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Fix output for example LL-HLS manifest
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@bbayles @mauricioabreu
bbayles authored and mauricioabreu committed Jun 29, 2024
1 parent 48893fd commit 54f5288
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Showing 3 changed files with 132 additions and 9 deletions.
11 changes: 2 additions & 9 deletions m3u8/model.py
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Original file line number Diff line number Diff line change
Expand Up @@ -598,15 +598,8 @@ def dumps(self, last_segment, timespec="milliseconds", infspec="auto"):
output.append(str(self.key))
output.append("\n")

if last_segment and self.init_section != last_segment.init_section:
if not self.init_section:
raise MalformedPlaylistError(
"init section can't be None if previous is not None"
)
output.append(str(self.init_section))
output.append("\n")
else:
if self.init_section and last_segment is None:
if self.init_section:
if (not last_segment) or (self.init_section != last_segment.init_section):
output.append(str(self.init_section))
output.append("\n")

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61 changes: 61 additions & 0 deletions tests/playlists.py
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Original file line number Diff line number Diff line change
Expand Up @@ -962,6 +962,67 @@
http://str00.iptv.domain/7331/mpegts?token=longtokenhere
"""

LOW_LATENCY_PART_PLAYLIST = """\
#EXTM3U
#EXT-X-TARGETDURATION:4
#EXT-X-VERSION:6
#EXT-X-SERVER-CONTROL:CAN-BLOCK-RELOAD=YES,PART-HOLD-BACK=1.0,CAN-SKIP-UNTIL=24.0
#EXT-X-PART-INF:PART-TARGET=0.33334
#EXT-X-MEDIA-SEQUENCE:264
#EXT-X-PROGRAM-DATE-TIME:2019-02-14T02:13:28.106Z
#EXT-X-MAP:URI="init.mp4"
#EXTINF:4.00008,
fileSequence264.mp4
#EXTINF:4.00008,
fileSequence265.mp4
#EXTINF:4.00008,
fileSequence266.mp4
#EXTINF:4.00008,
fileSequence267.mp4
#EXTINF:4.00008,
fileSequence268.mp4
#EXTINF:4.00008,
fileSequence269.mp4
#EXTINF:4.00008,
fileSequence270.mp4
#EXT-X-PART:DURATION=0.33334,URI="filePart271.0.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.1.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.2.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.3.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.4.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart271.5.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.6.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.7.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.8.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart271.9.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.10.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.11.mp4"
#EXTINF:4.00008,
fileSequence271.mp4
#EXT-X-PROGRAM-DATE-TIME:2019-02-14T02:14:00.106Z
#EXT-X-PART:DURATION=0.33334,URI="filePart272.a.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.b.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.c.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.d.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.e.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.f.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart272.g.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.h.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.i.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.j.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.k.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.l.mp4"
#EXTINF:4.00008,
fileSequence272.mp4
#EXT-X-PART:DURATION=0.33334,URI="filePart273.0.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart273.1.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart273.2.mp4"
#EXT-X-PRELOAD-HINT:TYPE=PART,URI="filePart273.3.mp4"
#EXT-X-RENDITION-REPORT:URI="../1M/waitForMSN.php",LAST-MSN=273,LAST-PART=2
#EXT-X-RENDITION-REPORT:URI="../4M/waitForMSN.php",LAST-MSN=273,LAST-PART=1
"""

LOW_LATENCY_DELTA_UPDATE_PLAYLIST = """#EXTM3U
# Following the example above, this playlist is a response to: GET https://example.com/2M/waitForMSN.php?_HLS_msn=273&_HLS_part=3&_HLS_report=../1M/waitForMSN.php&_HLS_report=../4M/waitForMSN.php&_HLS_skip=YES
#EXT-X-TARGETDURATION:4
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69 changes: 69 additions & 0 deletions tests/test_model.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@

import datetime
import os
import textwrap

import playlists
import pytest
Expand Down Expand Up @@ -1607,6 +1608,74 @@ def test_segment_media_sequence():
assert [s.media_sequence for s in obj.segments] == [2680, 2681, 2682]


def test_low_latency_output():
obj = m3u8.M3U8(playlists.LOW_LATENCY_PART_PLAYLIST)
actual = obj.dumps()
expected = textwrap.dedent(
"""\
#EXTM3U
#EXT-X-MEDIA-SEQUENCE:264
#EXT-X-VERSION:6
#EXT-X-TARGETDURATION:4
#EXT-X-SERVER-CONTROL:CAN-BLOCK-RELOAD=YES,PART-HOLD-BACK=1,CAN-SKIP-UNTIL=24
#EXT-X-PART-INF:PART-TARGET=0.33334
#EXT-X-MAP:URI="init.mp4"
#EXT-X-PROGRAM-DATE-TIME:2019-02-14T02:13:28.106+00:00
#EXTINF:4.00008,
fileSequence264.mp4
#EXTINF:4.00008,
fileSequence265.mp4
#EXTINF:4.00008,
fileSequence266.mp4
#EXTINF:4.00008,
fileSequence267.mp4
#EXTINF:4.00008,
fileSequence268.mp4
#EXTINF:4.00008,
fileSequence269.mp4
#EXTINF:4.00008,
fileSequence270.mp4
#EXT-X-PART:DURATION=0.33334,URI="filePart271.0.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.1.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.2.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.3.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.4.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart271.5.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.6.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.7.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.8.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart271.9.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.10.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart271.11.mp4"
#EXTINF:4.00008,
fileSequence271.mp4
#EXT-X-PROGRAM-DATE-TIME:2019-02-14T02:14:00.106+00:00
#EXT-X-PART:DURATION=0.33334,URI="filePart272.a.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.b.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.c.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.d.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.e.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.f.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart272.g.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.h.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.i.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.j.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.k.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart272.l.mp4"
#EXTINF:4.00008,
fileSequence272.mp4
#EXT-X-PART:DURATION=0.33334,URI="filePart273.0.mp4",INDEPENDENT=YES
#EXT-X-PART:DURATION=0.33334,URI="filePart273.1.mp4"
#EXT-X-PART:DURATION=0.33334,URI="filePart273.2.mp4"
#EXT-X-PRELOAD-HINT:TYPE=PART,URI="filePart273.3.mp4"
#EXT-X-RENDITION-REPORT:URI="../1M/waitForMSN.php",LAST-MSN=273,LAST-PART=2
#EXT-X-RENDITION-REPORT:URI="../4M/waitForMSN.php",LAST-MSN=273,LAST-PART=1
"""
)
assert actual == expected


# custom asserts


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