MediaController/Call instantiation.

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,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/app/webrtc/mediacontroller.h"
+
+#include "talk/media/base/mediaengine.h"
+#include "talk/media/webrtc/webrtcvideoengine2.h"
+#include "talk/session/media/channel.h"
+#include "webrtc/base/bind.h"
+#include "webrtc/base/checks.h"
+
+namespace webrtc {
+
+const int kMinBandwidthBps = 30000;
+const int kStartBandwidthBps = 300000;
+const int kMaxBandwidthBps = 2000000;
+
+MediaController::MediaController(rtc::Thread* worker_thread,
+                                 webrtc::VoiceEngine* voice_engine)
+    : worker_thread_(worker_thread), video_channel_(nullptr) {
+  DCHECK(nullptr != worker_thread);
+  worker_thread_->Invoke<void>(
+      rtc::Bind(&MediaController::Construct_w, this, voice_engine));
+}
+
+MediaController::~MediaController() {
+  worker_thread_->Invoke<void>(rtc::Bind(&MediaController::Destruct_w, this));
+}
+
+void MediaController::set_video_channel(cricket::VideoChannel* video_channel) {
+  rtc::CritScope cs(&critical_section_);
+  video_channel_ = video_channel;
+}
+
+void MediaController::OnLoadUpdate(Load load) {
+  rtc::CritScope cs(&critical_section_);
+  if (video_channel_) {
+    cricket::VideoMediaChannel* mch = video_channel_->media_channel();
+    static_cast<cricket::WebRtcVideoChannel2*>(mch)->OnLoadUpdate(load);
+  }
+}
+
+void MediaController::Construct_w(webrtc::VoiceEngine* voice_engine) {
+  DCHECK(worker_thread_->IsCurrent());
+  webrtc::Call::Config config;
+  config.overuse_callback = this;
+  config.voice_engine = voice_engine;
+  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 MediaController::Destruct_w() {
+  DCHECK(worker_thread_->IsCurrent());
+  call_.reset(nullptr);
+}
+}  // namespace webrtc