Structure

Segment	Tag	Tag Count
Segment in which the ad avail starts.	OATCLS-SCTE35	1
Segment in which the ad avail starts.	ASSET	1
Segment in which the ad avail starts.	CUE-OUT	1
Each succeeding segment.	CUE-OUT-CONT	0-n
Segment in which ad avail ends.	CUE-IN	1

Tag contents

OATCLS-SCTE35 containing the base64 encoded raw bytes of the original SCTE-35 ad avail message.
ASSET containing the CAID or UPID as specified in the original SCTE35 message.
1 CUE-OUT per ad avail.
CUE-OUT-CONT containing the following:
- The elapsed time of the avail.
- The duration declared in the original SCTE35 message.
- SCTE35 containing the base64 encoded raw bytes of the original SCTE-35 ad avail message.
  These lines repeat until the ad avail ends.
CUE-IN to indicate the end of the avail.

Example

#EXT-OATCLS-SCTE35:/DA0AAAAAAAAAAAABQb+ADAQ6QAeAhxDVUVJQAAAO3/PAAEUrEoICAAAAAAg+2UBNAAANvrtoQ==  
#EXT-X-ASSET:CAID=0x0000000020FB6501  
#EXT-X-CUE-OUT:201.467
.
.
.
#EXT-X-CUE-OUT-CONT:ElapsedTime=5.939,Duration=201.467,SCTE35=/DA0AAAA+…AAg+2UBNAAANvrtoQ==
.
.
.
#EXT-X-CUE-IN

Meaning of /DA0AAAAAAAAAAAABQb+ADAQ6QAeAhxDVUVJQAAAO3/PAAEUrEoICAAAAAAg+2UBNAAANvrtoQ== acquired at https://comcast.github.io/scte35-js/

tableId: 252
selectionSyntaxIndicator: false
privateIndicator: false
sectionLength: 52
protocolVersion: 0
encryptedPacket: false
encryptedAlgorithm: 0
ptsAdjustment: 0
cwIndex: 0
tier: 0
spliceCommandLength: 5
spliceCommandType: 6
spliceCommand:
- specified: true
- pts: 3150057
descriptorLoopLength: 30
descriptors:
- 0:
  - spliceDescriptorTag: 2
  - descriptorLength: 28
  - indentifier: "CUEI"
  - segmentationEventId: 1073741883
  - segmentationEventCancelIndicator: false
  - programSegmentationFlag: true
  - segmentationDurationFlag: true
  - deliveryNotRestrictedFlag: false
  - webDeliveryAllowedFlag: false
  - noRegionalBlackoutFlag: true
  - archiveAllowedFlag: true
  - deviceResctrictions: 3
  - segmentationDuration: 18132042
  - segmentationUpidType: 8
  - segmentationUpidLength: 8
  - segmentationUpid:
    - 0: 0
    - 1: 0
    - 2: 0
    - 3: 0
    - 4: 32
    - 5: 251
    - 6: 101
    - 7: 1
  - segmentationTypeId: 52
  - segmentNum: 0
  - segmentsExpected: 0
crc: 922414497

Reference Splice Info Table containing PID

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1055 (0x041F)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x00000012, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x075C14B4A
    Duration PTS: 0x00066FF30 (6750000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x12 (18), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000012
    CRC32: 0xEAA8473F (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1055 (0x041F)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x00000012, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x075C14B4A
    Duration PTS: 0x00066FF30 (6750000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x12 (18), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000012
    CRC32: 0xEAA8473F (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1055 (0x041F)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x00000012, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x075C14B4A
    Duration PTS: 0x00066FF30 (6750000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x12 (18), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000012
    CRC32: 0xEAA8473F (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x400004F6, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x078CA4459
    Duration PTS: 0x000F73140 (16200000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x0B (11), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000B
    CRC32: 0x045999F6 (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x400004F6, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x078CA4459
    Duration PTS: 0x000F73140 (16200000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x0B (11), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000B
    CRC32: 0x045999F6 (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1055 (0x041F)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x00000012, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x076284A7A
    Unique program id: 0x0001 (1), avail: 0x12 (18), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000012
    CRC32: 0x1ED64BDB (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1055 (0x041F)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x00000012, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x076284A7A
    Unique program id: 0x0001 (1), avail: 0x12 (18), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000012
    CRC32: 0x1ED64BDB (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1055 (0x041F)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x00000012, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x076284A7A
    Unique program id: 0x0001 (1), avail: 0x12 (18), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000012
    CRC32: 0x1ED64BDB (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1045 (0x0415)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x00000016, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x07AA76812
    Duration PTS: 0x00083D600 (8640000), auto return: yes
    Unique program id: 0x000A (10), avail: 0x08 (8), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000008
    CRC32: 0x43101852 (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1045 (0x0415)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x00000017, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x07AAFA572
    Duration PTS: 0x0007B98A0 (8100000), auto return: yes
    Unique program id: 0x0001 (1), avail: 0x08 (8), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000008
    CRC32: 0x4ADEEB3E (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x400004F6, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x079C17599
    Unique program id: 0x0001 (1), avail: 0x0B (11), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000B
    CRC32: 0x2E655951 (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x400004F6, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x079C17599
    Unique program id: 0x0001 (1), avail: 0x0B (11), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000B
    CRC32: 0x2E655951 (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1045 (0x0415)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x00000018, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x07B2B3E12
    Unique program id: 0x0001 (1), avail: 0x08 (8), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000008
    CRC32: 0xD497DA82 (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x400004F7, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x07E2772B9
    Duration PTS: 0x000F73140 (16200000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x0C (12), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000C
    CRC32: 0xF85CCA9D (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 50 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 20 bytes
    Splice event id: 0x400004F7, cancel: 0
    Out of network: yes, program splice: yes, duration set: yes, immediate: no
    Time PTS: 0x07E2772B9
    Duration PTS: 0x000F73140 (16200000), auto return: no
    Unique program id: 0x0001 (1), avail: 0x0C (12), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000C
    CRC32: 0xF85CCA9D (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x400004F7, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x07F1EA3F9
    Unique program id: 0x0001 (1), avail: 0x0C (12), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000C
    CRC32: 0x33F3C14D (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1015 (0x03F7)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x400004F7, cancel: 0
    Out of network: no, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x07F1EA3F9
    Unique program id: 0x0001 (1), avail: 0x0C (12), avails expected: 255
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x0000000C
    CRC32: 0x33F3C14D (OK)

* SCTE 35 Splice Information, TID 252 (0xFC), PID 1035 (0x040B)
  Short section, total size: 45 bytes
  - Section 0:
    Protocol version: 0x00 (0)
    Encryption: none
    PTS adjustment: 0x000000000 (0)
    CW index: 0xFF (255), tier: 0xFFF (4095)
    Command type: 0x05 (SpliceInsert), size: 15 bytes
    Splice event id: 0x0000163A, cancel: 0
    Out of network: yes, program splice: yes, duration set: no, immediate: no
    Time PTS: 0x07F0C4F73
    Unique program id: 0x0000 (0), avail: 0x00 (0), avails expected: 0
    - Descriptor 0: SCTE 35 Avail (0x00, 0), 8 bytes
      Identifier: 0x43554549 ("CUEI")
      Provider id: 0x00000000
    CRC32: 0xD7165C79 (OK)

Others

https://docs.aws.amazon.com/medialive/latest/ug/schedule-fields-for-splice_insert.html