commit 63b045cad9727021652ef615f74e366f26a4827c
Author: Sjoerd Simons <sjoerd@luon.net>
Date:   Sun Dec 9 23:54:13 2007 +0100

    Don't send the SERVER -> CLIENT PA_COMMANDS introduced in protocol version 12
    to connections with a protocol version smaller as 12

diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c
index 46405f1..4f58279 100644
--- a/src/pulsecore/protocol-native.c
+++ b/src/pulsecore/protocol-native.c
@@ -1069,6 +1069,9 @@ static void sink_input_suspend_cb(pa_sink_input *i, pa_bool_t suspend) {
     s = PLAYBACK_STREAM(i->userdata);
     playback_stream_assert_ref(s);
 
+    if (s->connection->version < 12)
+      return;
+
     t = pa_tagstruct_new(NULL, 0);
     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_SUSPENDED);
     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
@@ -1086,6 +1089,9 @@ static void sink_input_moved_cb(pa_sink_input *i) {
     s = PLAYBACK_STREAM(i->userdata);
     playback_stream_assert_ref(s);
 
+    if (s->connection->version < 12)
+      return;
+
     t = pa_tagstruct_new(NULL, 0);
     pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_MOVED);
     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
@@ -1142,6 +1148,9 @@ static void source_output_suspend_cb(pa_source_output *o, pa_bool_t suspend) {
     s = RECORD_STREAM(o->userdata);
     record_stream_assert_ref(s);
 
+    if (s->connection->version < 12)
+      return;
+
     t = pa_tagstruct_new(NULL, 0);
     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_SUSPENDED);
     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */
@@ -1159,6 +1168,9 @@ static void source_output_moved_cb(pa_source_output *o) {
     s = RECORD_STREAM(o->userdata);
     record_stream_assert_ref(s);
 
+    if (s->connection->version < 12)
+      return;
+
     t = pa_tagstruct_new(NULL, 0);
     pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_MOVED);
     pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */