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

   1 /*****************************************************************************
   2  * vout_intf.c : video output interface
   3  *****************************************************************************
   4  * Copyright (C) 2000-2007 the VideoLAN team
   5  *
   6  * Authors: Gildas Bazin <gbazin@videolan.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32
  33 #include <stdio.h>
  34 #include <stdlib.h>                                                /* free() */
  35 #include <sys/types.h>                                          /* opendir() */
  36 #include <sys/stat.h>
  37 #include <dirent.h>                                             /* opendir() */
  38 #include <assert.h>
  39 #include <time.h>                                           /* strftime */
  40
  41 #include <vlc_interface.h>
  42 #include <vlc_block.h>
  43 #include <vlc_playlist.h>
  44
  45 #include <vlc_vout.h>
  46 #include <vlc_window.h>
  47 #include <vlc_image.h>
  48 #include <vlc_osd.h>
  49 #include <vlc_charset.h>
  50
  51 #include <vlc_strings.h>
  52 #include <vlc_charset.h>
  53 #include "../libvlc.h"
  54 #include "vout_internal.h"
  55
  56 /*****************************************************************************
  57  * Local prototypes
  58  *****************************************************************************/
  59 static void InitWindowSize( vout_thread_t *, unsigned *, unsigned * );
  60
  61 /* Object variables callbacks */
  62 static int ZoomCallback( vlc_object_t *, char const *,
  63                          vlc_value_t, vlc_value_t, void * );
  64 static int CropCallback( vlc_object_t *, char const *,
  65                          vlc_value_t, vlc_value_t, void * );
  66 static int AspectCallback( vlc_object_t *, char const *,
  67                            vlc_value_t, vlc_value_t, void * );
  68 static int ScalingCallback( vlc_object_t *, char const *,
  69                             vlc_value_t, vlc_value_t, void * );
  70 static int OnTopCallback( vlc_object_t *, char const *,
  71                           vlc_value_t, vlc_value_t, void * );
  72 static int FullscreenCallback( vlc_object_t *, char const *,
  73                                vlc_value_t, vlc_value_t, void * );
  74 static int SnapshotCallback( vlc_object_t *, char const *,
  75                              vlc_value_t, vlc_value_t, void * );
  76
  77 static int TitleShowCallback( vlc_object_t *, char const *,
  78                               vlc_value_t, vlc_value_t, void * );
  79 static int TitleTimeoutCallback( vlc_object_t *, char const *,
  80                                  vlc_value_t, vlc_value_t, void * );
  81 static int TitlePositionCallback( vlc_object_t *, char const *,
  82                                   vlc_value_t, vlc_value_t, void * );
  83
  84 /**
  85  * Creates a video output window.
  86  * On Unix systems, this is an X11 drawable (handle).
  87  * On Windows, this is a Win32 window (handle).
  88  * Video output plugins are supposed to called this function and display the
  89  * video within the resulting window, while in windowed mode.
  90  *
  91  * @param p_vout video output thread to create a window for
  92  * @param psz_cap VLC module capability (window system type)
  93  * @param pi_x_hint pointer to store the recommended horizontal position [OUT]
  94  * @param pi_y_hint pointer to store the recommended vertical position [OUT]
  95  * @param pi_width_hint pointer to store the recommended width [OUT]
  96  * @param pi_height_hint pointer to store the recommended height [OUT]
  97  *
  98  * @return a vout_window_t object, or NULL in case of failure.
  99  * The window is released with vout_ReleaseWindow().
 100  */
 101 vout_window_t *vout_RequestWindow( vout_thread_t *p_vout, const char *psz_cap,
 102                           int *pi_x_hint, int *pi_y_hint,
 103                           unsigned int *pi_width_hint,
 104                           unsigned int *pi_height_hint )
 105 {
 106     /* Get requested coordinates */
 107     *pi_x_hint = var_GetInteger( p_vout, "video-x" );
 108     *pi_y_hint = var_GetInteger( p_vout, "video-y" );
 109
 110     *pi_width_hint = p_vout->i_window_width;
 111     *pi_height_hint = p_vout->i_window_height;
 112
 113     vout_window_t *wnd = vlc_custom_create (VLC_OBJECT(p_vout), sizeof (*wnd),
 114                                             VLC_OBJECT_GENERIC, "window");
 115     if (wnd == NULL)
 116         return NULL;
 117
 118     wnd->vout = p_vout;
 119     wnd->width = *pi_width_hint;
 120     wnd->height = *pi_height_hint;
 121     wnd->pos_x = *pi_x_hint;
 122     wnd->pos_y = *pi_y_hint;
 123     vlc_object_attach (wnd, p_vout);
 124
 125     wnd->module = module_need (wnd, psz_cap, NULL, false);
 126     if (wnd->module == NULL)
 127     {
 128         msg_Dbg (wnd, "no \"%s\" window provider available", psz_cap);
 129         vlc_object_release (wnd);
 130         return NULL;
 131     }
 132     *pi_width_hint = wnd->width;
 133     *pi_height_hint = wnd->height;
 134     *pi_x_hint = wnd->pos_x;
 135     *pi_y_hint = wnd->pos_y;
 136     return wnd;
 137 }
 138
 139 /**
 140  * Releases a window handle obtained with vout_RequestWindow().
 141  * @param p_vout video output thread that allocated the window
 142  *               (if this is NULL; this fnction is a no-op).
 143  */
 144 void vout_ReleaseWindow( vout_window_t *wnd )
 145 {
 146     if (wnd == NULL)
 147         return;
 148
 149     assert (wnd->module);
 150     module_unneed (wnd, wnd->module);
 151
 152     vlc_object_release (wnd);
 153 }
 154
 155 int vout_ControlWindow( vout_window_t *wnd, int i_query, va_list args )
 156 {
 157     if (wnd == NULL)
 158         return VLC_EGENERIC;
 159
 160     assert (wnd->control);
 161     return wnd->control (wnd, i_query, args);
 162 }
 163
 164 /*****************************************************************************
 165  * vout_IntfInit: called during the vout creation to initialise misc things.
