git.sesse.net Git - vlc/blob - src/video_output/vout_intf.c

   1 /*****************************************************************************
   2  * vout_intf.c : video output interface
   3  *****************************************************************************
   4  * Copyright (C) 2000-2007 the VideoLAN team
   5  *
   6  * Authors: Gildas Bazin <gbazin@videolan.org>
   7  *
   8  * This program 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  * This program 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
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32
  33 #include <stdio.h>
  34 #include <stdlib.h>                                                /* free() */
  35 #include <sys/types.h>                                          /* opendir() */
  36 #include <sys/stat.h>
  37 #include <dirent.h>                                             /* opendir() */
  38 #include <assert.h>
  39 #include <time.h>                                           /* strftime */
  40
  41 #include <vlc_interface.h>
  42 #include <vlc_block.h>
  43 #include <vlc_playlist.h>
  44
  45 #include <vlc_vout.h>
  46 #include <vlc_image.h>
  47 #include <vlc_osd.h>
  48 #include <vlc_charset.h>
  49
  50 #include <vlc_strings.h>
  51 #include <vlc_charset.h>
  52 #include "../libvlc.h"
  53 #include "vout_internal.h"
  54
  55 /*****************************************************************************
  56  * Local prototypes
  57  *****************************************************************************/
  58 static void InitWindowSize( vout_thread_t *, unsigned *, unsigned * );
  59
  60 /* Object variables callbacks */
  61 static int ZoomCallback( vlc_object_t *, char const *,
  62                          vlc_value_t, vlc_value_t, void * );
  63 static int CropCallback( vlc_object_t *, char const *,
  64                          vlc_value_t, vlc_value_t, void * );
  65 static int AspectCallback( vlc_object_t *, char const *,
  66                            vlc_value_t, vlc_value_t, void * );
  67 static int ScalingCallback( vlc_object_t *, char const *,
  68                             vlc_value_t, vlc_value_t, void * );
  69 static int OnTopCallback( vlc_object_t *, char const *,
  70                           vlc_value_t, vlc_value_t, void * );
  71 static int FullscreenCallback( vlc_object_t *, char const *,
  72                                vlc_value_t, vlc_value_t, void * );
  73 static int SnapshotCallback( vlc_object_t *, char const *,
  74                              vlc_value_t, vlc_value_t, void * );
  75
  76 static int TitleShowCallback( vlc_object_t *, char const *,
  77                               vlc_value_t, vlc_value_t, void * );
  78 static int TitleTimeoutCallback( vlc_object_t *, char const *,
  79                                  vlc_value_t, vlc_value_t, void * );
  80 static int TitlePositionCallback( vlc_object_t *, char const *,
  81                                   vlc_value_t, vlc_value_t, void * );
  82
  83 /*****************************************************************************
  84  * vout_IntfInit: called during the vout creation to initialise misc things.
  85  *****************************************************************************/
  86 static const struct
  87 {
  88     double f_value;
  89     const char *psz_label;
  90 } p_zoom_values[] = {
  91     { 0.25, N_("1:4 Quarter") },
  92     { 0.5, N_("1:2 Half") },
  93     { 1, N_("1:1 Original") },
  94     { 2, N_("2:1 Double") },
  95     { 0, NULL } };
  96
  97 static const struct
  98 {
  99     const char *psz_value;
 100     const char *psz_label;
 101 } p_crop_values[] = {
 102     { "", N_("Default") },
 103     { "16:10", "16:10" },
 104     { "16:9", "16:9" },
 105     { "185:100", "1.85:1" },
 106     { "221:100", "2.21:1" },
 107     { "235:100", "2.35:1" },
 108     { "239:100", "2.39:1" },
 109     { "5:3", "5:3" },
 110     { "4:3", "4:3" },
 111     { "5:4", "5:4" },
 112     { "1:1", "1:1" },
 113     { NULL, NULL } };
 114
 115 static const struct
 116 {
 117     const char *psz_value;
 118     const char *psz_label;
 119 } p_aspect_ratio_values[] = {
 120     { "", N_("Default") },
 121     { "1:1", "1:1" },
 122     { "4:3", "4:3" },
 123     { "16:9", "16:9" },
 124     { "16:10", "16:10" },
 125     { "221:100", "2.21:1" },
 126     { "5:4", "5:4" },
 127     { NULL, NULL } };
 128
 129 static void AddCustomRatios( vout_thread_t *p_vout, const char *psz_var,
 130                              char *psz_list )
 131 {
 132     if( psz_list && *psz_list )
 133     {
 134         char *psz_cur = psz_list;
 135         char *psz_next;
 136         while( psz_cur && *psz_cur )
 137         {
 138             vlc_value_t val, text;
 139             psz_next = strchr( psz_cur, ',' );
 140             if( psz_next )
 141             {
 142                 *psz_next = '\0';
 143                 psz_next++;
 144             }
 145             val.psz_string = psz_cur;
 146             text.psz_string = psz_cur;
 147             var_Change( p_vout, psz_var, VLC_VAR_ADDCHOICE, &val, &text);
 148             psz_cur = psz_next;
 149         }
 150     }
 151 }
 152
 153 void vout_IntfInit( vout_thread_t *p_vout )
 154 {
 155     vlc_value_t val, text, old_val;
 156     bool b_force_par = false;
 157     char *psz_buf;
 158     int i;
 159
 160     /* Create a few object variables we'll need later on */
 161     var_Create( p_vout, "snapshot-path", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 162     var_Create( p_vout, "snapshot-prefix", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 163     var_Create( p_vout, "snapshot-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 164     var_Create( p_vout, "snapshot-preview", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 165     var_Create( p_vout, "snapshot-sequential",
 166                 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 167     var_Create( p_vout, "snapshot-num", VLC_VAR_INTEGER );
 168     var_SetInteger( p_vout, "snapshot-num", 1 );
 169     var_Create( p_vout, "snapshot-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 170     var_Create( p_vout, "snapshot-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 171
 172     var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 173     var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 174     p_vout->i_alignment = var_CreateGetInteger( p_vout, "align" );
