video_capture_controller.h | Explore in Territory

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_CONTROLLER_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_CONTROLLER_H_

#include <list>
#include <memory>

#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/process/process.h"
#include "base/time/time.h"
#include "base/token.h"
#include "base/unguessable_token.h"
#include "content/browser/renderer_host/media/video_capture_controller_event_handler.h"
#include "content/browser/renderer_host/media/video_capture_provider.h"
#include "content/common/content_export.h"
#include "content/public/browser/video_capture_device_launcher.h"
#include "media/capture/mojom/video_capture.mojom.h"
#include "media/capture/mojom/video_capture_types.mojom.h"
#include "media/capture/video/video_frame_receiver.h"
#include "media/capture/video_capture_types.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/video_effects/public/mojom/video_effects_processor.mojom-forward.h"
#include "third_party/blink/public/common/media/video_capture.h"
#include "third_party/blink/public/common/mediastream/media_stream_request.h"

namespace content {

class VideoCaptureDeviceLaunchObserver;

// Implementation of media::VideoFrameReceiver that distributes received frames
// to potentially multiple connected clients.
// A call to CreateAndStartDeviceAsync() asynchronously brings up the device. If
// CreateAndStartDeviceAsync() has been called, ReleaseDeviceAsync() must be
// called before releasing the instance.
// Instances must be RefCountedThreadSafe, because an owner
// (VideoCaptureManager) wants to be able to release its reference during an
// (asynchronously executing) run of CreateAndStartDeviceAsync(). To this end,
// the owner passes in the shared ownership as part of |done_cb| into
// CreateAndStartDeviceAsync().
class CONTENT_EXPORT VideoCaptureController
    : public media::VideoFrameReceiver,
      public VideoCaptureDeviceLauncher::Callbacks,
      public base::RefCountedThreadSafe<VideoCaptureController> { … };

}  // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_CONTROLLER_H_
chromium/content/browser/renderer_host/media/video_capture_controller.h
