libmpcodecs/vf_yadif.c

   1 /*
   2     Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  17 */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <inttypes.h>
  23 #include <math.h>
  24
  25 #include "config.h"
  26 #include "cpudetect.h"
  27
  28 #include "mp_msg.h"
  29
  30 #ifdef HAVE_MALLOC_H
  31 #include <malloc.h>
  32 #endif
  33
  34 #include "img_format.h"
  35 #include "mp_image.h"
  36 #include "vf.h"
  37 #include "libvo/fastmemcpy.h"
  38
  39 #define MIN(a,b) ((a) > (b) ? (b) : (a))
  40 #define MAX(a,b) ((a) < (b) ? (b) : (a))
  41 #define ABS(a) ((a) > 0 ? (a) : (-(a)))
  42
  43 #define MIN3(a,b,c) MIN(MIN(a,b),c)
  44 #define MAX3(a,b,c) MAX(MAX(a,b),c)
  45
  46 //===========================================================================//
  47
  48 struct vf_priv_s {
  49     int mode;
  50     int parity;
  51     int buffered_i;
  52     int buffered_tff;
  53     double buffered_pts;
  54     mp_image_t *buffered_mpi;
  55     int stride[3];
  56     uint8_t *ref[4][3];
  57     int do_deinterlace;
  58 };
  59
  60 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);
  61
  62 static void store_ref(struct vf_priv_s *p, uint8_t *src[3], int src_stride[3], int width, int height){
  63     int i;
  64
  65     memcpy (p->ref[3], p->ref[0], sizeof(uint8_t *)*3);
  66     memmove(p->ref[0], p->ref[1], sizeof(uint8_t *)*3*3);
  67
  68     for(i=0; i<3; i++){
  69         int is_chroma= !!i;
  70
  71         memcpy_pic(p->ref[2][i], src[i], width>>is_chroma, height>>is_chroma, p->stride[i], src_stride[i]);
  72     }
  73 }
  74
  75 #if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
  76
  77 #define LOAD4(mem,dst) \
  78             "movd      "mem", "#dst" \n\t"\
  79             "punpcklbw %%mm7, "#dst" \n\t"
  80
  81 #define PABS(tmp,dst) \
  82             "pxor     "#tmp", "#tmp" \n\t"\
  83             "psubw    "#dst", "#tmp" \n\t"\
  84             "pmaxsw   "#tmp", "#dst" \n\t"
  85
  86 #define CHECK(pj,mj) \
  87             "movq "#pj"(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1+j] */\
  88             "movq "#mj"(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1-j] */\
  89             "movq      %%mm2, %%mm4 \n\t"\
  90             "movq      %%mm2, %%mm5 \n\t"\
  91             "pxor      %%mm3, %%mm4 \n\t"\
  92             "pavgb     %%mm3, %%mm5 \n\t"\
  93             "pand     %[pb1], %%mm4 \n\t"\
  94             "psubusb   %%mm4, %%mm5 \n\t"\
  95             "psrlq     $8,    %%mm5 \n\t"\
  96             "punpcklbw %%mm7, %%mm5 \n\t" /* (cur[x-refs+j] + cur[x+refs-j])>>1 */\
  97             "movq      %%mm2, %%mm4 \n\t"\
  98             "psubusb   %%mm3, %%mm2 \n\t"\
  99             "psubusb   %%mm4, %%mm3 \n\t"\
 100             "pmaxub    %%mm3, %%mm2 \n\t"\
 101             "movq      %%mm2, %%mm3 \n\t"\
 102             "movq      %%mm2, %%mm4 \n\t" /* ABS(cur[x-refs-1+j] - cur[x+refs-1-j]) */\
 103             "psrlq      $8,   %%mm3 \n\t" /* ABS(cur[x-refs  +j] - cur[x+refs  -j]) */\
 104             "psrlq     $16,   %%mm4 \n\t" /* ABS(cur[x-refs+1+j] - cur[x+refs+1-j]) */\
 105             "punpcklbw %%mm7, %%mm2 \n\t"\
 106             "punpcklbw %%mm7, %%mm3 \n\t"\
 107             "punpcklbw %%mm7, %%mm4 \n\t"\
