Generalize FlexfecReceiveStream::Config. (CL1)

webrtc/api/call/flexfec_receive_stream.h

Index: webrtc/api/call/flexfec_receive_stream.h
diff --git a/webrtc/api/call/flexfec_receive_stream.h b/webrtc/api/call/flexfec_receive_stream.h
index 5918f7730fa9b081ecbe09ccf9392972177e19e4..64b1d5903fc78290d04318e7e3c8ce9501ed2af3 100644
--- a/webrtc/api/call/flexfec_receive_stream.h
+++ b/webrtc/api/call/flexfec_receive_stream.h
@@ -12,7 +12,9 @@
 #define WEBRTC_API_CALL_FLEXFEC_RECEIVE_STREAM_H_
 
 #include <string>
+#include <vector>
 
+#include "webrtc/api/call/transport.h"
 #include "webrtc/config.h"
 
 namespace webrtc {
@@ -32,10 +34,39 @@ class FlexfecReceiveStream {
     int flexfec_bitrate_bps;
   };
 
-  // TODO(brandtr): When we add multistream protection, and thus add a
-  // FlexfecSendStream class, remove FlexfecConfig from config.h and add
-  // the appropriate configs here and in FlexfecSendStream.
-  using Config = FlexfecConfig;
+  struct Config {
+    std::string ToString() const;
+
+    // Payload type for FlexFEC.
+    int payload_type = -1;
+
+    // SSRC for FlexFEC stream to be received.
+    uint32_t remote_ssrc = 0;
+
+    // Vector containing a single element, corresponding to the SSRC of the
+    // media stream being protected by this FlexFEC stream. The vector MUST have
+    // size 1.
+    //
+    // TODO(brandtr): Update comment above when we support multistream
+    // protection.
+    std::vector<uint32_t> protected_media_ssrcs;
+
+    // SSRC for RTCP reports to be sent.
+    uint32_t local_ssrc = 0;
+
+    // What RTCP mode to use in the reports.
+    RtcpMode rtcp_mode = RtcpMode::kCompound;
+
+    // Transport for outgoing RTCP packets.
+    Transport* rtcp_send_transport = nullptr;
+
+    // |transport_cc| is true whenever the send-side BWE RTCP feedback message
+    // has been negotiated. This is a prerequisite for enabling send-side BWE.
+    bool transport_cc = false;
+
+    // RTP header extensions that have been negotiated for this track.
+    std::vector<RtpExtension> extensions;
+  };
 
   // Starts stream activity.
   // When a stream is active, it can receive and process packets.