 166  *****************************************************************************/
 167 static const struct
 168 {
 169     double f_value;
 170     const char *psz_label;
 171 } p_zoom_values[] = {
 172     { 0.25, N_("1:4 Quarter") },
 173     { 0.5, N_("1:2 Half") },
 174     { 1, N_("1:1 Original") },
 175     { 2, N_("2:1 Double") },
 176     { 0, NULL } };
 177
 178 static const struct
 179 {
 180     const char *psz_value;
 181     const char *psz_label;
 182 } p_crop_values[] = {
 183     { "", N_("Default") },
 184     { "16:10", "16:10" },
 185     { "16:9", "16:9" },
 186     { "185:100", "1.85:1" },
 187     { "221:100", "2.21:1" },
 188     { "235:100", "2.35:1" },
 189     { "239:100", "2.39:1" },
 190     { "5:3", "5:3" },
 191     { "4:3", "4:3" },
 192     { "5:4", "5:4" },
 193     { "1:1", "1:1" },
 194     { NULL, NULL } };
 195
 196 static const struct
 197 {
 198     const char *psz_value;
 199     const char *psz_label;
 200 } p_aspect_ratio_values[] = {
 201     { "", N_("Default") },
 202     { "1:1", "1:1" },
 203     { "4:3", "4:3" },
 204     { "16:9", "16:9" },
 205     { "16:10", "16:10" },
 206     { "221:100", "2.21:1" },
 207     { "5:4", "5:4" },
 208     { NULL, NULL } };
 209
 210 static void AddCustomRatios( vout_thread_t *p_vout, const char *psz_var,
 211                              char *psz_list )
 212 {
 213     if( psz_list && *psz_list )
 214     {
 215         char *psz_cur = psz_list;
 216         char *psz_next;
 217         while( psz_cur && *psz_cur )
 218         {
 219             vlc_value_t val, text;
 220             psz_next = strchr( psz_cur, ',' );
 221             if( psz_next )
 222             {
 223                 *psz_next = '\0';
 224                 psz_next++;
 225             }
 226             val.psz_string = psz_cur;
 227             text.psz_string = psz_cur;
 228             var_Change( p_vout, psz_var, VLC_VAR_ADDCHOICE, &val, &text);
 229             psz_cur = psz_next;
 230         }
 231     }
 232 }
 233
 234 void vout_IntfInit( vout_thread_t *p_vout )
 235 {
 236     vlc_value_t val, text, old_val;
 237     bool b_force_par = false;
 238     char *psz_buf;
 239     int i;
 240
 241     /* Create a few object variables we'll need later on */
 242     var_Create( p_vout, "snapshot-path", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 243     var_Create( p_vout, "snapshot-prefix", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 244     var_Create( p_vout, "snapshot-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 245     var_Create( p_vout, "snapshot-preview", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 246     var_Create( p_vout, "snapshot-sequential",
 247                 VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 248     var_Create( p_vout, "snapshot-num", VLC_VAR_INTEGER );
 249     var_SetInteger( p_vout, "snapshot-num", 1 );
 250     var_Create( p_vout, "snapshot-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 251     var_Create( p_vout, "snapshot-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 252
 253     var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 254     var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 255     p_vout->i_alignment = var_CreateGetInteger( p_vout, "align" );
 256
 257     var_Create( p_vout, "video-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 258     var_Create( p_vout, "video-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 259
 260     var_Create( p_vout, "mouse-hide-timeout",
 261                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 262
 263     p_vout->p->b_title_show = var_CreateGetBool( p_vout, "video-title-show" );
 264     p_vout->p->i_title_timeout =
 265         (mtime_t)var_CreateGetInteger( p_vout, "video-title-timeout" );
 266     p_vout->p->i_title_position =
 267         var_CreateGetInteger( p_vout, "video-title-position" );
 268     p_vout->p->psz_title =  NULL;
 269
 270     var_AddCallback( p_vout, "video-title-show", TitleShowCallback, NULL );
 271     var_AddCallback( p_vout, "video-title-timeout", TitleTimeoutCallback, NULL );
 272     var_AddCallback( p_vout, "video-title-position", TitlePositionCallback, NULL );
 273
 274     /* Zoom object var */
 275     var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_ISCOMMAND |
 276                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 277
 278     text.psz_string = _("Zoom");
 279     var_Change( p_vout, "zoom", VLC_VAR_SETTEXT, &text, NULL );
 280
 281     var_Get( p_vout, "zoom", &old_val );
 282
 283     for( i = 0; p_zoom_values[i].f_value; i++ )
 284     {
 285         if( old_val.f_float == p_zoom_values[i].f_value )
 286             var_Change( p_vout, "zoom", VLC_VAR_DELCHOICE, &old_val, NULL );
 287         val.f_float = p_zoom_values[i].f_value;
 288         text.psz_string = _( p_zoom_values[i].psz_label );
 289         var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text );
 290     }
 291
 292     var_Set( p_vout, "zoom", old_val ); /* Is this really needed? */
 293
 294     var_AddCallback( p_vout, "zoom", ZoomCallback, NULL );
 295
 296     /* Crop offset vars */
 297     var_Create( p_vout, "crop-left", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 298     var_Create( p_vout, "crop-top", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 299     var_Create( p_vout, "crop-right", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 300     var_Create( p_vout, "crop-bottom", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
 301
 302     var_AddCallback( p_vout, "crop-left", CropCallback, NULL );
 303     var_AddCallback( p_vout, "crop-top", CropCallback, NULL );
 304     var_AddCallback( p_vout, "crop-right", CropCallback, NULL );
 305     var_AddCallback( p_vout, "crop-bottom", CropCallback, NULL );
 306
 307     /* Crop object var */
 308     var_Create( p_vout, "crop", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 309                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 310
 311     text.psz_string = _("Crop");
 312     var_Change( p_vout, "crop", VLC_VAR_SETTEXT, &text, NULL );
 313
 314     val.psz_string = (char*)"";
 315     var_Change( p_vout, "crop", VLC_VAR_DELCHOICE, &val, 0 );
 316
 317     for( i = 0; p_crop_values[i].psz_value; i++ )
 318     {
 319         val.psz_string = (char*)p_crop_values[i].psz_value;
 320         text.psz_string = _( p_crop_values[i].psz_label );
