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   1 /*****************************************************************************
   2  * vlcproc.hpp
   3  *****************************************************************************
   4  * Copyright (C) 2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Cyril Deguet     <asmax@via.ecp.fr>
   8  *          Olivier Teuli�e <ipkiss@via.ecp.fr>
   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 #ifndef VLCPROC_HPP
  26 #define VLCPROC_HPP
  27
  28 #include <set>
  29
  30 #include "../vars/equalizer.hpp"
  31 #include "../vars/playlist.hpp"
  32 #include "../vars/playtree.hpp"
  33 #include "../vars/time.hpp"
  34 #include "../vars/volume.hpp"
  35 #include "../utils/position.hpp"
  36 #include "../utils/var_text.hpp"
  37 #include "../commands/cmd_generic.hpp"
  38
  39 class OSTimer;
  40 class VarBool;
  41 struct aout_instance_t;
  42
  43
  44 /// Singleton object handling VLC internal state and playlist
  45 class VlcProc: public SkinObject
  46 {
  47     public:
  48         /// Get the instance of VlcProc
  49         /// Returns NULL if the initialization of the object failed
  50         static VlcProc *instance( intf_thread_t *pIntf );
  51
  52         /// Delete the instance of VlcProc
  53         static void destroy( intf_thread_t *pIntf );
  54
  55         /// Getter for the playlist variable
  56         Playlist &getPlaylistVar() { return *((Playlist*)m_cPlaylist.get()); }
  57
  58         /// Getter for the playtree variable
  59         Playtree &getPlaytreeVar() { return *((Playtree*)m_cPlaytree.get()); }
  60
  61         /// Getter for the time variable
  62         StreamTime &getTimeVar() { return *((StreamTime*)(m_cVarTime.get())); }
  63
  64         /// Getter for the volume variable
  65         Volume &getVolumeVar() { return *((Volume*)(m_cVarVolume.get())); }
  66
  67         /// Getter for the stream name variable
  68         VarText &getStreamNameVar()
  69            { return *((VarText*)(m_cVarStreamName.get())); }
  70
  71         /// Getter for the stream URI variable
  72         VarText &getStreamURIVar()
  73             { return *((VarText*)(m_cVarStreamURI.get())); }
  74
  75         /// Getter for the stream bitrate variable
  76         VarText &getStreamBitRateVar()
  77             { return *((VarText*)(m_cVarStreamBitRate.get())); }
  78
  79         /// Getter for the stream sample rate variable
  80         VarText &getStreamSampleRateVar()
  81             { return *((VarText*)(m_cVarStreamSampleRate.get())); }
  82
  83         /// Getter for the vout size variable
  84         VarBox &getVoutSizeVar() { return m_varVoutSize; }
  85
  86         /// Set the vout window handle
  87         void registerVoutWindow( void *pVoutWindow );
  88
  89         /// Unset the vout window handle
  90         void unregisterVoutWindow( void *pVoutWindow );
  91
  92         /// Indicate whether the embedded video output is currently used
  93         bool isVoutUsed() const { return m_pVout != NULL; }
  94
  95         /// If an embedded video output is used, drop it (i.e. tell it to stop
  96         /// using our window handle)
  97         void dropVout();
  98
  99     protected:
 100         // Protected because it is a singleton
 101         VlcProc( intf_thread_t *pIntf );
 102         virtual ~VlcProc();
 103
 104     private:
 105         /// Timer to call manage() regularly (via doManage())
 106         OSTimer *m_pTimer;
 107         /// Playlist variable
 108         VariablePtr m_cPlaylist;
 109         /// Playtree variable FIXME
 110         VariablePtr m_cPlaytree;
 111         VariablePtr m_cVarRandom;
 112         VariablePtr m_cVarLoop;
 113         VariablePtr m_cVarRepeat;
 114         /// Variable for current position of the stream
 115         VariablePtr m_cVarTime;
 116         /// Variable for audio volume
 117         VariablePtr m_cVarVolume;
 118         /// Variable for current stream properties
 119         VariablePtr m_cVarStreamName;
 120         VariablePtr m_cVarStreamURI;
 121         VariablePtr m_cVarStreamBitRate;
 122         VariablePtr m_cVarStreamSampleRate;
 123         /// Variable for the "mute" state
 124         VariablePtr m_cVarMute;
 125         /// Variables related to the input
 126         VariablePtr m_cVarPlaying;
 127         VariablePtr m_cVarStopped;
 128         VariablePtr m_cVarPaused;
 129         VariablePtr m_cVarSeekable;
 130         /// Variables related to the vout
 131         VariablePtr m_cVarFullscreen;
 132         VarBox m_varVoutSize;
 133         VariablePtr m_cVarHasVout;
 134         /// Variables related to audio
 135         VariablePtr m_cVarHasAudio;
 136         /// Equalizer variables
 137         EqualizerBands m_varEqBands;
 138         VariablePtr m_cVarEqPreamp;
 139         VariablePtr m_cVarEqualizer;
 140         /// Variable for DVD detection
 141         VariablePtr m_cVarDvdActive;
 142
 143         /// Set of handles of vout windows
 144         /**
 145          * When changing the skin, the handles of the 2 skins coexist in the
 146          * set (but this is temporary, until the old theme is destroyed).
