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// 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.
#ifndef REMOTING_CLIENT_SOFTWARE_VIDEO_RENDERER_H_
#define REMOTING_CLIENT_SOFTWARE_VIDEO_RENDERER_H_
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "remoting/protocol/performance_tracker.h"
#include "remoting/protocol/video_renderer.h"
#include "remoting/protocol/video_stub.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace webrtc {
class DesktopFrame;
} // namespace webrtc
namespace remoting {
class FrameConsumer;
class VideoDecoder;
namespace protocol {
class PerformanceTracker;
} // namespace protocol
// Implementation of VideoRenderer interface that decodes frame on CPU (on a
// decode thread) and then passes decoded frames to a FrameConsumer.
class SoftwareVideoRenderer : public protocol::VideoRenderer,
public protocol::VideoStub {
public:
// All methods must be called on the same thread the renderer is created. The
// |decode_task_runner_| is used to decode the video packets. |perf_tracker|
// must outlive the renderer. |perf_tracker| may be nullptr, performance
// tracking is disabled in that case.
SoftwareVideoRenderer(
scoped_refptr<base::SingleThreadTaskRunner> decode_task_runner,
FrameConsumer* consumer,
protocol::PerformanceTracker* perf_tracker);
~SoftwareVideoRenderer() override;
// VideoRenderer interface.
void OnSessionConfig(const protocol::SessionConfig& config) override;
protocol::VideoStub* GetVideoStub() override;
// protocol::VideoStub interface.
void ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
const base::Closure& done) override;
private:
void RenderFrame(int32_t frame_id,
const base::Closure& done,
scoped_ptr<webrtc::DesktopFrame> frame);
void OnFrameRendered(int32_t frame_id, const base::Closure& done);
scoped_refptr<base::SingleThreadTaskRunner> decode_task_runner_;
FrameConsumer* consumer_;
protocol::PerformanceTracker* perf_tracker_;
scoped_ptr<VideoDecoder> decoder_;
webrtc::DesktopSize source_size_;
webrtc::DesktopVector source_dpi_;
base::ThreadChecker thread_checker_;
base::WeakPtrFactory<SoftwareVideoRenderer> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(SoftwareVideoRenderer);
};
} // namespace remoting
#endif // REMOTING_CLIENT_SOFTWARE_VIDEO_RENDERER_H_
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