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 #include "options.h"
  30
  31 #include "mp_msg.h"
  32
  33 #ifdef HAVE_MALLOC_H
  34 #include <malloc.h>
  35 #endif
  36
  37 #include "img_format.h"
  38 #include "mp_image.h"
  39 #include "vf.h"
  40 #include "libvo/fastmemcpy.h"
  41
  42 #define MIN(a,b) ((a) > (b) ? (b) : (a))
  43 #define MAX(a,b) ((a) < (b) ? (b) : (a))
  44 #define ABS(a) ((a) > 0 ? (a) : (-(a)))
  45
  46 #define MIN3(a,b,c) MIN(MIN(a,b),c)
  47 #define MAX3(a,b,c) MAX(MAX(a,b),c)
  48
  49 //===========================================================================//
  50
  51 struct vf_priv_s {
  52     int mode;
  53     int parity;
  54     int buffered_i;
  55     int buffered_tff;
  56     double buffered_pts;
  57     mp_image_t *buffered_mpi;
  58     int stride[3];
  59     uint8_t *ref[4][3];
  60     int do_deinterlace;
  61 };
  62
  63 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);
  64
  65 static void store_ref(struct vf_priv_s *p, uint8_t *src[3], int src_stride[3], int width, int height){
  66     int i;
  67
  68     memcpy (p->ref[3], p->ref[0], sizeof(uint8_t *)*3);
  69     memmove(p->ref[0], p->ref[1], sizeof(uint8_t *)*3*3);
  70
  71     for(i=0; i<3; i++){
  72         int is_chroma= !!i;
  73
  74         memcpy_pic(p->ref[2][i], src[i], width>>is_chroma, height>>is_chroma, p->stride[i], src_stride[i]);
  75     }
  76 }
  77
  78 #if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
  79
  80 #define LOAD4(mem,dst) \
  81             "movd      "mem", "#dst" \n\t"\
  82             "punpcklbw %%mm7, "#dst" \n\t"
  83
  84 #define PABS(tmp,dst) \
  85             "pxor     "#tmp", "#tmp" \n\t"\
  86             "psubw    "#dst", "#tmp" \n\t"\
  87             "pmaxsw   "#tmp", "#dst" \n\t"
  88
  89 #define CHECK(pj,mj) \
  90             "movq "#pj"(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1+j] */\
  91             "movq "#mj"(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1-j] */\
  92             "movq      %%mm2, %%mm4 \n\t"\
  93             "movq      %%mm2, %%mm5 \n\t"\
  94             "pxor      %%mm3, %%mm4 \n\t"\
  95             "pavgb     %%mm3, %%mm5 \n\t"\
  96             "pand     %[pb1], %%mm4 \n\t"\
  97             "psubusb   %%mm4, %%mm5 \n\t"\
  98             "psrlq     $8,    %%mm5 \n\t"\
  99             "punpcklbw %%mm7, %%mm5 \n\t" /* (cur[x-refs+j] + cur[x+refs-j])>>1 */\
 100             "movq      %%mm2, %%mm4 \n\t"\
 101             "psubusb   %%mm3, %%mm2 \n\t"\
 102             "psubusb   %%mm4, %%mm3 \n\t"\
 103             "pmaxub    %%mm3, %%mm2 \n\t"\
 104             "movq      %%mm2, %%mm3 \n\t"\
 105             "movq      %%mm2, %%mm4 \n\t" /* ABS(cur[x-refs-1+j] - cur[x+refs-1-j]) */\
 106             "psrlq      $8,   %%mm3 \n\t" /* ABS(cur[x-refs  +j] - cur[x+refs  -j]) */\
 107             "psrlq     $16,   %%mm4 \n\t" /* ABS(cur[x-refs+1+j] - cur[x+refs+1-j]) */\
 108             "punpcklbw %%mm7, %%mm2 \n\t"\
 109             "punpcklbw %%mm7, %%mm3 \n\t"\
 110             "punpcklbw %%mm7, %%mm4 \n\t"\
 111             "paddw     %%mm3, %%mm2 \n\t"\
 112             "paddw     %%mm4, %%mm2 \n\t" /* score */
 113
 114 #define CHECK1 \
