Supported HLS streams
Which streams are supported by CaptionHub Live
CaptionHub Live supports most flavours of HLS. The following streaming providers are known to output compatible HLS:
Other HLS streams
It’s likely that CaptionHub Live is compatible with the output of your streaming provider. We support both traditional HLS and CMAF HLS. Please contact us if you want to discuss compatibility of your streaming setup.
HLS stream requirements
- The stream needs to be publicly accessible
- The stream can’t use encryption or DRM
- Each segment needs to have a
#EXT-X-PROGRAM-DATE-TIMEtag in order to be used with a player plugin.
- The minimum segment size is 5 seconds, and minimum total playlist size is 15 seconds.
- The HLS stream needs to allow CORS in order to provide a preview inside CaptionHub.
Supported HLS features
- When using separate audio playlists, the default audio stream will be transcribed. You can also override the track used for transcription.
- We support MPEG-TS or Fragmented MP4 (fMP4) video. Using Packed Audio is also supported.
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