 175
 176     var_Create( p_vout, "video-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 177     var_Create( p_vout, "video-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 178
 179     var_Create( p_vout, "mouse-hide-timeout",
 180                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 181
 182     p_vout->p->b_title_show = var_CreateGetBool( p_vout, "video-title-show" );
 183     p_vout->p->i_title_timeout =
 184         (mtime_t)var_CreateGetInteger( p_vout, "video-title-timeout" );
 185     p_vout->p->i_title_position =
 186         var_CreateGetInteger( p_vout, "video-title-position" );
 187     p_vout->p->psz_title =  NULL;
 188
 189     var_AddCallback( p_vout, "video-title-show", TitleShowCallback, NULL );
 190     var_AddCallback( p_vout, "video-title-timeout", TitleTimeoutCallback, NULL );
 191     var_AddCallback( p_vout, "video-title-position", TitlePositionCallback, NULL );
 192
 193     /* Zoom object var */
 194     var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_ISCOMMAND |
 195                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 196
 197     text.psz_string = _("Zoom");
 198     var_Change( p_vout, "zoom", VLC_VAR_SETTEXT, &text, NULL );
 199
 200     var_Get( p_vout, "zoom", &old_val );
 201
 202     for( i = 0; p_zoom_values[i].f_value; i++ )
 203     {
 204         if( old_val.f_float == p_zoom_values[i].f_value )
 205             var_Change( p_vout, "zoom", VLC_VAR_DELCHOICE, &old_val, NULL );
 206         val.f_float = p_zoom_values[i].f_value;
 207         text.psz_string = _( p_zoom_values[i].psz_label );
 208         var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
 209     }
 210
 211     var_Set( p_vout, "zoom", old_val ); /* Is this really needed? */
 212
 213     var_AddCallback( p_vout, "zoom", ZoomCallback, NULL );
 214
 215     /* Crop offset vars */
 216     var_Create( p_vout, "crop-left", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 217     var_Create( p_vout, "crop-top", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 218     var_Create( p_vout, "crop-right", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 219     var_Create( p_vout, "crop-bottom", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 220
 221     var_AddCallback( p_vout, "crop-left", CropCallback, NULL );
 222     var_AddCallback( p_vout, "crop-top", CropCallback, NULL );
 223     var_AddCallback( p_vout, "crop-right", CropCallback, NULL );
 224     var_AddCallback( p_vout, "crop-bottom", CropCallback, NULL );
 225
 226     /* Crop object var */
 227     var_Create( p_vout, "crop", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 228                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 229
 230     text.psz_string = _("Crop");
 231     var_Change( p_vout, "crop", VLC_VAR_SETTEXT, &text, NULL );
 232
 233     val.psz_string = (char*)"";
 234     var_Change( p_vout, "crop", VLC_VAR_DELCHOICE, &val, 0 );
 235
 236     for( i = 0; p_crop_values[i].psz_value; i++ )
 237     {
 238         val.psz_string = (char*)p_crop_values[i].psz_value;
 239         text.psz_string = _( p_crop_values[i].psz_label );
 240         var_Change( p_vout, "crop", VLC_VAR_ADDCHOICE, &val, &text );
 241     }
 242
 243     /* update triggered every time the vout's crop parameters are changed */
 244     var_Create( p_vout, "crop-update", VLC_VAR_VOID );
 245
 246     /* Add custom crop ratios */
 247     psz_buf = config_GetPsz( p_vout, "custom-crop-ratios" );
 248     AddCustomRatios( p_vout, "crop", psz_buf );
 249     free( psz_buf );
 250
 251     var_AddCallback( p_vout, "crop", CropCallback, NULL );
 252     var_Get( p_vout, "crop", &old_val );
 253     if( old_val.psz_string && *old_val.psz_string )
 254         var_TriggerCallback( p_vout, "crop" );
 255     free( old_val.psz_string );
 256
 257     /* Monitor pixel aspect-ratio */
 258     var_Create( p_vout, "monitor-par", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 259     var_Get( p_vout, "monitor-par", &val );
 260     if( val.psz_string && *val.psz_string )
 261     {
 262         char *psz_parser = strchr( val.psz_string, ':' );
 263         unsigned int i_aspect_num = 0, i_aspect_den = 0;
 264         float i_aspect = 0;
 265         if( psz_parser )
 266         {
 267             i_aspect_num = strtol( val.psz_string, 0, 10 );
 268             i_aspect_den = strtol( ++psz_parser, 0, 10 );
 269         }
 270         else
 271         {
 272             i_aspect = atof( val.psz_string );
 273             vlc_ureduce( &i_aspect_num, &i_aspect_den,
 274                          i_aspect *VOUT_ASPECT_FACTOR, VOUT_ASPECT_FACTOR, 0 );
 275         }
 276         if( !i_aspect_num || !i_aspect_den ) i_aspect_num = i_aspect_den = 1;
 277
 278         p_vout->p->i_par_num = i_aspect_num;
 279         p_vout->p->i_par_den = i_aspect_den;
 280
 281         vlc_ureduce( &p_vout->p->i_par_num, &p_vout->p->i_par_den,
 282                      p_vout->p->i_par_num, p_vout->p->i_par_den, 0 );
 283
 284         msg_Dbg( p_vout, "overriding monitor pixel aspect-ratio: %i:%i",
 285                  p_vout->p->i_par_num, p_vout->p->i_par_den );
 286         b_force_par = true;
 287     }
 288     free( val.psz_string );
 289
 290     /* Aspect-ratio object var */
 291     var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 292                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 293
 294     text.psz_string = _("Aspect-ratio");
 295     var_Change( p_vout, "aspect-ratio", VLC_VAR_SETTEXT, &text, NULL );
 296
 297     val.psz_string = (char*)"";
 298     var_Change( p_vout, "aspect-ratio", VLC_VAR_DELCHOICE, &val, 0 );
 299
 300     for( i = 0; p_aspect_ratio_values[i].psz_value; i++ )
 301     {
 302         val.psz_string = (char*)p_aspect_ratio_values[i].psz_value;
 303         text.psz_string = _( p_aspect_ratio_values[i].psz_label );
 304         var_Change( p_vout, "aspect-ratio", VLC_VAR_ADDCHOICE, &val, &text );
 305     }
 306
 307     /* Add custom aspect ratios */
 308     psz_buf = config_GetPsz( p_vout, "custom-aspect-ratios" );
 309     AddCustomRatios( p_vout, "aspect-ratio", psz_buf );
 310     free( psz_buf );
 311
 312     var_AddCallback( p_vout, "aspect-ratio", AspectCallback, NULL );
 313     var_Get( p_vout, "aspect-ratio", &old_val );
