libavcodec/rv40dsp.c File Reference

RV40 decoder motion compensation functions. More...

#include "avcodec.h"
#include "dsputil.h"

Go to the source code of this file.

Defines
#define	RV40_LOWPASS(OPNAME, OP)
#define	RV40_MC(OPNAME, SIZE)
#define	op_avg(a, b)   a = (((a)+cm[b]+1)>>1)
#define	op_put(a, b)   a = cm[b]
#define	RV40_CHROMA_MC(OPNAME, OP)
#define	op_avg(a, b)   a = (((a)+((b)>>6)+1)>>1)
#define	op_put(a, b)   a = ((b)>>6)
Functions
void	ff_rv40dsp_init (DSPContext *c, AVCodecContext *avctx)
Variables
static const int	rv40_bias [4][4]

---

Detailed Description

RV40 decoder motion compensation functions.

Definition in file rv40dsp.c.

---

Define Documentation

#define op_avg	(	a,
		b		)	a = (((a)+((b)>>6)+1)>>1)

Definition at line 281 of file rv40dsp.c.

#define op_avg	(	a,
		b		)	a = (((a)+cm[b]+1)>>1)

Definition at line 281 of file rv40dsp.c.

#define op_put	(	a,
		b		)	a = ((b)>>6)

Definition at line 282 of file rv40dsp.c.

#define op_put	(	a,
		b		)	a = cm[b]

Definition at line 282 of file rv40dsp.c.

#define RV40_CHROMA_MC	(	OPNAME,
		OP		)

Definition at line 206 of file rv40dsp.c.

#define RV40_LOWPASS	(	OPNAME,
		OP		)

Definition at line 30 of file rv40dsp.c.

#define RV40_MC	(	OPNAME,
		SIZE		)

Definition at line 103 of file rv40dsp.c.

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Function Documentation

void ff_rv40dsp_init	(	DSPContext *	c,
		AVCodecContext *	avctx
	)

Definition at line 287 of file rv40dsp.c.

Referenced by dsputil_init().

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Variable Documentation

const int rv40_bias[4][4] [static]

Initial value:

 {
    {  0, 16, 32, 16 },
    { 32, 28, 32, 28 },
    {  0, 32, 16, 32 },
    { 32, 28, 32, 28 }
}

Definition at line 199 of file rv40dsp.c.