46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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// Copyright (c) 2013 Google Inc. 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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//
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// Implements a wrapper around Sync Sample Box (STSS) to iterate through the
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// compressed table.
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#ifndef MEDIA_MP4_SYNC_SAMPLE_ITERATOR_H_
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#define MEDIA_MP4_SYNC_SAMPLE_ITERATOR_H_
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#include <vector>
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#include "media/mp4/box_definitions.h"
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namespace media {
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namespace mp4 {
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// Sample to Chunk Box (STSS) Iterator.
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class SyncSampleIterator {
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public:
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explicit SyncSampleIterator(const SyncSample& sync_sample);
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// Advance the properties to refer to the next sample. Return status
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// indicating whether the sample is still valid.
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bool AdvanceSample();
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// Return whether the current sample is a sync sample.
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bool IsSyncSample();
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// Return whether sample (1-based) is a sync sample.
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bool IsSyncSample(uint32 sample);
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private:
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uint32 sample_number_;
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const std::vector<uint32>& sync_sample_vector_;
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std::vector<uint32>::const_iterator iterator_;
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bool is_empty_;
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DISALLOW_COPY_AND_ASSIGN(SyncSampleIterator);
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};
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} // namespace mp4
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} // namespace media
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#endif // MEDIA_MP4_SYNC_SAMPLE_ITERATOR_H_
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