---
title: Shadow sync atom
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/sample_table_atom/shadow_sync_atom
---

# Shadow sync atom

An atom reserved for future use.

## See Also

### Data fields

- [Size](quicktime-file-format/sample_table_atom/size.md)
- [Type](quicktime-file-format/sample_table_atom/type.md)
- [Sample description atom](quicktime-file-format/sample_table_atom/sample_description_atom.md)
- [Time-to-sample atom](quicktime-file-format/sample_table_atom/time-to-sample_atom.md)
- [Composition offset atom](quicktime-file-format/sample_table_atom/composition_offset_atom.md)
- [Composition shift least greatest atom](quicktime-file-format/sample_table_atom/composition_shift_least_greatest_atom.md)
- [Sync sample atom](quicktime-file-format/sample_table_atom/sync_sample_atom.md)
- [Partial sync sample atom](quicktime-file-format/sample_table_atom/partial_sync_sample_atom.md)
- [Sample-to-chunk atom](quicktime-file-format/sample_table_atom/sample-to-chunk_atom.md)
- [Sample size atom](quicktime-file-format/sample_table_atom/sample_size_atom.md)
- [Chunk offset atom](quicktime-file-format/sample_table_atom/chunk_offset_atom.md)
- [Sample dependency flags atom](quicktime-file-format/sample_table_atom/sample_dependency_flags_atom.md)