libmpcodecs/vf_scale.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <inttypes.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8 #include "cpudetect.h"
   9
  10 #include "img_format.h"
  11 #include "mp_image.h"
  12 #include "vf.h"
  13 #include "fmt-conversion.h"
  14 #include "bswap.h"
  15
  16 #include "libswscale/swscale.h"
  17 #include "vf_scale.h"
  18
  19 #include "m_option.h"
  20 #include "m_struct.h"
  21
  22 static struct vf_priv_s {
  23     int w,h;
  24     int v_chr_drop;
  25     double param[2];
  26     unsigned int fmt;
  27     struct SwsContext *ctx;
  28     struct SwsContext *ctx2; //for interlaced slices only
  29     unsigned char* palette;
  30     int interlaced;
  31     int noup;
  32     int accurate_rnd;
  33     int query_format_cache[64];
  34 } const vf_priv_dflt = {
  35   -1,-1,
  36   0,
  37   {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT},
  38   0,
  39   NULL,
  40   NULL,
  41   NULL
  42 };
  43
  44 extern int opt_screen_size_x;
  45 extern int opt_screen_size_y;
  46 extern float screen_size_xy;
  47
  48 //===========================================================================//
  49
  50 void sws_getFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, SwsFilter **dstFilterParam);
  51
  52 static unsigned int outfmt_list[]={
  53 // YUV:
  54     IMGFMT_444P,
  55     IMGFMT_422P,
  56     IMGFMT_YV12,
  57     IMGFMT_I420,
  58     IMGFMT_IYUV,
  59     IMGFMT_YVU9,
  60     IMGFMT_IF09,
  61     IMGFMT_411P,
  62     IMGFMT_NV12,
  63     IMGFMT_NV21,
  64     IMGFMT_YUY2,
  65     IMGFMT_UYVY,
  66 // RGB and grayscale (Y8 and Y800):
  67     IMGFMT_BGR32,
  68     IMGFMT_RGB32,
  69     IMGFMT_BGR24,
  70     IMGFMT_RGB24,
  71     IMGFMT_BGR16,
  72     IMGFMT_RGB16,
  73     IMGFMT_BGR15,
  74     IMGFMT_RGB15,
  75     IMGFMT_Y800,
  76     IMGFMT_Y8,
  77     IMGFMT_BGR8,
  78     IMGFMT_RGB8,
  79     IMGFMT_BGR4,
  80     IMGFMT_RGB4,
  81     IMGFMT_BG4B,
  82     IMGFMT_RG4B,
  83     IMGFMT_BGR1,
  84     IMGFMT_RGB1,
  85     0
  86 };
  87
  88 static unsigned int find_best_out(vf_instance_t *vf){
  89     unsigned int best=0;
  90     int i;
  91
  92     // find the best outfmt:
  93     for(i=0; i<sizeof(outfmt_list)/sizeof(int)-1; i++){
  94         const int format= outfmt_list[i];
  95         int ret= vf->priv->query_format_cache[i]-1;
  96         if(ret == -1){
  97             ret= vf_next_query_format(vf, outfmt_list[i]);
  98             vf->priv->query_format_cache[i]= ret+1;
  99         }
 100
 101         mp_msg(MSGT_VFILTER,MSGL_DBG2,"scale: query(%s) -> %d\n",vo_format_name(format),ret&3);
 102         if(ret&VFCAP_CSP_SUPPORTED_BY_HW){
 103             best=format; // no conversion -> bingo!
 104             break;
 105         }
 106         if(ret&VFCAP_CSP_SUPPORTED && !best)
 107             best=format; // best with conversion
 108     }
 109     return best;
 110 }
 111
 112 static int config(struct vf_instance_s* vf,
 113         int width, int height, int d_width, int d_height,
 114         unsigned int flags, unsigned int outfmt){
 115     unsigned int best=find_best_out(vf);
 116     int vo_flags;
 117     int int_sws_flags=0;
 118     int round_w=0, round_h=0;
 119     SwsFilter *srcFilter, *dstFilter;
 120     enum PixelFormat dfmt, sfmt;
 121
 122     if(!best){
 123         mp_msg(MSGT_VFILTER,MSGL_WARN,"SwScale: no supported outfmt found :(\n");
 124         return 0;
 125     }
 126     sfmt = imgfmt2pixfmt(outfmt);
 127     if (outfmt == IMGFMT_RGB8 || outfmt == IMGFMT_BGR8) sfmt = PIX_FMT_PAL8;
 128     dfmt = imgfmt2pixfmt(best);
 129
 130     vo_flags=vf->next->query_format(vf->next,best);
 131
 132     // scaling to dwidth*d_height, if all these TRUE:
 133     // - option -zoom
 134     // - no other sw/hw up/down scaling avail.