 115             "movq      %%mm0, %%mm3 \n\t"\
 116             "pcmpgtw   %%mm2, %%mm3 \n\t" /* if(score < spatial_score) */\
 117             "pminsw    %%mm2, %%mm0 \n\t" /* spatial_score= score; */\
 118             "movq      %%mm3, %%mm6 \n\t"\
 119             "pand      %%mm3, %%mm5 \n\t"\
 120             "pandn     %%mm1, %%mm3 \n\t"\
 121             "por       %%mm5, %%mm3 \n\t"\
 122             "movq      %%mm3, %%mm1 \n\t" /* spatial_pred= (cur[x-refs+j] + cur[x+refs-j])>>1; */
 123
 124 #define CHECK2 /* pretend not to have checked dir=2 if dir=1 was bad.\
 125                   hurts both quality and speed, but matches the C version. */\
 126             "paddw    %[pw1], %%mm6 \n\t"\
 127             "psllw     $14,   %%mm6 \n\t"\
 128             "paddsw    %%mm6, %%mm2 \n\t"\
 129             "movq      %%mm0, %%mm3 \n\t"\
 130             "pcmpgtw   %%mm2, %%mm3 \n\t"\
 131             "pminsw    %%mm2, %%mm0 \n\t"\
 132             "pand      %%mm3, %%mm5 \n\t"\
 133             "pandn     %%mm1, %%mm3 \n\t"\
 134             "por       %%mm5, %%mm3 \n\t"\
 135             "movq      %%mm3, %%mm1 \n\t"
 136
 137 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){
 138     static const uint64_t pw_1 = 0x0001000100010001ULL;
 139     static const uint64_t pb_1 = 0x0101010101010101ULL;
 140     const int mode = p->mode;
 141     uint64_t tmp0, tmp1, tmp2, tmp3;
 142     int x;
 143
 144 #define FILTER\
 145     for(x=0; x<w; x+=4){\
 146         asm volatile(\
 147             "pxor      %%mm7, %%mm7 \n\t"\
 148             LOAD4("(%[cur],%[mrefs])", %%mm0) /* c = cur[x-refs] */\
 149             LOAD4("(%[cur],%[prefs])", %%mm1) /* e = cur[x+refs] */\
 150             LOAD4("(%["prev2"])", %%mm2) /* prev2[x] */\
 151             LOAD4("(%["next2"])", %%mm3) /* next2[x] */\
 152             "movq      %%mm3, %%mm4 \n\t"\
 153             "paddw     %%mm2, %%mm3 \n\t"\
 154             "psraw     $1,    %%mm3 \n\t" /* d = (prev2[x] + next2[x])>>1 */\
 155             "movq      %%mm0, %[tmp0] \n\t" /* c */\
 156             "movq      %%mm3, %[tmp1] \n\t" /* d */\
 157             "movq      %%mm1, %[tmp2] \n\t" /* e */\
 158             "psubw     %%mm4, %%mm2 \n\t"\
 159             PABS(      %%mm4, %%mm2) /* temporal_diff0 */\
 160             LOAD4("(%[prev],%[mrefs])", %%mm3) /* prev[x-refs] */\
 161             LOAD4("(%[prev],%[prefs])", %%mm4) /* prev[x+refs] */\
 162             "psubw     %%mm0, %%mm3 \n\t"\
 163             "psubw     %%mm1, %%mm4 \n\t"\
 164             PABS(      %%mm5, %%mm3)\
 165             PABS(      %%mm5, %%mm4)\
 166             "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff1 */\
 167             "psrlw     $1,    %%mm2 \n\t"\
 168             "psrlw     $1,    %%mm3 \n\t"\
 169             "pmaxsw    %%mm3, %%mm2 \n\t"\
 170             LOAD4("(%[next],%[mrefs])", %%mm3) /* next[x-refs] */\
 171             LOAD4("(%[next],%[prefs])", %%mm4) /* next[x+refs] */\
 172             "psubw     %%mm0, %%mm3 \n\t"\
 173             "psubw     %%mm1, %%mm4 \n\t"\
 174             PABS(      %%mm5, %%mm3)\
 175             PABS(      %%mm5, %%mm4)\
 176             "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff2 */\
