Inform jitter buffer about FlexFEC protection.

webrtc/call/flexfec_receive_stream.h

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_CALL_FLEXFEC_RECEIVE_STREAM_H_
 #define WEBRTC_CALL_FLEXFEC_RECEIVE_STREAM_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "webrtc/api/call/transport.h"
 #include "webrtc/config.h"
 
 namespace webrtc {
 
+class FlexfecProtectionMediator {
+ public:
+  // Is the media stream described by |ssrc| protected by FlexFEC?
+  virtual bool IsProtectedByFlexfec(uint32_t ssrc) = 0;
+
+ protected:
+  virtual ~FlexfecProtectionMediator() = default;
+};
+
 class FlexfecReceiveStream {
  public:
   struct Stats {
     std::string ToString(int64_t time_ms) const;
 
     // TODO(brandtr): Add appropriate stats here.
     int flexfec_bitrate_bps;
   };
 
   struct Config {
@@ skipping 48 matching lines @@
 
   virtual Stats GetStats() const = 0;
 
  protected:
   virtual ~FlexfecReceiveStream() = default;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_CALL_FLEXFEC_RECEIVE_STREAM_H_