libvo/vo_aa.c

   1 /*
   2  * video output driver for AAlib
   3  *
   4  * copyright (c) 2001 Folke Ashberg <folke@ashberg.de>
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 #include <sys/stat.h>
  27 #include <unistd.h>
  28
  29 #include <limits.h>
  30 #include <math.h>
  31 #include <stdarg.h>
  32 #include <time.h>
  33 #include <string.h>
  34 #include <errno.h>
  35
  36 #include "config.h"
  37 #include "video_out.h"
  38 #include "video_out_internal.h"
  39 #include "aspect.h"
  40 #include "libswscale/swscale.h"
  41 #include "libmpcodecs/vf_scale.h"
  42 #include "sub/font_load.h"
  43 #include "sub/sub.h"
  44
  45 #include "osdep/keycodes.h"
  46 #include <aalib.h>
  47 #include "subopt-helper.h"
  48 #include "mp_msg.h"
  49 #include "mp_fifo.h"
  50
  51
  52 #define MESSAGE_DURATION 3
  53 #define MESSAGE_SIZE 512
  54 #define MESSAGE_DEKO " +++ %s +++ "
  55
  56         static const vo_info_t info = {
  57             "AAlib",
  58             "aa",
  59             "Alban Bedel <albeu@free.fr> and Folke Ashberg <folke@ashberg.de>",
  60             ""
  61         };
  62
  63 const LIBVO_EXTERN(aa)
  64
  65 /* aa's main context we use */
  66 aa_context *c;
  67 aa_renderparams *p;
  68 static int fast =0;
  69 /* used for the sws */
  70 static uint8_t * image[MP_MAX_PLANES];
  71 static int image_stride[MP_MAX_PLANES];
  72
  73 /* image infos */
  74 static int image_format;
  75 static int image_width;
  76 static int image_height;
  77 static int image_x, image_y;
  78 static int screen_x, screen_y;
  79 static int screen_w, screen_h;
  80 static int src_width;
  81 static int src_height;
  82
  83 /* osd stuff */
  84 time_t stoposd = 0;
  85 static int showosdmessage = 0;
  86 char osdmessagetext[MESSAGE_SIZE];
  87 char posbar[MESSAGE_SIZE];
  88 static int osdx, osdy;
  89 static int osd_text_length = 0;
  90 int aaconfigmode=1;
  91 font_desc_t* vo_font_save = NULL;
  92 static struct SwsContext *sws=NULL;
  93
  94 /* configuration */
  95 int aaopt_osdcolor = AA_SPECIAL;
  96 int aaopt_subcolor = AA_SPECIAL;
  97
  98 static unsigned char vo_osd_text[64];
  99
 100 static void
 101 resize(void){
 102     /*
 103      * this function is called by aa lib if windows resizes
 104      * further during init, because here we have to calculate
 105      * a little bit
 106      */
 107
 108     aa_resize(c);
 109
 110     aspect_save_screenres(aa_imgwidth(c),aa_imgheight(c));
 111     image_height =  aa_imgheight(c); //src_height;
 112     image_width = aa_imgwidth(c); //src_width;
 113
 114     aspect(&image_width,&image_height,A_ZOOM);
 115
 116     image_x = (aa_imgwidth(c) - image_width) / 2;
 117     image_y = (aa_imgheight(c) - image_height) / 2;
 118     screen_w = image_width * aa_scrwidth(c) / aa_imgwidth(c);
 119     screen_h = image_height * aa_scrheight(c) / aa_imgheight(c);
 120     screen_x = (aa_scrwidth(c) - screen_w) / 2;
 121     screen_y = (aa_scrheight(c) - screen_h) / 2;
 122
 123     if(sws) sws_freeContext(sws);
 124     sws = sws_getContextFromCmdLine(src_width,src_height,image_format,
 125                                    image_width,image_height,IMGFMT_Y8);
 126
 127     memset(image, 0, sizeof(image));
 128     image[0] = aa_image(c) + image_y * aa_imgwidth(c) + image_x;
 129
 130     memset(image_stride, 0, sizeof(image_stride));
 131     image_stride[0] = aa_imgwidth(c);
 132
 133     showosdmessage=0;
 134
 135 }
 136
 137 static void
 138 osdmessage(int duration, int deko, const char *fmt, ...)
