Switch event type when a capture device has been stopped from the render process. This make sure th…

content/renderer/media/rtc_video_capture_delegate.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/renderer/media/rtc_video_capture_delegate.h"
 
 #include "base/bind.h"
 
 namespace content {
 
 RtcVideoCaptureDelegate::RtcVideoCaptureDelegate(
     const media::VideoCaptureSessionId id,
     VideoCaptureImplManager* vc_manager)
     : session_id_(id),
       vc_manager_(vc_manager),
       capture_engine_(NULL),
-      got_first_frame_(false) {
+      got_first_frame_(false),
+      error_occured_(false) {
   DVLOG(3) << " RtcVideoCaptureDelegate::ctor";
   capture_engine_ = vc_manager_->AddDevice(session_id_, this);
 }
 
 RtcVideoCaptureDelegate::~RtcVideoCaptureDelegate() {
   DVLOG(3) << " RtcVideoCaptureDelegate::dtor";
   vc_manager_->RemoveDevice(session_id_, this);
 }
 
 void RtcVideoCaptureDelegate::StartCapture(
     const media::VideoCaptureCapability& capability,
     const FrameCapturedCallback& captured_callback,
     const StateChangeCallback& state_callback) {
   DVLOG(3) << " RtcVideoCaptureDelegate::StartCapture ";
   message_loop_proxy_ = base::MessageLoopProxy::current();
   captured_callback_ = captured_callback;
   state_callback_ = state_callback;
+  got_first_frame_ = false;
+  error_occured_ = false;
 
   // Increase the reference count to ensure we are not deleted until
   // The we are unregistered in RtcVideoCaptureDelegate::OnRemoved.
   AddRef();
   capture_engine_->StartCapture(this, capability);
 }
 
 void RtcVideoCaptureDelegate::StopCapture() {
   // Immediately make sure we don't provide more frames.
   captured_callback_.Reset();
   state_callback_.Reset();
   capture_engine_->StopCapture(this);
 }
 
 void RtcVideoCaptureDelegate::OnStarted(media::VideoCapture* capture) {
   DVLOG(3) << " RtcVideoCaptureDelegate::OnStarted";
 }
 
 void RtcVideoCaptureDelegate::OnStopped(media::VideoCapture* capture) {
 }
 
 void RtcVideoCaptureDelegate::OnPaused(media::VideoCapture* capture) {
   NOTIMPLEMENTED();
 }
 
 void RtcVideoCaptureDelegate::OnError(media::VideoCapture* capture,
                                       int error_code) {
+  DVLOG(3) << " RtcVideoCaptureDelegate::OnError";
   message_loop_proxy_->PostTask(
       FROM_HERE,
       base::Bind(&RtcVideoCaptureDelegate::OnErrorOnCaptureThread,
-                 this, capture, error_code));
+                 this, capture));
 }
 
 void RtcVideoCaptureDelegate::OnRemoved(media::VideoCapture* capture) {
   DVLOG(3) << " RtcVideoCaptureDelegate::OnRemoved";
+  message_loop_proxy_->PostTask(
+      FROM_HERE,
+      base::Bind(&RtcVideoCaptureDelegate::OnRemovedOnCaptureThread,
+                 this, capture));
+
   // Balance the AddRef in StartCapture.
   // This means we are no longer registered as an event handler and can safely
   // be deleted.
   Release();
 }
 
 void RtcVideoCaptureDelegate::OnBufferReady(
     media::VideoCapture* capture,
     scoped_refptr<media::VideoCapture::VideoFrameBuffer> buf) {
   message_loop_proxy_->PostTask(
@@ skipping 17 matching lines @@
       if (!state_callback_.is_null())
         state_callback_.Run(CAPTURE_RUNNING);
     }
 
     captured_callback_.Run(*buf);
   }
   capture->FeedBuffer(buf);
 }
 
 void RtcVideoCaptureDelegate::OnErrorOnCaptureThread(
-    media::VideoCapture* capture, int error_code) {
+    media::VideoCapture* capture) {
+  error_occured_ = true;
   if (!state_callback_.is_null())
-    state_callback_.Run(got_first_frame_ ? CAPTURE_STOPPED : CAPTURE_FAILED);
+    state_callback_.Run(CAPTURE_FAILED);
+}
+
+
+void RtcVideoCaptureDelegate::OnRemovedOnCaptureThread(
+    media::VideoCapture* capture) {
+  if (!error_occured_ && !state_callback_.is_null())
+    state_callback_.Run(CAPTURE_STOPPED);
 }
 
 }  // namespace content