1 files changed, 34 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/pc/e2e/analyzer/video/simulcast_dummy_buffer_helper.h b/third_party/libwebrtc/test/pc/e2e/analyzer/video/simulcast_dummy_buffer_helper.h
new file mode 100644
index 0000000000..8ecfae7385
--- /dev/null
+++ b/third_party/libwebrtc/test/pc/e2e/analyzer/video/simulcast_dummy_buffer_helper.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2019 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_SIMULCAST_DUMMY_BUFFER_HELPER_H_
+#define TEST_PC_E2E_ANALYZER_VIDEO_SIMULCAST_DUMMY_BUFFER_HELPER_H_
+
+#include "api/video/video_frame.h"
+#include "api/video/video_frame_buffer.h"
+
+namespace webrtc {
+namespace webrtc_pc_e2e {
+
+// Creates a special video frame buffer that should be used to create frames
+// during Selective Forwarding Unit (SFU) emulation. Such frames are used when
+// original was discarded and some frame is required to be passed upstream
+// to make WebRTC pipeline happy and not request key frame on the received
+// stream due to lack of incoming frames.
+rtc::scoped_refptr<webrtc::VideoFrameBuffer> CreateDummyFrameBuffer();
+
+// Tests if provided frame contains a buffer created by
+// `CreateDummyFrameBuffer`.
+bool IsDummyFrame(const webrtc::VideoFrame& video_frame);
+
+}  // namespace webrtc_pc_e2e
+}  // namespace webrtc
+
+#endif  // TEST_PC_E2E_ANALYZER_VIDEO_SIMULCAST_DUMMY_BUFFER_HELPER_H_