 314     if( (old_val.psz_string && *old_val.psz_string) || b_force_par )
 315         var_TriggerCallback( p_vout, "aspect-ratio" );
 316     free( old_val.psz_string );
 317
 318     /* Add variables to manage scaling video */
 319     var_Create( p_vout, "autoscale", VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 320                 | VLC_VAR_ISCOMMAND );
 321     text.psz_string = _("Autoscale video");
 322     var_Change( p_vout, "autoscale", VLC_VAR_SETTEXT, &text, NULL );
 323     var_AddCallback( p_vout, "autoscale", ScalingCallback, NULL );
 324     p_vout->b_autoscale = var_GetBool( p_vout, "autoscale" );
 325
 326     var_Create( p_vout, "scale", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT
 327                 | VLC_VAR_ISCOMMAND );
 328     text.psz_string = _("Scale factor");
 329     var_Change( p_vout, "scale", VLC_VAR_SETTEXT, &text, NULL );
 330     var_AddCallback( p_vout, "scale", ScalingCallback, NULL );
 331     p_vout->i_zoom = (int)( ZOOM_FP_FACTOR * var_GetFloat( p_vout, "scale" ) );
 332
 333     /* Initialize the dimensions of the video window */
 334     InitWindowSize( p_vout, &p_vout->i_window_width,
 335                     &p_vout->i_window_height );
 336
 337     /* Add a variable to indicate if the window should be on top of others */
 338     var_Create( p_vout, "video-on-top", VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 339                 | VLC_VAR_ISCOMMAND );
 340     text.psz_string = _("Always on top");
 341     var_Change( p_vout, "video-on-top", VLC_VAR_SETTEXT, &text, NULL );
 342     var_AddCallback( p_vout, "video-on-top", OnTopCallback, NULL );
 343
 344     /* Add a variable to indicate whether we want window decoration or not */
 345     var_Create( p_vout, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 346
 347     /* Add a fullscreen variable */
 348     if( var_CreateGetBoolCommand( p_vout, "fullscreen" ) )
 349     {
 350         /* user requested fullscreen */
 351         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 352     }
 353     text.psz_string = _("Fullscreen");
 354     var_Change( p_vout, "fullscreen", VLC_VAR_SETTEXT, &text, NULL );
 355     var_AddCallback( p_vout, "fullscreen", FullscreenCallback, NULL );
 356
 357     /* Add a snapshot variable */
 358     var_Create( p_vout, "video-snapshot", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
 359     text.psz_string = _("Snapshot");
 360     var_Change( p_vout, "video-snapshot", VLC_VAR_SETTEXT, &text, NULL );
 361     var_AddCallback( p_vout, "video-snapshot", SnapshotCallback, NULL );
 362
 363     /* Mouse coordinates */
 364     var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
 365     var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
 366     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 367     var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
 368     var_Create( p_vout, "mouse-clicked", VLC_VAR_BOOL );
 369
 370     var_Create( p_vout, "intf-change", VLC_VAR_BOOL );
 371     var_SetBool( p_vout, "intf-change", true );
 372 }
 373
 374 /*****************************************************************************
 375  * vout_Snapshot: generates a snapshot.
 376  *****************************************************************************/
 377 /**
 378  * This function will inject a subpicture into the vout with the provided
 379  * picture
 380  */
 381 static int VoutSnapshotPip( vout_thread_t *p_vout, picture_t *p_pic )
 382 {
 383     subpicture_t *p_subpic = subpicture_NewFromPicture( VLC_OBJECT(p_vout),
 384                                                         p_pic, VLC_CODEC_YUVA );
 385     if( !p_subpic )
 386         return VLC_EGENERIC;
 387
 388     /* FIXME DEFAULT_CHAN is not good (used by the text) but
 389      * hardcoded 0 doesn't seem right */
 390     p_subpic->i_channel = 0;
 391     p_subpic->i_start = mdate();
 392     p_subpic->i_stop  = p_subpic->i_start + 4000000;
 393     p_subpic->b_ephemer = true;
 394     p_subpic->b_fade = true;
 395
 396     /* Reduce the picture to 1/4^2 of the screen */
 397     p_subpic->i_original_picture_width  *= 4;
 398     p_subpic->i_original_picture_height *= 4;
 399
 400     spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
 401     return VLC_SUCCESS;
 402 }
 403 /**
 404  * This function will return the default directory used for snapshots
 405  */
 406 static char *VoutSnapshotGetDefaultDirectory( void )
 407 {
 408     char *psz_path = NULL;
 409 #if defined(__APPLE__) || defined(SYS_BEOS)
 410
 411     if( asprintf( &psz_path, "%s/Desktop",
 412                   config_GetHomeDir() ) == -1 )
 413         psz_path = NULL;
 414
 415 #elif defined(WIN32) && !defined(UNDER_CE)
 416
 417     /* Get the My Pictures folder path */
 418     char *p_mypicturesdir = NULL;
 419     typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
 420                                                LPWSTR );
 421     #ifndef CSIDL_FLAG_CREATE
 422     #   define CSIDL_FLAG_CREATE 0x8000
 423     #endif
 424     #ifndef CSIDL_MYPICTURES
 425     #   define CSIDL_MYPICTURES 0x27
 426     #endif
 427     #ifndef SHGFP_TYPE_CURRENT
 428     #   define SHGFP_TYPE_CURRENT 0
 429     #endif
 430
 431     HINSTANCE shfolder_dll;
 432     SHGETFOLDERPATH SHGetFolderPath ;
 433
 434     /* load the shfolder dll to retrieve SHGetFolderPath */
 435     if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
 436     {
 437        wchar_t wdir[PATH_MAX];
 438        SHGetFolderPath = (void *)GetProcAddress( shfolder_dll,
 439                                                   _T("SHGetFolderPathW") );
 440         if ((SHGetFolderPath != NULL )
 441          && SUCCEEDED (SHGetFolderPath (NULL,
 442                                        CSIDL_MYPICTURES | CSIDL_FLAG_CREATE,
 443                                        NULL, SHGFP_TYPE_CURRENT,
 444                                        wdir)))
 445             p_mypicturesdir = FromWide (wdir);
 446
 447         FreeLibrary( shfolder_dll );
 448     }
 449
 450     if( p_mypicturesdir == NULL )
 451         psz_path = strdup( config_GetHomeDir() );
 452     else
 453         psz_path = p_mypicturesdir;
 454
 455 #else
 456
 457     /* XXX: This saves in the data directory. Shouldn't we try saving
 458      *      to psz_homedir/Desktop or something nicer ? */
 459     psz_path = config_GetUserDataDir();
 460