 135     // - we're after postproc
 136     // - user didn't set w:h
 137     if(!(vo_flags&VFCAP_POSTPROC) && (flags&4) &&
 138             vf->priv->w<0 && vf->priv->h<0){    // -zoom
 139         int x=(vo_flags&VFCAP_SWSCALE) ? 0 : 1;
 140         if(d_width<width || d_height<height){
 141             // downscale!
 142             if(vo_flags&VFCAP_HWSCALE_DOWN) x=0;
 143         } else {
 144             // upscale:
 145             if(vo_flags&VFCAP_HWSCALE_UP) x=0;
 146         }
 147         if(x){
 148             // user wants sw scaling! (-zoom)
 149             vf->priv->w=d_width;
 150             vf->priv->h=d_height;
 151         }
 152     }
 153
 154     if(vf->priv->noup){
 155         if((vf->priv->w > width) + (vf->priv->h > height) >= vf->priv->noup){
 156             vf->priv->w= width;
 157             vf->priv->h= height;
 158         }
 159     }
 160
 161     if (vf->priv->w <= -8) {
 162       vf->priv->w += 8;
 163       round_w = 1;
 164     }
 165     if (vf->priv->h <= -8) {
 166       vf->priv->h += 8;
 167       round_h = 1;
 168     }
 169
 170     if (vf->priv->w < -3 || vf->priv->h < -3 ||
 171          (vf->priv->w < -1 && vf->priv->h < -1)) {
 172       // TODO: establish a direct connection to the user's brain
 173       // and find out what the heck he thinks MPlayer should do
 174       // with this nonsense.
 175       mp_msg(MSGT_VFILTER, MSGL_ERR, "SwScale: EUSERBROKEN Check your parameters, they make no sense!\n");
 176       return 0;
 177     }
 178
 179     if (vf->priv->w == -1)
 180       vf->priv->w = width;
 181     if (vf->priv->w == 0)
 182       vf->priv->w = d_width;
 183
 184     if (vf->priv->h == -1)
 185       vf->priv->h = height;
 186     if (vf->priv->h == 0)
 187       vf->priv->h = d_height;
 188
 189     if (vf->priv->w == -3)
 190       vf->priv->w = vf->priv->h * width / height;
 191     if (vf->priv->w == -2)
 192       vf->priv->w = vf->priv->h * d_width / d_height;
 193
 194     if (vf->priv->h == -3)
 195       vf->priv->h = vf->priv->w * height / width;
 196     if (vf->priv->h == -2)
 197       vf->priv->h = vf->priv->w * d_height / d_width;
 198
 199     if (round_w)
 200       vf->priv->w = ((vf->priv->w + 8) / 16) * 16;
 201     if (round_h)
 202       vf->priv->h = ((vf->priv->h + 8) / 16) * 16;
 203
 204     // calculate the missing parameters:
 205     switch(best) {
 206     case IMGFMT_YV12:           /* YV12 needs w & h rounded to 2 */
 207     case IMGFMT_I420:
 208     case IMGFMT_IYUV:
 209     case IMGFMT_NV12:
 210     case IMGFMT_NV21:
 211       vf->priv->h = (vf->priv->h + 1) & ~1;
 212     case IMGFMT_YUY2:           /* YUY2 needs w rounded to 2 */
 213     case IMGFMT_UYVY:
 214       vf->priv->w = (vf->priv->w + 1) & ~1;
 215     }
 216
 217     mp_msg(MSGT_VFILTER,MSGL_DBG2,"SwScale: scaling %dx%d %s to %dx%d %s  \n",
 218         width,height,vo_format_name(outfmt),
 219         vf->priv->w,vf->priv->h,vo_format_name(best));
 220
 221     // free old ctx:
 222     if(vf->priv->ctx) sws_freeContext(vf->priv->ctx);
 223     if(vf->priv->ctx2)sws_freeContext(vf->priv->ctx2);
 224
 225     // new swscaler:
 226     sws_getFlagsAndFilterFromCmdLine(&int_sws_flags, &srcFilter, &dstFilter);
 227     int_sws_flags|= vf->priv->v_chr_drop << SWS_SRC_V_CHR_DROP_SHIFT;
 228     int_sws_flags|= vf->priv->accurate_rnd * SWS_ACCURATE_RND;
 229     vf->priv->ctx=sws_getContext(width, height >> vf->priv->interlaced,
 230             sfmt,
 231                   vf->priv->w, vf->priv->h >> vf->priv->interlaced,
 232             dfmt,
 233             int_sws_flags | get_sws_cpuflags(), srcFilter, dstFilter, vf->priv->param);
 234     if(vf->priv->interlaced){
 235         vf->priv->ctx2=sws_getContext(width, height >> 1,
 236             sfmt,
 237                   vf->priv->w, vf->priv->h >> 1,
 238             dfmt,
 239             int_sws_flags | get_sws_cpuflags(), srcFilter, dstFilter, vf->priv->param);
 240     }
 241     if(!vf->priv->ctx){
 242         // error...
