IVS Player SDK
To use Amazon Interactive Video Service (IVS), you must use the Amazon IVS Player. The Player is a cross-platform suite of SDKs for playback of Amazon IVS streams. It is designed to leverage the Amazon IVS architecture and optimized for Amazon IVS playback.
The only player whose performance we can guarantee is the Amazon IVS player. To achieve low latency, the Amazon IVS player is required.
Key features of the Amazon IVS player are:
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Low-latency streaming — Low latency is a critical component in building good interactive user experiences that enrich the audience experience. Latency creeps in incrementally throughout the transmission path between broadcaster and viewer, eroding responsiveness.
End-to-end latency is the delay from when a live stream is captured on camera to when it appears on a viewer’s screen. Amazon IVS is designed to deliver low end-to-end latency (under five seconds, depending on the broadcast location and broadcaster settings). To achieve this low latency, the Amazon IVS player is required.
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Cross-platform consistency — Viewers watch broadcasts on a variety of platforms. From mobile devices to web browsers, the Amazon IVS Player gives all viewers a similar experience. This consistency is possible because every platform uses the same library of player functions. The player library is an integral component of the Amazon IVS architecture. Using one video stack ensures that all video-playback behaviors — including low-latency mode, timed metadata, analytics, error tracking, reporting, and logging — are available in a consistent way on all supported platforms.
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Adaptive bitrate streaming (ABR) — The Amazon IVS Player uses ABR algorithms optimized for low-latency environments. The Player measures quality of service and bandwidth availability in real time and adapts video quality and buffer levels, to provide uninterrupted playback. When connection quality suffers, ABR switches to a lower bitrate; when connection quality improves, it switches to a higher bitrate.
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Timed metadata — The Amazon IVS Player supports timed metadata, which can be used to build interactive elements such as polls and quizzes. Metadata is a set of data that describes and gives information about other data. With "timed" metadata, a timecode accompanies the piece of data about the stream. During playback, the timecode serves as a cue point to trigger action based on the data, such as:
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Sending player statistics for a sports stream
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Sending product details for a live shopping stream
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Sending questions for a live quiz stream
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Robust error handling — Handling transient errors well avoids interruptions in the viewing experience. The Amazon IVS Player’s robust error handling detects many potential streaming errors, automatically switching to an alternative rendition. Viewers continue watching the broadcast uninterrupted, without having to take any corrective action.
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Ease of integration — The Amazon IVS Player API bridges the gap between Amazon IVS customers’ applications and the Player library. The API has bindings for all supported platforms, making it easy to integrate the Player into applications while using familiar coding environments and techniques. With full control over UI elements, customers can customize the branding and presentation aspects of their applications.
The Amazon IVS player does not support casting with Airplay. Casting with Chromecast can be implemented outside the player using the default Chromecast receiver apps. However, latency in those apps is higher than in the Amazon IVS player SDK, so the switch will not be seamless. Also see our documentation on the Amazon IVS Broadcast SDK: for Low-Latency Streaming and for Real-Time Streaming.
Browser & Platform Requirements
For details on the latest released versions of various browsers, see:
While Amazon IVS may work with some older browsers, we do not fix bugs related to older browsers.
The IVS Player Web SDK (including the Video.js and Player JW integrations) is not supported in browser-like environments. This includes Native WebViews and “10-foot devices” (TVs, consoles, set-top boxes) which support web applications. Please contact IVS Support if you're unsure of specific browser support outside of the tables listed below.
Desktop Browsers
| Desktop Browser | Supported Platforms | Supported Versions |
|---|---|---|
| Chrome | Windows, macOS | Two major versions (current and most recent prior version) |
| Firefox | Windows, macOS | Two major versions (current and most recent prior version) |
| Edge | Windows 8.1 and later | 44.0 and later (In auto-quality mode on Microsoft Edge Legacy |
| Safari | macOS | Two major versions (current and most recent prior version) (In auto-quality mode on Safari for macOS 14 and above, IVS Player 1.3.0 and above support low-latency playback. For earlier versions of Safari and IVS Player, only normal-latency playback is supported. See above for "auto-quality mode.") |
Mobile Browsers
| Mobile Browser | Supported Versions |
|---|---|
| Chrome for iOS, Safari for iOS | Two major versions (current and most recent prior version) (Low-latency playback is not supported. Normal latency playback is supported. This constraint applies to all browsers for iOS.) (Timed metadata is supported only in Player 1.3.0 and later.) |
| Chrome for iPadOS, Safari for iPadOS | Two major versions (current and most recent prior version) (When "Request Mobile Website" is selected:
|
| Chrome for Android | Two major versions (current and most recent prior version) |
Native Platforms
| Platform | Supported Versions | Supported Devices |
|---|---|---|
| Android | 5.0 (Lollipop) and later | Phones and tablets |
| iOS | 13+ |
All |
IVS supports a minimum of 4 major iOS versions and 6 major Android versions. Our current version support may extend beyond these minimums. Customers will be notified via SDK release notes at least 3 months in advance of a major version no longer being supported.