 461 #endif
 462
 463     return psz_path;
 464 }
 465 /**
 466  * This function will save a video snapshot to a file
 467  */
 468 static int VoutWriteSnapshot( vout_thread_t *p_vout, char **ppsz_filename,
 469                               const block_t *p_image,
 470                               const char *psz_path,
 471                               const char *psz_format,
 472                               const char *psz_prefix_fmt )
 473 {
 474     /* */
 475     char *psz_filename;
 476     DIR *p_path = utf8_opendir( psz_path );
 477     if( p_path != NULL )
 478     {
 479         /* The use specified a directory path */
 480         closedir( p_path );
 481
 482         /* */
 483         char *psz_prefix = NULL;
 484         if( psz_prefix_fmt )
 485             psz_prefix = str_format( p_vout, psz_prefix_fmt );
 486         if( !psz_prefix )
 487         {
 488             psz_prefix = strdup( "vlcsnap-" );
 489             if( !psz_prefix )
 490                 goto error;
 491         }
 492
 493         if( var_GetBool( p_vout, "snapshot-sequential" ) )
 494         {
 495             int i_num = var_GetInteger( p_vout, "snapshot-num" );
 496             for( ; ; i_num++ )
 497             {
 498                 struct stat st;
 499
 500                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%05d.%s",
 501                               psz_path, psz_prefix, i_num++, psz_format ) < 0 )
 502                 {
 503                     free( psz_prefix );
 504                     goto error;
 505                 }
 506                 if( utf8_stat( psz_filename, &st ) )
 507                     break;
 508                 free( psz_filename );
 509             }
 510
 511             var_SetInteger( p_vout, "snapshot-num", i_num );
 512         }
 513         else
 514         {
 515             struct tm    curtime;
 516             time_t       lcurtime = time( NULL ) ;
 517
 518             if( !localtime_r( &lcurtime, &curtime ) )
 519             {
 520                 const unsigned int i_id = (p_image->i_pts / 100000) & 0xFFFFFF;
 521
 522                 msg_Warn( p_vout, "failed to get current time. Falling back to legacy snapshot naming" );
 523
 524                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%u.%s",
 525                               psz_path, psz_prefix, i_id, psz_format ) < 0 )
 526                     psz_filename = NULL;
 527             }
 528             else
 529             {
 530                 /* suffix with the last decimal digit in 10s of seconds resolution
 531                  * FIXME gni ? */
 532                 const int i_id = (p_image->i_pts / (100*1000)) & 0xFF;
 533                 char psz_curtime[128];
 534
 535                 if( !strftime( psz_curtime, sizeof(psz_curtime), "%Y-%m-%d-%Hh%Mm%Ss", &curtime ) )
 536                     strcpy( psz_curtime, "error" );
 537
 538                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%s%1u.%s",
 539                               psz_path, psz_prefix, psz_curtime, i_id, psz_format ) < 0 )
 540                     psz_filename = NULL;
 541             }
 542         }
 543         free( psz_prefix );
 544     }
 545     else
 546     {
 547         /* The user specified a full path name (including file name) */
 548         psz_filename = str_format( p_vout, psz_path );
 549         path_sanitize( psz_filename );
 550     }
 551
 552     if( !psz_filename )
 553         goto error;
 554
 555     /* Save the snapshot */
 556     FILE *p_file = utf8_fopen( psz_filename, "wb" );
 557     if( !p_file )
 558     {
 559         msg_Err( p_vout, "Failed to open '%s'", psz_filename );
 560         free( psz_filename );
 561         goto error;
 562     }
 563     if( fwrite( p_image->p_buffer, p_image->i_buffer, 1, p_file ) != 1 )
 564     {
 565         msg_Err( p_vout, "Failed to write to '%s'", psz_filename );
 566         fclose( p_file );
 567         free( psz_filename );
 568         goto error;
 569     }
 570     fclose( p_file );
 571
 572     /* */
 573     if( ppsz_filename )
 574         *ppsz_filename = psz_filename;
 575     else
 576         free( psz_filename );
 577
 578     return VLC_SUCCESS;
 579
 580 error:
 581     msg_Err( p_vout, "could not save snapshot" );
 582     return VLC_EGENERIC;
 583 }
 584
 585 /**
 586  * This function will display the name and a PIP of the provided snapshot
 587  */
 588 static void VoutOsdSnapshot( vout_thread_t *p_vout, picture_t *p_pic, const char *psz_filename )
 589 {
 590     msg_Dbg( p_vout, "snapshot taken (%s)", psz_filename );
 591     vout_OSDMessage( VLC_OBJECT( p_vout ), DEFAULT_CHAN, "%s", psz_filename );
 592
 593     if( var_GetBool( p_vout, "snapshot-preview" ) )
 594     {
 595         if( VoutSnapshotPip( p_vout, p_pic ) )
 596             msg_Warn( p_vout, "Failed to display snapshot" );
 597     }
 598 }
 599
 600 /* */
 601 int vout_GetSnapshot( vout_thread_t *p_vout,
 602                       block_t **pp_image, picture_t **pp_picture,
 603                       video_format_t *p_fmt,
 604                       const char *psz_format, mtime_t i_timeout )
 605 {
 606     vout_thread_sys_t *p_sys = p_vout->p;
 607
 608     vlc_mutex_lock( &p_sys->snapshot.lock );
 609     p_sys->snapshot.i_request++;
 610
 611     const mtime_t i_deadline = mdate() + i_timeout;
 612     while( p_sys->snapshot.b_available && !p_sys->snapshot.p_picture )
 613     {
 614         if( vlc_cond_timedwait( &p_sys->snapshot.wait, &p_sys->snapshot.lock,
 615                                 i_deadline ) )
 616             break;
 617     }
 618
 619     picture_t *p_picture = p_sys->snapshot.p_picture;
 620     if( p_picture )
 621         p_sys->snapshot.p_picture = p_picture->p_next;
 622     else if( p_sys->snapshot.i_request > 0 )
 623         p_sys->snapshot.i_request--;
 624     vlc_mutex_unlock( &p_sys->snapshot.lock );
 625
 626     if( !p_picture )
 627     {
 628         msg_Err( p_vout, "Failed to grab a snapshot" );
 629         return VLC_EGENERIC;
 630     }
 631
 632     if( pp_image )
 633     {
 634         vlc_fourcc_t i_format = VLC_CODEC_PNG;
 635         if( psz_format && image_Type2Fourcc( psz_format ) )
 636             i_format = image_Type2Fourcc( psz_format );
 637
 638         const int i_override_width  = var_GetInteger( p_vout, "snapshot-width" );
