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             }
 353             playlist_TogglePause( p_playlist );
 354             break;
 355
 356         case ACTIONID_PLAY:
 357             if( p_input && var_GetFloat( p_input, "rate" ) != 1.f )
 358                 /* Return to normal speed */
 359                 var_SetFloat( p_input, "rate", 1.f );
 360             else
 361             {
 362                 ClearChannels( p_intf, p_vout );
 363                 DisplayIcon( p_vout, OSD_PLAY_ICON );
 364                 playlist_Play( p_playlist );
 365             }
 366             break;
 367
 368         /* Playlist + video output actions */
 369         case ACTIONID_WALLPAPER:
 370         {
 371             bool wp = var_ToggleBool( p_playlist, "video-wallpaper" );
 372             if( p_vout )
 373                 var_SetBool( p_vout, "video-wallpaper", wp );
 374             break;
 375         }
 376
 377         /* Input actions */
 378         case ACTIONID_PAUSE:
 379             if( p_input && var_GetInteger( p_input, "state" ) != PAUSE_S )
 380             {
 381                 ClearChannels( p_intf, p_vout );
 382                 DisplayIcon( p_vout, OSD_PAUSE_ICON );
 383                 var_SetInteger( p_input, "state", PAUSE_S );
 384             }
 385             break;
 386
 387         case ACTIONID_RECORD:
 388             if( p_input && var_GetBool( p_input, "can-record" ) )
 389             {
 390                 const bool on = var_ToggleBool( p_input, "record" );
 391                 DisplayMessage( p_vout, vlc_gettext(on
 392                                    ? N_("Recording") : N_("Recording done")) );
 393             }
 394             break;
 395
 396         case ACTIONID_FRAME_NEXT:
 397             if( p_input )
 398             {
 399                 var_TriggerCallback( p_input, "frame-next" );
 400                 DisplayMessage( p_vout, _("Next frame") );
 401             }
 402             break;
 403
 404         case ACTIONID_SUBSYNC_MARKAUDIO:
 405         {
 406             p_sys->subtitle_delaybookmarks.i_time_audio = mdate();
 407             DisplayMessage( p_vout, _("Sub sync: bookmarked audio time"));
 408             break;
 409         }
 410         case ACTIONID_SUBSYNC_MARKSUB:
 411             if( p_input )
 412             {
 413                 vlc_value_t val, list, list2;
 414                 int i_count;
 415                 var_Get( p_input, "spu-es", &val );
 416
 417                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 418                             &list, &list2 );
 419                 i_count = list.p_list->i_count;
 420                 if( i_count < 1 || val.i_int < 0 )
 421                 {
 422                     DisplayMessage( p_vout, _("No active subtitle") );
 423                     var_FreeList( &list, &list2 );
 424                     break;
 425                 }
 426                 p_sys->subtitle_delaybookmarks.i_time_subtitle = mdate();
 427                 DisplayMessage( p_vout,
 428                                 _("Sub sync: bookmarked subtitle time"));
 429                 var_FreeList( &list, &list2 );
 430             }
 431             break;
 432         case ACTIONID_SUBSYNC_APPLY:
 433         {
 434             /* Warning! Can yield a pause in the playback.
 435              * For example, the following succession of actions will yield a 5 second delay :
 436              * - Pressing Shift-H (ACTIONID_SUBSYNC_MARKAUDIO)
 437              * - wait 5 second
 438              * - Press Shift-J (ACTIONID_SUBSYNC_MARKSUB)
 439              * - Press Shift-K (ACTIONID_SUBSYNC_APPLY)
 440              * --> 5 seconds pause
 441              * This is due to var_SetTime() (and ultimately UpdatePtsDelay())
 442              * which causes the video to pause for an equivalent duration
 443              * (This problem is also present in the "Track synchronization" window) */
 444             if ( p_input )
 445             {
 446                 if ( (p_sys->subtitle_delaybookmarks.i_time_audio == 0) || (p_sys->subtitle_delaybookmarks.i_time_subtitle == 0) )
 447                 {
 448                     DisplayMessage( p_vout, _( "Sub sync: set bookmarks first!" ) );
 449                 }
 450                 else
 451                 {
 452                     int64_t i_current_subdelay = var_GetTime( p_input, "spu-delay" );
 453                     int64_t i_additional_subdelay = p_sys->subtitle_delaybookmarks.i_time_audio - p_sys->subtitle_delaybookmarks.i_time_subtitle;
 454                     int64_t i_total_subdelay = i_current_subdelay + i_additional_subdelay;
 455                     var_SetTime( p_input, "spu-delay", i_total_subdelay);
