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[downloader/hls] Handle MPEG-2 PES timestamp overflow

This commit is contained in:
Felix S 2021-04-23 10:55:09 +02:00
parent 333217f43e
commit 15828bcf25
1 changed files with 10 additions and 1 deletions
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11
yt_dlp/downloader/hls.py
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@ -351,7 +351,16 @@ class HlsFD(FragmentFD):
# add the cue to the window
dedup_window.append(cue)
elif isinstance(block, webvtt.Magic):
# XXX: we do not handle MPEGTS overflow
# take care of MPEG PES timestamp overflow
if block.mpegts is None:
block.mpegts = 0
extra_state.setdefault('webvtt_mpegts_adjust', 0)
block.mpegts += extra_state['webvtt_mpegts_adjust'] << 33
if block.mpegts < extra_state.get('webvtt_mpegts_last', 0):
extra_state['webvtt_mpegts_adjust'] += 1
block.mpegts += 1 << 33
extra_state['webvtt_mpegts_last'] = block.mpegts
if frag_index == 1:
extra_state['webvtt_mpegts'] = block.mpegts or 0
extra_state['webvtt_local'] = block.local or 0