libmpcodecs/vf.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer 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  * MPlayer 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 along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <assert.h>
  23
  24 #include "config.h"
  25 #if HAVE_MALLOC_H
  26 #include <malloc.h>
  27 #endif
  28
  29 #include "mp_msg.h"
  30 #include "m_option.h"
  31 #include "m_struct.h"
  32
  33
  34 #include "img_format.h"
  35 #include "mp_image.h"
  36 #include "vf.h"
  37
  38 #include "libvo/fastmemcpy.h"
  39 #include "libavutil/mem.h"
  40
  41 extern const vf_info_t vf_info_vo;
  42 extern const vf_info_t vf_info_rectangle;
  43 extern const vf_info_t vf_info_bmovl;
  44 extern const vf_info_t vf_info_crop;
  45 extern const vf_info_t vf_info_expand;
  46 extern const vf_info_t vf_info_pp;
  47 extern const vf_info_t vf_info_scale;
  48 extern const vf_info_t vf_info_format;
  49 extern const vf_info_t vf_info_noformat;
  50 extern const vf_info_t vf_info_flip;
  51 extern const vf_info_t vf_info_rotate;
  52 extern const vf_info_t vf_info_mirror;
  53 extern const vf_info_t vf_info_palette;
  54 extern const vf_info_t vf_info_lavc;
  55 extern const vf_info_t vf_info_dvbscale;
  56 extern const vf_info_t vf_info_cropdetect;
  57 extern const vf_info_t vf_info_test;
  58 extern const vf_info_t vf_info_noise;
  59 extern const vf_info_t vf_info_yvu9;
  60 extern const vf_info_t vf_info_lavcdeint;
  61 extern const vf_info_t vf_info_eq;
  62 extern const vf_info_t vf_info_eq2;
  63 extern const vf_info_t vf_info_gradfun;
  64 extern const vf_info_t vf_info_halfpack;
  65 extern const vf_info_t vf_info_dint;
  66 extern const vf_info_t vf_info_1bpp;
  67 extern const vf_info_t vf_info_2xsai;
  68 extern const vf_info_t vf_info_unsharp;
  69 extern const vf_info_t vf_info_swapuv;
  70 extern const vf_info_t vf_info_il;
  71 extern const vf_info_t vf_info_fil;
  72 extern const vf_info_t vf_info_boxblur;
  73 extern const vf_info_t vf_info_sab;
  74 extern const vf_info_t vf_info_smartblur;
  75 extern const vf_info_t vf_info_perspective;
  76 extern const vf_info_t vf_info_down3dright;
  77 extern const vf_info_t vf_info_field;
  78 extern const vf_info_t vf_info_denoise3d;
  79 extern const vf_info_t vf_info_hqdn3d;
  80 extern const vf_info_t vf_info_detc;
  81 extern const vf_info_t vf_info_telecine;
  82 extern const vf_info_t vf_info_tinterlace;
  83 extern const vf_info_t vf_info_tfields;
  84 extern const vf_info_t vf_info_ivtc;
  85 extern const vf_info_t vf_info_ilpack;
  86 extern const vf_info_t vf_info_dsize;
  87 extern const vf_info_t vf_info_decimate;
  88 extern const vf_info_t vf_info_softpulldown;
  89 extern const vf_info_t vf_info_pullup;
  90 extern const vf_info_t vf_info_filmdint;
  91 extern const vf_info_t vf_info_framestep;
  92 extern const vf_info_t vf_info_tile;
  93 extern const vf_info_t vf_info_delogo;
  94 extern const vf_info_t vf_info_remove_logo;
  95 extern const vf_info_t vf_info_hue;
  96 extern const vf_info_t vf_info_spp;
  97 extern const vf_info_t vf_info_uspp;
  98 extern const vf_info_t vf_info_fspp;
  99 extern const vf_info_t vf_info_pp7;
 100 extern const vf_info_t vf_info_yuvcsp;
 101 extern const vf_info_t vf_info_kerndeint;
 102 extern const vf_info_t vf_info_rgbtest;
 103 extern const vf_info_t vf_info_qp;
 104 extern const vf_info_t vf_info_phase;
 105 extern const vf_info_t vf_info_divtc;
 106 extern const vf_info_t vf_info_harddup;
 107 extern const vf_info_t vf_info_softskip;
 108 extern const vf_info_t vf_info_screenshot;
 109 extern const vf_info_t vf_info_ass;
 110 extern const vf_info_t vf_info_mcdeint;
 111 extern const vf_info_t vf_info_yadif;
 112 extern const vf_info_t vf_info_blackframe;
 113 extern const vf_info_t vf_info_geq;
 114 extern const vf_info_t vf_info_ow;
 115 extern const vf_info_t vf_info_fixpts;
 116 extern const vf_info_t vf_info_stereo3d;
 117
 118 // list of available filters:
