Support multiple video decoders and encoders

content/common/gpu/media/v4l2_video_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 <linux/videodev2.h>
 
 #include "base/numerics/safe_conversions.h"
 #include "content/common/gpu/media/generic_v4l2_video_device.h"
+#if defined(ARCH_CPU_ARMEL)
 #include "content/common/gpu/media/tegra_v4l2_video_device.h"
+#endif
 
 namespace content {
 
 V4L2Device::~V4L2Device() {}
 
 // static
 scoped_ptr<V4L2Device> V4L2Device::Create(Type type) {
   DVLOG(3) << __PRETTY_FUNCTION__;
 
   scoped_ptr<GenericV4L2Device> generic_device(new GenericV4L2Device(type));
   if (generic_device->Initialize())
     return generic_device.Pass();
 
+#if defined(ARCH_CPU_ARMEL)
   scoped_ptr<TegraV4L2Device> tegra_device(new TegraV4L2Device(type));
   if (tegra_device->Initialize())
     return tegra_device.Pass();
+#endif
 
   LOG(ERROR) << "Failed to create V4L2Device";
   return scoped_ptr<V4L2Device>();
 }
 
 // static
 media::VideoFrame::Format V4L2Device::V4L2PixFmtToVideoFrameFormat(
     uint32 pix_fmt) {
   switch (pix_fmt) {
     case V4L2_PIX_FMT_NV12:
@@ skipping 98 matching lines @@
       DCHECK_EQ(format.fmt.pix_mp.plane_fmt[i].bytesperline,
                 base::checked_cast<__u32>(media::VideoFrame::RowBytes(
                     i, frame_format, coded_size.width())));
     }
   }
 
   return coded_size;
 }
 
 }  //  namespace content