 108             "paddw     %%mm3, %%mm2 \n\t"\
 109             "paddw     %%mm4, %%mm2 \n\t" /* score */
 110
 111 #define CHECK1 \
 112             "movq      %%mm0, %%mm3 \n\t"\
 113             "pcmpgtw   %%mm2, %%mm3 \n\t" /* if(score < spatial_score) */\
 114             "pminsw    %%mm2, %%mm0 \n\t" /* spatial_score= score; */\
 115             "movq      %%mm3, %%mm6 \n\t"\
 116             "pand      %%mm3, %%mm5 \n\t"\
 117             "pandn     %%mm1, %%mm3 \n\t"\
 118             "por       %%mm5, %%mm3 \n\t"\
 119             "movq      %%mm3, %%mm1 \n\t" /* spatial_pred= (cur[x-refs+j] + cur[x+refs-j])>>1; */
 120
 121 #define CHECK2 /* pretend not to have checked dir=2 if dir=1 was bad.\
 122                   hurts both quality and speed, but matches the C version. */\
 123             "paddw    %[pw1], %%mm6 \n\t"\
 124             "psllw     $14,   %%mm6 \n\t"\
 125             "paddsw    %%mm6, %%mm2 \n\t"\
 126             "movq      %%mm0, %%mm3 \n\t"\
 127             "pcmpgtw   %%mm2, %%mm3 \n\t"\
 128             "pminsw    %%mm2, %%mm0 \n\t"\
 129             "pand      %%mm3, %%mm5 \n\t"\
 130             "pandn     %%mm1, %%mm3 \n\t"\
 131             "por       %%mm5, %%mm3 \n\t"\
 132             "movq      %%mm3, %%mm1 \n\t"
 133
 134 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){
 135     static const uint64_t pw_1 = 0x0001000100010001ULL;
 136     static const uint64_t pb_1 = 0x0101010101010101ULL;
 137     const int mode = p->mode;
 138     uint64_t tmp0, tmp1, tmp2, tmp3;
 139     int x;
 140
 141 #define FILTER\
 142     for(x=0; x<w; x+=4){\
 143         asm volatile(\
 144             "pxor      %%mm7, %%mm7 \n\t"\
 145             LOAD4("(%[cur],%[mrefs])", %%mm0) /* c = cur[x-refs] */\
 146             LOAD4("(%[cur],%[prefs])", %%mm1) /* e = cur[x+refs] */\
 147             LOAD4("(%["prev2"])", %%mm2) /* prev2[x] */\
 148             LOAD4("(%["next2"])", %%mm3) /* next2[x] */\
 149             "movq      %%mm3, %%mm4 \n\t"\
 150             "paddw     %%mm2, %%mm3 \n\t"\
 151             "psraw     $1,    %%mm3 \n\t" /* d = (prev2[x] + next2[x])>>1 */\
 152             "movq      %%mm0, %[tmp0] \n\t" /* c */\
 153             "movq      %%mm3, %[tmp1] \n\t" /* d */\
 154             "movq      %%mm1, %[tmp2] \n\t" /* e */\
 155             "psubw     %%mm4, %%mm2 \n\t"\
 156             PABS(      %%mm4, %%mm2) /* temporal_diff0 */\
 157             LOAD4("(%[prev],%[mrefs])", %%mm3) /* prev[x-refs] */\
 158             LOAD4("(%[prev],%[prefs])", %%mm4) /* prev[x+refs] */\
 159             "psubw     %%mm0, %%mm3 \n\t"\
 160             "psubw     %%mm1, %%mm4 \n\t"\
 161             PABS(      %%mm5, %%mm3)\
 162             PABS(      %%mm5, %%mm4)\
 163             "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff1 */\
 164             "psrlw     $1,    %%mm2 \n\t"\
 165             "psrlw     $1,    %%mm3 \n\t"\
 166             "pmaxsw    %%mm3, %%mm2 \n\t"\
 167             LOAD4("(%[next],%[mrefs])", %%mm3) /* next[x-refs] */\
 168             LOAD4("(%[next],%[prefs])", %%mm4) /* next[x+refs] */\
 169             "psubw     %%mm0, %%mm3 \n\t"\
 170             "psubw     %%mm1, %%mm4 \n\t"\
