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// Copyright 2013 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 "base/files/file.h"
#include "base/macros.h"
#include "media/base/media_export.h"
namespace base {
class TimeDelta;
namespace media {
// This class tries to determine if a file is a valid media file. The entire
// file is not decoded so a positive result from this class does not make the
// file safe to use in the browser process.
class MEDIA_EXPORT MediaFileChecker {
explicit MediaFileChecker(base::File file);
MediaFileChecker(const MediaFileChecker&) = delete;
MediaFileChecker& operator=(const MediaFileChecker&) = delete;
// After opening |file|, up to |check_time| amount of wall-clock time is spent
// decoding the file. The amount of audio/video data decoded will depend on
// the bitrate of the file and the speed of the CPU.
bool Start(base::TimeDelta check_time);
base::File file_;
} // namespace media