git.sesse.net Git - vlc/blob - modules/control/hotkeys.c

   1 /*****************************************************************************
   2  * hotkeys.c: Hotkey handling for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2005-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Sigmund Augdal Helberg <dnumgis@videolan.org>
   8  *          Jean-Paul Saman <jpsaman #_at_# m2x.nl>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_interface.h>
  36 #include <vlc_input.h>
  37 #include <vlc_aout.h>
  38 #include <vlc_vout.h>
  39 #include <vlc_vout_osd.h>
  40 #include <vlc_playlist.h>
  41 #include <vlc_keys.h>
  42 #include "math.h"
  43
  44 /*****************************************************************************
  45  * intf_sys_t: description and status of FB interface
  46  *****************************************************************************/
  47 struct intf_sys_t
  48 {
  49     vout_thread_t      *p_last_vout;
  50     int slider_chan;
  51
  52     /*subtitle_delaybookmarks: placeholder for storing subtitle sync timestamps*/
  53     struct
  54     {
  55         int64_t i_time_subtitle;
  56         int64_t i_time_audio;
  57     } subtitle_delaybookmarks;
  58 };
  59
  60 /*****************************************************************************
  61  * Local prototypes
  62  *****************************************************************************/
  63 static int  Open    ( vlc_object_t * );
  64 static void Close   ( vlc_object_t * );
  65 static int  ActionEvent( vlc_object_t *, char const *,
  66                          vlc_value_t, vlc_value_t, void * );
  67 static void PlayBookmark( intf_thread_t *, int );
  68 static void SetBookmark ( intf_thread_t *, int );
  69 static void DisplayPosition( intf_thread_t *, vout_thread_t *, input_thread_t * );
  70 static void DisplayVolume( intf_thread_t *, vout_thread_t *, float );
  71 static void DisplayRate ( vout_thread_t *, float );
  72 static float AdjustRateFine( vlc_object_t *, const int );
  73 static void ClearChannels  ( intf_thread_t *, vout_thread_t * );
  74
  75 #define DisplayMessage(vout, ...) \
  76     do { \
  77         if (vout) \
  78             vout_OSDMessage(vout, SPU_DEFAULT_CHANNEL, __VA_ARGS__); \
  79     } while(0)
  80 #define DisplayIcon(vout, icon) \
  81     do { if(vout) vout_OSDIcon(vout, SPU_DEFAULT_CHANNEL, icon); } while(0)
  82
  83 /*****************************************************************************
  84  * Module descriptor
  85  *****************************************************************************/
  86
  87 vlc_module_begin ()
  88     set_shortname( N_("Hotkeys") )
  89     set_description( N_("Hotkeys management interface") )
  90     set_capability( "interface", 0 )
  91     set_callbacks( Open, Close )
  92     set_category( CAT_INTERFACE )
  93     set_subcategory( SUBCAT_INTERFACE_HOTKEYS )
  94
  95 vlc_module_end ()
  96
  97 /*****************************************************************************
  98  * Open: initialize interface
  99  *****************************************************************************/
 100 static int Open( vlc_object_t *p_this )
 101 {
 102     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 103     intf_sys_t *p_sys;
 104     p_sys = malloc( sizeof( intf_sys_t ) );
 105     if( !p_sys )
 106         return VLC_ENOMEM;
 107
 108     p_intf->p_sys = p_sys;
 109
 110     p_sys->p_last_vout = NULL;
 111     p_sys->subtitle_delaybookmarks.i_time_audio = 0;
 112     p_sys->subtitle_delaybookmarks.i_time_subtitle = 0;
 113
 114     var_AddCallback( p_intf->p_libvlc, "key-action", ActionEvent, p_intf );
 115     return VLC_SUCCESS;
 116 }
 117
 118 /*****************************************************************************
 119  * Close: destroy interface
 120  *****************************************************************************/
 121 static void Close( vlc_object_t *p_this )
 122 {
 123     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 124     intf_sys_t *p_sys = p_intf->p_sys;
 125
 126     var_DelCallback( p_intf->p_libvlc, "key-action", ActionEvent, p_intf );
 127
 128     /* Destroy structure */
 129     free( p_sys );
 130 }
 131
 132 static int PutAction( intf_thread_t *p_intf, int i_action )
 133 {
 134     intf_sys_t *p_sys = p_intf->p_sys;
 135     playlist_t *p_playlist = pl_Get( p_intf );
 136
 137     /* Update the input */
 138     input_thread_t *p_input = playlist_CurrentInput( p_playlist );
 139
 140     /* Update the vout */
 141     vout_thread_t *p_vout = p_input ? input_GetVout( p_input ) : NULL;
 142
 143     /* Register OSD channels */
 144     /* FIXME: this check can fail if the new vout is reallocated at the same
 145      * address as the old one... We should rather listen to vout events.
