Add VDA supported profile to GPUInfo.

content/common/gpu/media/dxva_video_decode_accelerator.cc

 // 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.
 
 #include "content/common/gpu/media/dxva_video_decode_accelerator.h"
 
 #if !defined(OS_WIN)
 #error This file should only be built on Windows.
 #endif   // !defined(OS_WIN)
 
@@ skipping 893 matching lines @@
 }
 
 bool DXVAVideoDecodeAccelerator::CanDecodeOnIOThread() {
   return false;
 }
 
 GLenum DXVAVideoDecodeAccelerator::GetSurfaceInternalFormat() const {
   return GL_BGRA_EXT;
 }
 
+// static
+std::vector<media::VideoDecodeAccelerator::SupportedProfile>
+DXVAVideoDecodeAccelerator::GetSupportedProfiles() {

[wuchengli, 2015/03/23 08:28:08]

Add a TODO to say we need to make sure the profile is really supported. Maybe
"TODO(henryhsu): refactor InitDecoder and ensure the profile is actually
supported."

[henryhsu, 2015/03/23 10:06:35]

Done.

+  // Supported media profiles should be synced with Initialize function.

[wuchengli, 2015/03/23 08:28:08]

line 537 should also use |media_profiles| array to check and you don't need this
comment.

[henryhsu, 2015/03/23 10:06:35]

Done.

+  std::vector<media::VideoCodecProfile> media_profiles({

[wuchengli, 2015/03/23 08:28:08]

Just use an array.

[henryhsu, 2015/03/23 10:06:35]

Done.

+      media::H264PROFILE_BASELINE,
+      media::H264PROFILE_MAIN,
+      media::H264PROFILE_HIGH,
+      media::VP8PROFILE_ANY,
+      media::VP9PROFILE_ANY});
+  std::vector<media::VideoDecodeAccelerator::SupportedProfile> profiles;
+  for (const auto& media_profile : media_profiles) {
+    media::VideoDecodeAccelerator::SupportedProfile profile;
+    profile.profile = media_profile;
+    // Windows Media Foundation H.264 decoding does not support decoding videos
+    // with any dimension smaller than 48 pixels:
+    // http://msdn.microsoft.com/en-us/library/windows/desktop/dd797815
+    profile.min_resolution.SetSize(48, 48);
+    // Use 1088 to account for 16x16 macroblocks.
+    profile.max_resolution.SetSize(1920, 1088);
+    profiles.push_back(profile);
+  }
+  return profiles;
+}
+
 bool DXVAVideoDecodeAccelerator::InitDecoder(media::VideoCodecProfile profile) {
   HMODULE decoder_dll = NULL;
 
   // Profile must fall within the valid range for one of the supported codecs.
   if (profile >= media::H264PROFILE_MIN && profile <= media::H264PROFILE_MAX) {
     // We mimic the steps CoCreateInstance uses to instantiate the object. This
     // was previously done because it failed inside the sandbox, and now is done
     // as a more minimal approach to avoid other side-effects CCI might have (as
     // we are still in a reduced sandbox).
     decoder_dll = ::LoadLibrary(L"msmpeg2vdec.dll");
@@ skipping 1215 matching lines @@
     D3DSURFACE_DESC surface_desc;
     hr = surface->GetDesc(&surface_desc);
     RETURN_ON_HR_FAILURE(hr, "Failed to get surface description", false);
     *width = surface_desc.Width;
     *height = surface_desc.Height;
   }
   return true;
 }
 
 }  // namespace content