 139 {
 140     /*
 141      * for outputting a centered string at the bottom
 142      * of our window for a while
 143      */
 144     va_list ar;
 145     char m[MESSAGE_SIZE];
 146     unsigned int old_len = strlen(osdmessagetext);
 147
 148     va_start(ar, fmt);
 149     vsprintf(m, fmt, ar);
 150     va_end(ar);
 151     if (deko==1) sprintf(osdmessagetext, MESSAGE_DEKO , m);
 152     else strcpy(osdmessagetext, m);
 153
 154     if(old_len > strlen(osdmessagetext)) {
 155       memset(c->textbuffer + osdy * aa_scrwidth(c) + osdx,' ',old_len);
 156       memset(c->attrbuffer + osdy * aa_scrwidth(c) + osdx,0,old_len);
 157     }
 158     showosdmessage=1;
 159     stoposd = time(NULL) + duration;
 160     osdx=(aa_scrwidth(c) / 2) - (strlen(osdmessagetext) / 2 ) ;
 161     posbar[0]='\0';
 162 }
 163
 164 static void
 165 osdpercent(int duration, int deko, int min, int max, int val, const char * desc, const char * unit)
 166 {
 167     /*
 168      * prints a bar for setting values
 169      */
 170     float step;
 171     int where;
 172     int i;
 173
 174
 175     step=(float)aa_scrwidth(c) /(float)(max-min);
 176     where=(val-min)*step;
 177     osdmessage(duration,deko,"%s: %i%s",desc, val, unit);
 178     posbar[0]='|';
 179     posbar[aa_scrwidth(c)-1]='|';
 180     for (i=0;i<aa_scrwidth(c);i++){
 181         if (i==where) posbar[i]='#';
 182         else posbar[i]='-';
 183     }
 184     if (where!=0) posbar[0]='|';
 185     if (where!=(aa_scrwidth(c)-1) ) posbar[aa_scrwidth(c)-1]='|';
 186
 187     posbar[aa_scrwidth(c)]='\0';
 188
 189 }
 190
 191 static void
 192 printosdtext(void)
 193 {
 194     /*
 195      * places the mplayer status osd
 196      */
 197   if (vo_osd_text[0] != 0) {
 198     int len;
 199     if(vo_osd_text[0] < 32) {
 200       len = strlen(sub_osd_names_short[vo_osd_text[0]]) + strlen(vo_osd_text+1) + 2;
 201       aa_printf(c, 0, 0 , aaopt_osdcolor, "%s %s ", sub_osd_names_short[vo_osd_text[0]], vo_osd_text+1);
 202     } else {
 203       len = strlen(vo_osd_text) + 1;
 204       aa_printf(c, 0, 0 , aaopt_osdcolor, "%s ",vo_osd_text);
 205     }
 206
 207     if(len < osd_text_length) {
 208       memset(c->textbuffer + len,' ',osd_text_length - len);
 209       memset(c->attrbuffer + len,0,osd_text_length - len);
 210     }
 211     osd_text_length = len;
 212
 213   }
 214 }
 215
 216 static void
 217 printosdprogbar(void){
 218     /* print mplayer osd-progbar */
 219     if (vo_osd_progbar_type!=-1){
 220         osdpercent(1,1,0,255,vo_osd_progbar_value, sub_osd_names[vo_osd_progbar_type], "");
 221     }
 222 }
 223 static int
 224 config(uint32_t width, uint32_t height, uint32_t d_width,
 225             uint32_t d_height, uint32_t flags, char *title,
 226             uint32_t format) {
 227     /*
 228      * main init
 229      * called by mplayer
 230      */
 231
 232     int i;
 233
 234     aspect_save_orig(width,height);
 235     aspect_save_prescale(d_width,d_height);
 236
 237     src_height = height;
 238     src_width = width;
 239     image_format = format;
 240
 241     /* nothing will change its size, be we need some values initialized */
 242     resize();
 243
 244     /* now init our own 'font' */
 245     if(!vo_font_save) vo_font_save = vo_font;
 246     if(vo_font == vo_font_save) {
 247       vo_font=malloc(sizeof(font_desc_t));//if(!desc) return NULL;
 248       memset(vo_font,0,sizeof(font_desc_t));
 249       vo_font->pic_a[0]=malloc(sizeof(raw_file));
 250       memset(vo_font->pic_a[0],0,sizeof(raw_file));
 251       vo_font->pic_b[0]=malloc(sizeof(raw_file));
 252       memset(vo_font->pic_b[0],0,sizeof(raw_file));
 253
 254 #ifdef CONFIG_FREETYPE
 255       vo_font->dynamic = 0;
 256 #endif
 257
 258       vo_font->spacewidth=1;
 259       vo_font->charspace=0;
 260       vo_font->height=1;
 261       vo_font->pic_a[0]->bmp=malloc(255);
 262       vo_font->pic_a[0]->pal=NULL;