 456                     ClearChannels( p_intf, p_vout );
 457                     DisplayMessage( p_vout, _( "Sub sync: corrected %i ms (total delay = %i ms)" ),
 458                                             (int)(i_additional_subdelay / 1000),
 459                                             (int)(i_total_subdelay / 1000) );
 460                     p_sys->subtitle_delaybookmarks.i_time_audio = 0;
 461                     p_sys->subtitle_delaybookmarks.i_time_subtitle = 0;
 462                 }
 463             }
 464             break;
 465         }
 466         case ACTIONID_SUBSYNC_RESET:
 467         {
 468             var_SetTime( p_input, "spu-delay", 0);
 469             ClearChannels( p_intf, p_vout );
 470             DisplayMessage( p_vout, _( "Sub sync: delay reset" ) );
 471             p_sys->subtitle_delaybookmarks.i_time_audio = 0;
 472             p_sys->subtitle_delaybookmarks.i_time_subtitle = 0;
 473             break;
 474         }
 475
 476         case ACTIONID_SUBDELAY_DOWN:
 477         case ACTIONID_SUBDELAY_UP:
 478         {
 479             int diff = (i_action == ACTIONID_SUBDELAY_UP) ? 50000 : -50000;
 480             if( p_input )
 481             {
 482                 vlc_value_t val, list, list2;
 483                 int i_count;
 484                 var_Get( p_input, "spu-es", &val );
 485
 486                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 487                             &list, &list2 );
 488                 i_count = list.p_list->i_count;
 489                 if( i_count < 1 || val.i_int < 0 )
 490                 {
 491                     DisplayMessage( p_vout, _("No active subtitle") );
 492                     var_FreeList( &list, &list2 );
 493                     break;
 494                 }
 495                 int64_t i_delay = var_GetTime( p_input, "spu-delay" ) + diff;
 496
 497                 var_SetTime( p_input, "spu-delay", i_delay );
 498                 ClearChannels( p_intf, p_vout );
 499                 DisplayMessage( p_vout, _( "Subtitle delay %i ms" ),
 500                                 (int)(i_delay/1000) );
 501                 var_FreeList( &list, &list2 );
 502             }
 503             break;
 504         }
 505         case ACTIONID_AUDIODELAY_DOWN:
 506         case ACTIONID_AUDIODELAY_UP:
 507         {
 508             int diff = (i_action == ACTIONID_AUDIODELAY_UP) ? 50000 : -50000;
 509             if( p_input )
 510             {
 511                 int64_t i_delay = var_GetTime( p_input, "audio-delay" ) + diff;
 512
 513                 var_SetTime( p_input, "audio-delay", i_delay );
 514                 ClearChannels( p_intf, p_vout );
 515                 DisplayMessage( p_vout, _( "Audio delay %i ms" ),
 516                                  (int)(i_delay/1000) );
 517             }
 518             break;
 519         }
 520
 521         case ACTIONID_AUDIO_TRACK:
 522             if( p_input )
 523             {
 524                 vlc_value_t val, list, list2;
 525                 int i_count, i;
 526                 var_Get( p_input, "audio-es", &val );
 527                 var_Change( p_input, "audio-es", VLC_VAR_GETCHOICES,
 528                             &list, &list2 );
 529                 i_count = list.p_list->i_count;
 530                 if( i_count > 1 )
 531                 {
 532                     for( i = 0; i < i_count; i++ )
 533                     {
 534                         if( val.i_int == list.p_list->p_values[i].i_int )
 535                         {
 536                             break;
 537                         }
 538                     }
 539                     /* value of audio-es was not in choices list */
 540                     if( i == i_count )
 541                     {
 542                         msg_Warn( p_input,
 543                                   "invalid current audio track, selecting 0" );
 544                         i = 0;
 545                     }
 546                     else if( i == i_count - 1 )
 547                         i = 1;
 548                     else
 549                         i++;
 550                     var_Set( p_input, "audio-es", list.p_list->p_values[i] );
 551                     DisplayMessage( p_vout, _("Audio track: %s"),
 552                                     list2.p_list->p_values[i].psz_string );
 553                 }
 554                 var_FreeList( &list, &list2 );
 555             }
 556             break;
 557         case ACTIONID_SUBTITLE_TRACK:
 558             if( p_input )
 559             {
 560                 vlc_value_t val, list, list2;
 561                 int i_count, i;
 562                 var_Get( p_input, "spu-es", &val );
