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_release (wnd);
 144     (void)dummy;
 145 }
 146
 147 int vout_ControlWindow( vout_thread_t *p_vout, void *dummy,
 148                         int i_query, va_list args )
 149 {
 150     vout_window_t *wnd = p_vout->p_window;
 151
 152     if (wnd == NULL)
 153         return VLC_EGENERIC;
 154
 155     assert (wnd->control);
 156     return wnd->control (wnd, i_query, args);
 157 }
 158
 159 /*****************************************************************************
 160  * vout_IntfInit: called during the vout creation to initialise misc things.
 161  *****************************************************************************/
 162 static const struct
 163 {
 164     double f_value;
 165     const char *psz_label;
 166 } p_zoom_values[] = {
 167     { 0.25, N_("1:4 Quarter") },
 168     { 0.5, N_("1:2 Half") },
 169     { 1, N_("1:1 Original") },
 170     { 2, N_("2:1 Double") },
 171     { 0, NULL } };
 172
 173 static const struct
 174 {
 175     const char *psz_value;
 176     const char *psz_label;
 177 } p_crop_values[] = {
 178     { "", N_("Default") },
 179     { "16:10", "16:10" },
 180     { "16:9", "16:9" },
 181     { "1.85:1", "1.85:1" },
 182     { "221:100", "2.21:1" },
 183     { "235:100", "2.35:1" },
 184     { "239:100", "2.39:1" },
 185     { "5:3", "5:3" },
 186     { "4:3", "4:3" },
 187     { "5:4", "5:4" },
 188     { "1:1", "1:1" },
 189     { NULL, NULL } };
 190
 191 static const struct
 192 {
 193     const char *psz_value;
 194     const char *psz_label;
 195 } p_aspect_ratio_values[] = {
 196     { "", N_("Default") },
 197     { "1:1", "1:1" },
 198     { "4:3", "4:3" },
 199     { "16:9", "16:9" },
 200     { "16:10", "16:10" },
 201     { "221:100", "2.21:1" },
 202     { "5:4", "5:4" },
 203     { NULL, NULL } };
 204
 205 static void AddCustomRatios( vout_thread_t *p_vout, const char *psz_var,
 206                              char *psz_list )
 207 {
 208     if( psz_list && *psz_list )
 209     {
 210         char *psz_cur = psz_list;
 211         char *psz_next;
 212         while( psz_cur && *psz_cur )
 213         {
 214             vlc_value_t val, text;
 215             psz_next = strchr( psz_cur, ',' );
 216             if( psz_next )
 217             {
 218                 *psz_next = '\0';
 219                 psz_next++;
 220             }
 221             val.psz_string = psz_cur;
 222             text.psz_string = psz_cur;
 223             var_Change( p_vout, psz_var, VLC_VAR_ADDCHOICE, &val, &text);
 224             psz_cur = psz_next;
 225         }
 226     }
 227 }
 228
 229 void vout_IntfInit( vout_thread_t *p_vout )
 230 {
 231     vlc_value_t val, text, old_val;
 232     bool b_force_par = false;
 233     char *psz_buf;
 234     int i;
 235
 236     /* Create a few object variables we'll need later on */
 237     var_Create( p_vout, "snapshot-path", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 238     var_Create( p_vout, "snapshot-prefix", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 239     var_Create( p_vout, "snapshot-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 240     var_Create( p_vout, "snapshot-preview", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 241     var_Create( p_vout, "snapshot-sequential",
 242                 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 243     var_Create( p_vout, "snapshot-num", VLC_VAR_INTEGER );
 244     var_SetInteger( p_vout, "snapshot-num", 1 );
 245     var_Create( p_vout, "snapshot-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 246     var_Create( p_vout, "snapshot-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 247
 248     var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 249     var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 250     p_vout->i_alignment = var_CreateGetInteger( p_vout, "align" );
 251
 252     var_Create( p_vout, "video-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 253     var_Create( p_vout, "video-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 254
 255     var_Create( p_vout, "mouse-hide-timeout",
 256                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 257
 258     p_vout->b_title_show = var_CreateGetBool( p_vout, "video-title-show" );
 259     p_vout->i_title_timeout =
 260         (mtime_t)var_CreateGetInteger( p_vout, "video-title-timeout" );
 261     p_vout->i_title_position =
 262         var_CreateGetInteger( p_vout, "video-title-position" );
 263
 264     var_AddCallback( p_vout, "video-title-show", TitleShowCallback, NULL );
 265     var_AddCallback( p_vout, "video-title-timeout", TitleTimeoutCallback, NULL );
 266     var_AddCallback( p_vout, "video-title-position", TitlePositionCallback, NULL );
 267
 268     /* Zoom object var */
 269     var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_ISCOMMAND |
 270                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 271