 243         mp_msg(MSGT_VFILTER,MSGL_WARN,"Couldn't init SwScaler for this setup\n");
 244         return 0;
 245     }
 246     vf->priv->fmt=best;
 247
 248     if(vf->priv->palette){
 249         free(vf->priv->palette);
 250         vf->priv->palette=NULL;
 251     }
 252     switch(best){
 253     case IMGFMT_RGB8: {
 254       /* set 332 palette for 8 bpp */
 255         int i;
 256         vf->priv->palette=malloc(4*256);
 257         for(i=0; i<256; i++){
 258             vf->priv->palette[4*i+0]=4*(i>>6)*21;
 259             vf->priv->palette[4*i+1]=4*((i>>3)&7)*9;
 260             vf->priv->palette[4*i+2]=4*((i&7)&7)*9;
 261             vf->priv->palette[4*i+3]=0;
 262         }
 263         break; }
 264     case IMGFMT_BGR8: {
 265       /* set 332 palette for 8 bpp */
 266         int i;
 267         vf->priv->palette=malloc(4*256);
 268         for(i=0; i<256; i++){
 269             vf->priv->palette[4*i+0]=4*(i&3)*21;
 270             vf->priv->palette[4*i+1]=4*((i>>2)&7)*9;
 271             vf->priv->palette[4*i+2]=4*((i>>5)&7)*9;
 272             vf->priv->palette[4*i+3]=0;
 273         }
 274         break; }
 275     case IMGFMT_BGR4:
 276     case IMGFMT_BG4B: {
 277         int i;
 278         vf->priv->palette=malloc(4*16);
 279         for(i=0; i<16; i++){
 280             vf->priv->palette[4*i+0]=4*(i&1)*63;
 281             vf->priv->palette[4*i+1]=4*((i>>1)&3)*21;
 282             vf->priv->palette[4*i+2]=4*((i>>3)&1)*63;
 283             vf->priv->palette[4*i+3]=0;
 284         }
 285         break; }
 286     case IMGFMT_RGB4:
 287     case IMGFMT_RG4B: {
 288         int i;
 289         vf->priv->palette=malloc(4*16);
 290         for(i=0; i<16; i++){
 291             vf->priv->palette[4*i+0]=4*(i>>3)*63;
 292             vf->priv->palette[4*i+1]=4*((i>>1)&3)*21;
 293             vf->priv->palette[4*i+2]=4*((i&1)&1)*63;
 294             vf->priv->palette[4*i+3]=0;
 295         }
 296         break; }
 297     }
 298
 299     if(!opt_screen_size_x && !opt_screen_size_y && !(screen_size_xy >= 0.001)){
 300         // Compute new d_width and d_height, preserving aspect
 301         // while ensuring that both are >= output size in pixels.
 302         if (vf->priv->h * d_width > vf->priv->w * d_height) {
 303                 d_width = vf->priv->h * d_width / d_height;
 304                 d_height = vf->priv->h;
 305         } else {
 306                 d_height = vf->priv->w * d_height / d_width;
 307                 d_width = vf->priv->w;
 308         }
 309         //d_width=d_width*vf->priv->w/width;
 310         //d_height=d_height*vf->priv->h/height;
 311     }
 312     return vf_next_config(vf,vf->priv->w,vf->priv->h,d_width,d_height,flags,best);
 313 }
 314
 315 static void start_slice(struct vf_instance_s* vf, mp_image_t *mpi){
 316 //    printf("start_slice called! flag=%d\n",mpi->flags&MP_IMGFLAG_DRAW_CALLBACK);
 317     if(!(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)) return; // shouldn't happen
 318     // they want slices!!! allocate the buffer.
