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mpv/libmpcodecs/vf_yadif.c

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/*
Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <math.h>
#include "config.h"
#include "cpudetect.h"
#include "mp_msg.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
#define MIN(a,b) ((a) > (b) ? (b) : (a))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define ABS(a) ((a) > 0 ? (a) : (-(a)))
#define MIN3(a,b,c) MIN(MIN(a,b),c)
#define MAX3(a,b,c) MAX(MAX(a,b),c)
//===========================================================================//
struct vf_priv_s {
int mode;
int parity;
int buffered_i;
int buffered_tff;
double buffered_pts;
mp_image_t *buffered_mpi;
int stride[3];
uint8_t *ref[4][3];
};
static void (*filter_line)(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int refs, int parity);
static void store_ref(struct vf_priv_s *p, uint8_t *src[3], int src_stride[3], int width, int height){
int i;
memcpy (p->ref[3], p->ref[0], sizeof(uint8_t *)*3);
memmove(p->ref[0], p->ref[1], sizeof(uint8_t *)*3*3);
for(i=0; i<3; i++){
int is_chroma= !!i;
memcpy_pic(p->ref[2][i], src[i], width>>is_chroma, height>>is_chroma, p->stride[i], src_stride[i]);
}
}
#if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
#define LOAD4(mem,dst) \
"movd "mem", "#dst" \n\t"\
"punpcklbw %%mm7, "#dst" \n\t"
#define PABS(tmp,dst) \
"pxor "#tmp", "#tmp" \n\t"\
"psubw "#dst", "#tmp" \n\t"\
"pmaxsw "#tmp", "#dst" \n\t"
#define CHECK(pj,mj) \
"movq "#pj"(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1+j] */\
"movq "#mj"(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1-j] */\
"movq %%mm2, %%mm4 \n\t"\
"movq %%mm2, %%mm5 \n\t"\
"pxor %%mm3, %%mm4 \n\t"\
"pavgb %%mm3, %%mm5 \n\t"\
"pand %[pb1], %%mm4 \n\t"\
"psubusb %%mm4, %%mm5 \n\t"\
"psrlq $8, %%mm5 \n\t"\
"punpcklbw %%mm7, %%mm5 \n\t" /* (cur[x-refs+j] + cur[x+refs-j])>>1 */\
"movq %%mm2, %%mm4 \n\t"\
"psubusb %%mm3, %%mm2 \n\t"\
"psubusb %%mm4, %%mm3 \n\t"\
"pmaxub %%mm3, %%mm2 \n\t"\
"movq %%mm2, %%mm3 \n\t"\
"movq %%mm2, %%mm4 \n\t" /* ABS(cur[x-refs-1+j] - cur[x+refs-1-j]) */\
"psrlq $8, %%mm3 \n\t" /* ABS(cur[x-refs +j] - cur[x+refs -j]) */\
"psrlq $16, %%mm4 \n\t" /* ABS(cur[x-refs+1+j] - cur[x+refs+1-j]) */\
"punpcklbw %%mm7, %%mm2 \n\t"\
"punpcklbw %%mm7, %%mm3 \n\t"\
"punpcklbw %%mm7, %%mm4 \n\t"\
"paddw %%mm3, %%mm2 \n\t"\
"paddw %%mm4, %%mm2 \n\t" /* score */
#define CHECK1 \
"movq %%mm0, %%mm3 \n\t"\
"pcmpgtw %%mm2, %%mm3 \n\t" /* if(score < spatial_score) */\
"pminsw %%mm2, %%mm0 \n\t" /* spatial_score= score; */\
"movq %%mm3, %%mm6 \n\t"\
"pand %%mm3, %%mm5 \n\t"\
"pandn %%mm1, %%mm3 \n\t"\
"por %%mm5, %%mm3 \n\t"\
"movq %%mm3, %%mm1 \n\t" /* spatial_pred= (cur[x-refs+j] + cur[x+refs-j])>>1; */
#define CHECK2 /* pretend not to have checked dir=2 if dir=1 was bad.\
hurts both quality and speed, but matches the C version. */\
"paddw %[pw1], %%mm6 \n\t"\
"psllw $14, %%mm6 \n\t"\
"paddsw %%mm6, %%mm2 \n\t"\
"movq %%mm0, %%mm3 \n\t"\
"pcmpgtw %%mm2, %%mm3 \n\t"\
"pminsw %%mm2, %%mm0 \n\t"\
"pand %%mm3, %%mm5 \n\t"\
"pandn %%mm1, %%mm3 \n\t"\
