fix: Add RTCAudioOptions and enable SW 3A for Linux. (#124)

* fix: Add RTCAudioOptions and enable SW 3A for Linux.

* fix.

Author: cloudwebrtc

include/rtc_peerconnection_factory.h

@@ -43,7 +43,8 @@ class RTCPeerConnectionFactory : public RefCountInterface {
   virtual scoped_refptr<RTCAudioSource> CreateAudioSource(
       const string audio_source_label,
       RTCAudioSource::SourceType source_type =
-          RTCAudioSource::SourceType::kMicrophone) = 0;
+          RTCAudioSource::SourceType::kMicrophone,
+        RTCAudioOptions options = RTCAudioOptions()) = 0;
 
   virtual scoped_refptr<RTCVideoSource> CreateVideoSource(
       scoped_refptr<RTCVideoCapturer> capturer, const string video_source_label,

include/rtc_types.h

@@ -108,6 +108,18 @@ struct SdpParseError {
 
 enum DesktopType { kScreen, kWindow };
 
+struct RTCAudioOptions {
+  RTCAudioOptions() {}
+
+  bool echo_cancellation = true;
+
+  bool auto_gain_control = true;
+
+  bool noise_suppression = true;
+
+  bool highpass_filter = false;
+};
+
 }  // namespace libwebrtc
 
 #endif  // LIB_WEBRTC_RTC_TYPES_HXX

src/libwebrtc.cc

@@ -34,7 +34,6 @@ LibWebRTC::CreateRTCPeerConnectionFactory() {
   scoped_refptr<RTCPeerConnectionFactory> rtc_peerconnection_factory =
       scoped_refptr<RTCPeerConnectionFactory>(
           new RefCountedObject<RTCPeerConnectionFactoryImpl>());
-  rtc_peerconnection_factory->Initialize();
   return rtc_peerconnection_factory;
 }
 

src/rtc_peerconnection_factory_impl.cc

@@ -203,10 +203,16 @@ RTCPeerConnectionFactoryImpl::CreateAudioSourceWithOptions(
 }
 
 scoped_refptr<RTCAudioSource> RTCPeerConnectionFactoryImpl::CreateAudioSource(
-    const string audio_source_label, RTCAudioSource::SourceType source_type) {
-  auto options = webrtc::AudioOptions();
+    const string audio_source_label, RTCAudioSource::SourceType source_type,
+    RTCAudioOptions options) {
+  auto rtc_options = webrtc::AudioOptions();
+  rtc_options.echo_cancellation = options.echo_cancellation;
+  rtc_options.auto_gain_control = options.auto_gain_control;
+  rtc_options.noise_suppression = options.noise_suppression;
+  rtc_options.highpass_filter = options.highpass_filter;
   webrtc::scoped_refptr<libwebrtc::LocalAudioSource> rtc_source_track =
-      CreateAudioSourceWithOptions(&options, source_type == RTCAudioSource::SourceType::kCustom);
+      CreateAudioSourceWithOptions(
+          &rtc_options, source_type == RTCAudioSource::SourceType::kCustom);
   scoped_refptr<RTCAudioSourceImpl> source = scoped_refptr<RTCAudioSourceImpl>(
       new RefCountedObject<RTCAudioSourceImpl>(rtc_source_track, source_type));
   return source;

src/rtc_peerconnection_factory_impl.h

@@ -47,8 +47,8 @@ class RTCPeerConnectionFactoryImpl : public RTCPeerConnectionFactory {
   scoped_refptr<RTCAudioProcessing> GetAudioProcessing() override;
 
   virtual scoped_refptr<RTCAudioSource> CreateAudioSource(
-      const string audio_source_label,
-      RTCAudioSource::SourceType source_type) override;
+      const string audio_source_label, RTCAudioSource::SourceType source_type,
+      RTCAudioOptions options) override;
 
   virtual scoped_refptr<RTCVideoSource> CreateVideoSource(
       scoped_refptr<RTCVideoCapturer> capturer, const string video_source_label,