 272     text.psz_string = _("Zoom");
 273     var_Change( p_vout, "zoom", VLC_VAR_SETTEXT, &text, NULL );
 274
 275     var_Get( p_vout, "zoom", &old_val );
 276
 277     for( i = 0; p_zoom_values[i].f_value; i++ )
 278     {
 279         if( old_val.f_float == p_zoom_values[i].f_value )
 280             var_Change( p_vout, "zoom", VLC_VAR_DELCHOICE, &old_val, NULL );
 281         val.f_float = p_zoom_values[i].f_value;
 282         text.psz_string = _( p_zoom_values[i].psz_label );
 283         var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
 284     }
 285
 286     var_Set( p_vout, "zoom", old_val ); /* Is this really needed? */
 287
 288     var_AddCallback( p_vout, "zoom", ZoomCallback, NULL );
 289
 290     /* Crop offset vars */
 291     var_Create( p_vout, "crop-left", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 292     var_Create( p_vout, "crop-top", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 293     var_Create( p_vout, "crop-right", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 294     var_Create( p_vout, "crop-bottom", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 295
 296     var_AddCallback( p_vout, "crop-left", CropCallback, NULL );
 297     var_AddCallback( p_vout, "crop-top", CropCallback, NULL );
 298     var_AddCallback( p_vout, "crop-right", CropCallback, NULL );
 299     var_AddCallback( p_vout, "crop-bottom", CropCallback, NULL );
 300
 301     /* Crop object var */
 302     var_Create( p_vout, "crop", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 303                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 304
 305     text.psz_string = _("Crop");
 306     var_Change( p_vout, "crop", VLC_VAR_SETTEXT, &text, NULL );
 307
 308     val.psz_string = (char*)"";
 309     var_Change( p_vout, "crop", VLC_VAR_DELCHOICE, &val, 0 );
 310
 311     for( i = 0; p_crop_values[i].psz_value; i++ )
 312     {
 313         val.psz_string = (char*)p_crop_values[i].psz_value;
 314         text.psz_string = _( p_crop_values[i].psz_label );
 315         var_Change( p_vout, "crop", VLC_VAR_ADDCHOICE, &val, &text );
 316     }
 317
 318     /* update triggered every time the vout's crop parameters are changed */
 319     var_Create( p_vout, "crop-update", VLC_VAR_VOID );
 320
 321     /* Add custom crop ratios */
 322     psz_buf = config_GetPsz( p_vout, "custom-crop-ratios" );
 323     AddCustomRatios( p_vout, "crop", psz_buf );
 324     free( psz_buf );
 325
 326     var_AddCallback( p_vout, "crop", CropCallback, NULL );
 327     var_Get( p_vout, "crop", &old_val );
 328     if( old_val.psz_string && *old_val.psz_string )
 329         var_Change( p_vout, "crop", VLC_VAR_TRIGGER_CALLBACKS, 0, 0 );
 330     free( old_val.psz_string );
 331
 332     /* Monitor pixel aspect-ratio */
 333     var_Create( p_vout, "monitor-par", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 334     var_Get( p_vout, "monitor-par", &val );
 335     if( val.psz_string && *val.psz_string )
 336     {
 337         char *psz_parser = strchr( val.psz_string, ':' );
 338         unsigned int i_aspect_num = 0, i_aspect_den = 0;
 339         float i_aspect = 0;
 340         if( psz_parser )
 341         {
 342             i_aspect_num = strtol( val.psz_string, 0, 10 );
 343             i_aspect_den = strtol( ++psz_parser, 0, 10 );
 344         }
 345         else
 346         {
 347             i_aspect = atof( val.psz_string );
 348             vlc_ureduce( &i_aspect_num, &i_aspect_den,
 349                          i_aspect *VOUT_ASPECT_FACTOR, VOUT_ASPECT_FACTOR, 0 );
 350         }
 351         if( !i_aspect_num || !i_aspect_den ) i_aspect_num = i_aspect_den = 1;
 352
 353         p_vout->i_par_num = i_aspect_num;
 354         p_vout->i_par_den = i_aspect_den;
 355
 356         vlc_ureduce( &p_vout->i_par_num, &p_vout->i_par_den,
 357                      p_vout->i_par_num, p_vout->i_par_den, 0 );
 358
 359         msg_Dbg( p_vout, "overriding monitor pixel aspect-ratio: %i:%i",
 360                  p_vout->i_par_num, p_vout->i_par_den );
 361         b_force_par = true;
 362     }
 363     free( val.psz_string );
 364
 365     /* Aspect-ratio object var */
 366     var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 367                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 368
 369     text.psz_string = _("Aspect-ratio");
 370     var_Change( p_vout, "aspect-ratio", VLC_VAR_SETTEXT, &text, NULL );
 371
 372     val.psz_string = (char*)"";
 373     var_Change( p_vout, "aspect-ratio", VLC_VAR_DELCHOICE, &val, 0 );
 374
 375     for( i = 0; p_aspect_ratio_values[i].psz_value; i++ )
 376     {
 377         val.psz_string = (char*)p_aspect_ratio_values[i].psz_value;
 378         text.psz_string = _( p_aspect_ratio_values[i].psz_label );
 379         var_Change( p_vout, "aspect-ratio", VLC_VAR_ADDCHOICE, &val, &text );
 380     }
 381
 382     /* Add custom aspect ratios */
 383     psz_buf = config_GetPsz( p_vout, "custom-aspect-ratios" );
