Add ladspa producer

[mlt] / src / modules / jackrack / process.c

diff --git a/src/modules/jackrack/process.c b/src/modules/jackrack/process.c
index 88c00e8f55915a64150118848f0e5b117e4c0c88..6d29571a1c7d2ef166e2f2f3d9382b92b0a848d5 100644 (file)
--- a/src/modules/jackrack/process.c
+++ b/src/modules/jackrack/process.c
@@ -206,7 +206,8 @@ connect_chain (process_info_t * procinfo, jack_nframes_t frames)
     }
 
   /* input buffers for first plugin */
-  plugin_connect_input_ports (first_enabled, procinfo->jack_input_buffers);
+  if( plugin->desc->has_input )
+    plugin_connect_input_ports (first_enabled, procinfo->jack_input_buffers);
 }
 
 void
@@ -313,13 +314,15 @@ int process_ladspa (process_info_t * procinfo, jack_nframes_t frames,
   
   for (channel = 0; channel < procinfo->channels; channel++)
     {
-      procinfo->jack_input_buffers[channel] = inputs[channel];
-      if (!procinfo->jack_input_buffers[channel])
+      if(get_first_enabled_plugin (procinfo)->desc->has_input)
         {
-          mlt_log_verbose( NULL, "%s: no jack buffer for input port %ld\n", __FUNCTION__, channel);
-          return 1;
+          procinfo->jack_input_buffers[channel] = inputs[channel];
+          if (!procinfo->jack_input_buffers[channel])
+            {
+              mlt_log_verbose( NULL, "%s: no jack buffer for input port %ld\n", __FUNCTION__, channel);
+              return 1;
+            }
         }
-
       procinfo->jack_output_buffers[channel] = outputs[channel];
       if (!procinfo->jack_output_buffers[channel])
         {