- Changed IO's vector<Port*>'s to PortList

- Added new Port classes, code to drive them
- Added PortList, which is a filthy mess ATM (nevermind that, it's the interface that's important at this stage)
- Added ChanCount, though it isn't very thoroughly used yet.  That's the next step....
- Fixed a few bugs relating to loading sessions saved with trunk
- Fixed a few random other bugs

Slowly working towards type agnosticism while keeping all the former code/logic intact is the name of the game here

Warning:  Removing ports is currently (intentionally) broken due solely to laziness.


git-svn-id: svn://localhost/ardour2/branches/midi@786 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 7 insertions, 2 deletions

diff --git a/libs/ardour/session_export.cc b/libs/ardour/session_export.cc
index b39c4f2218..c5449d3e06 100644
--- a/libs/ardour/session_export.cc
+++ b/libs/ardour/session_export.cc
@@ -46,6 +46,7 @@
 #include <ardour/export.h>
 #include <ardour/sndfile_helpers.h>
 #include <ardour/port.h>
+#include <ardour/audio_port.h>
 #include <ardour/audioengine.h>
 #include <ardour/audio_diskstream.h>
 #include <ardour/panner.h>
@@ -604,8 +605,12 @@ Session::process_export (jack_nframes_t nframes, AudioExportSpecification* spec)
 			/* OK, this port's output is supposed to appear on this channel 
 			 */
 
-			Port* port = (*t).first;
-			Sample* port_buffer = port->get_buffer (nframes);
+			AudioPort* const port = dynamic_cast<AudioPort*>((*t).first);
+			if (port == 0) {
+				cerr << "FIXME: Non-audio export" << endl;
+				continue;
+			}
+			Sample* port_buffer = port->get_audio_buffer().data(nframes);
 
 			/* now interleave the data from the channel into the float buffer */