 384     AddCustomRatios( p_vout, "aspect-ratio", psz_buf );
 385     free( psz_buf );
 386
 387     var_AddCallback( p_vout, "aspect-ratio", AspectCallback, NULL );
 388     var_Get( p_vout, "aspect-ratio", &old_val );
 389     if( (old_val.psz_string && *old_val.psz_string) || b_force_par )
 390         var_Change( p_vout, "aspect-ratio", VLC_VAR_TRIGGER_CALLBACKS, 0, 0 );
 391     free( old_val.psz_string );
 392
 393     /* Initialize the dimensions of the video window */
 394     InitWindowSize( p_vout, &p_vout->i_window_width,
 395                     &p_vout->i_window_height );
 396
 397     /* Add a variable to indicate if the window should be on top of others */
 398     var_Create( p_vout, "video-on-top", VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 399                 | VLC_VAR_ISCOMMAND );
 400     text.psz_string = _("Always on top");
 401     var_Change( p_vout, "video-on-top", VLC_VAR_SETTEXT, &text, NULL );
 402     var_AddCallback( p_vout, "video-on-top", OnTopCallback, NULL );
 403
 404     /* Add a variable to indicate whether we want window decoration or not */
 405     var_Create( p_vout, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 406
 407     /* Add a fullscreen variable */
 408     if( var_CreateGetBoolCommand( p_vout, "fullscreen" ) )
 409     {
 410         /* user requested fullscreen */
 411         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 412     }
 413     text.psz_string = _("Fullscreen");
 414     var_Change( p_vout, "fullscreen", VLC_VAR_SETTEXT, &text, NULL );
 415     var_AddCallback( p_vout, "fullscreen", FullscreenCallback, NULL );
 416
 417     /* Add a snapshot variable */
 418     var_Create( p_vout, "video-snapshot", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
 419     text.psz_string = _("Snapshot");
 420     var_Change( p_vout, "video-snapshot", VLC_VAR_SETTEXT, &text, NULL );
 421     var_AddCallback( p_vout, "video-snapshot", SnapshotCallback, NULL );
 422
 423     /* Mouse coordinates */
 424     var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
 425     var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
 426     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 427     var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
 428     var_Create( p_vout, "mouse-clicked", VLC_VAR_INTEGER );
 429
 430     var_Create( p_vout, "intf-change", VLC_VAR_BOOL );
 431     var_SetBool( p_vout, "intf-change", true );
 432 }
 433
 434 /*****************************************************************************
 435  * vout_Snapshot: generates a snapshot.
 436  *****************************************************************************/
 437 int vout_Snapshot( vout_thread_t *p_vout, picture_t *p_pic )
 438 {
 439     image_handler_t *p_image = image_HandlerCreate( p_vout );
 440     video_format_t fmt_in, fmt_out;
 441     char *psz_filename = NULL;
 442     subpicture_t *p_subpic;
 443     picture_t *p_pif;
 444     vlc_value_t val, format;
 445     DIR *path;
 446     int i_ret;
 447
 448     memset( &fmt_in, 0, sizeof(video_format_t) );
 449     memset( &fmt_out, 0, sizeof(video_format_t) );
 450
 451     var_Get( p_vout, "snapshot-path", &val );
 452     if( val.psz_string && !*val.psz_string )
 453     {
 454         free( val.psz_string );
 455         val.psz_string = 0;
 456     }
 457
 458     /* Embedded snapshot : if snapshot-path == object:object-id, then
 459        create a snapshot_t* and store it in
 460        object(object-id)->p_private, then unlock and signal the
 461        waiting object.
 462      */
 463     if( val.psz_string && !strncmp( val.psz_string, "object:", 7 ) )
 464     {
 465         int i_id;
 466         vlc_object_t* p_dest;
 467         block_t *p_block;
 468         snapshot_t *p_snapshot;
 469         int i_size;
 470
 471         /* Destination object-id is following object: */
 472         i_id = atoi( &val.psz_string[7] );
 473         p_dest = ( vlc_object_t* )vlc_object_get( i_id );
 474         if( !p_dest )
 475         {
 476             msg_Err( p_vout, "Cannot find calling object" );
 477             image_HandlerDelete( p_image );
 478             return VLC_EGENERIC;
 479         }
 480         /* Object must be locked. We will unlock it once we get the
 481            snapshot and written it to p_private */
 482         p_dest->p_private = NULL;
 483
 484         /* Save the snapshot to a memory zone */
 485         fmt_in = p_vout->fmt_in;
 486         fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
 487         fmt_out.i_width = var_GetInteger( p_vout, "snapshot-width" );
 488         fmt_out.i_height = var_GetInteger( p_vout, "snapshot-height" );
 489         fmt_out.i_chroma = VLC_FOURCC( 'p','n','g',' ' );
 490
 491         p_block = ( block_t* ) image_Write( p_image, p_pic, &fmt_in, &fmt_out );
 492         if( !p_block )
 493         {
 494             msg_Err( p_vout, "Could not get snapshot" );
