Creating New Adaptive Groups

Owned by Copy Space for Confluence
Last updated: 17 Jul 2019 by Alon Men
3 min read

To Create a New Adaptive Group:

  1.  In the Zixi Broadcaster administrative screen, click the Adaptive tab.
  2. Click Add Group. The Adaptive live streams group window is displayed.
  3. In the Group Name field, enter the unique string as the adaptive group's name. 
  4. Under StreamID, select a stream from the drop-down list to create an adaptive bitrate.
  5. Enter the desired Bitrate[kbps] for that stream in the adjacent field to Stream ID.
  6. Click  to add as many streams as you want to include in the group and repeat steps 4 and 5 for every stream that is added to the group.
  7. Select one or more Protocols with that will be supported for this adaptive group. The Zixi protocol option enables devices using the Zixi SDK to view the stream using the Zixi protocol.
  8. Select Support MultiAudio if the input streams include multiple audio channels to enable multiple separate audio channels in the adaptive group.
  9. Specify the HLS/Dash segment/chunk duration and count (See details in the table below).
  10. Specify the duration to Keep recorded files for [minutes]. If the file is left as blank, the system will use the global settings specified in the Settings > Live Protocols screen in the HLS DVR Maximum Recording Duration field.
  11. In the File name template field, specify the file name pattern that Zixi will use to generate when saving the recorded content. 
  12. Click OK.
    The new Adaptive Group is created and appears on the Adaptive screen.
ParameterDescription

Group Name

Specifies the unique identifier for this group.

Stream ID

Select an input stream from the drop-down list.

Bitrate [kbps]

Specify the bitrate for the selected stream.

Protocols

Select one or more Protocols that will be supported for this adaptive group - Zixi HLS (enables devices using the Zixi SDK to view the stream using the Zixi protocol), HLS, DASH/fMP4 HLS

Support MultiAudioSelect this checkbox to enable multiple separate audio channels in the adaptive group.
HLS Over MulticastSelect this checkbox to enable multicasting of the adaptive stream (requires multicast to be enabled in the Settings)
HLS Segment Duration [sec]Specify the duration in seconds of each segment/chunk in the HLS playlist. You can specify sub-second durations (e.g. 0.5). (Default: 6 seconds)
HLS Segments CountSpecify the number of segments in the HLS playlist.
DASH Segment Duration [sec]Specify the duration in seconds of each segment/chunk in the DASH adaptive group. You can specify sub-second durations (e.g. 0.5). (Default: 6 seconds)
DASH Segments CountSpecify the number of segments in the DASH adaptive group.
Recording

Keep recorded files for [minutes]

Specifies the maximum time for storing the recording. If the file is left as blank, the system will use the global settings specified in the Settings > Live Protocols screen in the HLS DVR Maximum Recording Duration field.

File name template

Specify the file name pattern that Zixi will use to generate when saving the recorded content. A separate file will be generated for each recording up to the time specified in the Max recorded file duration parameter (see above). After this duration a new file will be generated.

The file name pattern can include any string and up to five variables listed below. Only the %T=HH.MM.SS creation time is mandatory. You can change the order of these variables and add text as long as you maintain the legitimate structure of the file in Linux and Windows:

  • %S=stream id - optional.
  • %Y=year - optional
  • %M=month - optional
  • %D=day - optional
  • %T=HH.MM.SS creation time - mandatory

For example, the following pattern %Y_recording%T.ts will generate the following file name 2017_recording15:32:35.ts.