Reducing Latency in Third-Party Players
For Basic and Standard channel types: For the lowest possible latency, you must use the Amazon IVS player. In third-party players (including iOS Safari), you can reduce latency to about 10 seconds by using the following configuration:
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Set your encoder’s (e.g. OBS) keyframe interval to 2 seconds or below.
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Add
?keyframeInterval=2to the RTMP(S) URL. For example:rtmps://a1b2c3d4e5f6.global-contribute.live-video.net:443/app/sk_us-west-2_abcd1234efgh5678ijkl?keyframeInterval=2
Note: The keyframe interval specified as part of the RTMP URL must be greater than or equal to the value configured in the encoder; otherwise, you may have playback issues. You can set the value to any integer between 2 and 6 inclusive, but 2 enables the lowest latency.
For Advanced channel types: The above guidance does not apply. Advanced channel types generate keyframe intervals automatically for encoding efficiency, with at most 2 seconds between keyframes, regardless of the source encoding keyframe interval setting.
iOS Safari
In iOS Safari, you can reduce latency to approximately 6-8 seconds by using the IVS player and configuring it to use a service worker. See Set Up Service Worker in the Player SDK: Web Guide for implementation details and a reference sample.
Note: Getting the lowest latency requires an IVS stream with the keyframe interval set to 2 seconds.
Audio-Only Playback
All IVS channel types support audio-only renditions. This can be particularly valuable for mobile applications. For instance, in your mobile app, you can switch the player to the audio-only rendition when the user backgrounds the application to conserve bandwidth.
For ADVANCED-SD and ADVANCED-HD channels, the audio-only rendition is included
automatically in the multivariant playlist. For BASIC and STANDARD channels, you must
append the ?allow_audio_only=true query parameter to the playback URL to
enable inclusion of the audio-only rendition.
Note: The IVS web player SDK supports audio-only playback only in versions 1.24.0 and later.
Support
If you encounter a playback error or other playback issue with your stream, determine the unique playback session identifier via the player API.
| For this Amazon IVS player: | Use this: |
|---|---|
| Android |
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| iOS |
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| Web |
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Share this playback session identifier with AWS support. With it, they can get information to help troubleshoot your issue.
Note: The Player is continually improved. See Amazon IVS Release Notes for available versions and fixed issues. If appropriate, before contacting support, update your version of the Player and see if that resolves your issue.
Versioning
The Amazon IVS Player SDKs use semantic
versioning
For this discussion, suppose:
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The latest release is 4.1.3.
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The latest release of the prior major version is 3.2.4.
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The latest release of version 1.x is 1.5.6.
Backward-compatible new features are added as minor releases of the latest version. In this case, the next set of new features will be added as version 4.2.0.
Backward-compatible, minor bug fixes are added as patch releases of the latest version. Here, the next set of minor bug fixes will be added as version 4.1.4.
Backward-compatible, major bug fixes are handled differently; these are added to several versions:
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Patch release of the latest version. Here, this is version 4.1.4.
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Patch release of the prior minor version. Here, this is version 3.2.5.
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Patch release of the latest version 1.x release. Here, this is version 1.5.7.
Major bug fixes are defined by the Amazon IVS product team. Typical examples are critical security updates and selected other fixes necessary for customers.
Note: In the examples above, released versions increment without skipping any numbers (e.g., from 4.1.3 to 4.1.4). In reality, one or more patch numbers may remain internal and not be released, so the released version could increment from 4.1.3 to, say, 4.1.6.
