Fixed buffer index overrun in connect_and_run()

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

diff --git a/libs/ardour/ladspa_plugin.cc b/libs/ardour/ladspa_plugin.cc
index 1262b7e250b2c21c47a63887c853216896656cf6..50757f9acd2e3c87561595cd388f7e037cc17cfe 100644 (file)
--- a/libs/ardour/ladspa_plugin.cc
+++ b/libs/ardour/ladspa_plugin.cc
@@ -609,14 +609,14 @@ LadspaPlugin::connect_and_run (vector<Sample*>& bufs, uint32_t nbufs, int32_t& i
        while (port_index < parameter_count()) {
                if (LADSPA_IS_PORT_AUDIO (port_descriptor(port_index))) {
                        if (LADSPA_IS_PORT_INPUT (port_descriptor(port_index))) {
-                               connect_port (port_index, bufs[min((uint32_t) in_index,nbufs)] + offset);
+                               connect_port (port_index, bufs[min((uint32_t) in_index,nbufs - 1)] + offset);
                                //cerr << this << ' ' << name() << " @ " << offset << " inport " << in_index << " = buf " 
                                //     << min((uint32_t)in_index,nbufs) << " = " << &bufs[min((uint32_t)in_index,nbufs)][offset] << endl;
                                in_index++;
 
 
                        } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
-                               connect_port (port_index, bufs[min((uint32_t) out_index,nbufs)] + offset);
+                               connect_port (port_index, bufs[min((uint32_t) out_index,nbufs - 1)] + offset);
                                // cerr << this << ' ' << name() << " @ " << offset << " outport " << out_index << " = buf " 
                                //     << min((uint32_t)out_index,nbufs) << " = " << &bufs[min((uint32_t)out_index,nbufs)][offset] << endl;
                                out_index++;