Radiant Media Player supports DASH or HLS streaming with Shaka Player to HTML5 video. Our Shaka Player to HTML5 video implementation relies on media source extensions (MSE). Where media source extensions support is not available (e.g. iOS, older Android) we fallback to native HLS to HTML5 video. It is to be noted that due to the lack of support for media source extensions on iOS we cannot render DASH content on iOS. When neither media source extensions nor native HLS support are available the player may fallback to HLS to Flash. Note that Flash support in Radiant Media Player is deprecated and limited to supporting HLS streaming to Internet Explorer 11 for Windows 7.
If you want to stream DASH content to Radiant Media Player, Shaka Player engine will always be used. For HLS you can either use
hls.js or Shaka Player engine (difference in HLS supported features is explained below) and this can be selected through the hlsEngine player setting.
Generally available features like video ads, JavaScript API or playback rate changes are also supported with DASH to Radiant Media Player.
Note that more HLS options are generally available with our
hls.js based implementation but Shaka Player engine notably enables support for HLS with DRM content and MSE-based HLS streaming to macOS Safari 9+. Enabling HLS with Shaka Player
in Radiant Media Player is done by setting
hlsEngine: 'shakaplayer' in your player configuration. So when to use HLS with Shaka Player in Radiant Media Player one may ask?
As a rule of thumb Radiant Media Player should work with any-standard compliant DASH or HLS streaming service provider. In order to provide better cross-device support for DASH or HLS streaming to Radiant Media Player we recommend the following:
In this example we use an ABR multi-codec, multi-audio, multi-captions on-demand DASH stream:
<!-- Include Radiant Media Player JavaScript file in your <body> or <head> --> <script src="https://cdn.radiantmediatechs.com/rmp/4.7.4/js/rmp.min.js" integrity="sha384-Kb/KAbDJDP4azHeoa+2bXM3OEQATca+Br/FQ/V3LBdZX0lbm+Oes8Y6bBjn2qlSt" crossorigin="anonymous"></script> <!-- Set up your wrapper div with its unique id --> <div id="rmpPlayer"></div> <!-- Set up player configuration options --> <script> var bitrates = { dash: 'https://storage.googleapis.com/shaka-demo-assets/angel-one/dash.mpd', // For older devices and iOS we may provide a MP4 progressive download (or HLS) fallback mp4: [ 'https://www.rmp-streaming.com/media/bbb-360p.mp4' ] }; var settings = { licenseKey: 'your-license-key', bitrates: bitrates, width: 640, height: 360, poster: 'https://www.radiantmediaplayer.com/images/poster-rmp-showcase.jpg' }; // Reference to the wrapper div (unique id) var elementID = 'rmpPlayer'; // Create an object based on RadiantMP constructor var rmp = new RadiantMP(elementID); // Initialization ... test your page and done! rmp.init(settings); </script>
In this example we use an ABR multi-audio, multi-captions on-demand fMP4 HLS stream:
<!-- Include Radiant Media Player JavaScript file in your <body> or <head> --> <script src="https://cdn.radiantmediatechs.com/rmp/4.7.4/js/rmp.min.js" integrity="sha384-Kb/KAbDJDP4azHeoa+2bXM3OEQATca+Br/FQ/V3LBdZX0lbm+Oes8Y6bBjn2qlSt" crossorigin="anonymous"></script> <!-- Set up your wrapper div with its unique id --> <div id="rmpPlayer"></div> <!-- Set up player configuration options --> <script> var bitrates = { hls: 'https://storage.googleapis.com/shaka-demo-assets/angel-one-hls/master.m3u8' }; var settings = { licenseKey: 'your-license-key', bitrates: bitrates, width: 640, height: 360, // Here we tell the player to use Shaka Player for HLS streaming hlsEngine: 'shakaplayer', poster: 'https://www.radiantmediaplayer.com/images/poster-rmp-showcase.jpg', }; // Reference to the wrapper div (unique id) var elementID = 'rmpPlayer'; // Create an object based on RadiantMP constructor var rmp = new RadiantMP(elementID); // Initialization ... test your page and done! rmp.init(settings); </script>
dashFirst: Boolean
When used in conjonction with HLS this setting will tell the player to pick DASH (where supported) as a first choice over HLS (picking HLS as a first choice is the player default). DASH (where supported) is always picked first over MP4/WebM progressive download. Default: false.
hlsEngine: String
Since Radiant Media Player 4.4.0 it is possible to use Shaka Player HLS streaming engine instead of hls.js. While hls.js offers more options using HLS through Shaka player notably provides support for HLS with DRM content. Default: 'hlsjs'. Other possible value is 'shakaplayer'.
shakaStreamingIgnoreTextStreamFailures: Boolean
If true, the player will ignore text stream failures and proceed to play other streams. Default: true.
