2025-03-31, 09:16 PM
I remember when 10.10.0 released, it was a huge update and the first to do remuxing of DV content for WebOS devices. The default setting was fMP4 enabled so all DV content would remux to mp4. The fast forwarding issue was apparent right away, but there were also subtitle sync issues that were unpredictable and hard to notice, but surely present. Sometimes just pausing and resuming would get subtitles to play instantly, while video and audio would play a few seconds later, getting out of sync. If you were to try to continue watching a movie, it would most likely fail to play all together, or play subtitles right away, video and audio a few seconds later so they get out of sync again. They are still present in current build, as well as your custom build, and probably related to WebOs and how it handles mp4. After a few versions, the fMP4 was disabled by default so we use .ts now, which is much more stable on WebOs.
I have seen reports of people claiming that Profile 8 is broken even with using .ts container, which I can't replicate myself. I can confirm that it doesn't work with .mp4, but for me it does work well with .ts. There were a handful of times when i got a corrupted .mkv file with Profile 8, that would seem all right and play on windows, but not play on LG C2 even when converted manually to .ts or .m2ts and played from a usb drive. They would play when manually converted to mp4 for some time, but then TV would shut off by itself while playing. I downloaded the files from a different source and had no issues using Jellyfin again. So I guess that might be what is behind those claims, but again, a regular DV P8 file in mkv plays fine on LG C2 when remuxed to .ts.
I have seen reports of people claiming that Profile 8 is broken even with using .ts container, which I can't replicate myself. I can confirm that it doesn't work with .mp4, but for me it does work well with .ts. There were a handful of times when i got a corrupted .mkv file with Profile 8, that would seem all right and play on windows, but not play on LG C2 even when converted manually to .ts or .m2ts and played from a usb drive. They would play when manually converted to mp4 for some time, but then TV would shut off by itself while playing. I downloaded the files from a different source and had no issues using Jellyfin again. So I guess that might be what is behind those claims, but again, a regular DV P8 file in mkv plays fine on LG C2 when remuxed to .ts.