Win Video Capture: Add support for HDYC pixel format.

media/video/capture/win/video_capture_device_factory_win.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/video/capture/win/video_capture_device_factory_win.h"
 
 #include <mfapi.h>
 #include <mferror.h>
 
 #include "base/command_line.h"
@@ skipping 201 matching lines @@
   int index = 0;
   ScopedVariant device_id;
   while (enum_moniker->Next(1, moniker.Receive(), NULL) == S_OK) {
     ScopedComPtr<IPropertyBag> prop_bag;
     hr = moniker->BindToStorage(0, 0, IID_IPropertyBag, prop_bag.ReceiveVoid());
     if (FAILED(hr)) {
       moniker.Release();
       continue;
     }
 
+    std::string id;
     device_id.Reset();
     hr = prop_bag->Read(L"DevicePath", device_id.Receive(), 0);
-    if (FAILED(hr)) {
-      DVLOG(1) << "Couldn't read a device's DevicePath.";
-      return;
+    if (FAILED(hr) || device_id.type() != VT_BSTR) {
+      // If there is no clear DevicePath, try with Description and FriendlyName.
+      ScopedVariant name;
+      if (SUCCEEDED(prop_bag->Read(L"Description", name.Receive(), 0)) ||
+          SUCCEEDED(prop_bag->Read(L"FriendlyName", name.Receive(), 0))) {
+        id = base::SysWideToUTF8(V_BSTR(&name));
+      }
+    } else {
+      DCHECK_EQ(device_id.type(), VT_BSTR);
+      id = base::SysWideToUTF8(V_BSTR(&device_id));
     }
-    if (device.id() == base::SysWideToUTF8(V_BSTR(&device_id)))
+
+    if (device.id() == id)
       break;
     moniker.Release();
   }
 
   if (moniker.get()) {
     base::win::ScopedComPtr<IBaseFilter> capture_filter;
     hr = VideoCaptureDeviceWin::GetDeviceFilter(device,
                                                 capture_filter.Receive());
     if (!capture_filter) {
       DVLOG(2) << "Failed to create capture filter.";
@@ skipping 188 matching lines @@
     const VideoCaptureDevice::Name& device,
     VideoCaptureFormats* formats) {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (use_media_foundation_)
     GetDeviceSupportedFormatsMediaFoundation(device, formats);
   else
     GetDeviceSupportedFormatsDirectShow(device, formats);
 }
 
 }  // namespace media