implement stub UnknownProcessor

1 files changed, 44 insertions, 0 deletions

diff --git a/libs/ardour/unknown_processor.cc b/libs/ardour/unknown_processor.cc
index f6c713404f..4bf4ebeaef 100644
--- a/libs/ardour/unknown_processor.cc
+++ b/libs/ardour/unknown_processor.cc
@@ -17,6 +17,7 @@
 
 */
 
+#include "ardour/audio_buffer.h"
 #include "ardour/unknown_processor.h"
 
 #include "i18n.h"
@@ -27,11 +28,34 @@ using namespace ARDOUR;
 UnknownProcessor::UnknownProcessor (Session& s, XMLNode const & state)
 	: Processor (s, "")
 	, _state (state)
+	, have_ioconfig (false)
+	, saved_input (0)
+	, saved_output (0)
 {
 	XMLProperty const * prop = state.property (X_("name"));
 	if (prop) {
 		set_name (prop->value ());
+		_display_to_user = true;
 	}
+
+	int have_io = 0;
+	XMLNodeList kids = state.children ();
+	for (XMLNodeIterator i = kids.begin(); i != kids.end(); ++i) {
+		if ((*i)->name() == X_("ConfiguredInput")) {
+			have_io |= 1;
+			saved_input = new ChanCount(**i);
+		}
+		if ((*i)->name() == X_("ConfiguredOutput")) {
+			have_io |= 2;
+			saved_output = new ChanCount(**i);
+		}
+	}
+	have_ioconfig = (have_io == 3);
+}
+
+UnknownProcessor::~UnknownProcessor () {
+	delete saved_input;;
+	delete saved_output;
 }
 
 XMLNode &
@@ -40,3 +64,23 @@ UnknownProcessor::state (bool)
 	return *(new XMLNode (_state));
 }
 
+bool
+UnknownProcessor::can_support_io_configuration (const ChanCount &in, ChanCount & out) {
+	if (have_ioconfig && in == *saved_input) {
+		out = *saved_output;
+		return true;
+	}
+	return false;
+}
+
+void
+UnknownProcessor::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t nframes, bool)
+{
+	if (!have_ioconfig) {
+		return;
+	}
+	// silence excess output buffers
+	for (uint32_t i = saved_input->n_audio(); i < saved_output->n_audio(); ++i) {
+		bufs.get_audio (i).silence (nframes);
+	}
+}