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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_CODEC_VIDEO_ENCODER_ACTIVE_MAP_H_
#define REMOTING_CODEC_VIDEO_ENCODER_ACTIVE_MAP_H_
#include <memory>
#include <stdint.h>
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_region.h"
namespace remoting {
class VideoEncoderActiveMap {
public:
VideoEncoderActiveMap();
VideoEncoderActiveMap(const VideoEncoderActiveMap&) = delete;
VideoEncoderActiveMap& operator=(const VideoEncoderActiveMap&) = delete;
~VideoEncoderActiveMap();
// Initializes |active_map_| for an image of |size|.
void Initialize(const webrtc::DesktopSize& size);
// Clears |active_map_| without resetting the size.
void Clear();
// Updates the active map according to |updated_region|.
void Update(const webrtc::DesktopRegion& updated_region);
uint8_t* data() { return active_map_.get(); }
uint32_t width() { return active_map_size_.width(); }
uint32_t height() { return active_map_size_.height(); }
private:
// Active map used to optimize out processing of unchanged macroblocks.
std::unique_ptr<uint8_t[]> active_map_;
webrtc::DesktopSize active_map_size_;
};
} // namespace remoting
#endif // REMOTING_CODEC_VIDEO_ENCODER_ACTIVE_MAP_H_