"por %%mm5, %%mm3 \n\t"\
"movq %%mm3, %%mm1 \n\t"
static void filter_line_mmx2(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int refs, int parity){
static const uint64_t pw_1 = 0x0001000100010001ULL;
static const uint64_t pb_1 = 0x0101010101010101ULL;
const int mode = p->mode;
uint64_t tmp0, tmp1, tmp2, tmp3;
int x;
#define FILTER\
for(x=0; x<w; x+=4){\
asm volatile(\
"pxor %%mm7, %%mm7 \n\t"\
LOAD4("(%[cur],%[mrefs])", %%mm0) /* c = cur[x-refs] */\
LOAD4("(%[cur],%[prefs])", %%mm1) /* e = cur[x+refs] */\
LOAD4("(%["prev2"])", %%mm2) /* prev2[x] */\
LOAD4("(%["next2"])", %%mm3) /* next2[x] */\
"movq %%mm3, %%mm4 \n\t"\
"paddw %%mm2, %%mm3 \n\t"\
"psraw $1, %%mm3 \n\t" /* d = (prev2[x] + next2[x])>>1 */\
"movq %%mm0, %[tmp0] \n\t" /* c */\
"movq %%mm3, %[tmp1] \n\t" /* d */\
"movq %%mm1, %[tmp2] \n\t" /* e */\
"psubw %%mm4, %%mm2 \n\t"\
PABS( %%mm4, %%mm2) /* temporal_diff0 */\
LOAD4("(%[prev],%[mrefs])", %%mm3) /* prev[x-refs] */\
LOAD4("(%[prev],%[prefs])", %%mm4) /* prev[x+refs] */\
"psubw %%mm0, %%mm3 \n\t"\
"psubw %%mm1, %%mm4 \n\t"\
PABS( %%mm5, %%mm3)\
PABS( %%mm5, %%mm4)\
"paddw %%mm4, %%mm3 \n\t" /* temporal_diff1 */\
"psrlw $1, %%mm2 \n\t"\
"psrlw $1, %%mm3 \n\t"\
"pmaxsw %%mm3, %%mm2 \n\t"\
LOAD4("(%[next],%[mrefs])", %%mm3) /* next[x-refs] */\
LOAD4("(%[next],%[prefs])", %%mm4) /* next[x+refs] */\
"psubw %%mm0, %%mm3 \n\t"\
"psubw %%mm1, %%mm4 \n\t"\
PABS( %%mm5, %%mm3)\
PABS( %%mm5, %%mm4)\
"paddw %%mm4, %%mm3 \n\t" /* temporal_diff2 */\
"psrlw $1, %%mm3 \n\t"\
"pmaxsw %%mm3, %%mm2 \n\t"\
"movq %%mm2, %[tmp3] \n\t" /* diff */\
\
"paddw %%mm0, %%mm1 \n\t"\
"paddw %%mm0, %%mm0 \n\t"\
"psubw %%mm1, %%mm0 \n\t"\
"psrlw $1, %%mm1 \n\t" /* spatial_pred */\
PABS( %%mm2, %%mm0) /* ABS(c-e) */\
\
"movq -1(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1] */\
"movq -1(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1] */\
"movq %%mm2, %%mm4 \n\t"\
"psubusb %%mm3, %%mm2 \n\t"\
"psubusb %%mm4, %%mm3 \n\t"\
"pmaxub %%mm3, %%mm2 \n\t"\
"pshufw $9,%%mm2, %%mm3 \n\t"\
"punpcklbw %%mm7, %%mm2 \n\t" /* ABS(cur[x-refs-1] - cur[x+refs-1]) */\
"punpcklbw %%mm7, %%mm3 \n\t" /* ABS(cur[x-refs+1] - cur[x+refs+1]) */\
"paddw %%mm2, %%mm0 \n\t"\
"paddw %%mm3, %%mm0 \n\t"\
"psubw %[pw1], %%mm0 \n\t" /* spatial_score */\
\
CHECK(-2,0)\
CHECK1\
CHECK(-3,1)\
CHECK2\
CHECK(0,-2)\
CHECK1\
CHECK(1,-3)\
CHECK2\
\
/* if(p->mode<2) ... */\
"movq %[tmp3], %%mm6 \n\t" /* diff */\
"cmp $2, %[mode] \n\t"\
"jge 1f \n\t"\
LOAD4("(%["prev2"],%[mrefs],2)", %%mm2) /* prev2[x-2*refs] */\
LOAD4("(%["next2"],%[mrefs],2)", %%mm4) /* next2[x-2*refs] */\
LOAD4("(%["prev2"],%[prefs],2)", %%mm3) /* prev2[x+2*refs] */\
LOAD4("(%["next2"],%[prefs],2)", %%mm5) /* next2[x+2*refs] */\
"paddw %%mm4, %%mm2 \n\t"\
"paddw %%mm5, %%mm3 \n\t"\
"psrlw $1, %%mm2 \n\t" /* b */\
"psrlw $1, %%mm3 \n\t" /* f */\
"movq %[tmp0], %%mm4 \n\t" /* c */\
"movq %[tmp1], %%mm5 \n\t" /* d */\
"movq %[tmp2], %%mm7 \n\t" /* e */\
"psubw %%mm4, %%mm2 \n\t" /* b-c */\
"psubw %%mm7, %%mm3 \n\t" /* f-e */\
"movq %%mm5, %%mm0 \n\t"\
"psubw %%mm4, %%mm5 \n\t" /* d-c */\
"psubw %%mm7, %%mm0 \n\t" /* d-e */\