 639         const int i_override_height = var_GetInteger( p_vout, "snapshot-height" );
 640
 641         if( picture_Export( VLC_OBJECT(p_vout), pp_image, p_fmt,
 642                             p_picture, i_format, i_override_width, i_override_height ) )
 643         {
 644             msg_Err( p_vout, "Failed to convert image for snapshot" );
 645             picture_Release( p_picture );
 646             return VLC_EGENERIC;
 647         }
 648     }
 649     if( pp_picture )
 650         *pp_picture = p_picture;
 651     else
 652         picture_Release( p_picture );
 653     return VLC_SUCCESS;
 654 }
 655
 656 /**
 657  * This function will handle a snapshot request
 658  */
 659 static void VoutSaveSnapshot( vout_thread_t *p_vout )
 660 {
 661     char *psz_path = var_GetNonEmptyString( p_vout, "snapshot-path" );
 662     char *psz_format = var_GetNonEmptyString( p_vout, "snapshot-format" );
 663     char *psz_prefix = var_GetNonEmptyString( p_vout, "snapshot-prefix" );
 664
 665     /* */
 666     picture_t *p_picture;
 667     block_t *p_image;
 668     video_format_t fmt;
 669
 670     /* 500ms timeout
 671      * XXX it will cause trouble with low fps video (< 2fps) */
 672     if( vout_GetSnapshot( p_vout, &p_image, &p_picture, &fmt, psz_format, 500*1000 ) )
 673     {
 674         p_picture = NULL;
 675         p_image = NULL;
 676         goto exit;
 677     }
 678
 679     if( !psz_path )
 680     {
 681         psz_path = VoutSnapshotGetDefaultDirectory();
 682         if( !psz_path )
 683         {
 684             msg_Err( p_vout, "no path specified for snapshots" );
 685             goto exit;
 686         }
 687     }
 688
 689     char *psz_filename;
 690     if( VoutWriteSnapshot( p_vout, &psz_filename,
 691                            p_image,
 692                            psz_path, psz_format, psz_prefix ) )
 693         goto exit;
 694
 695     VoutOsdSnapshot( p_vout, p_picture, psz_filename );
 696
 697     /* Generate a media player event  - Right now just trigger a global libvlc var
 698         CHECK: Could not find a more local object. The goal is to communicate
 699         vout_thread with libvlc_media_player or its input_thread */
 700     var_SetString( p_vout->p_libvlc, "vout-snapshottaken", psz_filename );
 701     free( psz_filename );
 702
 703 exit:
 704     if( p_image )
 705         block_Release( p_image );
 706     if( p_picture )
 707         picture_Release( p_picture );
 708     free( psz_prefix );
 709     free( psz_format );
 710     free( psz_path );
 711 }
 712
 713 /*****************************************************************************
 714  * Handle filters
 715  *****************************************************************************/
 716
 717 void vout_EnableFilter( vout_thread_t *p_vout, const char *psz_name,
 718                         bool b_add, bool b_setconfig )
 719 {
 720     char *psz_parser;
 721     char *psz_string;
 722     const char *psz_filter_type;
 723
 724     /* FIXME temporary hack */
 725     const char *psz_module_name = psz_name;
 726     if( !strcmp( psz_name, "magnify" ) ||
 727         !strcmp( psz_name, "puzzle" ) ||
 728         !strcmp( psz_name, "logo" ) ||
 729         !strcmp( psz_name, "wall" ) ||
 730         !strcmp( psz_name, "clone" ) )
 731         psz_module_name = "video_filter_wrapper";
 732
 733     module_t *p_obj = module_find( psz_module_name );
 734     if( !p_obj )
 735     {
 736         msg_Err( p_vout, "Unable to find filter module \"%s\".", psz_name );
 737         return;
 738     }
 739
 740     if( module_provides( p_obj, "video filter" ) )
 741     {
 742         psz_filter_type = "vout-filter";
 743     }
 744     else if( module_provides( p_obj, "video filter2" ) )
 745     {
 746         psz_filter_type = "video-filter";
 747     }
 748     else if( module_provides( p_obj, "sub filter" ) )
 749     {
 750         psz_filter_type = "sub-filter";
 751     }
 752     else
 753     {
 754         module_release( p_obj );
 755         msg_Err( p_vout, "Unknown video filter type." );
 756         return;
 757     }
 758     module_release( p_obj );
 759
 760     if( !strcmp( psz_filter_type, "sub-filter") )
 761         psz_string = var_GetString( vout_GetSpu( p_vout ), psz_filter_type );
 762     else
 763         psz_string = var_GetString( p_vout, psz_filter_type );
 764
 765     /* Todo : Use some generic chain manipulation functions */
 766     if( !psz_string ) psz_string = strdup("");
 767
 768     psz_parser = strstr( psz_string, psz_name );
 769     if( b_add )
 770     {
 771         if( !psz_parser )
 772         {
 773             psz_parser = psz_string;
 774             if( asprintf( &psz_string, (*psz_string) ? "%s:%s" : "%s%s",
 775                           psz_string, psz_name ) == -1 )
 776             {
 777                 free( psz_parser );
 778                 return;
 779             }
 780             free( psz_parser );
 781         }
 782         else
 783             return;
 784     }
 785     else
 786     {
 787         if( psz_parser )
 788         {
 789             memmove( psz_parser, psz_parser + strlen(psz_name) +
 790                             (*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ),
 791                             strlen(psz_parser + strlen(psz_name)) + 1 );
 792
 793             /* Remove trailing : : */
 794             if( *(psz_string+strlen(psz_string ) -1 ) == ':' )
 795             {
 796                 *(psz_string+strlen(psz_string ) -1 ) = '\0';
 797             }
 798          }
 799          else
 800          {
 801              free( psz_string );
 802              return;
 803          }
 804     }
 805
 806     if( b_setconfig )
 807     {
 808         if( !strcmp( psz_filter_type, "sub-filter") )
 809             config_PutPsz( vout_GetSpu( p_vout ), psz_filter_type, psz_string );
 810         else
 811             config_PutPsz( p_vout, psz_filter_type, psz_string );
 812     }
 813
 814     if( !strcmp( psz_filter_type, "sub-filter") )
 815         var_SetString( vout_GetSpu( p_vout ), psz_filter_type, psz_string );
 816     else
 817         var_SetString( p_vout, psz_filter_type, psz_string );
 818
 819     free( psz_string );
 820 }
 821
 822 /*****************************************************************************
 823  * InitWindowSize: find the initial dimensions the video window should have.
