audio interpolation is really private
[ardour.git] / libs / ardour / ardour / audio_diskstream.h
index 4106602b63e5e372c7d29e03ec7717e41a4deeae..f93c949a38e714bf93ca0baed4507742354a8200 100644 (file)
@@ -53,7 +53,7 @@ class AudioPlaylist;
 class AudioFileSource;
 class IO;
 
-class AudioDiskstream : public Diskstream
+class LIBARDOUR_API AudioDiskstream : public Diskstream
 {
   public:
        AudioDiskstream (Session &, const std::string& name, Diskstream::Flag f = Recordable);
@@ -66,34 +66,17 @@ class AudioDiskstream : public Diskstream
        std::string input_source (uint32_t n=0) const {
                boost::shared_ptr<ChannelList> c = channels.reader();
                if (n < c->size()) {
-                       return (*c)[n]->source ? (*c)[n]->source->name() : "";
+                       return (*c)[n]->source.name;
                } else {
                        return "";
                }
        }
 
-       Port *input_source_port (uint32_t n=0) const {
-               boost::shared_ptr<ChannelList> c = channels.reader();
-               if (n < c->size()) return (*c)[n]->source; return 0;
-       }
-
        void set_record_enabled (bool yn);
        int set_destructive (bool yn);
        int set_non_layered (bool yn);
        bool can_become_destructive (bool& requires_bounce) const;
 
-       float peak_power(uint32_t n = 0) {
-               boost::shared_ptr<ChannelList> c = channels.reader();
-               ChannelInfo* chaninfo = (*c)[n];
-               float x = chaninfo->peak_power;
-               chaninfo->peak_power = 0.0f;
-               if (x > 0.0f) {
-                       return 20.0f * fast_log10(x);
-               } else {
-                       return minus_infinity();
-               }
-       }
-
        boost::shared_ptr<AudioPlaylist> audio_playlist () { return boost::dynamic_pointer_cast<AudioPlaylist>(_playlist); }
 
        int use_playlist (boost::shared_ptr<Playlist>);
@@ -124,12 +107,15 @@ class AudioDiskstream : public Diskstream
        int add_channel (uint32_t how_many);
        int remove_channel (uint32_t how_many);
 
+       bool set_name (std::string const &);
+       bool set_write_source_name (const std::string& str);
+
        /* stateful */
 
        XMLNode& get_state(void);
        int      set_state(const XMLNode& node, int version);
 
-       void monitor_input (bool);
+       void request_input_monitoring (bool);
 
        static void swap_by_ptr (Sample *first, Sample *last) {
                while (first < last) {
@@ -139,17 +125,6 @@ class AudioDiskstream : public Diskstream
                }
        }
 
-       static void swap_by_ptr (Sample *first, Sample *last, nframes_t n) {
-               while (n--) {
-                       Sample tmp = *first;
-                       *first++ = *last;
-                       *last-- = tmp;
-               }
-       }
-
-       CubicInterpolation interpolation;
-
-       XMLNode* deprecated_io_node;
 
   protected:
        friend class Session;
@@ -161,70 +136,75 @@ class AudioDiskstream : public Diskstream
 
        void set_pending_overwrite(bool);
        int  overwrite_existing_buffers ();
-       void set_block_size (nframes_t);
+       void set_block_size (pframes_t);
        int  internal_playback_seek (framecnt_t distance);
        int  can_internal_playback_seek (framecnt_t distance);
-       int  rename_write_sources ();
-        std::list<boost::shared_ptr<Source> > steal_write_sources();
        void reset_write_sources (bool, bool force = false);
        void non_realtime_input_change ();
        void non_realtime_locate (framepos_t location);
 
   protected:
        friend class Auditioner;
-       int  seek (framepos_t which_sample, bool complete_refill = false);
-
-  protected:
        friend class AudioTrack;
+       int  seek (framepos_t which_sample, bool complete_refill = false);
 
-       int  process (framepos_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input, bool& need_butler);
-       bool commit  (nframes_t nframes);
+        int  process (BufferSet&, framepos_t transport_frame, pframes_t nframes, framecnt_t &, bool need_disk_signal);
+        frameoffset_t calculate_playback_distance (pframes_t nframes);
+       bool commit  (framecnt_t);
 
   private:
+       struct ChannelSource {
+               std::string name;
 
