Filter overlapping RTP header extensions.

talk/media/webrtc/webrtcvideoengine2.cc

 /*
  * libjingle
  * Copyright 2014 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 18 matching lines @@
 #include "talk/media/webrtc/webrtcvideoengine2.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 
 #include "talk/media/base/videocapturer.h"
 #include "talk/media/base/videorenderer.h"
 #include "talk/media/webrtc/constants.h"
 #include "talk/media/webrtc/simulcast.h"
+#include "talk/media/webrtc/webrtcmediaengine.h"
 #include "talk/media/webrtc/webrtcvideoencoderfactory.h"
 #include "talk/media/webrtc/webrtcvideoframe.h"
 #include "talk/media/webrtc/webrtcvoiceengine.h"
 #include "webrtc/base/buffer.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/stringutils.h"
 #include "webrtc/base/timeutils.h"
 #include "webrtc/base/trace_event.h"
 #include "webrtc/call.h"
 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
@@ skipping 1488 matching lines @@
 
 bool WebRtcVideoChannel2::SetSendRtpHeaderExtensions(
     const std::vector<RtpHeaderExtension>& extensions) {
   TRACE_EVENT0("webrtc", "WebRtcVideoChannel2::SetSendRtpHeaderExtensions");
   LOG(LS_INFO) << "SetSendRtpHeaderExtensions: "
                << RtpExtensionsToString(extensions);
   if (!ValidateRtpHeaderExtensionIds(extensions))
     return false;
 
   std::vector<webrtc::RtpExtension> filtered_extensions =
-      FilterRtpExtensions(extensions);
+      FilterRtpExtensions(FilterRedundantRtpExtensions(
+          extensions, kBweExtensionPriorities, kBweExtensionPrioritiesLength));
   if (!RtpExtensionsHaveChanged(send_rtp_extensions_, filtered_extensions)) {
     LOG(LS_INFO) << "Ignoring call to SetSendRtpHeaderExtensions because "
                     "header extensions haven't changed.";
     return true;
   }
 
   send_rtp_extensions_ = filtered_extensions;
 
   const webrtc::RtpExtension* cvo_extension = FindHeaderExtension(
       send_rtp_extensions_, kRtpVideoRotationHeaderExtension);
@@ skipping 1191 matching lines @@
       video_codecs[i].rtx_payload_type = rtx_mapping[video_codecs[i].codec.id];
     }
   }
 
   return video_codecs;
 }
 
 }  // namespace cricket
 
 #endif  // HAVE_WEBRTC_VIDEO