Revert r9164 "Adding a new constraint to set NetEq buffer capacity ..."

This reverts commit fd32f35aff8fc28ec084bddc274de284e0422a57.

TBR=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/55369004

Cr-Commit-Position: refs/heads/master@{#9165}
diff --git a/talk/app/webrtc/java/jni/peerconnection_jni.cc b/talk/app/webrtc/java/jni/peerconnection_jni.cc
index f8f363a..460ad7e 100644
--- a/talk/app/webrtc/java/jni/peerconnection_jni.cc
+++ b/talk/app/webrtc/java/jni/peerconnection_jni.cc
@@ -1304,9 +1304,6 @@
       "Ljava/util/List;");
   jobject j_ice_servers = GetObjectField(jni, j_rtc_config, j_ice_servers_id);
 
-  jfieldID j_audio_jitter_buffer_max_packets_id = GetFieldID(
-      jni, j_rtc_config_class, "audioJitterBufferMaxPackets",
-      "I");
   PeerConnectionInterface::RTCConfiguration rtc_config;
 
   rtc_config.type =
@@ -1315,8 +1312,6 @@
   rtc_config.tcp_candidate_policy =
       JavaTcpCandidatePolicyToNativeType(jni, j_tcp_candidate_policy);
   JavaIceServersToJsepIceServers(jni, j_ice_servers, &rtc_config.servers);
-  rtc_config.audio_jitter_buffer_max_packets =
-      GetIntField(jni, j_rtc_config, j_audio_jitter_buffer_max_packets_id);
 
   PCOJava* observer = reinterpret_cast<PCOJava*>(observer_p);
   observer->SetConstraints(new ConstraintsWrapper(jni, j_constraints));
diff --git a/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java b/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
index 80e7bfe..8fcc975 100644
--- a/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
+++ b/talk/app/webrtc/java/src/org/webrtc/PeerConnection.java
@@ -128,14 +128,12 @@
     public List<IceServer> iceServers;
     public BundlePolicy bundlePolicy;
     public TcpCandidatePolicy tcpCandidatePolicy;
-    public int audioJitterBufferMaxPackets;
 
     public RTCConfiguration(List<IceServer> iceServers) {
       iceTransportsType = IceTransportsType.ALL;
       bundlePolicy = BundlePolicy.BALANCED;
       tcpCandidatePolicy = TcpCandidatePolicy.ENABLED;
       this.iceServers = iceServers;
-      audioJitterBufferMaxPackets = 50;
     }
   };
 
diff --git a/talk/app/webrtc/peerconnection.cc b/talk/app/webrtc/peerconnection.cc
index 5226041..39284c1 100644
--- a/talk/app/webrtc/peerconnection.cc
+++ b/talk/app/webrtc/peerconnection.cc
@@ -382,7 +382,9 @@
 
   // Initialize the WebRtcSession. It creates transport channels etc.
   if (!session_->Initialize(factory_->options(), constraints,
-                            dtls_identity_service, configuration))
+                            dtls_identity_service,
+                            configuration.type,
+                            configuration.bundle_policy))
     return false;
 
   // Register PeerConnection as receiver of local ice candidates.
diff --git a/talk/app/webrtc/peerconnectioninterface.h b/talk/app/webrtc/peerconnectioninterface.h
index e32676e..ed4f5b3 100644
--- a/talk/app/webrtc/peerconnectioninterface.h
+++ b/talk/app/webrtc/peerconnectioninterface.h
@@ -211,13 +211,11 @@
     IceServers servers;
     BundlePolicy bundle_policy;
     TcpCandidatePolicy tcp_candidate_policy;
-    int audio_jitter_buffer_max_packets;
 
