vc1_mc.c File Reference

VC-1 and WMV3 block decoding routines. More...

#include "avcodec.h"
#include "h264chroma.h"
#include "mathops.h"
#include "mpegvideo.h"
#include "vc1.h"

Go to the source code of this file.

Functions
void	ff_vc1_mc_1mv (VC1Context *v, int dir)
	Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo.c.
static int	median4 (int a, int b, int c, int d)
void	ff_vc1_mc_4mv_luma (VC1Context *v, int n, int dir, int avg)
	Do motion compensation for 4-MV macroblock - luminance block.
static av_always_inline int	get_chroma_mv (int *mvx, int *mvy, int *a, int flag, int *tx, int *ty)
void	ff_vc1_mc_4mv_chroma (VC1Context *v, int dir)
	Do motion compensation for 4-MV macroblock - both chroma blocks.
void	ff_vc1_mc_4mv_chroma4 (VC1Context *v, int dir, int dir2, int avg)
	Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V)
void	ff_vc1_interp_mc (VC1Context *v)
	Motion compensation for direct or interpolated blocks in B-frames.

Detailed Description

VC-1 and WMV3 block decoding routines.

Definition in file vc1_mc.c.

Function Documentation

void ff_vc1_mc_1mv	(	VC1Context *	v,
		int	dir
	)

Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo.c.

Definition at line 38 of file vc1_mc.c.

Referenced by vc1_b_mc(), vc1_decode_b_mb_intfr(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), and vc1_decode_p_mb_intfr().

static int median4 ( int  a, int  b, int  c, int  d  )

inlinestatic

Definition at line 243 of file vc1_mc.c.

Referenced by ff_vc1_mc_4mv_luma(), and get_chroma_mv().

void ff_vc1_mc_4mv_luma	(	VC1Context *	v,
		int	n,
		int	dir,
		int	avg
	)

Do motion compensation for 4-MV macroblock - luminance block.

Definition at line 256 of file vc1_mc.c.

Referenced by vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), and vc1_decode_p_mb_intfr().

static av_always_inline int get_chroma_mv ( int *  mvx, int *  mvy, int *  a, int  flag, int *  tx, int *  ty  )

static

Definition at line 447 of file vc1_mc.c.

Referenced by ff_vc1_mc_4mv_chroma().

void ff_vc1_mc_4mv_chroma	(	VC1Context *	v,
		int	dir
	)

Do motion compensation for 4-MV macroblock - both chroma blocks.

Definition at line 502 of file vc1_mc.c.

Referenced by vc1_decode_b_mb_intfi(), vc1_decode_p_mb(), and vc1_decode_p_mb_intfi().

void ff_vc1_mc_4mv_chroma4	(	VC1Context *	v,
		int	dir,
		int	dir2,
		int	avg
	)

Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V)

Definition at line 674 of file vc1_mc.c.

Referenced by vc1_decode_b_mb_intfr(), and vc1_decode_p_mb_intfr().

void ff_vc1_interp_mc

(

VC1Context *

v

)

Motion compensation for direct or interpolated blocks in B-frames.

Definition at line 788 of file vc1_mc.c.

Referenced by vc1_b_mc(), and vc1_decode_b_mb_intfr().