---
title: Frame duration
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/timecode_sample_description/frame_duration
---

# Frame duration

A 32-bit integer that indicates how long each frame lasts in real time.

## See Also

### Data fields

- [Reserved](quicktime-file-format/timecode_sample_description/reserved.md)
- [Flags](quicktime-file-format/timecode_sample_description/flags.md)
- [Time scale](quicktime-file-format/timecode_sample_description/time_scale.md)
- [Number of frames](quicktime-file-format/timecode_sample_description/number_of_frames.md)
- [Reserved](quicktime-file-format/timecode_sample_description/reserved2.md)
- [Source reference](quicktime-file-format/timecode_sample_description/source_reference.md)