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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_PLUGIN_MEDIA_SOURCE_VIDEO_RENDERER_H_
#define REMOTING_CLIENT_PLUGIN_MEDIA_SOURCE_VIDEO_RENDERER_H_
#include <string>
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "remoting/client/chromoting_stats.h"
#include "remoting/client/video_renderer.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_region.h"
namespace remoting {
// VideoRenderer implementation that packs data into a WebM stream that can be
// passed to <video> tag using MediaSource API.
class MediaSourceVideoRenderer : public VideoRenderer {
public:
class Delegate {
public:
Delegate() {}
virtual ~Delegate() {}
// Called when stream size changes.
virtual void OnMediaSourceSize(const webrtc::DesktopSize& size,
const webrtc::DesktopVector& dpi) = 0;
// Called when desktop shape changes.
virtual void OnMediaSourceShape(const webrtc::DesktopRegion& shape) = 0;
// Called when the MediaSource needs to be reset (e.g. because screen size
// has changed).
virtual void OnMediaSourceReset(const std::string& format) = 0;
// Called when new data becomes available.
virtual void OnMediaSourceData(uint8_t* buffer, size_t buffer_size,
bool keyframe) = 0;
};
explicit MediaSourceVideoRenderer(Delegate* data_forwarder);
virtual ~MediaSourceVideoRenderer();
// VideoRenderer interface.
virtual void Initialize(const protocol::SessionConfig& config) OVERRIDE;
virtual ChromotingStats* GetStats() OVERRIDE;
virtual void ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
const base::Closure& done) OVERRIDE;
private:
// Helper class used to generate WebM stream.
class VideoWriter;
Delegate* delegate_;
scoped_ptr<VideoWriter> writer_;
webrtc::DesktopVector frame_dpi_;
webrtc::DesktopRegion desktop_shape_;
ChromotingStats stats_;
int64 latest_sequence_number_;
DISALLOW_COPY_AND_ASSIGN(MediaSourceVideoRenderer);
};
} // namespace remoting
#endif // REMOTING_CLIENT_PLUGIN_MEDIA_SOURCE_VIDEO_RENDERER_H_
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