align internal sends using delaylines

diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index f3e7d90bbe2ad6a42d1bb9c11c7a92246d201d79..0df06edcfc918d96fca7be10d9ed75fa5908b3da 100644 (file)
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -512,6 +512,8 @@ Route::process_output_buffers (BufferSet& bufs,
        /* set this to be true if the meter will already have been ::run() earlier */
        bool const meter_already_run = metering_state() == MeteringInput;
 
+       framecnt_t latency = 0;
+
        for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 
                if (meter_already_run && boost::dynamic_pointer_cast<PeakMeter> (*i)) {
@@ -537,8 +539,16 @@ Route::process_output_buffers (BufferSet& bufs,
                   do we catch route != active somewhere higher?
                */
 
+               if (boost::dynamic_pointer_cast<Send>(*i) != 0) {
+                       boost::dynamic_pointer_cast<Send>(*i)->set_delay_in(_signal_latency - latency);
+               }
+
                (*i)->run (bufs, start_frame, end_frame, nframes, *i != _processors.back());
                bufs.set_count ((*i)->output_streams());
+
+               if ((*i)->active ()) {
+                       latency += (*i)->signal_latency ();
+               }
        }
 }