 495             image_HandlerDelete( p_image );
 496             vlc_object_signal_maybe( VLC_OBJECT(p_dest) );
 497             vlc_object_release( p_dest );
 498             return VLC_EGENERIC;
 499         }
 500
 501         /* Copy the p_block data to a snapshot structure */
 502         /* FIXME: get the timestamp */
 503         p_snapshot = ( snapshot_t* ) malloc( sizeof( snapshot_t ) );
 504         if( !p_snapshot )
 505         {
 506             block_Release( p_block );
 507             image_HandlerDelete( p_image );
 508             vlc_object_signal_maybe( VLC_OBJECT(p_dest) );
 509             vlc_object_release( p_dest );
 510             return VLC_ENOMEM;
 511         }
 512
 513         i_size = p_block->i_buffer;
 514
 515         p_snapshot->i_width = fmt_out.i_width;
 516         p_snapshot->i_height = fmt_out.i_height;
 517         p_snapshot->i_datasize = i_size;
 518         p_snapshot->date = p_block->i_pts; /* FIXME ?? */
 519         p_snapshot->p_data = ( char* ) malloc( i_size );
 520         if( !p_snapshot->p_data )
 521         {
 522             block_Release( p_block );
 523             free( p_snapshot );
 524             image_HandlerDelete( p_image );
 525             vlc_object_signal_maybe( VLC_OBJECT(p_dest) );
 526             vlc_object_release( p_dest );
 527             return VLC_ENOMEM;
 528         }
 529         memcpy( p_snapshot->p_data, p_block->p_buffer, p_block->i_buffer );
 530
 531         p_dest->p_private = p_snapshot;
 532
 533         block_Release( p_block );
 534
 535         /* Unlock the object */
 536         vlc_object_signal_maybe( VLC_OBJECT(p_dest) );
 537         vlc_object_release( p_dest );
 538
 539         image_HandlerDelete( p_image );
 540         return VLC_SUCCESS;
 541     }
 542
 543 #if defined(__APPLE__) || defined(SYS_BEOS)
 544     if( !val.psz_string )
 545     {
 546         if( asprintf( &val.psz_string, "%s/Desktop",
 547                       config_GetHomeDir() ) == -1 )
 548             val.psz_string = NULL;
 549     }
 550
 551 #elif defined(WIN32) && !defined(UNDER_CE)
 552     if( !val.psz_string )
 553     {
 554         /* Get the My Pictures folder path */
 555
 556         char *p_mypicturesdir = NULL;
 557         typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
 558                                                    LPWSTR );
 559         #ifndef CSIDL_FLAG_CREATE
 560         #   define CSIDL_FLAG_CREATE 0x8000
 561         #endif
 562         #ifndef CSIDL_MYPICTURES
 563         #   define CSIDL_MYPICTURES 0x27
 564         #endif
 565         #ifndef SHGFP_TYPE_CURRENT
 566         #   define SHGFP_TYPE_CURRENT 0
 567         #endif
 568
 569         HINSTANCE shfolder_dll;
 570         SHGETFOLDERPATH SHGetFolderPath ;
 571
 572         /* load the shfolder dll to retrieve SHGetFolderPath */
 573         if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
 574         {
 575            wchar_t wdir[PATH_MAX];
 576            SHGetFolderPath = (void *)GetProcAddress( shfolder_dll,
 577                                                       _T("SHGetFolderPathW") );
 578             if ((SHGetFolderPath != NULL )
 579              && SUCCEEDED (SHGetFolderPath (NULL,
 580                                            CSIDL_MYPICTURES | CSIDL_FLAG_CREATE,
 581                                            NULL, SHGFP_TYPE_CURRENT,
 582                                            wdir)))
 583                 p_mypicturesdir = FromWide (wdir);
 584
 585             FreeLibrary( shfolder_dll );
 586         }
 587
 588         if( p_mypicturesdir == NULL )
 589         {
 590             if( asprintf( &val.psz_string, "%s", config_GetHomeDir() ) == -1 )
 591                 val.psz_string = NULL;
 592         }
 593         else
 594         {
 595             if( asprintf( &val.psz_string, p_mypicturesdir ) == -1 )
 596                 val.psz_string = NULL;
 597             free( p_mypicturesdir );
 598         }
 599     }
 600
 601 #else
 602     /* XXX: This saves in the data directory. Shouldn't we try saving
 603      *      to psz_homedir/Desktop or something nicer ? */
 604     char *psz_datadir = config_GetUserDataDir();
 605     if( !val.psz_string && psz_datadir )
 606     {
 607         if( asprintf( &val.psz_string, "%s", psz_datadir ) == -1 )
 608             val.psz_string = NULL;
 609     }
 610     free( psz_datadir );
 611 #endif
 612
 613     if( !val.psz_string )
 614     {
 615         msg_Err( p_vout, "no path specified for snapshots" );
 616         image_HandlerDelete( p_image );
 617         return VLC_EGENERIC;
 618     }
 619     var_Get( p_vout, "snapshot-format", &format );
 620     if( !format.psz_string || !*format.psz_string )
 621     {
 622         free( format.psz_string );
 623         format.psz_string = strdup( "png" );
 624     }
 625
 626     /*
 627      * Did the user specify a directory? If not, path = NULL.