 119 static const vf_info_t* const filter_list[]={
 120     &vf_info_rectangle,
 121 #ifdef HAVE_POSIX_SELECT
 122     &vf_info_bmovl,
 123 #endif
 124     &vf_info_crop,
 125     &vf_info_expand,
 126     &vf_info_scale,
 127 //    &vf_info_osd,
 128     &vf_info_vo,
 129     &vf_info_format,
 130     &vf_info_noformat,
 131     &vf_info_flip,
 132     &vf_info_rotate,
 133     &vf_info_mirror,
 134     &vf_info_palette,
 135     &vf_info_pp7,
 136 #ifdef CONFIG_FFMPEG
 137     &vf_info_pp,
 138     &vf_info_lavc,
 139     &vf_info_lavcdeint,
 140     &vf_info_screenshot,
 141     &vf_info_uspp,
 142 #endif
 143     &vf_info_dvbscale,
 144     &vf_info_cropdetect,
 145     &vf_info_test,
 146     &vf_info_noise,
 147     &vf_info_yvu9,
 148     &vf_info_eq,
 149     &vf_info_eq2,
 150     &vf_info_gradfun,
 151     &vf_info_halfpack,
 152     &vf_info_dint,
 153     &vf_info_1bpp,
 154     &vf_info_2xsai,
 155     &vf_info_unsharp,
 156     &vf_info_swapuv,
 157     &vf_info_il,
 158     &vf_info_fil,
 159     &vf_info_boxblur,
 160     &vf_info_sab,
 161     &vf_info_smartblur,
 162     &vf_info_perspective,
 163     &vf_info_down3dright,
 164     &vf_info_field,
 165     &vf_info_denoise3d,
 166     &vf_info_hqdn3d,
 167     &vf_info_detc,
 168     &vf_info_telecine,
 169     &vf_info_tinterlace,
 170     &vf_info_tfields,
 171     &vf_info_ivtc,
 172     &vf_info_ilpack,
 173     &vf_info_dsize,
 174     &vf_info_decimate,
 175     &vf_info_softpulldown,
 176     &vf_info_pullup,
 177     &vf_info_filmdint,
 178     &vf_info_framestep,
 179     &vf_info_tile,
 180     &vf_info_delogo,
 181     &vf_info_remove_logo,
 182     &vf_info_hue,
 183 #ifdef CONFIG_FFMPEG_INTERNALS
 184     &vf_info_spp,
 185     &vf_info_fspp,
 186     &vf_info_mcdeint,
 187 #endif
 188 #ifdef CONFIG_FFMPEG_EVAL_API
 189     &vf_info_geq,
 190     &vf_info_qp,
 191 #endif
 192     &vf_info_yuvcsp,
 193     &vf_info_kerndeint,
 194     &vf_info_rgbtest,
 195     &vf_info_phase,
 196     &vf_info_divtc,
 197     &vf_info_harddup,
 198     &vf_info_softskip,
 199 #ifdef CONFIG_ASS
 200     &vf_info_ass,
 201 #endif
 202     &vf_info_yadif,
 203     &vf_info_blackframe,
 204     &vf_info_ow,
 205     &vf_info_fixpts,
 206     &vf_info_stereo3d,
 207     NULL
 208 };
 209
 210 // For the vf option
 211 const m_obj_list_t vf_obj_list = {
 212   (void**)filter_list,
 213   M_ST_OFF(vf_info_t,name),
 214   M_ST_OFF(vf_info_t,info),
 215   M_ST_OFF(vf_info_t,opts)
 216 };
 217
 218 //============================================================================
 219 // mpi stuff:
 220
 221 void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h){
 222     int y;
 223     if(mpi->flags&MP_IMGFLAG_PLANAR){
 224         y0&=~1;h+=h&1;
 225         if(x0==0 && w==mpi->width){
 226             // full width clear:
 227             memset(mpi->planes[0]+mpi->stride[0]*y0,0,mpi->stride[0]*h);
 228             memset(mpi->planes[1]+mpi->stride[1]*(y0>>mpi->chroma_y_shift),128,mpi->stride[1]*(h>>mpi->chroma_y_shift));
 229             memset(mpi->planes[2]+mpi->stride[2]*(y0>>mpi->chroma_y_shift),128,mpi->stride[2]*(h>>mpi->chroma_y_shift));
 230         } else
 231         for(y=y0;y<y0+h;y+=2){
 232             memset(mpi->planes[0]+x0+mpi->stride[0]*y,0,w);
 233             memset(mpi->planes[0]+x0+mpi->stride[0]*(y+1),0,w);
 234             memset(mpi->planes[1]+(x0>>mpi->chroma_x_shift)+mpi->stride[1]*(y>>mpi->chroma_y_shift),128,(w>>mpi->chroma_x_shift));
 235             memset(mpi->planes[2]+(x0>>mpi->chroma_x_shift)+mpi->stride[2]*(y>>mpi->chroma_y_shift),128,(w>>mpi->chroma_x_shift));
 236         }
 237         return;
 238     }
 239     // packed:
 240     for(y=y0;y<y0+h;y++){
 241         unsigned char* dst=mpi->planes[0]+mpi->stride[0]*y+(mpi->bpp>>3)*x0;
 242         if(mpi->flags&MP_IMGFLAG_YUV){
 243             unsigned int* p=(unsigned int*) dst;
 244             int size=(mpi->bpp>>3)*w/4;
 245             int i;
 246 #if HAVE_BIGENDIAN
