- Remove avoid_negative_ts from movflags (not a movflag option) - Add explicit -avoid_negative_ts make_zero -start_at_zero for progressive downloads - Ensures timestamps always start at 0 for proper seeking in strict players
- Remove avoid_negative_ts from movflags (not a movflag option) - Add explicit -avoid_negative_ts make_zero -start_at_zero for progressive downloads - Ensures timestamps always start at 0 for proper seeking in strict players