libmpcodecs/vf_yadif.c

   1 /*
   2  * Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
   3  *
   4  * This file is part of MPlayer.
   5  *
   6  * MPlayer is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * MPlayer is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <inttypes.h>
  25 #include <math.h>
  26
  27 #include "config.h"
  28 #include "cpudetect.h"
  29
  30 #include "mp_msg.h"
  31
  32 #if HAVE_MALLOC_H
  33 #include <malloc.h>
  34 #endif
  35
  36 #include "img_format.h"
  37 #include "mp_image.h"
  38 #include "vf.h"
  39 #include "libvo/fastmemcpy.h"
  40 #include "libavutil/common.h"
  41
  42 //===========================================================================//
  43
  44 struct vf_priv_s {
  45     int mode;
  46     int parity;
  47     int buffered_i;
  48     int buffered_tff;
  49     double buffered_pts;
  50     mp_image_t *buffered_mpi;
  51     int stride[3];
  52     uint8_t *ref[4][3];
  53     int do_deinterlace;
  54 };
  55
  56 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);
  57
  58 static void store_ref(struct vf_priv_s *p, uint8_t *src[3], int src_stride[3], int width, int height){
  59     int i;
  60
  61     memcpy (p->ref[3], p->ref[0], sizeof(uint8_t *)*3);
  62     memmove(p->ref[0], p->ref[1], sizeof(uint8_t *)*3*3);
  63
  64     for(i=0; i<3; i++){
  65         int is_chroma= !!i;
  66
  67         memcpy_pic(p->ref[2][i], src[i], width>>is_chroma, height>>is_chroma, p->stride[i], src_stride[i]);
  68     }
  69 }
  70
  71 #if HAVE_MMX && defined(NAMED_ASM_ARGS)
  72
  73 #define LOAD4(mem,dst) \
  74             "movd      "mem", "#dst" \n\t"\
  75             "punpcklbw %%mm7, "#dst" \n\t"
  76
  77 #define PABS(tmp,dst) \
  78             "pxor     "#tmp", "#tmp" \n\t"\
  79             "psubw    "#dst", "#tmp" \n\t"\
  80             "pmaxsw   "#tmp", "#dst" \n\t"
  81
  82 #define CHECK(pj,mj) \
  83             "movq "#pj"(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1+j] */\
  84             "movq "#mj"(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1-j] */\
  85             "movq      %%mm2, %%mm4 \n\t"\
  86             "movq      %%mm2, %%mm5 \n\t"\
  87             "pxor      %%mm3, %%mm4 \n\t"\
  88             "pavgb     %%mm3, %%mm5 \n\t"\
  89             "pand     %[pb1], %%mm4 \n\t"\
  90             "psubusb   %%mm4, %%mm5 \n\t"\
  91             "psrlq     $8,    %%mm5 \n\t"\
  92             "punpcklbw %%mm7, %%mm5 \n\t" /* (cur[x-refs+j] + cur[x+refs-j])>>1 */\
  93             "movq      %%mm2, %%mm4 \n\t"\
  94             "psubusb   %%mm3, %%mm2 \n\t"\
  95             "psubusb   %%mm4, %%mm3 \n\t"\
  96             "pmaxub    %%mm3, %%mm2 \n\t"\
  97             "movq      %%mm2, %%mm3 \n\t"\
  98             "movq      %%mm2, %%mm4 \n\t" /* ABS(cur[x-refs-1+j] - cur[x+refs-1-j]) */\
  99             "psrlq      $8,   %%mm3 \n\t" /* ABS(cur[x-refs  +j] - cur[x+refs  -j]) */\
 100             "psrlq     $16,   %%mm4 \n\t" /* ABS(cur[x-refs+1+j] - cur[x+refs+1-j]) */\
 101             "punpcklbw %%mm7, %%mm2 \n\t"\
 102             "punpcklbw %%mm7, %%mm3 \n\t"\
 103             "punpcklbw %%mm7, %%mm4 \n\t"\
 104             "paddw     %%mm3, %%mm2 \n\t"\