 146      * Alternatively, we should keep a reference to the vout thread. */
 147     if( p_vout && p_vout != p_sys->p_last_vout )
 148         p_sys->slider_chan = vout_RegisterSubpictureChannel( p_vout );
 149     p_sys->p_last_vout = p_vout;
 150
 151     /* Quit */
 152     switch( i_action )
 153     {
 154         /* Libvlc / interface actions */
 155         case ACTIONID_QUIT:
 156             libvlc_Quit( p_intf->p_libvlc );
 157
 158             ClearChannels( p_intf, p_vout );
 159             DisplayMessage( p_vout, _( "Quit" ) );
 160             break;
 161
 162         case ACTIONID_INTF_TOGGLE_FSC:
 163         case ACTIONID_INTF_HIDE:
 164             var_TriggerCallback( p_intf->p_libvlc, "intf-toggle-fscontrol" );
 165             break;
 166         case ACTIONID_INTF_BOSS:
 167             var_TriggerCallback( p_intf->p_libvlc, "intf-boss" );
 168             break;
 169         case ACTIONID_INTF_POPUP_MENU:
 170             var_TriggerCallback( p_intf->p_libvlc, "intf-popupmenu" );
 171             break;
 172
 173         /* Playlist actions (including audio) */
 174         case ACTIONID_LOOP:
 175         {
 176             /* Toggle Normal -> Loop -> Repeat -> Normal ... */
 177             const char *mode;
 178             if( var_GetBool( p_playlist, "repeat" ) )
 179             {
 180                 var_SetBool( p_playlist, "repeat", false );
 181                 mode = N_("Off");
 182             }
 183             else
 184             if( var_GetBool( p_playlist, "loop" ) )
 185             { /* FIXME: this is not atomic, we should use a real tristate */
 186                 var_SetBool( p_playlist, "loop", false );
 187                 var_SetBool( p_playlist, "repeat", true );
 188                 mode = N_("One");
 189             }
 190             else
 191             {
 192                 var_SetBool( p_playlist, "loop", true );
 193                 mode = N_("All");
 194             }
 195             DisplayMessage( p_vout, _("Loop: %s"), vlc_gettext(mode) );
 196             break;
 197         }
 198
 199         case ACTIONID_RANDOM:
 200         {
 201             const bool state = var_ToggleBool( p_playlist, "random" );
 202             DisplayMessage( p_vout, _("Random: %s"),
 203                             vlc_gettext( state ? N_("On") : N_("Off") ) );
 204             break;
 205         }
 206
 207         case ACTIONID_NEXT:
 208             DisplayMessage( p_vout, _("Next") );
 209             playlist_Next( p_playlist );
 210             break;
 211         case ACTIONID_PREV:
 212             DisplayMessage( p_vout, _("Previous") );
 213             playlist_Prev( p_playlist );
 214             break;
 215
 216         case ACTIONID_STOP:
 217             playlist_Stop( p_playlist );
 218             break;
 219
 220         case ACTIONID_RATE_NORMAL:
 221             var_SetFloat( p_playlist, "rate", 1.f );
 222             DisplayRate( p_vout, 1.f );
 223             break;
 224         case ACTIONID_FASTER:
 225             var_TriggerCallback( p_playlist, "rate-faster" );
 226             DisplayRate( p_vout, var_GetFloat( p_playlist, "rate" ) );
 227             break;
 228         case ACTIONID_SLOWER:
 229             var_TriggerCallback( p_playlist, "rate-slower" );
 230             DisplayRate( p_vout, var_GetFloat( p_playlist, "rate" ) );
 231             break;
 232         case ACTIONID_RATE_FASTER_FINE:
 233         case ACTIONID_RATE_SLOWER_FINE:
 234         {
 235             const int i_dir = i_action == ACTIONID_RATE_FASTER_FINE ? 1 : -1;
 236             float rate = AdjustRateFine( VLC_OBJECT(p_playlist), i_dir );
 237
 238             var_SetFloat( p_playlist, "rate", rate );
 239             DisplayRate( p_vout, rate );
 240             break;
 241         }
 242
 243         case ACTIONID_PLAY_BOOKMARK1:
 244         case ACTIONID_PLAY_BOOKMARK2:
 245         case ACTIONID_PLAY_BOOKMARK3:
 246         case ACTIONID_PLAY_BOOKMARK4:
 247         case ACTIONID_PLAY_BOOKMARK5:
 248         case ACTIONID_PLAY_BOOKMARK6:
 249         case ACTIONID_PLAY_BOOKMARK7:
 250         case ACTIONID_PLAY_BOOKMARK8:
 251         case ACTIONID_PLAY_BOOKMARK9:
 252         case ACTIONID_PLAY_BOOKMARK10:
 253             PlayBookmark( p_intf, i_action - ACTIONID_PLAY_BOOKMARK1 + 1 );
 254             break;
 255
 256         case ACTIONID_SET_BOOKMARK1:
 257         case ACTIONID_SET_BOOKMARK2:
 258         case ACTIONID_SET_BOOKMARK3:
 259         case ACTIONID_SET_BOOKMARK4:
 260         case ACTIONID_SET_BOOKMARK5:
 261         case ACTIONID_SET_BOOKMARK6:
 262         case ACTIONID_SET_BOOKMARK7:
 263         case ACTIONID_SET_BOOKMARK8:
 264         case ACTIONID_SET_BOOKMARK9:
 265         case ACTIONID_SET_BOOKMARK10:
 266             SetBookmark( p_intf, i_action - ACTIONID_SET_BOOKMARK1 + 1 );
 267             break;
 268         case ACTIONID_PLAY_CLEAR:
 269         {
 270             playlist_t *p_playlist = pl_Get( p_intf );
 271             playlist_Clear( p_playlist, pl_Unlocked );
 272             break;
 273         }
 274         case ACTIONID_VOL_UP:
 275         {
 276             float vol;
 277             if( playlist_VolumeUp( p_playlist, 1, &vol ) == 0 )
 278                 DisplayVolume( p_intf, p_vout, vol );
 279             break;
 280         }
 281         case ACTIONID_VOL_DOWN:
 282         {
 283             float vol;
 284             if( playlist_VolumeDown( p_playlist, 1, &vol ) == 0 )
 285                 DisplayVolume( p_intf, p_vout, vol );
 286             break;
 287         }
 288         case ACTIONID_VOL_MUTE:
 289         {
 290             int mute = playlist_MuteGet( p_playlist );
 291             if( mute < 0 )
 292                 break;
 293             mute = !mute;
 294             if( playlist_MuteSet( p_playlist, mute ) )
 295                 break;
 296
 297             float vol = playlist_VolumeGet( p_playlist );
 298             if( mute || vol == 0.f )
 299             {
 300                 ClearChannels( p_intf, p_vout );
 301                 DisplayIcon( p_vout, OSD_MUTE_ICON );
 302             }
 303             else
 304                 DisplayVolume( p_intf, p_vout, vol );
 305             break;
 306         }
 307
 308         case ACTIONID_AUDIODEVICE_CYCLE:
 309         {
 310             audio_output_t *p_aout = playlist_GetAout( p_playlist );
 311             if( p_aout == NULL )
 312                 break;
 313
 314             char **ids, **names;