 628      */
 629     path = utf8_opendir ( (const char *)val.psz_string  );
 630     if( path != NULL )
 631     {
 632         char *psz_prefix = var_GetNonEmptyString( p_vout, "snapshot-prefix" );
 633         if( psz_prefix == NULL )
 634             psz_prefix = strdup( "vlcsnap-" );
 635         else
 636         {
 637             char *psz_tmp = str_format( p_vout, psz_prefix );
 638             filename_sanitize( psz_tmp );
 639             free( psz_prefix );
 640             psz_prefix = psz_tmp;
 641         }
 642
 643         closedir( path );
 644         if( var_GetBool( p_vout, "snapshot-sequential" ) == true )
 645         {
 646             int i_num = var_GetInteger( p_vout, "snapshot-num" );
 647             FILE *p_file;
 648             do
 649             {
 650                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%05d.%s",
 651                               val.psz_string, psz_prefix, i_num++,
 652                               format.psz_string ) == -1 )
 653                 {
 654                     msg_Err( p_vout, "could not create snapshot" );
 655                     image_HandlerDelete( p_image );
 656                     return VLC_EGENERIC;
 657                 }
 658             }
 659             while( ( p_file = utf8_fopen( psz_filename, "r" ) ) && !fclose( p_file ) );
 660             var_SetInteger( p_vout, "snapshot-num", i_num );
 661         }
 662         else
 663         {
 664             if( asprintf( &psz_filename, "%s" DIR_SEP "%s%u.%s",
 665                           val.psz_string, psz_prefix,
 666                           (unsigned int)(p_pic->date / 100000) & 0xFFFFFF,
 667                           format.psz_string ) == -1 )
 668             {
 669                 msg_Err( p_vout, "could not create snapshot" );
 670                 image_HandlerDelete( p_image );
 671                 return VLC_EGENERIC;
 672             }
 673         }
 674
 675         free( psz_prefix );
 676     }
 677     else // The user specified a full path name (including file name)
 678     {
 679         psz_filename = str_format( p_vout, val.psz_string );
 680         path_sanitize( psz_filename );
 681     }
 682
 683     free( val.psz_string );
 684     free( format.psz_string );
 685
 686     fmt_out.i_width = var_GetInteger( p_vout, "snapshot-width" );
 687     fmt_out.i_height = var_GetInteger( p_vout, "snapshot-height" );
 688
 689     fmt_in = p_vout->fmt_in;
 690
 691     if( fmt_out.i_width == 0 && fmt_out.i_height > 0 )
 692     {
 693         fmt_out.i_width = (fmt_in.i_width * fmt_out.i_height) / fmt_in.i_height;
 694     }
 695     else if( fmt_out.i_height == 0 && fmt_out.i_width > 0 )
 696     {
 697         fmt_out.i_height = (fmt_in.i_height * fmt_out.i_width) / fmt_in.i_width;
 698     }
 699     else
 700     {
 701         fmt_out.i_width = fmt_in.i_width;
 702         fmt_out.i_height = fmt_in.i_height;
 703     }
 704
 705     /* Save the snapshot */
 706     fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
 707     i_ret = image_WriteUrl( p_image, p_pic, &fmt_in, &fmt_out, psz_filename );
 708     if( i_ret != VLC_SUCCESS )
 709     {
 710         msg_Err( p_vout, "could not create snapshot %s", psz_filename );
 711         free( psz_filename );
 712         image_HandlerDelete( p_image );
 713         return VLC_EGENERIC;
 714     }
 715
 716     msg_Dbg( p_vout, "snapshot taken (%s)", psz_filename );
 717     vout_OSDMessage( VLC_OBJECT( p_vout ), DEFAULT_CHAN,
 718                      "%s", psz_filename );
 719     free( psz_filename );
 720
 721     if( var_GetBool( p_vout, "snapshot-preview" ) )
 722     {
 723         /* Inject a subpicture with the snapshot */
 724         memset( &fmt_out, 0, sizeof(fmt_out) );
 725         fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
 726         p_pif = image_Convert( p_image, p_pic, &fmt_in, &fmt_out );
 727         image_HandlerDelete( p_image );
 728         if( !p_pif ) return VLC_EGENERIC;
 729
 730         p_subpic = spu_CreateSubpicture( p_vout->p_spu );
 731         if( p_subpic == NULL )
 732         {
 733              p_pif->pf_release( p_pif );
 734              return VLC_EGENERIC;
 735         }
 736
 737         p_subpic->i_channel = 0;
 738         p_subpic->i_start = mdate();
 739         p_subpic->i_stop = mdate() + 4000000;
 740         p_subpic->b_ephemer = true;
 741         p_subpic->b_fade = true;
 742         p_subpic->i_original_picture_width = p_vout->render.i_width * 4;
 743         p_subpic->i_original_picture_height = p_vout->render.i_height * 4;
 744
 745         p_subpic->p_region = spu_CreateRegion( p_vout->p_spu, &fmt_out );
 746         vout_CopyPicture( p_image->p_parent, &p_subpic->p_region->picture,
 747                           p_pif );
 748         p_pif->pf_release( p_pif );
 749
 750         spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
 751     }
 752     else
 753     {
 754         image_HandlerDelete( p_image );
 755     }
 756
 757     return VLC_SUCCESS;
 758 }
 759
 760 /*****************************************************************************
 761  * Handle filters
 762  *****************************************************************************/
 763
 764 void vout_EnableFilter( vout_thread_t *p_vout, char *psz_name,
 765                         bool b_add, bool b_setconfig )
 766 {
 767     char *psz_parser;
 768     char *psz_string = config_GetPsz( p_vout, "vout-filter" );
 769
 770     /* Todo : Use some generic chain manipulation functions */
 771     if( !psz_string ) psz_string = strdup("");
 772
 773     psz_parser = strstr( psz_string, psz_name );
 774     if( b_add )
 775     {
 776         if( !psz_parser )
 777         {
 778             psz_parser = psz_string;
 779             if( asprintf( &psz_string, (*psz_string) ? "%s:%s" : "%s%s",
 780                           psz_string, psz_name ) == -1 )
 781             {
 782                 free( psz_parser );
 783                 return;
 784             }
 785             free( psz_parser );
 786         }
 787         else
 788             return;
 789     }
 790     else
 791     {
 792         if( psz_parser )
 793         {
 794             memmove( psz_parser, psz_parser + strlen(psz_name) +
 795                             (*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ),
 796                             strlen(psz_parser + strlen(psz_name)) + 1 );
 797
 798             /* Remove trailing : : */
 799             if( *(psz_string+strlen(psz_string ) -1 ) == ':' )
 800             {
 801                 *(psz_string+strlen(psz_string ) -1 ) = '\0';
 802             }
 803          }
 804          else
 805          {
 806              free( psz_string );
 807              return;
 808          }
 809     }
 810     if( b_setconfig )
 811         config_PutPsz( p_vout, "vout-filter", psz_string );
 812
 813     var_SetString( p_vout, "vout-filter", psz_string );
 814     free( psz_string );
 815 }
 816
 817 /*****************************************************************************
 818  * vout_ControlDefault: default methods for video output control.