"movq %%mm2, %%mm4 \n\t"\
"pminsw %%mm3, %%mm2 \n\t"\
"pmaxsw %%mm4, %%mm3 \n\t"\
"pmaxsw %%mm5, %%mm2 \n\t"\
"pminsw %%mm5, %%mm3 \n\t"\
"pmaxsw %%mm0, %%mm2 \n\t" /* max */\
"pminsw %%mm0, %%mm3 \n\t" /* min */\
"pxor %%mm4, %%mm4 \n\t"\
"pmaxsw %%mm3, %%mm6 \n\t"\
"psubw %%mm2, %%mm4 \n\t" /* -max */\
"pmaxsw %%mm4, %%mm6 \n\t" /* diff= MAX3(diff, min, -max); */\
"1: \n\t"\
\
"movq %[tmp1], %%mm2 \n\t" /* d */\
"movq %%mm2, %%mm3 \n\t"\
"psubw %%mm6, %%mm2 \n\t" /* d-diff */\
"paddw %%mm6, %%mm3 \n\t" /* d+diff */\
"pmaxsw %%mm2, %%mm1 \n\t"\
"pminsw %%mm3, %%mm1 \n\t" /* d = clip(spatial_pred, d-diff, d+diff); */\
"packuswb %%mm1, %%mm1 \n\t"\
\
:[tmp0]"=m"(tmp0),\
[tmp1]"=m"(tmp1),\
[tmp2]"=m"(tmp2),\
[tmp3]"=m"(tmp3)\
:[prev] "r"(prev),\
[cur] "r"(cur),\
[next] "r"(next),\
[prefs]"r"((long)refs),\
[mrefs]"r"((long)-refs),\
[pw1] "m"(pw_1),\
[pb1] "m"(pb_1),\
[mode] "g"(mode)\
);\
asm volatile("movd %%mm1, %0" :"=m"(*dst));\
dst += 4;\
prev+= 4;\
cur += 4;\
next+= 4;\
}
if(parity){
#define prev2 "prev"
#define next2 "cur"
FILTER
#undef prev2
#undef next2
}else{
#define prev2 "cur"
#define next2 "next"
FILTER
#undef prev2
#undef next2
}
}
#undef LOAD4
#undef PABS
#undef CHECK
#undef CHECK1
#undef CHECK2
#undef FILTER
#endif /* defined(HAVE_MMX) && defined(NAMED_ASM_ARGS) */
static void filter_line_c(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int refs, int parity){
int x;
uint8_t *prev2= parity ? prev : cur ;
uint8_t *next2= parity ? cur : next;
for(x=0; x<w; x++){
int c= cur[-refs];
int d= (prev2[0] + next2[0])>>1;
int e= cur[+refs];
int temporal_diff0= ABS(prev2[0] - next2[0]);
int temporal_diff1=( ABS(prev[-refs] - c) + ABS(prev[+refs] - e) )>>1;
int temporal_diff2=( ABS(next[-refs] - c) + ABS(next[+refs] - e) )>>1;
int diff= MAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
int spatial_pred= (c+e)>>1;
int spatial_score= ABS(cur[-refs-1] - cur[+refs-1]) + ABS(c-e)
+ ABS(cur[-refs+1] - cur[+refs+1]) - 1;
#define CHECK(j)\
{ int score= ABS(cur[-refs-1+j] - cur[+refs-1-j])\
+ ABS(cur[-refs +j] - cur[+refs -j])\
+ ABS(cur[-refs+1+j] - cur[+refs+1-j]);\
if(score < spatial_score){\
spatial_score= score;\
spatial_pred= (cur[-refs +j] + cur[+refs -j])>>1;\
CHECK(-1) CHECK(-2) }} }}
CHECK( 1) CHECK( 2) }} }}
if(p->mode<2){
int b= (prev2[-2*refs] + next2[-2*refs])>>1;
int f= (prev2[+2*refs] + next2[+2*refs])>>1;
#if 0
int a= cur[-3*refs];
int g= cur[+3*refs];
int max= MAX3(d-e, d-c, MIN3(MAX(b-c,f-e),MAX(b-c,b-a),MAX(f-g,f-e)) );
int min= MIN3(d-e, d-c, MAX3(MIN(b-c,f-e),MIN(b-c,b-a),MIN(f-g,f-e)) );
#else
int max= MAX3(d-e, d-c, MIN(b-c, f-e));
int min= MIN3(d-e, d-c, MAX(b-c, f-e));
#endif
diff= MAX3(diff, min, -max);
}
if(spatial_pred > d + diff)
spatial_pred = d + diff;
else if(spatial_pred < d - diff)
spatial_pred = d - diff;
dst[0] = spatial_pred;
dst++;
cur++;
prev++;
next++;
prev2++;
next2++;
}
}
static void filter(struct vf_priv_s *p, uint8_t *dst[3], int dst_stride[3], int width, int height, int parity, int tff){
int x, y, i;
for(i=0; i<3; i++){
int is_chroma= !!i;
int w= width >>is_chroma;
int h= height>>is_chroma;
