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  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc/vlc.h>
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>                                                /* free() */
  36 #include <sys/types.h>                                          /* opendir() */
  37 #include <dirent.h>                                             /* opendir() */
  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_image.h>
  45 #include <vlc_osd.h>
  46 #include <vlc_charset.h>
  47
  48 #include <vlc_strings.h>
  49 #include <vlc_charset.h>
  50 #include "../libvlc.h"
  51
  52 /*****************************************************************************
  53  * Local prototypes
  54  *****************************************************************************/
  55 static void InitWindowSize( vout_thread_t *, unsigned *, unsigned * );
  56
  57 /* Object variables callbacks */
  58 static int ZoomCallback( vlc_object_t *, char const *,
  59                          vlc_value_t, vlc_value_t, void * );
  60 static int CropCallback( vlc_object_t *, char const *,
  61                          vlc_value_t, vlc_value_t, void * );
  62 static int AspectCallback( vlc_object_t *, char const *,
  63                            vlc_value_t, vlc_value_t, void * );
  64 static int OnTopCallback( vlc_object_t *, char const *,
  65                           vlc_value_t, vlc_value_t, void * );
  66 static int FullscreenCallback( vlc_object_t *, char const *,
  67                                vlc_value_t, vlc_value_t, void * );
  68 static int SnapshotCallback( vlc_object_t *, char const *,
  69                              vlc_value_t, vlc_value_t, void * );
  70
  71 static int TitleShowCallback( vlc_object_t *, char const *,
  72                               vlc_value_t, vlc_value_t, void * );
  73 static int TitleTimeoutCallback( vlc_object_t *, char const *,
  74                                  vlc_value_t, vlc_value_t, void * );
  75 static int TitlePositionCallback( vlc_object_t *, char const *,
  76                                   vlc_value_t, vlc_value_t, void * );
  77
  78 /*****************************************************************************
  79  * vout_RequestWindow: Create/Get a video window if possible.
  80  *****************************************************************************
  81  * This function looks for the main interface and tries to request
  82  * a new video window. If it fails then the vout will still need to create the
  83  * window by itself.
  84  *****************************************************************************/
  85 void *vout_RequestWindow( vout_thread_t *p_vout,
  86                           int *pi_x_hint, int *pi_y_hint,
  87                           unsigned int *pi_width_hint,
  88                           unsigned int *pi_height_hint )
  89 {
  90     intf_thread_t *p_intf = NULL;
  91     vlc_list_t *p_list;
  92     void *p_window;
  93     vlc_value_t val;
  94     int i;
  95
  96     /* Small kludge */
  97     if( !var_Type( p_vout, "aspect-ratio" ) ) vout_IntfInit( p_vout );
  98
  99     /* Get requested coordinates */
 100     *pi_x_hint = var_GetInteger( p_vout, "video-x" );
 101     *pi_y_hint = var_GetInteger( p_vout, "video-y" );
 102
 103     *pi_width_hint = p_vout->i_window_width;
 104     *pi_height_hint = p_vout->i_window_height;
 105
 106     /* Check whether someone provided us with a window ID */
 107     var_Get( p_vout->p_libvlc, "drawable", &val );
 108     if( val.i_int ) return (void *)(intptr_t)val.i_int;
 109
 110     /* Find if the main interface supports embedding */
 111     p_list = vlc_list_find( p_vout, VLC_OBJECT_INTF, FIND_ANYWHERE );
 112     if( !p_list ) return NULL;
 113
 114     for( i = 0; i < p_list->i_count; i++ )
 115     {
 116         p_intf = (intf_thread_t *)p_list->p_values[i].p_object;
 117         if( p_intf->pf_request_window ) break;
 118         p_intf = NULL;
 119     }
 120
 121     if( !p_intf )
 122     {
 123         vlc_list_release( p_list );
 124         return NULL;
 125     }
 126
 127     vlc_object_yield( p_intf );
 128     vlc_list_release( p_list );
 129
 130     p_window = p_intf->pf_request_window( p_intf, p_vout, pi_x_hint, pi_y_hint,
 131                                           pi_width_hint, pi_height_hint );
 132
 133     if( !p_window ) vlc_object_release( p_intf );
 134     else p_vout->p_parent_intf = p_intf;
 135
 136     return p_window;
 137 }
 138
 139 void vout_ReleaseWindow( vout_thread_t *p_vout, void *p_window )
 140 {
 141     intf_thread_t *p_intf = p_vout->p_parent_intf;
 142
 143     if( !p_intf ) return;
 144
 145     vlc_mutex_lock( &p_intf->object_lock );
 146     if( p_intf->b_dead )
 147     {
 148         vlc_mutex_unlock( &p_intf->object_lock );
 149         return;
 150     }
 151
 152     if( !p_intf->pf_release_window )
 153     {
 154         msg_Err( p_vout, "no pf_release_window");
 155         vlc_mutex_unlock( &p_intf->object_lock );
 156         vlc_object_release( p_intf );
 157         return;
 158     }
 159
 160     p_intf->pf_release_window( p_intf, p_window );
 161
 162     p_vout->p_parent_intf = NULL;
 163     vlc_mutex_unlock( &p_intf->object_lock );
 164     vlc_object_release( p_intf );
 165 }
 166
 167 int vout_ControlWindow( vout_thread_t *p_vout, void *p_window,
 168                         int i_query, va_list args )
 169 {
 170     intf_thread_t *p_intf = p_vout->p_parent_intf;
 171     int i_ret;
 172
 173     if( !p_intf ) return VLC_EGENERIC;
 174
 175     vlc_mutex_lock( &p_intf->object_lock );
 176     if( p_intf->b_dead )
 177     {
 178         vlc_mutex_unlock( &p_intf->object_lock );
 179         return VLC_EGENERIC;
 180     }
 181
 182     if( !p_intf->pf_control_window )
 183     {
 184         msg_Err( p_vout, "no pf_control_window");
 185         vlc_mutex_unlock( &p_intf->object_lock );
 186         return VLC_EGENERIC;
 187     }
 188
 189     i_ret = p_intf->pf_control_window( p_intf, p_window, i_query, args );
 190     vlc_mutex_unlock( &p_intf->object_lock );
 191     return i_ret;
 192 }
 193
 194 /*****************************************************************************
 195  * vout_IntfInit: called during the vout creation to initialise misc things.