 315             int n = aout_DevicesList( p_aout, &ids, &names );
 316             if( n == -1 )
 317                 break;
 318
 319             char *dev = aout_DeviceGet( p_aout );
 320             const char *devstr = (dev != NULL) ? dev : "";
 321
 322             int idx = 0;
 323             for( int i = 0; i < n; i++ )
 324             {
 325                 if( !strcmp(devstr, ids[i]) )
 326                     idx = (i + 1) % n;
 327             }
 328             free( dev );
 329
 330             if( !aout_DeviceSet( p_aout, ids[idx] ) )
 331                 DisplayMessage( p_vout, _("Audio Device: %s"), names[idx] );
 332             vlc_object_release( p_aout );
 333
 334             for( int i = 0; i < n; i++ )
 335             {
 336                 free( ids[i] );
 337                 free( names[i] );
 338             }
 339             free( ids );
 340             free( names );
 341             break;
 342         }
 343
 344         /* Playlist + input actions */
 345         case ACTIONID_PLAY_PAUSE:
 346             if( p_input )
 347             {
 348                 ClearChannels( p_intf, p_vout );
 349
 350                 int state = var_GetInteger( p_input, "state" );
 351                 DisplayIcon( p_vout, state != PAUSE_S ? OSD_PAUSE_ICON : OSD_PLAY_ICON );
 352                 playlist_Pause( p_playlist );
 353             }
 354             else
 355                 playlist_Play( p_playlist );
 356             break;
 357
 358         case ACTIONID_PLAY:
 359             if( p_input && var_GetFloat( p_input, "rate" ) != 1.f )
 360                 /* Return to normal speed */
 361                 var_SetFloat( p_input, "rate", 1.f );
 362             else
 363             {
 364                 ClearChannels( p_intf, p_vout );
 365                 DisplayIcon( p_vout, OSD_PLAY_ICON );
 366                 playlist_Play( p_playlist );
 367             }
 368             break;
 369
 370         /* Playlist + video output actions */
 371         case ACTIONID_WALLPAPER:
 372         {
 373             bool wp = var_ToggleBool( p_playlist, "video-wallpaper" );
 374             if( p_vout )
 375                 var_SetBool( p_vout, "video-wallpaper", wp );
 376             break;
 377         }
 378
 379         /* Input actions */
 380         case ACTIONID_PAUSE:
 381             if( p_input && var_GetInteger( p_input, "state" ) != PAUSE_S )
 382             {
 383                 ClearChannels( p_intf, p_vout );
 384                 DisplayIcon( p_vout, OSD_PAUSE_ICON );
 385                 var_SetInteger( p_input, "state", PAUSE_S );
 386             }
 387             break;
 388
 389         case ACTIONID_RECORD:
 390             if( p_input && var_GetBool( p_input, "can-record" ) )
 391             {
 392                 const bool on = var_ToggleBool( p_input, "record" );
 393                 DisplayMessage( p_vout, vlc_gettext(on
 394                                    ? N_("Recording") : N_("Recording done")) );
 395             }
 396             break;
 397
 398         case ACTIONID_FRAME_NEXT:
 399             if( p_input )
 400             {
 401                 var_TriggerCallback( p_input, "frame-next" );
 402                 DisplayMessage( p_vout, _("Next frame") );
 403             }
 404             break;
 405
 406         case ACTIONID_SUBSYNC_MARKAUDIO:
 407         {
 408             p_sys->subtitle_delaybookmarks.i_time_audio = mdate();
 409             DisplayMessage( p_vout, _("Sub sync: bookmarked audio time"));
 410             break;
 411         }
 412         case ACTIONID_SUBSYNC_MARKSUB:
 413             if( p_input )
 414             {
 415                 vlc_value_t val, list, list2;
 416                 int i_count;
 417                 var_Get( p_input, "spu-es", &val );
 418
 419                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 420                             &list, &list2 );
 421                 i_count = list.p_list->i_count;
 422                 if( i_count < 1 || val.i_int < 0 )
 423                 {
 424                     DisplayMessage( p_vout, _("No active subtitle") );
 425                     var_FreeList( &list, &list2 );
 426                     break;
 427                 }
 428                 p_sys->subtitle_delaybookmarks.i_time_subtitle = mdate();
 429                 DisplayMessage( p_vout,
 430                                 _("Sub sync: bookmarked subtitle time"));
 431                 var_FreeList( &list, &list2 );
 432             }
 433             break;
 434         case ACTIONID_SUBSYNC_APPLY:
 435         {
 436             /* Warning! Can yield a pause in the playback.
 437              * For example, the following succession of actions will yield a 5 second delay :
 438              * - Pressing Shift-H (ACTIONID_SUBSYNC_MARKAUDIO)
 439              * - wait 5 second
 440              * - Press Shift-J (ACTIONID_SUBSYNC_MARKSUB)
 441              * - Press Shift-K (ACTIONID_SUBSYNC_APPLY)
 442              * --> 5 seconds pause
 443              * This is due to var_SetTime() (and ultimately UpdatePtsDelay())
 444              * which causes the video to pause for an equivalent duration
 445              * (This problem is also present in the "Track synchronization" window) */
 446             if ( p_input )
 447             {
 448                 if ( (p_sys->subtitle_delaybookmarks.i_time_audio == 0) || (p_sys->subtitle_delaybookmarks.i_time_subtitle == 0) )
 449                 {
 450                     DisplayMessage( p_vout, _( "Sub sync: set bookmarks first!" ) );
 451                 }
 452                 else
 453                 {
 454                     int64_t i_current_subdelay = var_GetTime( p_input, "spu-delay" );
 455                     int64_t i_additional_subdelay = p_sys->subtitle_delaybookmarks.i_time_audio - p_sys->subtitle_delaybookmarks.i_time_subtitle;
 456                     int64_t i_total_subdelay = i_current_subdelay + i_additional_subdelay;
 457                     var_SetTime( p_input, "spu-delay", i_total_subdelay);
 458                     ClearChannels( p_intf, p_vout );
 459                     DisplayMessage( p_vout, _( "Sub sync: corrected %i ms (total delay = %i ms)" ),
 460                                             (int)(i_additional_subdelay / 1000),
 461                                             (int)(i_total_subdelay / 1000) );
 462                     p_sys->subtitle_delaybookmarks.i_time_audio = 0;
 463                     p_sys->subtitle_delaybookmarks.i_time_subtitle = 0;
