[EXPERIMENTAL] Generic stereo codec with index header sending single frames

common_video/include/video_frame_buffer.h

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 38 matching lines @@
   const int height_;
   const uint8_t* const y_plane_;
   const uint8_t* const u_plane_;
   const uint8_t* const v_plane_;
   const int y_stride_;
   const int u_stride_;
   const int v_stride_;
   rtc::Callback0<void> no_longer_used_cb_;
 };
 
+class WrappedI420ABuffer : public I420BufferInterface {
+ public:
+  WrappedI420ABuffer(rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer,
+                     const uint8_t* a_plane,
+                     int a_stride,
+                     const rtc::Callback0<void>& alpha_no_longer_used_cb);
+  int width() const override;
+  int height() const override;
+
+  const uint8_t* DataY() const override;
+  const uint8_t* DataU() const override;
+  const uint8_t* DataV() const override;
+  const uint8_t* DataA() const override;
+  int StrideY() const override;
+  int StrideU() const override;
+  int StrideV() const override;
+  int StrideA() const override;
+
+ private:
+  friend class rtc::RefCountedObject<WrappedI420ABuffer>;
+  ~WrappedI420ABuffer() override;
+
+  rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer_;
+  rtc::scoped_refptr<webrtc::I420BufferInterface> i420_buffer_;
+  const uint8_t* const a_plane_;
+  const int a_stride_;
+  rtc::Callback0<void> alpha_no_longer_used_cb_;
+};
+
 rtc::scoped_refptr<I420BufferInterface> WrapI420Buffer(
     int width,
     int height,
     const uint8_t* y_plane,
     int y_stride,
     const uint8_t* u_plane,
     int u_stride,
     const uint8_t* v_plane,
     int v_stride,
     const rtc::Callback0<void>& no_longer_used);
@@ skipping 17 matching lines @@
     int y_stride,
     const uint8_t* u_plane,
     int u_stride,
     const uint8_t* v_plane,
     int v_stride,
     const rtc::Callback0<void>& no_longer_used);
 
 }  // namespace webrtc
 
 #endif  // COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_