 247 #define CLEAR_PACKEDYUV_PATTERN 0x00800080
 248 #define CLEAR_PACKEDYUV_PATTERN_SWAPPED 0x80008000
 249 #else
 250 #define CLEAR_PACKEDYUV_PATTERN 0x80008000
 251 #define CLEAR_PACKEDYUV_PATTERN_SWAPPED 0x00800080
 252 #endif
 253             if(mpi->flags&MP_IMGFLAG_SWAPPED){
 254                 for(i=0;i<size-3;i+=4) p[i]=p[i+1]=p[i+2]=p[i+3]=CLEAR_PACKEDYUV_PATTERN_SWAPPED;
 255                 for(;i<size;i++) p[i]=CLEAR_PACKEDYUV_PATTERN_SWAPPED;
 256             } else {
 257                 for(i=0;i<size-3;i+=4) p[i]=p[i+1]=p[i+2]=p[i+3]=CLEAR_PACKEDYUV_PATTERN;
 258                 for(;i<size;i++) p[i]=CLEAR_PACKEDYUV_PATTERN;
 259             }
 260         } else
 261             memset(dst,0,(mpi->bpp>>3)*w);
 262     }
 263 }
 264
 265 mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h){
 266   mp_image_t* mpi=NULL;
 267   int w2;
 268   int number = mp_imgtype >> 16;
 269
 270   assert(w == -1 || w >= vf->w);
 271   assert(h == -1 || h >= vf->h);
 272   assert(vf->w > 0);
 273   assert(vf->h > 0);
 274
 275 //  fprintf(stderr, "get_image: %d:%d, vf: %d:%d\n", w,h,vf->w,vf->h);
 276
 277   if (w == -1) w = vf->w;
 278   if (h == -1) h = vf->h;
 279
 280   w2=(mp_imgflag&MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE)?((w+15)&(~15)):w;
 281
 282   if(vf->put_image==vf_next_put_image){
 283       // passthru mode, if the filter uses the fallback/default put_image() code
 284       return vf_get_image(vf->next,outfmt,mp_imgtype,mp_imgflag,w,h);
 285   }
 286
 287   // Note: we should call libvo first to check if it supports direct rendering
 288   // and if not, then fallback to software buffers:
 289   switch(mp_imgtype & 0xff){
 290   case MP_IMGTYPE_EXPORT:
 291     if(!vf->imgctx.export_images[0]) vf->imgctx.export_images[0]=new_mp_image(w2,h);
 292     mpi=vf->imgctx.export_images[0];
 293     break;
 294   case MP_IMGTYPE_STATIC:
 295     if(!vf->imgctx.static_images[0]) vf->imgctx.static_images[0]=new_mp_image(w2,h);
 296     mpi=vf->imgctx.static_images[0];
 297     break;
 298   case MP_IMGTYPE_TEMP:
 299     if(!vf->imgctx.temp_images[0]) vf->imgctx.temp_images[0]=new_mp_image(w2,h);
 300     mpi=vf->imgctx.temp_images[0];
 301     break;
 302   case MP_IMGTYPE_IPB:
 303     if(!(mp_imgflag&MP_IMGFLAG_READABLE)){ // B frame:
 304       if(!vf->imgctx.temp_images[0]) vf->imgctx.temp_images[0]=new_mp_image(w2,h);
 305       mpi=vf->imgctx.temp_images[0];
 306       break;
 307     }
 308   case MP_IMGTYPE_IP:
 309     if(!vf->imgctx.static_images[vf->imgctx.static_idx]) vf->imgctx.static_images[vf->imgctx.static_idx]=new_mp_image(w2,h);
 310     mpi=vf->imgctx.static_images[vf->imgctx.static_idx];
 311     vf->imgctx.static_idx^=1;
 312     break;
 313   case MP_IMGTYPE_NUMBERED:
 314     if (number == -1) {
 315       int i;
 316       for (i = 0; i < NUM_NUMBERED_MPI; i++)
 317         if (!vf->imgctx.numbered_images[i] || !vf->imgctx.numbered_images[i]->usage_count)
 318           break;
 319       number = i;
 320     }
 321     if (number < 0 || number >= NUM_NUMBERED_MPI) return NULL;
 322     if (!vf->imgctx.numbered_images[number]) vf->imgctx.numbered_images[number] = new_mp_image(w2,h);
 323     mpi = vf->imgctx.numbered_images[number];
 324     mpi->number = number;
 325     break;
 326   }
 327   if(mpi){
 328     mpi->type=mp_imgtype;
 329     mpi->w=vf->w; mpi->h=vf->h;
 330     // keep buffer allocation status & color flags only:
 331 //    mpi->flags&=~(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE|MP_IMGFLAG_DIRECT);
 332     mpi->flags&=MP_IMGFLAG_ALLOCATED|MP_IMGFLAG_TYPE_DISPLAYED|MP_IMGFLAGMASK_COLORS;
 333     // accept restrictions, draw_slice and palette flags only:
 334     mpi->flags|=mp_imgflag&(MP_IMGFLAGMASK_RESTRICTIONS|MP_IMGFLAG_DRAW_CALLBACK|MP_IMGFLAG_RGB_PALETTE);
 335     if(!vf->draw_slice) mpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
 336     if(mpi->width!=w2 || mpi->height!=h){
