chromium/components/capture_mode/camera_video_frame_handler.h

// 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 COMPONENTS_CAPTURE_MODE_CAMERA_VIDEO_FRAME_HANDLER_H_
#define COMPONENTS_CAPTURE_MODE_CAMERA_VIDEO_FRAME_HANDLER_H_

#include <memory>
#include <vector>

#include "base/containers/flat_map.h"
#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "components/capture_mode/capture_mode_export.h"
#include "media/capture/mojom/video_capture_buffer.mojom-forward.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/shared_remote.h"
#include "services/video_capture/public/mojom/video_frame_handler.mojom.h"
#include "services/video_capture/public/mojom/video_source.mojom.h"

namespace media {
class VideoFrame;
}  // namespace media

namespace ui {
class ContextFactory;
}  // namespace ui

namespace capture_mode {

// Defines an interface for an object that can hold and own a video buffer
// handle, and able to extract a `VideoFrame` from the buffer when the frame
// becomes ready in it. Concrete subclasses implements this frame extraction
// differently based on the type of the buffer.
class BufferHandleHolder { … };

// -----------------------------------------------------------------------------

// Defines an object that will subscribe to a camera device, whose remote video
// source is the given `camera_video_source`. It will handle the reception of
// the video frames from that device and provide them to its `Delegate`.
class CAPTURE_MODE_EXPORT CameraVideoFrameHandler
    : public video_capture::mojom::VideoFrameHandler { … };

}  // namespace capture_mode

#endif  // COMPONENTS_CAPTURE_MODE_CAMERA_VIDEO_FRAME_HANDLER_H_