cont'd work on Lua Vamp-plugin API

[ardour.git] / libs / ardour / internal_send.cc

diff --git a/libs/ardour/internal_send.cc b/libs/ardour/internal_send.cc
index 0f7d633ba048be4f9e00cc94a8b63ffa49694ee3..1746b00847e49a739f19293de18269fa3fb4ed62 100644 (file)
--- a/libs/ardour/internal_send.cc
+++ b/libs/ardour/internal_send.cc
@@ -30,7 +30,7 @@
 #include "ardour/session.h"
 #include "ardour/audioengine.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 namespace ARDOUR { class MuteMaster; class Pannable; }
 
@@ -144,7 +144,30 @@ InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame
        // in-place, which a send must never do.
 
        if (_panshell && !_panshell->bypassed() && role() != Listen) {
-               _panshell->run (bufs, mixbufs, start_frame, end_frame, nframes);
+               if (mixbufs.count ().n_audio () > 0) {
+                       _panshell->run (bufs, mixbufs, start_frame, end_frame, nframes);
+               }
+
+               /* non-audio data will not have been copied by the panner, do it now
+                * if there are more buffers available than send buffers, ignore them,
+                * if there are less, copy the last as IO::copy_to_output does. */
+
+               for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+                       if (*t != DataType::AUDIO) {
+                               BufferSet::iterator o = mixbufs.begin(*t);
+                               BufferSet::iterator i = bufs.begin(*t);
+
+                               while (i != bufs.end(*t) && o != mixbufs.end(*t)) {
+                                       o->read_from (*i, nframes);
+                                       ++i;
+                                       ++o;
+                               }
+                               while (o != mixbufs.end(*t)) {
+                                       o->silence(nframes, 0);
+                                       ++o;
+                               }
+                       }
+               }
        } else {
                if (role() == Listen) {
                        /* We're going to the monitor bus, so discard MIDI data */