     RTCConfiguration()
         : type(kAll),
           bundle_policy(kBundlePolicyBalanced),
-          tcp_candidate_policy(kTcpCandidatePolicyEnabled),
-          audio_jitter_buffer_max_packets(50) {}
+          tcp_candidate_policy(kTcpCandidatePolicyEnabled) {}
   };
 
   struct RTCOfferAnswerOptions {
diff --git a/talk/app/webrtc/webrtcsession.cc b/talk/app/webrtc/webrtcsession.cc
index e2a9d60..dd5d858 100644
--- a/talk/app/webrtc/webrtcsession.cc
+++ b/talk/app/webrtc/webrtcsession.cc
@@ -521,8 +521,9 @@
     const PeerConnectionFactoryInterface::Options& options,
     const MediaConstraintsInterface*  constraints,
     DTLSIdentityServiceInterface* dtls_identity_service,
-    const PeerConnectionInterface::RTCConfiguration& rtc_configuration) {
-  bundle_policy_ = rtc_configuration.bundle_policy;
+    PeerConnectionInterface::IceTransportsType ice_transport_type,
+    PeerConnectionInterface::BundlePolicy bundle_policy) {
+  bundle_policy_ = bundle_policy;
 
   // TODO(perkj): Take |constraints| into consideration. Return false if not all
   // mandatory constraints can be fulfilled. Note that |constraints|
@@ -639,9 +640,6 @@
       MediaConstraintsInterface::kCombinedAudioVideoBwe,
       &audio_options_.combined_audio_video_bwe);
 
-  audio_options_.audio_jitter_buffer_max_packets.Set(
-      rtc_configuration.audio_jitter_buffer_max_packets);
-
   const cricket::VideoCodec default_codec(
       JsepSessionDescription::kDefaultVideoCodecId,
       JsepSessionDescription::kDefaultVideoCodecName,
@@ -669,7 +667,7 @@
     webrtc_session_desc_factory_->SetSdesPolicy(cricket::SEC_DISABLED);
   }
   port_allocator()->set_candidate_filter(
-      ConvertIceTransportTypeToCandidateFilter(rtc_configuration.type));
+      ConvertIceTransportTypeToCandidateFilter(ice_transport_type));
   return true;
 }
 
diff --git a/talk/app/webrtc/webrtcsession.h b/talk/app/webrtc/webrtcsession.h
index aa1deb5..ce0fb0c 100644
--- a/talk/app/webrtc/webrtcsession.h
+++ b/talk/app/webrtc/webrtcsession.h
@@ -117,11 +117,11 @@
                 MediaStreamSignaling* mediastream_signaling);
   virtual ~WebRtcSession();
 
-  bool Initialize(
-      const PeerConnectionFactoryInterface::Options& options,
-      const MediaConstraintsInterface* constraints,
-      DTLSIdentityServiceInterface* dtls_identity_service,
-      const PeerConnectionInterface::RTCConfiguration& rtc_configuration);
+  bool Initialize(const PeerConnectionFactoryInterface::Options& options,
+                  const MediaConstraintsInterface* constraints,
+                  DTLSIdentityServiceInterface* dtls_identity_service,
+                  PeerConnectionInterface::IceTransportsType ice_transport_type,
+                  PeerConnectionInterface::BundlePolicy bundle_policy);
   // Deletes the voice, video and data channel and changes the session state
   // to STATE_RECEIVEDTERMINATE.
   void Terminate();
diff --git a/talk/app/webrtc/webrtcsession_unittest.cc b/talk/app/webrtc/webrtcsession_unittest.cc
index e4f39f8..3efc112 100644
--- a/talk/app/webrtc/webrtcsession_unittest.cc
+++ b/talk/app/webrtc/webrtcsession_unittest.cc
@@ -156,8 +156,6 @@
     "a=rtpmap:96 rtx/90000\r\n"
     "a=fmtp:96 apt=0\r\n";
 
-static const int kAudioJitterBufferMaxPackets = 50;
-
 // Add some extra |newlines| to the |message| after |line|.
 static void InjectAfter(const std::string& line,
                         const std::string& newlines,
@@ -385,7 +383,8 @@
 
   void Init(
       DTLSIdentityServiceInterface* identity_service,
-      const PeerConnectionInterface::RTCConfiguration& rtc_configuration) {
+      PeerConnectionInterface::IceTransportsType ice_transport_type,
+      PeerConnectionInterface::BundlePolicy bundle_policy) {
     ASSERT_TRUE(session_.get() == NULL);
     session_.reset(new WebRtcSessionForTest(
         channel_manager_.get(), rtc::Thread::Current(),
@@ -399,51 +398,33 @@
         observer_.ice_gathering_state_);
 