 177             "psrlw     $1,    %%mm3 \n\t"\
 178             "pmaxsw    %%mm3, %%mm2 \n\t"\
 179             "movq      %%mm2, %[tmp3] \n\t" /* diff */\
 180 \
 181             "paddw     %%mm0, %%mm1 \n\t"\
 182             "paddw     %%mm0, %%mm0 \n\t"\
 183             "psubw     %%mm1, %%mm0 \n\t"\
 184             "psrlw     $1,    %%mm1 \n\t" /* spatial_pred */\
 185             PABS(      %%mm2, %%mm0)      /* ABS(c-e) */\
 186 \
 187             "movq -1(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1] */\
 188             "movq -1(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1] */\
 189             "movq      %%mm2, %%mm4 \n\t"\
 190             "psubusb   %%mm3, %%mm2 \n\t"\
 191             "psubusb   %%mm4, %%mm3 \n\t"\
 192             "pmaxub    %%mm3, %%mm2 \n\t"\
 193             "pshufw $9,%%mm2, %%mm3 \n\t"\
 194             "punpcklbw %%mm7, %%mm2 \n\t" /* ABS(cur[x-refs-1] - cur[x+refs-1]) */\
 195             "punpcklbw %%mm7, %%mm3 \n\t" /* ABS(cur[x-refs+1] - cur[x+refs+1]) */\
 196             "paddw     %%mm2, %%mm0 \n\t"\
 197             "paddw     %%mm3, %%mm0 \n\t"\
 198             "psubw    %[pw1], %%mm0 \n\t" /* spatial_score */\
 199 \
 200             CHECK(-2,0)\
 201             CHECK1\
 202             CHECK(-3,1)\
 203             CHECK2\
 204             CHECK(0,-2)\
 205             CHECK1\
 206             CHECK(1,-3)\
 207             CHECK2\
 208 \
 209             /* if(p->mode<2) ... */\
 210             "movq    %[tmp3], %%mm6 \n\t" /* diff */\
 211             "cmp       $2, %[mode] \n\t"\
 212             "jge       1f \n\t"\
 213             LOAD4("(%["prev2"],%[mrefs],2)", %%mm2) /* prev2[x-2*refs] */\
 214             LOAD4("(%["next2"],%[mrefs],2)", %%mm4) /* next2[x-2*refs] */\
 215             LOAD4("(%["prev2"],%[prefs],2)", %%mm3) /* prev2[x+2*refs] */\
 216             LOAD4("(%["next2"],%[prefs],2)", %%mm5) /* next2[x+2*refs] */\
 217             "paddw     %%mm4, %%mm2 \n\t"\
 218             "paddw     %%mm5, %%mm3 \n\t"\
 219             "psrlw     $1,    %%mm2 \n\t" /* b */\
 220             "psrlw     $1,    %%mm3 \n\t" /* f */\
 221             "movq    %[tmp0], %%mm4 \n\t" /* c */\
 222             "movq    %[tmp1], %%mm5 \n\t" /* d */\
 223             "movq    %[tmp2], %%mm7 \n\t" /* e */\
 224             "psubw     %%mm4, %%mm2 \n\t" /* b-c */\
 225             "psubw     %%mm7, %%mm3 \n\t" /* f-e */\
 226             "movq      %%mm5, %%mm0 \n\t"\
 227             "psubw     %%mm4, %%mm5 \n\t" /* d-c */\
 228             "psubw     %%mm7, %%mm0 \n\t" /* d-e */\
 229             "movq      %%mm2, %%mm4 \n\t"\
 230             "pminsw    %%mm3, %%mm2 \n\t"\
 231             "pmaxsw    %%mm4, %%mm3 \n\t"\
 232             "pmaxsw    %%mm5, %%mm2 \n\t"\
 233             "pminsw    %%mm5, %%mm3 \n\t"\
 234             "pmaxsw    %%mm0, %%mm2 \n\t" /* max */\
 235             "pminsw    %%mm0, %%mm3 \n\t" /* min */\
 236             "pxor      %%mm4, %%mm4 \n\t"\
 237             "pmaxsw    %%mm3, %%mm6 \n\t"\
 238             "psubw     %%mm2, %%mm4 \n\t" /* -max */\
 239             "pmaxsw    %%mm4, %%mm6 \n\t" /* diff= MAX3(diff, min, -max); */\
 240             "1: \n\t"\
 241 \
