60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef MEDIA_WEBM_CLUSTER_BUILDER_H_
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#define MEDIA_WEBM_CLUSTER_BUILDER_H_
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#include "base/basictypes.h"
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#include "base/memory/scoped_ptr.h"
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#include "media/base/buffers.h"
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namespace media {
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class Cluster {
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public:
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Cluster(scoped_ptr<uint8[]> data, int size);
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~Cluster();
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const uint8* data() const { return data_.get(); }
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int size() const { return size_; }
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private:
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scoped_ptr<uint8[]> data_;
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int size_;
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DISALLOW_IMPLICIT_CONSTRUCTORS(Cluster);
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};
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class ClusterBuilder {
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public:
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ClusterBuilder();
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~ClusterBuilder();
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void SetClusterTimecode(int64 cluster_timecode);
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void AddSimpleBlock(int track_num, int64 timecode, int flags,
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const uint8* data, int size);
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void AddBlockGroup(int track_num, int64 timecode, int duration, int flags,
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const uint8* data, int size);
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scoped_ptr<Cluster> Finish();
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private:
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void Reset();
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void ExtendBuffer(int bytes_needed);
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void UpdateUInt64(int offset, int64 value);
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void WriteBlock(uint8* buf, int track_num, int64 timecode, int flags,
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const uint8* data, int size);
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scoped_ptr<uint8[]> buffer_;
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int buffer_size_;
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int bytes_used_;
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int64 cluster_timecode_;
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DISALLOW_COPY_AND_ASSIGN(ClusterBuilder);
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};
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} // namespace media
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#endif // MEDIA_WEBM_CLUSTER_BUILDER_H_
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