 819  *****************************************************************************/
 820 int vout_vaControlDefault( vout_thread_t *p_vout, int i_query, va_list args )
 821 {
 822     (void)args;
 823     switch( i_query )
 824     {
 825     case VOUT_REPARENT:
 826     case VOUT_CLOSE:
 827         vout_ReleaseWindow( p_vout, NULL );
 828         return VLC_SUCCESS;
 829
 830     case VOUT_SNAPSHOT:
 831         p_vout->b_snapshot = true;
 832         return VLC_SUCCESS;
 833
 834     default:
 835         msg_Dbg( p_vout, "control query not supported" );
 836     }
 837     return VLC_EGENERIC;
 838 }
 839
 840 /*****************************************************************************
 841  * InitWindowSize: find the initial dimensions the video window should have.
 842  *****************************************************************************
 843  * This function will check the "width", "height" and "zoom" config options and
 844  * will calculate the size that the video window should have.
 845  *****************************************************************************/
 846 static void InitWindowSize( vout_thread_t *p_vout, unsigned *pi_width,
 847                             unsigned *pi_height )
 848 {
 849     vlc_value_t val;
 850     int i_width, i_height;
 851     uint64_t ll_zoom;
 852
 853 #define FP_FACTOR 1000                             /* our fixed point factor */
 854
 855     var_Get( p_vout, "width", &val );
 856     i_width = val.i_int;
 857     var_Get( p_vout, "height", &val );
 858     i_height = val.i_int;
 859     var_Get( p_vout, "zoom", &val );
 860     ll_zoom = (uint64_t)( FP_FACTOR * val.f_float );
 861
 862     if( i_width > 0 && i_height > 0)
 863     {
 864         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 865         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 866         goto initwsize_end;
 867     }
 868     else if( i_width > 0 )
 869     {
 870         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 871         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 872             p_vout->fmt_in.i_sar_den * i_width / p_vout->fmt_in.i_sar_num /
 873             FP_FACTOR / p_vout->fmt_in.i_visible_width );
 874         goto initwsize_end;
 875     }
 876     else if( i_height > 0 )
 877     {
 878         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 879         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 880             p_vout->fmt_in.i_sar_num * i_height / p_vout->fmt_in.i_sar_den /
 881             FP_FACTOR / p_vout->fmt_in.i_visible_height );
 882         goto initwsize_end;
 883     }
 884
 885     if( p_vout->fmt_in.i_sar_num == 0 || p_vout->fmt_in.i_sar_den == 0 ) {
 886         msg_Warn( p_vout, "fucked up aspect" );
 887         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom / FP_FACTOR );
 888         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom /FP_FACTOR);
 889     }
 890     else if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
 891     {
 892         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 893             p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den / FP_FACTOR );
 894         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom
 895             / FP_FACTOR );
 896     }
 897     else
 898     {
 899         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom
 900             / FP_FACTOR );
 901         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 902             p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num / FP_FACTOR );
 903     }
 904
 905 initwsize_end:
 906     msg_Dbg( p_vout, "window size: %dx%d", p_vout->i_window_width,
 907              p_vout->i_window_height );
 908
 909 #undef FP_FACTOR
 910 }
 911
 912 /*****************************************************************************
 913  * Object variables callbacks
 914  *****************************************************************************/
 915 static int ZoomCallback( vlc_object_t *p_this, char const *psz_cmd,
 916                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 917 {
 918     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 919     (void)psz_cmd; (void)oldval; (void)newval; (void)p_data;
 920     InitWindowSize( p_vout, &p_vout->i_window_width,
 921                     &p_vout->i_window_height );
 922     vout_Control( p_vout, VOUT_SET_SIZE, p_vout->i_window_width,
 923                   p_vout->i_window_height );
 924     return VLC_SUCCESS;
 925 }
 926
 927 static int CropCallback( vlc_object_t *p_this, char const *psz_cmd,
 928                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 929 {
 930     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 931     int64_t i_aspect_num, i_aspect_den;
 932     unsigned int i_width, i_height;
 933
 934     (void)oldval; (void)p_data;
 935
 936     /* Restore defaults */
 937     p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset;
 938     p_vout->fmt_in.i_visible_width = p_vout->fmt_render.i_visible_width;
 939     p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset;
 940     p_vout->fmt_in.i_visible_height = p_vout->fmt_render.i_visible_height;
 941
 942     if( !strcmp( psz_cmd, "crop" ) )
 943     {
 944         char *psz_end = NULL, *psz_parser = strchr( newval.psz_string, ':' );
 945         if( psz_parser )
 946         {
 947             /* We're using the 3:4 syntax */
 948             i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
 949             if( psz_end == newval.psz_string || !i_aspect_num ) goto crop_end;
