libavcodec/rtjpeg.h File Reference

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

Go to the source code of this file.

Data Structures
struct	RTJpegContext
Functions
void	ff_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	ff_rtjpeg_decode_frame_yuv420 (RTJpegContext *c, AVFrame *f, const uint8_t *buf, int buf_size)
	decode one rtjpeg YUV420 frame

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Function Documentation

int ff_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 ff_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 107 of file rtjpeg.c.

Referenced by decode_frame().

void ff_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 157 of file rtjpeg.c.

Referenced by codec_reinit(), and decode_frame().