 321         var_Change( p_vout, "crop", VLC_VAR_ADDCHOICE, &val, &text );
 322     }
 323
 324     /* update triggered every time the vout's crop parameters are changed */
 325     var_Create( p_vout, "crop-update", VLC_VAR_VOID );
 326
 327     /* Add custom crop ratios */
 328     psz_buf = config_GetPsz( p_vout, "custom-crop-ratios" );
 329     AddCustomRatios( p_vout, "crop", psz_buf );
 330     free( psz_buf );
 331
 332     var_AddCallback( p_vout, "crop", CropCallback, NULL );
 333     var_Get( p_vout, "crop", &old_val );
 334     if( old_val.psz_string && *old_val.psz_string )
 335         var_TriggerCallback( p_vout, "crop" );
 336     free( old_val.psz_string );
 337
 338     /* Monitor pixel aspect-ratio */
 339     var_Create( p_vout, "monitor-par", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 340     var_Get( p_vout, "monitor-par", &val );
 341     if( val.psz_string && *val.psz_string )
 342     {
 343         char *psz_parser = strchr( val.psz_string, ':' );
 344         unsigned int i_aspect_num = 0, i_aspect_den = 0;
 345         float i_aspect = 0;
 346         if( psz_parser )
 347         {
 348             i_aspect_num = strtol( val.psz_string, 0, 10 );
 349             i_aspect_den = strtol( ++psz_parser, 0, 10 );
 350         }
 351         else
 352         {
 353             i_aspect = atof( val.psz_string );
 354             vlc_ureduce( &i_aspect_num, &i_aspect_den,
 355                          i_aspect *VOUT_ASPECT_FACTOR, VOUT_ASPECT_FACTOR, 0 );
 356         }
 357         if( !i_aspect_num || !i_aspect_den ) i_aspect_num = i_aspect_den = 1;
 358
 359         p_vout->p->i_par_num = i_aspect_num;
 360         p_vout->p->i_par_den = i_aspect_den;
 361
 362         vlc_ureduce( &p_vout->p->i_par_num, &p_vout->p->i_par_den,
 363                      p_vout->p->i_par_num, p_vout->p->i_par_den, 0 );
 364
 365         msg_Dbg( p_vout, "overriding monitor pixel aspect-ratio: %i:%i",
 366                  p_vout->p->i_par_num, p_vout->p->i_par_den );
 367         b_force_par = true;
 368     }
 369     free( val.psz_string );
 370
 371     /* Aspect-ratio object var */
 372     var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_ISCOMMAND |
 373                 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT );
 374
 375     text.psz_string = _("Aspect-ratio");
 376     var_Change( p_vout, "aspect-ratio", VLC_VAR_SETTEXT, &text, NULL );
 377
 378     val.psz_string = (char*)"";
 379     var_Change( p_vout, "aspect-ratio", VLC_VAR_DELCHOICE, &val, 0 );
 380
 381     for( i = 0; p_aspect_ratio_values[i].psz_value; i++ )
 382     {
 383         val.psz_string = (char*)p_aspect_ratio_values[i].psz_value;
 384         text.psz_string = _( p_aspect_ratio_values[i].psz_label );
 385         var_Change( p_vout, "aspect-ratio", VLC_VAR_ADDCHOICE, &val, &text );
 386     }
 387
 388     /* Add custom aspect ratios */
 389     psz_buf = config_GetPsz( p_vout, "custom-aspect-ratios" );
 390     AddCustomRatios( p_vout, "aspect-ratio", psz_buf );
 391     free( psz_buf );
 392
 393     var_AddCallback( p_vout, "aspect-ratio", AspectCallback, NULL );
 394     var_Get( p_vout, "aspect-ratio", &old_val );
 395     if( (old_val.psz_string && *old_val.psz_string) || b_force_par )
 396         var_TriggerCallback( p_vout, "aspect-ratio" );
 397     free( old_val.psz_string );
 398
 399     /* Add variables to manage scaling video */
 400     var_Create( p_vout, "autoscale", VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 401                 | VLC_VAR_ISCOMMAND );
 402     text.psz_string = _("Autoscale video");
 403     var_Change( p_vout, "autoscale", VLC_VAR_SETTEXT, &text, NULL );
 404     var_AddCallback( p_vout, "autoscale", ScalingCallback, NULL );
 405     p_vout->b_autoscale = var_GetBool( p_vout, "autoscale" );
 406
 407     var_Create( p_vout, "scale", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT
 408                 | VLC_VAR_ISCOMMAND );
 409     text.psz_string = _("Scale factor");
 410     var_Change( p_vout, "scale", VLC_VAR_SETTEXT, &text, NULL );
 411     var_AddCallback( p_vout, "scale", ScalingCallback, NULL );
 412     p_vout->i_zoom = (int)( ZOOM_FP_FACTOR * var_GetFloat( p_vout, "scale" ) );
 413
 414     /* Initialize the dimensions of the video window */
 415     InitWindowSize( p_vout, &p_vout->i_window_width,
 416                     &p_vout->i_window_height );
 417
 418     /* Add a variable to indicate if the window should be on top of others */
 419     var_Create( p_vout, "video-on-top", VLC_VAR_BOOL | VLC_VAR_DOINHERIT
 420                 | VLC_VAR_ISCOMMAND );
 421     text.psz_string = _("Always on top");
 422     var_Change( p_vout, "video-on-top", VLC_VAR_SETTEXT, &text, NULL );
 423     var_AddCallback( p_vout, "video-on-top", OnTopCallback, NULL );
 424
 425     /* Add a variable to indicate whether we want window decoration or not */
 426     var_Create( p_vout, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 427
 428     /* Add a fullscreen variable */
 429     if( var_CreateGetBoolCommand( p_vout, "fullscreen" ) )
 430     {
 431         /* user requested fullscreen */
 432         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 433     }
 434     text.psz_string = _("Fullscreen");
 435     var_Change( p_vout, "fullscreen", VLC_VAR_SETTEXT, &text, NULL );
 436     var_AddCallback( p_vout, "fullscreen", FullscreenCallback, NULL );
 437
 438     /* Add a snapshot variable */
 439     var_Create( p_vout, "video-snapshot", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
 440     text.psz_string = _("Snapshot");
 441     var_Change( p_vout, "video-snapshot", VLC_VAR_SETTEXT, &text, NULL );
 442     var_AddCallback( p_vout, "video-snapshot", SnapshotCallback, NULL );
 443
 444     /* Mouse coordinates */
 445     var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
 446     var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
 447     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 448     var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
 449     var_Create( p_vout, "mouse-clicked", VLC_VAR_BOOL );
 450
 451     var_Create( p_vout, "intf-change", VLC_VAR_BOOL );
 452     var_SetBool( p_vout, "intf-change", true );
 453 }
 454
 455 /*****************************************************************************
 456  * vout_Snapshot: generates a snapshot.
