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