# HG changeset patch
# User Chris Cannam
# Date 1415904625 0
# Node ID c2e152d8a9d40fe7768c54157ad81c26ffba9a79
# Parent  c1112adfd270fd1362395e4bf8c7583b5b66bccc
Comment

diff -r c1112adfd270 -r c2e152d8a9d4 src/MatchFeatureFeeder.cpp
--- a/src/MatchFeatureFeeder.cpp	Thu Nov 13 13:59:41 2014 +0000
+++ b/src/MatchFeatureFeeder.cpp	Thu Nov 13 18:50:25 2014 +0000
@@ -32,6 +32,12 @@
 void
 MatchFeatureFeeder::feed(vector<double> f1, vector<double> f2)
 {
+    // We maintain two FIFO queues of feature vectors, one per input
+    // stream.  When the match-feeder function is entered, it knows
+    // that it has at least one feature in each queue.  It loops,
+    // processing up to one feature per matcher, until a queue is
+    // empty.  Then it returns, to be called again with more data.
+
     q1.push(f1);
     q2.push(f2);