 457  *****************************************************************************/
 458 /**
 459  * This function will inject a subpicture into the vout with the provided
 460  * picture
 461  */
 462 static int VoutSnapshotPip( vout_thread_t *p_vout, picture_t *p_pic )
 463 {
 464     subpicture_t *p_subpic = subpicture_NewFromPicture( VLC_OBJECT(p_vout),
 465                                                         p_pic, VLC_CODEC_YUVA );
 466     if( !p_subpic )
 467         return VLC_EGENERIC;
 468
 469     /* FIXME DEFAULT_CHAN is not good (used by the text) but
 470      * hardcoded 0 doesn't seem right */
 471     p_subpic->i_channel = 0;
 472     p_subpic->i_start = mdate();
 473     p_subpic->i_stop  = p_subpic->i_start + 4000000;
 474     p_subpic->b_ephemer = true;
 475     p_subpic->b_fade = true;
 476
 477     /* Reduce the picture to 1/4^2 of the screen */
 478     p_subpic->i_original_picture_width  *= 4;
 479     p_subpic->i_original_picture_height *= 4;
 480
 481     spu_DisplaySubpicture( p_vout->p_spu, p_subpic );
 482     return VLC_SUCCESS;
 483 }
 484 /**
 485  * This function will return the default directory used for snapshots
 486  */
 487 static char *VoutSnapshotGetDefaultDirectory( void )
 488 {
 489     char *psz_path = NULL;
 490 #if defined(__APPLE__) || defined(SYS_BEOS)
 491
 492     if( asprintf( &psz_path, "%s/Desktop",
 493                   config_GetHomeDir() ) == -1 )
 494         psz_path = NULL;
 495
 496 #elif defined(WIN32) && !defined(UNDER_CE)
 497
 498     /* Get the My Pictures folder path */
 499     char *p_mypicturesdir = NULL;
 500     typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
 501                                                LPWSTR );
 502     #ifndef CSIDL_FLAG_CREATE
 503     #   define CSIDL_FLAG_CREATE 0x8000
 504     #endif
 505     #ifndef CSIDL_MYPICTURES
 506     #   define CSIDL_MYPICTURES 0x27
 507     #endif
 508     #ifndef SHGFP_TYPE_CURRENT
 509     #   define SHGFP_TYPE_CURRENT 0
 510     #endif
 511
 512     HINSTANCE shfolder_dll;
 513     SHGETFOLDERPATH SHGetFolderPath ;
 514
 515     /* load the shfolder dll to retrieve SHGetFolderPath */
 516     if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
 517     {
 518        wchar_t wdir[PATH_MAX];
 519        SHGetFolderPath = (void *)GetProcAddress( shfolder_dll,
 520                                                   _T("SHGetFolderPathW") );
 521         if ((SHGetFolderPath != NULL )
 522          && SUCCEEDED (SHGetFolderPath (NULL,
 523                                        CSIDL_MYPICTURES | CSIDL_FLAG_CREATE,
 524                                        NULL, SHGFP_TYPE_CURRENT,
 525                                        wdir)))
 526             p_mypicturesdir = FromWide (wdir);
 527
 528         FreeLibrary( shfolder_dll );
 529     }
 530
 531     if( p_mypicturesdir == NULL )
 532         psz_path = strdup( config_GetHomeDir() );
 533     else
 534         psz_path = p_mypicturesdir;
 535
 536 #else
 537
 538     /* XXX: This saves in the data directory. Shouldn't we try saving
 539      *      to psz_homedir/Desktop or something nicer ? */
 540     char *psz_datadir = config_GetUserDataDir();
 541     if( psz_datadir )
 542     {
 543         if( asprintf( &psz_path, "%s", psz_datadir ) == -1 )
 544             psz_path = NULL;
 545         free( psz_datadir );
 546     }
 547
 548 #endif
 549
 550     return psz_path;
 551 }
 552 /**
 553  * This function will save a video snapshot to a file
 554  */
 555 static int VoutWriteSnapshot( vout_thread_t *p_vout, char **ppsz_filename,
 556                               const block_t *p_image,
 557                               const char *psz_path,
 558                               const char *psz_format,
 559                               const char *psz_prefix_fmt )
 560 {
 561     /* */
 562     char *psz_filename;
 563     DIR *p_path = utf8_opendir( psz_path );
 564     if( p_path != NULL )
 565     {
 566         /* The use specified a directory path */
 567         closedir( p_path );
 568
 569         /* */
 570         char *psz_prefix = NULL;
 571         if( psz_prefix_fmt )
 572             psz_prefix = str_format( p_vout, psz_prefix_fmt );
 573         if( !psz_prefix )
 574         {
 575             psz_prefix = strdup( "vlcsnap-" );
 576             if( !psz_prefix )
 577                 goto error;
 578         }
 579
 580         if( var_GetBool( p_vout, "snapshot-sequential" ) )
 581         {
 582             int i_num = var_GetInteger( p_vout, "snapshot-num" );
 583             for( ; ; i_num++ )
 584             {
 585                 struct stat st;
 586
 587                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%05d.%s",
 588                               psz_path, psz_prefix, i_num++, psz_format ) < 0 )
 589                 {
 590                     free( psz_prefix );
 591                     goto error;
 592                 }
 593                 if( utf8_stat( psz_filename, &st ) )
 594                     break;
 595                 free( psz_filename );
 596             }
 597
 598             var_SetInteger( p_vout, "snapshot-num", i_num );
 599         }
 600         else
 601         {
 602             struct tm    curtime;
 603             time_t       lcurtime = time( NULL ) ;
 604
 605             if( !localtime_r( &lcurtime, &curtime ) )
 606             {
 607                 const unsigned int i_id = (p_image->i_pts / 100000) & 0xFFFFFF;
 608
 609                 msg_Warn( p_vout, "failed to get current time. Falling back to legacy snapshot naming" );
 610
 611                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%u.%s",
 612                               psz_path, psz_prefix, i_id, psz_format ) < 0 )
 613                     psz_filename = NULL;
 614             }
 615             else
 616             {
 617                 /* suffix with the last decimal digit in 10s of seconds resolution
 618                  * FIXME gni ? */
 619                 const int i_id = (p_image->i_pts / (100*1000)) & 0xFF;
 620                 char psz_curtime[128];
 621
 622                 if( !strftime( psz_curtime, sizeof(psz_curtime), "%Y-%m-%d-%Hh%Mm%Ss", &curtime ) )
 623                     strcpy( psz_curtime, "error" );
 624
 625                 if( asprintf( &psz_filename, "%s" DIR_SEP "%s%s%1u.%s",