 824  *****************************************************************************
 825  * This function will check the "width", "height" and "zoom" config options and
 826  * will calculate the size that the video window should have.
 827  *****************************************************************************/
 828 static void InitWindowSize( vout_thread_t *p_vout, unsigned *pi_width,
 829                             unsigned *pi_height )
 830 {
 831 #define FP_FACTOR 1000                             /* our fixed point factor */
 832
 833     int i_width = var_GetInteger( p_vout, "width" );
 834     int i_height = var_GetInteger( p_vout, "height" );
 835     float f_zoom = var_GetFloat( p_vout, "zoom" );
 836     uint64_t ll_zoom = (uint64_t)( FP_FACTOR * f_zoom );
 837
 838     if( i_width > 0 && i_height > 0)
 839     {
 840         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 841         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 842     }
 843     else if( i_width > 0 )
 844     {
 845         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 846         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 847             p_vout->fmt_in.i_sar_den * i_width / p_vout->fmt_in.i_sar_num /
 848             FP_FACTOR / p_vout->fmt_in.i_visible_width );
 849     }
 850     else if( i_height > 0 )
 851     {
 852         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 853         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 854             p_vout->fmt_in.i_sar_num * i_height / p_vout->fmt_in.i_sar_den /
 855             FP_FACTOR / p_vout->fmt_in.i_visible_height );
 856     }
 857     else if( p_vout->fmt_in.i_sar_num == 0 || p_vout->fmt_in.i_sar_den == 0 )
 858     {
 859         msg_Warn( p_vout, "aspect ratio screwed up" );
 860         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom / FP_FACTOR );
 861         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom /FP_FACTOR);
 862     }
 863     else if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
 864     {
 865         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 866             p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den / FP_FACTOR );
 867         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom
 868             / FP_FACTOR );
 869     }
 870     else
 871     {
 872         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom
 873             / FP_FACTOR );
 874         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 875             p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num / FP_FACTOR );
 876     }
 877
 878     msg_Dbg( p_vout, "window size: %ux%u", *pi_width, *pi_height );
 879
 880 #undef FP_FACTOR
 881 }
 882
 883 /*****************************************************************************
 884  * Object variables callbacks
 885  *****************************************************************************/
 886 static int ZoomCallback( vlc_object_t *p_this, char const *psz_cmd,
 887                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 888 {
 889     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 890     (void)psz_cmd; (void)oldval; (void)newval; (void)p_data;
 891     InitWindowSize( p_vout, &p_vout->i_window_width,
 892                     &p_vout->i_window_height );
 893     vout_Control( p_vout, VOUT_SET_SIZE, p_vout->i_window_width,
 894                   p_vout->i_window_height );
 895     return VLC_SUCCESS;
 896 }
 897
 898 static int CropCallback( vlc_object_t *p_this, char const *psz_cmd,
 899                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 900 {
 901     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 902     int64_t i_aspect_num, i_aspect_den;
 903     unsigned int i_width, i_height;
 904
 905     (void)oldval; (void)p_data;
 906
 907     /* Restore defaults */
 908     p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset;
 909     p_vout->fmt_in.i_visible_width = p_vout->fmt_render.i_visible_width;
 910     p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset;
 911     p_vout->fmt_in.i_visible_height = p_vout->fmt_render.i_visible_height;
 912
 913     if( !strcmp( psz_cmd, "crop" ) )
 914     {
 915         char *psz_end = NULL, *psz_parser = strchr( newval.psz_string, ':' );
 916         if( psz_parser )
 917         {
 918             /* We're using the 3:4 syntax */
 919             i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
 920             if( psz_end == newval.psz_string || !i_aspect_num ) goto crop_end;
 921
 922             i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
 923             if( psz_end == psz_parser || !i_aspect_den ) goto crop_end;
 924
 925             i_width = p_vout->fmt_in.i_sar_den*p_vout->fmt_render.i_visible_height *
 926                 i_aspect_num / i_aspect_den / p_vout->fmt_in.i_sar_num;
 927             i_height = p_vout->fmt_render.i_visible_width*p_vout->fmt_in.i_sar_num *
 928                 i_aspect_den / i_aspect_num / p_vout->fmt_in.i_sar_den;
 929
 930             if( i_width < p_vout->fmt_render.i_visible_width )
 931             {
 932                 p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset +
 933                     (p_vout->fmt_render.i_visible_width - i_width) / 2;
 934                 p_vout->fmt_in.i_visible_width = i_width;
 935             }
 936             else
 937             {
 938                 p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset +
 939                     (p_vout->fmt_render.i_visible_height - i_height) / 2;
 940                 p_vout->fmt_in.i_visible_height = i_height;
 941             }
 942         }
 943         else
 944         {
 945             psz_parser = strchr( newval.psz_string, 'x' );
 946             if( psz_parser )
 947             {
