-
- virtual nframes_t signal_latency() const { return 0; }
-
- virtual void transport_stopped (nframes_t frame) {}
-
- virtual void set_block_size (nframes_t nframes) {}
-
- virtual void run (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes, nframes_t offset) = 0;
- virtual void silence (nframes_t nframes, nframes_t offset) {}
-
- virtual void activate () { _active = true; ActiveChanged.emit(); }
- virtual void deactivate () { _active = false; ActiveChanged.emit(); }
-
- virtual bool configure_io (ChanCount in, ChanCount out) { _configured_input = in; return (_configured = true); }
-
- /* Derived classes should override these, or processor appears as a pass-through */
- virtual bool can_support_input_configuration (ChanCount in) const { return true; }
- virtual ChanCount output_for_input_configuration (ChanCount in) const { return in; }
- virtual ChanCount output_streams() const { return _configured_input; }
+
+ virtual framecnt_t signal_latency() const { return 0; }
+
+ virtual int set_block_size (pframes_t /*nframes*/) { return 0; }
+ virtual bool requires_fixed_sized_buffers() const { return false; }
+
+ /** @param result_required true if, on return from this method, @a bufs is required to contain valid data;
+ * if false, the method need not bother writing to @a bufs if it doesn't want to.
+ */
+ virtual void run (BufferSet& /*bufs*/, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t /*nframes*/, bool /*result_required*/) {}
+ virtual void silence (framecnt_t /*nframes*/) {}
+
+ virtual void activate () { _pending_active = true; ActiveChanged(); }
+ virtual void deactivate () { _pending_active = false; ActiveChanged(); }
+ virtual void flush() {}
+
+ virtual bool configure_io (ChanCount in, ChanCount out);
+
+ /* Derived classes should override these, or processor appears as an in-place pass-through */
+
+ virtual bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const = 0;