1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/rtp_frame_id_only_ref_finder.h b/third_party/libwebrtc/modules/video_coding/rtp_frame_id_only_ref_finder.h
new file mode 100644
index 0000000000..c842fb5011
--- /dev/null
+++ b/third_party/libwebrtc/modules/video_coding/rtp_frame_id_only_ref_finder.h
@@ -0,0 +1,38 @@
+/*
+ *  Copyright (c) 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.
+ */
+
+#ifndef MODULES_VIDEO_CODING_RTP_FRAME_ID_ONLY_REF_FINDER_H_
+#define MODULES_VIDEO_CODING_RTP_FRAME_ID_ONLY_REF_FINDER_H_
+
+#include <memory>
+
+#include "absl/container/inlined_vector.h"
+#include "modules/rtp_rtcp/source/frame_object.h"
+#include "modules/video_coding/rtp_frame_reference_finder.h"
+#include "rtc_base/numerics/sequence_number_unwrapper.h"
+
+namespace webrtc {
+
+class RtpFrameIdOnlyRefFinder {
+ public:
+  RtpFrameIdOnlyRefFinder() = default;
+
+  RtpFrameReferenceFinder::ReturnVector ManageFrame(
+      std::unique_ptr<RtpFrameObject> frame,
+      int frame_id);
+
+ private:
+  static constexpr int kFrameIdLength = 1 << 15;
+  SeqNumUnwrapper<uint16_t, kFrameIdLength> unwrapper_;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_VIDEO_CODING_RTP_FRAME_ID_ONLY_REF_FINDER_H_