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Modify playback behavior

Use playback modifiers in your HLS urls to change the default playback behavior.

Playback modifiers are optional parameters added to the video playback URL. These modifiers allow you to change the behavior of the stream you receive from Mux.

Mux Video supports 2 different types of playback policies: public and signed. Playback modifiers are supported for both types of playback policies. However, the method to add them differs.

Query String with public playback URL{PLAYBACK_ID}.m3u8?{MODIFIER_NAME}={MODIFIER_VALUE}

Replace PLAYBACK_ID with your asset's public policy playback ID. Replace MODIFIER_NAME and MODIFIER_VALUE with any of the supported modifiers listed below in this document.

JWT Claim with signed playback URL{PLAYBACK_ID}.m3u8?token={TOKEN}

Replace PLAYBACK_ID with your asset's signed policy playback ID and TOKEN with the signature generated. Add modifiers to your claims body in the JWT payload. View the guide for Secure video playback for details about adding query parameters to signed tokens.

Availiable playback modifiers

ModifierAvailiable ValuesDefault ValueDescription
redundant_streamstrue, falsefalseIncludes HLS redundant in the stream's manifest. See the Play your videos guide.
roku_trick_playtrue, falsefalseAdds support for timeline hover previews on Roku devices. See the Create timeline hover previews guide.
default_subtitles_langA BCP47 compliant language codenoneSets which subtitles/captions language should be set as the default. See the Subtitles guide guide.
max_resolution720p, 1080p, 1440p, 2160pnoneSets the maximum resolution of renditions included in the manifest. See the Control playback resolution guide.
min_resolution480p, 540p, 720p, 1080p, 1440p, 2160pnoneSets the minimum resolution of renditions included in the manifest. See the Control playback resolution guide.
rendition_orderdescAutomatically ordered by Mux's internal logic.Sets the logic to order renditions by in the HLS manifest. See the blog post.

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