 196  *****************************************************************************/
 197 static const struct
 198 {
 199     double f_value;
 200     const char *psz_label;
 201 } p_zoom_values[] = {
 202     { 0.25, N_("1:4 Quarter") },
 203     { 0.5, N_("1:2 Half") },
 204     { 1, N_("1:1 Original") },
 205     { 2, N_("2:1 Double") },
 206     { 0, NULL } };
 207
 208 static const struct
 209 {
 210     const char *psz_value;
 211     const char *psz_label;
 212 } p_crop_values[] = {
 213     { "", N_("Default") },
 214     { "1:1", "1:1" },
 215     { "4:3", "4:3" },
 216     { "16:9", "16:9" },
 217     { "16:10", "16:10" },
 218     { "5:4", "5:4" },
 219     { "5:3", "5:3" },
 220     { "1.85:1", "1.85:1" },
 221     { "221:100", "2.21:1" },
 222     { "235:100", "2.35:1" },
 223     { "239:100", "2.39:1" },
 224     { NULL, NULL } };
 225
 226 static const struct
 227 {
 228     const char *psz_value;
 229     const char *psz_label;
 230 } p_aspect_ratio_values[] = {
 231     { "", N_("Default") },
 232     { "1:1", "1:1" },
 233     { "4:3", "4:3" },
 234     { "16:9", "16:9" },
 235     { "16:10", "16:10" },
 236     { "221:100", "2.21:1" },
 237     { "5:4", "5:4" },
 238     { NULL, NULL } };
 239
 240 static void AddCustomRatios( vout_thread_t *p_vout, const char *psz_var,
 241                              char *psz_list )
 242 {
 243     if( psz_list && *psz_list )
 244     {
 245         char *psz_cur = psz_list;
 246         char *psz_next;
 247         while( psz_cur && *psz_cur )
 248         {
 249             vlc_value_t val, text;
 250             psz_next = strchr( psz_cur, ',' );
 251             if( psz_next )
 252             {
 253                 *psz_next = '\0';
 254                 psz_next++;
 255             }
 256             val.psz_string = psz_cur;
 257             text.psz_string = psz_cur;
 258             var_Change( p_vout, psz_var, VLC_VAR_ADDCHOICE, &val, &text);
 259             psz_cur = psz_next;
 260         }
 261     }
 262 }
 263
 264 void vout_IntfInit( vout_thread_t *p_vout )
 265 {
 266     vlc_value_t val, text, old_val;
 267     vlc_bool_t b_force_par = VLC_FALSE;
 268     char *psz_buf;
 269     int i;
 270
 271     /* Create a few object variables we'll need later on */
 272     var_Create( p_vout, "snapshot-path", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 273     var_Create( p_vout, "snapshot-prefix", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 274     var_Create( p_vout, "snapshot-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 275     var_Create( p_vout, "snapshot-preview", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 276     var_Create( p_vout, "snapshot-sequential",
 277                 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 278     var_Create( p_vout, "snapshot-num", VLC_VAR_INTEGER );
 279     var_SetInteger( p_vout, "snapshot-num", 1 );
 280     var_Create( p_vout, "snapshot-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 281     var_Create( p_vout, "snapshot-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 282
 283     var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 284     var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 285     p_vout->i_alignment = var_CreateGetInteger( p_vout, "align" );
 286
 287     var_Create( p_vout, "video-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 288     var_Create( p_vout, "video-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 289
 290     p_vout->b_title_show = var_CreateGetBool( p_vout, "video-title-show" );
 291     p_vout->i_title_timeout =
 292         (mtime_t)var_CreateGetInteger( p_vout, "video-title-timeout" );
 293     p_vout->i_title_position =
 294         var_CreateGetInteger( p_vout, "video-title-position" );
 295
 296     var_AddCallback( p_vout, "video-title-show", TitleShowCallback, NULL );
 297     var_AddCallback( p_vout, "video-title-timeout", TitleTimeoutCallback, NULL );
 298     var_AddCallback( p_vout, "video-title-position", TitlePositionCallback, NULL );
 299
 300     /* Zoom object var */
 301     var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_ISCOMMAND |
 302                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 303
 304     text.psz_string = _("Zoom");
 305     var_Change( p_vout, "zoom", VLC_VAR_SETTEXT, &text, NULL );
 306
 307     var_Get( p_vout, "zoom", &old_val );
 308
 309     for( i = 0; p_zoom_values[i].f_value; i++ )
 310     {
 311         if( old_val.f_float == p_zoom_values[i].f_value )
 312             var_Change( p_vout, "zoom", VLC_VAR_DELCHOICE, &old_val, NULL );
 313         val.f_float = p_zoom_values[i].f_value;
 314         text.psz_string = _( p_zoom_values[i].psz_label );
 315         var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
 316     }
 317
 318     var_Set( p_vout, "zoom", old_val ); /* Is this really needed? */
 319
 320     var_AddCallback( p_vout, "zoom", ZoomCallback, NULL );
 321
 322     /* Crop offset vars */
 323     var_Create( p_vout, "crop-left", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 324     var_Create( p_vout, "crop-top", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 325     var_Create( p_vout, "crop-right", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 326     var_Create( p_vout, "crop-bottom", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 327
 328     var_AddCallback( p_vout, "crop-left", CropCallback, NULL );
 329     var_AddCallback( p_vout, "crop-top", CropCallback, NULL );
 330     var_AddCallback( p_vout, "crop-right", CropCallback, NULL );
 331     var_AddCallback( p_vout, "crop-bottom", CropCallback, NULL );
 332
 333     /* Crop object var */
 334     var_Create( p_vout, "crop", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 335                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 336
 337     text.psz_string = _("Crop");
