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/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_track_h__
#define __ardour_track_h__
#include <boost/shared_ptr.hpp>
#include "ardour/interthread_info.h"
#include "ardour/recordable.h"
#include "ardour/route.h"
#include "ardour/public_diskstream.h"
namespace ARDOUR {
class Session;
class Playlist;
class RouteGroup;
class Source;
class Region;
class Diskstream;
class IO;
class MonitorControl;
class RecordEnableControl;
class RecordSafeControl;
/** A track is an route (bus) with a recordable diskstream and
* related objects relevant to tracking, playback and editing.
*
* Specifically a track has regions and playlist objects.
*/
class LIBARDOUR_API Track : public Route, public Recordable, public PublicDiskstream
{
public:
Track (Session&, std::string name, PresentationInfo::Flag f = PresentationInfo::Flag (0), TrackMode m = Normal, DataType default_type = DataType::AUDIO);
virtual ~Track ();
int init ();
bool set_name (const std::string& str);
void resync_track_name ();
TrackMode mode () const { return _mode; }
virtual int set_mode (TrackMode /*m*/) { return false; }
virtual bool can_use_mode (TrackMode /*m*/, bool& /*bounce_required*/) { return false; }
PBD::Signal0<void> TrackModeChanged;
boost::shared_ptr<MonitorControl> monitoring_control() const { return _monitoring_control; }
MonitorState monitoring_state () const;
MeterState metering_state () const;
virtual int no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
bool state_changing);
int silent_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
bool& need_butler);
virtual int roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
int declick, bool& need_butler) = 0;
bool needs_butler() const { return _needs_butler; }
virtual DataType data_type () const = 0;
bool can_record();
void use_new_diskstream ();
virtual boost::shared_ptr<Diskstream> create_diskstream() = 0;
virtual void set_diskstream (boost::shared_ptr<Diskstream>);
void set_latency_compensation (framecnt_t);
enum FreezeState {
NoFreeze,
Frozen,
UnFrozen
};
FreezeState freeze_state() const;
virtual void freeze_me (InterThreadInfo&) = 0;
virtual void unfreeze () = 0;
/** Test if the track can be bounced with the given settings.
* If sends/inserts/returns are present in the signal path or the given track
* has no audio outputs bouncing is not possible.
*
* @param endpoint the processor to tap the signal off (or nil for the top)
* @param include_endpoint include the given processor in the bounced audio.
* @return true if the track can be bounced, or false otherwise.
*/
virtual bool bounceable (boost::shared_ptr<Processor> endpoint, bool include_endpoint) const = 0;
/** bounce track from session start to session end to new region
*
* @param itt asynchronous progress report and cancel
* @return a new audio region (or nil in case of error)
*/
virtual boost::shared_ptr<Region> bounce (InterThreadInfo& itt) = 0;
/** Bounce the given range to a new audio region.
* @param start start time (in samples)
* @param end end time (in samples)
* @param itt asynchronous progress report and cancel
* @param endpoint the processor to tap the signal off (or nil for the top)
* @param include_endpoint include the given processor in the bounced audio.