 626                               psz_path, psz_prefix, psz_curtime, i_id, psz_format ) < 0 )
 627                     psz_filename = NULL;
 628             }
 629         }
 630         free( psz_prefix );
 631     }
 632     else
 633     {
 634         /* The user specified a full path name (including file name) */
 635         psz_filename = str_format( p_vout, psz_path );
 636         path_sanitize( psz_filename );
 637     }
 638
 639     if( !psz_filename )
 640         goto error;
 641
 642     /* Save the snapshot */
 643     FILE *p_file = utf8_fopen( psz_filename, "wb" );
 644     if( !p_file )
 645     {
 646         msg_Err( p_vout, "Failed to open '%s'", psz_filename );
 647         free( psz_filename );
 648         goto error;
 649     }
 650     if( fwrite( p_image->p_buffer, p_image->i_buffer, 1, p_file ) != 1 )
 651     {
 652         msg_Err( p_vout, "Failed to write to '%s'", psz_filename );
 653         fclose( p_file );
 654         free( psz_filename );
 655         goto error;
 656     }
 657     fclose( p_file );
 658
 659     /* */
 660     if( ppsz_filename )
 661         *ppsz_filename = psz_filename;
 662     else
 663         free( psz_filename );
 664
 665     return VLC_SUCCESS;
 666
 667 error:
 668     msg_Err( p_vout, "could not save snapshot" );
 669     return VLC_EGENERIC;
 670 }
 671
 672 /**
 673  * This function will display the name and a PIP of the provided snapshot
 674  */
 675 static void VoutOsdSnapshot( vout_thread_t *p_vout, picture_t *p_pic, const char *psz_filename )
 676 {
 677     msg_Dbg( p_vout, "snapshot taken (%s)", psz_filename );
 678     vout_OSDMessage( VLC_OBJECT( p_vout ), DEFAULT_CHAN, "%s", psz_filename );
 679
 680     if( var_GetBool( p_vout, "snapshot-preview" ) )
 681     {
 682         if( VoutSnapshotPip( p_vout, p_pic ) )
 683             msg_Warn( p_vout, "Failed to display snapshot" );
 684     }
 685 }
 686
 687 /* */
 688 int vout_GetSnapshot( vout_thread_t *p_vout,
 689                       block_t **pp_image, picture_t **pp_picture,
 690                       video_format_t *p_fmt,
 691                       const char *psz_format, mtime_t i_timeout )
 692 {
 693     vout_thread_sys_t *p_sys = p_vout->p;
 694
 695     vlc_mutex_lock( &p_sys->snapshot.lock );
 696     p_sys->snapshot.i_request++;
 697
 698     const mtime_t i_deadline = mdate() + i_timeout;
 699     while( p_sys->snapshot.b_available && !p_sys->snapshot.p_picture &&
 700            mdate() < i_deadline )
 701     {
 702         vlc_cond_timedwait( &p_sys->snapshot.wait, &p_sys->snapshot.lock,
 703                             i_timeout );
 704     }
 705
 706     picture_t *p_picture = p_sys->snapshot.p_picture;
 707     if( p_picture )
 708         p_sys->snapshot.p_picture = p_picture->p_next;
 709     else if( p_sys->snapshot.i_request > 0 )
 710         p_sys->snapshot.i_request--;
 711     vlc_mutex_unlock( &p_sys->snapshot.lock );
 712
 713     if( !p_picture )
 714     {
 715         msg_Err( p_vout, "Failed to grab a snapshot" );
 716         return VLC_EGENERIC;
 717     }
 718
 719     if( pp_image )
 720     {
 721         vlc_fourcc_t i_format = VLC_CODEC_PNG;
 722         if( psz_format && image_Type2Fourcc( psz_format ) )
 723             i_format = image_Type2Fourcc( psz_format );
 724
 725         const int i_override_width  = var_GetInteger( p_vout, "snapshot-width" );
 726         const int i_override_height = var_GetInteger( p_vout, "snapshot-height" );
 727
 728         if( picture_Export( VLC_OBJECT(p_vout), pp_image, p_fmt,
 729                             p_picture, i_format, i_override_width, i_override_height ) )
 730         {
 731             msg_Err( p_vout, "Failed to convert image for snapshot" );
 732             picture_Release( p_picture );
 733             return VLC_EGENERIC;
 734         }
 735     }
 736     if( pp_picture )
 737         *pp_picture = p_picture;
 738     else
 739         picture_Release( p_picture );
 740     return VLC_SUCCESS;
 741 }
 742
 743 /**
 744  * This function will handle a snapshot request
 745  */
 746 static void VoutSaveSnapshot( vout_thread_t *p_vout )
 747 {
 748     char *psz_path = var_GetNonEmptyString( p_vout, "snapshot-path" );
 749     char *psz_format = var_GetNonEmptyString( p_vout, "snapshot-format" );
 750     char *psz_prefix = var_GetNonEmptyString( p_vout, "snapshot-prefix" );
 751
 752     /* */
 753     picture_t *p_picture;
 754     block_t *p_image;
 755     video_format_t fmt;
 756
 757     /* 500ms timeout
 758      * XXX it will cause trouble with low fps video (< 2fps) */
 759     if( vout_GetSnapshot( p_vout, &p_image, &p_picture, &fmt, psz_format, 500*1000 ) )
 760     {
 761         p_picture = NULL;
 762         p_image = NULL;
 763         goto exit;
 764     }
 765
 766     if( !psz_path )
 767     {
 768         psz_path = VoutSnapshotGetDefaultDirectory();
 769         if( !psz_path )
 770         {
 771             msg_Err( p_vout, "no path specified for snapshots" );
 772             goto exit;
 773         }
 774     }
 775
 776     char *psz_filename;
 777     if( VoutWriteSnapshot( p_vout, &psz_filename,
 778                            p_image,
 779                            psz_path, psz_format, psz_prefix ) )
 780         goto exit;
 781
 782     VoutOsdSnapshot( p_vout, p_picture, psz_filename );
 783
 784     /* Generate a media player event  - Right now just trigger a global libvlc var
 785         CHECK: Could not find a more local object. The goal is to communicate
 786         vout_thread with libvlc_media_player or its input_thread */
 787     var_SetString( p_vout->p_libvlc, "vout-snapshottaken", psz_filename );
 788     free( psz_filename );
 789
 790 exit:
 791     if( p_image )
 792         block_Release( p_image );
 793     if( p_picture )
 794         picture_Release( p_picture );
 795     free( psz_prefix );
 796     free( psz_format );
 797     free( psz_path );
 798 }
 799
 800 /*****************************************************************************
 801  * Handle filters
 802  *****************************************************************************/
 803
 804 void vout_EnableFilter( vout_thread_t *p_vout, char *psz_name,
 805                         bool b_add, bool b_setconfig )
 806 {
 807     char *psz_parser;
 808     char *psz_string = config_GetPsz( p_vout, "vout-filter" );
 809
 810     /* Todo : Use some generic chain manipulation functions */
