Add a ChromeOS implementation of VideoCaptureDevice

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 <map>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 130 matching lines @@
 
   // The pool of shared-memory buffers used for capturing.
   const scoped_refptr<VideoCaptureBufferPool> buffer_pool_;
 
   bool first_frame_;
 };
 
 VideoCaptureController::VideoCaptureController()
     : buffer_pool_(new VideoCaptureBufferPool(kNoOfBuffers)),
       state_(VIDEO_CAPTURE_STATE_STARTED),
+      display_rotation_(gfx::Display::ROTATE_0),
       weak_ptr_factory_(this) {
 }
 
 VideoCaptureController::VideoCaptureDeviceClient::VideoCaptureDeviceClient(
     const base::WeakPtr<VideoCaptureController>& controller,
     const scoped_refptr<VideoCaptureBufferPool>& buffer_pool)
     : controller_(controller), buffer_pool_(buffer_pool), first_frame_(true) {}
 
 VideoCaptureController::VideoCaptureDeviceClient::~VideoCaptureDeviceClient() {}
 
@@ skipping 125 matching lines @@
 }
 
 void VideoCaptureController::VideoCaptureDeviceClient::OnIncomingCapturedData(
     const uint8* data,
     int length,
     const VideoCaptureFormat& frame_format,
     int rotation,
     base::TimeTicks timestamp) {
   TRACE_EVENT0("video", "VideoCaptureController::OnIncomingCapturedData");
 
+  if (controller_) {
+    switch (controller_->display_rotation()) {
+      case gfx::Display::ROTATE_0:
+        break;
+      case gfx::Display::ROTATE_90:
+        rotation = (rotation + 90) % 360;
+        break;
+      case gfx::Display::ROTATE_180:
+        rotation = (rotation + 180) % 360;
+        break;
+      case gfx::Display::ROTATE_270:
+        rotation = (rotation + 270) % 360;
+        break;
+    }
+  }
   if (!frame_format.IsValid())
     return;
 
   // Chopped pixels in width/height in case video capture device has odd
   // numbers for width/height.
   int chopped_width = 0;
   int chopped_height = 0;
   int new_unrotated_width = frame_format.frame_size.width();
   int new_unrotated_height = frame_format.frame_size.height();
 
@@ skipping 329 matching lines @@
   }
   return NULL;
 }
 
 int VideoCaptureController::GetClientCount() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return controller_clients_.size();
 }
 
 }  // namespace content