 263       vo_font->pic_b[0]->bmp=malloc(255);
 264       vo_font->pic_b[0]->pal=NULL;
 265       vo_font->pic_a[0]->w=1;
 266       vo_font->pic_a[0]->h=1;
 267       for (i=0; i<255; i++){
 268         vo_font->width[i]=1;
 269         vo_font->font[i]=0;
 270         vo_font->start[i]=i;
 271         vo_font->pic_a[0]->bmp[i]=i;
 272         vo_font->pic_b[0]->bmp[i]=i;
 273       }
 274     }
 275
 276     /* say hello */
 277     osdmessage(5, 1, "Welcome to ASCII ART MPlayer");
 278
 279     mp_msg(MSGT_VO,MSGL_V,"VO: [aa] screendriver:   %s\n", c->driver->name);
 280     mp_msg(MSGT_VO,MSGL_V,"VO: [aa] keyboarddriver: %s\n", c->kbddriver->name);
 281
 282     mp_msg(MSGT_VO,MSGL_INFO,
 283                 "\n"
 284                 "Important suboptions\n"
 285                 "\textended  use use all 256 characters\n"
 286                 "\teight     use eight bit ascii\n"
 287                 "\tdriver    set recommended aalib driver (X11,curses,linux)\n"
 288                 "\thelp      to see all options provided by aalib\n"
 289                 "\n"
 290                 "AA-MPlayer Keys\n"
 291                 "\t1 : contrast -\n"
 292                 "\t2 : contrast +\n"
 293                 "\t3 : brightness -\n"
 294                 "\t4 : brightness +\n"
 295                 "\t5 : fast rendering\n"
 296                 "\t6 : dithering\n"
 297                 "\t7 : invert image\n"
 298                 "\ta : toggles between aa and mplayer control\n"
 299
 300                 "\n"
 301                 "All other keys are MPlayer defaults.\n"
 302
 303
 304           );
 305
 306     return 0;
 307 }
 308
 309 static int
 310 query_format(uint32_t format) {
 311     /*
 312      * ...are we able to... ?
 313      * called by mplayer
 314      * All input format supported by the sws
 315      */
 316     switch(format){
 317         case IMGFMT_YV12:
 318         case IMGFMT_I420:
 319         case IMGFMT_IYUV:
 320         case IMGFMT_IYU2:
 321         case IMGFMT_BGR32:
 322         case IMGFMT_BGR24:
 323         case IMGFMT_BGR16:
 324         case IMGFMT_BGR15:
 325         case IMGFMT_RGB32:
 326         case IMGFMT_RGB24:
 327         case IMGFMT_Y8:
 328         case IMGFMT_Y800:
 329             return VFCAP_CSP_SUPPORTED | VFCAP_SWSCALE | VFCAP_OSD;
 330     }
 331     return 0;
 332 }
 333
 334 static int
 335 draw_frame(uint8_t *src[]) {
 336   int stride[MP_MAX_PLANES] = {0};
 337
 338   switch(image_format) {
 339   case IMGFMT_BGR15:
 340   case IMGFMT_BGR16:
 341     stride[0] = src_width*2;
 342     break;
 343   case IMGFMT_IYU2:
 344   case IMGFMT_BGR24:
 345     stride[0] = src_width*3;
 346     break;
 347   case IMGFMT_BGR32:
 348     stride[0] = src_width*4;
 349     break;
 350   }
 351
 352   sws_scale(sws,src,stride,0,src_height,image,image_stride);
 353
 354    /* Now 'ASCIInate' the image */
 355   if (fast)
 356     aa_fastrender(c, screen_x, screen_y, screen_w + screen_x, screen_h + screen_y );
 357   else
 358     aa_render(c, p,screen_x, screen_y, screen_w + screen_x, screen_h + screen_y );
 359
 360   return 0;
 361 }
 362
 363 static int
 364 draw_slice(uint8_t *src[], int stride[],
 365             int w, int h, int x, int y) {
 366
 367   int dx1 = screen_x + (x * screen_w / src_width);
 368   int dy1 = screen_y + (y * screen_h / src_height);
 369   int dx2 = screen_x + ((x+w) * screen_w / src_width);
 370   int dy2 = screen_y + ((y+h) * screen_h / src_height);
 371
 372   sws_scale(sws,src,stride,y,h,image,image_stride);
 373
 374   /* Now 'ASCIInate' the image */
 375   if (fast)
 376     aa_fastrender(c, dx1, dy1, dx2, dy2 );
 377   else
 378     aa_render(c, p,dx1, dy1, dx2, dy2 );
 379
 380
 381   return 0;
 382 }
 383
 384 static void
 385 flip_page(void) {
 386
 387    /* do we have to put *our* (messages, progbar) osd to aa's txtbuf ? */
 388     if (showosdmessage)
 389       {
