Make ostream<< for enum class H264PacketizationMode

webrtc/modules/include/module_common_types.h

Index: webrtc/modules/include/module_common_types.h
diff --git a/webrtc/modules/include/module_common_types.h b/webrtc/modules/include/module_common_types.h
index 3df93b6c89a050fb05603a0d5987a2a7c982a2d8..fa0826a551a456294310af4874aa6ec907247766 100644
--- a/webrtc/modules/include/module_common_types.h
+++ b/webrtc/modules/include/module_common_types.h
@@ -271,6 +271,22 @@ enum class H264PacketizationMode {
   SingleNalUnit        // Mode 0 - only single NALU allowed
 };
 
+// This function is declared inline because it is not clear which
+// .cc file it should belong to.
+// TODO(hta): Refactor. https://bugs.webrtc.org/6842
+inline std::ostream& operator<<(std::ostream& stream,
+                                H264PacketizationMode mode) {
+  switch (mode) {
+    case H264PacketizationMode::NonInterleaved:
+      stream << "NonInterleaved";
+      break;
+    case H264PacketizationMode::SingleNalUnit:
+      stream << "SingleNalUnit";
+      break;
+  }
+  return stream;
+}
+
 struct NaluInfo {
   uint8_t type;
   int sps_id;