 319     mpi->priv=vf->dmpi=vf_get_image(vf->next,vf->priv->fmt,
 320 //      mpi->type, mpi->flags & (~MP_IMGFLAG_DRAW_CALLBACK),
 321         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
 322         vf->priv->w, vf->priv->h);
 323 }
 324
 325 static void scale(struct SwsContext *sws1, struct SwsContext *sws2, uint8_t *src[3], int src_stride[3], int y, int h,
 326                   uint8_t *dst[3], int dst_stride[3], int interlaced){
 327     uint8_t *src2[3]={src[0], src[1], src[2]};
 328 #ifdef WORDS_BIGENDIAN
 329     uint32_t pal2[256];
 330     if (src[1] && !src[2]){
 331         int i;
 332         for(i=0; i<256; i++)
 333             pal2[i]= bswap_32(((uint32_t*)src[1])[i]);
 334         src2[1]= pal2;
 335     }
 336 #endif
 337
 338     if(interlaced){
 339         int i;
 340         uint8_t *dst2[3]={dst[0], dst[1], dst[2]};
 341         int src_stride2[3]={2*src_stride[0], 2*src_stride[1], 2*src_stride[2]};
 342         int dst_stride2[3]={2*dst_stride[0], 2*dst_stride[1], 2*dst_stride[2]};
 343
 344         sws_scale_ordered(sws1, src2, src_stride2, y>>1, h>>1, dst2, dst_stride2);
 345         for(i=0; i<3; i++){
 346             src2[i] += src_stride[i];
 347             dst2[i] += dst_stride[i];
 348         }
 349         sws_scale_ordered(sws2, src2, src_stride2, y>>1, h>>1, dst2, dst_stride2);
 350     }else{
 351         sws_scale_ordered(sws1, src2, src_stride, y, h, dst, dst_stride);
 352     }
 353 }
 354
 355 static void draw_slice(struct vf_instance_s* vf,
 356         unsigned char** src, int* stride, int w,int h, int x, int y){
 357     mp_image_t *dmpi=vf->dmpi;
 358     if(!dmpi){
 359         mp_msg(MSGT_VFILTER,MSGL_FATAL,"vf_scale: draw_slice() called with dmpi=NULL (no get_image?)\n");
 360         return;
 361     }
 362 //    printf("vf_scale::draw_slice() y=%d h=%d\n",y,h);
 363     scale(vf->priv->ctx, vf->priv->ctx2, src, stride, y, h, dmpi->planes, dmpi->stride, vf->priv->interlaced);
 364 }
 365
 366 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
 367     mp_image_t *dmpi=mpi->priv;
 368
 369 //    printf("vf_scale::put_image(): processing whole frame! dmpi=%p flag=%d\n",
 370 //      dmpi, (mpi->flags&MP_IMGFLAG_DRAW_CALLBACK));
 371
 372   if(!(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK && dmpi)){
 373
 374     // hope we'll get DR buffer:
 375     dmpi=vf_get_image(vf->next,vf->priv->fmt,
 376         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
 377         vf->priv->w, vf->priv->h);
 378
 379       scale(vf->priv->ctx, vf->priv->ctx, mpi->planes,mpi->stride,0,mpi->h,dmpi->planes,dmpi->stride, vf->priv->interlaced);
 380   }
 381
 382     if(vf->priv->w==mpi->w && vf->priv->h==mpi->h){
 383         // just conversion, no scaling -> keep postprocessing data
 384         // this way we can apply pp filter to non-yv12 source using scaler
 385         vf_clone_mpi_attributes(dmpi, mpi);
 386     }
 387
 388     if(vf->priv->palette) dmpi->planes[1]=vf->priv->palette; // export palette!