 811     if( !psz_string ) psz_string = strdup("");
 812
 813     psz_parser = strstr( psz_string, psz_name );
 814     if( b_add )
 815     {
 816         if( !psz_parser )
 817         {
 818             psz_parser = psz_string;
 819             if( asprintf( &psz_string, (*psz_string) ? "%s:%s" : "%s%s",
 820                           psz_string, psz_name ) == -1 )
 821             {
 822                 free( psz_parser );
 823                 return;
 824             }
 825             free( psz_parser );
 826         }
 827         else
 828             return;
 829     }
 830     else
 831     {
 832         if( psz_parser )
 833         {
 834             memmove( psz_parser, psz_parser + strlen(psz_name) +
 835                             (*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ),
 836                             strlen(psz_parser + strlen(psz_name)) + 1 );
 837
 838             /* Remove trailing : : */
 839             if( *(psz_string+strlen(psz_string ) -1 ) == ':' )
 840             {
 841                 *(psz_string+strlen(psz_string ) -1 ) = '\0';
 842             }
 843          }
 844          else
 845          {
 846              free( psz_string );
 847              return;
 848          }
 849     }
 850     if( b_setconfig )
 851         config_PutPsz( p_vout, "vout-filter", psz_string );
 852
 853     var_SetString( p_vout, "vout-filter", psz_string );
 854     free( psz_string );
 855 }
 856
 857 /*****************************************************************************
 858  * InitWindowSize: find the initial dimensions the video window should have.
 859  *****************************************************************************
 860  * This function will check the "width", "height" and "zoom" config options and
 861  * will calculate the size that the video window should have.
 862  *****************************************************************************/
 863 static void InitWindowSize( vout_thread_t *p_vout, unsigned *pi_width,
 864                             unsigned *pi_height )
 865 {
 866 #define FP_FACTOR 1000                             /* our fixed point factor */
 867
 868     int i_width = var_GetInteger( p_vout, "width" );
 869     int i_height = var_GetInteger( p_vout, "height" );
 870     float f_zoom = var_GetFloat( p_vout, "zoom" );
 871     uint64_t ll_zoom = (uint64_t)( FP_FACTOR * f_zoom );
 872
 873     if( i_width > 0 && i_height > 0)
 874     {
 875         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 876         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 877     }
 878     else if( i_width > 0 )
 879     {
 880         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
 881         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 882             p_vout->fmt_in.i_sar_den * i_width / p_vout->fmt_in.i_sar_num /
 883             FP_FACTOR / p_vout->fmt_in.i_visible_width );
 884     }
 885     else if( i_height > 0 )
 886     {
 887         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
 888         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 889             p_vout->fmt_in.i_sar_num * i_height / p_vout->fmt_in.i_sar_den /
 890             FP_FACTOR / p_vout->fmt_in.i_visible_height );
 891     }
 892     else if( p_vout->fmt_in.i_sar_num == 0 || p_vout->fmt_in.i_sar_den == 0 )
 893     {
 894         msg_Warn( p_vout, "aspect ratio screwed up" );
 895         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom / FP_FACTOR );
 896         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom /FP_FACTOR);
 897     }
 898     else if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
 899     {
 900         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom *
 901             p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den / FP_FACTOR );
 902         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom
 903             / FP_FACTOR );
 904     }
 905     else
 906     {
 907         *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom
 908             / FP_FACTOR );
 909         *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom *
 910             p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num / FP_FACTOR );
 911     }
 912
 913     msg_Dbg( p_vout, "window size: %ux%u", *pi_width, *pi_height );
 914
 915 #undef FP_FACTOR
 916 }
 917
 918 /*****************************************************************************
 919  * Object variables callbacks
 920  *****************************************************************************/
 921 static int ZoomCallback( vlc_object_t *p_this, char const *psz_cmd,
 922                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 923 {
 924     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 925     (void)psz_cmd; (void)oldval; (void)newval; (void)p_data;
 926     InitWindowSize( p_vout, &p_vout->i_window_width,
 927                     &p_vout->i_window_height );
 928     vout_Control( p_vout, VOUT_SET_SIZE, p_vout->i_window_width,
 929                   p_vout->i_window_height );
 930     return VLC_SUCCESS;
 931 }
 932
 933 static int CropCallback( vlc_object_t *p_this, char const *psz_cmd,
 934                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 935 {
 936     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 937     int64_t i_aspect_num, i_aspect_den;
 938     unsigned int i_width, i_height;
 939
 940     (void)oldval; (void)p_data;
 941
 942     /* Restore defaults */
 943     p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset;
 944     p_vout->fmt_in.i_visible_width = p_vout->fmt_render.i_visible_width;
 945     p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset;
 946     p_vout->fmt_in.i_visible_height = p_vout->fmt_render.i_visible_height;
 947
 948     if( !strcmp( psz_cmd, "crop" ) )
 949     {
 950         char *psz_end = NULL, *psz_parser = strchr( newval.psz_string, ':' );
 951         if( psz_parser )
 952         {
 953             /* We're using the 3:4 syntax */
 954             i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
 955             if( psz_end == newval.psz_string || !i_aspect_num ) goto crop_end;
 956
 957             i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
 958             if( psz_end == psz_parser || !i_aspect_den ) goto crop_end;
 959
 960             i_width = p_vout->fmt_in.i_sar_den*p_vout->fmt_render.i_visible_height *