 242             "movq    %[tmp1], %%mm2 \n\t" /* d */\
 243             "movq      %%mm2, %%mm3 \n\t"\
 244             "psubw     %%mm6, %%mm2 \n\t" /* d-diff */\
 245             "paddw     %%mm6, %%mm3 \n\t" /* d+diff */\
 246             "pmaxsw    %%mm2, %%mm1 \n\t"\
 247             "pminsw    %%mm3, %%mm1 \n\t" /* d = clip(spatial_pred, d-diff, d+diff); */\
 248             "packuswb  %%mm1, %%mm1 \n\t"\
 249 \
 250             :[tmp0]"=m"(tmp0),\
 251              [tmp1]"=m"(tmp1),\
 252              [tmp2]"=m"(tmp2),\
 253              [tmp3]"=m"(tmp3)\
 254             :[prev] "r"(prev),\
 255              [cur]  "r"(cur),\
 256              [next] "r"(next),\
 257              [prefs]"r"((long)refs),\
 258              [mrefs]"r"((long)-refs),\
 259              [pw1]  "m"(pw_1),\
 260              [pb1]  "m"(pb_1),\
 261              [mode] "g"(mode)\
 262         );\
 263         asm volatile("movd %%mm1, %0" :"=m"(*dst));\
 264         dst += 4;\
 265         prev+= 4;\
 266         cur += 4;\
 267         next+= 4;\
 268     }
 269
 270     if(parity){
 271 #define prev2 "prev"
 272 #define next2 "cur"
 273         FILTER
 274 #undef prev2
 275 #undef next2
 276     }else{
 277 #define prev2 "cur"
 278 #define next2 "next"
 279         FILTER
 280 #undef prev2
 281 #undef next2
 282     }
 283 }
 284 #undef LOAD4
 285 #undef PABS
 286 #undef CHECK
 287 #undef CHECK1
 288 #undef CHECK2
 289 #undef FILTER
 290
 291 #endif /* defined(HAVE_MMX) && defined(NAMED_ASM_ARGS) */
 292
 293 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){
 294     int x;
 295     uint8_t *prev2= parity ? prev : cur ;
 296     uint8_t *next2= parity ? cur  : next;
 297     for(x=0; x<w; x++){
 298         int c= cur[-refs];
 299         int d= (prev2[0] + next2[0])>>1;
 300         int e= cur[+refs];
 301         int temporal_diff0= ABS(prev2[0] - next2[0]);
 302         int temporal_diff1=( ABS(prev[-refs] - c) + ABS(prev[+refs] - e) )>>1;
 303         int temporal_diff2=( ABS(next[-refs] - c) + ABS(next[+refs] - e) )>>1;
 304         int diff= MAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
 305         int spatial_pred= (c+e)>>1;
 306         int spatial_score= ABS(cur[-refs-1] - cur[+refs-1]) + ABS(c-e)
 307                          + ABS(cur[-refs+1] - cur[+refs+1]) - 1;
 308
 309 #define CHECK(j)\
 310     {   int score= ABS(cur[-refs-1+j] - cur[+refs-1-j])\
 311                  + ABS(cur[-refs  +j] - cur[+refs  -j])\
 312                  + ABS(cur[-refs+1+j] - cur[+refs+1-j]);\
 313         if(score < spatial_score){\
 314             spatial_score= score;\
 315             spatial_pred= (cur[-refs  +j] + cur[+refs  -j])>>1;\
 316
 317         CHECK(-1) CHECK(-2) }} }}
 318         CHECK( 1) CHECK( 2) }} }}
 319
 320         if(p->mode<2){
 321             int b= (prev2[-2*refs] + next2[-2*refs])>>1;
 322             int f= (prev2[+2*refs] + next2[+2*refs])>>1;
 323 #if 0
 324             int a= cur[-3*refs];
 325             int g= cur[+3*refs];
 326             int max= MAX3(d-e, d-c, MIN3(MAX(b-c,f-e),MAX(b-c,b-a),MAX(f-g,f-e)) );
 327             int min= MIN3(d-e, d-c, MAX3(MIN(b-c,f-e),MIN(b-c,b-a),MIN(f-g,f-e)) );
 328 #else
 329             int max= MAX3(d-e, d-c, MIN(b-c, f-e));