     EXPECT_TRUE(session_->Initialize(options_, constraints_.get(),
-                                     identity_service, rtc_configuration));
+                                     identity_service, ice_transport_type,
+                                     bundle_policy));
     session_->set_metrics_observer(&metrics_observer_);
   }
 
   void Init() {
-    PeerConnectionInterface::RTCConfiguration configuration;
-    configuration.type = PeerConnectionInterface::kAll;
-    configuration.bundle_policy =
-        PeerConnectionInterface::kBundlePolicyBalanced;
-    configuration.audio_jitter_buffer_max_packets =
-        kAudioJitterBufferMaxPackets;
-    Init(NULL, configuration);
+    Init(NULL, PeerConnectionInterface::kAll,
+         PeerConnectionInterface::kBundlePolicyBalanced);
   }
 
   void InitWithIceTransport(
       PeerConnectionInterface::IceTransportsType ice_transport_type) {
-    PeerConnectionInterface::RTCConfiguration configuration;
-    configuration.type = ice_transport_type;
-    configuration.bundle_policy =
-        PeerConnectionInterface::kBundlePolicyBalanced;
-    configuration.audio_jitter_buffer_max_packets =
-        kAudioJitterBufferMaxPackets;
-    Init(NULL, configuration);
+    Init(NULL, ice_transport_type,
+         PeerConnectionInterface::kBundlePolicyBalanced);
   }
 
   void InitWithBundlePolicy(
       PeerConnectionInterface::BundlePolicy bundle_policy) {
-    PeerConnectionInterface::RTCConfiguration configuration;
-    configuration.type = PeerConnectionInterface::kAll;
-    configuration.bundle_policy = bundle_policy;
-    configuration.audio_jitter_buffer_max_packets =
-        kAudioJitterBufferMaxPackets;
-    Init(NULL, configuration);
+    Init(NULL, PeerConnectionInterface::kAll, bundle_policy);
   }
 
   void InitWithDtls(bool identity_request_should_fail = false) {
     FakeIdentityService* identity_service = new FakeIdentityService();
     identity_service->set_should_fail(identity_request_should_fail);
-    PeerConnectionInterface::RTCConfiguration configuration;
-    configuration.type = PeerConnectionInterface::kAll;
-    configuration.bundle_policy =
-        PeerConnectionInterface::kBundlePolicyBalanced;
-    configuration.audio_jitter_buffer_max_packets =
-        kAudioJitterBufferMaxPackets;
-    Init(identity_service, configuration);
+    Init(identity_service,
+         PeerConnectionInterface::kAll,
+         PeerConnectionInterface::kBundlePolicyBalanced);
   }
 
