Introduce struct MediaConfig, with construction-time settings.

talk/app/webrtc/mediacontroller.cc

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 24 matching lines @@
 namespace {
 
 const int kMinBandwidthBps = 30000;
 const int kStartBandwidthBps = 300000;
 const int kMaxBandwidthBps = 2000000;
 
 class MediaController : public webrtc::MediaControllerInterface,
                         public sigslot::has_slots<> {
  public:
   MediaController(rtc::Thread* worker_thread,
+                  const webrtc::MediaConfig& config,
                   cricket::ChannelManager* channel_manager)
-      : worker_thread_(worker_thread), channel_manager_(channel_manager) {
+    : worker_thread_(worker_thread),
+      config_(config),
+      channel_manager_(channel_manager) {
     RTC_DCHECK(nullptr != worker_thread);
     worker_thread_->Invoke<void>(
         rtc::Bind(&MediaController::Construct_w, this,
                   channel_manager_->media_engine()));
   }
   ~MediaController() override {
     worker_thread_->Invoke<void>(rtc::Bind(&MediaController::Destruct_w, this));
   }
 
   webrtc::Call* call_w() override {
     RTC_DCHECK(worker_thread_->IsCurrent());
     return call_.get();
   }
 
   cricket::ChannelManager* channel_manager() const override {
     return channel_manager_;
   }
+  const webrtc::MediaConfig* config() const override {
+    return &config_;
+  }
 
  private:
   void Construct_w(cricket::MediaEngineInterface* media_engine) {
     RTC_DCHECK(worker_thread_->IsCurrent());
     RTC_DCHECK(media_engine);
     webrtc::Call::Config config;
     config.audio_state = media_engine->GetAudioState();
     config.bitrate_config.min_bitrate_bps = kMinBandwidthBps;
     config.bitrate_config.start_bitrate_bps = kStartBandwidthBps;
     config.bitrate_config.max_bitrate_bps = kMaxBandwidthBps;
     call_.reset(webrtc::Call::Create(config));
   }
   void Destruct_w() {
     RTC_DCHECK(worker_thread_->IsCurrent());
     call_.reset();
   }
 
   rtc::Thread* const worker_thread_;
+  const webrtc::MediaConfig config_;
   cricket::ChannelManager* const channel_manager_;
   rtc::scoped_ptr<webrtc::Call> call_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(MediaController);
 };
 }  // namespace {
 
 namespace webrtc {
 
 MediaControllerInterface* MediaControllerInterface::Create(
     rtc::Thread* worker_thread,
+    const MediaConfig& config,
     cricket::ChannelManager* channel_manager) {
-  return new MediaController(worker_thread, channel_manager);
+  return new MediaController(worker_thread, config, channel_manager);
 }
 }  // namespace webrtc