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# CRABS-Based Video Playback Usage

Analyze how often your app uses CRABS video playback or video playback that uses the CRABS protocol.

## Overview

The data in this report contains information about CRABS video playback or video playback that is streamed using the CRABS protocol (legacy compared to HLS) by application.

- Territories: Worldwide
- Platforms: iOS, iPadOS.  For more information about iOS and iPadOS, see the Platforms section in [Data Completeness and Corrections](/documentation/Analytics-Reports/data-completeness-corrections).
- Availability:
  - Daily: Every day.
- History: On request, data is available beginning with iOS 17.4 and iPadOS 17.4.
- Completeness: Data from devices that contribute to this report can arrive as late as 8 days after the date it generates on device. You can download recent data daily, but it might be incomplete, and data updates incrementally daily, until all late-arriving events are available.
- Privacy:
  - Includes data from users who have opted to share their data with Apple and developers.
  - Individual rows will only appear if they have a value of 5 or more.
- Data Context: You can analyze your data with additional context by comparing it with the data in the [App Sessions Context](/documentation/Analytics-Reports/app-sessions-context) report, which provides a count of unique devices that use your app on a specific day. For example, if your app performed an action detailed in this report on 10 unique devices on a specific day, and the App Sessions Context report shows there were 100 unique devices running your app that day, then you can approximate that 10% of the devices running your app performed that action.

## Report Fields

|Report Field        |Description                                         |Data Type|
|--------------------|----------------------------------------------------|---------|
|Count               |Number of times the event occurred                  |`integer`|
|Territory           |Country or region in which the event occurred       |`string` |
|Date                |Date when the event occurred                        |`string` |
|Platform            |OS version on the device on which the event occurred|`string` |
|Device              |Type of device on which the event occurred          |`string` |
|Build               |Build of device on which event occurred             |`string` |
|Unique Devices      |The count of unique devices                         |`integer`|
|Release Type        |Type of software release                            |`string` |
|Indicated Bit Rate  |Indicated bit rate from context index file          |`integer`|
|Interface Type      |Interface type                                      |`string` |
|Play Time Wall Clock|Total play time (wall clock) in milliseconds        |`integer`|

## Glossary

|Dimension     |Value         |Definition    |
|--------------|--------------|--------------|
|Interface Type|Unknown       |Unknown       |
|Interface Type|Loopback      |Loopback      |
|Interface Type|Wired         |Wired         |
|Interface Type|WiFi (Infra)  |Wi-Fi (Infra) |
|Interface Type|WiFi (AWDL)   |Wi-Fi (AWDL)  |
|Interface Type|Cellular      |Cellular      |
|Interface Type|Intcoproc     |Intcoproc     |
|Interface Type|Companion Link|Companion Link|
|Interface Type|Management    |Management    |

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