AudioProcessor: Add isRealtime()

modules/juce_audio_processors/processors/juce_AudioProcessor.h

@@ -71,6 +71,12 @@ public:
         doublePrecision
     };
 
+    enum class Realtime
+    {
+        no,
+        yes
+    };
+
     using ChangeDetails = AudioProcessorListener::ChangeDetails;
 
     //==============================================================================
@@ -916,6 +922,21 @@ public:
     */
     bool isNonRealtime() const noexcept                                 { return nonRealtime; }
 
+    /** Returns no if the processor is being run in an offline mode for rendering.
+
+        If the processor is being run live on realtime signals, this returns yes.
+        If the mode is unknown, this will assume it's realtime and return yes.
+
+        This value may be unreliable until the prepareToPlay() method has been called,
+        and could change each time prepareToPlay() is called.
+
+        @see setNonRealtime()
+    */
+    Realtime isRealtime() const noexcept
+    {
+        return isNonRealtime() ? Realtime::no : Realtime::yes;
+    }
+
     /** Called by the host to tell this processor whether it's being used in a non-realtime
         capacity for offline rendering or bouncing.
     */