 389
 390     return vf_next_put_image(vf,dmpi, pts);
 391 }
 392
 393 static int control(struct vf_instance_s* vf, int request, void* data){
 394     int *table;
 395     int *inv_table;
 396     int r;
 397     int brightness, contrast, saturation, srcRange, dstRange;
 398     vf_equalizer_t *eq;
 399
 400   if(vf->priv->ctx)
 401     switch(request){
 402     case VFCTRL_GET_EQUALIZER:
 403         r= sws_getColorspaceDetails(vf->priv->ctx, &inv_table, &srcRange, &table, &dstRange, &brightness, &contrast, &saturation);
 404         if(r<0) break;
 405
 406         eq = data;
 407         if (!strcmp(eq->item,"brightness")) {
 408                 eq->value =  ((brightness*100) + (1<<15))>>16;
 409         }
 410         else if (!strcmp(eq->item,"contrast")) {
 411                 eq->value = (((contrast  *100) + (1<<15))>>16) - 100;
 412         }
 413         else if (!strcmp(eq->item,"saturation")) {
 414                 eq->value = (((saturation*100) + (1<<15))>>16) - 100;
 415         }
 416         else
 417                 break;
 418         return CONTROL_TRUE;
 419     case VFCTRL_SET_EQUALIZER:
 420         r= sws_getColorspaceDetails(vf->priv->ctx, &inv_table, &srcRange, &table, &dstRange, &brightness, &contrast, &saturation);
 421         if(r<0) break;
 422 //printf("set %f %f %f\n", brightness/(float)(1<<16), contrast/(float)(1<<16), saturation/(float)(1<<16));
 423         eq = data;
 424
 425         if (!strcmp(eq->item,"brightness")) {
 426                 brightness = (( eq->value     <<16) + 50)/100;
 427         }
 428         else if (!strcmp(eq->item,"contrast")) {
 429                 contrast   = (((eq->value+100)<<16) + 50)/100;
 430         }
 431         else if (!strcmp(eq->item,"saturation")) {
 432                 saturation = (((eq->value+100)<<16) + 50)/100;
 433         }
 434         else
 435                 break;
 436
 437         r= sws_setColorspaceDetails(vf->priv->ctx, inv_table, srcRange, table, dstRange, brightness, contrast, saturation);
 438         if(r<0) break;
 439         if(vf->priv->ctx2){
 440             r= sws_setColorspaceDetails(vf->priv->ctx2, inv_table, srcRange, table, dstRange, brightness, contrast, saturation);
 441             if(r<0) break;
 442         }
 443
 444         return CONTROL_TRUE;
 445     default:
 446         break;
 447     }
 448
 449     return vf_next_control(vf,request,data);
 450 }
 451
 452 //===========================================================================//
 453
 454 //  supported Input formats: YV12, I420, IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8, Y800
 455
 456 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
 457     switch(fmt){
 458     case IMGFMT_YV12:
 459     case IMGFMT_I420:
 460     case IMGFMT_IYUV:
 461     case IMGFMT_UYVY:
 462     case IMGFMT_YUY2:
 463     case IMGFMT_BGR32:
 464     case IMGFMT_BGR24:
 465     case IMGFMT_BGR16:
 466     case IMGFMT_BGR15:
 467     case IMGFMT_RGB32:
 468     case IMGFMT_RGB24:
 469     case IMGFMT_Y800:
 470     case IMGFMT_Y8:
 471     case IMGFMT_YVU9:
 472     case IMGFMT_IF09:
 473     case IMGFMT_444P:
 474     case IMGFMT_422P:
 475     case IMGFMT_411P:
 476     case IMGFMT_BGR8:
 477     case IMGFMT_RGB8:
 478     case IMGFMT_BG4B:
 479     case IMGFMT_RG4B:
 480     {
 481         unsigned int best=find_best_out(vf);
 482         int flags;
 483         if(!best) return 0;      // no matching out-fmt
 484         flags=vf_next_query_format(vf,best);
 485         if(!(flags&(VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW))) return 0; // huh?
 486         if(fmt!=best) flags&=~VFCAP_CSP_SUPPORTED_BY_HW;
 487         // do not allow scaling, if we are before the PP fliter!
