scte 35 decoder ring

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  • License: MIT License
  • Author: fu-corp
  • Requires: Python >=3.6
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Project description

threefive

SCTE35 Decoder

  • Parse SCTE 35 messages from Mpeg Transport Streams
  • Parse SCTE 35 messages encoded in Base64, Binary, or Hex.

2019 Specification

Splice Commands

  • Splice Null
  • Splice Schedule (lightly tested)
  • Splice Insert
  • Time Signal
  • Bandwidth Reservation (lightly tested)

Splice Descriptors

  • DTMF Descriptor
  • Segmentation Descriptor (mostly)
  • segmentation upid (some)
  • segmentation type and messages
  • Time Descriptor
  • Audio Descriptor

Dependencies

  • Python 3
  • bitstring

Install

pip install threefive

Collecting threefive
  Downloading https://files.pythonhosted.org/packages/c7/dd/fcef1a0529659be65dd5bee641fc715db0d559531faf4b4ddd59b239d60a/threefive-1.1.59-py3-none-any.whl
Requirement already satisfied: bitstring in /usr/lib/python3.7/site-packages (from threefive) (3.1.6)
Installing collected packages: threefive
Successfully installed threefive-1.1.59

Run

Parse mpegts file

  • Handled by the Stream class (in threefive/stream.py )
# Parse the file '/home/a/mpegwithscte35.ts' for SCTE 35 messages
# show_null=False hides splice null messages


>>> import threefive

>>> scte35_stream=threefive.Stream('/home/a/mpegwithscte35.ts',show_null=False)

[ Splice Info Section ]
table_id : 0xfc
section_syntax_indicator : False
private : False
section_length : 47
protocol_version : 0
encrypted_packet : False
encryption_algorithm : 0
pts_adjustment : 0.000000
cw_index : 0x0
tier : 0xfff
splice_command_length : 4095
splice_command_type : 5
descriptor_loop_length : 10
crc : 0x10fa4d9e

[ Splice Command ]
splice_type : 5
name : Splice Insert
splice_event_id : 662
splice_event_cancel_indicator : False
out_of_network_indicator : True
program_splice_flag : True
duration_flag : True
splice_immediate_flag : False
time_specified_flag : True
pts_time : 89742.161689
break_auto_return : False
break_duration : 242.000000
unique_program_id : 1
avail_num : 0
avail_expected : 0

[ Splice Descriptor  0  ]
name : Avail Descriptor
splice_descriptor_tag : 0
descriptor_length : 8
identifier : CUEI
provider_avail_id : 0

[ Splice Info Section ]
table_id : 0xfc
section_syntax_indicator : False
private : False
section_length : 42
protocol_version : 0
encrypted_packet : False
encryption_algorithm : 0
pts_adjustment : 0.000000
cw_index : 0x0
tier : 0xfff
splice_command_length : 4095
splice_command_type : 5
descriptor_loop_length : 10
crc : 0x6e33321e

[ Splice Command ]
splice_type : 5
name : Splice Insert
splice_event_id : 662
splice_event_cancel_indicator : False
out_of_network_indicator : False
program_splice_flag : True
duration_flag : False
splice_immediate_flag : False
time_specified_flag : True
pts_time : 89984.161689
unique_program_id : 1
avail_num : 0
avail_expected : 0

[ Splice Descriptor  0  ]
name : Avail Descriptor
splice_descriptor_tag : 0
descriptor_length : 8
identifier : CUEI
provider_avail_id : 0


>>>

Parse binary encoded messages from a file

  • Handled by the Stream class (in threefive/stream.py )
>>> import threefive
>>> stuff=threefive.Stream('/mnt/build/file.bin')

[ Splice Info Section ]
table_id : 0xfc
section_syntax_indicator : False
private : False
section_length : 78
protocol_version : 0
encrypted_packet : False
encryption_algorithm : 0
pts_adjustment : 0.000000
cw_index : 0x0
tier : 0xfff
splice_command_length : 5
splice_command_type : 6
descriptor_loop_length : 60
crc : 0x54590000

[ Splice Command ]
splice_type : 6
name : Time Signal
time_specified_flag : True
pts_time : 0.555556