   void InitWithDtmfCodec() {
diff --git a/talk/media/base/mediachannel.h b/talk/media/base/mediachannel.h
index d77ddbb..dd78f0e 100644
--- a/talk/media/base/mediachannel.h
+++ b/talk/media/base/mediachannel.h
@@ -150,8 +150,6 @@
     noise_suppression.SetFrom(change.noise_suppression);
     highpass_filter.SetFrom(change.highpass_filter);
     stereo_swapping.SetFrom(change.stereo_swapping);
-    audio_jitter_buffer_max_packets.SetFrom(
-        change.audio_jitter_buffer_max_packets);
     typing_detection.SetFrom(change.typing_detection);
     aecm_generate_comfort_noise.SetFrom(change.aecm_generate_comfort_noise);
     conference_mode.SetFrom(change.conference_mode);
@@ -182,7 +180,6 @@
         noise_suppression == o.noise_suppression &&
         highpass_filter == o.highpass_filter &&
         stereo_swapping == o.stereo_swapping &&
-        audio_jitter_buffer_max_packets == o.audio_jitter_buffer_max_packets &&
         typing_detection == o.typing_detection &&
         aecm_generate_comfort_noise == o.aecm_generate_comfort_noise &&
         conference_mode == o.conference_mode &&
@@ -213,8 +210,6 @@
     ost << ToStringIfSet("ns", noise_suppression);
     ost << ToStringIfSet("hf", highpass_filter);
     ost << ToStringIfSet("swap", stereo_swapping);
-    ost << ToStringIfSet("audio_jitter_buffer_max_packets",
-                         audio_jitter_buffer_max_packets);
     ost << ToStringIfSet("typing", typing_detection);
     ost << ToStringIfSet("comfort_noise", aecm_generate_comfort_noise);
     ost << ToStringIfSet("conference", conference_mode);
@@ -253,8 +248,6 @@
   Settable<bool> highpass_filter;
   // Audio processing to swap the left and right channels.
   Settable<bool> stereo_swapping;
-  // Audio receiver jitter buffer (NetEq) max capacity in number of packets.
-  Settable<int> audio_jitter_buffer_max_packets;
   // Audio processing to detect typing.
   Settable<bool> typing_detection;
   Settable<bool> aecm_generate_comfort_noise;
diff --git a/talk/media/webrtc/fakewebrtcvoiceengine.h b/talk/media/webrtc/fakewebrtcvoiceengine.h
index 5b86b53..24ef846 100644
--- a/talk/media/webrtc/fakewebrtcvoiceengine.h
+++ b/talk/media/webrtc/fakewebrtcvoiceengine.h
@@ -41,7 +41,6 @@
 #include "webrtc/base/checks.h"
 #include "webrtc/base/gunit.h"
 #include "webrtc/base/stringutils.h"
-#include "webrtc/config.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 
 namespace cricket {
@@ -214,8 +213,7 @@
           send_audio_level_ext_(-1),
           receive_audio_level_ext_(-1),
           send_absolute_sender_time_ext_(-1),
-          receive_absolute_sender_time_ext_(-1),
-          neteq_capacity(-1) {
+          receive_absolute_sender_time_ext_(-1) {
       memset(&send_codec, 0, sizeof(send_codec));
       memset(&rx_agc_config, 0, sizeof(rx_agc_config));
     }
@@ -251,7 +249,6 @@
     webrtc::CodecInst send_codec;
     webrtc::PacketTime last_rtp_packet_time;
     std::list<std::string> packets;
-    int neteq_capacity;
   };
 
   FakeWebRtcVoiceEngine(const cricket::AudioCodec* const* codecs,
@@ -394,7 +391,7 @@
                                 true);
     }
   }
-  int AddChannel(const webrtc::Config& config) {
+  int AddChannel() {
     if (fail_create_channel_) {
       return -1;
     }
@@ -404,9 +401,6 @@
       GetCodec(i, codec);
       ch->recv_codecs.push_back(codec);
     }
-    if (config.Get<webrtc::NetEqCapacityConfig>().enabled) {
-      ch->neteq_capacity = config.Get<webrtc::NetEqCapacityConfig>().capacity;
-    }
     channels_[++last_channel_] = ch;
     return last_channel_;
   }
@@ -453,11 +447,10 @@
     return &audio_processing_;
   }
   WEBRTC_FUNC(CreateChannel, ()) {
-    webrtc::Config empty_config;
-    return AddChannel(empty_config);
+    return AddChannel();
   }
-  WEBRTC_FUNC(CreateChannel, (const webrtc::Config& config)) {
-    return AddChannel(config);
+  WEBRTC_FUNC(CreateChannel, (const webrtc::Config& /*config*/)) {
+    return AddChannel();
   }
   WEBRTC_FUNC(DeleteChannel, (int channel)) {
     WEBRTC_CHECK_CHANNEL(channel);
@@ -1250,11 +1243,6 @@
   WEBRTC_STUB(GetAudioFrame, (int channel, int desired_sample_rate_hz,
                               webrtc::AudioFrame* frame));
   WEBRTC_STUB(SetExternalMixing, (int channel, bool enable));
-  int GetNetEqCapacity() const {
-    auto ch = channels_.find(last_channel_);
-    ASSERT(ch != channels_.end());
-    return ch->second->neteq_capacity;
-  }
 