 488         if(!(flags&VFCAP_POSTPROC)) flags|=VFCAP_SWSCALE;
 489         return flags;
 490       }
 491     }
 492     return 0;   // nomatching in-fmt
 493 }
 494
 495 static void uninit(struct vf_instance_s *vf){
 496     if(vf->priv->ctx) sws_freeContext(vf->priv->ctx);
 497     if(vf->priv->ctx2) sws_freeContext(vf->priv->ctx2);
 498     if(vf->priv->palette) free(vf->priv->palette);
 499     free(vf->priv);
 500 }
 501
 502 static int open(vf_instance_t *vf, char* args){
 503     vf->config=config;
 504     vf->start_slice=start_slice;
 505     vf->draw_slice=draw_slice;
 506     vf->put_image=put_image;
 507     vf->query_format=query_format;
 508     vf->control= control;
 509     vf->uninit=uninit;
 510     if(!vf->priv) {
 511     vf->priv=malloc(sizeof(struct vf_priv_s));
 512     // TODO: parse args ->
 513     vf->priv->ctx=NULL;
 514     vf->priv->ctx2=NULL;
 515     vf->priv->w=
 516     vf->priv->h=-1;
 517     vf->priv->v_chr_drop=0;
 518     vf->priv->accurate_rnd=0;
 519     vf->priv->param[0]=
 520     vf->priv->param[1]=SWS_PARAM_DEFAULT;
 521     vf->priv->palette=NULL;
 522     } // if(!vf->priv)
 523     if(args) sscanf(args, "%d:%d:%d:%lf:%lf",
 524     &vf->priv->w,
 525     &vf->priv->h,
 526     &vf->priv->v_chr_drop,
 527     &vf->priv->param[0],
 528     &vf->priv->param[1]);
 529     mp_msg(MSGT_VFILTER,MSGL_V,"SwScale params: %d x %d (-1=no scaling)\n",
 530     vf->priv->w,
 531     vf->priv->h);
 532
 533     return 1;
 534 }
 535
 536 //global sws_flags from the command line
 537 int sws_flags=2;
 538
 539 //global srcFilter
 540 static SwsFilter *src_filter= NULL;
 541
 542 float sws_lum_gblur= 0.0;
 543 float sws_chr_gblur= 0.0;
 544 int sws_chr_vshift= 0;
 545 int sws_chr_hshift= 0;
 546 float sws_chr_sharpen= 0.0;
 547 float sws_lum_sharpen= 0.0;
 548
 549 int get_sws_cpuflags(void){
 550     return
 551           (gCpuCaps.hasMMX   ? SWS_CPU_CAPS_MMX   : 0)
 552         | (gCpuCaps.hasMMX2  ? SWS_CPU_CAPS_MMX2  : 0)
 553         | (gCpuCaps.has3DNow ? SWS_CPU_CAPS_3DNOW : 0)
 554         | (gCpuCaps.hasAltiVec ? SWS_CPU_CAPS_ALTIVEC : 0);
 555 }
 556
 557 void sws_getFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, SwsFilter **dstFilterParam)
 558 {
 559         static int firstTime=1;
 560         *flags=0;
 561
 562 #ifdef ARCH_X86
 563         if(gCpuCaps.hasMMX)
 564                 asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
 565 #endif
 566         if(firstTime)
 567         {
 568                 firstTime=0;
 569                 *flags= SWS_PRINT_INFO;
 570         }
 571         else if( mp_msg_test(MSGT_VFILTER,MSGL_DBG2) ) *flags= SWS_PRINT_INFO;
 572
 573         if(src_filter) sws_freeFilter(src_filter);
 574
 575         src_filter= sws_getDefaultFilter(
 576                 sws_lum_gblur, sws_chr_gblur,
 577                 sws_lum_sharpen, sws_chr_sharpen,
 578                 sws_chr_hshift, sws_chr_vshift, verbose>1);
 579
 580         switch(sws_flags)
 581         {
 582                 case 0: *flags|= SWS_FAST_BILINEAR; break;
 583                 case 1: *flags|= SWS_BILINEAR; break;
 584                 case 2: *flags|= SWS_BICUBIC; break;
 585                 case 3: *flags|= SWS_X; break;
 586                 case 4: *flags|= SWS_POINT; break;
 587                 case 5: *flags|= SWS_AREA; break;
 588                 case 6: *flags|= SWS_BICUBLIN; break;
 589                 case 7: *flags|= SWS_GAUSS; break;
 590                 case 8: *flags|= SWS_SINC; break;
