Change #264208

Comments

avformat/hls: fix seeking in EVENT playlists that start mid-stream
HLS EVENT playlists (e.g. Twitch VODs) are seekable but not finished,
so live_start_index causes playback to begin near the end. The first
packet's DTS then becomes first_timestamp, creating a wrong mapping
between timestamps and segments.

Fix this by subtracting the cumulative duration of skipped segments from
first_timestamp so it reflects the true start of the playlist.

Also set per-stream start_time from first_timestamp so correct time is
reported, reset pts_wrap_reference on seek to prevent bogus wrap
arounds.

Signed-off-by: Kacper Michajłow <kasper93@gmail.com>

Changed files

• libavformat/hls.c