  private:
   int GetNumDevices(int& num) {
diff --git a/talk/media/webrtc/webrtcvoiceengine.cc b/talk/media/webrtc/webrtcvoiceengine.cc
index fcf8ef7..baae3de 100644
--- a/talk/media/webrtc/webrtcvoiceengine.cc
+++ b/talk/media/webrtc/webrtcvoiceengine.cc
@@ -353,7 +353,6 @@
   options.noise_suppression.Set(true);
   options.highpass_filter.Set(true);
   options.stereo_swapping.Set(false);
-  options.audio_jitter_buffer_max_packets.Set(50);
   options.typing_detection.Set(true);
   options.conference_mode.Set(false);
   options.adjust_agc_delta.Set(0);
@@ -956,14 +955,6 @@
     }
   }
 
-  int audio_jitter_buffer_max_packets;
-  if (options.audio_jitter_buffer_max_packets.Get(
-          &audio_jitter_buffer_max_packets)) {
-    LOG(LS_INFO) << "NetEq capacity is " << audio_jitter_buffer_max_packets;
-    voe_config_.Set<webrtc::NetEqCapacityConfig>(
-        new webrtc::NetEqCapacityConfig(audio_jitter_buffer_max_packets));
-  }
-
   bool typing_detection;
   if (options.typing_detection.Get(&typing_detection)) {
     LOG(LS_INFO) << "Typing detection is enabled? " << typing_detection;
diff --git a/talk/media/webrtc/webrtcvoiceengine.h b/talk/media/webrtc/webrtcvoiceengine.h
index 242467d..4596c4d 100644
--- a/talk/media/webrtc/webrtcvoiceengine.h
+++ b/talk/media/webrtc/webrtcvoiceengine.h
@@ -46,7 +46,6 @@
 #include "webrtc/base/thread_checker.h"
 #include "webrtc/call.h"
 #include "webrtc/common.h"
-#include "webrtc/config.h"
 
 #if !defined(LIBPEERCONNECTION_LIB) && \
     !defined(LIBPEERCONNECTION_IMPLEMENTATION)
diff --git a/talk/media/webrtc/webrtcvoiceengine_unittest.cc b/talk/media/webrtc/webrtcvoiceengine_unittest.cc
index f995093..7737f34 100644
--- a/talk/media/webrtc/webrtcvoiceengine_unittest.cc
+++ b/talk/media/webrtc/webrtcvoiceengine_unittest.cc
@@ -2882,7 +2882,6 @@
   EXPECT_TRUE(typing_detection_enabled);
   EXPECT_EQ(ec_mode, webrtc::kEcConference);
   EXPECT_EQ(ns_mode, webrtc::kNsHighSuppression);
-  EXPECT_EQ(50, voe_.GetNetEqCapacity());  // From GetDefaultEngineOptions().
 
   // Turn echo cancellation off
   options.echo_cancellation.Set(false);
diff --git a/webrtc/config.h b/webrtc/config.h
index 09633ed..4e2faa3 100644
--- a/webrtc/config.h
+++ b/webrtc/config.h
@@ -113,20 +113,6 @@
   int min_transmit_bitrate_bps;
 };
 
-// Controls the capacity of the packet buffer in NetEq. The capacity is the
-// maximum number of packets that the buffer can contain. If the limit is
-// exceeded, the buffer will be flushed. The capacity does not affect the actual
-// audio delay in the general case, since this is governed by the target buffer
-// level (calculated from the jitter profile). It is only in the rare case of
-// severe network freezes that a higher capacity will lead to a (transient)
-// increase in audio delay.
-struct NetEqCapacityConfig {
-  NetEqCapacityConfig() : enabled(false), capacity(0) {}
-  explicit NetEqCapacityConfig(int value) : enabled(true), capacity(value) {}
-  bool enabled;
-  int capacity;
-};
-
 }  // namespace webrtc
 
