Win Video Capture: add UYVY pixel format to Cr sink filter pin capabilities

media/capture/video/win/sink_input_pin_win.cc

Index: media/capture/video/win/sink_input_pin_win.cc
diff --git a/media/capture/video/win/sink_input_pin_win.cc b/media/capture/video/win/sink_input_pin_win.cc
index 9c515a3422e722790a7cfc051d8ff9150e91bdaf..23c35da80d6f32c8f0900befd44ad48e235405f6 100644
--- a/media/capture/video/win/sink_input_pin_win.cc
+++ b/media/capture/video/win/sink_input_pin_win.cc
@@ -41,16 +41,16 @@ const VideoCaptureFormat& SinkInputPin::ResultingFormat() {
 }
 
 bool SinkInputPin::IsMediaTypeValid(const AM_MEDIA_TYPE* media_type) {
-  GUID type = media_type->majortype;
+  const GUID type = media_type->majortype;
   if (type != MEDIATYPE_Video)
     return false;
 
-  GUID format_type = media_type->formattype;
+  const GUID format_type = media_type->formattype;
   if (format_type != FORMAT_VideoInfo)
     return false;
 
   // Check for the sub types we support.
-  GUID sub_type = media_type->subtype;
+  const GUID sub_type = media_type->subtype;
   VIDEOINFOHEADER* pvi =
       reinterpret_cast<VIDEOINFOHEADER*>(media_type->pbFormat);
   if (pvi == NULL)
@@ -75,6 +75,12 @@ bool SinkInputPin::IsMediaTypeValid(const AM_MEDIA_TYPE* media_type) {
     resulting_format_.pixel_format = PIXEL_FORMAT_YUY2;
     return true;
   }
+  // This format is added after http:/crbug.com/508413.
+  if (sub_type == MEDIASUBTYPE_UYVY &&
+      pvi->bmiHeader.biCompression == MAKEFOURCC('U', 'Y', 'V', 'Y')) {
+    resulting_format_.pixel_format = PIXEL_FORMAT_UYVY;
+    return true;
+  }
   if (sub_type == MEDIASUBTYPE_MJPG &&
       pvi->bmiHeader.biCompression == MAKEFOURCC('M', 'J', 'P', 'G')) {
     resulting_format_.pixel_format = PIXEL_FORMAT_MJPEG;
@@ -90,6 +96,12 @@ bool SinkInputPin::IsMediaTypeValid(const AM_MEDIA_TYPE* media_type) {
     resulting_format_.pixel_format = PIXEL_FORMAT_RGB32;
     return true;
   }
+
+#ifndef NDEBUG
+  WCHAR guid_str[128];
+  StringFromGUID2(sub_type, guid_str, arraysize(guid_str));
+  DVLOG(2) << __FUNCTION__ << " unsupported media type: " << guid_str;
+#endif
   return false;
 }
 
@@ -97,7 +109,7 @@ bool SinkInputPin::GetValidMediaType(int index, AM_MEDIA_TYPE* media_type) {
   if (media_type->cbFormat < sizeof(VIDEOINFOHEADER))
     return false;
 
-  VIDEOINFOHEADER* pvi =
+  VIDEOINFOHEADER* const pvi =
       reinterpret_cast<VIDEOINFOHEADER*>(media_type->pbFormat);
 
   ZeroMemory(pvi, sizeof(VIDEOINFOHEADER));
@@ -105,9 +117,8 @@ bool SinkInputPin::GetValidMediaType(int index, AM_MEDIA_TYPE* media_type) {
   pvi->bmiHeader.biPlanes = 1;
   pvi->bmiHeader.biClrImportant = 0;
   pvi->bmiHeader.biClrUsed = 0;
-  if (requested_frame_rate_ > 0) {
+  if (requested_frame_rate_ > 0)
     pvi->AvgTimePerFrame = kSecondsToReferenceTime / requested_frame_rate_;
-  }
 
   media_type->majortype = MEDIATYPE_Video;
   media_type->formattype = FORMAT_VideoInfo;
@@ -144,6 +155,15 @@ bool SinkInputPin::GetValidMediaType(int index, AM_MEDIA_TYPE* media_type) {
       break;
     }
     case 2: {
+      pvi->bmiHeader.biCompression = MAKEFOURCC('U', 'Y', 'V', 'Y');
+      pvi->bmiHeader.biBitCount = 16;
+      pvi->bmiHeader.biWidth = requested_info_header_.biWidth;
+      pvi->bmiHeader.biHeight = requested_info_header_.biHeight;
+      pvi->bmiHeader.biSizeImage = GetArea(requested_info_header_) * 2;
+      media_type->subtype = MEDIASUBTYPE_UYVY;
+      break;
+    }
+    case 3: {
       pvi->bmiHeader.biCompression = BI_RGB;
       pvi->bmiHeader.biBitCount = 24;
       pvi->bmiHeader.biWidth = requested_info_header_.biWidth;
@@ -152,7 +172,7 @@ bool SinkInputPin::GetValidMediaType(int index, AM_MEDIA_TYPE* media_type) {
       media_type->subtype = MEDIASUBTYPE_RGB24;
       break;
     }
-    case 3: {
+    case 4: {
       pvi->bmiHeader.biCompression = BI_RGB;
       pvi->bmiHeader.biBitCount = 32;
       pvi->bmiHeader.biWidth = requested_info_header_.biWidth;