 464                 }
 465             }
 466             break;
 467         }
 468         case ACTIONID_SUBSYNC_RESET:
 469         {
 470             var_SetTime( p_input, "spu-delay", 0);
 471             ClearChannels( p_intf, p_vout );
 472             DisplayMessage( p_vout, _( "Sub sync: delay reset" ) );
 473             p_sys->subtitle_delaybookmarks.i_time_audio = 0;
 474             p_sys->subtitle_delaybookmarks.i_time_subtitle = 0;
 475             break;
 476         }
 477
 478         case ACTIONID_SUBDELAY_DOWN:
 479         case ACTIONID_SUBDELAY_UP:
 480         {
 481             int diff = (i_action == ACTIONID_SUBDELAY_UP) ? 50000 : -50000;
 482             if( p_input )
 483             {
 484                 vlc_value_t val, list, list2;
 485                 int i_count;
 486                 var_Get( p_input, "spu-es", &val );
 487
 488                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 489                             &list, &list2 );
 490                 i_count = list.p_list->i_count;
 491                 if( i_count < 1 || val.i_int < 0 )
 492                 {
 493                     DisplayMessage( p_vout, _("No active subtitle") );
 494                     var_FreeList( &list, &list2 );
 495                     break;
 496                 }
 497                 int64_t i_delay = var_GetTime( p_input, "spu-delay" ) + diff;
 498
 499                 var_SetTime( p_input, "spu-delay", i_delay );
 500                 ClearChannels( p_intf, p_vout );
 501                 DisplayMessage( p_vout, _( "Subtitle delay %i ms" ),
 502                                 (int)(i_delay/1000) );
 503                 var_FreeList( &list, &list2 );
 504             }
 505             break;
 506         }
 507         case ACTIONID_AUDIODELAY_DOWN:
 508         case ACTIONID_AUDIODELAY_UP:
 509         {
 510             int diff = (i_action == ACTIONID_AUDIODELAY_UP) ? 50000 : -50000;
 511             if( p_input )
 512             {
 513                 int64_t i_delay = var_GetTime( p_input, "audio-delay" ) + diff;
 514
 515                 var_SetTime( p_input, "audio-delay", i_delay );
 516                 ClearChannels( p_intf, p_vout );
 517                 DisplayMessage( p_vout, _( "Audio delay %i ms" ),
 518                                  (int)(i_delay/1000) );
 519             }
 520             break;
 521         }
 522
 523         case ACTIONID_AUDIO_TRACK:
 524             if( p_input )
 525             {
 526                 vlc_value_t val, list, list2;
 527                 int i_count, i;
 528                 var_Get( p_input, "audio-es", &val );
 529                 var_Change( p_input, "audio-es", VLC_VAR_GETCHOICES,
 530                             &list, &list2 );
 531                 i_count = list.p_list->i_count;
 532                 if( i_count > 1 )
 533                 {
 534                     for( i = 0; i < i_count; i++ )
 535                     {
 536                         if( val.i_int == list.p_list->p_values[i].i_int )
 537                         {
 538                             break;
 539                         }
 540                     }
 541                     /* value of audio-es was not in choices list */
 542                     if( i == i_count )
 543                     {
 544                         msg_Warn( p_input,
 545                                   "invalid current audio track, selecting 0" );
 546                         i = 0;
 547                     }
 548                     else if( i == i_count - 1 )
 549                         i = 1;
 550                     else
 551                         i++;
 552                     var_Set( p_input, "audio-es", list.p_list->p_values[i] );
 553                     DisplayMessage( p_vout, _("Audio track: %s"),
 554                                     list2.p_list->p_values[i].psz_string );
 555                 }
 556                 var_FreeList( &list, &list2 );
 557             }
 558             break;
 559         case ACTIONID_SUBTITLE_TRACK:
 560             if( p_input )
 561             {
 562                 vlc_value_t val, list, list2;
 563                 int i_count, i;
 564                 var_Get( p_input, "spu-es", &val );
 565
 566                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 567                             &list, &list2 );
 568                 i_count = list.p_list->i_count;
 569                 if( i_count <= 1 )
 570                 {
 571                     DisplayMessage( p_vout, _("Subtitle track: %s"),
 572                                     _("N/A") );
 573                     var_FreeList( &list, &list2 );
 574                     break;
 575                 }
 576                 for( i = 0; i < i_count; i++ )
 577                 {
 578                     if( val.i_int == list.p_list->p_values[i].i_int )
 579                     {
 580                         break;
 581                     }
 582                 }
 583                 /* value of spu-es was not in choices list */
 584                 if( i == i_count )
 585                 {
 586                     msg_Warn( p_input,
 587                               "invalid current subtitle track, selecting 0" );
 588                     i = 0;
 589                 }
 590                 else if( i == i_count - 1 )
 591                     i = 0;
 592                 else
 593                     i++;
 594                 var_SetInteger( p_input, "spu-es", list.p_list->p_values[i].i_int );
 595                 var_SetInteger( p_input, "spu-choice", list.p_list->p_values[i].i_int );
 596                 DisplayMessage( p_vout, _("Subtitle track: %s"),
 597                                 list2.p_list->p_values[i].psz_string );
 598                 var_FreeList( &list, &list2 );
 599             }
 600             break;
 601         case ACTIONID_SUBTITLE_TOGGLE:
 602             if( p_input )
 603             {
 604                 vlc_value_t list, list2;
 605                 int i_count, i_sel_index, i_sel_id, i_old_id, i_new_index;
 606                 i_old_id = var_GetInteger( p_input, "spu-es" );
 607                 i_sel_id = var_GetInteger( p_input, "spu-choice" );
 608
 609                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 610                             &list, &list2 );
 611                 i_count = list.p_list->i_count;
 612                 if( i_count <= 1 )
 613                 {
