#include "ardour/ardour.h"
#include "ardour/chan_count.h"
#include "ardour/session_object.h"
+#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
#include "ardour/utils.h"
#include "ardour/public_diskstream.h"
class Source;
class Session;
class Track;
-class Location;
+class Location;
+class BufferSet;
-class Diskstream : public SessionObject, public PublicDiskstream
+/** Parent class for classes which can stream data to and from disk.
+ * These are used by Tracks to get playback and put recorded data.
+ */
+class LIBARDOUR_API Diskstream : public SessionObject, public PublicDiskstream
{
public:
enum Flag {
Diskstream (Session &, const XMLNode&);
virtual ~Diskstream();
- bool set_name (const std::string& str);
+ virtual bool set_name (const std::string& str);
+ virtual bool set_write_source_name (const std::string& str);
+
+ std::string write_source_name () const {
+ if (_write_source_name.empty()) {
+ return name();
+ } else {
+ return _write_source_name;
+ }
+ }
+
+ virtual std::string steal_write_source_name () { return std::string(); }
boost::shared_ptr<ARDOUR::IO> io() const { return _io; }
void set_track (ARDOUR::Track *);
+ /** @return A number between 0 and 1, where 0 indicates that the playback buffer
+ * is dry (ie the disk subsystem could not keep up) and 1 indicates that the
+ * buffer is full.
+ */
virtual float playback_buffer_load() const = 0;
virtual float capture_buffer_load() const = 0;
void set_flag (Flag f) { _flags = Flag (_flags | f); }
void unset_flag (Flag f) { _flags = Flag (_flags & ~f); }
- AlignStyle alignment_style() const { return _alignment_style; }
- void set_align_style (AlignStyle);
- void set_persistent_align_style (AlignStyle a) { _persistent_alignment_style = a; }
+ AlignStyle alignment_style() const { return _alignment_style; }
+ AlignChoice alignment_choice() const { return _alignment_choice; }
+ void set_align_style (AlignStyle, bool force=false);
+ void set_align_choice (AlignChoice a, bool force=false);
- nframes_t roll_delay() const { return _roll_delay; }
- void set_roll_delay (nframes_t);
+ framecnt_t roll_delay() const { return _roll_delay; }
+ void set_roll_delay (framecnt_t);
bool record_enabled() const { return g_atomic_int_get (&_record_enabled); }
virtual void set_record_enabled (bool yn) = 0;
- virtual void get_input_sources () = 0;
bool destructive() const { return _flags & Destructive; }
virtual int set_destructive (bool /*yn*/) { return -1; }
ChanCount n_channels() { return _n_channels; }
- static nframes_t disk_io_frames() { return disk_io_chunk_frames; }
- static void set_disk_io_chunk_frames (uint32_t n) { disk_io_chunk_frames = n; }
+ static framecnt_t disk_io_frames() { return disk_io_chunk_frames; }
+ static void set_disk_io_chunk_frames (framecnt_t n) { disk_io_chunk_frames = n; }
/* Stateful */
- virtual XMLNode& get_state(void) = 0;
- virtual int set_state(const XMLNode&, int version) = 0;
+ virtual XMLNode& get_state(void);
+ virtual int set_state(const XMLNode&, int version);
- virtual void monitor_input (bool) {}
+ virtual void request_input_monitoring (bool) {}
+ virtual void ensure_input_monitoring (bool) {}
- nframes_t capture_offset() const { return _capture_offset; }
+ framecnt_t capture_offset() const { return _capture_offset; }
virtual void set_capture_offset ();
bool slaved() const { return _slaved; }
/** For non-butler contexts (allocates temporary working buffers) */
virtual int do_refill_with_alloc() = 0;
- virtual void set_block_size (nframes_t) = 0;
+ virtual void set_block_size (pframes_t) = 0;
bool pending_overwrite () const {
return _pending_overwrite;
PBD::Signal0<void> RecordEnableChanged;
PBD::Signal0<void> SpeedChanged;
PBD::Signal0<void> ReverseChanged;
+ /* Emitted when this diskstream is set to use a different playlist */
PBD::Signal0<void> PlaylistChanged;
PBD::Signal0<void> AlignmentStyleChanged;
PBD::Signal1<void,Location *> LoopSet;