 105             "paddw     %%mm4, %%mm2 \n\t" /* score */
 106
 107 #define CHECK1 \
 108             "movq      %%mm0, %%mm3 \n\t"\
 109             "pcmpgtw   %%mm2, %%mm3 \n\t" /* if(score < spatial_score) */\
 110             "pminsw    %%mm2, %%mm0 \n\t" /* spatial_score= score; */\
 111             "movq      %%mm3, %%mm6 \n\t"\
 112             "pand      %%mm3, %%mm5 \n\t"\
 113             "pandn     %%mm1, %%mm3 \n\t"\
 114             "por       %%mm5, %%mm3 \n\t"\
 115             "movq      %%mm3, %%mm1 \n\t" /* spatial_pred= (cur[x-refs+j] + cur[x+refs-j])>>1; */
 116
 117 #define CHECK2 /* pretend not to have checked dir=2 if dir=1 was bad.\
 118                   hurts both quality and speed, but matches the C version. */\
 119             "paddw    %[pw1], %%mm6 \n\t"\
 120             "psllw     $14,   %%mm6 \n\t"\
 121             "paddsw    %%mm6, %%mm2 \n\t"\
 122             "movq      %%mm0, %%mm3 \n\t"\
 123             "pcmpgtw   %%mm2, %%mm3 \n\t"\
 124             "pminsw    %%mm2, %%mm0 \n\t"\
 125             "pand      %%mm3, %%mm5 \n\t"\
 126             "pandn     %%mm1, %%mm3 \n\t"\
 127             "por       %%mm5, %%mm3 \n\t"\
 128             "movq      %%mm3, %%mm1 \n\t"
 129
 130 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){
 131     static const uint64_t pw_1 = 0x0001000100010001ULL;
 132     static const uint64_t pb_1 = 0x0101010101010101ULL;
 133     const int mode = p->mode;
 134     uint64_t tmp0, tmp1, tmp2, tmp3;
 135     int x;
 136
 137 #define FILTER\
 138     for(x=0; x<w; x+=4){\
 139         __asm__ volatile(\
 140             "pxor      %%mm7, %%mm7 \n\t"\
 141             LOAD4("(%[cur],%[mrefs])", %%mm0) /* c = cur[x-refs] */\
 142             LOAD4("(%[cur],%[prefs])", %%mm1) /* e = cur[x+refs] */\
 143             LOAD4("(%["prev2"])", %%mm2) /* prev2[x] */\
 144             LOAD4("(%["next2"])", %%mm3) /* next2[x] */\
 145             "movq      %%mm3, %%mm4 \n\t"\
 146             "paddw     %%mm2, %%mm3 \n\t"\
 147             "psraw     $1,    %%mm3 \n\t" /* d = (prev2[x] + next2[x])>>1 */\
 148             "movq      %%mm0, %[tmp0] \n\t" /* c */\
 149             "movq      %%mm3, %[tmp1] \n\t" /* d */\
 150             "movq      %%mm1, %[tmp2] \n\t" /* e */\
 151             "psubw     %%mm4, %%mm2 \n\t"\
 152             PABS(      %%mm4, %%mm2) /* temporal_diff0 */\
 153             LOAD4("(%[prev],%[mrefs])", %%mm3) /* prev[x-refs] */\
 154             LOAD4("(%[prev],%[prefs])", %%mm4) /* prev[x+refs] */\
 155             "psubw     %%mm0, %%mm3 \n\t"\
 156             "psubw     %%mm1, %%mm4 \n\t"\
 157             PABS(      %%mm5, %%mm3)\
 158             PABS(      %%mm5, %%mm4)\
 159             "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff1 */\
 160             "psrlw     $1,    %%mm2 \n\t"\
 161             "psrlw     $1,    %%mm3 \n\t"\
 162             "pmaxsw    %%mm3, %%mm2 \n\t"\
 163             LOAD4("(%[next],%[mrefs])", %%mm3) /* next[x-refs] */\
 164             LOAD4("(%[next],%[prefs])", %%mm4) /* next[x+refs] */\
 165             "psubw     %%mm0, %%mm3 \n\t"\
 166             "psubw     %%mm1, %%mm4 \n\t"\
 167             PABS(      %%mm5, %%mm3)\
 168             PABS(      %%mm5, %%mm4)\
