Change Mac Video Capture format change ARGB->YUY2

media/video/capture/mac/video_capture_device_qtkit_mac.mm

 // 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.
 
 #import "media/video/capture/mac/video_capture_device_qtkit_mac.h"
 
 #import <QTKit/QTKit.h>
 
 #include "base/debug/crash_logging.h"
 #include "base/logging.h"
@@ skipping 153 matching lines @@
   frameHeight_ = height;
   frameRate_ = frameRate;
 
   // Set up desired output properties.
   NSDictionary *captureDictionary =
       [NSDictionary dictionaryWithObjectsAndKeys:
           [NSNumber numberWithDouble:frameWidth_],
           (id)kCVPixelBufferWidthKey,
           [NSNumber numberWithDouble:frameHeight_],
           (id)kCVPixelBufferHeightKey,
-          [NSNumber numberWithUnsignedInt:kCVPixelFormatType_32BGRA],
+          [NSNumber numberWithUnsignedInt:kCVPixelFormatType_422YpCbCr8],
           (id)kCVPixelBufferPixelFormatTypeKey,
           nil];
   [[[captureSession_ outputs] objectAtIndex:0]
       setPixelBufferAttributes:captureDictionary];
 
   [[[captureSession_ outputs] objectAtIndex:0]
       setMinimumVideoFrameInterval:(NSTimeInterval)1/(float)frameRate];
   return YES;
 }
 
@@ skipping 74 matching lines @@
                expectedBytesPerRow);
       }
 
       addressToPass = adjustedAddress;
       frameSize = frameHeight * expectedBytesPerRow;
     }
     media::VideoCaptureCapability captureCapability;
     captureCapability.width = frameWidth_;
     captureCapability.height = frameHeight_;
     captureCapability.frame_rate = frameRate_;
-    captureCapability.color = media::PIXEL_FORMAT_ARGB;
+    captureCapability.color = media::PIXEL_FORMAT_UYVY;
     captureCapability.expected_capture_delay = 0;
     captureCapability.interlaced = false;
 
     // Deliver the captured video frame.
     frameReceiver_->ReceiveFrame(addressToPass, frameSize, captureCapability);
 
     CVPixelBufferUnlockBaseAddress(videoFrame, kLockFlags);
   }
   [lock_ unlock];
 }
 
 - (void)handleNotification:(NSNotification *)errorNotification {
   NSError * error = (NSError *)[[errorNotification userInfo]
       objectForKey:QTCaptureSessionErrorKey];
   frameReceiver_->ReceiveError([[error localizedDescription] UTF8String]);
 }
 
 @end