 171             PABS(      %%mm5, %%mm3)\
 172             PABS(      %%mm5, %%mm4)\
 173             "paddw     %%mm4, %%mm3 \n\t" /* temporal_diff2 */\
 174             "psrlw     $1,    %%mm3 \n\t"\
 175             "pmaxsw    %%mm3, %%mm2 \n\t"\
 176             "movq      %%mm2, %[tmp3] \n\t" /* diff */\
 177 \
 178             "paddw     %%mm0, %%mm1 \n\t"\
 179             "paddw     %%mm0, %%mm0 \n\t"\
 180             "psubw     %%mm1, %%mm0 \n\t"\
 181             "psrlw     $1,    %%mm1 \n\t" /* spatial_pred */\
 182             PABS(      %%mm2, %%mm0)      /* ABS(c-e) */\
 183 \
 184             "movq -1(%[cur],%[mrefs]), %%mm2 \n\t" /* cur[x-refs-1] */\
 185             "movq -1(%[cur],%[prefs]), %%mm3 \n\t" /* cur[x+refs-1] */\
 186             "movq      %%mm2, %%mm4 \n\t"\
 187             "psubusb   %%mm3, %%mm2 \n\t"\
 188             "psubusb   %%mm4, %%mm3 \n\t"\
 189             "pmaxub    %%mm3, %%mm2 \n\t"\
 190             "pshufw $9,%%mm2, %%mm3 \n\t"\
 191             "punpcklbw %%mm7, %%mm2 \n\t" /* ABS(cur[x-refs-1] - cur[x+refs-1]) */\
 192             "punpcklbw %%mm7, %%mm3 \n\t" /* ABS(cur[x-refs+1] - cur[x+refs+1]) */\
 193             "paddw     %%mm2, %%mm0 \n\t"\
 194             "paddw     %%mm3, %%mm0 \n\t"\
 195             "psubw    %[pw1], %%mm0 \n\t" /* spatial_score */\
 196 \
 197             CHECK(-2,0)\
 198             CHECK1\
 199             CHECK(-3,1)\
 200             CHECK2\
 201             CHECK(0,-2)\
 202             CHECK1\
 203             CHECK(1,-3)\
 204             CHECK2\
 205 \
 206             /* if(p->mode<2) ... */\
 207             "movq    %[tmp3], %%mm6 \n\t" /* diff */\
 208             "cmp       $2, %[mode] \n\t"\
 209             "jge       1f \n\t"\
 210             LOAD4("(%["prev2"],%[mrefs],2)", %%mm2) /* prev2[x-2*refs] */\
 211             LOAD4("(%["next2"],%[mrefs],2)", %%mm4) /* next2[x-2*refs] */\
 212             LOAD4("(%["prev2"],%[prefs],2)", %%mm3) /* prev2[x+2*refs] */\
 213             LOAD4("(%["next2"],%[prefs],2)", %%mm5) /* next2[x+2*refs] */\
 214             "paddw     %%mm4, %%mm2 \n\t"\
 215             "paddw     %%mm5, %%mm3 \n\t"\
 216             "psrlw     $1,    %%mm2 \n\t" /* b */\
 217             "psrlw     $1,    %%mm3 \n\t" /* f */\
 218             "movq    %[tmp0], %%mm4 \n\t" /* c */\
 219             "movq    %[tmp1], %%mm5 \n\t" /* d */\
 220             "movq    %[tmp2], %%mm7 \n\t" /* e */\
 221             "psubw     %%mm4, %%mm2 \n\t" /* b-c */\
 222             "psubw     %%mm7, %%mm3 \n\t" /* f-e */\
 223             "movq      %%mm5, %%mm0 \n\t"\
 224             "psubw     %%mm4, %%mm5 \n\t" /* d-c */\
 225             "psubw     %%mm7, %%mm0 \n\t" /* d-e */\
 226             "movq      %%mm2, %%mm4 \n\t"\
 227             "pminsw    %%mm3, %%mm2 \n\t"\
 228             "pmaxsw    %%mm4, %%mm3 \n\t"\
 229             "pmaxsw    %%mm5, %%mm2 \n\t"\
 230             "pminsw    %%mm5, %%mm3 \n\t"\
 231             "pmaxsw    %%mm0, %%mm2 \n\t" /* max */\
 232             "pminsw    %%mm0, %%mm3 \n\t" /* min */\
 233             "pxor      %%mm4, %%mm4 \n\t"\
 234             "pmaxsw    %%mm3, %%mm6 \n\t"\
 235             "psubw     %%mm2, %%mm4 \n\t" /* -max */\