 337 //      printf("vf.c: MPI parameters changed!  %dx%d -> %dx%d   \n", mpi->width,mpi->height,w2,h);
 338         if(mpi->flags&MP_IMGFLAG_ALLOCATED){
 339             if(mpi->width<w2 || mpi->height<h){
 340                 // need to re-allocate buffer memory:
 341                 av_free(mpi->planes[0]);
 342                 mpi->flags&=~MP_IMGFLAG_ALLOCATED;
 343                 mp_msg(MSGT_VFILTER,MSGL_V,"vf.c: have to REALLOCATE buffer memory :(\n");
 344             }
 345 //      } else {
 346         } {
 347             mpi->width=w2; mpi->chroma_width=(w2 + (1<<mpi->chroma_x_shift) - 1)>>mpi->chroma_x_shift;
 348             mpi->height=h; mpi->chroma_height=(h + (1<<mpi->chroma_y_shift) - 1)>>mpi->chroma_y_shift;
 349         }
 350     }
 351     if(!mpi->bpp) mp_image_setfmt(mpi,outfmt);
 352     if(!(mpi->flags&MP_IMGFLAG_ALLOCATED) && mpi->type>MP_IMGTYPE_EXPORT){
 353
 354         // check libvo first!
 355         if(vf->get_image) vf->get_image(vf,mpi);
 356
 357         if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
 358           // non-direct and not yet allocated image. allocate it!
 359           if (!mpi->bpp) { // no way we can allocate this
 360               mp_msg(MSGT_DECVIDEO, MSGL_FATAL,
 361                      "vf_get_image: Tried to allocate a format that can not be allocated!\n");
 362               return NULL;
 363           }
 364
 365           // check if codec prefer aligned stride:
 366           if(mp_imgflag&MP_IMGFLAG_PREFER_ALIGNED_STRIDE){
 367               int align=(mpi->flags&MP_IMGFLAG_PLANAR &&
 368                          mpi->flags&MP_IMGFLAG_YUV) ?
 369                          (8<<mpi->chroma_x_shift)-1 : 15; // -- maybe FIXME
 370               w2=((w+align)&(~align));
 371               if(mpi->width!=w2){
 372                   // we have to change width... check if we CAN co it:
 373                   int flags=vf->query_format(vf,outfmt); // should not fail
 374                   if(!(flags&3)) mp_msg(MSGT_DECVIDEO,MSGL_WARN,"??? vf_get_image{vf->query_format(outfmt)} failed!\n");
 375 //                printf("query -> 0x%X    \n",flags);
 376                   if(flags&VFCAP_ACCEPT_STRIDE){
 377                       mpi->width=w2;
 378                       mpi->chroma_width=(w2 + (1<<mpi->chroma_x_shift) - 1)>>mpi->chroma_x_shift;
 379                   }
 380               }
 381           }
 382
 383           mp_image_alloc_planes(mpi);
 384 //        printf("clearing img!\n");
 385           vf_mpi_clear(mpi,0,0,mpi->width,mpi->height);
 386         }
 387     }
 388     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 389         if(vf->start_slice) vf->start_slice(vf,mpi);
 390     if(!(mpi->flags&MP_IMGFLAG_TYPE_DISPLAYED)){
 391             mp_msg(MSGT_DECVIDEO,MSGL_V,"*** [%s] %s%s mp_image_t, %dx%dx%dbpp %s %s, %d bytes\n",
 392                   vf->info->name,
 393                   (mpi->type==MP_IMGTYPE_EXPORT)?"Exporting":
 394                   ((mpi->flags&MP_IMGFLAG_DIRECT)?"Direct Rendering":"Allocating"),
 395                   (mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)?" (slices)":"",
 396                   mpi->width,mpi->height,mpi->bpp,
 397                   (mpi->flags&MP_IMGFLAG_YUV)?"YUV":((mpi->flags&MP_IMGFLAG_SWAPPED)?"BGR":"RGB"),
 398                   (mpi->flags&MP_IMGFLAG_PLANAR)?"planar":"packed",
 399                   mpi->bpp*mpi->width*mpi->height/8);
 400             mp_msg(MSGT_DECVIDEO,MSGL_DBG2,"(imgfmt: %x, planes: %p,%p,%p strides: %d,%d,%d, chroma: %dx%d, shift: h:%d,v:%d)\n",
 401                 mpi->imgfmt, mpi->planes[0], mpi->planes[1], mpi->planes[2],
 402                 mpi->stride[0], mpi->stride[1], mpi->stride[2],
 403                 mpi->chroma_width, mpi->chroma_height, mpi->chroma_x_shift, mpi->chroma_y_shift);
 404             mpi->flags|=MP_IMGFLAG_TYPE_DISPLAYED;
 405     }
 406
 407   mpi->qscale = NULL;
 408   }
 409   mpi->usage_count++;
 410 //    printf("\rVF_MPI: %p %p %p %d %d %d    \n",
