chromium/media/capture/content/animated_content_sampler.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_CAPTURE_CONTENT_ANIMATED_CONTENT_SAMPLER_H_
#define MEDIA_CAPTURE_CONTENT_ANIMATED_CONTENT_SAMPLER_H_

#include "base/containers/circular_deque.h"
#include "base/time/time.h"
#include "media/capture/capture_export.h"
#include "ui/gfx/geometry/rect.h"

namespace media {

// Analyzes a sequence of events to detect the presence of constant frame rate
// animated content.  In the case where there are multiple regions of animated
// content, AnimatedContentSampler will propose sampling the one having the
// largest "smoothness" impact, according to human perception (e.g., a 24 FPS
// video versus a 60 FPS busy spinner).
//
// In addition, AnimatedContentSampler will provide rewritten frame timestamps,
// for downstream consumers, that are "truer" to the source content than to the
// local presentation hardware.
class CAPTURE_EXPORT AnimatedContentSampler { … };

}  // namespace media

#endif  // MEDIA_CAPTURE_CONTENT_ANIMATED_CONTENT_SAMPLER_H_