 236             "pmaxsw    %%mm4, %%mm6 \n\t" /* diff= MAX3(diff, min, -max); */\
 237             "1: \n\t"\
 238 \
 239             "movq    %[tmp1], %%mm2 \n\t" /* d */\
 240             "movq      %%mm2, %%mm3 \n\t"\
 241             "psubw     %%mm6, %%mm2 \n\t" /* d-diff */\
 242             "paddw     %%mm6, %%mm3 \n\t" /* d+diff */\
 243             "pmaxsw    %%mm2, %%mm1 \n\t"\
 244             "pminsw    %%mm3, %%mm1 \n\t" /* d = clip(spatial_pred, d-diff, d+diff); */\
 245             "packuswb  %%mm1, %%mm1 \n\t"\
 246 \
 247             :[tmp0]"=m"(tmp0),\
 248              [tmp1]"=m"(tmp1),\
 249              [tmp2]"=m"(tmp2),\
 250              [tmp3]"=m"(tmp3)\
 251             :[prev] "r"(prev),\
 252              [cur]  "r"(cur),\
 253              [next] "r"(next),\
 254              [prefs]"r"((long)refs),\
 255              [mrefs]"r"((long)-refs),\
 256              [pw1]  "m"(pw_1),\
 257              [pb1]  "m"(pb_1),\
 258              [mode] "g"(mode)\
 259         );\
 260         asm volatile("movd %%mm1, %0" :"=m"(*dst));\
 261         dst += 4;\
 262         prev+= 4;\
 263         cur += 4;\
 264         next+= 4;\
 265     }
 266
 267     if(parity){
 268 #define prev2 "prev"
 269 #define next2 "cur"
 270         FILTER
 271 #undef prev2
 272 #undef next2
 273     }else{
 274 #define prev2 "cur"
 275 #define next2 "next"
 276         FILTER
 277 #undef prev2
 278 #undef next2
 279     }
 280 }
 281 #undef LOAD4
 282 #undef PABS
 283 #undef CHECK
 284 #undef CHECK1
 285 #undef CHECK2
 286 #undef FILTER
 287
 288 #endif /* defined(HAVE_MMX) && defined(NAMED_ASM_ARGS) */
 289
 290 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){
 291     int x;
 292     uint8_t *prev2= parity ? prev : cur ;
 293     uint8_t *next2= parity ? cur  : next;
 294     for(x=0; x<w; x++){
 295         int c= cur[-refs];
 296         int d= (prev2[0] + next2[0])>>1;
 297         int e= cur[+refs];
 298         int temporal_diff0= ABS(prev2[0] - next2[0]);
 299         int temporal_diff1=( ABS(prev[-refs] - c) + ABS(prev[+refs] - e) )>>1;
 300         int temporal_diff2=( ABS(next[-refs] - c) + ABS(next[+refs] - e) )>>1;
 301         int diff= MAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
 302         int spatial_pred= (c+e)>>1;
 303         int spatial_score= ABS(cur[-refs-1] - cur[+refs-1]) + ABS(c-e)
 304                          + ABS(cur[-refs+1] - cur[+refs+1]) - 1;
 305
 306 #define CHECK(j)\
 307     {   int score= ABS(cur[-refs-1+j] - cur[+refs-1-j])\
 308                  + ABS(cur[-refs  +j] - cur[+refs  -j])\
 309                  + ABS(cur[-refs+1+j] - cur[+refs+1-j]);\
 310         if(score < spatial_score){\
 311             spatial_score= score;\
 312             spatial_pred= (cur[-refs  +j] + cur[+refs  -j])>>1;\
 313
 314         CHECK(-1) CHECK(-2) }} }}
 315         CHECK( 1) CHECK( 2) }} }}
 316
 317         if(p->mode<2){
 318             int b= (prev2[-2*refs] + next2[-2*refs])>>1;
 319             int f= (prev2[+2*refs] + next2[+2*refs])>>1;
 320 #if 0
 321             int a= cur[-3*refs];
 322             int g= cur[+3*refs];
 323             int max= MAX3(d-e, d-c, MIN3(MAX(b-c,f-e),MAX(b-c,b-a),MAX(f-g,f-e)) );
 324             int min= MIN3(d-e, d-c, MAX3(MIN(b-c,f-e),MIN(b-c,b-a),MIN(f-g,f-e)) );
