hvirtual/cinelerra/tracking.h

   1 #ifndef TRACKING_H
   2 #define TRACKING_H
   3
   4 #include <sys/time.h>
   5 #include <sys/types.h>
   6 #include <unistd.h>
   7
   8 #include "mwindow.inc"
   9 #include "mwindowgui.inc"
  10 #include "mutex.h"
  11 #include "playbackengine.inc"
  12 #include "thread.h"
  13 #include "timer.h"
  14
  15 class Tracking : public Thread
  16 {
  17 public:
  18         Tracking(MWindow *mwindow);
  19         virtual ~Tracking();
  20
  21         void create_objects();
  22         virtual int start_playback(double new_position);
  23         virtual int stop_playback();
  24
  25 // Called by the tracker to get the current position
  26         virtual PlaybackEngine* get_playback_engine();
  27         virtual double get_tracking_position();
  28 // Update position displayed
  29         virtual void update_tracker(double position);
  30 // Update meters
  31         virtual void update_meters(int64_t position);
  32         virtual void stop_meters();
  33         int get_pixel(double position);
  34
  35 // Erase cursor if it's visible.  Called by start_playback
  36 // Draw new cursor at last_position if invisible
  37         virtual void draw();
  38
  39
  40
  41         void run();
  42
  43 // Values to return from playback_engine to update_meter .
  44 // Use ArrayList to simplify module counting
  45         ArrayList<double> module_levels;
  46         int state;
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57         void show_playback_cursor(int64_t position);
  58         int wait_for_startup();
  59         int view_follows_playback;
  60 // Stop cursor loop when not playing
  61         Mutex pause_lock;
  62 // Exclude changes in state during the main loop
  63         Mutex loop_lock;
  64 // Exclude accesses to the cursor
  65         Mutex cursor_lock;
  66 // Delay until startup
  67         Mutex startup_lock;
  68         MWindow *mwindow;
  69         MWindowGUI *gui;
  70         double last_position;
  71         int follow_loop;
  72         int64_t current_offset;
  73         int reverse;
  74         int double_speed;
  75         Timer timer;
  76 // Pixel of last drawn cursor
  77         int pixel;
  78 // Cursor is visible
  79         int visible;
  80 };
  81
  82 #endif