16 bpp video stream capture, render and createImageBitmap(video) using (CPU) shared memory buffers

media/capture/video/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/capture/video/win/video_capture_device_factory_win.h"
 
 #include <mfapi.h>
 #include <mferror.h>
 #include <stddef.h>
 
@@ skipping 362 matching lines @@
 
     GUID type_guid;
     hr = type->GetGUID(MF_MT_SUBTYPE, &type_guid);
     if (FAILED(hr)) {
       DLOG(ERROR) << "GetGUID failed: " << logging::SystemErrorCodeToString(hr);
       return;
     }
     VideoCaptureDeviceMFWin::FormatFromGuid(type_guid,
                                             &capture_format.pixel_format);
     type.Release();
+    ++stream_index;
+    if (capture_format.pixel_format == PIXEL_FORMAT_UNKNOWN)
+      continue;
     formats->push_back(capture_format);
-    ++stream_index;
 
     DVLOG(1) << descriptor.display_name << " "
              << VideoCaptureFormat::ToString(capture_format);
   }
 }
 
 // Returns true iff the current platform supports the Media Foundation API
 // and that the DLLs are available.  On Vista this API is an optional download
 // but the API is advertised as a part of Windows 7 and onwards.  However,
 // we've seen that the required DLLs are not available in some Win7
@@ skipping 62 matching lines @@
 }
 
 // static
 VideoCaptureDeviceFactory*
 VideoCaptureDeviceFactory::CreateVideoCaptureDeviceFactory(
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
   return new VideoCaptureDeviceFactoryWin();
 }
 
 }  // namespace media