* @return a new audio region (or nil in case of error)
*/
virtual boost::shared_ptr<Region> bounce_range (framepos_t start, framepos_t end, InterThreadInfo& itt,
boost::shared_ptr<Processor> endpoint, bool include_endpoint) = 0;
virtual int export_stuff (BufferSet& bufs, framepos_t start_frame, framecnt_t nframes,
boost::shared_ptr<Processor> endpoint, bool include_endpoint, bool for_export, bool for_freeze) = 0;
XMLNode& get_state();
XMLNode& get_template();
virtual int set_state (const XMLNode&, int version);
static void zero_diskstream_id_in_xml (XMLNode&);
boost::shared_ptr<AutomationControl> rec_enable_control() const { return _record_enable_control; }
boost::shared_ptr<AutomationControl> rec_safe_control() const { return _record_safe_control; }
int prep_record_enabled (bool);
bool can_be_record_enabled ();
bool can_be_record_safe ();
bool using_diskstream_id (PBD::ID) const;
void set_block_size (pframes_t);
/* PublicDiskstream interface */
boost::shared_ptr<Playlist> playlist ();
void request_input_monitoring (bool);
void ensure_input_monitoring (bool);
bool destructive () const;
std::list<boost::shared_ptr<Source> > & last_capture_sources ();
void set_capture_offset ();
std::string steal_write_source_name ();
void reset_write_sources (bool, bool force = false);
float playback_buffer_load () const;
float capture_buffer_load () const;
int do_refill ();
int do_flush (RunContext, bool force = false);
void set_pending_overwrite (bool);
int seek (framepos_t, bool complete_refill = false);
bool hidden () const;
int can_internal_playback_seek (framecnt_t);
int internal_playback_seek (framecnt_t);
void non_realtime_input_change ();
void non_realtime_locate (framepos_t);
void non_realtime_set_speed ();
int overwrite_existing_buffers ();
framecnt_t get_captured_frames (uint32_t n = 0) const;
int set_loop (Location *);
void transport_looped (framepos_t);
bool realtime_set_speed (double, bool);
void transport_stopped_wallclock (struct tm &, time_t, bool);
bool pending_overwrite () const;
double speed () const;
void prepare_to_stop (framepos_t, framepos_t);
void set_slaved (bool);
ChanCount n_channels ();
framepos_t get_capture_start_frame (uint32_t n = 0) const;
AlignStyle alignment_style () const;
AlignChoice alignment_choice () const;
framepos_t current_capture_start () const;
framepos_t current_capture_end () const;
void playlist_modified ();
int use_playlist (boost::shared_ptr<Playlist>);
void set_align_style (AlignStyle, bool force=false);
void set_align_choice (AlignChoice, bool force=false);
int use_copy_playlist ();
int use_new_playlist ();
void adjust_playback_buffering ();
void adjust_capture_buffering ();
PBD::Signal0<void> DiskstreamChanged;
PBD::Signal0<void> FreezeChange;
/* Emitted when our diskstream is set to use a different playlist */
PBD::Signal0<void> PlaylistChanged;
PBD::Signal0<void> SpeedChanged;
PBD::Signal0<void> AlignmentStyleChanged;
protected:
XMLNode& state (bool full);
boost::shared_ptr<Diskstream> _diskstream;
MeterPoint _saved_meter_point;
TrackMode _mode;
bool _needs_butler;
boost::shared_ptr<MonitorControl> _monitoring_control;
//private: (FIXME)
struct FreezeRecordProcessorInfo {
FreezeRecordProcessorInfo(XMLNode& st, boost::shared_ptr<Processor> proc)
: state (st), processor (proc) {}
XMLNode state;
boost::shared_ptr<Processor> processor;
PBD::ID id;
};
struct FreezeRecord {
FreezeRecord()
: have_mementos(false)
{}
~FreezeRecord();
boost::shared_ptr<Playlist> playlist;
std::vector<FreezeRecordProcessorInfo*> processor_info;
bool have_mementos;
FreezeState state;
};
virtual void set_state_part_two () = 0;
FreezeRecord _freeze_record;
XMLNode* pending_state;
bool _destructive;
void maybe_declick (BufferSet&, framecnt_t, int);
boost::shared_ptr<AutomationControl> _record_enable_control;
boost::shared_ptr<AutomationControl> _record_safe_control;
virtual void record_enable_changed (bool, PBD::Controllable::GroupControlDisposition);
virtual void record_safe_changed (bool, PBD::Controllable::GroupControlDisposition);
framecnt_t check_initial_delay (framecnt_t nframes, framepos_t&);
virtual void monitoring_changed (bool, PBD::Controllable::GroupControlDisposition);
private:
virtual boost::shared_ptr<Diskstream> diskstream_factory (XMLNode const &) = 0;
void diskstream_playlist_changed ();
void diskstream_speed_changed ();
void diskstream_alignment_style_changed ();
void parameter_changed (std::string const & p);
std::string _diskstream_name;
};
}; /* namespace ARDOUR*/
#endif /* __ardour_track_h__ */
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