 390         if (time(NULL)>=stoposd ) {
 391           showosdmessage=0;
 392           if(*osdmessagetext) {
 393             memset(c->textbuffer + osdy * aa_scrwidth(c) + osdx,' ',strlen(osdmessagetext));
 394             memset(c->attrbuffer + osdy * aa_scrwidth(c) + osdx ,0,strlen(osdmessagetext));
 395             osdmessagetext[0] = '\0';
 396           }
 397           if(*posbar) {
 398             memset(c->textbuffer + (osdy+1) * aa_scrwidth(c),' ',strlen(posbar));
 399             memset(c->attrbuffer + (osdy+1) * aa_scrwidth(c),0,strlen(posbar));
 400           }
 401         } else {
 402           /* update osd */
 403           aa_puts(c, osdx, osdy, AA_SPECIAL, osdmessagetext);
 404           /* posbar? */
 405           if (posbar[0]!='\0')
 406             aa_puts(c, 0, osdy + 1, AA_SPECIAL, posbar);
 407         }
 408       }
 409     /* OSD time & playmode , subtitles */
 410     printosdtext();
 411
 412
 413     /* print out */
 414     aa_flush(c);
 415 }
 416
 417 static void
 418 check_events(void) {
 419     /*
 420      * any events?
 421      * called by show_image and mplayer
 422      */
 423     int key;
 424     while ((key=aa_getevent(c,0))!=AA_NONE ){
 425         if (key>255){
 426             /* some conversations */
 427             switch (key) {
 428                 case AA_UP:
 429                     mplayer_put_key(KEY_UP);
 430                     break;
 431                 case AA_DOWN:
 432                     mplayer_put_key(KEY_DOWN);
 433                     break;
 434                 case AA_LEFT:
 435                     mplayer_put_key(KEY_LEFT);
 436                     break;
 437                 case AA_RIGHT:
 438                     mplayer_put_key(KEY_RIGHT);
 439                     break;
 440                 case AA_ESC:
 441                     mplayer_put_key(KEY_ESC);
 442                     break;
 443                 case 65765:
 444                     mplayer_put_key(KEY_PAGE_UP);
 445                     break;
 446                 case 65766:
 447                     mplayer_put_key(KEY_PAGE_DOWN);
 448                     break;
 449                 default:
 450                     continue; /* aa lib special key */
 451                     break;
 452             }
 453         }
 454         if (key=='a' || key=='A'){
 455             aaconfigmode=!aaconfigmode;
 456             osdmessage(MESSAGE_DURATION, 1, "aa config mode is now %s",
 457                     aaconfigmode==1 ? "on. use keys 5-7" : "off");
 458         }
 459         if (aaconfigmode==1) {
 460             switch (key) {
 461                 /* AA image controls */
 462                 case '5':
 463                     fast=!fast;
 464                     osdmessage(MESSAGE_DURATION, 1, "Fast mode is now %s", fast==1 ? "on" : "off");
 465                     break;
 466                 case '6':
 467                     if (p->dither==AA_FLOYD_S){
 468                         p->dither=AA_NONE;
 469                         osdmessage(MESSAGE_DURATION, 1, "Dithering: Off");
 470                     }else if (p->dither==AA_NONE){
 471                         p->dither=AA_ERRORDISTRIB;
 472                         osdmessage(MESSAGE_DURATION, 1, "Dithering: Error Distribution");
 473                     }else if (p->dither==AA_ERRORDISTRIB){
 474                         p->dither=AA_FLOYD_S;
 475                         osdmessage(MESSAGE_DURATION, 1, "Dithering: Floyd Steinberg");
 476                     }
 477                     break;
 478                 case '7':
 479                     p->inversion=!p->inversion;
 480                     osdmessage(MESSAGE_DURATION, 1, "Invert mode is now %s",
 481                                 p->inversion==1 ? "on" : "off");
 482                     break;
 483
 484                 default :
 485                     /* nothing if we're interested in?
