libvpx: Pull from upstream

source/libvpx/vpxenc.h

 /*
  *  Copyright (c) 2013 The WebM 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 VPXENC_H_
 #define VPXENC_H_
 
 #include "vpx/vpx_encoder.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 enum TestDecodeFatality {
   TEST_DECODE_OFF,
   TEST_DECODE_FATAL,
   TEST_DECODE_WARN,
 };
 
 typedef enum {
   I420,  // 4:2:0 8+ bit-depth
   I422,  // 4:2:2 8+ bit-depth
   I444,  // 4:4:4 8+ bit-depth
+  I440,  // 4:4:0 8+ bit-depth
   YV12,  // 4:2:0 with uv flipped, only 8-bit depth
 } ColorInputType;
 
 struct VpxInterface;
 
 /* Configuration elements common to all streams. */
 struct VpxEncoderConfig {
   const struct VpxInterface *codec;
   int passes;
   int pass;
@@ skipping 15 matching lines @@
   int disable_warnings;
   int disable_warning_prompt;
   int experimental_bitstream;
 };
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VPXENC_H_