partial fix for #5871 - midi-buffer size

diff --git a/libs/ardour/thread_buffers.cc b/libs/ardour/thread_buffers.cc
index e469187ce9497709d8a54240a05aef9a3ed8757e..94490ca912487420c4fdf956ee60b555fb93e7cc 100644 (file)
--- a/libs/ardour/thread_buffers.cc
+++ b/libs/ardour/thread_buffers.cc
@@ -60,7 +60,9 @@ ThreadBuffers::ensure_buffers (ChanCount howmany)
 
        for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
                size_t count = std::max (scratch_buffers->available().get(*t), howmany.get(*t));
-               size_t size = _engine->raw_buffer_size (*t) / sizeof (Sample);
+               size_t size = (*t == DataType::MIDI)
+                       ? _engine->raw_buffer_size (*t)
+                       : _engine->raw_buffer_size (*t) / sizeof (Sample);
 
                scratch_buffers->ensure_buffers (*t, count, size);
                mix_buffers->ensure_buffers (*t, count, size);