shakaPreferredAudioLanguage: String
The preferred language to use for audio tracks. If not given it will use the 'main' track. This must be specified as a language code (example: 'en', 'de' or 'pt-BR') and must match a DASH or HLS manifest stream. See https://tools.ietf.org/html/rfc5646 and http://www.iso.org/iso/home/standards/language_codes.htm. Default: ''.
shakaSmallGapLimit: Number
The threshold (in seconds) for a gap to be considered small and jumped automatically. Default: 0.5. See here for more information.
shakaJumpLargeGaps: Boolean
If true, automatically jump large gaps. Default: true. See here for more information.
shakaRetryParameters: Object
This represents an Object to pass to the player to specify specific retry parameters when attempting to load DASH or HLS content. The same retry parameters will apply for fetching DRM, manifest or segment data. More information can be found here. The following example shows the default player parameter that should work for most case-scenario.
shakaRetryParameters: {
timeout: 0, // timeout in ms, after which we abort a request; 0 means never
maxAttempts: 2, // the maximum number of requests before we fail
baseDelay: 1000, // the base delay in ms between retries
backoffFactor: 2, // the multiplicative backoff factor between retries
fuzzFactor: 0.5, // the fuzz factor to apply to each retry delay
}
shakaRestrictions: Object
An object describing application restrictions on what tracks can play. All restrictions must be fulfilled for a track to be playable. If a track does not meet the restrictions, it will not appear in the track list and it will not be played. More
information can be found
here. The setting is set as follows (replace number with the targeted value).
shakaRestrictions: {
minWidth: number, // The minimum width of a video track, in pixels.
maxWidth: number, // The maximum width of a video track, in pixels.
minHeight: number, // The minimum height of a video track, in pixels.
maxHeight: number, // The maximum height of a video track, in pixels.
minPixels: number, // The minimum number of total pixels in a video track (i.e. width * height).
maxPixels: number, // The maximum number of total pixels in a video track (i.e. width * height).
minAudioBandwidth: number, // The minimum bandwidth of an audio track, in bit/sec.
maxAudioBandwidth: number, // The maximum bandwidth of an audio track, in bit/sec.
minVideoBandwidth: number, // The minimum bandwidth of a video track, in bit/sec.
maxVideoBandwidth: number // The maximum bandwidth of a video track, in bit/sec.
}
shakaRequestConfiguration: Object
This object allows the player to fine tune the way it request manifest, segment or DRM data. For manifest and segment this setting can be used to make requests with credentials. This will allow cookies in cross-site requests. See here for more information. Example:
shakaRequestConfiguration: {
manifest: {
credentials: true
},
segment: {
credentials: true
}
}
This setting is often used in conjunction with DRM-encrypted content. See our DASH & HLS DRM documentation page for more advanced use-case.
shakaCustomConfig: Object
Allow passing a custom config object to Shaka Player. As such any Shaka Player internal setting can be tuned. Note that this may override any setting previously documented on this page. Default: {}. Example:
shakaCustomConfig: {
abr: {
bandwidthDowngradeTarget: 0.95
bandwidthUpgradeTarget: 0.85
defaultBandwidthEstimate: 500000
enabled: true
switchInterval: 8
}
};
Refer to this link for more information about Shaka Player configuration.
DASH and HLS are adaptive bitrate streaming technologies. Hence having a well-tuned ABR logic is paramount to insure a good user experience and reduce bandwidth cost. Radiant Media Player default ABR logic is tuned to work well in most common use-cases seen now-days. The following settings will let you tune the ABR/buffer logic to your environment. Only use those settings if you are trying to address a specific issue and fully understand what they do. Ill-configured ABR/buffer settings may cause a deteriorated user experience. Those settings are only applicable when streaming DASH or HLS through Shaka player in Radiant Media Player, they do not apply when using native HLS or HLS through hls.js (ABR/buffer settings for hls.js are available here).
shakaStreamingBufferBehind: Number
The maximum number of seconds of content that the player will keep in buffer behind the playhead when it appends a new media segment. The player will evict content to meet this limit. Default: 30.
shakaStreamingBufferingGoal: Number
The number of seconds of content that the player will attempt to buffer ahead of the playhead. This value must be greater than or equal to the shakaStreamingRebufferingGoal setting. Default: 20.
shakaStreamingRebufferingGoal: Number
The minimum number of seconds of content that the player must buffer before it can begin playback or can continue playback after it has entered into a buffering state. Default: 4.
shakaAbrDefaultBandwidthEstimate: Number
The default bandwidth estimate to use if there is not enough data available for the ABR logic (in bit/sec). Default: 500000.
shakaBandwidthDowngradeTarget: Number
The largest fraction of the estimated bandwidth we should use. We should downgrade to avoid this. Default: 0.95.
shakaBandwidthUpgradeTarget: Number
The fraction of the estimated bandwidth which we should try to use when upgrading. Default: 0.75.
shakaManifestDashDefaultPresentationDelay: Number
A default presentationDelay if suggestedPresentationDelay is missing in the MPEG DASH manifest, has to be bigger than minBufferTime * 1.5. Default: 10.