V4L2VDA: use YV12 as output format if processor supports it.

media/gpu/generic_v4l2_device.cc

 // Copyright 2014 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.
 //
 
 #include "media/gpu/generic_v4l2_device.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <libdrm/drm_fourcc.h>
@@ skipping 193 matching lines @@
   }
 
   return dmabuf_fds;
 }
 
 bool GenericV4L2Device::CanCreateEGLImageFrom(uint32_t v4l2_pixfmt) {
   static uint32_t kEGLImageDrmFmtsSupported[] = {
     DRM_FORMAT_ARGB8888,
 #if defined(ARCH_CPU_ARMEL)
     DRM_FORMAT_NV12,
+    DRM_FORMAT_YVU420,
 #endif
   };
 
   return std::find(
              kEGLImageDrmFmtsSupported,
              kEGLImageDrmFmtsSupported + arraysize(kEGLImageDrmFmtsSupported),
              V4L2PixFmtToDrmFormat(v4l2_pixfmt)) !=
          kEGLImageDrmFmtsSupported + arraysize(kEGLImageDrmFmtsSupported);
 }
 
@@ skipping 91 matching lines @@
   StubPathMap paths;
   paths[kModuleV4l2].push_back(kV4l2Lib);
 
   return InitializeStubs(paths);
 #else
   return true;
 #endif
 }
 
 }  //  namespace media