 338     var_Change( p_vout, "crop", VLC_VAR_SETTEXT, &text, NULL );
 339
 340     val.psz_string = (char*)"";
 341     var_Change( p_vout, "crop", VLC_VAR_DELCHOICE, &val, 0 );
 342
 343     for( i = 0; p_crop_values[i].psz_value; i++ )
 344     {
 345         val.psz_string = (char*)p_crop_values[i].psz_value;
 346         text.psz_string = _( p_crop_values[i].psz_label );
 347         var_Change( p_vout, "crop", VLC_VAR_ADDCHOICE, &val, &text );
 348     }
 349
 350     /* update triggered every time the vout's crop parameters are changed */
 351     var_Create( p_vout, "crop-update", VLC_VAR_VOID );
 352
 353     /* Add custom crop ratios */
 354     psz_buf = config_GetPsz( p_vout, "custom-crop-ratios" );
 355     AddCustomRatios( p_vout, "crop", psz_buf );
 356     free( psz_buf );
 357
 358     var_AddCallback( p_vout, "crop", CropCallback, NULL );
 359     var_Get( p_vout, "crop", &old_val );
 360     if( old_val.psz_string && *old_val.psz_string )
 361         var_Change( p_vout, "crop", VLC_VAR_TRIGGER_CALLBACKS, 0, 0 );
 362     free( old_val.psz_string );
 363
 364     /* Monitor pixel aspect-ratio */
 365     var_Create( p_vout, "monitor-par", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 366     var_Get( p_vout, "monitor-par", &val );
 367     if( val.psz_string && *val.psz_string )
 368     {
 369         char *psz_parser = strchr( val.psz_string, ':' );
 370         unsigned int i_aspect_num = 0, i_aspect_den = 0;
 371         float i_aspect = 0;
 372         if( psz_parser )
 373         {
 374             i_aspect_num = strtol( val.psz_string, 0, 10 );
 375             i_aspect_den = strtol( ++psz_parser, 0, 10 );
 376         }
 377         else
 378         {
 379             i_aspect = atof( val.psz_string );
 380             vlc_ureduce( &i_aspect_num, &i_aspect_den,
 381                          i_aspect *VOUT_ASPECT_FACTOR, VOUT_ASPECT_FACTOR, 0 );
 382         }
 383         if( !i_aspect_num || !i_aspect_den ) i_aspect_num = i_aspect_den = 1;
 384
 385         p_vout->i_par_num = i_aspect_num;
 386         p_vout->i_par_den = i_aspect_den;
 387
 388         vlc_ureduce( &p_vout->i_par_num, &p_vout->i_par_den,
 389                      p_vout->i_par_num, p_vout->i_par_den, 0 );
 390
 391         msg_Dbg( p_vout, "overriding monitor pixel aspect-ratio: %i:%i",
 392                  p_vout->i_par_num, p_vout->i_par_den );
 393         b_force_par = VLC_TRUE;
 394     }
 395     free( val.psz_string );
 396
 397     /* Aspect-ratio object var */
 398     var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 399                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 400
 401     text.psz_string = _("Aspect-ratio");
 402     var_Change( p_vout, "aspect-ratio", VLC_VAR_SETTEXT, &text, NULL );
 403
 404     val.psz_string = (char*)"";
 405     var_Change( p_vout, "aspect-ratio", VLC_VAR_DELCHOICE, &val, 0 );
 406
 407     for( i = 0; p_aspect_ratio_values[i].psz_value; i++ )
 408     {
 409         val.psz_string = (char*)p_aspect_ratio_values[i].psz_value;
 410         text.psz_string = _( p_aspect_ratio_values[i].psz_label );
 411         var_Change( p_vout, "aspect-ratio", VLC_VAR_ADDCHOICE, &val, &text );
 412     }
 413
 414     /* Add custom aspect ratios */
 415     psz_buf = config_GetPsz( p_vout, "custom-aspect-ratios" );
 416     AddCustomRatios( p_vout, "aspect-ratio", psz_buf );
 417     free( psz_buf );
 418
 419     var_AddCallback( p_vout, "aspect-ratio", AspectCallback, NULL );
 420     var_Get( p_vout, "aspect-ratio", &old_val );
 421     if( (old_val.psz_string && *old_val.psz_string) || b_force_par )
 422         var_Change( p_vout, "aspect-ratio", VLC_VAR_TRIGGER_CALLBACKS, 0, 0 );
 423     free( old_val.psz_string );
 424
 425     /* Initialize the dimensions of the video window */
 426     InitWindowSize( p_vout, &p_vout->i_window_width,
 427                     &p_vout->i_window_height );
 428
 429     /* Add a variable to indicate if the window should be on top of others */
 430     var_Create( p_vout, "video-on-top", VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 431                 | VLC_VAR_ISCOMMAND );
 432     text.psz_string = _("Always on top");
 433     var_Change( p_vout, "video-on-top", VLC_VAR_SETTEXT, &text, NULL );
 434     var_AddCallback( p_vout, "video-on-top", OnTopCallback, NULL );
 435
 436     /* Add a variable to indicate whether we want window decoration or not */
 437     var_Create( p_vout, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 438
 439     /* Add a fullscreen variable */
 440     if( var_CreateGetBoolCommand( p_vout, "fullscreen" ) )
 441     {
 442         /* user requested fullscreen */
 443         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 444     }
 445     text.psz_string = _("Fullscreen");
 446     var_Change( p_vout, "fullscreen", VLC_VAR_SETTEXT, &text, NULL );
 447     var_AddCallback( p_vout, "fullscreen", FullscreenCallback, NULL );
 448
 449     /* Add a snapshot variable */
 450     var_Create( p_vout, "video-snapshot", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
 451     text.psz_string = _("Snapshot");
 452     var_Change( p_vout, "video-snapshot", VLC_VAR_SETTEXT, &text, NULL );
 453     var_AddCallback( p_vout, "video-snapshot", SnapshotCallback, NULL );
 454
 455     /* Mouse coordinates */
 456     var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
 457     var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
 458     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 459     var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
 460     var_Create( p_vout, "mouse-clicked", VLC_VAR_INTEGER );
 461
 462     var_Create( p_vout, "intf-change", VLC_VAR_BOOL );
 463     var_SetBool( p_vout, "intf-change", VLC_TRUE );
 464 }
 465
 466 /*****************************************************************************
 467  * vout_Snapshot: generates a snapshot.
