add more color formats NV21 and YV12 in video capture (mainly from Android).

content/browser/renderer_host/media/video_capture_controller.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 "content/browser/renderer_host/media/video_capture_controller.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
@@ skipping 276 matching lines @@
   uint8* vplane = uplane + (frame_info_.width * frame_info_.height) / 4;
 
   // Do color conversion from the camera format to I420.
   switch (frame_info_.color) {
     case media::VideoCaptureDevice::kColorUnknown:  // Color format not set.
       break;
     case media::VideoCaptureDevice::kI420: {
       memcpy(target, data, (frame_info_.width * frame_info_.height * 3) / 2);
       break;
     }
+    case media::VideoCaptureDevice::kYV12: {
+      const uint8* ptr = data;
+      memcpy(yplane, ptr, (frame_info_.width * frame_info_.height));
+      ptr += frame_info_.width * frame_info_.height;
+      memcpy(vplane, ptr, (frame_info_.width * frame_info_.height) >> 2);
+      ptr += (frame_info_.width * frame_info_.height) >> 2;
+      memcpy(uplane, ptr, (frame_info_.width * frame_info_.height) >> 2);
+      break;
+    }
+    case media::VideoCaptureDevice::kNV21: {
+      media::ConvertNV21ToYUV(data, yplane, uplane, vplane, frame_info_.width,
+                              frame_info_.height);
+      break;
+    }
     case media::VideoCaptureDevice::kYUY2: {
       media::ConvertYUY2ToYUV(data, yplane, uplane, vplane, frame_info_.width,
                               frame_info_.height);
       break;
     }
     case media::VideoCaptureDevice::kRGB24: {
       int ystride = frame_info_.width;
       int uvstride = frame_info_.width / 2;
 #if defined(OS_WIN)  // RGB on Windows start at the bottom line.
       int rgb_stride = -3 * frame_info_.width;
@@ skipping 217 matching lines @@
 }
 
 void VideoCaptureController::DoDeviceStoppedOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   device_in_use_ = false;
   if (state_ == video_capture::kStopping) {
     PostStopping();
   }
 }