 169             "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff2 */\
 170             "psrlw     $1,    %%mm3 \n\t"\
 171             "pmaxsw    %%mm3, %%mm2 \n\t"\
 172             "movq      %%mm2, %[tmp3] \n\t" /* diff */\
 173 \
 174             "paddw     %%mm0, %%mm1 \n\t"\
 175             "paddw     %%mm0, %%mm0 \n\t"\
 176             "psubw     %%mm1, %%mm0 \n\t"\
 177             "psrlw     $1,    %%mm1 \n\t" /* spatial_pred */\
 178             PABS(      %%mm2, %%mm0)      /* ABS(c-e) */\
 179 \
 180             "movq -1(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1] */\
 181             "movq -1(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1] */\
 182             "movq      %%mm2, %%mm4 \n\t"\
 183             "psubusb   %%mm3, %%mm2 \n\t"\
 184             "psubusb   %%mm4, %%mm3 \n\t"\
 185             "pmaxub    %%mm3, %%mm2 \n\t"\
 186             "pshufw $9,%%mm2, %%mm3 \n\t"\
 187             "punpcklbw %%mm7, %%mm2 \n\t" /* ABS(cur[x-refs-1] - cur[x+refs-1]) */\
 188             "punpcklbw %%mm7, %%mm3 \n\t" /* ABS(cur[x-refs+1] - cur[x+refs+1]) */\
 189             "paddw     %%mm2, %%mm0 \n\t"\
 190             "paddw     %%mm3, %%mm0 \n\t"\
 191             "psubw    %[pw1], %%mm0 \n\t" /* spatial_score */\
 192 \
 193             CHECK(-2,0)\
 194             CHECK1\
 195             CHECK(-3,1)\
 196             CHECK2\
 197             CHECK(0,-2)\
 198             CHECK1\
 199             CHECK(1,-3)\
 200             CHECK2\
 201 \
 202             /* if(p->mode<2) ... */\
 203             "movq    %[tmp3], %%mm6 \n\t" /* diff */\
 204             "cmp       $2, %[mode] \n\t"\
 205             "jge       1f \n\t"\
 206             LOAD4("(%["prev2"],%[mrefs],2)", %%mm2) /* prev2[x-2*refs] */\
 207             LOAD4("(%["next2"],%[mrefs],2)", %%mm4) /* next2[x-2*refs] */\
 208             LOAD4("(%["prev2"],%[prefs],2)", %%mm3) /* prev2[x+2*refs] */\
 209             LOAD4("(%["next2"],%[prefs],2)", %%mm5) /* next2[x+2*refs] */\
 210             "paddw     %%mm4, %%mm2 \n\t"\
 211             "paddw     %%mm5, %%mm3 \n\t"\
 212             "psrlw     $1,    %%mm2 \n\t" /* b */\
 213             "psrlw     $1,    %%mm3 \n\t" /* f */\
 214             "movq    %[tmp0], %%mm4 \n\t" /* c */\
 215             "movq    %[tmp1], %%mm5 \n\t" /* d */\
 216             "movq    %[tmp2], %%mm7 \n\t" /* e */\
 217             "psubw     %%mm4, %%mm2 \n\t" /* b-c */\
 218             "psubw     %%mm7, %%mm3 \n\t" /* f-e */\
 219             "movq      %%mm5, %%mm0 \n\t"\
 220             "psubw     %%mm4, %%mm5 \n\t" /* d-c */\
 221             "psubw     %%mm7, %%mm0 \n\t" /* d-e */\
 222             "movq      %%mm2, %%mm4 \n\t"\
 223             "pminsw    %%mm3, %%mm2 \n\t"\
 224             "pmaxsw    %%mm4, %%mm3 \n\t"\
 225             "pmaxsw    %%mm5, %%mm2 \n\t"\
 226             "pminsw    %%mm5, %%mm3 \n\t"\
 227             "pmaxsw    %%mm0, %%mm2 \n\t" /* max */\
 228             "pminsw    %%mm0, %%mm3 \n\t" /* min */\
 229             "pxor      %%mm4, %%mm4 \n\t"\
 230             "pmaxsw    %%mm3, %%mm6 \n\t"\
 231             "psubw     %%mm2, %%mm4 \n\t" /* -max */\
 232             "pmaxsw    %%mm4, %%mm6 \n\t" /* diff= MAX3(diff, min, -max); */\