 948                 /* Maybe we're using the <width>x<height>+<left>+<top> syntax */
 949                 unsigned int i_crop_width, i_crop_height, i_crop_top, i_crop_left;
 950
 951                 i_crop_width = strtol( newval.psz_string, &psz_end, 10 );
 952                 if( psz_end != psz_parser ) goto crop_end;
 953
 954                 psz_parser = strchr( ++psz_end, '+' );
 955                 i_crop_height = strtol( psz_end, &psz_end, 10 );
 956                 if( psz_end != psz_parser ) goto crop_end;
 957
 958                 psz_parser = strchr( ++psz_end, '+' );
 959                 i_crop_left = strtol( psz_end, &psz_end, 10 );
 960                 if( psz_end != psz_parser ) goto crop_end;
 961
 962                 psz_end++;
 963                 i_crop_top = strtol( psz_end, &psz_end, 10 );
 964                 if( *psz_end != '\0' ) goto crop_end;
 965
 966                 if( i_crop_top + i_crop_height >= p_vout->fmt_render.i_visible_height ||
 967                     i_crop_left + i_crop_width >= p_vout->fmt_render.i_visible_width )
 968                 {
 969                     msg_Err( p_vout, "Unable to crop over picture boundaries");
 970                     return VLC_EGENERIC;
 971                 }
 972
 973                 i_width = i_crop_width;
 974                 p_vout->fmt_in.i_visible_width = i_width;
 975
 976                 i_height = i_crop_height;
 977                 p_vout->fmt_in.i_visible_height = i_height;
 978
 979                 p_vout->fmt_in.i_x_offset = i_crop_left;
 980                 p_vout->fmt_in.i_y_offset = i_crop_top;
 981             }
 982             else
 983             {
 984                 /* Maybe we're using the <left>+<top>+<right>+<bottom> syntax */
 985                 unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
 986
 987                 psz_parser = strchr( newval.psz_string, '+' );
 988                 i_crop_left = strtol( newval.psz_string, &psz_end, 10 );
 989                 if( psz_end != psz_parser ) goto crop_end;
 990
 991                 psz_parser = strchr( ++psz_end, '+' );
 992                 i_crop_top = strtol( psz_end, &psz_end, 10 );
 993                 if( psz_end != psz_parser ) goto crop_end;
 994
 995                 psz_parser = strchr( ++psz_end, '+' );
 996                 i_crop_right = strtol( psz_end, &psz_end, 10 );
 997                 if( psz_end != psz_parser ) goto crop_end;
 998
 999                 psz_end++;
1000                 i_crop_bottom = strtol( psz_end, &psz_end, 10 );
1001                 if( *psz_end != '\0' ) goto crop_end;
1002
1003                 if( i_crop_top + i_crop_bottom >= p_vout->fmt_render.i_visible_height ||
1004                     i_crop_right + i_crop_left >= p_vout->fmt_render.i_visible_width )
1005                 {
1006                     msg_Err( p_vout, "Unable to crop over picture boundaries" );
1007                     return VLC_EGENERIC;
1008                 }
1009
1010                 i_width = p_vout->fmt_render.i_visible_width
1011                           - i_crop_left - i_crop_right;
1012                 p_vout->fmt_in.i_visible_width = i_width;
1013
1014                 i_height = p_vout->fmt_render.i_visible_height
1015                            - i_crop_top - i_crop_bottom;
1016                 p_vout->fmt_in.i_visible_height = i_height;
1017
1018                 p_vout->fmt_in.i_x_offset = i_crop_left;
1019                 p_vout->fmt_in.i_y_offset = i_crop_top;
1020             }
1021         }
1022     }
1023     else if( !strcmp( psz_cmd, "crop-top" )
1024           || !strcmp( psz_cmd, "crop-left" )
1025           || !strcmp( psz_cmd, "crop-bottom" )
1026           || !strcmp( psz_cmd, "crop-right" ) )
1027     {
1028         unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1029
1030         i_crop_top = var_GetInteger( p_vout, "crop-top" );
1031         i_crop_left = var_GetInteger( p_vout, "crop-left" );
1032         i_crop_right = var_GetInteger( p_vout, "crop-right" );
1033         i_crop_bottom = var_GetInteger( p_vout, "crop-bottom" );
1034
1035         if( i_crop_top + i_crop_bottom >= p_vout->fmt_render.i_visible_height ||
1036             i_crop_right + i_crop_left >= p_vout->fmt_render.i_visible_width )
1037         {
1038             msg_Err( p_vout, "Unable to crop over picture boundaries" );
1039             return VLC_EGENERIC;
1040         }
1041
1042         i_width = p_vout->fmt_render.i_visible_width
1043                   - i_crop_left - i_crop_right;
1044         p_vout->fmt_in.i_visible_width = i_width;
1045
1046         i_height = p_vout->fmt_render.i_visible_height
1047                    - i_crop_top - i_crop_bottom;
1048         p_vout->fmt_in.i_visible_height = i_height;
1049
1050         p_vout->fmt_in.i_x_offset = i_crop_left;
1051         p_vout->fmt_in.i_y_offset = i_crop_top;
1052     }
1053
1054  crop_end:
1055     InitWindowSize( p_vout, &p_vout->i_window_width,
1056                     &p_vout->i_window_height );
1057
1058     p_vout->i_changes |= VOUT_CROP_CHANGE;
1059
1060     msg_Dbg( p_vout, "cropping picture %ix%i to %i,%i,%ix%i",
1061              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
1062              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
1063              p_vout->fmt_in.i_visible_width,
1064              p_vout->fmt_in.i_visible_height );
1065
1066     var_TriggerCallback( p_vout, "crop-update" );
1067
1068     return VLC_SUCCESS;
1069 }
1070
1071 static int AspectCallback( vlc_object_t *p_this, char const *psz_cmd,
1072                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1073 {
1074     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1075     unsigned int i_aspect_num, i_aspect_den, i_sar_num, i_sar_den;
1076     vlc_value_t val;
1077
1078     char *psz_end, *psz_parser = strchr( newval.psz_string, ':' );
