CastExtension Impl for Chromoting Host

remoting/host/cast_video_capturer_adapter.cc

 // Copyright 2014 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 "remoting/host/cast_video_capturer_adapter.h"
 
 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
 
 namespace remoting {
 
 // Number of frames to be captured per second.
 const int kFramesPerSec = 10;
 
 CastVideoCapturerAdapter::CastVideoCapturerAdapter(
-    scoped_ptr<webrtc::ScreenCapturer> capturer)
-    : screen_capturer_(capturer.Pass()) {
-  DCHECK(screen_capturer_);
+    scoped_ptr<webrtc::DesktopCapturer> capturer)
+    : desktop_capturer_(capturer.Pass()) {
+  DCHECK(desktop_capturer_);
 
   thread_checker_.DetachFromThread();
 
   // Disable video adaptation since we don't intend to use it.
   set_enable_video_adapter(false);
 }
 
 CastVideoCapturerAdapter::~CastVideoCapturerAdapter() {
   DCHECK(!capture_timer_);
 }
@@ skipping 45 matching lines @@
   best_format->interval = FPS_TO_INTERVAL(kFramesPerSec);
   return true;
 }
 
 cricket::CaptureState CastVideoCapturerAdapter::Start(
     const cricket::VideoFormat& capture_format) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(!capture_timer_);
   DCHECK_EQ(capture_format.fourcc, (static_cast<uint32>(cricket::FOURCC_ARGB)));
 
-  if (!screen_capturer_) {
+  if (!desktop_capturer_) {
     VLOG(1) << "CastVideoCapturerAdapter failed to start.";
     return cricket::CS_FAILED;
   }
 
   // This is required to tell the cricket::VideoCapturer base class what the
   // capture format will be.
   SetCaptureFormat(&capture_format);
 
-  screen_capturer_->Start(this);
+  desktop_capturer_->Start(this);
 
-  // Save the Start() time of |screen_capturer_|. This will be used
+  // Save the Start() time of |desktop_capturer_|. This will be used
   // to estimate the creation time of the frame source, to set the elapsed_time
   // of future CapturedFrames in OnCaptureCompleted().
   start_time_ = base::TimeTicks::Now();
   capture_timer_.reset(new base::RepeatingTimer<CastVideoCapturerAdapter>());
   capture_timer_->Start(FROM_HERE,
                         base::TimeDelta::FromMicroseconds(
                             GetCaptureFormat()->interval /
                             (base::Time::kNanosecondsPerMicrosecond)),
                         this,
                         &CastVideoCapturerAdapter::CaptureNextFrame);
 
   return cricket::CS_RUNNING;
 }
 
 // Similar to the base class implementation with some important differences:
 // 1. Does not call either Stop() or Start(), as those would affect the state of
-// |screen_capturer_|.
+// |desktop_capturer_|.
 // 2. Does not support unpausing after stopping the capturer. It is unclear
 // if that flow needs to be supported.
 bool CastVideoCapturerAdapter::Pause(bool pause) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   if (pause) {
     if (capture_state() == cricket::CS_PAUSED)
       return true;
 
     bool running = capture_state() == cricket::CS_STARTING ||
@@ skipping 65 matching lines @@
     return false;
   fourccs->push_back(cricket::FOURCC_ARGB);
   return true;
 }
 
 void CastVideoCapturerAdapter::CaptureNextFrame() {
   // If we are paused, then don't capture.
   if (!IsRunning())
     return;
 
-  screen_capturer_->Capture(webrtc::DesktopRegion());
+  desktop_capturer_->Capture(webrtc::DesktopRegion());
 }
 
 }  // namespace remoting