 468  *****************************************************************************/
 469 int vout_Snapshot( vout_thread_t *p_vout, picture_t *p_pic )
 470 {
 471     image_handler_t *p_image = image_HandlerCreate( p_vout );
 472     video_format_t fmt_in, fmt_out;
 473     char *psz_filename = NULL;
 474     subpicture_t *p_subpic;
 475     picture_t *p_pif;
 476     vlc_value_t val, format;
 477     DIR *path;
 478     int i_ret;
 479
 480     memset( &fmt_in, 0, sizeof(video_format_t) );
 481     memset( &fmt_out, 0, sizeof(video_format_t) );
 482
 483     var_Get( p_vout, "snapshot-path", &val );
 484     if( val.psz_string && !*val.psz_string )
 485     {
 486         free( val.psz_string );
 487         val.psz_string = 0;
 488     }
 489
 490     /* Embedded snapshot : if snapshot-path == object:object-id, then
 491        create a snapshot_t* and store it in
 492        object(object-id)->p_private, then unlock and signal the
 493        waiting object.
 494      */
 495     if( val.psz_string && !strncmp( val.psz_string, "object:", 7 ) )
 496     {
 497         int i_id;
 498         vlc_object_t* p_dest;
 499         block_t *p_block;
 500         snapshot_t *p_snapshot;
 501         int i_size;
 502
 503         /* Destination object-id is following object: */
 504         i_id = atoi( &val.psz_string[7] );
 505         p_dest = ( vlc_object_t* )vlc_current_object( i_id );
 506         if( !p_dest )
 507         {
 508             msg_Err( p_vout, "Cannot find calling object" );
 509             image_HandlerDelete( p_image );
 510             return VLC_EGENERIC;
 511         }
 512         /* Object must be locked. We will unlock it once we get the
 513            snapshot and written it to p_private */
 514         p_dest->p_private = NULL;
 515
 516         /* Save the snapshot to a memory zone */
 517         fmt_in = p_vout->fmt_in;
 518         fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
 519         fmt_out.i_width = var_GetInteger( p_vout, "snapshot-width" );
 520         fmt_out.i_height = var_GetInteger( p_vout, "snapshot-height" );
 521         fmt_out.i_chroma = VLC_FOURCC( 'p','n','g',' ' );
 522
 523         p_block = ( block_t* ) image_Write( p_image, p_pic, &fmt_in, &fmt_out );
 524         if( !p_block )
 525         {
 526             msg_Err( p_vout, "Could not get snapshot" );
 527             image_HandlerDelete( p_image );
 528             vlc_cond_signal( &p_dest->object_wait );
 529             vlc_object_release( p_dest );
 530             return VLC_EGENERIC;
 531         }
 532
 533         /* Copy the p_block data to a snapshot structure */
 534         /* FIXME: get the timestamp */
 535         p_snapshot = ( snapshot_t* ) malloc( sizeof( snapshot_t ) );
 536         if( !p_snapshot )
 537         {
 538             block_Release( p_block );
 539             image_HandlerDelete( p_image );
 540             vlc_cond_signal( &p_dest->object_wait );
 541             vlc_object_release( p_dest );
 542             return VLC_ENOMEM;
 543         }
 544
 545         i_size = p_block->i_buffer;
 546
 547         p_snapshot->i_width = fmt_out.i_width;
 548         p_snapshot->i_height = fmt_out.i_height;
 549         p_snapshot->i_datasize = i_size;
 550         p_snapshot->date = p_block->i_pts; /* FIXME ?? */
 551         p_snapshot->p_data = ( char* ) malloc( i_size );
 552         if( !p_snapshot->p_data )
 553         {
 554             block_Release( p_block );
 555             free( p_snapshot );
 556             image_HandlerDelete( p_image );
 557             vlc_cond_signal( &p_dest->object_wait );
 558             vlc_object_release( p_dest );
 559             return VLC_ENOMEM;
 560         }
 561         memcpy( p_snapshot->p_data, p_block->p_buffer, p_block->i_buffer );
 562
 563         p_dest->p_private = p_snapshot;
 564
 565         block_Release( p_block );
 566
 567         /* Unlock the object */
 568         vlc_cond_signal( &p_dest->object_wait );
 569         vlc_object_release( p_dest );
 570
 571         image_HandlerDelete( p_image );
 572         return VLC_SUCCESS;
 573     }
 574
 575 #if defined(__APPLE__) || defined(SYS_BEOS)
 576     if( !val.psz_string && p_vout->p_libvlc->psz_homedir )
 577     {
 578         if( asprintf( &val.psz_string, "%s/Desktop",
 579                       p_vout->p_libvlc->psz_homedir ) == -1 )
 580             val.psz_string = NULL;
 581     }
 582
 583 #elif defined(WIN32) && !defined(UNDER_CE)
 584     if( !val.psz_string && p_vout->p_libvlc->psz_homedir )
 585     {
 586         /* Get the My Pictures folder path */
 587
 588         char *p_mypicturesdir = NULL;
 589         typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
 590                                                    LPWSTR );
 591         #ifndef CSIDL_FLAG_CREATE
 592         #   define CSIDL_FLAG_CREATE 0x8000
 593         #endif
 594         #ifndef CSIDL_MYPICTURES
 595         #   define CSIDL_MYPICTURES 0x27
 596         #endif
 597         #ifndef SHGFP_TYPE_CURRENT
 598         #   define SHGFP_TYPE_CURRENT 0
 599         #endif
 600
 601         HINSTANCE shfolder_dll;
 602         SHGETFOLDERPATH SHGetFolderPath ;
 603
 604         /* load the shfolder dll to retrieve SHGetFolderPath */
 605         if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
 606         {
 607            wchar_t wdir[PATH_MAX];
 608            SHGetFolderPath = (void *)GetProcAddress( shfolder_dll,
 609                                                       _T("SHGetFolderPathW") );
 610             if ((SHGetFolderPath != NULL )
 611              && SUCCEEDED (SHGetFolderPath (NULL,
 612                                            CSIDL_MYPICTURES | CSIDL_FLAG_CREATE,
 613                                            NULL, SHGFP_TYPE_CURRENT,
 614                                            wdir)))
 615                 p_mypicturesdir = FromWide (wdir);
 616
 617             FreeLibrary( shfolder_dll );
 618         }
 619
 620         if( p_mypicturesdir == NULL )
 621         {
 622             if( asprintf( &val.psz_string, "%s",
 623                           p_vout->p_libvlc->psz_homedir ) == -1 )
 624                 val.psz_string = NULL;
 625         }
 626         else
 627         {
 628             if( asprintf( &val.psz_string, p_mypicturesdir ) == -1 )
 629                 val.psz_string = NULL;
 630             free( p_mypicturesdir );
 631         }
 632     }
 633
 634 #else
 635     /* XXX: This saves in the data directory. Shouldn't we try saving
 636      *      to psz_homedir/Desktop or something nicer ? */
 637     if( !val.psz_string && p_vout->p_libvlc->psz_datadir )
 638     {
 639         if( asprintf( &val.psz_string, "%s",
 640                       p_vout->p_libvlc->psz_datadir ) == -1 )
 641             val.psz_string = NULL;
 642     }
 643 #endif
 644
 645     if( !val.psz_string )
 646     {
 647         msg_Err( p_vout, "no path specified for snapshots" );
 648         return VLC_EGENERIC;
 649     }
 650     var_Get( p_vout, "snapshot-format", &format );
 651     if( !format.psz_string || !*format.psz_string )
 652     {
 653         free( format.psz_string );
 654         format.psz_string = strdup( "png" );
 655     }
 656
 657     /*
 658      * Did the user specify a directory? If not, path = NULL.