 233             "1: \n\t"\
 234 \
 235             "movq    %[tmp1], %%mm2 \n\t" /* d */\
 236             "movq      %%mm2, %%mm3 \n\t"\
 237             "psubw     %%mm6, %%mm2 \n\t" /* d-diff */\
 238             "paddw     %%mm6, %%mm3 \n\t" /* d+diff */\
 239             "pmaxsw    %%mm2, %%mm1 \n\t"\
 240             "pminsw    %%mm3, %%mm1 \n\t" /* d = clip(spatial_pred, d-diff, d+diff); */\
 241             "packuswb  %%mm1, %%mm1 \n\t"\
 242 \
 243             :[tmp0]"=m"(tmp0),\
 244              [tmp1]"=m"(tmp1),\
 245              [tmp2]"=m"(tmp2),\
 246              [tmp3]"=m"(tmp3)\
 247             :[prev] "r"(prev),\
 248              [cur]  "r"(cur),\
 249              [next] "r"(next),\
 250              [prefs]"r"((long)refs),\
 251              [mrefs]"r"((long)-refs),\
 252              [pw1]  "m"(pw_1),\
 253              [pb1]  "m"(pb_1),\
 254              [mode] "g"(mode)\
 255         );\
 256         __asm__ volatile("movd %%mm1, %0" :"=m"(*dst));\
 257         dst += 4;\
 258         prev+= 4;\
 259         cur += 4;\
 260         next+= 4;\
 261     }
 262
 263     if(parity){
 264 #define prev2 "prev"
 265 #define next2 "cur"
 266         FILTER
 267 #undef prev2
 268 #undef next2
 269     }else{
 270 #define prev2 "cur"
 271 #define next2 "next"
 272         FILTER
 273 #undef prev2
 274 #undef next2
 275     }
 276 }
 277 #undef LOAD4
 278 #undef PABS
 279 #undef CHECK
 280 #undef CHECK1
 281 #undef CHECK2
 282 #undef FILTER
 283
 284 #endif /* HAVE_MMX && defined(NAMED_ASM_ARGS) */
 285
 286 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){
 287     int x;
 288     uint8_t *prev2= parity ? prev : cur ;
 289     uint8_t *next2= parity ? cur  : next;
 290     for(x=0; x<w; x++){
 291         int c= cur[-refs];
 292         int d= (prev2[0] + next2[0])>>1;
 293         int e= cur[+refs];
 294         int temporal_diff0= FFABS(prev2[0] - next2[0]);
 295         int temporal_diff1=( FFABS(prev[-refs] - c) + FFABS(prev[+refs] - e) )>>1;
 296         int temporal_diff2=( FFABS(next[-refs] - c) + FFABS(next[+refs] - e) )>>1;
 297         int diff= FFMAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
 298         int spatial_pred= (c+e)>>1;
 299         int spatial_score= FFABS(cur[-refs-1] - cur[+refs-1]) + FFABS(c-e)
 300                          + FFABS(cur[-refs+1] - cur[+refs+1]) - 1;
 301
 302 #define CHECK(j)\
 303     {   int score= FFABS(cur[-refs-1+j] - cur[+refs-1-j])\
 304                  + FFABS(cur[-refs  +j] - cur[+refs  -j])\
 305                  + FFABS(cur[-refs+1+j] - cur[+refs+1-j]);\
 306         if(score < spatial_score){\
 307             spatial_score= score;\
 308             spatial_pred= (cur[-refs  +j] + cur[+refs  -j])>>1;\
 309
 310         CHECK(-1) CHECK(-2) }} }}
 311         CHECK( 1) CHECK( 2) }} }}
 312
 313         if(p->mode<2){
 314             int b= (prev2[-2*refs] + next2[-2*refs])>>1;
 315             int f= (prev2[+2*refs] + next2[+2*refs])>>1;
 316 #if 0
 317             int a= cur[-3*refs];
 318             int g= cur[+3*refs];
 319             int max= FFMAX3(d-e, d-c, FFMIN3(FFMAX(b-c,f-e),FFMAX(b-c,b-a),FFMAX(f-g,f-e)) );
 320             int min= FFMIN3(d-e, d-c, FFMAX3(FFMIN(b-c,f-e),FFMIN(b-c,b-a),FFMIN(f-g,f-e)) );
