* add new API function pa_stream_get_buffer_attr().

* modify pacat.c to make use of that new API
* extend protocol to allow transfer of the necessary information
* update protocol version accordingly


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@976 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/polypcore/memblockq.c

@@ -622,3 +622,15 @@ void pa_memblockq_prebuf_force(pa_memblockq *bq) {
     if (bq->state == RUNNING && bq->prebuf > 0)
         bq->state = PREBUF;
 }
+
+size_t pa_memblockq_get_maxlength(pa_memblockq *bq) {
+    assert(bq);
+
+    return bq->maxlength;
+}
+
+size_t pa_memblockq_get_prebuf(pa_memblockq *bq) {
+    assert(bq);
+
+    return bq->prebuf;
+}