 659      */
 660     path = utf8_opendir ( (const char *)val.psz_string  );
 661     if( path != NULL )
 662     {
 663         char *psz_prefix = var_GetNonEmptyString( p_vout, "snapshot-prefix" );
 664         if( psz_prefix == NULL )
 665             psz_prefix = strdup( "vlcsnap-" );
 666         else
 667         {
 668             char *psz_tmp = str_format( p_vout, psz_prefix );
 669             filename_sanitize( psz_tmp );
 670             free( psz_prefix );
 671             psz_prefix = psz_tmp;
 672         }
 673
 674         closedir( path );
 675         if( var_GetBool( p_vout, "snapshot-sequential" ) == VLC_TRUE )
 676         {
 677             int i_num = var_GetInteger( p_vout, "snapshot-num" );
 678             FILE *p_file;
 679             do
 680             {
 681                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%05d.%s",
 682                               val.psz_string, psz_prefix, i_num++,
 683                               format.psz_string ) == -1 )
 684                 {
 685                     msg_Err( p_vout, "could not create snapshot" );
 686                     image_HandlerDelete( p_image );
 687                     return VLC_EGENERIC;
 688                 }
 689             }
 690             while( ( p_file = utf8_fopen( psz_filename, "r" ) ) && !fclose( p_file ) );
 691             var_SetInteger( p_vout, "snapshot-num", i_num );
 692         }
 693         else
 694         {
 695             if( asprintf( &psz_filename, "%s" DIR_SEP "%s%u.%s",
 696                           val.psz_string, psz_prefix,
 697                           (unsigned int)(p_pic->date / 100000) & 0xFFFFFF,
 698                           format.psz_string ) == -1 )
 699             {
 700                 msg_Err( p_vout, "could not create snapshot" );
 701                 image_HandlerDelete( p_image );
 702                 return VLC_EGENERIC;
 703             }
 704         }
 705
 706         free( psz_prefix );
 707     }
 708     else // The user specified a full path name (including file name)
 709     {
 710         psz_filename = str_format( p_vout, val.psz_string );
 711         path_sanitize( psz_filename );
 712     }
 713
 714     free( val.psz_string );
 715     free( format.psz_string );
 716
 717     fmt_out.i_width = var_GetInteger( p_vout, "snapshot-width" );
 718     fmt_out.i_height = var_GetInteger( p_vout, "snapshot-height" );
 719
 720     if( fmt_out.i_width == 0 && fmt_out.i_height > 0 )
 721     {
 722         float f = (float)p_vout->fmt_in.i_height / fmt_out.i_height;
 723         fmt_out.i_width = p_vout->fmt_in.i_width / f;
 724     }
 725     else if( fmt_out.i_height == 0 && fmt_out.i_width > 0 )
 726     {
 727         float f = (float)p_vout->fmt_in.i_width / fmt_out.i_width;
 728         fmt_out.i_height = p_vout->fmt_in.i_height / f;
 729     }
 730
 731     /* Save the snapshot */
 732     fmt_in = p_vout->fmt_in;
 733     fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
 734     i_ret = image_WriteUrl( p_image, p_pic, &fmt_in, &fmt_out, psz_filename );
 735     if( i_ret != VLC_SUCCESS )
 736     {
 737         msg_Err( p_vout, "could not create snapshot %s", psz_filename );
 738         free( psz_filename );
 739         image_HandlerDelete( p_image );
 740         return VLC_EGENERIC;
 741     }
 742
 743     msg_Dbg( p_vout, "snapshot taken (%s)", psz_filename );
 744     vout_OSDMessage( VLC_OBJECT( p_vout ), DEFAULT_CHAN,
 745                      "%s", psz_filename );
 746     free( psz_filename );
 747
 748     if( var_GetBool( p_vout, "snapshot-preview" ) )
 749     {
 750         /* Inject a subpicture with the snapshot */
 751         memset( &fmt_out, 0, sizeof(fmt_out) );
 752         fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
 753         p_pif = image_Convert( p_image, p_pic, &fmt_in, &fmt_out );
 754         image_HandlerDelete( p_image );
 755         if( !p_pif ) return VLC_EGENERIC;
 756
 757         p_subpic = spu_CreateSubpicture( p_vout->p_spu );
 758         if( p_subpic == NULL )
 759         {
 760              p_pif->pf_release( p_pif );
 761              return VLC_EGENERIC;
 762         }
 763
 764         p_subpic->i_channel = 0;
 765         p_subpic->i_start = mdate();
 766         p_subpic->i_stop = mdate() + 4000000;
 767         p_subpic->b_ephemer = VLC_TRUE;
 768         p_subpic->b_fade = VLC_TRUE;
 769         p_subpic->i_original_picture_width = p_vout->render.i_width * 4;
 770         p_subpic->i_original_picture_height = p_vout->render.i_height * 4;
 771
 772         p_subpic->p_region = spu_CreateRegion( p_vout->p_spu, &fmt_out );
 773         vout_CopyPicture( p_image->p_parent, &p_subpic->p_region->picture,
 774                           p_pif );
 775         p_pif->pf_release( p_pif );
 776
 777         spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
 778     }
 779     else
 780     {
 781         image_HandlerDelete( p_image );
 782     }
 783
 784     return VLC_SUCCESS;
 785 }
 786
 787 /*****************************************************************************
 788  * Handle filters
 789  *****************************************************************************/
 790
 791 void vout_EnableFilter( vout_thread_t *p_vout, char *psz_name,
 792                         vlc_bool_t b_add, vlc_bool_t b_setconfig )
 793 {
 794     char *psz_parser;
 795     char *psz_string = config_GetPsz( p_vout, "vout-filter" );
 796
 797     /* Todo : Use some generic chain manipulation functions */
 798     if( !psz_string ) psz_string = strdup("");
 799
 800     psz_parser = strstr( psz_string, psz_name );
 801     if( b_add )
 802     {
 803         if( !psz_parser )
 804         {
 805             psz_parser = psz_string;
 806             if( asprintf( &psz_string, (*psz_string) ? "%s:%s" : "%s%s",
 807                           psz_string, psz_name ) == -1 )
 808             {
 809                 free( psz_parser );
 810                 return;
