X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fdiskstream.h;h=427b52b0545274f72b8c8e5a2947cbdc1328d9e7;hb=91e0e0f9f83496fd5ec8f40844ba02df61de37f4;hp=97a512cf3f8b8bf38b13399c80efe85308332bf2;hpb=061a85191c301ac18f2e8ca59d43127a4499ba96;p=ardour.git diff --git a/libs/ardour/ardour/diskstream.h b/libs/ardour/ardour/diskstream.h index 97a512cf3f..427b52b054 100644 --- a/libs/ardour/ardour/diskstream.h +++ b/libs/ardour/ardour/diskstream.h @@ -33,7 +33,6 @@ #include "ardour/ardour.h" #include "ardour/chan_count.h" -#include "ardour/location.h" #include "ardour/session_object.h" #include "ardour/types.h" #include "ardour/utils.h" @@ -46,10 +45,15 @@ namespace ARDOUR { class IO; class Playlist; class Processor; -class Region; +class Source; class Session; -class Track; +class Track; +class Location; +class BufferSet; +/** 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 Diskstream : public SessionObject, public PublicDiskstream { public: @@ -64,27 +68,31 @@ class Diskstream : public SessionObject, public PublicDiskstream Diskstream (Session &, const XMLNode&); virtual ~Diskstream(); - bool set_name (const std::string& str); + virtual bool set_name (const std::string& str); boost::shared_ptr 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; } @@ -101,7 +109,7 @@ class Diskstream : public SessionObject, public PublicDiskstream virtual void punch_out() {} void non_realtime_set_speed (); - virtual void non_realtime_locate (nframes_t /*location*/) {}; + virtual void non_realtime_locate (framepos_t /*location*/) {}; virtual void playlist_modified (); boost::shared_ptr playlist () { return _playlist; } @@ -110,23 +118,25 @@ class Diskstream : public SessionObject, public PublicDiskstream virtual int use_new_playlist () = 0; virtual int use_copy_playlist () = 0; - nframes_t current_capture_start() const { return capture_start_frame; } - nframes_t current_capture_end() const { return capture_start_frame + capture_captured; } - nframes_t get_capture_start_frame (uint32_t n=0); - nframes_t get_captured_frames (uint32_t n=0); + /** @return Start position of currently-running capture (in session frames) */ + framepos_t current_capture_start() const { return capture_start_frame; } + framepos_t current_capture_end() const { return capture_start_frame + capture_captured; } + framepos_t get_capture_start_frame (uint32_t n = 0) const; + framecnt_t get_captured_frames (uint32_t n = 0) const; 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_jack_monitors_input (bool) {} + virtual void ensure_jack_monitors_input (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; } @@ -134,18 +144,16 @@ class Diskstream : public SessionObject, public PublicDiskstream int set_loop (Location *loc); - std::list >& last_capture_regions () { return _last_capture_regions; } + std::list >& last_capture_sources () { return _last_capture_sources; } void handle_input_change (IOChange, void *src); - void remove_region_from_last_capture (boost::weak_ptr wregion); - void move_processor_automation (boost::weak_ptr, std::list > const &); /** 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; @@ -154,6 +162,7 @@ class Diskstream : public SessionObject, public PublicDiskstream PBD::Signal0 RecordEnableChanged; PBD::Signal0 SpeedChanged; PBD::Signal0 ReverseChanged; + /* Emitted when this diskstream is set to use a different playlist */ PBD::Signal0 PlaylistChanged; PBD::Signal0 AlignmentStyleChanged; PBD::Signal1 LoopSet; @@ -171,24 +180,21 @@ class Diskstream : public SessionObject, public PublicDiskstream virtual void set_pending_overwrite (bool) = 0; virtual int overwrite_existing_buffers () = 0; - virtual int internal_playback_seek (nframes_t distance) = 0; - virtual int can_internal_playback_seek (nframes_t distance) = 0; - virtual int rename_write_sources () = 0; + virtual int internal_playback_seek (framecnt_t distance) = 0; + virtual int can_internal_playback_seek (framecnt_t distance) = 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 (nframes_t which_sample, bool complete_refill = false) = 0; + virtual int seek (framepos_t which_sample, bool complete_refill = false) = 0; protected: friend class Track; - virtual int process (nframes_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: @@ -199,7 +205,7 @@ class Diskstream : public SessionObject, public PublicDiskstream struct CaptureTransition { TransitionType type; - nframes_t capture_val; ///< The start or end file frame position + framepos_t capture_val; ///< The start or end file frame position }; /* The two central butler operations */ @@ -210,14 +216,14 @@ class Diskstream : public SessionObject, public PublicDiskstream virtual void playlist_changed (const PBD::PropertyChange&); virtual void playlist_deleted (boost::weak_ptr); - virtual void playlist_ranges_moved (std::list< Evoral::RangeMove > const &); + virtual void playlist_ranges_moved (std::list< Evoral::RangeMove > const &, bool); virtual void transport_stopped_wallclock (struct tm&, time_t, bool abort) = 0; - virtual void transport_looped (nframes_t transport_frame) = 0; + virtual void transport_looped (framepos_t transport_frame) = 0; struct CaptureInfo { - uint32_t start; - uint32_t frames; + framepos_t start; + framecnt_t frames; }; virtual int use_new_write_source (uint32_t n=0) = 0; @@ -228,23 +234,31 @@ class Diskstream : public SessionObject, public PublicDiskstream virtual bool realtime_set_speed (double, bool global_change); - std::list > _last_capture_regions; + std::list > _last_capture_sources; virtual int use_pending_capture_data (XMLNode& node) = 0; - virtual void check_record_status (nframes_t transport_frame, nframes_t nframes, bool can_record); - virtual void prepare_record_status (nframes_t /*capture_start_frame*/) {} + virtual void check_record_status (framepos_t transport_frame, bool can_record); + virtual void prepare_record_status (framepos_t /*capture_start_frame*/) {} 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 pos); + + void engage_record_enable (); + void disengage_record_enable (); - void calculate_record_range(OverlapType ot, sframes_t transport_frame, nframes_t nframes, - nframes_t& rec_nframes, nframes_t& rec_offset); + virtual bool prep_record_enable () = 0; + virtual bool prep_record_disable () = 0; - static nframes_t disk_io_chunk_frames; - std::vector capture_info; - Glib::Mutex capture_info_lock; + 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 capture_info; + mutable Glib::Threads::Mutex capture_info_lock; uint32_t i_am_the_modifier; @@ -261,53 +275,48 @@ class Diskstream : public SessionObject, public PublicDiskstream bool _buffer_reallocation_required; bool _seek_required; - bool force_refill; - nframes_t capture_start_frame; - nframes_t capture_captured; + /** 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; - nframes_t first_recordable_frame; - nframes_t last_recordable_frame; + 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; - nframes_t overwrite_frame; + framepos_t overwrite_frame; off_t overwrite_offset; 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; - nframes_t file_frame; - nframes_t playback_sample; - nframes_t playback_distance; - - uint32_t _read_data_count; - uint32_t _write_data_count; + /** The next frame position that we should be reading from in our playlist */ + framepos_t file_frame; + framepos_t playback_sample; bool in_set_state; - AlignStyle _persistent_alignment_style; - bool first_input_change; - - Glib::Mutex state_lock; - nframes_t scrub_start; - nframes_t scrub_buffer_size; - nframes_t scrub_offset; + Glib::Threads::Mutex state_lock; PBD::ScopedConnectionList playlist_connections; PBD::ScopedConnection ic_connection; Flag _flags; + XMLNode* deprecated_io_node; void route_going_away (); };