u8 *imageAddr, u8 *yCbCrAddr, int widthHeight, int bufferWidth, int colourInfo)
	Converts a frame from YCbCr to RGBA.

Macro Definition Documentation

SCE_JPEG_ERROR_BAD_MARKER_LENGTH

#define SCE_JPEG_ERROR_BAD_MARKER_LENGTH   (0x80650004)

SCE_JPEG_ERROR_INVALID_POINTER

#define SCE_JPEG_ERROR_INVALID_POINTER   (0x80650010)

SCE_JPEG_ERROR_UNKNOWN_MARKER

#define SCE_JPEG_ERROR_UNKNOWN_MARKER   (0x80650035)

SCE_JPEG_ERROR_UNSUPPORT_COLORSPACE

#define SCE_JPEG_ERROR_UNSUPPORT_COLORSPACE   (0x80650013)

SCE_JPEG_ERROR_UNSUPPORT_IMAGE_SIZE

#define SCE_JPEG_ERROR_UNSUPPORT_IMAGE_SIZE   (0x80650020)

SCE_JPEG_ERROR_UNSUPPORT_SAMPLING

#define SCE_JPEG_ERROR_UNSUPPORT_SAMPLING   (0x80650016)

Function Documentation

sceJpegCreateMJpeg()

int sceJpegCreateMJpeg	(	int	width,
		int	height )

Creates the decoder context.

Parameters

width	- The width of the frame
height	- The height of the frame

Returns

0 on success, < 0 on error

sceJpegCsc()

int sceJpegCsc	(	u8 *	imageAddr,
		u8 *	yCbCrAddr,
		int	widthHeight,
		int	bufferWidth,
		int	colourInfo )

Converts a frame from YCbCr to RGBA.

Parameters

imageAddr	- buffer where the converted data in RGBA format will be stored.
yCbCrAddr	- the buffer with the YCbCr data
widthHeight	- width and height of the frame (width * 65536) + height, as returned by sceJpegDecodeMJpegYCbCr() or sceJpegDecodeMJpeg()
bufferWidth	- number of pixels per row of the buffer
colourInfo	- chroma subsampling mode, as provided by sceJpegGetOutputInfo()

Returns

0 on success, < 0 on error

sceJpegDecodeMJpeg()

int sceJpegDecodeMJpeg	(	u8 *	jpegbuf,
		SceSize	size,
		u8 *	rgba,
		u32	unk )

Decodes a mjpeg frame to RGBA encoding.

Note

Input frame should be encoded as either yuv420p or yuvj420p, returns SCE_JPEG_ERROR_UNSUPPORT_SAMPLING otherwise

Parameters

jpegbuf	- the buffer with the mjpeg frame
size	- size of the buffer pointed by jpegbuf
rgba	- buffer where the decoded data in RGBA format will be stored. It should have a size of (width * height * 4).
unk	- Unknown, pass 0

Returns

(width * 65536) + height on success, < 0 on error

sceJpegDecodeMJpegYCbCr()

int sceJpegDecodeMJpegYCbCr	(	u8 *	jpegbuf,
		SceSize	size,
		u8 *	yCbCr,
		SceSize	yCbCrSize,
		u32	unk )

Decodes a mjpeg frame to YCbCr encoding.

Note

Input frame should be encoded as either yuv420p or yuvj420p, returns SCE_JPEG_ERROR_UNSUPPORT_SAMPLING otherwise

Parameters

jpegbuf	- the buffer with the mjpeg frame
size	- size of the buffer pointed by jpegbuf
yCbCr	- buffer where the decoded data in YCbCr format will be stored
yCbCrSize	- size of the buffer pointed by yCbCr (see sceJpegGetOutputInfo())
unk	- Unknown, pass 0

Returns

(width * 65536) + height on success, < 0 on error

sceJpegDeleteMJpeg()

int sceJpegDeleteMJpeg

(

void

)

Deletes the current decoder context.

Returns

0 on success, < 0 on error

sceJpegFinishMJpeg()

int sceJpegFinishMJpeg

(

void

)

Finishes the MJpeg library.

Returns

0 on success, < 0 on error

sceJpegGetOutputInfo()

int sceJpegGetOutputInfo	(	u8 *	jpegbuf,
		SceSize	size,
		int *	colourInfo,
		int	unk )

Reads information from mjpeg frame.

Parameters

jpegbuf	- the buffer with the mjpeg frame
size	- size of the mjpeg frame
colourInfo	- address where the mjpeg chroma information will be stored
unk	- Unknown, pass 0

Returns

number of bytes needed in the buffer that will be used for YCbCr decoding, <= 0 on error

sceJpegInitMJpeg()

int sceJpegInitMJpeg

(

void

)

Inits the MJpeg library.

Returns

0 on success, < 0 on error