 614                     DisplayMessage( p_vout, _("Subtitle track: %s"),
 615                                     _("N/A") );
 616                     var_FreeList( &list, &list2 );
 617                     break;
 618                 }
 619                 for( i_sel_index = 0; i_sel_index < i_count; i_sel_index++ )
 620                 {
 621                     if( i_sel_id == list.p_list->p_values[i_sel_index].i_int )
 622                     {
 623                         break;
 624                     }
 625                 }
 626                 /* if there is nothing to toggle choose the first track */
 627                 if( !i_sel_index ) {
 628                     i_sel_index = 1;
 629                     i_sel_id = list.p_list->p_values[1].i_int;
 630                     var_SetInteger( p_input, "spu-choice", i_sel_id );
 631                 }
 632
 633                 i_new_index = 0;
 634                 if( i_old_id != i_sel_id )
 635                 {
 636                     if( i_sel_index >= i_count )
 637                     {
 638                         var_SetInteger( p_input, "spu-choice", list.p_list->p_values[0].i_int );
 639                     }
 640                     else
 641                     {
 642                         i_new_index = i_sel_index;
 643                     }
 644                 }
 645                 var_SetInteger( p_input, "spu-es", list.p_list->p_values[i_new_index].i_int );
 646                 DisplayMessage( p_vout, _("Subtitle track: %s"),
 647                                 list2.p_list->p_values[i_new_index].psz_string );
 648                 var_FreeList( &list, &list2 );
 649             }
 650             break;
 651         case ACTIONID_PROGRAM_SID_NEXT:
 652         case ACTIONID_PROGRAM_SID_PREV:
 653             if( p_input )
 654             {
 655                 vlc_value_t val, list, list2;
 656                 int i_count, i;
 657                 var_Get( p_input, "program", &val );
 658
 659                 var_Change( p_input, "program", VLC_VAR_GETCHOICES,
 660                             &list, &list2 );
 661                 i_count = list.p_list->i_count;
 662                 if( i_count <= 1 )
 663                 {
 664                     DisplayMessage( p_vout, _("Program Service ID: %s"),
 665                                     _("N/A") );
 666                     var_FreeList( &list, &list2 );
 667                     break;
 668                 }
 669                 for( i = 0; i < i_count; i++ )
 670                 {
 671                     if( val.i_int == list.p_list->p_values[i].i_int )
 672                     {
 673                         break;
 674                     }
 675                 }
 676                 /* value of program sid was not in choices list */
 677                 if( i == i_count )
 678                 {
 679                     msg_Warn( p_input,
 680                               "invalid current program SID, selecting 0" );
 681                     i = 0;
 682                 }
 683                 else if( i_action == ACTIONID_PROGRAM_SID_NEXT ) {
 684                     if( i == i_count - 1 )
 685                         i = 0;
 686                     else
 687                         i++;
 688                     }
 689                 else { /* ACTIONID_PROGRAM_SID_PREV */
 690                     if( i == 0 )
 691                         i = i_count - 1;
 692                     else
 693                         i--;
 694                     }
 695                 var_Set( p_input, "program", list.p_list->p_values[i] );
 696                 DisplayMessage( p_vout, _("Program Service ID: %s"),
 697                                 list2.p_list->p_values[i].psz_string );
 698                 var_FreeList( &list, &list2 );
 699             }
 700             break;
 701
 702         case ACTIONID_JUMP_BACKWARD_EXTRASHORT:
 703         case ACTIONID_JUMP_FORWARD_EXTRASHORT:
 704         case ACTIONID_JUMP_BACKWARD_SHORT:
 705         case ACTIONID_JUMP_FORWARD_SHORT:
 706         case ACTIONID_JUMP_BACKWARD_MEDIUM:
 707         case ACTIONID_JUMP_FORWARD_MEDIUM:
 708         case ACTIONID_JUMP_BACKWARD_LONG:
 709         case ACTIONID_JUMP_FORWARD_LONG:
 710         {
 711             if( p_input == NULL || !var_GetBool( p_input, "can-seek" ) )
 712                 break;
 713
 714             const char *varname;
 715             int sign = +1;
 716             switch( i_action )
 717             {
 718                 case ACTIONID_JUMP_BACKWARD_EXTRASHORT:
 719                     sign = -1;
 720                 case ACTIONID_JUMP_FORWARD_EXTRASHORT:
 721                     varname = "extrashort-jump-size";
 722                     break;
 723                 case ACTIONID_JUMP_BACKWARD_SHORT:
 724                     sign = -1;
 725                 case ACTIONID_JUMP_FORWARD_SHORT:
 726                     varname = "short-jump-size";
 727                     break;
 728                 case ACTIONID_JUMP_BACKWARD_MEDIUM:
 729                     sign = -1;
 730                 case ACTIONID_JUMP_FORWARD_MEDIUM:
 731                     varname = "medium-jump-size";
 732                     break;
 733                 case ACTIONID_JUMP_BACKWARD_LONG:
 734                     sign = -1;
 735                 case ACTIONID_JUMP_FORWARD_LONG:
 736                     varname = "long-jump-size";
 737                     break;
 738             }
 739
 740             mtime_t it = var_InheritInteger( p_input, varname );
 741             if( it < 0 )
 742                 break;
 743             var_SetTime( p_input, "time-offset", it * sign * CLOCK_FREQ );
 744             DisplayPosition( p_intf, p_vout, p_input );
 745             break;
 746         }
 747
 748         /* Input navigation */
 749         case ACTIONID_TITLE_PREV:
 750             if( p_input )
 751                 var_TriggerCallback( p_input, "prev-title" );
 752             break;
 753         case ACTIONID_TITLE_NEXT:
 754             if( p_input )
 755                 var_TriggerCallback( p_input, "next-title" );
 756             break;
 757         case ACTIONID_CHAPTER_PREV:
 758             if( p_input )
 759                 var_TriggerCallback( p_input, "prev-chapter" );
 760             break;
 761         case ACTIONID_CHAPTER_NEXT:
 762             if( p_input )
 763                 var_TriggerCallback( p_input, "next-chapter" );
 764             break;
 765         case ACTIONID_DISC_MENU:
 766             if( p_input )