[ Splice Descriptor  0  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 58
identifier : CUEI
segmentation_event_id : 0x3
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : True
delivery_not_restricted_flag : True
segmentation_duration : 0.000178
segmentation_upid_type : 12
segmentation_type_id : 38
segmentation_message : Closing Credit Start

>>>

Parse base64 encoded messages

  • Handled by the Splice class (in threefive/splice.py )
>>> import threefive
>>> mesg='/DBhAAAAAAAA///wBQb+qM1E7QBLAhdDVUVJSAAArX+fCAgAAAAALLLXnTUCAAIXQ1VFSUg/nwgIAAAAACyy150RAAACF0NVRUlIAAAnf58ICAAAAAAsstezEAAAihiGnw=='
>>> splice=threefive.Splice(mesg)
>>> splice.show_command()

[ Splice Command ]
splice_type : 6
name : Time Signal
time_specified_flag : True
pts_time : 31466.942367

Parse hex encoded messages

  • Handled by the Splice class (in threefive/splice.py )
>>> import threefive
>>> mesg= '0xfc3061000000000000fffff00506fea8cd44ed004b021743554549480000ad7f9
f0808000000002cb2d79d350200021743554549480000267f9f0808000000002cb2d79d110000021
743554549480000277f9f0808000000002cb2d7b31000008a18869f'

>>> h_splice=threefive.Splice(mesg)
>>> h_splice.show_info_section() 

[ Splice Info Section ]
table_id : 0xfc
section_syntax_indicator : False
private : False
section_length : 97
protocol_version : 0
encrypted_packet : False
encryption_algorithm : 0
pts_adjustment : 0.000000
cw_index : 0xff
tier : 0xfff
splice_command_length : 5
splice_command_type : 6
descriptor_loop_length : 75
crc : 0x8a18869f

Splice Methods

threefive.Splice.show_info_section()

>>> import threefive
>>> mesg='/DBhAAAAAAAA///wBQb+qM1E7QBLAhdDVUVJSAAArX+fCAgAAAAALLLXnTUCAAIXQ1VFSUgAACZ/nwgIAAAAACyy150RAAACF0NVRUlIAAAnf58ICAAAAAAsstezEAAAihiGnw=='
>>> splice=threefive.Splice(mesg)
>>> splice.show_info_section()

[ Splice Info Section ]
table_id : 0xfc
section_syntax_indicator : False
private : False
reserved : 3
section_length : 97
protocol_version : 0
encrypted_packet : False
encryption_algorithm : 0
pts_adjustment : 0
cw_index : 0xff
tier : 0xfff
splice_command_length : 5
splice_command_type : 6
descriptor_loop_length : 75

threefive.Splice.show_command()

>>> import threefive
>>> mesg='/DBhAAAAAAAA///wBQb+qM1E7QBLAhdDVUVJSAAArX+fCAgAAAAALLLXnTUCAAIXQ1VFSUgAACZ/nwgIAAAAACyy150RAAACF0NVRUlIAAAnf58ICAAAAAAsstezEAAAihiGnw=='
>>> splice=threefive.Splice(mesg)
>>> splice.show_command()

[ Splice Command ]
splice_type : 6
name : Time Signal
time_specified_flag : True
pts_time : 31466.942367

threefive.Splice.show_descriptors()

>> import threefive
>>> mesg='/DBhAAAAAAAA///wBQb+qM1E7QBLAhdDVUVJSAAArX+fCAgAAAAALLLXnTUCAAIXQ1VFSUgAACZ/nwgIAAAAACyy150RAAACF0NVRUlIAAAnf58ICAAAAAAsstezEAAAihiGnw=='
>>> stuff=threefive.Splice(mesg)
>>> stuff.show_descriptors()

[ Splice Descriptor  0  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 23
identifier : CUEI
segmentation_event_id : 0x480000ad
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : False
delivery_not_restricted_flag : False
web_delivery_allowed_flag : True
no_regional_blackout_flag : True
archive_allowed_flag : True
device_restrictions : 0x3
segmentation_upid_type : 8
segmentation_upid_length : 8
turner_identifier : 0x000000002cb2d79d
segmentation_type_id : 53
segmentation_type : Provider Placement Opportunity End
segment_num : 2
segments_expected : 0

