libavcodec/rtjpeg.h File Reference

#include <stdint.h>
#include "dsputil.h"

Go to the source code of this file.

Data Structures
struct	RTJpegContext
Defines
#define	RTJPEG_FILE_VERSION   0
#define	RTJPEG_HEADER_SIZE   12
Functions
void	rtjpeg_decode_init (RTJpegContext *c, DSPContext *dsp, int width, int height, const uint32_t *lquant, const uint32_t *cquant)
	initialize an RTJpegContext, may be called multiple times
int	rtjpeg_decode_frame_yuv420 (RTJpegContext *c, AVFrame *f, const uint8_t *buf, int buf_size)
	decode one rtjpeg YUV420 frame

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Define Documentation

#define RTJPEG_FILE_VERSION   0

Definition at line 28 of file rtjpeg.h.

Referenced by decode_frame().

#define RTJPEG_HEADER_SIZE   12

Definition at line 29 of file rtjpeg.h.

Referenced by decode_frame().

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Function Documentation

int rtjpeg_decode_frame_yuv420	(	RTJpegContext *	c,
		AVFrame *	f,
		const uint8_t *	buf,
		int	buf_size
	)

decode one rtjpeg YUV420 frame

Parameters:

	c	context, must be initialized via rtjpeg_decode_init
	f	AVFrame to place decoded frame into. If parts of the frame are not coded they are left unchanged, so consider initializing it
	buf	buffer containing input data
	buf_size	length of input data in bytes

Returns:

number of bytes consumed from the input buffer

Definition at line 99 of file rtjpeg.c.

Referenced by decode_frame().

void rtjpeg_decode_init	(	RTJpegContext *	c,
		DSPContext *	dsp,
		int	width,
		int	height,
		const uint32_t *	lquant,
		const uint32_t *	cquant
	)

initialize an RTJpegContext, may be called multiple times

Parameters:

	c	context to initialize
	dsp	specifies the idct to use for decoding
	width	width of image, will be rounded down to the nearest multiple of 16 for decoding
	height	height of image, will be rounded down to the nearest multiple of 16 for decoding
	lquant	luma quantization table to use
	cquant	chroma quantization table to use

Definition at line 148 of file rtjpeg.c.

Referenced by codec_reinit(), and decode_frame().