 563
 564                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 565                             &list, &list2 );
 566                 i_count = list.p_list->i_count;
 567                 if( i_count <= 1 )
 568                 {
 569                     DisplayMessage( p_vout, _("Subtitle track: %s"),
 570                                     _("N/A") );
 571                     var_FreeList( &list, &list2 );
 572                     break;
 573                 }
 574                 for( i = 0; i < i_count; i++ )
 575                 {
 576                     if( val.i_int == list.p_list->p_values[i].i_int )
 577                     {
 578                         break;
 579                     }
 580                 }
 581                 /* value of spu-es was not in choices list */
 582                 if( i == i_count )
 583                 {
 584                     msg_Warn( p_input,
 585                               "invalid current subtitle track, selecting 0" );
 586                     i = 0;
 587                 }
 588                 else if( i == i_count - 1 )
 589                     i = 0;
 590                 else
 591                     i++;
 592                 var_SetInteger( p_input, "spu-es", list.p_list->p_values[i].i_int );
 593                 var_SetInteger( p_input, "spu-choice", list.p_list->p_values[i].i_int );
 594                 DisplayMessage( p_vout, _("Subtitle track: %s"),
 595                                 list2.p_list->p_values[i].psz_string );
 596                 var_FreeList( &list, &list2 );
 597             }
 598             break;
 599         case ACTIONID_SUBTITLE_TOGGLE:
 600             if( p_input )
 601             {
 602                 vlc_value_t list, list2;
 603                 int i_count, i_sel_index, i_sel_id, i_old_id, i_new_index;
 604                 i_old_id = var_GetInteger( p_input, "spu-es" );
 605                 i_sel_id = var_GetInteger( p_input, "spu-choice" );
 606
 607                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
 608                             &list, &list2 );
 609                 i_count = list.p_list->i_count;
 610                 if( i_count <= 1 )
 611                 {
 612                     DisplayMessage( p_vout, _("Subtitle track: %s"),
 613                                     _("N/A") );
 614                     var_FreeList( &list, &list2 );
 615                     break;
 616                 }
 617                 for( i_sel_index = 0; i_sel_index < i_count; i_sel_index++ )
 618                 {
 619                     if( i_sel_id == list.p_list->p_values[i_sel_index].i_int )
 620                     {
 621                         break;
 622                     }
 623                 }
 624                 /* if there is nothing to toggle choose the first track */
 625                 if( !i_sel_index ) {
 626                     i_sel_index = 1;
 627                     i_sel_id = list.p_list->p_values[1].i_int;
 628                     var_SetInteger( p_input, "spu-choice", i_sel_id );
 629                 }
 630
 631                 i_new_index = 0;
 632                 if( i_old_id != i_sel_id )
 633                 {
 634                     if( i_sel_index >= i_count )
 635                     {
 636                         var_SetInteger( p_input, "spu-choice", list.p_list->p_values[0].i_int );
 637                     }
 638                     else
 639                     {
 640                         i_new_index = i_sel_index;
 641                     }
 642                 }
 643                 var_SetInteger( p_input, "spu-es", list.p_list->p_values[i_new_index].i_int );
 644                 DisplayMessage( p_vout, _("Subtitle track: %s"),
 645                                 list2.p_list->p_values[i_new_index].psz_string );
 646                 var_FreeList( &list, &list2 );
 647             }
 648             break;
 649         case ACTIONID_PROGRAM_SID_NEXT:
 650         case ACTIONID_PROGRAM_SID_PREV:
 651             if( p_input )
 652             {
 653                 vlc_value_t val, list, list2;
 654                 int i_count, i;
 655                 var_Get( p_input, "program", &val );
 656
 657                 var_Change( p_input, "program", VLC_VAR_GETCHOICES,
 658                             &list, &list2 );
 659                 i_count = list.p_list->i_count;
 660                 if( i_count <= 1 )
 661                 {
 662                     DisplayMessage( p_vout, _("Program Service ID: %s"),
 663                                     _("N/A") );
 664                     var_FreeList( &list, &list2 );
 665                     break;
 666                 }