 811             }
 812             free( psz_parser );
 813         }
 814         else
 815             return;
 816     }
 817     else
 818     {
 819         if( psz_parser )
 820         {
 821             memmove( psz_parser, psz_parser + strlen(psz_name) +
 822                             (*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ),
 823                             strlen(psz_parser + strlen(psz_name)) + 1 );
 824
 825             /* Remove trailing : : */
 826             if( *(psz_string+strlen(psz_string ) -1 ) == ':' )
 827             {
 828                 *(psz_string+strlen(psz_string ) -1 ) = '\0';
 829             }
 830          }
 831          else
 832          {
 833              free( psz_string );
 834              return;
 835          }
 836     }
 837     if( b_setconfig )
 838         config_PutPsz( p_vout, "vout-filter", psz_string );
 839
 840     var_SetString( p_vout, "vout-filter", psz_string );
 841     free( psz_string );
 842 }
 843
 844 /*****************************************************************************
 845  * vout_ControlDefault: default methods for video output control.
 846  *****************************************************************************/
 847 int vout_vaControlDefault( vout_thread_t *p_vout, int i_query, va_list args )
 848 {
 849     (void)args;
 850     switch( i_query )
 851     {
 852     case VOUT_REPARENT:
 853     case VOUT_CLOSE:
 854         if( p_vout->p_parent_intf )
 855         {
 856             vlc_object_release( p_vout->p_parent_intf );
 857             p_vout->p_parent_intf = NULL;
 858         }
 859         return VLC_SUCCESS;
 860         break;
 861
 862     case VOUT_SNAPSHOT:
 863         p_vout->b_snapshot = VLC_TRUE;
 864         return VLC_SUCCESS;
 865         break;
 866
 867     default:
 868         msg_Dbg( p_vout, "control query not supported" );
 869         return VLC_EGENERIC;
 870     }
 871 }
 872
 873 /*****************************************************************************
 874  * InitWindowSize: find the initial dimensions the video window should have.
 875  *****************************************************************************
 876  * This function will check the "width", "height" and "zoom" config options and
 877  * will calculate the size that the video window should have.
 878  *****************************************************************************/
 879 static void InitWindowSize( vout_thread_t *p_vout, unsigned *pi_width,
 880                             unsigned *pi_height )
 881 {
 882     vlc_value_t val;
 883     int i_width, i_height;
 884     uint64_t ll_zoom;
 885
 886 #define FP_FACTOR 1000                             /* our fixed point factor */
 887
 888     var_Get( p_vout, "width", &val );
 889     i_width = val.i_int;
 890     var_Get( p_vout, "height", &val );
 891     i_height = val.i_int;
 892     var_Get( p_vout, "zoom", &val );
 893     ll_zoom = (uint64_t)( FP_FACTOR * val.f_float );
 894
 895     if( i_width > 0 && i_height > 0)
 896     {
 897         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 898         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 899         goto initwsize_end;
 900     }
 901     else if( i_width > 0 )
 902     {
 903         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 904         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 905             p_vout->fmt_in.i_sar_den * i_width / p_vout->fmt_in.i_sar_num /
 906             FP_FACTOR / p_vout->fmt_in.i_visible_width );
 907         goto initwsize_end;
 908     }
 909     else if( i_height > 0 )
 910     {
 911         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 912         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 913             p_vout->fmt_in.i_sar_num * i_height / p_vout->fmt_in.i_sar_den /
 914             FP_FACTOR / p_vout->fmt_in.i_visible_height );
 915         goto initwsize_end;
 916     }
 917
 918     if( p_vout->fmt_in.i_sar_num == 0 || p_vout->fmt_in.i_sar_den == 0 ) {
 919         msg_Warn( p_vout, "fucked up aspect" );
 920         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom / FP_FACTOR );
 921         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom /FP_FACTOR);
 922     }
 923     else if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
 924     {
 925         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 926             p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den / FP_FACTOR );
 927         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom
 928             / FP_FACTOR );
 929     }
 930     else
 931     {
 932         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom
 933             / FP_FACTOR );
 934         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 935             p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num / FP_FACTOR );
 936     }
 937
 938 initwsize_end:
 939     msg_Dbg( p_vout, "window size: %dx%d", p_vout->i_window_width,
 940              p_vout->i_window_height );
 941
 942 #undef FP_FACTOR
 943 }
 944
 945 /*****************************************************************************
 946  * Object variables callbacks
 947  *****************************************************************************/
 948 static int ZoomCallback( vlc_object_t *p_this, char const *psz_cmd,
 949                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 950 {
 951     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 952     (void)psz_cmd; (void)oldval; (void)newval; (void)p_data;
 953     InitWindowSize( p_vout, &p_vout->i_window_width,
 954                     &p_vout->i_window_height );
 955     vout_Control( p_vout, VOUT_SET_SIZE, p_vout->i_window_width,
 956                   p_vout->i_window_height );
 957     return VLC_SUCCESS;
 958 }
 959
 960 static int CropCallback( vlc_object_t *p_this, char const *psz_cmd,
 961                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 962 {
