fix(HLS): Fix live playlist update when using no LL in a LL stream

[avelad]

This happens because the last segment in an LL stream may not be complete and may not have EXTINF

[github-actions]

Incremental code coverage: 100.00%

[avelad]

Example:

#EXTM3U
#EXT-X-VERSION:8
#EXT-X-TARGETDURATION:2
#EXT-X-SERVER-CONTROL:CAN-BLOCK-RELOAD=YES,HOLD-BACK=6.000,PART-HOLD-BACK=1.440
#EXT-X-PART-INF:PART-TARGET=0.48
#EXT-X-MEDIA-SEQUENCE:878437174
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-MAP:URI="test_dolby-hvc1_1000000=1-init.mp4"
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:06.480000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266324-dur=96-seq=878437174.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:08.400000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266420-dur=96-seq=878437175.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:10.320000Z
#EXTINF:0.34,
test_dolby-hvc1_1000000=1-begin=84328266516-dur=17-seq=878437176.m4s
#EXT-X-CUE-OUT:DURATION=30.000,ID=1,SCTE35="/DAlAAAAAAAAAP/wFAUAAAABf+/+h+35aP4AKTLgAAEAAAAAJhwTYg=="
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:10.660000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266533-dur=96-seq=878437177.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:12.580000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266629-dur=96-seq=878437178.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:14.500000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266725-dur=96-seq=878437179.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:16.420000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266821-dur=96-seq=878437180.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:18.340000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328266917-dur=96-seq=878437181.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:20.260000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267013-dur=96-seq=878437182.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:22.180000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267109-dur=96-seq=878437183.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:24.100000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267205-dur=96-seq=878437184.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:26.020000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267301-dur=96-seq=878437185.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:27.940000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267397-dur=96-seq=878437186.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:29.860000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267493-dur=96-seq=878437187.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:31.780000Z
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267589-dur=96-seq=878437188.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:33.700000Z
#EXT-X-PART:DURATION=0.48,INDEPENDENT=YES,URI="test_dolby-hvc1_1000000=1-begin=84328267685-seq=878437189-part=84328267685.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267685-seq=878437189-part=84328267709.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267685-seq=878437189-part=84328267733.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267685-seq=878437189-part=84328267757.m4s"
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267685-dur=96-seq=878437189.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:35.620000Z
#EXT-X-PART:DURATION=0.48,INDEPENDENT=YES,URI="test_dolby-hvc1_1000000=1-begin=84328267781-seq=878437190-part=84328267781.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267781-seq=878437190-part=84328267805.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267781-seq=878437190-part=84328267829.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267781-seq=878437190-part=84328267853.m4s"
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267781-dur=96-seq=878437190.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:37.540000Z
#EXT-X-PART:DURATION=0.48,INDEPENDENT=YES,URI="test_dolby-hvc1_1000000=1-begin=84328267877-seq=878437191-part=84328267877.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267877-seq=878437191-part=84328267901.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267877-seq=878437191-part=84328267925.m4s"
#EXT-X-PART:DURATION=0.48,URI="test_dolby-hvc1_1000000=1-begin=84328267877-seq=878437191-part=84328267949.m4s"
#EXTINF:1.92,
test_dolby-hvc1_1000000=1-begin=84328267877-dur=96-seq=878437191.m4s
#EXT-X-PROGRAM-DATE-TIME:2023-06-12T10:22:39.460000Z
#EXT-X-PART:DURATION=0.48,INDEPENDENT=YES,URI="test_dolby-hvc1_1000000=1-begin=84328267973-seq=878437192-part=84328267973.m4s"
#EXT-X-PRELOAD-HINT:TYPE=PART,URI="test_dolby-hvc1_1000000=1-begin=84328267973-seq=878437192-part=84328267997.m4s"
#EXT-X-RENDITION-REPORT:URI="test_dolby-evte_0=2.m3u8",LAST-MSN=878157655,LAST-PART=0