Run `FFmpegFixupM3u8PP` for live-streams if needed

Closes #3669

diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
index 3946311cd5c55d353cfa518dabd0b7084568a1a4..de34b8bd7c41516a1596a6018919fb278b6e78ed 100644 (file)
--- a/yt_dlp/YoutubeDL.py
+++ b/yt_dlp/YoutubeDL.py
@@ -3194,7 +3194,8 @@ def ffmpeg_fixup(cndn, msg, cls):
                     downloader = downloader.__name__ if downloader else None
 
                     if info_dict.get('requested_formats') is None:  # Not necessary if doing merger
-                        ffmpeg_fixup(downloader == 'HlsFD',
+                        live_fixup = info_dict.get('is_live') and not self.params.get('hls_use_mpegts')
+                        ffmpeg_fixup(downloader == 'HlsFD' or live_fixup,
                                      'Possible MPEG-TS in MP4 container or malformed AAC timestamps',
                                      FFmpegFixupM3u8PP)
                         ffmpeg_fixup(info_dict.get('is_live') and downloader == 'DashSegmentsFD',