 963     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 964     int64_t i_aspect_num, i_aspect_den;
 965     unsigned int i_width, i_height;
 966
 967     (void)oldval; (void)p_data;
 968
 969     /* Restore defaults */
 970     p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset;
 971     p_vout->fmt_in.i_visible_width = p_vout->fmt_render.i_visible_width;
 972     p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset;
 973     p_vout->fmt_in.i_visible_height = p_vout->fmt_render.i_visible_height;
 974
 975     if( !strcmp( psz_cmd, "crop" ) )
 976     {
 977         char *psz_end = NULL, *psz_parser = strchr( newval.psz_string, ':' );
 978         if( psz_parser )
 979         {
 980             /* We're using the 3:4 syntax */
 981             i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
 982             if( psz_end == newval.psz_string || !i_aspect_num ) goto crop_end;
 983
 984             i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
 985             if( psz_end == psz_parser || !i_aspect_den ) goto crop_end;
 986
 987             i_width = p_vout->fmt_in.i_sar_den*p_vout->fmt_render.i_visible_height *
 988                 i_aspect_num / i_aspect_den / p_vout->fmt_in.i_sar_num;
 989             i_height = p_vout->fmt_render.i_visible_width*p_vout->fmt_in.i_sar_num *
 990                 i_aspect_den / i_aspect_num / p_vout->fmt_in.i_sar_den;
 991
 992             if( i_width < p_vout->fmt_render.i_visible_width )
 993             {
 994                 p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset +
 995                     (p_vout->fmt_render.i_visible_width - i_width) / 2;
 996                 p_vout->fmt_in.i_visible_width = i_width;
 997             }
 998             else
 999             {
1000                 p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset +
1001                     (p_vout->fmt_render.i_visible_height - i_height) / 2;
1002                 p_vout->fmt_in.i_visible_height = i_height;
1003             }
1004         }
1005         else
1006         {
1007             psz_parser = strchr( newval.psz_string, 'x' );
1008             if( psz_parser )
1009             {
1010                 /* Maybe we're using the <width>x<height>+<left>+<top> syntax */
1011                 unsigned int i_crop_width, i_crop_height, i_crop_top, i_crop_left;
1012
1013                 i_crop_width = strtol( newval.psz_string, &psz_end, 10 );
1014                 if( psz_end != psz_parser ) goto crop_end;
1015
1016                 psz_parser = strchr( ++psz_end, '+' );
1017                 i_crop_height = strtol( psz_end, &psz_end, 10 );
1018                 if( psz_end != psz_parser ) goto crop_end;
1019
1020                 psz_parser = strchr( ++psz_end, '+' );
1021                 i_crop_left = strtol( psz_end, &psz_end, 10 );
1022                 if( psz_end != psz_parser ) goto crop_end;
1023
1024                 psz_end++;
1025                 i_crop_top = strtol( psz_end, &psz_end, 10 );
1026                 if( *psz_end != '\0' ) goto crop_end;
1027
1028                 i_width = i_crop_width;
1029                 p_vout->fmt_in.i_visible_width = i_width;
1030
1031                 i_height = i_crop_height;
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             else
1038             {
1039                 /* Maybe we're using the <left>+<top>+<right>+<bottom> syntax */
1040                 unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1041
1042                 psz_parser = strchr( newval.psz_string, '+' );
1043                 i_crop_left = strtol( newval.psz_string, &psz_end, 10 );
1044                 if( psz_end != psz_parser ) goto crop_end;
1045
1046                 psz_parser = strchr( ++psz_end, '+' );
1047                 i_crop_top = strtol( psz_end, &psz_end, 10 );
1048                 if( psz_end != psz_parser ) goto crop_end;
1049
1050                 psz_parser = strchr( ++psz_end, '+' );
1051                 i_crop_right = strtol( psz_end, &psz_end, 10 );
1052                 if( psz_end != psz_parser ) goto crop_end;
1053
1054                 psz_end++;
1055                 i_crop_bottom = strtol( psz_end, &psz_end, 10 );
1056                 if( *psz_end != '\0' ) goto crop_end;
1057
1058                 i_width = p_vout->fmt_render.i_visible_width
1059                           - i_crop_left - i_crop_right;
1060                 p_vout->fmt_in.i_visible_width = i_width;
1061
1062                 i_height = p_vout->fmt_render.i_visible_height
1063                            - i_crop_top - i_crop_bottom;
1064                 p_vout->fmt_in.i_visible_height = i_height;
1065
1066                 p_vout->fmt_in.i_x_offset = i_crop_left;
1067                 p_vout->fmt_in.i_y_offset = i_crop_top;
1068             }
1069         }
1070     }
1071     else if( !strcmp( psz_cmd, "crop-top" )
1072           || !strcmp( psz_cmd, "crop-left" )
1073           || !strcmp( psz_cmd, "crop-bottom" )
1074           || !strcmp( psz_cmd, "crop-right" ) )
1075     {
1076         unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1077
1078         i_crop_top = var_GetInteger( p_vout, "crop-top" );
1079         i_crop_left = var_GetInteger( p_vout, "crop-left" );
1080         i_crop_right = var_GetInteger( p_vout, "crop-right" );
1081         i_crop_bottom = var_GetInteger( p_vout, "crop-bottom" );
1082
1083         i_width = p_vout->fmt_render.i_visible_width
1084                   - i_crop_left - i_crop_right;
1085         p_vout->fmt_in.i_visible_width = i_width;
1086
1087         i_height = p_vout->fmt_render.i_visible_height
1088                    - i_crop_top - i_crop_bottom;
1089         p_vout->fmt_in.i_visible_height = i_height;
1090
1091         p_vout->fmt_in.i_x_offset = i_crop_left;
1092         p_vout->fmt_in.i_y_offset = i_crop_top;
1093     }
1094
1095  crop_end:
1096     InitWindowSize( p_vout, &p_vout->i_window_width,
1097                     &p_vout->i_window_height );