 667                 for( i = 0; i < i_count; i++ )
 668                 {
 669                     if( val.i_int == list.p_list->p_values[i].i_int )
 670                     {
 671                         break;
 672                     }
 673                 }
 674                 /* value of program sid was not in choices list */
 675                 if( i == i_count )
 676                 {
 677                     msg_Warn( p_input,
 678                               "invalid current program SID, selecting 0" );
 679                     i = 0;
 680                 }
 681                 else if( i_action == ACTIONID_PROGRAM_SID_NEXT ) {
 682                     if( i == i_count - 1 )
 683                         i = 0;
 684                     else
 685                         i++;
 686                     }
 687                 else { /* ACTIONID_PROGRAM_SID_PREV */
 688                     if( i == 0 )
 689                         i = i_count - 1;
 690                     else
 691                         i--;
 692                     }
 693                 var_Set( p_input, "program", list.p_list->p_values[i] );
 694                 DisplayMessage( p_vout, _("Program Service ID: %s"),
 695                                 list2.p_list->p_values[i].psz_string );
 696                 var_FreeList( &list, &list2 );
 697             }
 698             break;
 699
 700         case ACTIONID_JUMP_BACKWARD_EXTRASHORT:
 701         case ACTIONID_JUMP_FORWARD_EXTRASHORT:
 702         case ACTIONID_JUMP_BACKWARD_SHORT:
 703         case ACTIONID_JUMP_FORWARD_SHORT:
 704         case ACTIONID_JUMP_BACKWARD_MEDIUM:
 705         case ACTIONID_JUMP_FORWARD_MEDIUM:
 706         case ACTIONID_JUMP_BACKWARD_LONG:
 707         case ACTIONID_JUMP_FORWARD_LONG:
 708         {
 709             if( p_input == NULL || !var_GetBool( p_input, "can-seek" ) )
 710                 break;
 711
 712             const char *varname;
 713             int sign = +1;
 714             switch( i_action )
 715             {
 716                 case ACTIONID_JUMP_BACKWARD_EXTRASHORT:
 717                     sign = -1;
 718                 case ACTIONID_JUMP_FORWARD_EXTRASHORT:
 719                     varname = "extrashort-jump-size";
 720                     break;
 721                 case ACTIONID_JUMP_BACKWARD_SHORT:
 722                     sign = -1;
 723                 case ACTIONID_JUMP_FORWARD_SHORT:
 724                     varname = "short-jump-size";
 725                     break;
 726                 case ACTIONID_JUMP_BACKWARD_MEDIUM:
 727                     sign = -1;
 728                 case ACTIONID_JUMP_FORWARD_MEDIUM:
 729                     varname = "medium-jump-size";
 730                     break;
 731                 case ACTIONID_JUMP_BACKWARD_LONG:
 732                     sign = -1;
 733                 case ACTIONID_JUMP_FORWARD_LONG:
 734                     varname = "long-jump-size";
 735                     break;
 736             }
 737
 738             mtime_t it = var_InheritInteger( p_input, varname );
 739             if( it < 0 )
 740                 break;
 741             var_SetTime( p_input, "time-offset", it * sign * CLOCK_FREQ );
 742             DisplayPosition( p_intf, p_vout, p_input );
 743             break;
 744         }
 745
 746         /* Input navigation */
 747         case ACTIONID_TITLE_PREV:
 748             if( p_input )
 749                 var_TriggerCallback( p_input, "prev-title" );
 750             break;
 751         case ACTIONID_TITLE_NEXT:
 752             if( p_input )
 753                 var_TriggerCallback( p_input, "next-title" );
 754             break;
 755         case ACTIONID_CHAPTER_PREV:
 756             if( p_input )
 757                 var_TriggerCallback( p_input, "prev-chapter" );
 758             break;
 759         case ACTIONID_CHAPTER_NEXT:
 760             if( p_input )
 761                 var_TriggerCallback( p_input, "next-chapter" );
 762             break;
 763         case ACTIONID_DISC_MENU:
 764             if( p_input )
 765                 var_SetInteger( p_input, "title  0", 2 );
 766             break;
 767         case ACTIONID_NAV_ACTIVATE:
 768         case ACTIONID_NAV_UP:
 769         case ACTIONID_NAV_DOWN:
 770         case ACTIONID_NAV_LEFT:
 771         case ACTIONID_NAV_RIGHT:
 772             if( p_input )
 773                 input_Control( p_input, i_action - ACTIONID_NAV_ACTIVATE
 774                                + INPUT_NAV_ACTIVATE, NULL );
 775             break;
 776
 777         /* Video Output actions */
 778         case ACTIONID_SNAPSHOT:
 779             if( p_vout )
 780                 var_TriggerCallback( p_vout, "video-snapshot" );
