Add distinction between RGB and RGBA native texture video frames and resources

media/base/video_frame.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_VIDEO_FRAME_H_
 #define MEDIA_BASE_VIDEO_FRAME_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 91 matching lines @@
   // argument when the VideoFrame is to be destroyed.
   // |read_pixels_cb| may be used to do (slow!) readbacks from the
   // texture to main memory.
   static scoped_refptr<VideoFrame> WrapNativeTexture(
       scoped_ptr<gpu::MailboxHolder> mailbox_holder,
       const ReleaseMailboxCB& mailbox_holder_release_cb,
       const gfx::Size& coded_size,
       const gfx::Rect& visible_rect,
       const gfx::Size& natural_size,
       base::TimeDelta timestamp,
-      bool allow_overlay);
+      bool allow_overlay,
+      bool has_alpha);
 
   // Wraps packed image data residing in a memory buffer with a VideoFrame.
   // The image data resides in |data| and is assumed to be packed tightly in a
   // buffer of logical dimensions |coded_size| with the appropriate bit depth
   // and plane count as given by |format|.  The shared memory handle of the
   // backing allocation, if present, can be passed in with |handle|.  When the
   // frame is destroyed, |no_longer_needed_cb.Run()| will be called.
   // Returns NULL on failure.
   static scoped_refptr<VideoFrame> WrapExternalPackedMemory(
       Format format,
@@ skipping 170 matching lines @@
   // associated with the frame that downstream clients might use for frame-level
   // logging, quality/performance optimizations, signaling, etc.
   //
   // TODO(miu): Move some of the "extra" members of VideoFrame (below) into
   // here as a later clean-up step.
   const VideoFrameMetadata* metadata() const { return &metadata_; }
   VideoFrameMetadata* metadata() { return &metadata_; }
 
   bool allow_overlay() const { return allow_overlay_; }
 
+  bool has_alpha() const { return has_alpha_; }
+
 #if defined(OS_POSIX)
   // Returns backing dmabuf file descriptor for given |plane|, if present.
   int dmabuf_fd(size_t plane) const;
 #endif
 
 #if defined(OS_MACOSX)
   // Returns the backing CVPixelBuffer, if present.
   CVPixelBufferRef cv_pixel_buffer() const;
 #endif
 
@@ skipping 96 matching lines @@
   base::TimeDelta timestamp_;
 
   base::Lock release_sync_point_lock_;
   uint32 release_sync_point_;
 
   const bool end_of_stream_;
 
   VideoFrameMetadata metadata_;
 
   bool allow_overlay_;
+  bool has_alpha_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(VideoFrame);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_VIDEO_FRAME_H_