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diff --git a/third_party/libwebrtc/test/pc/e2e/analyzer/video/analyzing_video_sinks_helper.h b/third_party/libwebrtc/test/pc/e2e/analyzer/video/analyzing_video_sinks_helper.h
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+++ b/third_party/libwebrtc/test/pc/e2e/analyzer/video/analyzing_video_sinks_helper.h
@@ -0,0 +1,73 @@
+/*
+ *  Copyright (c) 2022 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.
+ */
+
+#ifndef TEST_PC_E2E_ANALYZER_VIDEO_ANALYZING_VIDEO_SINKS_HELPER_H_
+#define TEST_PC_E2E_ANALYZER_VIDEO_ANALYZING_VIDEO_SINKS_HELPER_H_
+
+#include <list>
+#include <map>
+#include <memory>
+#include <set>
+#include <string>
+#include <utility>
+
+#include "absl/strings/string_view.h"
+#include "absl/types/optional.h"
+#include "api/test/pclf/media_configuration.h"
+#include "api/test/video/video_frame_writer.h"
+#include "rtc_base/synchronization/mutex.h"
+#include "rtc_base/thread_annotations.h"
+
+namespace webrtc {
+namespace webrtc_pc_e2e {
+
+// Registry of known video configs and video writers.
+// This class is thread safe.
+class AnalyzingVideoSinksHelper {
+ public:
+  // Adds config in the registry. If config with such stream label was
+  // registered before, the new value will override the old one.
+  void AddConfig(absl::string_view sender_peer_name, VideoConfig config);
+  absl::optional<std::pair<std::string, VideoConfig>> GetPeerAndConfig(
+      absl::string_view stream_label);
+  // Removes video config for specified stream label. If there are no know video
+  // config for such stream label - does nothing.
+  void RemoveConfig(absl::string_view stream_label);
+
+  // Takes ownership of the provided video writer. All video writers owned by
+  // this class will be closed during `AnalyzingVideoSinksHelper` destruction
+  // and guaranteed to be alive either until explicitly removed by
+  // `CloseAndRemoveVideoWriters` or until `AnalyzingVideoSinksHelper` is
+  // destroyed.
+  //
+  // Returns pointer to the added writer. Ownership is maintained by
+  // `AnalyzingVideoSinksHelper`.
+  test::VideoFrameWriter* AddVideoWriter(
+      std::unique_ptr<test::VideoFrameWriter> video_writer);
+  // For each provided `writers_to_close`, if it is known, will close and
+  // destroy it, otherwise does nothing with it.
+  void CloseAndRemoveVideoWriters(
+      std::set<test::VideoFrameWriter*> writers_to_close);
+
+  // Removes all added configs and close and removes all added writers.
+  void Clear();
+
+ private:
+  Mutex mutex_;
+  std::map<std::string, std::pair<std::string, VideoConfig>> video_configs_
+      RTC_GUARDED_BY(mutex_);
+  std::list<std::unique_ptr<test::VideoFrameWriter>> video_writers_
+      RTC_GUARDED_BY(mutex_);
+};
+
+}  // namespace webrtc_pc_e2e
+}  // namespace webrtc
+
+#endif  // TEST_PC_E2E_ANALYZER_VIDEO_ANALYZING_VIDEO_SINKS_HELPER_H_