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segment.md

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The threefive.Segment Class

The Segment class is a sub class of threefive.Stream,
designed for processing HLS segments.

  • Segment Class Specific Features:
    • Decryption of AES Encrypted MPEGTS.
    • Segment.cues a list of SCTE35 cues found in the segment.
  • Usage:
from threefive import Segment

uri = "https://example.com/1.ts"
seg = Segment(uri)
seg.decode()
  
# Make a list comprehension of cues found in the segment.
data = [cue.encode() for cue in seg.cues]
print(data)

['/DARAAAAAAAAAP/wAAAAAHpPv/8=',
'/DAvAAAAAAAAAP/wFAUAAAKWf+//4WoauH4BTFYgAAEAAAAKAAhDVUVJAAAAAOv1oqc=']
  • For aes encrypted files
from threefive import Segment

key = "https://example.com/aes.key"
IV=0x998C575D24F514AEC84EDC5CABCCDB81
uri = "https://example.com/aes-1.ts"

seg = Segment(uri,key_uri=key, iv=IV)
seg.decode()

# make a dictionary comprehension of pts and base64 encoded cues 

data = {cue.packet_data.pts:cue.encode() for cue in seg.cues}

print(data)

{ 89718.451333: '/DARAAAAAAAAAP/wAAAAAHpPv/8=',
89730.281789: '/DAvAAAAAAAAAP/wFAUAAAKWf+//4WoauH4BTFYgAAEAAAAKAAhDVUVJAAAAAOv1oqc='}