libavcodec/h264_loopfilter.c File Reference

H.264 / AVC / MPEG4 part10 loop filter. More...

#include "libavutil/intreadwrite.h"
#include "internal.h"
#include "dsputil.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "h264.h"
#include "mathops.h"
#include "rectangle.h"

Go to the source code of this file.

Defines

#define FILTER(hv, dir, edge, intra)

Functions

static av_always_inline void filter_mb_edgev (uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, int a, int b, H264Context *h, int intra)
static av_always_inline void filter_mb_edgecv (uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, int a, int b, H264Context *h, int intra)
static av_always_inline void filter_mb_mbaff_edgev (H264Context *h, uint8_t *pix, int stride, const int16_t bS[7], int bsi, int qp, int a, int b, int intra)
static av_always_inline void filter_mb_mbaff_edgecv (H264Context *h, uint8_t *pix, int stride, const int16_t bS[7], int bsi, int qp, int a, int b, int intra)
static av_always_inline void filter_mb_edgeh (uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, int a, int b, H264Context *h, int intra)
static av_always_inline void filter_mb_edgech (uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, int a, int b, H264Context *h, int intra)
static av_always_inline void h264_filter_mb_fast_internal (H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize, int pixel_shift)
void ff_h264_filter_mb_fast (H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
static int check_mv (H264Context *h, long b_idx, long bn_idx, int mvy_limit)
static av_always_inline void filter_mb_dir (H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize, int mb_xy, int mb_type, int mvy_limit, int first_vertical_edge_done, int a, int b, int chroma, int dir)
void ff_h264_filter_mb (H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)

Variables

static const uint8_t alpha_table [52 *3]
static const uint8_t beta_table [52 *3]
static const uint8_t tc0_table [52 *3][4]

Detailed Description

H.264 / AVC / MPEG4 part10 loop filter.

Author:
Michael Niedermayer <michaelni@gmx.at>

Definition in file h264_loopfilter.c.

Define Documentation

#define FILTER ( hv,
dir,
edge,
intra   ) 

Value:

if(AV_RN64A(bS[dir][edge])) {                                   \
            filter_mb_edge##hv( &img_y[4*edge*(dir?linesize:1<<pixel_shift)], linesize, bS[dir][edge], edge ? qp : qp##dir, a, b, h, intra );\
            if(chroma){\
                if(chroma444){\
                    filter_mb_edge##hv( &img_cb[4*edge*(dir?linesize:1<<pixel_shift)], linesize, bS[dir][edge], edge ? qpc : qpc##dir, a, b, h, intra );\
                    filter_mb_edge##hv( &img_cr[4*edge*(dir?linesize:1<<pixel_shift)], linesize, bS[dir][edge], edge ? qpc : qpc##dir, a, b, h, intra );\
                } else if(!(edge&1)) {\
                    filter_mb_edgec##hv( &img_cb[2*edge*(dir?uvlinesize:1<<pixel_shift)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, a, b, h, intra );\
                    filter_mb_edgec##hv( &img_cr[2*edge*(dir?uvlinesize:1<<pixel_shift)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, a, b, h, intra );\
                }\
            }\
        }

Function Documentation

static int check_mv ( H264Context *  h,
long  b_idx,
long  bn_idx,
int  mvy_limit 
) [static]

Definition at line 435 of file h264_loopfilter.c.

Referenced by filter_mb_dir().

void ff_h264_filter_mb ( H264Context *  h,
int  mb_x,
int  mb_y,
uint8_t *  img_y,
uint8_t *  img_cb,
uint8_t *  img_cr,
unsigned int  linesize,
unsigned int  uvlinesize 
)

Definition at line 706 of file h264_loopfilter.c.

Referenced by ff_h264_filter_mb_fast(), and loop_filter().

void ff_h264_filter_mb_fast ( H264Context *  h,
int  mb_x,
int  mb_y,
uint8_t *  img_y,
uint8_t *  img_cb,
uint8_t *  img_cr,
unsigned int  linesize,
unsigned int  uvlinesize 
)

Definition at line 417 of file h264_loopfilter.c.

Referenced by loop_filter().

static av_always_inline void filter_mb_dir ( H264Context *  h,
int  mb_x,
int  mb_y,
uint8_t *  img_y,
uint8_t *  img_cb,
uint8_t *  img_cr,
unsigned int  linesize,
unsigned int  uvlinesize,
int  mb_xy,
int  mb_type,
int  mvy_limit,
int  first_vertical_edge_done,
int  a,
int  b,
int  chroma,
int  dir 
) [static]

Definition at line 464 of file h264_loopfilter.c.

Referenced by ff_h264_filter_mb().

static av_always_inline void filter_mb_edgech ( uint8_t *  pix,
int  stride,
const int16_t  bS[4],
unsigned int  qp,
int  a,
int  b,
H264Context *  h,
int  intra 
) [static]

Definition at line 213 of file h264_loopfilter.c.

