Prevent a voice channel from sending data before a renderer is set.

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 45 matching lines @@
                             engine) {  // volume
   }
 };
 }  // namespace
 
 class FakeAudioSink : public webrtc::AudioSinkInterface {
  public:
   void OnData(const Data& audio) override {}
 };
 
+class FakeAudioSource : public cricket::AudioSource {};
+
 class WebRtcVoiceEngineTestFake : public testing::Test {
  public:
   WebRtcVoiceEngineTestFake() : WebRtcVoiceEngineTestFake("") {}
 
   explicit WebRtcVoiceEngineTestFake(const char* field_trials)
       : call_(webrtc::Call::Config()),
         engine_(new FakeVoEWrapper(&voe_)),
         channel_(nullptr),
+        fake_source_(new FakeAudioSource()),
         override_field_trials_(field_trials) {
     send_parameters_.codecs.push_back(kPcmuCodec);
     recv_parameters_.codecs.push_back(kPcmuCodec);
   }
   bool SetupEngine() {
     if (!engine_.Init(rtc::Thread::Current())) {
       return false;
     }
     channel_ = engine_.CreateChannel(&call_, cricket::MediaConfig(),
                                      cricket::AudioOptions());
     return (channel_ != nullptr);
   }
   bool SetupEngineWithRecvStream() {
     if (!SetupEngine()) {
       return false;
     }
     return channel_->AddRecvStream(
         cricket::StreamParams::CreateLegacy(kSsrc1));
   }
   bool SetupEngineWithSendStream() {
     if (!SetupEngine()) {
       return false;
     }
-    return channel_->AddSendStream(
-        cricket::StreamParams::CreateLegacy(kSsrc1));
+    if (!channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc1))) {
+      return false;
+    }
+    return channel_->SetAudioSend(kSsrc1, true, nullptr, fake_source_.get());
   }
   void SetupForMultiSendStream() {
     EXPECT_TRUE(SetupEngineWithSendStream());
     // Remove stream added in Setup.
     EXPECT_TRUE(call_.GetAudioSendStream(kSsrc1));
     EXPECT_TRUE(channel_->RemoveSendStream(kSsrc1));
     // Verify the channel does not exist.
     EXPECT_FALSE(call_.GetAudioSendStream(kSsrc1));
   }
   void DeliverPacket(const void* data, int len) {
@@ skipping 285 matching lines @@
     EXPECT_EQ(info.capture_start_ntp_time_ms, stats.capture_start_ntp_time_ms);
   }
 
  protected:
   cricket::FakeCall call_;
   cricket::FakeWebRtcVoiceEngine voe_;
   cricket::WebRtcVoiceEngine engine_;
   cricket::VoiceMediaChannel* channel_;
   cricket::AudioSendParameters send_parameters_;
   cricket::AudioRecvParameters recv_parameters_;
+  rtc::scoped_ptr<FakeAudioSource> fake_source_;

[the sun, 2016/03/03 15:15:25]

No need for a scoped_ptr/unique_ptr here.

 
  private:
   webrtc::test::ScopedFieldTrials override_field_trials_;
 };
 
 // Tests that our stub library "works".
 TEST_F(WebRtcVoiceEngineTestFake, StartupShutdown) {
   EXPECT_FALSE(voe_.IsInited());
   EXPECT_TRUE(engine_.Init(rtc::Thread::Current()));
   EXPECT_TRUE(voe_.IsInited());
@@ skipping 1609 matching lines @@
 // Test that we can add and remove send streams.
 TEST_F(WebRtcVoiceEngineTestFake, CreateAndDeleteMultipleSendStreams) {
   SetupForMultiSendStream();
 
   // Set the global state for sending.
   EXPECT_TRUE(channel_->SetSend(cricket::SEND_MICROPHONE));
 
   for (uint32_t ssrc : kSsrcs4) {
     EXPECT_TRUE(channel_->AddSendStream(
         cricket::StreamParams::CreateLegacy(ssrc)));
+    EXPECT_TRUE(
+        channel_->SetAudioSend(ssrc, true, nullptr, fake_source_.get()));
     // Verify that we are in a sending state for all the created streams.
     EXPECT_TRUE(voe_.GetSend(GetSendStreamConfig(ssrc).voe_channel_id));
   }
   EXPECT_EQ(arraysize(kSsrcs4), call_.GetAudioSendStreams().size());
 
   // Delete the send streams.
   for (uint32_t ssrc : kSsrcs4) {
     EXPECT_TRUE(channel_->RemoveSendStream(ssrc));
     EXPECT_FALSE(call_.GetAudioSendStream(ssrc));
     EXPECT_FALSE(channel_->RemoveSendStream(ssrc));
@@ skipping 40 matching lines @@
 }
 
 // Test we can SetSend on all send streams correctly.
 TEST_F(WebRtcVoiceEngineTestFake, SetSendWithMultipleSendStreams) {
   SetupForMultiSendStream();
 
   // Create the send channels and they should be a SEND_NOTHING date.
   for (uint32_t ssrc : kSsrcs4) {
     EXPECT_TRUE(channel_->AddSendStream(
         cricket::StreamParams::CreateLegacy(ssrc)));
+    EXPECT_TRUE(
+        channel_->SetAudioSend(ssrc, true, nullptr, fake_source_.get()));
     int channel_num = voe_.GetLastChannel();
     EXPECT_FALSE(voe_.GetSend(channel_num));
   }
 
   // Set the global state for starting sending.
   EXPECT_TRUE(channel_->SetSend(cricket::SEND_MICROPHONE));
   for (uint32_t ssrc : kSsrcs4) {
     // Verify that we are in a sending state for all the send streams.
     int channel_num = GetSendStreamConfig(ssrc).voe_channel_id;
     EXPECT_TRUE(voe_.GetSend(channel_num));
@@ skipping 1189 matching lines @@
   cricket::WebRtcVoiceEngine engine;
   EXPECT_TRUE(engine.Init(rtc::Thread::Current()));
   std::unique_ptr<webrtc::Call> call(
       webrtc::Call::Create(webrtc::Call::Config()));
   cricket::WebRtcVoiceMediaChannel channel(&engine, cricket::MediaConfig(),
                                            cricket::AudioOptions(), call.get());
   cricket::AudioRecvParameters parameters;
   parameters.codecs = engine.codecs();
   EXPECT_TRUE(channel.SetRecvParameters(parameters));
 }