 411 //      mpi->planes[0],mpi->planes[1],mpi->planes[2],
 412 //      mpi->stride[0],mpi->stride[1],mpi->stride[2]);
 413   return mpi;
 414 }
 415
 416 //============================================================================
 417
 418 // By default vf doesn't accept MPEGPES
 419 static int vf_default_query_format(struct vf_instance *vf, unsigned int fmt){
 420   if(fmt == IMGFMT_MPEGPES) return 0;
 421   return vf_next_query_format(vf,fmt);
 422 }
 423
 424 struct vf_instance *vf_open_plugin_noerr(struct MPOpts *opts,
 425                                          const vf_info_t * const *filter_list,
 426                                          vf_instance_t *next, const char *name,
 427                                          char **args, int *retcode)
 428 {
 429     vf_instance_t* vf;
 430     int i;
 431     for(i=0;;i++){
 432         if(!filter_list[i]){
 433             mp_tmsg(MSGT_VFILTER,MSGL_ERR,"Couldn't find video filter '%s'.\n",name);
 434             return NULL; // no such filter!
 435         }
 436         if(!strcmp(filter_list[i]->name,name)) break;
 437     }
 438     vf = calloc(1, sizeof *vf);
 439     vf->opts = opts;
 440     vf->info=filter_list[i];
 441     vf->next=next;
 442     vf->config=vf_next_config;
 443     vf->control=vf_next_control;
 444     vf->query_format=vf_default_query_format;
 445     vf->put_image=vf_next_put_image;
 446     vf->default_caps=VFCAP_ACCEPT_STRIDE;
 447     vf->default_reqs=0;
 448     if(vf->info->opts) { // vf_vo get some special argument
 449       const m_struct_t* st = vf->info->opts;
 450       void* vf_priv = m_struct_alloc(st);
 451       int n;
 452       for(n = 0 ; args && args[2*n] ; n++)
 453           m_struct_set(st, vf_priv, args[2*n], bstr(args[2*n+1]));
 454       vf->priv = vf_priv;
 455       args = NULL;
 456     } else // Otherwise we should have the '_oldargs_'
 457       if(args && !strcmp(args[0],"_oldargs_"))
 458         args = (char**)args[1];
 459       else
 460         args = NULL;
 461     *retcode = vf->info->vf_open(vf,(char*)args);
 462     if (*retcode > 0)
 463         return vf;
 464     free(vf);
 465     return NULL;
 466 }
 467
 468 struct vf_instance *vf_open_plugin(struct MPOpts *opts,
 469                                    const vf_info_t * const *filter_list,
 470                                    vf_instance_t *next, const char *name,
 471                                    char **args)
 472 {
 473     struct vf_instance *vf = vf_open_plugin_noerr(opts, filter_list, next,
 474                                                   name, args, &(int){0});
 475     if (!vf)
 476         mp_tmsg(MSGT_VFILTER, MSGL_ERR, "Couldn't open video filter '%s'.\n",
 477                 name);
 478     return vf;
 479 }
 480
 481 vf_instance_t* vf_open_filter(struct MPOpts *opts, vf_instance_t* next, const char *name, char **args){
 482   if(args && strcmp(args[0],"_oldargs_")) {
 483     int i,l = 0;
 484     for(i = 0 ; args && args[2*i] ; i++)
 485       l += 1 + strlen(args[2*i]) + 1 + strlen(args[2*i+1]);
 486     l += strlen(name);
 487     {
 488       char str[l+1];
 489       char* p = str;
 490       p += sprintf(str,"%s",name);
 491       for(i = 0 ; args && args[2*i] ; i++)
 492         p += sprintf(p," %s=%s",args[2*i],args[2*i+1]);
 493       mp_msg(MSGT_VFILTER, MSGL_INFO, "%s[%s]\n",
 494              mp_gtext("Opening video filter: "), str);
 495     }
 496   } else if(strcmp(name,"vo")) {
 497     if(args && strcmp(args[0],"_oldargs_") == 0)
 498         mp_msg(MSGT_VFILTER, MSGL_INFO, "%s[%s=%s]\n",
 499                mp_gtext("Opening video filter: "), name, args[1]);
 500     else
 501         mp_msg(MSGT_VFILTER, MSGL_INFO, "%s[%s]\n",
 502                mp_gtext("Opening video filter: "), name);
 503   }
 504   return vf_open_plugin(opts, filter_list,next,name,args);
 505 }
 506
 507 /**
 508  * \brief adds a filter before the last one (which should be the vo filter).
