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// 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.
#ifndef MEDIA_WEBM_CLUSTER_BUILDER_H_
#define MEDIA_WEBM_CLUSTER_BUILDER_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "media/base/buffers.h"
namespace media {
class Cluster {
public:
Cluster(scoped_array<uint8> data, int size);
~Cluster();
const uint8* data() const { return data_.get(); }
int size() const { return size_; }
private:
scoped_array<uint8> data_;
int size_;
DISALLOW_IMPLICIT_CONSTRUCTORS(Cluster);
};
class ClusterBuilder {
public:
ClusterBuilder();
~ClusterBuilder();
void SetClusterTimecode(int64 cluster_timecode);
void AddSimpleBlock(int track_num, int64 timecode, int flags,
const uint8* data, int size);
void AddBlockGroup(int track_num, int64 timecode, int duration, int flags,
const uint8* data, int size);
scoped_ptr<Cluster> Finish();
private:
void Reset();
void ExtendBuffer(int bytes_needed);
void UpdateUInt64(int offset, int64 value);
void WriteBlock(uint8* buf, int track_num, int64 timecode, int flags,
const uint8* data, int size);
scoped_array<uint8> buffer_;
int buffer_size_;
int bytes_used_;
int64 cluster_timecode_;
DISALLOW_COPY_AND_ASSIGN(ClusterBuilder);
};
} // namespace media
#endif // MEDIA_WEBM_CLUSTER_BUILDER_H_
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