 486                      * the mplayer should handle it!
 487                      */
 488                     mplayer_put_key(key);
 489                     break;
 490             }
 491         }// aaconfigmode
 492         else mplayer_put_key(key);
 493     }
 494 }
 495
 496 static void
 497 uninit(void) {
 498     /*
 499      * THE END
 500      */
 501
 502     if (strstr(c->driver->name,"Curses") || strstr(c->driver->name,"Linux")){
 503         freopen("/dev/tty", "w", stderr);
 504     }
 505     if(vo_font_save) {
 506       free(vo_font->pic_a[0]->bmp);
 507       free(vo_font->pic_a[0]);
 508       free(vo_font->pic_b[0]->bmp);
 509       free(vo_font->pic_b[0]);
 510       free(vo_font);
 511       vo_font = vo_font_save;
 512       vo_font_save = NULL;
 513     }
 514     aa_close(c);
 515 }
 516
 517 static void draw_alpha(int x,int y, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 518     int i,j;
 519     for (i = 0; i < h; i++) {
 520         for (j = 0; j < w; j++) {
 521             if (src[i*stride+j] > 0) {
 522                 c->textbuffer[x + j + (y+i)*aa_scrwidth(c)] = src[i*stride+j];
 523                 c->attrbuffer[x + j + (y+i)*aa_scrwidth(c)] = aaopt_subcolor;
 524             }
 525         }
 526     }
 527 }
 528
 529 static void clear_alpha(int x0,int y0, int w,int h) {
 530   int l;
 531
 532   for(l = 0 ; l < h ; l++) {
 533     memset(c->textbuffer + (y0 + l) * aa_scrwidth(c) + x0,' ',w);
 534     memset(c->attrbuffer + (y0 + l) * aa_scrwidth(c) + x0,0,w);
 535   }
 536 }
 537
 538
 539 static void
 540 draw_osd(void){
 541     char vo_osd_text_save;
 542     int vo_osd_progbar_type_save;
 543
 544     printosdprogbar();
 545     /* let vo_draw_text only write subtitle */
 546     vo_osd_text_save = global_osd->osd_text[0];
 547     global_osd->osd_text[0] = 0;
 548     vo_osd_progbar_type_save=vo_osd_progbar_type;
 549     vo_osd_progbar_type=-1;
 550     vo_remove_text(aa_scrwidth(c), aa_scrheight(c),clear_alpha);
 551     vo_draw_text(aa_scrwidth(c), aa_scrheight(c), draw_alpha);
 552     global_osd->osd_text[0] = vo_osd_text_save;
 553     vo_osd_progbar_type=vo_osd_progbar_type_save;
 554 }
 555
 556 static int
 557 getcolor(char * s){
 558     int i;
 559     char * rest;
 560     if  (s==NULL) return -1;
 561     i=strtol(s, &rest, 10);
 562     if ((rest==NULL || strlen(rest)==0) && i>=0 && i<=5) return i;
 563     if (!strcasecmp(s, "normal")) return AA_NORMAL;
 564     else if (!strcasecmp(s, "dim")) return AA_DIM;
 565     else if (!strcasecmp(s, "bold")) return AA_BOLD;
 566     else if (!strcasecmp(s, "boldfont")) return AA_BOLDFONT;
 567     else if (!strcasecmp(s, "special")) return AA_SPECIAL;
 568     else return -1;
 569 }
 570
 571 static int parse_suboptions(const char *arg) {
 572     char *pseudoargv[4], *osdcolor = NULL, *subcolor = NULL, **strings,
 573          *helpmsg = NULL;
 574     int pseudoargc, displayhelp = 0, *booleans;
 575     const opt_t extra_opts[] = {
 576             {"osdcolor", OPT_ARG_MSTRZ, &osdcolor,    NULL},
 577             {"subcolor", OPT_ARG_MSTRZ, &subcolor,    NULL},
 578             {"help",     OPT_ARG_BOOL,  &displayhelp, NULL} };
 579     opt_t *subopts = NULL, *p;
 580     char * const strings_list[] = {"-driver", "-kbddriver", "-mousedriver", "-font",
 581         "-width", "-height", "-minwidth", "-minheight", "-maxwidth",
