LiveManifestConfig-Intelligent Media Services(IMS)-阿里云帮助中心

Parameter	Type	Description	Example
	object	The live manifest configuration.
SegmentCount	integer	The number of segments. This parameter applies to the HLS/HLS_CMAF protocol. By default, the channel configuration is used. Valid values: 2 to 100.	3
DateTimeInterval	integer	The interval (in seconds) for inserting the EXT-X-PROGRAM-DATE-TIME time tag. By default, the tag is not inserted. Valid values: 1 to 3600. This parameter applies to the HLS/HLS_CMAF protocol.	5
MinUpdatePeriod	integer	The minimum update interval. Unit: seconds. Valid values: 1 to 3600. Default value: 2 segment durations. This parameter applies to DASH. Note Set this parameter to a value less than the minimum buffer time. An excessively large value may cause DASH playback stuttering.	8
AdMarkers	string	The ad markers supported in the playlist. Valid values: NONE: removes ad markers. DATE_RANGE: uses the EXT-X-DATERANGE tag defined in the HLS specification. This value is available when the endpoint protocol is HLS/HLS_CMAF. XML: uses the XML ad markers defined in the DASH specification. This value is available when the endpoint protocol is DASH.	NONE
StreamOrder	string	The stream sorting rule. Valid values: ORIGINAL: retains the original order of the input sub-manifest. VIDEO_BITRATE_ASCENDING: sorts by video stream bitrate in ascending order. VIDEO_BITRATE_DESCENDING: sorts by video stream bitrate in descending order.	ORIGINAL
MinVideoBitrate	integer	The minimum input bitrate threshold (unit: bit/s). A video track must have a bitrate greater than or equal to this threshold to be played from this endpoint. Valid values: integers greater than 0. By default, this parameter is empty and no minimum bitrate is set.	1000000
MaxVideoBitrate	integer	The maximum input bitrate threshold (unit: bit/s). A video track must have a bitrate less than or equal to this threshold to be played from this endpoint. Valid values: integers greater than 0. By default, this parameter is empty and no maximum bitrate limit is set.	8000000
MinBufferTime	integer	The minimum buffer time. Unit: seconds. Valid values: 1 to 30. Default value: 2 segment durations. This parameter applies only to DASH. Note An excessively small minimum buffer time may cause playback stuttering. Set this parameter to a value no less than 2 segment durations.	8
PresentationDelay	integer	The suggested presentation delay. Unit: seconds. Valid values: 1 to 60. Default value: 3 segment durations.	12
ManifestDuration	integer	The maximum time-shift duration during live streaming. Unit: seconds. Valid values: 1 to 3600. Default value: 60. This parameter applies to DASH.	60
SegmentTemplateFormat	string	The segment template. Currently, only NUMBER_TIMELINE (default) is supported. This parameter applies to DASH.	NUMBER_TIMELINE
PartHoldBackMs	integer

object

The live manifest configuration.

SegmentCount

integer

The number of segments. This parameter applies to the HLS/HLS_CMAF protocol. By default, the channel configuration is used. Valid values: 2 to 100.

3

DateTimeInterval

integer

The interval (in seconds) for inserting the EXT-X-PROGRAM-DATE-TIME time tag. By default, the tag is not inserted. Valid values: 1 to 3600. This parameter applies to the HLS/HLS_CMAF protocol.

5

MinUpdatePeriod

integer

The minimum update interval. Unit: seconds. Valid values: 1 to 3600. Default value: 2 segment durations. This parameter applies to DASH.

Note

Set this parameter to a value less than the minimum buffer time. An excessively large value may cause DASH playback stuttering.

8

AdMarkers

string

The ad markers supported in the playlist. Valid values:

NONE: removes ad markers.
DATE_RANGE: uses the EXT-X-DATERANGE tag defined in the HLS specification. This value is available when the endpoint protocol is HLS/HLS_CMAF.
XML: uses the XML ad markers defined in the DASH specification. This value is available when the endpoint protocol is DASH.

NONE

StreamOrder

string

The stream sorting rule. Valid values:

ORIGINAL: retains the original order of the input sub-manifest.
VIDEO_BITRATE_ASCENDING: sorts by video stream bitrate in ascending order.
VIDEO_BITRATE_DESCENDING: sorts by video stream bitrate in descending order.

ORIGINAL

MinVideoBitrate

integer

The minimum input bitrate threshold (unit: bit/s). A video track must have a bitrate greater than or equal to this threshold to be played from this endpoint. Valid values: integers greater than 0. By default, this parameter is empty and no minimum bitrate is set.

1000000

MaxVideoBitrate

integer

The maximum input bitrate threshold (unit: bit/s). A video track must have a bitrate less than or equal to this threshold to be played from this endpoint. Valid values: integers greater than 0. By default, this parameter is empty and no maximum bitrate limit is set.

8000000

MinBufferTime

integer

The minimum buffer time. Unit: seconds. Valid values: 1 to 30. Default value: 2 segment durations. This parameter applies only to DASH.

Note

An excessively small minimum buffer time may cause playback stuttering. Set this parameter to a value no less than 2 segment durations.

8

PresentationDelay

integer

The suggested presentation delay. Unit: seconds. Valid values: 1 to 60. Default value: 3 segment durations.

12

ManifestDuration

integer

The maximum time-shift duration during live streaming. Unit: seconds. Valid values: 1 to 3600. Default value: 60. This parameter applies to DASH.

60

SegmentTemplateFormat

string

The segment template. Currently, only NUMBER_TIMELINE (default) is supported. This parameter applies to DASH.

NUMBER_TIMELINE

PartHoldBackMs

integer