1 files changed, 53 insertions, 0 deletions
diff --git a/dom/media/webrtc/libwebrtcglue/WebrtcImageBuffer.h b/dom/media/webrtc/libwebrtcglue/WebrtcImageBuffer.h
new file mode 100644
index 0000000000..305f4df577
--- /dev/null
+++ b/dom/media/webrtc/libwebrtcglue/WebrtcImageBuffer.h
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef WebrtcImageBuffer_h__
+#define WebrtcImageBuffer_h__
+
+#include "common_video/include/video_frame_buffer.h"
+
+namespace mozilla {
+namespace layers {
+class Image;
+}
+
+class ImageBuffer : public webrtc::VideoFrameBuffer {
+ public:
+  explicit ImageBuffer(RefPtr<layers::Image>&& aImage)
+      : mImage(std::move(aImage)) {}
+
+  rtc::scoped_refptr<webrtc::I420BufferInterface> ToI420() override {
+    RefPtr<layers::PlanarYCbCrImage> image = mImage->AsPlanarYCbCrImage();
+    MOZ_ASSERT(image);
+    if (!image) {
+      // TODO. YUV420 ReadBack, Image only provides a RGB readback.
+      return nullptr;
+    }
+    const layers::PlanarYCbCrData* data = image->GetData();
+    rtc::scoped_refptr<webrtc::I420BufferInterface> buf =
+        webrtc::WrapI420Buffer(
+            data->mPictureRect.width, data->mPictureRect.height,
+            data->mYChannel, data->mYStride, data->mCbChannel,
+            data->mCbCrStride, data->mCrChannel, data->mCbCrStride,
+            [image] { /* keep reference alive*/ });
+    return buf;
+  }
+
+  Type type() const override { return Type::kNative; }
+
+  int width() const override { return mImage->GetSize().width; }
+
+  int height() const override { return mImage->GetSize().height; }
+
+  RefPtr<layers::Image> GetNativeImage() const { return mImage; }
+
+ private:
+  const RefPtr<layers::Image> mImage;
+};
+
+}  // namespace mozilla
+
+#endif  // WebrtcImageBuffer_h__