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// 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.
#ifndef CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "media/video/capture/video_capture.h"
#include "media/video/capture/video_capture_types.h"
class GURL;
namespace media {
class VideoCaptureHandlerProxy;
}
namespace content {
class PepperMediaDeviceManager;
class PepperVideoCaptureHost;
class RenderViewImpl;
class PepperPlatformVideoCapture
: public media::VideoCapture,
public base::RefCounted<PepperPlatformVideoCapture>,
public media::VideoCapture::EventHandler {
public:
PepperPlatformVideoCapture(
const base::WeakPtr<RenderViewImpl>& render_view,
const std::string& device_id,
const GURL& document_url,
PepperVideoCaptureHost* handler);
// Detaches the event handler and stops sending notifications to it.
void DetachEventHandler();
// media::VideoCapture implementation.
virtual void StartCapture(
media::VideoCapture::EventHandler* handler,
const media::VideoCaptureParams& params) OVERRIDE;
virtual void StopCapture(media::VideoCapture::EventHandler* handler) OVERRIDE;
virtual bool CaptureStarted() OVERRIDE;
virtual int CaptureFrameRate() OVERRIDE;
// media::VideoCapture::EventHandler implementation
virtual void OnStarted(VideoCapture* capture) OVERRIDE;
virtual void OnStopped(VideoCapture* capture) OVERRIDE;
virtual void OnPaused(VideoCapture* capture) OVERRIDE;
virtual void OnError(VideoCapture* capture, int error_code) OVERRIDE;
virtual void OnRemoved(VideoCapture* capture) OVERRIDE;
virtual void OnFrameReady(
VideoCapture* capture,
const scoped_refptr<media::VideoFrame>& frame) OVERRIDE;
protected:
friend class base::RefCounted<PepperPlatformVideoCapture>;
virtual ~PepperPlatformVideoCapture();
private:
void Initialize();
void OnDeviceOpened(int request_id,
bool succeeded,
const std::string& label);
PepperMediaDeviceManager* GetMediaDeviceManager();
base::WeakPtr<RenderViewImpl> render_view_;
std::string device_id_;
std::string label_;
int session_id_;
scoped_ptr<media::VideoCaptureHandlerProxy> handler_proxy_;
PepperVideoCaptureHost* handler_;
media::VideoCapture* video_capture_;
// StartCapture() must be balanced by StopCapture(), otherwise this object
// will leak.
bool unbalanced_start_;
// Whether we have a pending request to open a device. We have to make sure
// there isn't any pending request before this object goes away.
bool pending_open_device_;
int pending_open_device_id_;
DISALLOW_COPY_AND_ASSIGN(PepperPlatformVideoCapture);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
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