1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/libwebrtc/video/adaptation/video_stream_encoder_resource.cc b/third_party/libwebrtc/video/adaptation/video_stream_encoder_resource.cc
new file mode 100644
index 0000000000..ad89aef52a
--- /dev/null
+++ b/third_party/libwebrtc/video/adaptation/video_stream_encoder_resource.cc
@@ -0,0 +1,63 @@
+/*
+ *  Copyright 2020 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.
+ */
+
+#include "video/adaptation/video_stream_encoder_resource.h"
+
+#include <algorithm>
+#include <utility>
+
+namespace webrtc {
+
+VideoStreamEncoderResource::VideoStreamEncoderResource(std::string name)
+    : lock_(),
+      name_(std::move(name)),
+      encoder_queue_(nullptr),
+      listener_(nullptr) {}
+
+VideoStreamEncoderResource::~VideoStreamEncoderResource() {
+  RTC_DCHECK(!listener_)
+      << "There is a listener depending on a VideoStreamEncoderResource being "
+      << "destroyed.";
+}
+
+void VideoStreamEncoderResource::RegisterEncoderTaskQueue(
+    TaskQueueBase* encoder_queue) {
+  RTC_DCHECK(!encoder_queue_);
+  RTC_DCHECK(encoder_queue);
+  encoder_queue_ = encoder_queue;
+}
+
+void VideoStreamEncoderResource::SetResourceListener(
+    ResourceListener* listener) {
+  // If you want to change listener you need to unregister the old listener by
+  // setting it to null first.
+  MutexLock crit(&lock_);
+  RTC_DCHECK(!listener_ || !listener) << "A listener is already set";
+  listener_ = listener;
+}
+
+std::string VideoStreamEncoderResource::Name() const {
+  return name_;
+}
+
+void VideoStreamEncoderResource::OnResourceUsageStateMeasured(
+    ResourceUsageState usage_state) {
+  MutexLock crit(&lock_);
+  if (listener_) {
+    listener_->OnResourceUsageStateMeasured(rtc::scoped_refptr<Resource>(this),
+                                            usage_state);
+  }
+}
+
+TaskQueueBase* VideoStreamEncoderResource::encoder_queue() const {
+  return encoder_queue_;
+}
+
+}  // namespace webrtc