chromium/cc/layers/video_frame_provider.h

// 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 CC_LAYERS_VIDEO_FRAME_PROVIDER_H_
#define CC_LAYERS_VIDEO_FRAME_PROVIDER_H_

#include "base/memory/ref_counted.h"
#include "base/time/time.h"
#include "cc/cc_export.h"

namespace media {
class VideoFrame;
}

namespace cc {

// VideoFrameProvider and VideoFrameProvider::Client define the relationship by
// which video frames are exchanged between a provider and client.
//
// Threading notes: This class may be used in a multithreaded manner. However,
// if the Client implementation calls GetCurrentFrame()/PutCurrentFrame() from
// one thread, the provider must ensure that all client methods (except
// StopUsingProvider()) are called from that thread (typically the compositor
// thread).
class CC_EXPORT VideoFrameProvider { … };

}  // namespace cc

#endif  // CC_LAYERS_VIDEO_FRAME_PROVIDER_H_