Win video capture: Fix capture format and frame buffer mismatch

media/capture/video/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/capture/video/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 173 matching lines @@
       return false;
   }
 
   media_type->bFixedSizeSamples = TRUE;
   media_type->lSampleSize = pvi->bmiHeader.biSizeImage;
   return true;
 }
 
 HRESULT SinkInputPin::Receive(IMediaSample* sample) {
   const int length = sample->GetActualDataLength();
   uint8_t* buffer = NULL;

[mcasas, 2016/10/03 17:32:32]

nit: move this to l. 202 and s/NULL/nullptr/

 
-  if (length <= 0) {
-    DLOG(WARNING) << "Media sample length is 0 or less.";
+  if (length <= 0 ||
+      static_cast<size_t>(length) < resulting_format_.ImageAllocationSize()) {
+    DLOG(WARNING) << "Wrong media sample length: " << length;
     return S_FALSE;
   }
 
   if (FAILED(sample->GetPointer(&buffer)))
     return S_FALSE;
 
   REFERENCE_TIME start_time, end_time;
   base::TimeDelta timestamp = media::kNoTimestamp;
   if (SUCCEEDED(sample->GetTime(&start_time, &end_time))) {
     DCHECK(start_time <= end_time);
     timestamp = base::TimeDelta::FromMicroseconds(start_time / 10);
   }
 
-  observer_->FrameReceived(buffer, length, timestamp);
+  observer_->FrameReceived(buffer, length, resulting_format_, timestamp);
   return S_OK;
 }
 
 SinkInputPin::~SinkInputPin() {
 }
 
 }  // namespace media