 767                 var_SetInteger( p_input, "title  0", 2 );
 768             break;
 769         case ACTIONID_NAV_ACTIVATE:
 770         case ACTIONID_NAV_UP:
 771         case ACTIONID_NAV_DOWN:
 772         case ACTIONID_NAV_LEFT:
 773         case ACTIONID_NAV_RIGHT:
 774             if( p_input )
 775                 input_Control( p_input, i_action - ACTIONID_NAV_ACTIVATE
 776                                + INPUT_NAV_ACTIVATE, NULL );
 777             break;
 778
 779         /* Video Output actions */
 780         case ACTIONID_SNAPSHOT:
 781             if( p_vout )
 782                 var_TriggerCallback( p_vout, "video-snapshot" );
 783             break;
 784
 785         case ACTIONID_TOGGLE_FULLSCREEN:
 786         {
 787             if( p_vout )
 788             {
 789                 bool fs = var_ToggleBool( p_vout, "fullscreen" );
 790                 var_SetBool( p_playlist, "fullscreen", fs );
 791             }
 792             else
 793                 var_ToggleBool( p_playlist, "fullscreen" );
 794             break;
 795         }
 796
 797         case ACTIONID_LEAVE_FULLSCREEN:
 798             if( p_vout )
 799                 var_SetBool( p_vout, "fullscreen", false );
 800             var_SetBool( p_playlist, "fullscreen", false );
 801             break;
 802
 803         case ACTIONID_ASPECT_RATIO:
 804             if( p_vout )
 805             {
 806                 vlc_value_t val={0}, val_list, text_list;
 807                 var_Get( p_vout, "aspect-ratio", &val );
 808                 if( var_Change( p_vout, "aspect-ratio", VLC_VAR_GETCHOICES,
 809                                 &val_list, &text_list ) >= 0 )
 810                 {
 811                     int i;
 812                     for( i = 0; i < val_list.p_list->i_count; i++ )
 813                     {
 814                         if( !strcmp( val_list.p_list->p_values[i].psz_string,
 815                                      val.psz_string ) )
 816                         {
 817                             i++;
 818                             break;
 819                         }
 820                     }
 821                     if( i == val_list.p_list->i_count ) i = 0;
 822                     var_SetString( p_vout, "aspect-ratio",
 823                                    val_list.p_list->p_values[i].psz_string );
 824                     DisplayMessage( p_vout, _("Aspect ratio: %s"),
 825                                     text_list.p_list->p_values[i].psz_string );
 826
 827                     var_FreeList( &val_list, &text_list );
 828                 }
 829                 free( val.psz_string );
 830             }
 831             break;
 832
 833         case ACTIONID_CROP:
 834             if( p_vout )
 835             {
 836                 vlc_value_t val={0}, val_list, text_list;
 837                 var_Get( p_vout, "crop", &val );
 838                 if( var_Change( p_vout, "crop", VLC_VAR_GETCHOICES,
 839                                 &val_list, &text_list ) >= 0 )
 840                 {
 841                     int i;
 842                     for( i = 0; i < val_list.p_list->i_count; i++ )
 843                     {
 844                         if( !strcmp( val_list.p_list->p_values[i].psz_string,
 845                                      val.psz_string ) )
 846                         {
 847                             i++;
 848                             break;
 849                         }
 850                     }
 851                     if( i == val_list.p_list->i_count ) i = 0;
 852                     var_SetString( p_vout, "crop",
 853                                    val_list.p_list->p_values[i].psz_string );
 854                     DisplayMessage( p_vout, _("Crop: %s"),
 855                                     text_list.p_list->p_values[i].psz_string );
 856
 857                     var_FreeList( &val_list, &text_list );
 858                 }
 859                 free( val.psz_string );
 860             }
 861             break;
 862         case ACTIONID_CROP_TOP:
 863             if( p_vout )
 864                 var_IncInteger( p_vout, "crop-top" );
 865             break;
 866         case ACTIONID_UNCROP_TOP:
 867             if( p_vout )
 868                 var_DecInteger( p_vout, "crop-top" );
 869             break;
 870         case ACTIONID_CROP_BOTTOM:
 871             if( p_vout )
 872                 var_IncInteger( p_vout, "crop-bottom" );
 873             break;
 874         case ACTIONID_UNCROP_BOTTOM:
 875             if( p_vout )
 876                 var_DecInteger( p_vout, "crop-bottom" );
 877             break;
 878         case ACTIONID_CROP_LEFT:
 879             if( p_vout )
 880                 var_IncInteger( p_vout, "crop-left" );
 881             break;
 882         case ACTIONID_UNCROP_LEFT:
 883             if( p_vout )
 884                 var_DecInteger( p_vout, "crop-left" );
 885             break;
 886         case ACTIONID_CROP_RIGHT:
 887             if( p_vout )
 888                 var_IncInteger( p_vout, "crop-right" );
 889             break;
 890         case ACTIONID_UNCROP_RIGHT:
 891             if( p_vout )
 892                 var_DecInteger( p_vout, "crop-right" );
 893             break;
 894
 895          case ACTIONID_TOGGLE_AUTOSCALE:
 896             if( p_vout )
 897             {
 898                 float f_scalefactor = var_GetFloat( p_vout, "zoom" );
 899                 if ( f_scalefactor != 1.f )
 900                 {
 901                     var_SetFloat( p_vout, "zoom", 1.f );
 902                     DisplayMessage( p_vout, _("Zooming reset") );
 903                 }
 904                 else
 905                 {
 906                     bool b_autoscale = !var_GetBool( p_vout, "autoscale" );
 907                     var_SetBool( p_vout, "autoscale", b_autoscale );
 908                     if( b_autoscale )
 909                         DisplayMessage( p_vout, _("Scaled to screen") );
 910                     else
 911                         DisplayMessage( p_vout, _("Original Size") );
 912                 }
 913             }
 914             break;
 915         case ACTIONID_SCALE_UP:
 916             if( p_vout )
 917             {
 918                float f_scalefactor = var_GetFloat( p_vout, "zoom" );
 919
 920                if( f_scalefactor < 10.f )
 921                    f_scalefactor += .1f;
 922                var_SetFloat( p_vout, "zoom", f_scalefactor );
 923             }
 924             break;