virtual int overwrite_existing_buffers () = 0;
virtual int internal_playback_seek (framecnt_t distance) = 0;
virtual int can_internal_playback_seek (framecnt_t distance) = 0;
- virtual int rename_write_sources () = 0;
virtual void reset_write_sources (bool, bool force = false) = 0;
virtual void non_realtime_input_change () = 0;
- uint32_t read_data_count() const { return _read_data_count; }
- uint32_t write_data_count() const { return _write_data_count; }
-
protected:
friend class Auditioner;
virtual int seek (framepos_t which_sample, bool complete_refill = false) = 0;
protected:
friend class Track;
- virtual int process (framepos_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input, bool& need_butler) = 0;
- virtual bool commit (nframes_t nframes) = 0;
+ virtual int process (BufferSet&, framepos_t transport_frame, pframes_t nframes, framecnt_t &, bool need_disk_signal) = 0;
+ virtual frameoffset_t calculate_playback_distance (pframes_t nframes) = 0;
+ virtual bool commit (framecnt_t) = 0;
//private:
virtual void transport_looped (framepos_t transport_frame) = 0;
struct CaptureInfo {
- framepos_t start;
- framecnt_t frames;
+ framepos_t start;
+ framecnt_t frames;
};
virtual int use_new_write_source (uint32_t n=0) = 0;
virtual void set_align_style_from_io() {}
virtual void setup_destructive_playlist () {}
virtual void use_destructive_playlist () {}
- virtual void prepare_to_stop (framepos_t pos);
+ virtual void prepare_to_stop (framepos_t transport_pos, framepos_t audible_frame);
- void calculate_record_range(OverlapType ot, framepos_t transport_frame, framecnt_t nframes,
- nframes_t& rec_nframes, nframes_t& rec_offset);
+ void engage_record_enable ();
+ void disengage_record_enable ();
- static nframes_t disk_io_chunk_frames;
+ virtual bool prep_record_enable () = 0;
+ virtual bool prep_record_disable () = 0;
+
+ void calculate_record_range (
+ Evoral::OverlapType ot, framepos_t transport_frame, framecnt_t nframes,
+ framecnt_t& rec_nframes, framecnt_t& rec_offset
+ );
+
+ static framecnt_t disk_io_chunk_frames;
std::vector<CaptureInfo*> capture_info;
- mutable Glib::Mutex capture_info_lock;
+ mutable Glib::Threads::Mutex capture_info_lock;
uint32_t i_am_the_modifier;
bool _buffer_reallocation_required;
bool _seek_required;
- bool force_refill;
/** Start of currently running capture in session frames */
framepos_t capture_start_frame;
framecnt_t capture_captured;
bool was_recording;
- nframes_t adjust_capture_position;
- nframes_t _capture_offset;
- nframes_t _roll_delay;
+ framecnt_t adjust_capture_position;
+ framecnt_t _capture_offset;
+ /** The number of frames by which this diskstream's output should be delayed
+ with respect to the transport frame. This is used for latency compensation.
+ */
+ framecnt_t _roll_delay;
framepos_t first_recordable_frame;
framepos_t last_recordable_frame;
int last_possibly_recording;
AlignStyle _alignment_style;
- bool _scrubbing;
+ AlignChoice _alignment_choice;
bool _slaved;
Location* loop_location;
framepos_t overwrite_frame;
bool _pending_overwrite;
bool overwrite_queued;
IOChange input_change_pending;
- nframes_t wrap_buffer_size;
- nframes_t speed_buffer_size;
+ framecnt_t wrap_buffer_size;
+ framecnt_t speed_buffer_size;
double _speed;
double _target_speed;
+ /** The next frame position that we should be reading from in our playlist */
framepos_t file_frame;
framepos_t playback_sample;
- framecnt_t playback_distance;
-
- uint32_t _read_data_count;
- uint32_t _write_data_count;
bool in_set_state;
- AlignStyle _persistent_alignment_style;
- bool first_input_change;
- Glib::Mutex state_lock;
+ std::string _write_source_name;
+
+ Glib::Threads::Mutex state_lock;
PBD::ScopedConnectionList playlist_connections;
PBD::ScopedConnection ic_connection;
Flag _flags;
+ XMLNode* deprecated_io_node;
void route_going_away ();
};
projects / ardour.git / blobdiff