X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Faudiosource.h;h=59d5add12237bfa39892cbfe3b20749d83ca7e09;hb=57ee61772b6c44e7731619c5c74e45bb860ac4aa;hp=96779864493a22cc0f1e51881c88367196a08242;hpb=f4ac9430f3fc2c405334f3f02fe08a5782454396;p=ardour.git diff --git a/libs/ardour/ardour/audiosource.h b/libs/ardour/ardour/audiosource.h index 9677986449..59d5add122 100644 --- a/libs/ardour/ardour/audiosource.h +++ b/libs/ardour/ardour/audiosource.h @@ -21,35 +21,38 @@ #define __ardour_audio_source_h__ #include +#include #include #include -#include -#include +#include #include +#include #include "ardour/source.h" #include "ardour/ardour.h" +#include "ardour/readable.h" #include "pbd/stateful.h" #include "pbd/xml++.h" namespace ARDOUR { -class AudioSource : virtual public Source, +class LIBARDOUR_API AudioSource : virtual public Source, public ARDOUR::Readable, public boost::enable_shared_from_this { public: - AudioSource (Session&, Glib::ustring name); + AudioSource (Session&, const std::string& name); AudioSource (Session&, const XMLNode&); virtual ~AudioSource (); framecnt_t readable_length() const { return _length; } - uint32_t n_channels() const { return 1; } + virtual uint32_t n_channels() const { return 1; } + virtual bool empty() const; framecnt_t length (framepos_t pos) const; - void update_length (framepos_t pos, framecnt_t cnt); + void update_length (framecnt_t cnt); virtual framecnt_t available_peaks (double zoom) const; @@ -58,21 +61,18 @@ class AudioSource : virtual public Source, virtual float sample_rate () const = 0; - virtual void mark_streaming_write_completed () {} + virtual void mark_streaming_write_completed (const Lock& lock); virtual bool can_truncate_peaks() const { return true; } - void set_captured_for (Glib::ustring str) { _captured_for = str; } - Glib::ustring 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; } + void set_captured_for (std::string str) { _captured_for = str; } + std::string captured_for() const { return _captured_for; } int read_peaks (PeakData *peaks, framecnt_t npeaks, framepos_t start, framecnt_t cnt, double samples_per_visual_peak) const; int build_peaks (); - bool peaks_ready (boost::function callWhenReady, PBD::ScopedConnection& connection_created_if_not_ready, PBD::EventLoop* event_loop) const; + bool peaks_ready (boost::function callWhenReady, PBD::ScopedConnection** connection_created_if_not_ready, PBD::EventLoop* event_loop) const; mutable PBD::Signal0 PeaksReady; mutable PBD::Signal2 PeakRangeReady; @@ -80,7 +80,7 @@ class AudioSource : virtual public Source, XMLNode& get_state (); int set_state (const XMLNode&, int version); - int rename_peakfile (Glib::ustring newpath); + int rename_peakfile (std::string newpath); void touch_peakfile (); static void set_build_missing_peakfiles (bool yn) { @@ -96,6 +96,7 @@ class AudioSource : virtual public Source, } virtual int setup_peakfile () { return 0; } + int close_peakfile (); int prepare_for_peakfile_writes (); void done_with_peakfile_writes (bool done = true); @@ -103,22 +104,32 @@ class AudioSource : virtual public Source, /** @return true if the each source sample s must be clamped to -1 < s < 1 */ virtual bool clamped_at_unity () const = 0; + static void allocate_working_buffers (framecnt_t framerate); + protected: static bool _build_missing_peakfiles; static bool _build_peakfiles; - framecnt_t _length; - bool _peaks_built; - mutable Glib::Mutex _peaks_ready_lock; - Glib::ustring peakpath; - Glib::ustring _captured_for; + /* these collections of working buffers for supporting + playlist's reading from potentially nested/recursive + sources assume SINGLE THREADED reads by the butler + thread, or a lock around calls that use them. + */ + + static std::vector > _mixdown_buffers; + static std::vector > _gain_buffers; + static Glib::Threads::Mutex _level_buffer_lock; - mutable uint32_t _read_data_count; // modified in read() - mutable uint32_t _write_data_count; // modified in write() + static void ensure_buffers_for_level (uint32_t, framecnt_t); + static void ensure_buffers_for_level_locked (uint32_t, framecnt_t); - int initialize_peakfile (bool newfile, Glib::ustring path); + framecnt_t _length; + std::string _peakpath; + std::string _captured_for; + + int initialize_peakfile (const std::string& path, const bool in_session = false); int build_peaks_from_scratch (); - int compute_and_write_peaks (Sample* buf, framepos_t first_frame, framecnt_t cnt, + int compute_and_write_peaks (Sample* buf, framecnt_t first_frame, framecnt_t cnt, bool force, bool intermediate_peaks_ready_signal); void truncate_peakfile(); @@ -126,24 +137,38 @@ class AudioSource : virtual public Source, virtual framecnt_t read_unlocked (Sample *dst, framepos_t start, framecnt_t cnt) const = 0; virtual framecnt_t write_unlocked (Sample *dst, framecnt_t cnt) = 0; - virtual Glib::ustring peak_path(Glib::ustring audio_path) = 0; - virtual Glib::ustring find_broken_peakfile (Glib::ustring missing_peak_path, - Glib::ustring audio_path) = 0; + virtual std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const = 0; virtual int read_peaks_with_fpp (PeakData *peaks, framecnt_t npeaks, framepos_t start, framecnt_t cnt, double samples_per_visual_peak, framecnt_t fpp) const; - - int compute_and_write_peaks (Sample* buf, framepos_t first_frame, framecnt_t cnt, - bool force, bool intermediate_peaks_ready_signal, + + int compute_and_write_peaks (Sample* buf, framecnt_t first_frame, framecnt_t cnt, + bool force, bool intermediate_peaks_ready_signal, framecnt_t frames_per_peak); private: - int peakfile; + bool _peaks_built; + /** This mutex is used to protect both the _peaks_built + * variable and also the emission (and handling) of the + * PeaksReady signal. Holding the lock when emitting + * PeaksReady means that _peaks_built cannot be changed + * during the handling of the signal. + */ + mutable Glib::Threads::Mutex _peaks_ready_lock; + Glib::Threads::Mutex _initialize_peaks_lock; + + int _peakfile_fd; framecnt_t peak_leftover_cnt; framecnt_t peak_leftover_size; Sample* peak_leftovers; framepos_t peak_leftover_frame; + + mutable bool _first_run; + mutable double _last_scale; + mutable off_t _last_map_off; + mutable size_t _last_raw_map_length; + mutable boost::scoped_array peak_cache; }; }