Support for YUV 4:4:4 subsampling.

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 39 matching lines @@
     YV12 = 1,  // 12bpp YVU planar 1x1 Y, 2x2 VU samples
     YV16 = 2,  // 16bpp YVU planar 1x1 Y, 2x1 VU samples
     I420 = 3,  // 12bpp YVU planar 1x1 Y, 2x2 UV samples.
     YV12A = 4,  // 20bpp YUVA planar 1x1 Y, 2x2 VU, 1x1 A samples.
 #if defined(VIDEO_HOLE)
     HOLE = 5,  // Hole frame.
 #endif  // defined(VIDEO_HOLE)
     NATIVE_TEXTURE = 6,  // Native texture.  Pixel-format agnostic.
     YV12J = 7,  // JPEG color range version of YV12
     NV12 = 8,  // 12bpp 1x1 Y plane followed by an interleaved 2x2 UV plane.
-    FORMAT_MAX = NV12,  // Must always be equal to largest entry logged.
+    I444 = 9,  // 24bpp YUV planer, no subsampling.

[scherkus (not reviewing), 2014/05/22 23:45:11]

s/planer/planar/

it seems like we have I420 to represent U-V ordered planar data, which means
this should be YV24 to be consistent with our other V-U enums

[sandersd (OOO until July 31), 2014/05/23 00:45:22]

Works for me. (Although I did't find a code path where I420 and YV12 are handled
differently.)

+    FORMAT_MAX = I444,  // Must always be equal to largest entry logged.
   };
 
   // Returns the name of a Format as a string.
   static std::string FormatToString(Format format);
 
   // Creates a new frame in system memory with given parameters. Buffers for
   // the frame are allocated but not initialized.
   static scoped_refptr<VideoFrame> CreateFrame(
       Format format,
       const gfx::Size& coded_size,
@@ skipping 259 matching lines @@
   std::vector<uint32> release_sync_points_;
 
   const bool end_of_stream_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(VideoFrame);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_VIDEO_FRAME_H_