1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/cropped_desktop_frame.h b/third_party/libwebrtc/modules/desktop_capture/cropped_desktop_frame.h
new file mode 100644
index 0000000000..5c672c7d32
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+++ b/third_party/libwebrtc/modules/desktop_capture/cropped_desktop_frame.h
@@ -0,0 +1,33 @@
+/*
+ *  Copyright (c) 2014 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_DESKTOP_CAPTURE_CROPPED_DESKTOP_FRAME_H_
+#define MODULES_DESKTOP_CAPTURE_CROPPED_DESKTOP_FRAME_H_
+
+#include <memory>
+
+#include "modules/desktop_capture/desktop_frame.h"
+#include "modules/desktop_capture/desktop_geometry.h"
+#include "rtc_base/system/rtc_export.h"
+
+namespace webrtc {
+
+// Creates a DesktopFrame to contain only the area of `rect` in the original
+// `frame`.
+// `frame` should not be nullptr. `rect` is in `frame` coordinate, i.e.
+// `frame`->top_left() does not impact the area of `rect`.
+// Returns nullptr frame if `rect` is not contained by the bounds of `frame`.
+std::unique_ptr<DesktopFrame> RTC_EXPORT
+CreateCroppedDesktopFrame(std::unique_ptr<DesktopFrame> frame,
+                          const DesktopRect& rect);
+
+}  // namespace webrtc
+
+#endif  // MODULES_DESKTOP_CAPTURE_CROPPED_DESKTOP_FRAME_H_