 321 #else
 322             int max= FFMAX3(d-e, d-c, FFMIN(b-c, f-e));
 323             int min= FFMIN3(d-e, d-c, FFMAX(b-c, f-e));
 324 #endif
 325
 326             diff= FFMAX3(diff, min, -max);
 327         }
 328
 329         if(spatial_pred > d + diff)
 330            spatial_pred = d + diff;
 331         else if(spatial_pred < d - diff)
 332            spatial_pred = d - diff;
 333
 334         dst[0] = spatial_pred;
 335
 336         dst++;
 337         cur++;
 338         prev++;
 339         next++;
 340         prev2++;
 341         next2++;
 342     }
 343 }
 344
 345 static void filter(struct vf_priv_s *p, uint8_t *dst[3], int dst_stride[3], int width, int height, int parity, int tff){
 346     int y, i;
 347
 348     for(i=0; i<3; i++){
 349         int is_chroma= !!i;
 350         int w= width >>is_chroma;
 351         int h= height>>is_chroma;
 352         int refs= p->stride[i];
 353
 354         for(y=0; y<h; y++){
 355             if((y ^ parity) & 1){
 356                 uint8_t *prev= &p->ref[0][i][y*refs];
 357                 uint8_t *cur = &p->ref[1][i][y*refs];
 358                 uint8_t *next= &p->ref[2][i][y*refs];
 359                 uint8_t *dst2= &dst[i][y*dst_stride[i]];
 360                 filter_line(p, dst2, prev, cur, next, w, refs, parity ^ tff);
 361             }else{
 362                 fast_memcpy(&dst[i][y*dst_stride[i]], &p->ref[1][i][y*refs], w);
 363             }
 364         }
 365     }
 366 #if HAVE_MMX && defined(NAMED_ASM_ARGS)
 367     if(gCpuCaps.hasMMX2) __asm__ volatile("emms \n\t" : : : "memory");
 368 #endif
 369 }
 370
 371 static int config(struct vf_instance_s* vf,
 372         int width, int height, int d_width, int d_height,
 373         unsigned int flags, unsigned int outfmt){
 374         int i, j;
 375
 376         for(i=0; i<3; i++){
 377             int is_chroma= !!i;
 378             int w= ((width   + 31) & (~31))>>is_chroma;
 379             int h= ((height+6+ 31) & (~31))>>is_chroma;
 380
 381             vf->priv->stride[i]= w;
 382             for(j=0; j<3; j++)
 383                 vf->priv->ref[j][i]= malloc(w*h*sizeof(uint8_t))+3*w;
 384         }
 385
 386         return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 387 }
 388
 389 static int continue_buffered_image(struct vf_instance_s *vf);
 390 extern int correct_pts;
 391
 392 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
 393     int tff;
 394
 395     if(vf->priv->parity < 0) {
 396         if (mpi->fields & MP_IMGFIELD_ORDERED)
 397             tff = !!(mpi->fields & MP_IMGFIELD_TOP_FIRST);
 398         else
 399             tff = 1;
 400     }
 401     else tff = (vf->priv->parity&1)^1;
 402
 403     store_ref(vf->priv, mpi->planes, mpi->stride, mpi->w, mpi->h);
 404
 405     vf->priv->buffered_mpi = mpi;
 406     vf->priv->buffered_tff = tff;
 407     vf->priv->buffered_i = 0;
 408     vf->priv->buffered_pts = pts;
 409
 410     if(vf->priv->do_deinterlace == 0)
 411         return vf_next_put_image(vf, mpi, pts);
 412     else if(vf->priv->do_deinterlace == 1){
 413         vf->priv->do_deinterlace= 2;
 414         return 0;
 415     }else
 416         return continue_buffered_image(vf);