 325 #else
 326             int max= MAX3(d-e, d-c, MIN(b-c, f-e));
 327             int min= MIN3(d-e, d-c, MAX(b-c, f-e));
 328 #endif
 329
 330             diff= MAX3(diff, min, -max);
 331         }
 332
 333         if(spatial_pred > d + diff)
 334            spatial_pred = d + diff;
 335         else if(spatial_pred < d - diff)
 336            spatial_pred = d - diff;
 337
 338         dst[0] = spatial_pred;
 339
 340         dst++;
 341         cur++;
 342         prev++;
 343         next++;
 344         prev2++;
 345         next2++;
 346     }
 347 }
 348
 349 static void filter(struct vf_priv_s *p, uint8_t *dst[3], int dst_stride[3], int width, int height, int parity, int tff){
 350     int y, i;
 351
 352     for(i=0; i<3; i++){
 353         int is_chroma= !!i;
 354         int w= width >>is_chroma;
 355         int h= height>>is_chroma;
 356         int refs= p->stride[i];
 357
 358         for(y=0; y<h; y++){
 359             if((y ^ parity) & 1){
 360                 uint8_t *prev= &p->ref[0][i][y*refs];
 361                 uint8_t *cur = &p->ref[1][i][y*refs];
 362                 uint8_t *next= &p->ref[2][i][y*refs];
 363                 uint8_t *dst2= &dst[i][y*dst_stride[i]];
 364                 filter_line(p, dst2, prev, cur, next, w, refs, parity ^ tff);
 365             }else{
 366                 fast_memcpy(&dst[i][y*dst_stride[i]], &p->ref[1][i][y*refs], w);
 367             }
 368         }
 369     }
 370 #if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
 371     if(gCpuCaps.hasMMX2) asm volatile("emms \n\t" : : : "memory");
 372 #endif
 373 }
 374
 375 static int config(struct vf_instance_s* vf,
 376         int width, int height, int d_width, int d_height,
 377         unsigned int flags, unsigned int outfmt){
 378         int i, j;
 379
 380         for(i=0; i<3; i++){
 381             int is_chroma= !!i;
 382             int w= ((width   + 31) & (~31))>>is_chroma;
 383             int h= ((height+6+ 31) & (~31))>>is_chroma;
 384
 385             vf->priv->stride[i]= w;
 386             for(j=0; j<3; j++)
 387                 vf->priv->ref[j][i]= malloc(w*h*sizeof(uint8_t))+3*w;
 388         }
 389
 390         return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 391 }
 392
 393 static int continue_buffered_image(struct vf_instance_s *vf);
 394 extern int correct_pts;
 395
 396 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
 397     int tff;
 398
 399     if(vf->priv->parity < 0) {
 400         if (mpi->fields & MP_IMGFIELD_ORDERED)
 401             tff = !!(mpi->fields & MP_IMGFIELD_TOP_FIRST);
 402         else
 403             tff = 1;
 404     }
 405     else tff = (vf->priv->parity&1)^1;
 406
 407     store_ref(vf->priv, mpi->planes, mpi->stride, mpi->w, mpi->h);
 408
 409     vf->priv->buffered_mpi = mpi;
 410     vf->priv->buffered_tff = tff;
 411     vf->priv->buffered_i = 0;
 412     vf->priv->buffered_pts = pts;
 413
 414     if(vf->priv->do_deinterlace == 0)
 415         return vf_next_put_image(vf, mpi, pts);
 416     else if(vf->priv->do_deinterlace == 1){
 417         vf->priv->do_deinterlace= 2;
 418         return 0;
 419     }else
 420         return continue_buffered_image(vf);
 421 }
 422