 330             int min= MIN3(d-e, d-c, MAX(b-c, f-e));
 331 #endif
 332
 333             diff= MAX3(diff, min, -max);
 334         }
 335
 336         if(spatial_pred > d + diff)
 337            spatial_pred = d + diff;
 338         else if(spatial_pred < d - diff)
 339            spatial_pred = d - diff;
 340
 341         dst[0] = spatial_pred;
 342
 343         dst++;
 344         cur++;
 345         prev++;
 346         next++;
 347         prev2++;
 348         next2++;
 349     }
 350 }
 351
 352 static void filter(struct vf_priv_s *p, uint8_t *dst[3], int dst_stride[3], int width, int height, int parity, int tff){
 353     int y, i;
 354
 355     for(i=0; i<3; i++){
 356         int is_chroma= !!i;
 357         int w= width >>is_chroma;
 358         int h= height>>is_chroma;
 359         int refs= p->stride[i];
 360
 361         for(y=0; y<h; y++){
 362             if((y ^ parity) & 1){
 363                 uint8_t *prev= &p->ref[0][i][y*refs];
 364                 uint8_t *cur = &p->ref[1][i][y*refs];
 365                 uint8_t *next= &p->ref[2][i][y*refs];
 366                 uint8_t *dst2= &dst[i][y*dst_stride[i]];
 367                 filter_line(p, dst2, prev, cur, next, w, refs, parity ^ tff);
 368             }else{
 369                 fast_memcpy(&dst[i][y*dst_stride[i]], &p->ref[1][i][y*refs], w);
 370             }
 371         }
 372     }
 373 #if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
 374     if(gCpuCaps.hasMMX2) asm volatile("emms \n\t" : : : "memory");
 375 #endif
 376 }
 377
 378 static int config(struct vf_instance* vf,
 379         int width, int height, int d_width, int d_height,
 380         unsigned int flags, unsigned int outfmt){
 381         int i, j;
 382
 383         for(i=0; i<3; i++){
 384             int is_chroma= !!i;
 385             int w= ((width   + 31) & (~31))>>is_chroma;
 386             int h= ((height+6+ 31) & (~31))>>is_chroma;
 387
 388             vf->priv->stride[i]= w;
 389             for(j=0; j<3; j++)
 390                 vf->priv->ref[j][i]= malloc(w*h*sizeof(uint8_t))+3*w;
 391         }
 392
 393         return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 394 }
 395
 396 static int continue_buffered_image(struct vf_instance *vf);
 397
 398 static int put_image(struct vf_instance* vf, mp_image_t *mpi, double pts){
 399     int tff;
 400
 401     if(vf->priv->parity < 0) {
 402         if (mpi->fields & MP_IMGFIELD_ORDERED)
 403             tff = !!(mpi->fields & MP_IMGFIELD_TOP_FIRST);
 404         else
 405             tff = 1;
 406     }
 407     else tff = (vf->priv->parity&1)^1;
 408
 409     store_ref(vf->priv, mpi->planes, mpi->stride, mpi->w, mpi->h);
 410
 411     vf->priv->buffered_mpi = mpi;
 412     vf->priv->buffered_tff = tff;
 413     vf->priv->buffered_i = 0;
 414     vf->priv->buffered_pts = pts;
 415
 416     if(vf->priv->do_deinterlace == 0)
 417         return vf_next_put_image(vf, mpi, pts);
 418     else if(vf->priv->do_deinterlace == 1){
 419         vf->priv->do_deinterlace= 2;
 420         return 0;
 421     }else
 422         return continue_buffered_image(vf);
 423 }
 424
 425 static int continue_buffered_image(struct vf_instance *vf)
 426 {