 961                 i_aspect_num / i_aspect_den / p_vout->fmt_in.i_sar_num;
 962             i_height = p_vout->fmt_render.i_visible_width*p_vout->fmt_in.i_sar_num *
 963                 i_aspect_den / i_aspect_num / p_vout->fmt_in.i_sar_den;
 964
 965             if( i_width < p_vout->fmt_render.i_visible_width )
 966             {
 967                 p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset +
 968                     (p_vout->fmt_render.i_visible_width - i_width) / 2;
 969                 p_vout->fmt_in.i_visible_width = i_width;
 970             }
 971             else
 972             {
 973                 p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset +
 974                     (p_vout->fmt_render.i_visible_height - i_height) / 2;
 975                 p_vout->fmt_in.i_visible_height = i_height;
 976             }
 977         }
 978         else
 979         {
 980             psz_parser = strchr( newval.psz_string, 'x' );
 981             if( psz_parser )
 982             {
 983                 /* Maybe we're using the <width>x<height>+<left>+<top> syntax */
 984                 unsigned int i_crop_width, i_crop_height, i_crop_top, i_crop_left;
 985
 986                 i_crop_width = strtol( newval.psz_string, &psz_end, 10 );
 987                 if( psz_end != psz_parser ) goto crop_end;
 988
 989                 psz_parser = strchr( ++psz_end, '+' );
 990                 i_crop_height = strtol( psz_end, &psz_end, 10 );
 991                 if( psz_end != psz_parser ) goto crop_end;
 992
 993                 psz_parser = strchr( ++psz_end, '+' );
 994                 i_crop_left = strtol( psz_end, &psz_end, 10 );
 995                 if( psz_end != psz_parser ) goto crop_end;
 996
 997                 psz_end++;
 998                 i_crop_top = strtol( psz_end, &psz_end, 10 );
 999                 if( *psz_end != '\0' ) goto crop_end;
1000
1001                 if( i_crop_top + i_crop_height >= p_vout->fmt_render.i_visible_height ||
1002                     i_crop_left + i_crop_width >= p_vout->fmt_render.i_visible_width )
1003                 {
1004                     msg_Err( p_vout, "Unable to crop over picture boundaries");
1005                     return VLC_EGENERIC;
1006                 }
1007
1008                 i_width = i_crop_width;
1009                 p_vout->fmt_in.i_visible_width = i_width;
1010
1011                 i_height = i_crop_height;
1012                 p_vout->fmt_in.i_visible_height = i_height;
1013
1014                 p_vout->fmt_in.i_x_offset = i_crop_left;
1015                 p_vout->fmt_in.i_y_offset = i_crop_top;
1016             }
1017             else
1018             {
1019                 /* Maybe we're using the <left>+<top>+<right>+<bottom> syntax */
1020                 unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1021
1022                 psz_parser = strchr( newval.psz_string, '+' );
1023                 i_crop_left = strtol( newval.psz_string, &psz_end, 10 );
1024                 if( psz_end != psz_parser ) goto crop_end;
1025
1026                 psz_parser = strchr( ++psz_end, '+' );
1027                 i_crop_top = strtol( psz_end, &psz_end, 10 );
1028                 if( psz_end != psz_parser ) goto crop_end;
1029
1030                 psz_parser = strchr( ++psz_end, '+' );
1031                 i_crop_right = strtol( psz_end, &psz_end, 10 );
1032                 if( psz_end != psz_parser ) goto crop_end;
1033
1034                 psz_end++;
1035                 i_crop_bottom = strtol( psz_end, &psz_end, 10 );
1036                 if( *psz_end != '\0' ) goto crop_end;
1037
1038                 if( i_crop_top + i_crop_bottom >= p_vout->fmt_render.i_visible_height ||
1039                     i_crop_right + i_crop_left >= p_vout->fmt_render.i_visible_width )
1040                 {
1041                     msg_Err( p_vout, "Unable to crop over picture boundaries" );
1042                     return VLC_EGENERIC;
1043                 }
1044
1045                 i_width = p_vout->fmt_render.i_visible_width
1046                           - i_crop_left - i_crop_right;
1047                 p_vout->fmt_in.i_visible_width = i_width;
1048
1049                 i_height = p_vout->fmt_render.i_visible_height
1050                            - i_crop_top - i_crop_bottom;
1051                 p_vout->fmt_in.i_visible_height = i_height;
1052
1053                 p_vout->fmt_in.i_x_offset = i_crop_left;
1054                 p_vout->fmt_in.i_y_offset = i_crop_top;
1055             }
1056         }
1057     }
1058     else if( !strcmp( psz_cmd, "crop-top" )
1059           || !strcmp( psz_cmd, "crop-left" )
1060           || !strcmp( psz_cmd, "crop-bottom" )
1061           || !strcmp( psz_cmd, "crop-right" ) )
1062     {
1063         unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right;
1064
1065         i_crop_top = var_GetInteger( p_vout, "crop-top" );
1066         i_crop_left = var_GetInteger( p_vout, "crop-left" );
1067         i_crop_right = var_GetInteger( p_vout, "crop-right" );
1068         i_crop_bottom = var_GetInteger( p_vout, "crop-bottom" );
1069
1070         if( i_crop_top + i_crop_bottom >= p_vout->fmt_render.i_visible_height ||
1071             i_crop_right + i_crop_left >= p_vout->fmt_render.i_visible_width )
1072         {
1073             msg_Err( p_vout, "Unable to crop over picture boundaries" );
1074             return VLC_EGENERIC;
1075         }
1076
1077         i_width = p_vout->fmt_render.i_visible_width
1078                   - i_crop_left - i_crop_right;
1079         p_vout->fmt_in.i_visible_width = i_width;
1080
1081         i_height = p_vout->fmt_render.i_visible_height
1082                    - i_crop_top - i_crop_bottom;
1083         p_vout->fmt_in.i_visible_height = i_height;
1084
1085         p_vout->fmt_in.i_x_offset = i_crop_left;
1086         p_vout->fmt_in.i_y_offset = i_crop_top;
1087     }
1088
1089  crop_end:
1090     InitWindowSize( p_vout, &p_vout->i_window_width,
1091                     &p_vout->i_window_height );
1092
1093     p_vout->i_changes |= VOUT_CROP_CHANGE;
1094
1095     msg_Dbg( p_vout, "cropping picture %ix%i to %i,%i,%ix%i",
1096              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
1097              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
1098              p_vout->fmt_in.i_visible_width,