 417 }
 418
 419 static int continue_buffered_image(struct vf_instance_s *vf)
 420 {
 421     mp_image_t *mpi = vf->priv->buffered_mpi;
 422     int tff = vf->priv->buffered_tff;
 423     double pts = vf->priv->buffered_pts;
 424     int i;
 425     int ret=0;
 426     mp_image_t *dmpi;
 427
 428     pts += vf->priv->buffered_i * .02; // XXX not right
 429
 430     for(i = vf->priv->buffered_i; i<=(vf->priv->mode&1); i++){
 431         dmpi=vf_get_image(vf->next,mpi->imgfmt,
 432             MP_IMGTYPE_TEMP,
 433             MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
 434             mpi->width,mpi->height);
 435         vf_clone_mpi_attributes(dmpi, mpi);
 436         filter(vf->priv, dmpi->planes, dmpi->stride, mpi->w, mpi->h, i ^ tff ^ 1, tff);
 437         if (correct_pts && i < (vf->priv->mode & 1))
 438             vf_queue_frame(vf, continue_buffered_image);
 439         ret |= vf_next_put_image(vf, dmpi, pts /*FIXME*/);
 440         if (correct_pts)
 441             break;
 442         if(i<(vf->priv->mode&1))
 443             vf_extra_flip(vf);
 444     }
 445     vf->priv->buffered_i = 1;
 446     return ret;
 447 }
 448
 449 static void uninit(struct vf_instance_s* vf){
 450     int i;
 451     if(!vf->priv) return;
 452
 453     for(i=0; i<3*3; i++){
 454         uint8_t **p= &vf->priv->ref[i%3][i/3];
 455         if(*p) free(*p - 3*vf->priv->stride[i/3]);
 456         *p= NULL;
 457     }
 458     free(vf->priv);
 459     vf->priv=NULL;
 460 }
 461
 462 //===========================================================================//
 463 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
 464     switch(fmt){
 465         case IMGFMT_YV12:
 466         case IMGFMT_I420:
 467         case IMGFMT_IYUV:
 468         case IMGFMT_Y800:
 469         case IMGFMT_Y8:
 470             return vf_next_query_format(vf,fmt);
 471     }
 472     return 0;
 473 }
 474
 475 static int control(struct vf_instance_s* vf, int request, void* data){
 476     switch (request){
 477       case VFCTRL_GET_DEINTERLACE:
 478         *(int*)data = vf->priv->do_deinterlace;
 479         return CONTROL_OK;
 480       case VFCTRL_SET_DEINTERLACE:
 481         vf->priv->do_deinterlace = 2*!!*(int*)data;
 482         return CONTROL_OK;
 483     }
 484     return vf_next_control (vf, request, data);
 485 }
 486
 487 static int open(vf_instance_t *vf, char* args){
 488
 489     vf->config=config;
 490     vf->put_image=put_image;
 491     vf->query_format=query_format;
 492     vf->uninit=uninit;
 493     vf->priv=malloc(sizeof(struct vf_priv_s));
 494     vf->control=control;
 495     memset(vf->priv, 0, sizeof(struct vf_priv_s));
 496
 497     vf->priv->mode=0;
 498     vf->priv->parity= -1;
 499     vf->priv->do_deinterlace=1;
 500
 501     if (args) sscanf(args, "%d:%d", &vf->priv->mode, &vf->priv->parity);
 502
 503     filter_line = filter_line_c;
 504 #if HAVE_MMX && defined(NAMED_ASM_ARGS)
 505     if(gCpuCaps.hasMMX2) filter_line = filter_line_mmx2;
 506 #endif
 507
 508     return 1;
 509 }
 510
 511 const vf_info_t vf_info_yadif = {
 512     "Yet Another DeInterlacing Filter",
 513     "yadif",
 514     "Michael Niedermayer",
 515     "",
 516     open,
 517     NULL
 518 };