+               bool is_physical () const;
+               void request_input_monitoring (bool) const;
+       };
+
+       /** Information about one of our channels */
        struct ChannelInfo : public boost::noncopyable {
 
-               ChannelInfo (nframes_t playback_buffer_size, 
-                             nframes_t capture_buffer_size,
-                             nframes_t speed_buffer_size, 
-                             nframes_t wrap_buffer_size);
+               ChannelInfo (framecnt_t playback_buffer_size,
+                            framecnt_t capture_buffer_size,
+                            framecnt_t speed_buffer_size,
+                            framecnt_t wrap_buffer_size);
                ~ChannelInfo ();
 
                Sample     *playback_wrap_buffer;
                Sample     *capture_wrap_buffer;
                Sample     *speed_buffer;
 
-               float       peak_power;
-
-               boost::shared_ptr<AudioFileSource> fades_source;
                boost::shared_ptr<AudioFileSource> write_source;
 
-               /// the Port that our audio data comes from
-               Port         *source;
+               /** Information about the Port that our audio data comes from */
+               ChannelSource source;
+
                Sample       *current_capture_buffer;
                Sample       *current_playback_buffer;
 
-               RingBufferNPT<Sample> *playback_buf;
-               RingBufferNPT<Sample> *capture_buf;
+               /** A ringbuffer for data to be played back, written to in the
+                   butler thread, read from in the process thread.
+               */
+               PBD::RingBufferNPT<Sample> *playback_buf;
+               PBD::RingBufferNPT<Sample> *capture_buf;
 
                Sample* scrub_buffer;
                Sample* scrub_forward_buffer;
                Sample* scrub_reverse_buffer;
 
-               RingBufferNPT<Sample>::rw_vector playback_vector;
-               RingBufferNPT<Sample>::rw_vector capture_vector;
+               PBD::RingBufferNPT<Sample>::rw_vector playback_vector;
+               PBD::RingBufferNPT<Sample>::rw_vector capture_vector;
 
-               RingBufferNPT<CaptureTransition> * capture_transition_buf;
+               PBD::RingBufferNPT<CaptureTransition> * capture_transition_buf;
                // the following are used in the butler thread only
-               nframes_t                     curr_capture_cnt;
+               framecnt_t                     curr_capture_cnt;
 
-                void resize_playback (nframes_t);
-                void resize_capture (nframes_t);
+               void resize_playback (framecnt_t);
+               void resize_capture (framecnt_t);
        };
 
        typedef std::vector<ChannelInfo*> ChannelList;
 
-       void process_varispeed_playback(nframes_t nframes, boost::shared_ptr<ChannelList> c);
+       CubicInterpolation interpolation;
 
        /* The two central butler operations */
        int do_flush (RunContext context, bool force = false);
@@ -233,10 +213,10 @@ class AudioDiskstream : public Diskstream
        int do_refill_with_alloc ();
 
        int read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer,
-                  framepos_t& start, nframes_t cnt,
-                  ChannelInfo* channel_info, int channel, bool reversed);
+                 framepos_t& start, framecnt_t cnt,
+                 int channel, bool reversed);
 
-       void finish_capture (bool rec_monitors_input, boost::shared_ptr<ChannelList>);
+       void finish_capture (boost::shared_ptr<ChannelList>);
        void transport_stopped_wallclock (struct tm&, time_t, bool abort);
        void transport_looped (framepos_t transport_frame);
 
@@ -259,12 +239,12 @@ class AudioDiskstream : public Diskstream
        void setup_destructive_playlist ();
        void use_destructive_playlist ();
 
-        void adjust_playback_buffering ();
-        void adjust_capture_buffering ();
-
-       void engage_record_enable ();
-       void disengage_record_enable ();
+       void adjust_playback_buffering ();
+       void adjust_capture_buffering ();
 
+        bool prep_record_enable ();
+       bool prep_record_disable ();
+    
        // Working buffers for do_refill (butler thread)
        static void allocate_working_buffers();
        static void free_working_buffers();