Fix the horrible mess that was anything related to sources and paths.
[ardour.git] / libs / ardour / ardour / source.h
index 9a9bccfc58487c1b6a7e1b17a8207443d31f8b64..7b5fc43659f45d6ec3856b44097da7be398adc34 100644 (file)
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #ifndef __ardour_source_h__
 #define __ardour_source_h__
 
-#include <list>
-#include <vector>
 #include <string>
-
-#include <time.h>
+#include <set>
 
 #include <sigc++/signal.h>
+#include <pbd/statefuldestructible.h> 
+#include <evoral/TimeConverter.hpp>
 
 #include <ardour/ardour.h>
-#include <ardour/stateful.h>
-#include <pbd/xml++.h>
-
-using std::list;
-using std::vector;
-using std::string;
+#include <ardour/session_object.h>
+#include <ardour/data_type.h>
+#include <ardour/readable.h>
 
 namespace ARDOUR {
 
-struct PeakData {
-    typedef Sample PeakDatum;
-
-    PeakDatum min;
-    PeakDatum max;
-};
-
-const jack_nframes_t frames_per_peak = 256;
+class Session;
+class Playlist;
 
-class Source : public Stateful, public sigc::trackable
+class Source : public SessionObject, public ARDOUR::Readable
 {
   public:
-       Source (bool announce=true);
-       Source (const XMLNode&);
-       virtual ~Source ();
-
-       const string& name() const { return _name; }
-       ARDOUR::id_t  id() const   { return _id; }
-
-       /* returns the number of items in this `source' */
-
-       virtual jack_nframes_t length() const {
-               return _length;
-       }
-
-       virtual jack_nframes_t read (Sample *dst, jack_nframes_t start, jack_nframes_t cnt, char * workbuf) const {
-               return 0;
-       }
-
-       virtual jack_nframes_t write (Sample *src, jack_nframes_t cnt, char * workbuf) {
-               return 0;
-       }
-
-       uint32_t use_cnt() const { return _use_cnt; }
-       void use ();
-       void release ();
+       enum Flag {
+               Writable = 0x1,
+               CanRename = 0x2,
+               Broadcast = 0x4,
+               Removable = 0x8,
+               RemovableIfEmpty = 0x10,
+               RemoveAtDestroy = 0x20,
+               NoPeakFile = 0x40,
+               Destructive = 0x80
+       };
 
-       virtual void mark_for_remove() = 0;
-       virtual void mark_streaming_write_completed () {}
+       Source (Session&, DataType type, const std::string& name, Flag flags=Flag(0));
+       Source (Session&, const XMLNode&);
+       
+       virtual ~Source ();
+       
+       DataType type() { return _type; }
 
        time_t timestamp() const { return _timestamp; }
        void stamp (time_t when) { _timestamp = when; }
+       
+       nframes_t length() const { return _length; }
+       
+       virtual const Glib::ustring& path() const = 0;
 
-       void set_captured_for (string str) { _captured_for = str; }
-       string captured_for() const { return _captured_for; }
-
-       uint32_t read_data_count() const { return _read_data_count; }
-       uint32_t write_data_count() const { return _write_data_count; }
+       virtual nframes_t natural_position() const { return 0; }
 
-       int  read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t start, jack_nframes_t cnt, double samples_per_unit) const;
-       int  build_peaks ();
-       bool peaks_ready (sigc::slot<void>, sigc::connection&) const;
+       void mark_for_remove();
+       
+       virtual void mark_streaming_write_started () {}
+       virtual void mark_streaming_write_completed () = 0;
 
-       static sigc::signal<void,Source*> SourceCreated;
-              
-       sigc::signal<void,Source *> GoingAway;
-       mutable sigc::signal<void>  PeaksReady;
-       mutable sigc::signal<void,jack_nframes_t,jack_nframes_t>  PeakRangeReady;
+       virtual void session_saved() {}
        
        XMLNode& get_state ();
        int set_state (const XMLNode&);
+       
+       bool         destructive() const       { return (_flags & Destructive); }
+       bool         writable () const         { return _flags & Writable; }
+       virtual bool set_destructive (bool yn) { return false; }
+       virtual bool length_mutable() const    { return false; }
+       
+       void use ()    { _in_use++; }
+       void disuse () { if (_in_use) { _in_use--; } }
+       
+       void add_playlist (boost::shared_ptr<ARDOUR::Playlist>);
+       void remove_playlist (boost::weak_ptr<ARDOUR::Playlist>);
 