 781             break;
 782
 783         case ACTIONID_TOGGLE_FULLSCREEN:
 784         {
 785             if( p_vout )
 786             {
 787                 bool fs = var_ToggleBool( p_vout, "fullscreen" );
 788                 var_SetBool( p_playlist, "fullscreen", fs );
 789             }
 790             else
 791                 var_ToggleBool( p_playlist, "fullscreen" );
 792             break;
 793         }
 794
 795         case ACTIONID_LEAVE_FULLSCREEN:
 796             if( p_vout )
 797                 var_SetBool( p_vout, "fullscreen", false );
 798             var_SetBool( p_playlist, "fullscreen", false );
 799             break;
 800
 801         case ACTIONID_ASPECT_RATIO:
 802             if( p_vout )
 803             {
 804                 vlc_value_t val={0}, val_list, text_list;
 805                 var_Get( p_vout, "aspect-ratio", &val );
 806                 if( var_Change( p_vout, "aspect-ratio", VLC_VAR_GETCHOICES,
 807                                 &val_list, &text_list ) >= 0 )
 808                 {
 809                     int i;
 810                     for( i = 0; i < val_list.p_list->i_count; i++ )
 811                     {
 812                         if( !strcmp( val_list.p_list->p_values[i].psz_string,
 813                                      val.psz_string ) )
 814                         {
 815                             i++;
 816                             break;
 817                         }
 818                     }
 819                     if( i == val_list.p_list->i_count ) i = 0;
 820                     var_SetString( p_vout, "aspect-ratio",
 821                                    val_list.p_list->p_values[i].psz_string );
 822                     DisplayMessage( p_vout, _("Aspect ratio: %s"),
 823                                     text_list.p_list->p_values[i].psz_string );
 824
 825                     var_FreeList( &val_list, &text_list );
 826                 }
 827                 free( val.psz_string );
 828             }
 829             break;
 830
 831         case ACTIONID_CROP:
 832             if( p_vout )
 833             {
 834                 vlc_value_t val={0}, val_list, text_list;
 835                 var_Get( p_vout, "crop", &val );
 836                 if( var_Change( p_vout, "crop", VLC_VAR_GETCHOICES,
 837                                 &val_list, &text_list ) >= 0 )
 838                 {
 839                     int i;
 840                     for( i = 0; i < val_list.p_list->i_count; i++ )
 841                     {
 842                         if( !strcmp( val_list.p_list->p_values[i].psz_string,
 843                                      val.psz_string ) )
 844                         {
 845                             i++;
 846                             break;
 847                         }
 848                     }
 849                     if( i == val_list.p_list->i_count ) i = 0;
 850                     var_SetString( p_vout, "crop",
 851                                    val_list.p_list->p_values[i].psz_string );
 852                     DisplayMessage( p_vout, _("Crop: %s"),
 853                                     text_list.p_list->p_values[i].psz_string );
 854
 855                     var_FreeList( &val_list, &text_list );
 856                 }
 857                 free( val.psz_string );
 858             }
 859             break;
 860         case ACTIONID_CROP_TOP:
 861             if( p_vout )
 862                 var_IncInteger( p_vout, "crop-top" );
 863             break;
 864         case ACTIONID_UNCROP_TOP:
 865             if( p_vout )
 866                 var_DecInteger( p_vout, "crop-top" );
 867             break;
 868         case ACTIONID_CROP_BOTTOM:
 869             if( p_vout )
 870                 var_IncInteger( p_vout, "crop-bottom" );
 871             break;
 872         case ACTIONID_UNCROP_BOTTOM:
 873             if( p_vout )
 874                 var_DecInteger( p_vout, "crop-bottom" );
 875             break;
 876         case ACTIONID_CROP_LEFT:
 877             if( p_vout )
 878                 var_IncInteger( p_vout, "crop-left" );
 879             break;
 880         case ACTIONID_UNCROP_LEFT:
 881             if( p_vout )
 882                 var_DecInteger( p_vout, "crop-left" );
 883             break;
 884         case ACTIONID_CROP_RIGHT:
 885             if( p_vout )
 886                 var_IncInteger( p_vout, "crop-right" );
 887             break;
 888         case ACTIONID_UNCROP_RIGHT:
 889             if( p_vout )
 890                 var_DecInteger( p_vout, "crop-right" );
 891             break;
 892
 893          case ACTIONID_TOGGLE_AUTOSCALE:
 894             if( p_vout )
 895             {
