Show an example filename in the main export dialog

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

diff --git a/libs/ardour/export_channel.cc b/libs/ardour/export_channel.cc
index 936b0f8a625f148230fe2c5ac7143186fd79e852..8f83c0a7fb9c32524d55fcb319363767e484c9f5 100644 (file)
--- a/libs/ardour/export_channel.cc
+++ b/libs/ardour/export_channel.cc
@@ -62,15 +62,17 @@ PortExportChannel::read (Sample const *& data, framecnt_t frames) const
        assert(frames <= buffer_size);
 
        if (ports.size() == 1) {
-               data = (*ports.begin())->get_audio_buffer(frames).data();
+               boost::shared_ptr<AudioPort> p = ports.begin()->lock ();
+               data = p->get_audio_buffer(frames).data();
                return;
        }
-       
+
        memset (buffer.get(), 0, frames * sizeof (Sample));
 
        for (PortSet::const_iterator it = ports.begin(); it != ports.end(); ++it) {
-               if (*it != 0) {
-                       Sample* port_buffer = (*it)->get_audio_buffer(frames).data();
+               boost::shared_ptr<AudioPort> p = it->lock ();
+               if (p) {
+                       Sample* port_buffer = p->get_audio_buffer(frames).data();
 
                        for (uint32_t i = 0; i < frames; ++i) {
                                buffer[i] += (float) port_buffer[i];
@@ -86,8 +88,9 @@ PortExportChannel::get_state (XMLNode * node) const
 {
        XMLNode * port_node;
        for (PortSet::const_iterator it = ports.begin(); it != ports.end(); ++it) {
-               if ((port_node = node->add_child ("Port"))) {
-                       port_node->add_property ("name", (*it)->name());
+               boost::shared_ptr<Port> p = it->lock ();
+               if (p && (port_node = node->add_child ("Port"))) {
+                       port_node->add_property ("name", p->name());
                }
        }
 }
@@ -100,7 +103,7 @@ PortExportChannel::set_state (XMLNode * node, Session & session)
        for (XMLNodeList::iterator it = xml_ports.begin(); it != xml_ports.end(); ++it) {
                if ((prop = (*it)->property ("name"))) {
                        std::string const & name = prop->value();
-                       AudioPort * port = dynamic_cast<AudioPort *> (session.engine().get_port_by_name (name));
+                       boost::shared_ptr<AudioPort> port = boost::dynamic_pointer_cast<AudioPort> (session.engine().get_port_by_name (name));
                        if (port) {
                                ports.insert (port);
                        } else {
@@ -241,13 +244,13 @@ RouteExportChannel::read (Sample const *& data, framecnt_t frames) const
 }
 
 void
-RouteExportChannel::get_state (XMLNode * node) const
+RouteExportChannel::get_state (XMLNode *) const
 {
        // TODO
 }
 
 void
-RouteExportChannel::set_state (XMLNode * node, Session & session)
+RouteExportChannel::set_state (XMLNode *, Session &)
 {
        // TODO
 }