 #endif  // WEBRTC_CONFIG_H_
diff --git a/webrtc/modules/audio_coding/main/acm2/audio_coding_module.cc b/webrtc/modules/audio_coding/main/acm2/audio_coding_module.cc
index 51b9a78..fa63491 100644
--- a/webrtc/modules/audio_coding/main/acm2/audio_coding_module.cc
+++ b/webrtc/modules/audio_coding/main/acm2/audio_coding_module.cc
@@ -10,7 +10,6 @@
 
 #include "webrtc/modules/audio_coding/main/interface/audio_coding_module.h"
 
-#include "webrtc/base/checks.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/audio_coding/main/acm2/acm_codec_database.h"
 #include "webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.h"
@@ -21,20 +20,13 @@
 
 // Create module
 AudioCodingModule* AudioCodingModule::Create(int id) {
-  Config config;
-  config.id = id;
-  config.clock = Clock::GetRealTimeClock();
-  return Create(config);
+  return Create(id, Clock::GetRealTimeClock());
 }
 
 AudioCodingModule* AudioCodingModule::Create(int id, Clock* clock) {
-  Config config;
+  AudioCodingModule::Config config;
   config.id = id;
   config.clock = clock;
-  return Create(config);
-}
-
-AudioCodingModule* AudioCodingModule::Create(const Config& config) {
   return new acm2::AudioCodingModuleImpl(config);
 }
 
diff --git a/webrtc/modules/audio_coding/main/interface/audio_coding_module.h b/webrtc/modules/audio_coding/main/interface/audio_coding_module.h
index 4660589..4d4a6f3 100644
--- a/webrtc/modules/audio_coding/main/interface/audio_coding_module.h
+++ b/webrtc/modules/audio_coding/main/interface/audio_coding_module.h
@@ -99,7 +99,6 @@
   //
   static AudioCodingModule* Create(int id);
   static AudioCodingModule* Create(int id, Clock* clock);
-  static AudioCodingModule* Create(const Config& config);
   virtual ~AudioCodingModule() {};
 
   ///////////////////////////////////////////////////////////////////////////
diff --git a/webrtc/voice_engine/channel.cc b/webrtc/voice_engine/channel.cc
index ba098d9..40a974b 100644
--- a/webrtc/voice_engine/channel.cc
+++ b/webrtc/voice_engine/channel.cc
@@ -10,12 +10,9 @@
 
 #include "webrtc/voice_engine/channel.h"
 
-#include <algorithm>
-
 #include "webrtc/base/format_macros.h"
 #include "webrtc/base/timeutils.h"
 #include "webrtc/common.h"
-#include "webrtc/config.h"
 #include "webrtc/modules/audio_device/include/audio_device.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 #include "webrtc/modules/interface/module_common_types.h"
@@ -760,6 +757,8 @@
         VoEModuleId(instanceId, channelId), Clock::GetRealTimeClock(), this,
         this, this, rtp_payload_registry_.get())),
     telephone_event_handler_(rtp_receiver_->GetTelephoneEventHandler()),
+    audio_coding_(AudioCodingModule::Create(
+        VoEModuleId(instanceId, channelId))),
     _rtpDumpIn(*RtpDump::CreateRtpDump()),
     _rtpDumpOut(*RtpDump::CreateRtpDump()),
     _outputAudioLevel(),
@@ -829,16 +828,6 @@
 {
     WEBRTC_TRACE(kTraceMemory, kTraceVoice, VoEId(_instanceId,_channelId),
                  "Channel::Channel() - ctor");
-    AudioCodingModule::Config acm_config;
-    acm_config.id = VoEModuleId(instanceId, channelId);
-    if (config.Get<NetEqCapacityConfig>().enabled) {
-      // Clamping the buffer capacity at 20 packets. While going lower will
-      // probably work, it makes little sense.
-      acm_config.neteq_config.max_packets_in_buffer =
-          std::max(20, config.Get<NetEqCapacityConfig>().capacity);
-    }
-    audio_coding_.reset(AudioCodingModule::Create(acm_config));
-
     _inbandDtmfQueue.ResetDtmf();
     _inbandDtmfGenerator.Init();
     _outputAudioLevel.Clear();