 896                 float f_scalefactor = var_GetFloat( p_vout, "zoom" );
 897                 if ( f_scalefactor != 1.f )
 898                 {
 899                     var_SetFloat( p_vout, "zoom", 1.f );
 900                     DisplayMessage( p_vout, _("Zooming reset") );
 901                 }
 902                 else
 903                 {
 904                     bool b_autoscale = !var_GetBool( p_vout, "autoscale" );
 905                     var_SetBool( p_vout, "autoscale", b_autoscale );
 906                     if( b_autoscale )
 907                         DisplayMessage( p_vout, _("Scaled to screen") );
 908                     else
 909                         DisplayMessage( p_vout, _("Original Size") );
 910                 }
 911             }
 912             break;
 913         case ACTIONID_SCALE_UP:
 914             if( p_vout )
 915             {
 916                float f_scalefactor = var_GetFloat( p_vout, "zoom" );
 917
 918                if( f_scalefactor < 10.f )
 919                    f_scalefactor += .1f;
 920                var_SetFloat( p_vout, "zoom", f_scalefactor );
 921             }
 922             break;
 923         case ACTIONID_SCALE_DOWN:
 924             if( p_vout )
 925             {
 926                float f_scalefactor = var_GetFloat( p_vout, "zoom" );
 927
 928                if( f_scalefactor > .3f )
 929                    f_scalefactor -= .1f;
 930                var_SetFloat( p_vout, "zoom", f_scalefactor );
 931             }
 932             break;
 933
 934         case ACTIONID_ZOOM_QUARTER:
 935         case ACTIONID_ZOOM_HALF:
 936         case ACTIONID_ZOOM_ORIGINAL:
 937         case ACTIONID_ZOOM_DOUBLE:
 938             if( p_vout )
 939             {
 940                 float f;
 941                 switch( i_action )
 942                 {
 943                     case ACTIONID_ZOOM_QUARTER:  f = 0.25; break;
 944                     case ACTIONID_ZOOM_HALF:     f = 0.5;  break;
 945                     case ACTIONID_ZOOM_ORIGINAL: f = 1.;   break;
 946                      /*case ACTIONID_ZOOM_DOUBLE:*/
 947                     default:                     f = 2.;   break;
 948                 }
 949                 var_SetFloat( p_vout, "zoom", f );
 950             }
 951             break;
 952         case ACTIONID_ZOOM:
 953         case ACTIONID_UNZOOM:
 954             if( p_vout )
 955             {
 956                 vlc_value_t val={0}, val_list, text_list;
 957                 var_Get( p_vout, "zoom", &val );
 958                 if( var_Change( p_vout, "zoom", VLC_VAR_GETCHOICES,
 959                                 &val_list, &text_list ) >= 0 )
 960                 {
 961                     int i;
 962                     for( i = 0; i < val_list.p_list->i_count; i++ )
 963                     {
 964                         if( val_list.p_list->p_values[i].f_float
 965                            == val.f_float )
 966                         {
 967                             if( i_action == ACTIONID_ZOOM )
 968                                 i++;
 969                             else /* ACTIONID_UNZOOM */
 970                                 i--;
 971                             break;
 972                         }
 973                     }
 974                     if( i == val_list.p_list->i_count ) i = 0;
 975                     if( i == -1 ) i = val_list.p_list->i_count-1;
 976                     var_SetFloat( p_vout, "zoom",
 977                                   val_list.p_list->p_values[i].f_float );
 978                     DisplayMessage( p_vout, _("Zoom mode: %s"),
 979                                     text_list.p_list->p_values[i].psz_string );
 980
 981                     var_FreeList( &val_list, &text_list );
 982                 }
 983             }
 984             break;
 985
 986         case ACTIONID_DEINTERLACE:
 987             if( p_vout )
 988             {
 989                 int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
 990                 if( i_deinterlace != 0 )
 991                 {
 992                     var_SetInteger( p_vout, "deinterlace", 0 );
 993                     DisplayMessage( p_vout, _("Deinterlace off") );
 994                 }
 995                 else
 996                 {
 997                     var_SetInteger( p_vout, "deinterlace", 1 );
 998
 999                     char *psz_mode = var_GetString( p_vout, "deinterlace-mode" );
1000                     vlc_value_t vlist, tlist;
1001                     if( psz_mode && !var_Change( p_vout, "deinterlace-mode", VLC_VAR_GETCHOICES, &vlist, &tlist ) )
1002                     {
1003                         const char *psz_text = NULL;
