Clean up Latency API (Processor vs Plugin)

Plugins are only a source of Latency (Plugin delay).
The API to query, signal and override Latency is managed
by PluginInsert.

1 files changed, 7 insertions, 1 deletions

diff --git a/libs/ardour/ardour/plugin.h b/libs/ardour/ardour/plugin.h
index 4f619e65ba..b8d1cd76c0 100644
--- a/libs/ardour/ardour/plugin.h
+++ b/libs/ardour/ardour/plugin.h
@@ -67,7 +67,7 @@ typedef std::set<uint32_t> PluginOutputConfiguration;
  *
  * Plugins are not used directly in Ardour but always wrapped by a PluginInsert.
  */
-class LIBARDOUR_API Plugin : public PBD::StatefulDestructible, public Latent
+class LIBARDOUR_API Plugin : public PBD::StatefulDestructible, public HasLatency
 {
   public:
 	Plugin (ARDOUR::AudioEngine&, ARDOUR::Session&);
@@ -337,6 +337,10 @@ class LIBARDOUR_API Plugin : public PBD::StatefulDestructible, public Latent
 	PBD::Signal1<void,uint32_t> StartTouch;
 	PBD::Signal1<void,uint32_t> EndTouch;
 
+	samplecnt_t signal_latency () const {
+		return plugin_latency ();
+	}
+
 protected:
 
 	friend class PluginInsert;
@@ -370,6 +374,8 @@ protected:
 
 private:
 
+	virtual samplecnt_t plugin_latency () const = 0;
+
 	/** Fill _presets with our presets */
 	virtual void find_presets () = 0;