 591                 case 9: *flags|= SWS_LANCZOS; break;
 592                 case 10:*flags|= SWS_SPLINE; break;
 593                 default:*flags|= SWS_BILINEAR; break;
 594         }
 595
 596         *srcFilterParam= src_filter;
 597         *dstFilterParam= NULL;
 598 }
 599
 600 // will use sws_flags & src_filter (from cmd line)
 601 struct SwsContext *sws_getContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat)
 602 {
 603         int flags;
 604         SwsFilter *dstFilterParam, *srcFilterParam;
 605         enum PixelFormat dfmt, sfmt;
 606
 607         dfmt = imgfmt2pixfmt(dstFormat);
 608         sfmt = imgfmt2pixfmt(srcFormat);
 609         if (srcFormat == IMGFMT_RGB8 || srcFormat == IMGFMT_BGR8) sfmt = PIX_FMT_PAL8;
 610         sws_getFlagsAndFilterFromCmdLine(&flags, &srcFilterParam, &dstFilterParam);
 611
 612         return sws_getContext(srcW, srcH, sfmt, dstW, dstH, dfmt, flags | get_sws_cpuflags(), srcFilterParam, dstFilterParam, NULL);
 613 }
 614
 615 /// An example of presets usage
 616 static struct size_preset {
 617   char* name;
 618   int w, h;
 619 } vf_size_presets_defs[] = {
 620   // TODO add more 'standard' resolutions
 621   { "qntsc", 352, 240 },
 622   { "qpal", 352, 288 },
 623   { "ntsc", 720, 480 },
 624   { "pal", 720, 576 },
 625   { "sntsc", 640, 480 },
 626   { "spal", 768, 576 },
 627   { NULL, 0, 0}
 628 };
 629
 630 #define ST_OFF(f) M_ST_OFF(struct size_preset,f)
 631 static m_option_t vf_size_preset_fields[] = {
 632   {"w", ST_OFF(w), CONF_TYPE_INT, M_OPT_MIN,1 ,0, NULL},
 633   {"h", ST_OFF(h), CONF_TYPE_INT, M_OPT_MIN,1 ,0, NULL},
 634   { NULL, NULL, 0, 0, 0, 0,  NULL }
 635 };
 636
 637 static m_struct_t vf_size_preset = {
 638   "scale_size_preset",
 639   sizeof(struct size_preset),
 640   NULL,
 641   vf_size_preset_fields
 642 };
 643
 644 static m_struct_t vf_opts;
 645 static m_obj_presets_t size_preset = {
 646   &vf_size_preset, // Input struct desc
 647   &vf_opts, // Output struct desc
 648   vf_size_presets_defs, // The list of presets
 649   ST_OFF(name) // At wich offset is the name field in the preset struct
 650 };
 651
 652 /// Now the options
 653 #undef ST_OFF
 654 #define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
 655 static m_option_t vf_opts_fields[] = {
 656   {"w", ST_OFF(w), CONF_TYPE_INT, M_OPT_MIN,-11,0, NULL},
 657   {"h", ST_OFF(h), CONF_TYPE_INT, M_OPT_MIN,-11,0, NULL},
 658   {"interlaced", ST_OFF(interlaced), CONF_TYPE_INT, M_OPT_RANGE, 0, 1, NULL},
 659   {"chr-drop", ST_OFF(v_chr_drop), CONF_TYPE_INT, M_OPT_RANGE, 0, 3, NULL},
 660   {"param" , ST_OFF(param[0]), CONF_TYPE_DOUBLE, M_OPT_RANGE, 0.0, 100.0, NULL},
 661   {"param2", ST_OFF(param[1]), CONF_TYPE_DOUBLE, M_OPT_RANGE, 0.0, 100.0, NULL},
 662   // Note that here the 2 field is NULL (ie 0)
 663   // As we want this option to act on the option struct itself
 664   {"presize", 0, CONF_TYPE_OBJ_PRESETS, 0, 0, 0, &size_preset},
 665   {"noup", ST_OFF(noup), CONF_TYPE_INT, M_OPT_RANGE, 0, 2, NULL},
 666   {"arnd", ST_OFF(accurate_rnd), CONF_TYPE_FLAG, 0, 0, 1, NULL},
 667   { NULL, NULL, 0, 0, 0, 0,  NULL }
 668 };
 669
 670 static m_struct_t vf_opts = {
 671   "scale",
 672   sizeof(struct vf_priv_s),
 673   &vf_priv_dflt,
 674   vf_opts_fields
 675 };
 676
 677 const vf_info_t vf_info_scale = {
 678     "software scaling",
 679     "scale",
 680     "A'rpi",
 681     "",
 682     open,
 683     &vf_opts
 684 };
 685
 686 //===========================================================================//