Our HLS is a growing EVENT playlist with no ENDLIST, which hls.js reads as
LIVE. Its default startPosition (-1) then starts at the live edge and hugs it
(no forward buffer → rebuffer spinners), and on a resume/seek session the
segments' absolute PTS (-copyts, offset by the server's -ss) don't line up
with the live-edge timeline → 0 fragments load → permanent stall. The
seek-restart model makes fragment 0 the requested content position, so start
VOD-style at 0 and buffer forward. Fixes the transcode playback stall/rebuffer
found in 0.78.2 UAT.
peter
92adb593c8