 950
 951             i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
 952             if( psz_end == psz_parser || !i_aspect_den ) goto crop_end;
 953
 954             i_width = p_vout->fmt_in.i_sar_den*p_vout->fmt_render.i_visible_height *
 955                 i_aspect_num / i_aspect_den / p_vout->fmt_in.i_sar_num;
 956             i_height = p_vout->fmt_render.i_visible_width*p_vout->fmt_in.i_sar_num *
 957                 i_aspect_den / i_aspect_num / p_vout->fmt_in.i_sar_den;
 958
 959             if( i_width < p_vout->fmt_render.i_visible_width )
 960             {
 961                 p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset +
 962                     (p_vout->fmt_render.i_visible_width - i_width) / 2;
 963                 p_vout->fmt_in.i_visible_width = i_width;
 964             }
 965             else
 966             {
 967                 p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset +
 968                     (p_vout->fmt_render.i_visible_height - i_height) / 2;
 969                 p_vout->fmt_in.i_visible_height = i_height;
 970             }
 971         }
 972         else
 973         {
 974             psz_parser = strchr( newval.psz_string, 'x' );
 975             if( psz_parser )
 976             {
 977                 /* Maybe we're using the <width>x<height>+<left>+<top> syntax */
 978                 unsigned int i_crop_width, i_crop_height, i_crop_top, i_crop_left;
 979
 980                 i_crop_width = strtol( newval.psz_string, &psz_end, 10 );
 981                 if( psz_end != psz_parser ) goto crop_end;
 982
 983                 psz_parser = strchr( ++psz_end, '+' );
 984                 i_crop_height = strtol( psz_end, &psz_end, 10 );
 985                 if( psz_end != psz_parser ) goto crop_end;
 986
 987                 psz_parser = strchr( ++psz_end, '+' );
 988                 i_crop_left = strtol( psz_end, &psz_end, 10 );
 989                 if( psz_end != psz_parser ) goto crop_end;
 990
 991                 psz_end++;
 992                 i_crop_top = strtol( psz_end, &psz_end, 10 );
 993                 if( *psz_end != '\0' ) goto crop_end;
 994
 995                 i_width = i_crop_width;
 996                 p_vout->fmt_in.i_visible_width = i_width;
 997
 998                 i_height = i_crop_height;
 999                 p_vout->fmt_in.i_visible_height = i_height;
1000
1001                 p_vout->fmt_in.i_x_offset = i_crop_left;
1002                 p_vout->fmt_in.i_y_offset = i_crop_top;
1003             }
1004             else
1005             {
1006                 /* Maybe we're using the <left>+<top>+<right>+<bottom> syntax */
1007                 unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1008
1009                 psz_parser = strchr( newval.psz_string, '+' );
1010                 i_crop_left = strtol( newval.psz_string, &psz_end, 10 );
1011                 if( psz_end != psz_parser ) goto crop_end;
1012
1013                 psz_parser = strchr( ++psz_end, '+' );
1014                 i_crop_top = strtol( psz_end, &psz_end, 10 );
1015                 if( psz_end != psz_parser ) goto crop_end;
1016
1017                 psz_parser = strchr( ++psz_end, '+' );
1018                 i_crop_right = strtol( psz_end, &psz_end, 10 );
1019                 if( psz_end != psz_parser ) goto crop_end;
1020
1021                 psz_end++;
1022                 i_crop_bottom = strtol( psz_end, &psz_end, 10 );
1023                 if( *psz_end != '\0' ) goto crop_end;
1024
1025                 i_width = p_vout->fmt_render.i_visible_width
1026                           - i_crop_left - i_crop_right;
1027                 p_vout->fmt_in.i_visible_width = i_width;
1028
1029                 i_height = p_vout->fmt_render.i_visible_height
1030                            - i_crop_top - i_crop_bottom;
1031                 p_vout->fmt_in.i_visible_height = i_height;
1032
1033                 p_vout->fmt_in.i_x_offset = i_crop_left;
1034                 p_vout->fmt_in.i_y_offset = i_crop_top;
1035             }
1036         }
1037     }
1038     else if( !strcmp( psz_cmd, "crop-top" )
1039           || !strcmp( psz_cmd, "crop-left" )
1040           || !strcmp( psz_cmd, "crop-bottom" )
1041           || !strcmp( psz_cmd, "crop-right" ) )
1042     {
1043         unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1044
1045         i_crop_top = var_GetInteger( p_vout, "crop-top" );
1046         i_crop_left = var_GetInteger( p_vout, "crop-left" );
1047         i_crop_right = var_GetInteger( p_vout, "crop-right" );
1048         i_crop_bottom = var_GetInteger( p_vout, "crop-bottom" );
1049
1050         i_width = p_vout->fmt_render.i_visible_width
1051                   - i_crop_left - i_crop_right;
1052         p_vout->fmt_in.i_visible_width = i_width;
1053
1054         i_height = p_vout->fmt_render.i_visible_height
1055                    - i_crop_top - i_crop_bottom;
1056         p_vout->fmt_in.i_visible_height = i_height;
1057
1058         p_vout->fmt_in.i_x_offset = i_crop_left;
1059         p_vout->fmt_in.i_y_offset = i_crop_top;
1060     }
1061
1062  crop_end:
1063     InitWindowSize( p_vout, &p_vout->i_window_width,
1064                     &p_vout->i_window_height );
1065
1066     p_vout->i_changes |= VOUT_CROP_CHANGE;
1067
1068     msg_Dbg( p_vout, "cropping picture %ix%i to %i,%i,%ix%i",
1069              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
1070              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
1071              p_vout->fmt_in.i_visible_width,
1072              p_vout->fmt_in.i_visible_height );