 509  * \param vf start of the filter chain.
 510  * \param name name of the filter to add.
 511  * \param args argument list for the filter.
 512  * \return pointer to the filter instance that was created.
 513  */
 514 vf_instance_t* vf_add_before_vo(vf_instance_t **vf, char *name, char **args) {
 515   struct MPOpts *opts = (*vf)->opts;
 516   vf_instance_t *vo, *prev = NULL, *new;
 517   // Find the last filter (should be vf_vo)
 518   for (vo = *vf; vo->next; vo = vo->next)
 519     prev = vo;
 520   new = vf_open_filter(opts, vo, name, args);
 521   if (prev)
 522     prev->next = new;
 523   else
 524     *vf = new;
 525   return new;
 526 }
 527
 528 //============================================================================
 529
 530 unsigned int vf_match_csp(vf_instance_t** vfp,const unsigned int* list,unsigned int preferred){
 531     vf_instance_t* vf=*vfp;
 532     struct MPOpts *opts = vf->opts;
 533     const unsigned int* p;
 534     unsigned int best=0;
 535     int ret;
 536     if((p=list)) while(*p){
 537         ret=vf->query_format(vf,*p);
 538         mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
 539         if(ret&2){ best=*p; break;} // no conversion -> bingo!
 540         if(ret&1 && !best) best=*p; // best with conversion
 541         ++p;
 542     }
 543     if(best) return best; // bingo, they have common csp!
 544     // ok, then try with scale:
 545     if(vf->info == &vf_info_scale) return 0; // avoid infinite recursion!
 546     vf=vf_open_filter(opts, vf,"scale",NULL);
 547     if(!vf) return 0; // failed to init "scale"
 548     // try the preferred csp first:
 549     if(preferred && vf->query_format(vf,preferred)) best=preferred; else
 550     // try the list again, now with "scaler" :
 551     if((p=list)) while(*p){
 552         ret=vf->query_format(vf,*p);
 553         mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
 554         if(ret&2){ best=*p; break;} // no conversion -> bingo!
 555         if(ret&1 && !best) best=*p; // best with conversion
 556         ++p;
 557     }
 558     if(best) *vfp=vf; // else uninit vf  !FIXME!
 559     return best;
 560 }
 561
 562 void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src){
 563     dst->pict_type= src->pict_type;
 564     dst->fields = src->fields;
 565     dst->qscale_type= src->qscale_type;
 566     if(dst->width == src->width && dst->height == src->height){
 567         dst->qstride= src->qstride;
 568         dst->qscale= src->qscale;
 569     }
 570 }
 571
 572 void vf_queue_frame(vf_instance_t *vf, int (*func)(vf_instance_t *))
 573 {
 574     vf->continue_buffered_image = func;
 575 }
 576
 577 // Output the next buffered image (if any) from the filter chain.
 578 // The queue could be kept as a simple stack/list instead avoiding the
 579 // looping here, but there's currently no good context variable where
 580 // that could be stored so this was easier to implement.
 581
 582 int vf_output_queued_frame(vf_instance_t *vf)
 583 {
 584     while (1) {
 585         int ret;
 586         vf_instance_t *current;
 587         vf_instance_t *last=NULL;
 588         int (*tmp)(vf_instance_t *);
 589         for (current = vf; current; current = current->next)
 590             if (current->continue_buffered_image)
 591                 last = current;
 592         if (!last)
 593             return 0;
 594         tmp = last->continue_buffered_image;
 595         last->continue_buffered_image = NULL;
 596         ret = tmp(last);
 597         if (ret)
 598             return ret;
 599     }
 600 }
 601
 602
 603 /**
 604  * \brief Video config() function wrapper
 605  *
 606  * Blocks config() calls with different size or format for filters
 607  * with VFCAP_CONSTANT
 608  *
 609  * First call is redirected to vf->config.
 610  *
 611  * In following calls, it verifies that the configuration parameters
 612  * are unchanged, and returns either success or error.
 613  *
 614 */
 615 int vf_config_wrapper(struct vf_instance *vf,
 616                     int width, int height, int d_width, int d_height,
 617                     unsigned int flags, unsigned int outfmt)
 618 {
 619     int r;
 620     if ((vf->default_caps&VFCAP_CONSTANT) && vf->fmt.have_configured) {
 621         if ((vf->fmt.orig_width != width)
 622             || (vf->fmt.orig_height != height)
 623             || (vf->fmt.orig_fmt != outfmt)) {
 624             mp_tmsg(MSGT_VFILTER,MSGL_ERR,"\nNew video file has different resolution or colorspace than the previous one.\n");
 625             return 0;
 626         }
 627         return 1;
 628     }
 629     vf->fmt.have_configured = 1;
 630     vf->fmt.orig_height = height;
 631     vf->fmt.orig_width = width;
 632     vf->fmt.orig_fmt = outfmt;
 633     r = vf->config(vf, width, height, d_width, d_height, flags, outfmt);
 634     if (!r) vf->fmt.have_configured = 0;
 635     return r;
 636 }
 637
 638 int vf_next_config(struct vf_instance *vf,
 639         int width, int height, int d_width, int d_height,
 640         unsigned int voflags, unsigned int outfmt){
 641     struct MPOpts *opts = vf->opts;
 642     int miss;
 643     int flags=vf->next->query_format(vf->next,outfmt);
 644     if(!flags){
 645         // hmm. colorspace mismatch!!!
