Wire up FlexFEC in VideoEngine2.

webrtc/config.cc

Index: webrtc/config.cc
diff --git a/webrtc/config.cc b/webrtc/config.cc
index a1789a7f1dbc9a15878baa3d7ad9d800fbb83991..f8e3602851c5640d57dc6e2f436f64f623ff6923 100644
--- a/webrtc/config.cc
+++ b/webrtc/config.cc
@@ -31,6 +31,12 @@ std::string UlpfecConfig::ToString() const {
   return ss.str();
 }
 
+bool UlpfecConfig::operator==(const UlpfecConfig& other) const {
+  return ulpfec_payload_type == other.ulpfec_payload_type &&
+         red_payload_type == other.red_payload_type &&
+         red_rtx_payload_type == other.red_rtx_payload_type;
+}
+
 FlexfecConfig::FlexfecConfig()
     : flexfec_payload_type(-1), flexfec_ssrc(0), protected_media_ssrcs() {}
 
@@ -50,6 +56,25 @@ std::string FlexfecConfig::ToString() const {
   return ss.str();
 }
 
+bool FlexfecConfig::IsCompleteAndEnabled() const {
+  // Check if FlexFEC is enabled.
+  if (flexfec_payload_type < 0)
+    return false;
+  // Do we have the necessary SSRC information?
+  if (flexfec_ssrc == 0)
+    return false;
+  // TODO(brandtr): Update this check when we support multistream protection.
+  if (protected_media_ssrcs.size() != 1u)
+    return false;
+  return true;
+}
+
+bool FlexfecConfig::operator==(const FlexfecConfig& other) const {
+  return flexfec_payload_type == other.flexfec_payload_type &&
+         flexfec_ssrc == other.flexfec_ssrc &&
+         protected_media_ssrcs == other.protected_media_ssrcs;
+}
+
 std::string RtpExtension::ToString() const {
   std::stringstream ss;
   ss << "{uri: " << uri;