 925         case ACTIONID_SCALE_DOWN:
 926             if( p_vout )
 927             {
 928                float f_scalefactor = var_GetFloat( p_vout, "zoom" );
 929
 930                if( f_scalefactor > .3f )
 931                    f_scalefactor -= .1f;
 932                var_SetFloat( p_vout, "zoom", f_scalefactor );
 933             }
 934             break;
 935
 936         case ACTIONID_ZOOM_QUARTER:
 937         case ACTIONID_ZOOM_HALF:
 938         case ACTIONID_ZOOM_ORIGINAL:
 939         case ACTIONID_ZOOM_DOUBLE:
 940             if( p_vout )
 941             {
 942                 float f;
 943                 switch( i_action )
 944                 {
 945                     case ACTIONID_ZOOM_QUARTER:  f = 0.25; break;
 946                     case ACTIONID_ZOOM_HALF:     f = 0.5;  break;
 947                     case ACTIONID_ZOOM_ORIGINAL: f = 1.;   break;
 948                      /*case ACTIONID_ZOOM_DOUBLE:*/
 949                     default:                     f = 2.;   break;
 950                 }
 951                 var_SetFloat( p_vout, "zoom", f );
 952             }
 953             break;
 954         case ACTIONID_ZOOM:
 955         case ACTIONID_UNZOOM:
 956             if( p_vout )
 957             {
 958                 vlc_value_t val={0}, val_list, text_list;
 959                 var_Get( p_vout, "zoom", &val );
 960                 if( var_Change( p_vout, "zoom", VLC_VAR_GETCHOICES,
 961                                 &val_list, &text_list ) >= 0 )
 962                 {
 963                     int i;
 964                     for( i = 0; i < val_list.p_list->i_count; i++ )
 965                     {
 966                         if( val_list.p_list->p_values[i].f_float
 967                            == val.f_float )
 968                         {
 969                             if( i_action == ACTIONID_ZOOM )
 970                                 i++;
 971                             else /* ACTIONID_UNZOOM */
 972                                 i--;
 973                             break;
 974                         }
 975                     }
 976                     if( i == val_list.p_list->i_count ) i = 0;
 977                     if( i == -1 ) i = val_list.p_list->i_count-1;
 978                     var_SetFloat( p_vout, "zoom",
 979                                   val_list.p_list->p_values[i].f_float );
 980                     DisplayMessage( p_vout, _("Zoom mode: %s"),
 981                                     text_list.p_list->p_values[i].psz_string );
 982
 983                     var_FreeList( &val_list, &text_list );
 984                 }
 985             }
 986             break;
 987
 988         case ACTIONID_DEINTERLACE:
 989             if( p_vout )
 990             {
 991                 int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
 992                 if( i_deinterlace != 0 )
 993                 {
 994                     var_SetInteger( p_vout, "deinterlace", 0 );
 995                     DisplayMessage( p_vout, _("Deinterlace off") );
 996                 }
 997                 else
 998                 {
 999                     var_SetInteger( p_vout, "deinterlace", 1 );
1000
1001                     char *psz_mode = var_GetString( p_vout, "deinterlace-mode" );
1002                     vlc_value_t vlist, tlist;
1003                     if( psz_mode && !var_Change( p_vout, "deinterlace-mode", VLC_VAR_GETCHOICES, &vlist, &tlist ) )
1004                     {
1005                         const char *psz_text = NULL;
1006                         for( int i = 0; i < vlist.p_list->i_count; i++ )
1007                         {
1008                             if( !strcmp( vlist.p_list->p_values[i].psz_string, psz_mode ) )
1009                             {
1010                                 psz_text = tlist.p_list->p_values[i].psz_string;
1011                                 break;
1012                             }
1013                         }
1014                         DisplayMessage( p_vout, "%s (%s)", _("Deinterlace on"),
1015                                         psz_text ? psz_text : psz_mode );
1016
1017                         var_FreeList( &vlist, &tlist );
1018                     }
1019                     free( psz_mode );
1020                 }
1021             }
1022             break;
1023         case ACTIONID_DEINTERLACE_MODE:
1024             if( p_vout )
1025             {
1026                 char *psz_mode = var_GetString( p_vout, "deinterlace-mode" );
1027                 vlc_value_t vlist, tlist;
1028                 if( psz_mode && !var_Change( p_vout, "deinterlace-mode", VLC_VAR_GETCHOICES, &vlist, &tlist ))
1029                 {
1030                     const char *psz_text = NULL;
1031                     int i;
1032                     for( i = 0; i < vlist.p_list->i_count; i++ )
1033                     {
1034                         if( !strcmp( vlist.p_list->p_values[i].psz_string, psz_mode ) )
1035                         {
1036                             i++;
1037                             break;
1038                         }
1039                     }
1040                     if( i == vlist.p_list->i_count ) i = 0;
1041                     psz_text = tlist.p_list->p_values[i].psz_string;
1042                     var_SetString( p_vout, "deinterlace-mode", vlist.p_list->p_values[i].psz_string );
1043
1044                     int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
1045                     if( i_deinterlace != 0 )
1046                     {
1047                       DisplayMessage( p_vout, "%s (%s)", _("Deinterlace on"),
1048                                       psz_text ? psz_text : psz_mode );
1049                     }
1050                     else
1051                     {
1052                       DisplayMessage( p_vout, "%s (%s)", _("Deinterlace off"),
1053                                       psz_text ? psz_text : psz_mode );
1054                     }
1055
1056                     var_FreeList( &vlist, &tlist );
1057                 }
1058                 free( psz_mode );
1059             }
1060             break;
1061
1062         case ACTIONID_SUBPOS_DOWN:
1063         case ACTIONID_SUBPOS_UP:
1064         {
1065             if( p_input )
1066             {
1067                 vlc_value_t val, list, list2;
1068                 int i_count;
1069                 var_Get( p_input, "spu-es", &val );
1070
1071                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
