blob: 8c849cbcdf843b8a3ca95fc500a21edafdfc1704 [file] [log] [blame]
// Copyright (c) 2012 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.
#include <memory>
#include "base/memory/shared_memory.h"
#include "content/common/content_export.h"
#include "media/capture/mojom/video_capture_types.mojom.h"
#include "mojo/public/cpp/system/buffer.h"
#include "ui/gfx/geometry/size.h"
namespace media {
class VideoFrame;
} // namespace media
namespace content {
typedef int VideoCaptureControllerID;
// VideoCaptureControllerEventHandler is the interface for
// VideoCaptureController to notify clients about the events such as
// BufferReady, FrameInfo, Error, etc.
// OnError and OnEnded need to be scheduled to the end of message queue to
// guarantee some other clearing jobs are done before they are handled.
// Other methods can be forwarded synchronously.
// TODO(mcasas): merge back into VideoCaptureController
class CONTENT_EXPORT VideoCaptureControllerEventHandler {
// An Error has occurred in the VideoCaptureDevice.
virtual void OnError(VideoCaptureControllerID id,
media::VideoCaptureError error) = 0;
virtual void OnNewBuffer(VideoCaptureControllerID id,
media::mojom::VideoBufferHandlePtr buffer_handle,
int buffer_id) = 0;
// A previously created buffer has been freed and will no longer be used.
virtual void OnBufferDestroyed(VideoCaptureControllerID id,
int buffer_id) = 0;
// A buffer has been filled with a captured VideoFrame.
virtual void OnBufferReady(
VideoCaptureControllerID id,
int buffer_id,
const media::mojom::VideoFrameInfoPtr& frame_info) = 0;
// The capture session has ended and no more frames will be sent.
virtual void OnEnded(VideoCaptureControllerID id) = 0;
// VideoCaptureDevice has successfully started the device.
virtual void OnStarted(VideoCaptureControllerID id) = 0;
virtual void OnStartedUsingGpuDecode(VideoCaptureControllerID id) = 0;
virtual ~VideoCaptureControllerEventHandler() {}
} // namespace content