+       uint32_t used() const;
 
-       static int  start_peak_thread ();
-       static void stop_peak_thread ();
+       static sigc::signal<void,Source*>             SourceCreated;
+       sigc::signal<void,boost::shared_ptr<Source> > Switched;
 
-       static void set_build_missing_peakfiles (bool yn) {
-               _build_missing_peakfiles = yn;
-       }
-       static void set_build_peakfiles (bool yn) {
-               _build_peakfiles = yn;
+       bool has_been_analysed() const;
+       virtual bool can_be_analysed() const { return false; } 
+       virtual void set_been_analysed (bool yn);
+       virtual bool check_for_analysis_data_on_disk();
+
+       sigc::signal<void> AnalysisChanged;
+       
+       AnalysisFeatureList transients;
+       std::string get_transients_path() const;
+       int load_transients (const std::string&);
+       
+       void update_length (nframes_t pos, nframes_t cnt);
+       
+       int64_t timeline_position() const { return _timeline_position; }
+       virtual void set_timeline_position (int64_t pos);
+       
+       void set_allow_remove_if_empty (bool yn);
+       
+       virtual const Evoral::TimeConverter<double, nframes_t>& time_converter() const {
+               return Evoral::IdentityConverter<double, nframes_t>();
        }
+       
+       Flag flags() const { return _flags; }
 
   protected:
-       static bool _build_missing_peakfiles;
-       static bool _build_peakfiles;
-
-       string            _name;
-       uint32_t     _use_cnt;
-       bool              _peaks_built;
-       mutable PBD::Lock _lock;
-       jack_nframes_t    _length;
-       bool               next_peak_clear_should_notify;
-       string             peakpath;
-       int                peakfile; /* fd */
-       time_t            _timestamp;
-       string            _captured_for;
-
-       mutable uint32_t _read_data_count;  // modified in read()
-       mutable uint32_t _write_data_count; // modified in write()
-
-       int initialize_peakfile (bool newfile, string path);
-       void build_peaks_from_scratch ();
-
-       int  do_build_peak (jack_nframes_t, jack_nframes_t);
-       virtual jack_nframes_t read_unlocked (Sample *dst, jack_nframes_t start, jack_nframes_t cnt, char * workbuf) const = 0;
-       virtual string peak_path(string audio_path) = 0;
-       virtual string old_peak_path(string audio_path) = 0;
-
-       static pthread_t peak_thread;
-       static bool      have_peak_thread;
-       static void*     peak_thread_work(void*);
-
-       static int peak_request_pipe[2];
-
-       struct PeakRequest {
-           enum Type {
-                   Build,
-                   Quit
-           };
-       };
-
-       static vector<Source*> pending_peak_sources;
-       static PBD::Lock pending_peak_sources_lock;
-
-       static void queue_for_peaks (Source&);
-       static void clear_queue_for_peaks ();
+       DataType            _type;
+       Flag                _flags;
+       time_t              _timestamp;
+       nframes_t           _length;
+       int64_t             _timeline_position;
+       bool                _analysed;
+       mutable Glib::Mutex _lock;
+       mutable Glib::Mutex _analysis_lock;
+       Glib::Mutex         _playlist_lock;
        
-       struct PeakBuildRecord {
-           jack_nframes_t frame;
-           jack_nframes_t cnt;
-
-           PeakBuildRecord (jack_nframes_t f, jack_nframes_t c) 
-                   : frame (f), cnt (c) {}
-           PeakBuildRecord (const PeakBuildRecord& other) {
-                   frame = other.frame;
-                   cnt = other.cnt;
-           }
-       };
-
-       list<Source::PeakBuildRecord *> pending_peak_builds;
+       typedef std::map<boost::shared_ptr<ARDOUR::Playlist>, uint32_t > PlaylistMap;
+       PlaylistMap _playlists;
 
   private:
-       ARDOUR::id_t _id;
-       
-       bool file_changed (string path);
+       uint32_t _in_use;
 };
 
 }