Pick a matching CN codec, rather than the first CN codec.

webrtc/media/engine/webrtcvoiceengine_unittest.cc

 /*
  *  Copyright (c) 2008 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 1225 matching lines @@
   parameters.codecs[0].id = 96;
   parameters.codecs[0].bitrate = 48000;
   const int initial_num = call_.GetNumCreatedSendStreams();
   SetSendParameters(parameters);
   EXPECT_EQ(initial_num + 1, call_.GetNumCreatedSendStreams());
   const auto& send_codec_spec = GetSendStreamConfig(kSsrc1).send_codec_spec;
   EXPECT_EQ(96, send_codec_spec.codec_inst.pltype);
   EXPECT_EQ(48000, send_codec_spec.codec_inst.rate);
   EXPECT_STREQ("ISAC", send_codec_spec.codec_inst.plname);
   EXPECT_NE(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq);
-  EXPECT_EQ(13, send_codec_spec.cng_payload_type);
-  EXPECT_EQ(webrtc::kFreq8000Hz, send_codec_spec.cng_plfreq);
+  EXPECT_EQ(-1, send_codec_spec.cng_payload_type);
   EXPECT_FALSE(channel_->CanInsertDtmf());
 }
 
 // Test that VoE Channel doesn't call SetSendCodec again if same codec is tried
 // to apply.
 TEST_F(WebRtcVoiceEngineTestFake, DontResetSetSendCodec) {
   EXPECT_TRUE(SetupSendStream());
   cricket::AudioSendParameters parameters;
   parameters.codecs.push_back(kIsacCodec);
   parameters.codecs.push_back(kPcmuCodec);
@@ skipping 1084 matching lines @@
   }
 
   // Change to PCMU(8K) and CN(16K).
   parameters.codecs[0] = kPcmuCodec;
   SetSendParameters(parameters);
   for (uint32_t ssrc : kSsrcs4) {
     ASSERT_TRUE(call_.GetAudioSendStream(ssrc) != nullptr);
     const auto& send_codec_spec =
         call_.GetAudioSendStream(ssrc)->GetConfig().send_codec_spec;
     EXPECT_STREQ("PCMU", send_codec_spec.codec_inst.plname);
-    EXPECT_NE(send_codec_spec.codec_inst.plfreq, send_codec_spec.cng_plfreq);
-    EXPECT_EQ(97, send_codec_spec.cng_payload_type);
-    EXPECT_EQ(webrtc::kFreq16000Hz, send_codec_spec.cng_plfreq);
+    EXPECT_EQ(-1, send_codec_spec.cng_payload_type);
   }
 }
 
 // Test we can SetSend on all send streams correctly.
 TEST_F(WebRtcVoiceEngineTestFake, SetSendWithMultipleSendStreams) {
   SetupForMultiSendStream();
 
   // Create the send channels and they should be a "not sending" date.
   for (uint32_t ssrc : kSsrcs4) {
     EXPECT_TRUE(channel_->AddSendStream(
@@ skipping 1362 matching lines @@
   // Without this cast, the comparison turned unsigned and, thus, failed for -1.
   const int num_specs = static_cast<int>(specs.size());
   EXPECT_GE(find_codec({"cn", 8000, 1}), num_specs);
   EXPECT_GE(find_codec({"cn", 16000, 1}), num_specs);
   EXPECT_EQ(find_codec({"cn", 32000, 1}), -1);
   EXPECT_GE(find_codec({"telephone-event", 8000, 1}), num_specs);
   EXPECT_GE(find_codec({"telephone-event", 16000, 1}), num_specs);
   EXPECT_GE(find_codec({"telephone-event", 32000, 1}), num_specs);
   EXPECT_GE(find_codec({"telephone-event", 48000, 1}), num_specs);
 }