1072                             &list, &list2 );
1073                 i_count = list.p_list->i_count;
1074                 if( i_count < 1 || val.i_int < 0 )
1075                 {
1076                     DisplayMessage( p_vout,
1077                                     _("Subtitle position: no active subtitle") );
1078                     var_FreeList( &list, &list2 );
1079                     break;
1080                 }
1081
1082                 int i_pos;
1083                 if( i_action == ACTIONID_SUBPOS_DOWN )
1084                     i_pos = var_DecInteger( p_vout, "sub-margin" );
1085                 else
1086                     i_pos = var_IncInteger( p_vout, "sub-margin" );
1087
1088                 ClearChannels( p_intf, p_vout );
1089                 DisplayMessage( p_vout, _( "Subtitle position %d px" ), i_pos );
1090                 var_FreeList( &list, &list2 );
1091             }
1092             break;
1093         }
1094
1095         /* Input + video output */
1096         case ACTIONID_POSITION:
1097             if( p_vout && vout_OSDEpg( p_vout, input_GetItem( p_input ) ) )
1098                 DisplayPosition( p_intf, p_vout, p_input );
1099             break;
1100     }
1101
1102     if( p_vout )
1103         vlc_object_release( p_vout );
1104     if( p_input )
1105         vlc_object_release( p_input );
1106     return VLC_SUCCESS;
1107 }
1108
1109 /*****************************************************************************
1110  * ActionEvent: callback for hotkey actions
1111  *****************************************************************************/
1112 static int ActionEvent( vlc_object_t *libvlc, char const *psz_var,
1113                         vlc_value_t oldval, vlc_value_t newval, void *p_data )
1114 {
1115     intf_thread_t *p_intf = (intf_thread_t *)p_data;
1116
1117     (void)libvlc;
1118     (void)psz_var;
1119     (void)oldval;
1120
1121     return PutAction( p_intf, newval.i_int );
1122 }
1123
1124 static void PlayBookmark( intf_thread_t *p_intf, int i_num )
1125 {
1126     char *psz_bookmark_name;
1127     if( asprintf( &psz_bookmark_name, "bookmark%i", i_num ) == -1 )
1128         return;
1129
1130     playlist_t *p_playlist = pl_Get( p_intf );
1131     char *psz_bookmark = var_CreateGetString( p_intf, psz_bookmark_name );
1132
1133     PL_LOCK;
1134     FOREACH_ARRAY( playlist_item_t *p_item, p_playlist->items )
1135         char *psz_uri = input_item_GetURI( p_item->p_input );
1136         if( !strcmp( psz_bookmark, psz_uri ) )
1137         {
1138             free( psz_uri );
1139             playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
1140                               NULL, p_item );
1141             break;
1142         }
1143         else
1144             free( psz_uri );
1145     FOREACH_END();
1146     PL_UNLOCK;
1147
1148     free( psz_bookmark );
1149     free( psz_bookmark_name );
1150 }
1151
1152 static void SetBookmark( intf_thread_t *p_intf, int i_num )
1153 {
1154     char *psz_bookmark_name;
1155     char *psz_uri = NULL;
1156     if( asprintf( &psz_bookmark_name, "bookmark%i", i_num ) == -1 )
1157         return;
1158
1159     playlist_t *p_playlist = pl_Get( p_intf );
1160     var_Create( p_intf, psz_bookmark_name,
1161                 VLC_VAR_STRING|VLC_VAR_DOINHERIT );
1162
1163     PL_LOCK;
1164     playlist_item_t * p_item = playlist_CurrentPlayingItem( p_playlist );
1165     if( p_item ) psz_uri = input_item_GetURI( p_item->p_input );
1166     PL_UNLOCK;
1167
1168     if( p_item )
1169     {
1170         config_PutPsz( p_intf, psz_bookmark_name, psz_uri);
1171         msg_Info( p_intf, "setting playlist bookmark %i to %s", i_num, psz_uri);
1172     }
1173
1174     free( psz_uri );
1175     free( psz_bookmark_name );
1176 }
1177
1178 static void DisplayPosition( intf_thread_t *p_intf, vout_thread_t *p_vout,
1179                              input_thread_t *p_input )
1180 {
1181     char psz_duration[MSTRTIME_MAX_SIZE];
1182     char psz_time[MSTRTIME_MAX_SIZE];
1183     vlc_value_t time, pos;
1184     mtime_t i_seconds;
1185
1186     if( p_vout == NULL ) return;
1187
1188     ClearChannels( p_intf, p_vout );
1189
1190     var_Get( p_input, "time", &time );
1191     i_seconds = time.i_time / 1000000;
1192     secstotimestr ( psz_time, i_seconds );
1193
1194     var_Get( p_input, "length", &time );
1195     if( time.i_time > 0 )
1196     {
1197         secstotimestr( psz_duration, time.i_time / 1000000 );
1198         DisplayMessage( p_vout, "%s / %s", psz_time, psz_duration );
1199     }
1200     else if( i_seconds > 0 )
1201     {
1202         DisplayMessage( p_vout, "%s", psz_time );
1203     }
1204
1205     if( var_GetBool( p_vout, "fullscreen" ) )
1206     {
1207         var_Get( p_input, "position", &pos );
1208         vout_OSDSlider( p_vout, p_intf->p_sys->slider_chan,
1209                         pos.f_float * 100, OSD_HOR_SLIDER );
1210     }
1211 }
1212
1213 static void DisplayVolume( intf_thread_t *p_intf, vout_thread_t *p_vout,
1214                            float vol )
1215 {
1216     if( p_vout == NULL )
1217         return;
1218     ClearChannels( p_intf, p_vout );
1219
1220     if( var_GetBool( p_vout, "fullscreen" ) )
1221         vout_OSDSlider( p_vout, p_intf->p_sys->slider_chan,
1222                         lroundf(vol * 100.f), OSD_VERT_SLIDER );
1223     DisplayMessage( p_vout, _( "Volume %ld%%" ), lroundf(vol * 100.f) );
1224 }
1225
1226 static void DisplayRate( vout_thread_t *p_vout, float f_rate )
1227 {
1228     DisplayMessage( p_vout, _("Speed: %.2fx"), (double) f_rate );
1229 }
1230
1231 static float AdjustRateFine( vlc_object_t *p_obj, const int i_dir )
1232 {
1233     const float f_rate_min = (float)INPUT_RATE_DEFAULT / INPUT_RATE_MAX;
1234     const float f_rate_max = (float)INPUT_RATE_DEFAULT / INPUT_RATE_MIN;
1235     float f_rate = var_GetFloat( p_obj, "rate" );
1236
1237     int i_sign = f_rate < 0 ? -1 : 1;
1238
1239     f_rate = floor( fabs(f_rate) / 0.1 + i_dir + 0.05 ) * 0.1;
1240
1241     if( f_rate < f_rate_min )
1242         f_rate = f_rate_min;
1243     else if( f_rate > f_rate_max )
1244         f_rate = f_rate_max;
1245     f_rate *= i_sign;
1246
1247     return f_rate;
1248 }
1249
1250 static void ClearChannels( intf_thread_t *p_intf, vout_thread_t *p_vout )
1251 {
1252     if( p_vout )
1253     {
1254         vout_FlushSubpictureChannel( p_vout, SPU_DEFAULT_CHANNEL );
1255         vout_FlushSubpictureChannel( p_vout, p_intf->p_sys->slider_chan );
1256     }
1257 }