Support encrypted RTP extensions (RFC 6904)

webrtc/media/engine/webrtcmediaengine_unittest.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 126 matching lines @@
 
 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundant) {
   std::vector<RtpExtension> extensions = MakeRedundantExtensions();
   std::vector<webrtc::RtpExtension> filtered =
       FilterRtpExtensions(extensions, SupportedExtensions2, true);
   EXPECT_EQ(6, filtered.size());
   EXPECT_TRUE(IsSorted(filtered));
   EXPECT_NE(filtered[0].uri, filtered[1].uri);
 }
 
+TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantEncrypted_1) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(webrtc::RtpExtension("b", 1));
+  extensions.push_back(webrtc::RtpExtension("b", 2, true));
+  extensions.push_back(webrtc::RtpExtension("c", 3));
+  extensions.push_back(webrtc::RtpExtension("b", 4));
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true);
+  EXPECT_EQ(3, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+  EXPECT_EQ(filtered[0].uri, filtered[1].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+  EXPECT_NE(filtered[0].uri, filtered[2].uri);
+  EXPECT_NE(filtered[1].uri, filtered[2].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantEncrypted_2) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(webrtc::RtpExtension("b", 1, true));
+  extensions.push_back(webrtc::RtpExtension("b", 2));
+  extensions.push_back(webrtc::RtpExtension("c", 3));
+  extensions.push_back(webrtc::RtpExtension("b", 4));
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true);
+  EXPECT_EQ(3, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+  EXPECT_EQ(filtered[0].uri, filtered[1].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+  EXPECT_NE(filtered[0].uri, filtered[2].uri);
+  EXPECT_NE(filtered[1].uri, filtered[2].uri);
+}
+
 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantBwe_1) {
   std::vector<RtpExtension> extensions;
   extensions.push_back(
       RtpExtension(RtpExtension::kTransportSequenceNumberUri, 3));
   extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 9));
   extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 6));
   extensions.push_back(
       RtpExtension(RtpExtension::kTransportSequenceNumberUri, 1));
   extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
   std::vector<webrtc::RtpExtension> filtered =
       FilterRtpExtensions(extensions, SupportedExtensions2, true);
   EXPECT_EQ(1, filtered.size());
   EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[0].uri);
 }
 
+TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantBweEncrypted_1) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 3));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 4, true));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 9));
+  extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 6));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 1));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 2, true));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true);
+  EXPECT_EQ(2, filtered.size());
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[0].uri);
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[1].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+}
+
 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantBwe_2) {
   std::vector<RtpExtension> extensions;
   extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 1));
   extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 14));
   extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 7));
   std::vector<webrtc::RtpExtension> filtered =
       FilterRtpExtensions(extensions, SupportedExtensions2, true);
   EXPECT_EQ(1, filtered.size());
   EXPECT_EQ(RtpExtension::kAbsSendTimeUri, filtered[0].uri);
 }
@@ skipping 14 matching lines @@
   EXPECT_TRUE(engine);
 }
 
 TEST(WebRtcMediaEngineFactoryTest, CreateWithBuiltinDecoders) {
   std::unique_ptr<MediaEngineInterface> engine(WebRtcMediaEngineFactory::Create(
       nullptr, webrtc::CreateBuiltinAudioDecoderFactory(), nullptr, nullptr));
   EXPECT_TRUE(engine);
 }
 
 }  // namespace cricket