[ Splice Descriptor  1  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 23
identifier : CUEI
segmentation_event_id : 0x48000026
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : False
delivery_not_restricted_flag : False
web_delivery_allowed_flag : True
no_regional_blackout_flag : True
archive_allowed_flag : True
device_restrictions : 0x3
segmentation_upid_type : 8
segmentation_upid_length : 8
turner_identifier : 0x000000002cb2d79d
segmentation_type_id : 17
segmentation_type : Program End
segment_num : 0
segments_expected : 0

[ Splice Descriptor  2  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 23
identifier : CUEI
segmentation_event_id : 0x48000027
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : False
delivery_not_restricted_flag : False
web_delivery_allowed_flag : True
no_regional_blackout_flag : True
archive_allowed_flag : True
device_restrictions : 0x3
segmentation_upid_type : 8
segmentation_upid_length : 8
turner_identifier : 0x000000002cb2d7b3
segmentation_type_id : 16
segmentation_type : Program Start
segment_num : 0
segments_expected : 0

threefive.Splice.show()

Shows all data

>>> import threefive                
>>> mesg='/DBIAAAAAAAA///wBQb+ky44CwAyAhdDVUVJSAAACn+fCAgAAAAALKCh4xgAAAIX
Q1VFSUgAAAl/nwgIAAAAACygoYoRAAC0IX6w')
>>> fu=threefive.Splice(mesg)
>>> fu.show()


[ Splice Info Section ]
table_id : 0xfc
section_syntax_indicator : False
private : False
section_length : 97
protocol_version : 0
encrypted_packet : False
encryption_algorithm : 0
pts_adjustment : 0.000000
cw_index : 0xff
tier : 0xfff
splice_command_length : 5
splice_command_type : 6
descriptor_loop_length : 75
crc : 0x8a18869f

[ Splice Command ]
splice_type : 6
name : Time Signal
time_specified_flag : True
pts_time : 31466.942367

[ Splice Descriptor  0  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 23
identifier : CUEI
segmentation_event_id : 0x480000ad
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : False
delivery_not_restricted_flag : False
web_delivery_allowed_flag : True
no_regional_blackout_flag : True
archive_allowed_flag : True
device_restrictions : 0x3
segmentation_upid_type : 8
segmentation_upid_length : 8
turner_identifier : 0x000000002cb2d79d
segmentation_type_id : 53
segmentation_type : Provider Placement Opportunity End
segment_num : 2
segments_expected : 0

[ Splice Descriptor  1  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 23
identifier : CUEI
segmentation_event_id : 0x48000026
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : False
delivery_not_restricted_flag : False
web_delivery_allowed_flag : True
no_regional_blackout_flag : True
archive_allowed_flag : True
device_restrictions : 0x3
segmentation_upid_type : 8
segmentation_upid_length : 8
turner_identifier : 0x000000002cb2d79d
segmentation_type_id : 17
segmentation_type : Program End
segment_num : 0
segments_expected : 0

[ Splice Descriptor  2  ]
name : Segmentation Descriptor
splice_descriptor_tag : 2
descriptor_length : 23
identifier : CUEI
segmentation_event_id : 0x48000027
segmentation_event_cancel_indicator : False
program_segmentation_flag : True
segmentation_duration_flag : False
delivery_not_restricted_flag : False
web_delivery_allowed_flag : True
no_regional_blackout_flag : True
archive_allowed_flag : True
device_restrictions : 0x3
segmentation_upid_type : 8
segmentation_upid_length : 8
turner_identifier : 0x000000002cb2d7b3
segmentation_type_id : 16
segmentation_type : Program Start
segment_num : 0
segments_expected : 0

Read individual values

import threefive
mesg='/DAvAAAAAAAA///wFAVIAACPf+/+c2nALv4AUsz1AAAAAAAKAAhDVUVJAAABNWLbowo='
scte_data=threefive.Splice(mesg)

>>> scte_data.command.name    
'Splice Insert'
>>> scte_data.command.splice_immediate_flag
False
>>> scte_data.command.pts_time
'21514.559089'
>>> scte_data.command.break_duration
'60.293567'

Project details

Verified details

These details have been verified by PyPI
Maintainers
Avatar for fu-corp from gravatar.com fu-corp

Unverified details

These details have not been verified by PyPI
Project links
Meta
  • License: MIT License
  • Author: fu-corp
  • Requires: Python >=3.6
Classifiers

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2.3.77 yanked

Reason this release was yanked:

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This version

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