1073
1074     var_SetVoid( p_vout, "crop-update" );
1075
1076     return VLC_SUCCESS;
1077 }
1078
1079 static int AspectCallback( vlc_object_t *p_this, char const *psz_cmd,
1080                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1081 {
1082     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1083     unsigned int i_aspect_num, i_aspect_den, i_sar_num, i_sar_den;
1084     vlc_value_t val;
1085
1086     char *psz_end, *psz_parser = strchr( newval.psz_string, ':' );
1087     (void)psz_cmd; (void)oldval; (void)p_data;
1088
1089     /* Restore defaults */
1090     p_vout->fmt_in.i_sar_num = p_vout->fmt_render.i_sar_num;
1091     p_vout->fmt_in.i_sar_den = p_vout->fmt_render.i_sar_den;
1092     p_vout->fmt_in.i_aspect = p_vout->fmt_render.i_aspect;
1093     p_vout->render.i_aspect = p_vout->fmt_render.i_aspect;
1094
1095     if( !psz_parser ) goto aspect_end;
1096
1097     i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
1098     if( psz_end == newval.psz_string || !i_aspect_num ) goto aspect_end;
1099
1100     i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
1101     if( psz_end == psz_parser || !i_aspect_den ) goto aspect_end;
1102
1103     i_sar_num = i_aspect_num * p_vout->fmt_render.i_visible_height;
1104     i_sar_den = i_aspect_den * p_vout->fmt_render.i_visible_width;
1105     vlc_ureduce( &i_sar_num, &i_sar_den, i_sar_num, i_sar_den, 0 );
1106     p_vout->fmt_in.i_sar_num = i_sar_num;
1107     p_vout->fmt_in.i_sar_den = i_sar_den;
1108     p_vout->fmt_in.i_aspect = i_aspect_num * VOUT_ASPECT_FACTOR / i_aspect_den;
1109     p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1110
1111  aspect_end:
1112     if( p_vout->i_par_num && p_vout->i_par_den )
1113     {
1114         p_vout->fmt_in.i_sar_num *= p_vout->i_par_den;
1115         p_vout->fmt_in.i_sar_den *= p_vout->i_par_num;
1116         p_vout->fmt_in.i_aspect = p_vout->fmt_in.i_aspect *
1117             p_vout->i_par_den / p_vout->i_par_num;
1118         p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1119     }
1120
1121     p_vout->i_changes |= VOUT_ASPECT_CHANGE;
1122
1123     vlc_ureduce( &i_aspect_num, &i_aspect_den,
1124                  p_vout->fmt_in.i_aspect, VOUT_ASPECT_FACTOR, 0 );
1125     msg_Dbg( p_vout, "new aspect-ratio %i:%i, sample aspect-ratio %i:%i",
1126              i_aspect_num, i_aspect_den,
1127              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den );
1128
1129     if( var_Get( p_vout, "crop", &val ) )
1130         return VLC_EGENERIC;
1131
1132     int i_ret = CropCallback( p_this, "crop", val, val, 0 );
1133     free( val.psz_string );
1134     return i_ret;
1135 }
1136
1137 static int OnTopCallback( vlc_object_t *p_this, char const *psz_cmd,
1138                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1139 {
1140     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1141     vout_Control( p_vout, VOUT_SET_STAY_ON_TOP, newval.b_bool );
1142     (void)psz_cmd; (void)oldval; (void)p_data;
1143
1144     /* Modify libvlc as well because the vout might have to be restarted */
1145     var_Create( p_vout->p_libvlc, "video-on-top", VLC_VAR_BOOL );
1146     var_Set( p_vout->p_libvlc, "video-on-top", newval );
1147
1148     return VLC_SUCCESS;
1149 }
1150
1151 static int FullscreenCallback( vlc_object_t *p_this, char const *psz_cmd,
1152                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1153 {
1154     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1155     vlc_value_t val;
1156     (void)psz_cmd; (void)oldval; (void)p_data;
1157
1158     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
1159
1160     /* Modify libvlc as well because the vout might have to be restarted */
1161     var_Create( p_vout->p_libvlc, "fullscreen", VLC_VAR_BOOL );
1162     var_Set( p_vout->p_libvlc, "fullscreen", newval );
1163
1164     val.b_bool = true;
1165     var_Set( p_vout, "intf-change", val );
1166     return VLC_SUCCESS;
1167 }
1168
1169 static int SnapshotCallback( vlc_object_t *p_this, char const *psz_cmd,
1170                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1171 {
1172     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1173     VLC_UNUSED(newval); VLC_UNUSED(p_data);
1174     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1175     vout_Control( p_vout, VOUT_SNAPSHOT );
1176     return VLC_SUCCESS;
1177 }
1178
1179 static int TitleShowCallback( vlc_object_t *p_this, char const *psz_cmd,
1180                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1181 {
1182     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1183     VLC_UNUSED(p_data);
1184     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1185     p_vout->b_title_show = newval.b_bool;
1186     return VLC_SUCCESS;
1187 }
1188
1189 static int TitleTimeoutCallback( vlc_object_t *p_this, char const *psz_cmd,
1190                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1191 {
1192     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1193     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1194     p_vout->i_title_timeout = (mtime_t) newval.i_int;
1195     return VLC_SUCCESS;
1196 }
1197
1198 static int TitlePositionCallback( vlc_object_t *p_this, char const *psz_cmd,
1199                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1200 {
1201     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1202     VLC_UNUSED(p_data);
1203     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1204     p_vout->i_title_position = newval.i_int;
1205     return VLC_SUCCESS;
1206 }