Reland:Refactored pixel format resize operations in media/video/capture into a function called Vide…

media/video/capture/win/sink_input_pin_win.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 "media/video/capture/win/sink_input_pin_win.h"
 
 #include <cstring>
 
 // Avoid including strsafe.h via dshow as it will cause build warnings.
 #define NO_DSHOW_STRSAFE
@@ skipping 50 matching lines @@
     pvi->bmiHeader = requested_info_header_;
     return true;
   }
 
   switch (index) {
     case 0: {
       pvi->bmiHeader.biCompression = MAKEFOURCC('I', '4', '2', '0');
       pvi->bmiHeader.biBitCount = 12;  // bit per pixel
       pvi->bmiHeader.biWidth = requested_info_header_.biWidth;
       pvi->bmiHeader.biHeight = requested_info_header_.biHeight;
-      pvi->bmiHeader.biSizeImage =
-        GetArea(requested_info_header_) * 3 / 2;
+      pvi->bmiHeader.biSizeImage = GetArea(requested_info_header_) * 3 / 2;
       media_type->subtype = kMediaSubTypeI420;
       break;
     }
     case 1: {
       pvi->bmiHeader.biCompression = MAKEFOURCC('Y', 'U', 'Y', '2');
       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_YUY2;
@@ skipping 61 matching lines @@
       pvi->bmiHeader.biCompression == BI_RGB) {
     resulting_format_.pixel_format = PIXEL_FORMAT_RGB24;
     return true;  // This format is acceptable.
   }
   return false;
 }
 
 HRESULT SinkInputPin::Receive(IMediaSample* sample) {
   const int length = sample->GetActualDataLength();
   uint8* buffer = NULL;
+
+  if (length <= 0) {
+    DLOG(WARNING) << "Media sample length is 0 or less.";
+    return S_FALSE;
+  }
+
   if (FAILED(sample->GetPointer(&buffer)))
     return S_FALSE;
 
   observer_->FrameReceived(buffer, length);
   return S_OK;
 }
 
 void SinkInputPin::SetRequestedMediaFormat(
     VideoPixelFormat pixel_format,
     float frame_rate,
     const BITMAPINFOHEADER& info_header) {
   requested_pixel_format_ = pixel_format;
   requested_frame_rate_ = frame_rate;
   requested_info_header_ = info_header;
   resulting_format_.frame_size.SetSize(0, 0);
   resulting_format_.frame_rate = 0;
   resulting_format_.pixel_format = PIXEL_FORMAT_UNKNOWN;
 }
 
 const VideoCaptureFormat& SinkInputPin::ResultingFormat() {
   return resulting_format_;
 }
 
 }  // namespace media