1098
1099     p_vout->i_changes |= VOUT_CROP_CHANGE;
1100
1101     msg_Dbg( p_vout, "cropping picture %ix%i to %i,%i,%ix%i",
1102              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
1103              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
1104              p_vout->fmt_in.i_visible_width,
1105              p_vout->fmt_in.i_visible_height );
1106
1107     var_SetVoid( p_vout, "crop-update" );
1108
1109     return VLC_SUCCESS;
1110 }
1111
1112 static int AspectCallback( vlc_object_t *p_this, char const *psz_cmd,
1113                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1114 {
1115     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1116     unsigned int i_aspect_num, i_aspect_den, i_sar_num, i_sar_den;
1117     vlc_value_t val;
1118
1119     char *psz_end, *psz_parser = strchr( newval.psz_string, ':' );
1120     (void)psz_cmd; (void)oldval; (void)p_data;
1121
1122     /* Restore defaults */
1123     p_vout->fmt_in.i_sar_num = p_vout->fmt_render.i_sar_num;
1124     p_vout->fmt_in.i_sar_den = p_vout->fmt_render.i_sar_den;
1125     p_vout->fmt_in.i_aspect = p_vout->fmt_render.i_aspect;
1126     p_vout->render.i_aspect = p_vout->fmt_render.i_aspect;
1127
1128     if( !psz_parser ) goto aspect_end;
1129
1130     i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
1131     if( psz_end == newval.psz_string || !i_aspect_num ) goto aspect_end;
1132
1133     i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
1134     if( psz_end == psz_parser || !i_aspect_den ) goto aspect_end;
1135
1136     i_sar_num = i_aspect_num * p_vout->fmt_render.i_visible_height;
1137     i_sar_den = i_aspect_den * p_vout->fmt_render.i_visible_width;
1138     vlc_ureduce( &i_sar_num, &i_sar_den, i_sar_num, i_sar_den, 0 );
1139     p_vout->fmt_in.i_sar_num = i_sar_num;
1140     p_vout->fmt_in.i_sar_den = i_sar_den;
1141     p_vout->fmt_in.i_aspect = i_aspect_num * VOUT_ASPECT_FACTOR / i_aspect_den;
1142     p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1143
1144  aspect_end:
1145     if( p_vout->i_par_num && p_vout->i_par_den )
1146     {
1147         p_vout->fmt_in.i_sar_num *= p_vout->i_par_den;
1148         p_vout->fmt_in.i_sar_den *= p_vout->i_par_num;
1149         p_vout->fmt_in.i_aspect = p_vout->fmt_in.i_aspect *
1150             p_vout->i_par_den / p_vout->i_par_num;
1151         p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1152     }
1153
1154     p_vout->i_changes |= VOUT_ASPECT_CHANGE;
1155
1156     vlc_ureduce( &i_aspect_num, &i_aspect_den,
1157                  p_vout->fmt_in.i_aspect, VOUT_ASPECT_FACTOR, 0 );
1158     msg_Dbg( p_vout, "new aspect-ratio %i:%i, sample aspect-ratio %i:%i",
1159              i_aspect_num, i_aspect_den,
1160              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den );
1161
1162     var_Get( p_vout, "crop", &val );
1163     return CropCallback( p_this, "crop", val, val, 0 );
1164 }
1165
1166 static int OnTopCallback( vlc_object_t *p_this, char const *psz_cmd,
1167                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1168 {
1169     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1170     playlist_t *p_playlist = pl_Yield( p_this );
1171     vout_Control( p_vout, VOUT_SET_STAY_ON_TOP, newval.b_bool );
1172     (void)psz_cmd; (void)oldval; (void)p_data;
1173
1174     /* Modify playlist as well because the vout might have to be restarted */
1175     var_Create( p_playlist, "video-on-top", VLC_VAR_BOOL );
1176     var_Set( p_playlist, "video-on-top", newval );
1177
1178     pl_Release( p_this );
1179     return VLC_SUCCESS;
1180 }
1181
1182 static int FullscreenCallback( vlc_object_t *p_this, char const *psz_cmd,
1183                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1184 {
1185     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1186     vlc_value_t val;
1187     playlist_t *p_playlist = pl_Yield( p_this );
1188     (void)psz_cmd; (void)oldval; (void)p_data;
1189
1190     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
1191
1192     /* Modify playlist as well because the vout might have to be restarted */
1193     var_Create( p_playlist, "fullscreen", VLC_VAR_BOOL );
1194     var_Set( p_playlist, "fullscreen", newval );
1195     pl_Release( p_playlist );
1196
1197     val.b_bool = VLC_TRUE;
1198     var_Set( p_vout, "intf-change", val );
1199     return VLC_SUCCESS;
1200 }
1201
1202 static int SnapshotCallback( vlc_object_t *p_this, char const *psz_cmd,
1203                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1204 {
1205     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1206     VLC_UNUSED(newval); VLC_UNUSED(p_data);
1207     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1208     vout_Control( p_vout, VOUT_SNAPSHOT );
1209     return VLC_SUCCESS;
1210 }
1211
1212 static int TitleShowCallback( vlc_object_t *p_this, char const *psz_cmd,
1213                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1214 {
1215     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1216     VLC_UNUSED(p_data);
1217     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1218     p_vout->b_title_show = newval.b_bool;
1219     return VLC_SUCCESS;
1220 }
1221
1222 static int TitleTimeoutCallback( vlc_object_t *p_this, char const *psz_cmd,
1223                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1224 {
1225     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1226     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1227     p_vout->i_title_timeout = (mtime_t) newval.i_int;
1228     return VLC_SUCCESS;
1229 }
1230
1231 static int TitlePositionCallback( vlc_object_t *p_this, char const *psz_cmd,
1232                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1233 {
1234     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1235     VLC_UNUSED(p_data);
1236     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1237     p_vout->i_title_position = newval.i_int;
1238     return VLC_SUCCESS;
1239 }