update comment regarding lv2 buffersizes

diff --git a/libs/ardour/lv2_plugin.cc b/libs/ardour/lv2_plugin.cc
index 89a57efa66d4ead844777e2deb3f1363bc3ff63a..62a22bb4dc912da8c244ec58abe1d131fefc7b17 100644 (file)
--- a/libs/ardour/lv2_plugin.cc
+++ b/libs/ardour/lv2_plugin.cc
@@ -360,9 +360,12 @@ LV2Plugin::init(const void* c_plugin, framecnt_t rate)
        LV2_URID atom_Int = _uri_map.uri_to_id(LV2_ATOM__Int);
        static const int32_t _min_block_length = 1;   // may happen during split-cycles
        static const int32_t _max_block_length = 8192; // max possible (with all engines and during export)
-       /* @drobilla: Does it make sense to re-instantiate all plugins
-        * whenever the buffersize changes?
-        * Is there a way to find plugins that require the min/max blocksize option?
+       /* Consider updating max-block-size whenever the buffersize changes.
+        * It requires re-instantiating the plugin (which is a non-realtime operation),
+        * so it should be done lightly and only for plugins that require it.
+        *
+        * given that the block-size can change at any time (split-cycles) ardour currently
+        * does not support plugins that require bufz_fixedBlockLength.
         */
        LV2_Options_Option options[] = {
                { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__minBlockLength),