 423 static int continue_buffered_image(struct vf_instance_s *vf)
 424 {
 425     mp_image_t *mpi = vf->priv->buffered_mpi;
 426     int tff = vf->priv->buffered_tff;
 427     double pts = vf->priv->buffered_pts;
 428     int i;
 429     int ret=0;
 430     mp_image_t *dmpi;
 431
 432     pts += vf->priv->buffered_i * .02; // XXX not right
 433
 434     for(i = vf->priv->buffered_i; i<=(vf->priv->mode&1); i++){
 435         dmpi=vf_get_image(vf->next,mpi->imgfmt,
 436             MP_IMGTYPE_TEMP,
 437             MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
 438             mpi->width,mpi->height);
 439         vf_clone_mpi_attributes(dmpi, mpi);
 440         filter(vf->priv, dmpi->planes, dmpi->stride, mpi->w, mpi->h, i ^ tff ^ 1, tff);
 441         if (correct_pts && i < (vf->priv->mode & 1))
 442             vf_queue_frame(vf, continue_buffered_image);
 443         ret |= vf_next_put_image(vf, dmpi, pts /*FIXME*/);
 444         if (correct_pts)
 445             break;
 446         if(i<(vf->priv->mode&1))
 447             vf_next_control(vf, VFCTRL_FLIP_PAGE, NULL);
 448     }
 449     vf->priv->buffered_i = 1;
 450     return ret;
 451 }
 452
 453 static void uninit(struct vf_instance_s* vf){
 454     int i;
 455     if(!vf->priv) return;
 456
 457     for(i=0; i<3*3; i++){
 458         uint8_t **p= &vf->priv->ref[i%3][i/3];
 459         if(*p) free(*p - 3*vf->priv->stride[i/3]);
 460         *p= NULL;
 461     }
 462     free(vf->priv);
 463     vf->priv=NULL;
 464 }
 465
 466 //===========================================================================//
 467 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
 468     switch(fmt){
 469         case IMGFMT_YV12:
 470         case IMGFMT_I420:
 471         case IMGFMT_IYUV:
 472         case IMGFMT_Y800:
 473         case IMGFMT_Y8:
 474             return vf_next_query_format(vf,fmt);
 475     }
 476     return 0;
 477 }
 478
 479 static int control(struct vf_instance_s* vf, int request, void* data){
 480     switch (request){
 481       case VFCTRL_GET_DEINTERLACE:
 482         *(int*)data = vf->priv->do_deinterlace;
 483         return CONTROL_OK;
 484       case VFCTRL_SET_DEINTERLACE:
 485         vf->priv->do_deinterlace = 2*!!*(int*)data;
 486         return CONTROL_OK;
 487     }
 488     return vf_next_control (vf, request, data);
 489 }
 490
 491 static int open(vf_instance_t *vf, char* args){
 492
 493     vf->config=config;
 494     vf->put_image=put_image;
 495     vf->query_format=query_format;
 496     vf->uninit=uninit;
 497     vf->priv=malloc(sizeof(struct vf_priv_s));
 498     vf->control=control;
 499     memset(vf->priv, 0, sizeof(struct vf_priv_s));
 500
 501     vf->priv->mode=0;
 502     vf->priv->parity= -1;
 503     vf->priv->do_deinterlace=1;
 504
 505     if (args) sscanf(args, "%d:%d", &vf->priv->mode, &vf->priv->parity);
 506
 507     filter_line = filter_line_c;
 508 #if defined(HAVE_MMX) && defined(NAMED_ASM_ARGS)
 509     if(gCpuCaps.hasMMX2) filter_line = filter_line_mmx2;
 510 #endif
 511
 512     return 1;
 513 }
 514
 515 const vf_info_t vf_info_yadif = {
 516     "Yet Another DeInterlacing Filter",
 517     "yadif",
 518     "Michael Niedermayer",
 519     "",
 520     open,
 521     NULL
 522 };