 646         // let's insert the 'scale' filter, it does the job for us:
 647         vf_instance_t* vf2;
 648         if(vf->next->info==&vf_info_scale) return 0; // scale->scale
 649         vf2=vf_open_filter(opts, vf->next,"scale",NULL);
 650         if(!vf2) return 0; // shouldn't happen!
 651         vf->next=vf2;
 652         flags=vf->next->query_format(vf->next,outfmt);
 653         if(!flags){
 654             mp_tmsg(MSGT_VFILTER,MSGL_ERR,"Cannot find matching colorspace, even by inserting 'scale' :(\n");
 655             return 0; // FAIL
 656         }
 657     }
 658     mp_msg(MSGT_VFILTER,MSGL_V,"REQ: flags=0x%X  req=0x%X  \n",flags,vf->default_reqs);
 659     miss=vf->default_reqs - (flags&vf->default_reqs);
 660     if(miss&VFCAP_ACCEPT_STRIDE){
 661         // vf requires stride support but vf->next doesn't support it!
 662         // let's insert the 'expand' filter, it does the job for us:
 663         vf_instance_t* vf2=vf_open_filter(opts, vf->next,"expand",NULL);
 664         if(!vf2) return 0; // shouldn't happen!
 665         vf->next=vf2;
 666     }
 667     vf->next->w = width; vf->next->h = height;
 668     return vf_config_wrapper(vf->next,width,height,d_width,d_height,voflags,outfmt);
 669 }
 670
 671 int vf_next_control(struct vf_instance *vf, int request, void* data){
 672     return vf->next->control(vf->next,request,data);
 673 }
 674
 675 int vf_next_query_format(struct vf_instance *vf, unsigned int fmt){
 676     int flags=vf->next->query_format(vf->next,fmt);
 677     if(flags) flags|=vf->default_caps;
 678     return flags;
 679 }
 680
 681 int vf_next_put_image(struct vf_instance *vf,mp_image_t *mpi, double pts){
 682     return vf->next->put_image(vf->next,mpi, pts);
 683 }
 684
 685 void vf_next_draw_slice(struct vf_instance *vf,unsigned char** src, int * stride,int w, int h, int x, int y){
 686     if (vf->next->draw_slice) {
 687         vf->next->draw_slice(vf->next,src,stride,w,h,x,y);
 688         return;
 689     }
 690     if (!vf->dmpi) {
 691         mp_msg(MSGT_VFILTER,MSGL_ERR,"draw_slice: dmpi not stored by vf_%s\n", vf->info->name);
 692         return;
 693     }
 694     if (!(vf->dmpi->flags & MP_IMGFLAG_PLANAR)) {
 695         memcpy_pic(vf->dmpi->planes[0]+y*vf->dmpi->stride[0]+vf->dmpi->bpp/8*x,
 696             src[0], vf->dmpi->bpp/8*w, h, vf->dmpi->stride[0], stride[0]);
 697         return;
 698     }
 699     memcpy_pic(vf->dmpi->planes[0]+y*vf->dmpi->stride[0]+x, src[0],
 700         w, h, vf->dmpi->stride[0], stride[0]);
 701     memcpy_pic(vf->dmpi->planes[1]+(y>>vf->dmpi->chroma_y_shift)*vf->dmpi->stride[1]+(x>>vf->dmpi->chroma_x_shift),
 702         src[1], w>>vf->dmpi->chroma_x_shift, h>>vf->dmpi->chroma_y_shift, vf->dmpi->stride[1], stride[1]);
 703     memcpy_pic(vf->dmpi->planes[2]+(y>>vf->dmpi->chroma_y_shift)*vf->dmpi->stride[2]+(x>>vf->dmpi->chroma_x_shift),
 704         src[2], w>>vf->dmpi->chroma_x_shift, h>>vf->dmpi->chroma_y_shift, vf->dmpi->stride[2], stride[2]);
 705 }
 706
 707 //============================================================================
 708
 709 vf_instance_t *append_filters(vf_instance_t* last,
 710                               struct m_obj_settings *vf_settings)
 711 {
 712   struct MPOpts *opts = last->opts;
 713   vf_instance_t* vf;
 714   int i;
 715
 716   if(vf_settings) {
 717     // We want to add them in the 'right order'
 718     for(i = 0 ; vf_settings[i].name ; i++)
 719       /* NOP */;
 720     for(i-- ; i >= 0 ; i--) {
 721       //printf("Open filter %s\n",vf_settings[i].name);
 722       vf = vf_open_filter(opts, last,vf_settings[i].name,vf_settings[i].attribs);
 723       if(vf) last=vf;
 724     }
 725   }
 726   return last;
 727 }
 728
 729 //============================================================================
 730
 731 void vf_uninit_filter(vf_instance_t* vf){
 732     if(vf->uninit) vf->uninit(vf);
 733     free_mp_image(vf->imgctx.static_images[0]);