 427     struct MPOpts *opts = vf->opts;
 428     mp_image_t *mpi = vf->priv->buffered_mpi;
 429     int tff = vf->priv->buffered_tff;
 430     double pts = vf->priv->buffered_pts;
 431     int i;
 432     int ret=0;
 433     mp_image_t *dmpi;
 434
 435     pts += vf->priv->buffered_i * .02; // XXX not right
 436
 437     for(i = vf->priv->buffered_i; i<=(vf->priv->mode&1); i++){
 438         dmpi=vf_get_image(vf->next,mpi->imgfmt,
 439             MP_IMGTYPE_TEMP,
 440             MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
 441             mpi->width,mpi->height);
 442         vf_clone_mpi_attributes(dmpi, mpi);
 443         filter(vf->priv, dmpi->planes, dmpi->stride, mpi->w, mpi->h, i ^ tff ^ 1, tff);
 444         if (opts->correct_pts && i < (vf->priv->mode & 1))
 445             vf_queue_frame(vf, continue_buffered_image);
 446         ret |= vf_next_put_image(vf, dmpi, pts /*FIXME*/);
 447         if (opts->correct_pts)
 448             break;
 449         if(i<(vf->priv->mode&1))
 450             vf_next_control(vf, VFCTRL_FLIP_PAGE, NULL);
 451     }
 452     vf->priv->buffered_i = 1;
 453     return ret;
 454 }
 455
 456 static void uninit(struct vf_instance* vf){
 457     int i;
 458     if(!vf->priv) return;
 459
 460     for(i=0; i<3*3; i++){
 461         uint8_t **p= &vf->priv->ref[i%3][i/3];
 462         if(*p) free(*p - 3*vf->priv->stride[i/3]);
 463         *p= NULL;
 464     }
 465     free(vf->priv);
 466     vf->priv=NULL;
 467 }
 468
 469 //===========================================================================//
 470 static int query_format(struct vf_instance* vf, unsigned int fmt){
 471     switch(fmt){
 472         case IMGFMT_YV12:
 473         case IMGFMT_I420:
 474         case IMGFMT_IYUV:
 475         case IMGFMT_Y800:
 476         case IMGFMT_Y8:
 477             return vf_next_query_format(vf,fmt);
 478     }
 479     return 0;
 480 }
 481
 482 static int control(struct vf_instance* vf, int request, void* data){
 483     switch (request){
 484       case VFCTRL_GET_DEINTERLACE:
 485         *(int*)data = vf->priv->do_deinterlace;
 486         return CONTROL_OK;
 487       case VFCTRL_SET_DEINTERLACE:
 488         vf->priv->do_deinterlace = 2*!!*(int*)data;
 489         return CONTROL_OK;
 490     }
 491     return vf_next_control (vf, request, data);
 492 }
 493
 494 static int open(vf_instance_t *vf, char* args){
 495
 496     vf->config=config;
 497     vf->put_image=put_image;
 498     vf->query_format=query_format;
 499     vf->uninit=uninit;
 500     vf->priv=malloc(sizeof(struct vf_priv_s));
 501     vf->control=control;
 502     memset(vf->priv, 0, sizeof(struct vf_priv_s));
 503
 504     vf->priv->mode=0;
 505     vf->priv->parity= -1;
 506     vf->priv->do_deinterlace=1;
 507
 508     if (args) sscanf(args, "%d:%d", &vf->priv->mode, &vf->priv->parity);
 509
 510     filter_line = filter_line_c;
 511 #if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
 512     if(gCpuCaps.hasMMX2) filter_line = filter_line_mmx2;
 513 #endif
 514
 515     return 1;
 516 }
 517
 518 const vf_info_t vf_info_yadif = {
 519     "Yet Another DeInterlacing Filter",
 520     "yadif",
 521     "Michael Niedermayer",
 522     "",
 523     open,
 524     NULL
 525 };