1099              p_vout->fmt_in.i_visible_height );
1100
1101     var_SetVoid( p_vout, "crop-update" );
1102
1103     return VLC_SUCCESS;
1104 }
1105
1106 static int AspectCallback( vlc_object_t *p_this, char const *psz_cmd,
1107                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1108 {
1109     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1110     unsigned int i_aspect_num, i_aspect_den, i_sar_num, i_sar_den;
1111     vlc_value_t val;
1112
1113     char *psz_end, *psz_parser = strchr( newval.psz_string, ':' );
1114     (void)psz_cmd; (void)oldval; (void)p_data;
1115
1116     /* Restore defaults */
1117     p_vout->fmt_in.i_sar_num = p_vout->fmt_render.i_sar_num;
1118     p_vout->fmt_in.i_sar_den = p_vout->fmt_render.i_sar_den;
1119     p_vout->fmt_in.i_aspect = p_vout->fmt_render.i_aspect;
1120     p_vout->render.i_aspect = p_vout->fmt_render.i_aspect;
1121
1122     if( !psz_parser ) goto aspect_end;
1123
1124     i_aspect_num = strtol( newval.psz_string, &psz_end, 10 );
1125     if( psz_end == newval.psz_string || !i_aspect_num ) goto aspect_end;
1126
1127     i_aspect_den = strtol( ++psz_parser, &psz_end, 10 );
1128     if( psz_end == psz_parser || !i_aspect_den ) goto aspect_end;
1129
1130     i_sar_num = i_aspect_num * p_vout->fmt_render.i_visible_height;
1131     i_sar_den = i_aspect_den * p_vout->fmt_render.i_visible_width;
1132     vlc_ureduce( &i_sar_num, &i_sar_den, i_sar_num, i_sar_den, 0 );
1133     p_vout->fmt_in.i_sar_num = i_sar_num;
1134     p_vout->fmt_in.i_sar_den = i_sar_den;
1135     p_vout->fmt_in.i_aspect = i_aspect_num * VOUT_ASPECT_FACTOR / i_aspect_den;
1136     p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1137
1138  aspect_end:
1139     if( p_vout->p->i_par_num && p_vout->p->i_par_den )
1140     {
1141         p_vout->fmt_in.i_sar_num *= p_vout->p->i_par_den;
1142         p_vout->fmt_in.i_sar_den *= p_vout->p->i_par_num;
1143         p_vout->fmt_in.i_aspect = p_vout->fmt_in.i_aspect *
1144             p_vout->p->i_par_den / p_vout->p->i_par_num;
1145         p_vout->render.i_aspect = p_vout->fmt_in.i_aspect;
1146     }
1147
1148     p_vout->i_changes |= VOUT_ASPECT_CHANGE;
1149
1150     vlc_ureduce( &i_aspect_num, &i_aspect_den,
1151                  p_vout->fmt_in.i_aspect, VOUT_ASPECT_FACTOR, 0 );
1152     msg_Dbg( p_vout, "new aspect-ratio %i:%i, sample aspect-ratio %i:%i",
1153              i_aspect_num, i_aspect_den,
1154              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den );
1155
1156     if( var_Get( p_vout, "crop", &val ) )
1157         return VLC_EGENERIC;
1158
1159     int i_ret = CropCallback( p_this, "crop", val, val, 0 );
1160     free( val.psz_string );
1161     return i_ret;
1162 }
1163
1164 static int ScalingCallback( vlc_object_t *p_this, char const *psz_cmd,
1165                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1166 {
1167     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1168     (void)oldval; (void)newval; (void)p_data;
1169
1170     vlc_mutex_lock( &p_vout->change_lock );
1171
1172     if( !strcmp( psz_cmd, "autoscale" ) )
1173     {
1174         p_vout->i_changes |= VOUT_SCALE_CHANGE;
1175     }
1176     else if( !strcmp( psz_cmd, "scale" ) )
1177     {
1178         p_vout->i_changes |= VOUT_ZOOM_CHANGE;
1179     }
1180
1181     vlc_mutex_unlock( &p_vout->change_lock );
1182
1183     return VLC_SUCCESS;
1184 }
1185
1186 static int OnTopCallback( vlc_object_t *p_this, char const *psz_cmd,
1187                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
1188 {
1189     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1190
1191     vlc_mutex_lock( &p_vout->change_lock );
1192     p_vout->i_changes |= VOUT_ON_TOP_CHANGE;
1193     p_vout->b_on_top = newval.b_bool;
1194     vlc_mutex_unlock( &p_vout->change_lock );
1195
1196     /* Modify libvlc as well because the vout might have to be restarted */
1197     var_Create( p_vout->p_libvlc, "video-on-top", VLC_VAR_BOOL );
1198     var_Set( p_vout->p_libvlc, "video-on-top", newval );
1199
1200     (void)psz_cmd; (void)oldval; (void)p_data;
1201     return VLC_SUCCESS;
1202 }
1203
1204 static int FullscreenCallback( vlc_object_t *p_this, char const *psz_cmd,
1205                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1206 {
1207     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1208     vlc_value_t val;
1209     (void)psz_cmd; (void)oldval; (void)p_data;
1210
1211     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
1212
1213     /* Modify libvlc as well because the vout might have to be restarted */
1214     var_Create( p_vout->p_libvlc, "fullscreen", VLC_VAR_BOOL );
1215     var_Set( p_vout->p_libvlc, "fullscreen", newval );
1216
1217     val.b_bool = true;
1218     var_Set( p_vout, "intf-change", val );
1219     return VLC_SUCCESS;
1220 }
1221
1222 static int SnapshotCallback( vlc_object_t *p_this, char const *psz_cmd,
1223                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1224 {
1225     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1226     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1227     VLC_UNUSED(newval); VLC_UNUSED(p_data);
1228
1229     VoutSaveSnapshot( p_vout );
1230     return VLC_SUCCESS;
1231 }
1232
1233 static int TitleShowCallback( vlc_object_t *p_this, char const *psz_cmd,
1234                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1235 {
1236     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1237     VLC_UNUSED(p_data);
1238     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1239     p_vout->p->b_title_show = newval.b_bool;
1240     return VLC_SUCCESS;
1241 }
1242
1243 static int TitleTimeoutCallback( vlc_object_t *p_this, char const *psz_cmd,
1244                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1245 {
1246     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1247     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1248     p_vout->p->i_title_timeout = (mtime_t) newval.i_int;
1249     return VLC_SUCCESS;
1250 }
1251
1252 static int TitlePositionCallback( vlc_object_t *p_this, char const *psz_cmd,
1253                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1254 {
1255     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
1256     VLC_UNUSED(p_data);
1257     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1258     p_vout->p->i_title_position = newval.i_int;
1259     return VLC_SUCCESS;
1260 }