1004                         for( int i = 0; i < vlist.p_list->i_count; i++ )
1005                         {
1006                             if( !strcmp( vlist.p_list->p_values[i].psz_string, psz_mode ) )
1007                             {
1008                                 psz_text = tlist.p_list->p_values[i].psz_string;
1009                                 break;
1010                             }
1011                         }
1012                         DisplayMessage( p_vout, "%s (%s)", _("Deinterlace on"),
1013                                         psz_text ? psz_text : psz_mode );
1014
1015                         var_FreeList( &vlist, &tlist );
1016                     }
1017                     free( psz_mode );
1018                 }
1019             }
1020             break;
1021         case ACTIONID_DEINTERLACE_MODE:
1022             if( p_vout )
1023             {
1024                 char *psz_mode = var_GetString( p_vout, "deinterlace-mode" );
1025                 vlc_value_t vlist, tlist;
1026                 if( psz_mode && !var_Change( p_vout, "deinterlace-mode", VLC_VAR_GETCHOICES, &vlist, &tlist ))
1027                 {
1028                     const char *psz_text = NULL;
1029                     int i;
1030                     for( i = 0; i < vlist.p_list->i_count; i++ )
1031                     {
1032                         if( !strcmp( vlist.p_list->p_values[i].psz_string, psz_mode ) )
1033                         {
1034                             i++;
1035                             break;
1036                         }
1037                     }
1038                     if( i == vlist.p_list->i_count ) i = 0;
1039                     psz_text = tlist.p_list->p_values[i].psz_string;
1040                     var_SetString( p_vout, "deinterlace-mode", vlist.p_list->p_values[i].psz_string );
1041
1042                     int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
1043                     if( i_deinterlace != 0 )
1044                     {
1045                       DisplayMessage( p_vout, "%s (%s)", _("Deinterlace on"),
1046                                       psz_text ? psz_text : psz_mode );
1047                     }
1048                     else
1049                     {
1050                       DisplayMessage( p_vout, "%s (%s)", _("Deinterlace off"),
1051                                       psz_text ? psz_text : psz_mode );
1052                     }
1053
1054                     var_FreeList( &vlist, &tlist );
1055                 }
1056                 free( psz_mode );
1057             }
1058             break;
1059
1060         case ACTIONID_SUBPOS_DOWN:
1061         case ACTIONID_SUBPOS_UP:
1062         {
1063             if( p_input )
1064             {
1065                 vlc_value_t val, list, list2;
1066                 int i_count;
1067                 var_Get( p_input, "spu-es", &val );
1068
1069                 var_Change( p_input, "spu-es", VLC_VAR_GETCHOICES,
1070                             &list, &list2 );
1071                 i_count = list.p_list->i_count;
1072                 if( i_count < 1 || val.i_int < 0 )
1073                 {
1074                     DisplayMessage( p_vout,
1075                                     _("Subtitle position: no active subtitle") );
1076                     var_FreeList( &list, &list2 );
1077                     break;
1078                 }
1079
1080                 int i_pos;
1081                 if( i_action == ACTIONID_SUBPOS_DOWN )
1082                     i_pos = var_DecInteger( p_vout, "sub-margin" );
1083                 else
1084                     i_pos = var_IncInteger( p_vout, "sub-margin" );
1085
1086                 ClearChannels( p_intf, p_vout );
1087                 DisplayMessage( p_vout, _( "Subtitle position %d px" ), i_pos );
1088                 var_FreeList( &list, &list2 );
1089             }
1090             break;
1091         }
1092
1093         /* Input + video output */
1094         case ACTIONID_POSITION:
1095             if( p_vout && vout_OSDEpg( p_vout, input_GetItem( p_input ) ) )
1096                 DisplayPosition( p_intf, p_vout, p_input );
1097             break;
1098     }
1099
1100     if( p_vout )
1101         vlc_object_release( p_vout );
1102     if( p_input )
1103         vlc_object_release( p_input );
1104     return VLC_SUCCESS;
1105 }
1106
1107 /*****************************************************************************
1108  * ActionEvent: callback for hotkey actions
1109  *****************************************************************************/
1110 static int ActionEvent( vlc_object_t *libvlc, char const *psz_var,
1111                         vlc_value_t oldval, vlc_value_t newval, void *p_data )
1112 {