 582         "-maxheight", "-recwidth", "-recheight", "-bright",  "-contrast",
 583         "-gamma",  "-dimmul", "-boldmul", "-random" };
 584     char * const booleans_list[] = {"-dim", "-bold", "-reverse", "-normal",
 585         "-boldfont", "-inverse", "-extended", "-eight", "-dither",
 586         "-floyd_steinberg", "-error_distribution"};
 587     char * const nobooleans_list[] = {"-nodim", "-nobold", "-noreverse", "-nonormal",
 588         "-noboldfont", "-noinverse", "-noextended", "-noeight", "-nodither",
 589         "-nofloyd_steinberg", "-noerror_distribution"};
 590     const int nstrings = sizeof(strings_list) / sizeof(char*);
 591     const int nbooleans = sizeof(booleans_list) / sizeof(char*);
 592     const int nextra_opts = sizeof(extra_opts) / sizeof(opt_t);
 593     const int nsubopts = nstrings + nbooleans + nextra_opts;
 594     int i, retval = 0;
 595
 596     subopts = calloc(nsubopts + 1, sizeof(opt_t));
 597     strings = calloc(nstrings, sizeof(char*));
 598     booleans = calloc(nbooleans, sizeof(int));
 599
 600     p = subopts;
 601     for (i=0; i<nstrings; i++, p++) {
 602         p->name = strings_list[i] + 1; // skip '-'
 603         p->type = OPT_ARG_MSTRZ;
 604         p->valp = &strings[i];
 605     }
 606     for (i=0; i<nbooleans; i++, p++) {
 607         p->name = booleans_list[i] + 1;
 608         p->type = OPT_ARG_BOOL;
 609         p->valp = &booleans[i];
 610     }
 611     memcpy(p, extra_opts, sizeof(extra_opts));
 612
 613     retval = subopt_parse(arg, subopts);
 614
 615     if (retval == 0 && displayhelp) {
 616         helpmsg = strdup(aa_help);
 617         for (i=0; i<(signed)strlen(helpmsg); i++)
 618             if (helpmsg[i] == '-') helpmsg[i] = ' ';
 619         mp_tmsg(MSGT_VO, MSGL_INFO, "\n\nHere are the aalib vo_aa suboptions:\n");
 620         mp_msg(MSGT_VO, MSGL_INFO, "%s\n\n", helpmsg);
 621 #define VO_AA_AdditionalOptions _("Additional options vo_aa provides:\n" \
 622 "  help        print this help message\n" \
 623 "  osdcolor    set OSD color\n  subcolor    set subtitle color\n" \
 624 "        the color parameters are:\n           0 : normal\n" \
 625 "           1 : dim\n           2 : bold\n           3 : boldfont\n" \
 626 "           4 : reverse\n           5 : special\n\n\n")
 627
 628         mp_tmsg(MSGT_VO, MSGL_INFO, VO_AA_AdditionalOptions);
 629         retval = -1;
 630     }
 631     if (retval == 0) {
 632         pseudoargv[3] = NULL;
 633         for (i=0; i<nstrings; i++) {
 634             pseudoargc = 3;         // inside loop because aalib changes it
 635             if (strings[i] != NULL) {
 636                 pseudoargv[1] = strings_list[i];
 637                 pseudoargv[2] = strings[i];
 638                 aa_parseoptions(&aa_defparams, &aa_defrenderparams,
 639                                                 &pseudoargc, pseudoargv);
 640             }
 641         }
 642         pseudoargv[2] = NULL;
 643         for (i=0; i<nbooleans; i++) {
 644             pseudoargc = 2;
 645             if (booleans[i]) pseudoargv[1] = booleans_list[i];
 646             else pseudoargv[1] = nobooleans_list[i];
 647             aa_parseoptions(&aa_defparams, &aa_defrenderparams,
 648                                                 &pseudoargc, pseudoargv);
 649         }
 650         if (osdcolor) aaopt_osdcolor = getcolor(osdcolor);