Referenced by filter_mb_dir(), and h264_filter_mb_fast_internal().

static av_always_inline void filter_mb_edgecv ( uint8_t *  pix,
int  stride,
const int16_t  bS[4],
unsigned int  qp,
int  a,
int  b,
H264Context *  h,
int  intra 
) [static]

Definition at line 123 of file h264_loopfilter.c.

Referenced by filter_mb_dir(), and h264_filter_mb_fast_internal().

static av_always_inline void filter_mb_edgeh ( uint8_t *  pix,
int  stride,
const int16_t  bS[4],
unsigned int  qp,
int  a,
int  b,
H264Context *  h,
int  intra 
) [static]

Definition at line 191 of file h264_loopfilter.c.

Referenced by filter_mb_dir(), and h264_filter_mb_fast_internal().

static av_always_inline void filter_mb_edgev ( uint8_t *  pix,
int  stride,
const int16_t  bS[4],
unsigned int  qp,
int  a,
int  b,
H264Context *  h,
int  intra 
) [static]

Definition at line 101 of file h264_loopfilter.c.

Referenced by filter_mb_dir(), and h264_filter_mb_fast_internal().

static av_always_inline void filter_mb_mbaff_edgecv ( H264Context *  h,
uint8_t *  pix,
int  stride,
const int16_t  bS[7],
int  bsi,
int  qp,
int  a,
int  b,
int  intra 
) [static]

Definition at line 168 of file h264_loopfilter.c.

Referenced by ff_h264_filter_mb().

static av_always_inline void filter_mb_mbaff_edgev ( H264Context *  h,
uint8_t *  pix,
int  stride,
const int16_t  bS[7],
int  bsi,
int  qp,
int  a,
int  b,
int  intra 
) [static]

Definition at line 145 of file h264_loopfilter.c.

Referenced by ff_h264_filter_mb().

static av_always_inline void h264_filter_mb_fast_internal ( H264Context *  h,
int  mb_x,
int  mb_y,
uint8_t *  img_y,
uint8_t *  img_cb,
uint8_t *  img_cr,
unsigned int  linesize,
unsigned int  uvlinesize,
int  pixel_shift 
) [static]

Definition at line 235 of file h264_loopfilter.c.

Referenced by ff_h264_filter_mb_fast().

Variable Documentation

const uint8_t alpha_table[52 *3] [static]

Initial value:

 {
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  4,  4,  5,  6,
     7,  8,  9, 10, 12, 13, 15, 17, 20, 22,
    25, 28, 32, 36, 40, 45, 50, 56, 63, 71,
    80, 90,101,113,127,144,162,182,203,226,
   255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,
}

Definition at line 38 of file h264_loopfilter.c.

Referenced by filter_mb_edgech(), filter_mb_edgecv(), filter_mb_edgeh(), filter_mb_edgev(), filter_mb_mbaff_edgecv(), and filter_mb_mbaff_edgev().

const uint8_t beta_table[52 *3] [static]

Initial value:

 {
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  2,  2,  2,  3,
     3,  3,  3,  4,  4,  4,  6,  6,  7,  7,
     8,  8,  9,  9, 10, 10, 11, 11, 12, 12,
    13, 13, 14, 14, 15, 15, 16, 16, 17, 17,
    18, 18,
    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
}

Definition at line 54 of file h264_loopfilter.c.

Referenced by filter_mb_edgech(), filter_mb_edgecv(), filter_mb_edgeh(), filter_mb_edgev(), filter_mb_mbaff_edgecv(), and filter_mb_mbaff_edgev().

const uint8_t tc0_table[52 *3][4] [static]

Initial value:

 {
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 1 },
    {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 1, 1 }, {-1, 0, 1, 1 }, {-1, 1, 1, 1 },
    {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 },
    {-1, 1, 1, 2 }, {-1, 1, 2, 3 }, {-1, 1, 2, 3 }, {-1, 2, 2, 3 }, {-1, 2, 2, 4 }, {-1, 2, 3, 4 },
    {-1, 2, 3, 4 }, {-1, 3, 3, 5 }, {-1, 3, 4, 6 }, {-1, 3, 4, 6 }, {-1, 4, 5, 7 }, {-1, 4, 5, 8 },
    {-1, 4, 6, 9 }, {-1, 5, 7,10 }, {-1, 6, 8,11 }, {-1, 6, 8,13 }, {-1, 7,10,14 }, {-1, 8,11,16 },
    {-1, 9,12,18 }, {-1,10,13,20 }, {-1,11,15,23 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
}

Definition at line 70 of file h264_loopfilter.c.

Referenced by filter_mb_edgech(), filter_mb_edgecv(), filter_mb_edgeh(), filter_mb_edgev(), filter_mb_mbaff_edgecv(), and filter_mb_mbaff_edgev().

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