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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_VIEWS_MEDIA_PREVIEW_CAMERA_PREVIEW_VIDEO_STREAM_VIEW_H_
#define CHROME_BROWSER_UI_VIEWS_MEDIA_PREVIEW_CAMERA_PREVIEW_VIDEO_STREAM_VIEW_H_
#include "base/memory/scoped_refptr.h"
#include "components/viz/common/gpu/context_lost_observer.h"
#include "components/viz/common/gpu/raster_context_provider.h"
#include "media/base/video_frame.h"
#include "media/renderers/paint_canvas_video_renderer.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/views/view.h"
// The camera live video feed view.
class VideoStreamView : public views::View, public viz::ContextLostObserver {
METADATA_HEADER(VideoStreamView, views::View)
public:
VideoStreamView();
VideoStreamView(const VideoStreamView&) = delete;
VideoStreamView& operator=(const VideoStreamView&) = delete;
~VideoStreamView() override;
// viz::ContextLostObserver.
void OnContextLost() override;
void ScheduleFramePaint(scoped_refptr<media::VideoFrame> frame);
void ClearFrame();
size_t GetRenderedFrameCount();
// views::View overrides
void OnPaint(gfx::Canvas* canvas) override;
protected:
// views::View overrides
gfx::Size CalculatePreferredSize(
const views::SizeBounds& /*available_size*/) const override;
void OnThemeChanged() override;
private:
const float targeted_aspect_ratio_;
const int rounded_radius_;
SkColor preview_base_color_;
media::PaintCanvasVideoRenderer video_renderer_;
scoped_refptr<media::VideoFrame> latest_frame_;
scoped_refptr<viz::RasterContextProvider> raster_context_provider_;
size_t rendered_frame_count_ = 0;
};
#endif // CHROME_BROWSER_UI_VIEWS_MEDIA_PREVIEW_CAMERA_PREVIEW_VIDEO_STREAM_VIEW_H_
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