Cleanup of webrtc::VideoFrame.

webrtc/modules/video_capture/video_capture_impl.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 260 matching lines @@
             target_width = abs(height);
             target_height = width;
           }
         }
 
         // TODO(mikhal): Update correct aligned stride values.
         //Calc16ByteAlignedStride(target_width, &stride_y, &stride_uv);
         // Setting absolute height (in case it was negative).
         // In Windows, the image starts bottom left, instead of top left.
         // Setting a negative source height, inverts the image (within LibYuv).
-        int ret = _captureFrame.CreateEmptyFrame(target_width,
-                                                 abs(target_height),
-                                                 stride_y,
-                                                 stride_uv, stride_uv);
-        if (ret < 0)
-        {
-            LOG(LS_ERROR) << "Failed to create empty frame, this should only "
-                             "happen due to bad parameters.";
-            return -1;
-        }
+        _captureFrame.CreateEmptyFrame(target_width,
+                                       abs(target_height),
+                                       stride_y,
+                                       stride_uv, stride_uv);
         const int conversionResult = ConvertToI420(
             commonVideoType, videoFrame, 0, 0,  // No cropping
             width, height, videoFrameLength,
             apply_rotation ? _rotateFrame : kVideoRotation_0, &_captureFrame);
         if (conversionResult < 0)
         {
           LOG(LS_ERROR) << "Failed to convert capture frame from type "
                         << frameInfo.rawType << "to I420.";
             return -1;
         }
@@ skipping 87 matching lines @@
         if (diff > 0)
         {
             return uint32_t((nrOfFrames * 1000.0f / diff) + 0.5f);
         }
     }
 
     return nrOfFrames;
 }
 }  // namespace videocapturemodule
 }  // namespace webrtc