int refs= p->stride[i];
for(y=0; y<h; y++){
if((y ^ parity) & 1){
uint8_t *prev= &p->ref[0][i][y*refs];
uint8_t *cur = &p->ref[1][i][y*refs];
uint8_t *next= &p->ref[2][i][y*refs];
uint8_t *dst2= &dst[i][y*dst_stride[i]];
filter_line(p, dst2, prev, cur, next, w, refs, parity ^ tff);
}else{
memcpy(&dst[i][y*dst_stride[i]], &p->ref[1][i][y*refs], w);
}
}
}
#if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
if(gCpuCaps.hasMMX2) asm volatile("emms \n\t" : : : "memory");
#endif
}
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
int i, j;
for(i=0; i<3; i++){
int is_chroma= !!i;
int w= ((width + 31) & (~31))>>is_chroma;
int h= ((height+6+ 31) & (~31))>>is_chroma;
vf->priv->stride[i]= w;
for(j=0; j<3; j++)
vf->priv->ref[j][i]= malloc(w*h*sizeof(uint8_t))+3*w;
}
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static int continue_buffered_image(struct vf_instance_s *vf);
extern int correct_pts;
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
int tff;
if(vf->priv->parity < 0) {
if (mpi->fields & MP_IMGFIELD_ORDERED)
tff = !!(mpi->fields & MP_IMGFIELD_TOP_FIRST);
else
tff = 1;
}
else tff = (vf->priv->parity&1)^1;
store_ref(vf->priv, mpi->planes, mpi->stride, mpi->w, mpi->h);
vf->priv->buffered_mpi = mpi;
vf->priv->buffered_tff = tff;
vf->priv->buffered_i = 0;
vf->priv->buffered_pts = pts;
return continue_buffered_image(vf);
}
static int continue_buffered_image(struct vf_instance_s *vf)
{
mp_image_t *mpi = vf->priv->buffered_mpi;
int tff = vf->priv->buffered_tff;
double pts = vf->priv->buffered_pts;
int i;
int ret=0;
mp_image_t *dmpi;
pts += vf->priv->buffered_i * .02; // XXX not right
for(i = vf->priv->buffered_i; i<=(vf->priv->mode&1); i++){
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP,
MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
mpi->width,mpi->height);
vf_clone_mpi_attributes(dmpi, mpi);
filter(vf->priv, dmpi->planes, dmpi->stride, mpi->w, mpi->h, i ^ tff ^ 1, tff);
if (correct_pts && i < (vf->priv->mode & 1))
vf_queue_frame(vf, continue_buffered_image);
ret |= vf_next_put_image(vf, dmpi, pts /*FIXME*/);
if (correct_pts)
break;
if(i<(vf->priv->mode&1))
vf_next_control(vf, VFCTRL_FLIP_PAGE, NULL);
}
vf->priv->buffered_i = 1;
return ret;
}
static void uninit(struct vf_instance_s* vf){
int i;
if(!vf->priv) return;
for(i=0; i<3*3; i++){
uint8_t **p= &vf->priv->ref[i%3][i/3];
if(*p) free(*p - 3*vf->priv->stride[i/3]);
*p= NULL;
}
free(vf->priv);
vf->priv=NULL;
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_Y800:
case IMGFMT_Y8:
return vf_next_query_format(vf,fmt);
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->uninit=uninit;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
vf->priv->mode=0;
vf->priv->parity= -1;
if (args) sscanf(args, "%d:%d", &vf->priv->mode, &vf->priv->parity);
filter_line = filter_line_c;
#if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
if(gCpuCaps.hasMMX2) filter_line = filter_line_mmx2;
#endif
return 1;
}
vf_info_t vf_info_yadif = {
"Yet Another DeInterlacing Filter",
"yadif",
"Michael Niedermayer",
"",
open,
NULL
};
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