 651         if (subcolor) aaopt_subcolor = getcolor(subcolor);
 652     }
 653
 654     free(subopts);
 655     free(booleans);
 656     if (strings) {
 657         for (i=0; i<nstrings; i++)
 658             free(strings[i]);
 659         free(strings);
 660     }
 661     free(osdcolor);
 662     free(subcolor);
 663     free(helpmsg);
 664     return retval;
 665 }
 666
 667 static int preinit(const char *arg)
 668 {
 669     char * hidis = NULL;
 670     struct stat sbuf;
 671     int fd, vt, major, minor;
 672     FILE * fp;
 673     char fname[12];
 674
 675     if(arg)
 676     {
 677         if (parse_suboptions(arg) != 0)
 678         return ENOSYS;
 679     }
 680
 681         /* initializing of aalib */
 682
 683     hidis=aa_getfirst(&aa_displayrecommended);
 684     if ( hidis==NULL ){
 685         /* check /dev/vcsa<vt> */
 686         /* check only, if no driver is explicit set */
 687         fd = dup (fileno (stderr));
 688         fstat (fd, &sbuf);
 689         major = sbuf.st_rdev >> 8;
 690         vt = minor = sbuf.st_rdev & 0xff;
 691         close (fd);
 692         sprintf (fname, "/dev/vcsa%2.2i", vt);
 693         fp = fopen (fname, "w+");
 694         if (fp==NULL){
 695             fprintf(stderr,"VO: [aa] cannot open %s for writing,"
 696                         "so we'll not use linux driver\n", fname);
 697             aa_recommendlowdisplay("linux");
 698             aa_recommendhidisplay("curses");
 699             aa_recommendhidisplay("X11");
 700         }else fclose(fp);
 701     } else aa_recommendhidisplay(hidis);
 702     c = aa_autoinit(&aa_defparams);
 703
 704     if (c == NULL) {
 705         mp_msg(MSGT_VO,MSGL_ERR,"Cannot initialize aalib\n");
 706         return VO_ERROR;
 707     }
 708     if (!aa_autoinitkbd(c,0)) {
 709         mp_msg(MSGT_VO,MSGL_ERR,"Cannot initialize keyboard\n");
 710         aa_close(c);
 711         return VO_ERROR;
 712     }
 713
 714     aa_resizehandler(c, (void *)resize);
 715     aa_hidecursor(c);
 716     p = aa_getrenderparams();
 717
 718     if ((strstr(c->driver->name,"Curses")) || (strstr(c->driver->name,"Linux"))){
 719         freopen("/dev/null", "w", stderr);
 720         /* disable console blanking */
 721         printf("\033[9;0]");
 722     }
 723
 724     memset(image,0,3*sizeof(uint8_t));
 725     osdmessagetext[0] = '\0';
 726     osdx = osdy = 0;
 727
 728     return 0;
 729 }
 730
 731 static int control(uint32_t request, void *data)
 732 {
 733   switch (request) {
 734   case VOCTRL_QUERY_FORMAT:
 735     return query_format(*((uint32_t*)data));
 736   case VOCTRL_SET_EQUALIZER: {
 737     struct voctrl_set_equalizer_args *args = data;
 738     if (strcmp(args->name, "contrast") == 0)
 739       p->contrast = (args->value + 100) * 64 / 100;
 740     else if (strcmp(args->name, "brightness") == 0)
 741       p->bright = (args->value + 100) * 128 / 100;
 742     return VO_TRUE;
 743   }
 744   case VOCTRL_GET_EQUALIZER: {
 745     struct voctrl_get_equalizer_args *args = data;
 746
 747     if (strcmp(args->name, "contrast") == 0)
 748       *args->valueptr = (p->contrast - 64) * 100 / 64;
 749     else if (strcmp(args->name, "brightness") == 0)
 750       *args->valueptr = (p->bright - 128) * 100 / 128;
 751
 752     return VO_TRUE;
 753   }
 754   }
 755   return VO_NOTIMPL;
 756 }