 147          */
 148         set<void *> m_handleSet;
 149         /// Vout thread
 150         vout_thread_t *m_pVout;
 151         /// Audio output
 152         aout_instance_t *m_pAout;
 153
 154         /**
 155          * Poll VLC internals to update the status (volume, current time in
 156          * the stream, current filename, play/pause/stop status, ...)
 157          * This function should be called regurlarly, since there is no
 158          * callback mechanism (yet?) to automatically update a variable when
 159          * the internal status changes
 160          */
 161         void manage();
 162
 163         /// Define the command that calls manage()
 164         DEFINE_CALLBACK( VlcProc, Manage );
 165
 166         /// Refresh audio variables
 167         void refreshAudio();
 168         /// Refresh playlist variables
 169         void refreshPlaylist();
 170         /// Refresh input variables
 171         void refreshInput();
 172
 173         /// Update the stream name variable
 174         void updateStreamName( playlist_t *p_playlist );
 175
 176         /// Callback for intf-change variable
 177         static int onIntfChange( vlc_object_t *pObj, const char *pVariable,
 178                                  vlc_value_t oldVal, vlc_value_t newVal,
 179                                  void *pParam );
 180
 181         /// Callback for intf-show variable
 182         static int onIntfShow( vlc_object_t *pObj, const char *pVariable,
 183                                vlc_value_t oldVal, vlc_value_t newVal,
 184                                void *pParam );
 185
 186         /// Callback for item-change variable
 187         static int onItemChange( vlc_object_t *pObj, const char *pVariable,
 188                                  vlc_value_t oldVal, vlc_value_t newVal,
 189                                  void *pParam );
 190
 191         /// Callback for item-change variable
 192         static int onItemAppend( vlc_object_t *pObj, const char *pVariable,
 193                                  vlc_value_t oldVal, vlc_value_t newVal,
 194                                  void *pParam );
 195
 196         /// Callback for item-change variable
 197         static int onItemDelete( vlc_object_t *pObj, const char *pVariable,
 198                                  vlc_value_t oldVal, vlc_value_t newVal,
 199                                  void *pParam );
 200
 201
 202         /// Callback for playlist-current variable
 203         static int onPlaylistChange( vlc_object_t *pObj, const char *pVariable,
 204                                      vlc_value_t oldVal, vlc_value_t newVal,
 205                                      void *pParam );
 206
 207         /// Callback for skins2-to-load variable
 208         static int onSkinToLoad( vlc_object_t *pObj, const char *pVariable,
 209                                  vlc_value_t oldVal, vlc_value_t newVal,
 210                                  void *pParam );
 211
 212         /// Callback for interaction variable
 213         static int onInteraction( vlc_object_t *pObj, const char *pVariable,
 214                                   vlc_value_t oldVal, vlc_value_t newVal,
 215                                   void *pParam );
 216
 217         /// Callback to request a vout window
 218         static void *getWindow( intf_thread_t *pIntf, vout_thread_t *pVout,
 219                                 int *pXHint, int *pYHint,
 220                                 unsigned int *pWidthHint,
 221                                 unsigned int *pHeightHint );
 222
 223         /// Callback to release a vout window
 224         static void releaseWindow( intf_thread_t *pIntf, void *pWindow );
 225
 226         /// Callback to change a vout window
 227         static int controlWindow( intf_thread_t *pIntf, void *pWindow,
 228                                   int query, va_list args );
 229
 230         /// Callback for equalizer-bands variable
 231         static int onEqBandsChange( vlc_object_t *pObj, const char *pVariable,
 232                                     vlc_value_t oldVal, vlc_value_t newVal,
 233                                     void *pParam );
 234
 235         /// Callback for equalizer-preamp variable
 236         static int onEqPreampChange( vlc_object_t *pObj, const char *pVariable,
 237                                      vlc_value_t oldVal, vlc_value_t newVal,
 238                                      void *pParam );
 239 };
 240
 241
 242 #endif