1079     (void)psz_cmd; (void)oldval; (void)p_data;
1080
1081     /* Restore defaults */
1082     p_vout->fmt_in.i_sar_num = p_vout->fmt_render.i_sar_num;
1083     p_vout->fmt_in.i_sar_den = p_vout->fmt_render.i_sar_den;
1084     p_vout->fmt_in.i_aspect = p_vout->fmt_render.i_aspect;
1085     p_vout->render.i_aspect = p_vout->fmt_render.i_aspect;
1086
1087     if( !psz_parser ) goto aspect_end;
1088
1089     i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
1090     if( psz_end == newval.psz_string || !i_aspect_num ) goto aspect_end;
1091
1092     i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
1093     if( psz_end == psz_parser || !i_aspect_den ) goto aspect_end;
1094
1095     i_sar_num = i_aspect_num * p_vout->fmt_render.i_visible_height;
1096     i_sar_den = i_aspect_den * p_vout->fmt_render.i_visible_width;
1097     vlc_ureduce( &i_sar_num, &i_sar_den, i_sar_num, i_sar_den, 0 );
1098     p_vout->fmt_in.i_sar_num = i_sar_num;
1099     p_vout->fmt_in.i_sar_den = i_sar_den;
1100     p_vout->fmt_in.i_aspect = i_aspect_num * VOUT_ASPECT_FACTOR / i_aspect_den;
1101     p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1102
1103  aspect_end:
1104     if( p_vout->p->i_par_num && p_vout->p->i_par_den )
1105     {
1106         p_vout->fmt_in.i_sar_num *= p_vout->p->i_par_den;
1107         p_vout->fmt_in.i_sar_den *= p_vout->p->i_par_num;
1108         p_vout->fmt_in.i_aspect = p_vout->fmt_in.i_aspect *
1109             p_vout->p->i_par_den / p_vout->p->i_par_num;
1110         p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1111     }
1112
1113     p_vout->i_changes |= VOUT_ASPECT_CHANGE;
1114
1115     vlc_ureduce( &i_aspect_num, &i_aspect_den,
1116                  p_vout->fmt_in.i_aspect, VOUT_ASPECT_FACTOR, 0 );
1117     msg_Dbg( p_vout, "new aspect-ratio %i:%i, sample aspect-ratio %i:%i",
1118              i_aspect_num, i_aspect_den,
1119              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den );
1120
1121     if( var_Get( p_vout, "crop", &val ) )
1122         return VLC_EGENERIC;
1123
1124     int i_ret = CropCallback( p_this, "crop", val, val, 0 );
1125     free( val.psz_string );
1126     return i_ret;
1127 }
1128
1129 static int ScalingCallback( vlc_object_t *p_this, char const *psz_cmd,
1130                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1131 {
1132     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1133     (void)oldval; (void)newval; (void)p_data;
1134
1135     vlc_mutex_lock( &p_vout->change_lock );
1136
1137     if( !strcmp( psz_cmd, "autoscale" ) )
1138     {
1139         p_vout->i_changes |= VOUT_SCALE_CHANGE;
1140     }
1141     else if( !strcmp( psz_cmd, "scale" ) )
1142     {
1143         p_vout->i_changes |= VOUT_ZOOM_CHANGE;
1144     }
1145
1146     vlc_mutex_unlock( &p_vout->change_lock );
1147
1148     return VLC_SUCCESS;
1149 }
1150
1151 static int OnTopCallback( vlc_object_t *p_this, char const *psz_cmd,
1152                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1153 {
1154     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1155
1156     vlc_mutex_lock( &p_vout->change_lock );
1157     p_vout->i_changes |= VOUT_ON_TOP_CHANGE;
1158     p_vout->b_on_top = newval.b_bool;
1159     vlc_mutex_unlock( &p_vout->change_lock );
1160
1161     /* Modify libvlc as well because the vout might have to be restarted */
1162     var_Create( p_vout->p_libvlc, "video-on-top", VLC_VAR_BOOL );
1163     var_Set( p_vout->p_libvlc, "video-on-top", newval );
1164
1165     (void)psz_cmd; (void)oldval; (void)p_data;
1166     return VLC_SUCCESS;
1167 }
1168
1169 static int FullscreenCallback( vlc_object_t *p_this, char const *psz_cmd,
1170                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1171 {
1172     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1173     vlc_value_t val;
1174     (void)psz_cmd; (void)oldval; (void)p_data;
1175
1176     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
1177
1178     /* Modify libvlc as well because the vout might have to be restarted */
1179     var_Create( p_vout->p_libvlc, "fullscreen", VLC_VAR_BOOL );
1180     var_Set( p_vout->p_libvlc, "fullscreen", newval );
1181
1182     val.b_bool = true;
1183     var_Set( p_vout, "intf-change", val );
1184     return VLC_SUCCESS;
1185 }
1186
1187 static int SnapshotCallback( vlc_object_t *p_this, char const *psz_cmd,
1188                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1189 {
1190     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1191     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1192     VLC_UNUSED(newval); VLC_UNUSED(p_data);
1193
1194     VoutSaveSnapshot( p_vout );
1195     return VLC_SUCCESS;
1196 }
1197
1198 static int TitleShowCallback( vlc_object_t *p_this, char const *psz_cmd,
1199                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1200 {
1201     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1202     VLC_UNUSED(p_data);
1203     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1204     p_vout->p->b_title_show = newval.b_bool;
1205     return VLC_SUCCESS;
1206 }
1207
1208 static int TitleTimeoutCallback( vlc_object_t *p_this, char const *psz_cmd,
1209                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1210 {
1211     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1212     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1213     p_vout->p->i_title_timeout = (mtime_t) newval.i_int;
1214     return VLC_SUCCESS;
1215 }
1216
1217 static int TitlePositionCallback( vlc_object_t *p_this, char const *psz_cmd,
1218                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1219 {
1220     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1221     VLC_UNUSED(p_data);
1222     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1223     p_vout->p->i_title_position = newval.i_int;
1224     return VLC_SUCCESS;
1225 }