1113     intf_thread_t *p_intf = (intf_thread_t *)p_data;
1114
1115     (void)libvlc;
1116     (void)psz_var;
1117     (void)oldval;
1118
1119     return PutAction( p_intf, newval.i_int );
1120 }
1121
1122 static void PlayBookmark( intf_thread_t *p_intf, int i_num )
1123 {
1124     char *psz_bookmark_name;
1125     if( asprintf( &psz_bookmark_name, "bookmark%i", i_num ) == -1 )
1126         return;
1127
1128     playlist_t *p_playlist = pl_Get( p_intf );
1129     char *psz_bookmark = var_CreateGetString( p_intf, psz_bookmark_name );
1130
1131     PL_LOCK;
1132     FOREACH_ARRAY( playlist_item_t *p_item, p_playlist->items )
1133         char *psz_uri = input_item_GetURI( p_item->p_input );
1134         if( !strcmp( psz_bookmark, psz_uri ) )
1135         {
1136             free( psz_uri );
1137             playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
1138                               NULL, p_item );
1139             break;
1140         }
1141         else
1142             free( psz_uri );
1143     FOREACH_END();
1144     PL_UNLOCK;
1145
1146     free( psz_bookmark );
1147     free( psz_bookmark_name );
1148 }
1149
1150 static void SetBookmark( intf_thread_t *p_intf, int i_num )
1151 {
1152     char *psz_bookmark_name;
1153     char *psz_uri = NULL;
1154     if( asprintf( &psz_bookmark_name, "bookmark%i", i_num ) == -1 )
1155         return;
1156
1157     playlist_t *p_playlist = pl_Get( p_intf );
1158     var_Create( p_intf, psz_bookmark_name,
1159                 VLC_VAR_STRING|VLC_VAR_DOINHERIT );
1160
1161     PL_LOCK;
1162     playlist_item_t * p_item = playlist_CurrentPlayingItem( p_playlist );
1163     if( p_item ) psz_uri = input_item_GetURI( p_item->p_input );
1164     PL_UNLOCK;
1165
1166     if( p_item )
1167     {
1168         config_PutPsz( p_intf, psz_bookmark_name, psz_uri);
1169         msg_Info( p_intf, "setting playlist bookmark %i to %s", i_num, psz_uri);
1170     }
1171
1172     free( psz_uri );
1173     free( psz_bookmark_name );
1174 }
1175
1176 static void DisplayPosition( intf_thread_t *p_intf, vout_thread_t *p_vout,
1177                              input_thread_t *p_input )
1178 {
1179     char psz_duration[MSTRTIME_MAX_SIZE];
1180     char psz_time[MSTRTIME_MAX_SIZE];
1181     vlc_value_t time, pos;
1182     mtime_t i_seconds;
1183
1184     if( p_vout == NULL ) return;
1185
1186     ClearChannels( p_intf, p_vout );
1187
1188     var_Get( p_input, "time", &time );
1189     i_seconds = time.i_time / 1000000;
1190     secstotimestr ( psz_time, i_seconds );
1191
1192     var_Get( p_input, "length", &time );
1193     if( time.i_time > 0 )
1194     {
1195         secstotimestr( psz_duration, time.i_time / 1000000 );
1196         DisplayMessage( p_vout, "%s / %s", psz_time, psz_duration );
1197     }
1198     else if( i_seconds > 0 )
1199     {
1200         DisplayMessage( p_vout, "%s", psz_time );
1201     }
1202
1203     if( var_GetBool( p_vout, "fullscreen" ) )
1204     {
1205         var_Get( p_input, "position", &pos );
1206         vout_OSDSlider( p_vout, p_intf->p_sys->slider_chan,
1207                         pos.f_float * 100, OSD_HOR_SLIDER );
1208     }
1209 }
1210
1211 static void DisplayVolume( intf_thread_t *p_intf, vout_thread_t *p_vout,
1212                            float vol )
1213 {
1214     if( p_vout == NULL )
1215         return;
1216     ClearChannels( p_intf, p_vout );
1217
1218     if( var_GetBool( p_vout, "fullscreen" ) )
1219         vout_OSDSlider( p_vout, p_intf->p_sys->slider_chan,
1220                         lroundf(vol * 100.f), OSD_VERT_SLIDER );
1221     DisplayMessage( p_vout, _( "Volume %ld%%" ), lroundf(vol * 100.f) );
1222 }
1223
1224 static void DisplayRate( vout_thread_t *p_vout, float f_rate )
1225 {
1226     DisplayMessage( p_vout, _("Speed: %.2fx"), (double) f_rate );
1227 }
1228
1229 static float AdjustRateFine( vlc_object_t *p_obj, const int i_dir )
1230 {
1231     const float f_rate_min = (float)INPUT_RATE_DEFAULT / INPUT_RATE_MAX;
1232     const float f_rate_max = (float)INPUT_RATE_DEFAULT / INPUT_RATE_MIN;
1233     float f_rate = var_GetFloat( p_obj, "rate" );
1234
1235     int i_sign = f_rate < 0 ? -1 : 1;
1236
1237     f_rate = floor( fabs(f_rate) / 0.1 + i_dir + 0.05 ) * 0.1;
1238
1239     if( f_rate < f_rate_min )
1240         f_rate = f_rate_min;
1241     else if( f_rate > f_rate_max )
1242         f_rate = f_rate_max;
1243     f_rate *= i_sign;
1244
1245     return f_rate;
1246 }
1247
1248 static void ClearChannels( intf_thread_t *p_intf, vout_thread_t *p_vout )
1249 {
1250     if( p_vout )
1251     {
1252         vout_FlushSubpictureChannel( p_vout, SPU_DEFAULT_CHANNEL );
1253         vout_FlushSubpictureChannel( p_vout, p_intf->p_sys->slider_chan );
1254     }
1255 }