2014-02-14 23:21:05 +00:00
|
|
|
// Copyright 2014 Google Inc. All rights reserved.
|
|
|
|
|
//
|
|
|
|
|
// Use of this source code is governed by a BSD-style
|
|
|
|
|
// license that can be found in the LICENSE file or at
|
|
|
|
|
// https://developers.google.com/open-source/licenses/bsd
|
2013-10-08 17:37:58 +00:00
|
|
|
//
|
|
|
|
|
// Implements a wrapper around Sync Sample Box (STSS) to iterate through the
|
|
|
|
|
// compressed table.
|
|
|
|
|
|
|
|
|
|
#ifndef MEDIA_MP4_SYNC_SAMPLE_ITERATOR_H_
|
|
|
|
|
#define MEDIA_MP4_SYNC_SAMPLE_ITERATOR_H_
|
|
|
|
|
|
|
|
|
|
#include <vector>
|
|
|
|
|
|
|
|
|
|
#include "media/mp4/box_definitions.h"
|
|
|
|
|
|
|
|
|
|
namespace media {
|
|
|
|
|
namespace mp4 {
|
|
|
|
|
|
|
|
|
|
// Sample to Chunk Box (STSS) Iterator.
|
|
|
|
|
class SyncSampleIterator {
|
|
|
|
|
public:
|
|
|
|
|
explicit SyncSampleIterator(const SyncSample& sync_sample);
|
|
|
|
|
|
|
|
|
|
// Advance the properties to refer to the next sample. Return status
|
|
|
|
|
// indicating whether the sample is still valid.
|
|
|
|
|
bool AdvanceSample();
|
|
|
|
|
|
|
|
|
|
// Return whether the current sample is a sync sample.
|
|
|
|
|
bool IsSyncSample();
|
|
|
|
|
|
|
|
|
|
// Return whether sample (1-based) is a sync sample.
|
|
|
|
|
bool IsSyncSample(uint32 sample);
|
|
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
uint32 sample_number_;
|
|
|
|
|
const std::vector<uint32>& sync_sample_vector_;
|
|
|
|
|
std::vector<uint32>::const_iterator iterator_;
|
|
|
|
|
bool is_empty_;
|
|
|
|
|
|
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(SyncSampleIterator);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
} // namespace mp4
|
|
|
|
|
} // namespace media
|
|
|
|
|
|
|
|
|
|
#endif // MEDIA_MP4_SYNC_SAMPLE_ITERATOR_H_
|
