fix AU port count - NI Reaktor5

diff --git a/libs/ardour/ardour/audio_unit.h b/libs/ardour/ardour/audio_unit.h
index 8fcdcf75a46b6bd77773c97bbc42b550d3e9184f..f3cdcb94f4873b84e1f143ab2f69c2eadfcf7616 100644 (file)
--- a/libs/ardour/ardour/audio_unit.h
+++ b/libs/ardour/ardour/audio_unit.h
@@ -203,6 +203,7 @@ class LIBARDOUR_API AUPlugin : public ARDOUR::Plugin
        framecnt_t cb_offset;
        BufferSet* input_buffers;
        framecnt_t frames_processed;
+       bool _match_ioports;
 
        std::vector<AUParameterDescriptor> descriptors;
        AUEventListenerRef _parameter_listener;

diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 8274ba9db085317704dd91c32ab9ac58785c4b3b..bcf4778b7dfe38ad1a87343a968ec71b51322d30 100644 (file)
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -423,6 +423,7 @@ AUPlugin::AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptr<CAC
        , input_offset (0)
        , input_buffers (0)
        , frames_processed (0)
+       , _match_ioports (false)
        , _parameter_listener (0)
        , _parameter_listener_arg (0)
        , last_transport_rolling (false)
@@ -1012,8 +1013,11 @@ AUPlugin::configure_io (ChanCount in, ChanCount out)
 {
        AudioStreamBasicDescription streamFormat;
        bool was_initialized = initialized;
-       int32_t audio_in = in.n_audio();
        int32_t audio_out = out.n_audio();
+       if (_match_ioports) {
+               in.set (DataType::AUDIO, audio_out);
+       }
+       int32_t audio_in = in.n_audio();
 
        DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("configure %1 for %2 in %3 out\n", name(), in, out));
 
@@ -1310,13 +1314,17 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out)
                }
 
                if (found) {
+                       if (possible_in < -2 && possible_in == possible_out) {
+                               // input-port count needs to match output-port
+                               _match_ioports = true;
+                       }
                        break;
                }
 
        }
 
        if (found) {
-               out.set (DataType::MIDI, 0);
+               out.set (DataType::MIDI, 0); /// XXX
                out.set (DataType::AUDIO, audio_out);
                DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
        } else {
@@ -2222,6 +2230,7 @@ AUPlugin::has_editor () const
 
 AUPluginInfo::AUPluginInfo (boost::shared_ptr<CAComponentDescription> d)
        : descriptor (d)
+       , version (0)
 {
        type = ARDOUR::AudioUnit;
 }