 734     free_mp_image(vf->imgctx.static_images[1]);
 735     free_mp_image(vf->imgctx.temp_images[0]);
 736     free_mp_image(vf->imgctx.export_images[0]);
 737     for (int i = 0; i < NUM_NUMBERED_MPI; i++)
 738         free_mp_image(vf->imgctx.numbered_images[i]);
 739     free(vf);
 740 }
 741
 742 void vf_uninit_filter_chain(vf_instance_t* vf){
 743     while(vf){
 744         vf_instance_t* next=vf->next;
 745         vf_uninit_filter(vf);
 746         vf=next;
 747     }
 748 }
 749
 750 void vf_detc_init_pts_buf(struct vf_detc_pts_buf *p)
 751 {
 752     p->inpts_prev = MP_NOPTS_VALUE;
 753     p->outpts_prev = MP_NOPTS_VALUE;
 754     p->lastdelta = 0;
 755 }
 756
 757 static double vf_detc_adjust_pts_internal(struct vf_detc_pts_buf *p,
 758                                           double pts, bool reset_pattern,
 759                                           bool skip_frame, double delta,
 760                                           double boundfactor_minus,
 761                                           double increasefactor,
 762                                           double boundfactor_plus)
 763 {
 764     double newpts;
 765
 766     if (pts == MP_NOPTS_VALUE)
 767         return pts;
 768
 769     if (delta <= 0) {
 770         if (p->inpts_prev == MP_NOPTS_VALUE)
 771             delta = 0;
 772         else if(pts == p->inpts_prev)
 773             delta = p->lastdelta;
 774         else
 775             delta = pts - p->inpts_prev;
 776     }
 777     //mp_msg(MSGT_VFILTER, MSGL_INFO, "filmdint: (1) inpts %f (delta: %f, increase: %f)\n", pts, delta, delta * increasefactor);
 778     p->inpts_prev = pts;
 779     p->lastdelta = delta;
 780
 781     if (skip_frame)
 782         return MP_NOPTS_VALUE;
 783
 784     // detect bogus deltas and then passthru pts (possibly caused by seeking, or bad input)
 785     if (p->outpts_prev == MP_NOPTS_VALUE || reset_pattern || delta <= 0.0 || delta >= 0.5) {
 786         newpts = pts;
 787     } else {
 788         // turn 5 frames into 4
 789         newpts = p->outpts_prev + delta * increasefactor;
 790
 791         // bound to input pts in a sensible way; these numbers come because we
 792         // map frames the following way when ivtc'ing:
 793         // 0/30 -> 0/24   diff=0
 794         // 1/30 -> 1/24   diff=1/120
 795         // 2/30 -> -
 796         // 3/30 -> 2/24   diff=-1/60
 797         // 4/30 -> 3/24   diff=-1/120
 798         if (newpts < pts - delta * boundfactor_minus)
 799             newpts = pts - delta * boundfactor_minus;
 800         if (newpts > pts + delta * boundfactor_plus)
 801             newpts = pts + delta * boundfactor_plus;
 802         if (newpts < p->outpts_prev)
 803             newpts = p->outpts_prev; // damage control
 804     }
 805     //mp_msg(MSGT_VFILTER, MSGL_INFO, "filmdint: (2) outpts %f (delta: %f)\n", newpts, newpts - p->outpts_prev);
 806     p->outpts_prev = newpts;
 807
 808     return newpts;
 809 }
 810
 811 double vf_detc_adjust_pts(struct vf_detc_pts_buf *p, double pts,
 812                           bool reset_pattern, bool skip_frame)
 813 {
 814     // standard telecine (see above)
 815     return vf_detc_adjust_pts_internal(p, pts, reset_pattern, skip_frame,
 816                                        0, 0.5, 1.25, 0.25);
 817 }
 818
 819 double vf_softpulldown_adjust_pts(struct vf_detc_pts_buf *p, double pts,
 820                                   bool reset_pattern, bool skip_frame,
 821                                   int last_frame_duration)
 822 {
 823     // for the softpulldown filter we get:
 824     // 0/60 -> 0/30
 825     // 2/60 -> 1/30
 826     // 5/60 -> 2/30
 827     // 7/60 -> 3/30, 4/30
 828     return vf_detc_adjust_pts_internal(p, pts, reset_pattern, skip_frame,
 829                                        0, 1.0 / last_frame_duration,
 830                                        2.0 / last_frame_duration,
 831                                        1.0 / last_frame_duration);
 832 }