You can then open this file in Subler, turn off any audio conversion features, and add whatever metadata, subtitles, artwork etc you want to the file. This copies the video, converts the audio to a stereo AAC track as the first audio track and copies the AC3 audio as a second audio track without alteration. The command to take an MKV with a single video track and a single AC3 audio track is as follows: ffmpeg -i nameofmkv.mkv -map 0:v -c:v copy -map 0:a -strict experimental -c:a:0 aac -ac 2 -b:a:0 256k -map 0:a -c:a:1 copy nameofm4v.m4v It will only pass the AC3 track directly through HDMI or optical to a receiver. Additionally, an Apple TV will not attempt to downmix AC3 audio to stereo, which is why the extra AAC audio is needed. mp4) file with a video track, an AAC stereo track and a AC3 surround track and the AAC track must come before the AC3 track:ĪC3 audio will not work if there is no AAC track ahead of it in the file. I'll leave you to Google how to install it (hint: 'ffmpeg install youroperatingsystem') but it's the best tool for this job.Īpple TV's are remarkably fiddly in this department. I still love Plex, but now I definitely love it a bit less.Use ffmpeg. Kind of a glaring oversight/fail, if you ask me. I've been using MP4's to embed all that, but apparently that's no longer an option if I want forced subtitles without burning them in. The first time that happened, I lost a TON of tweaks and changes made within Plex to the descriptions, poster art, etc. On more than 1 occasion, I've had computer problems that resulted in losing my Plex library (not my video files, just the library data). There's still a problem with my movies, which are all MP4 files. My TV shows are mostly MKV files, and for those that are MP4's with forced subtitles, I can use MKVTools to remux it to an MKV file and then use MKVToolNix to add the forced subtitles and set the subtitle Forced flag to Yes (for some reason, MKVTools drops subtitles when coming from an MP4 file, I have no idea why). This gets me at least partway to where I want to be. With MP4 files it's the reverse-Plex will recognize all the other stored metadata (poster art, descriptions, movie title, etc) but completely ignores the forced flag for subtitles. The key difference turned out to be the container type.Īpparently, with MKV files, Plex will recognize the forced subtitle flag but it ignores pretty much all other built-in metadata. In the case of this lone file that works, it's one I got from elsewhere and didn't personally do anything to mark it as forced, so I have no idea what's actually different about it. VLC respects the forced setting from Subler, but Plex seems to ignore it. and Subler has a setting specifically to mark a subtitle track as forced. I'm already using Subler to modify a bunch of metadata which Plex picks up, like the descriptions, poster art, etc. I do video editing and sound design by trade, so I know a thing or two about the technical side of how audio, video and subtitles work. to make it recognize all my other forced subtitles, so I can stop the nonsense of modifying the descriptions.įYI, I have a slew of apps for modifying files, metadata, remuxing, etc. So how in the world does it know that that subtitle track is forced? I want to know, because I'm more than willing to go back and modify subtitles, metadata, etc. But this one episode says "Forced" now, and it's not from anything I did. On the page with the episode description, toward the top where it shows Resolution (720p) and audio channels/codec (Stereo HE-ACC), it has a subtitle symbol on the end that's always said "Off" by default in the past. For a while now, every time I hit a TV show episode or a movie with forced subtitles, I'll make sure there's a forced subtitle track (where there's ONLY forced subtitles in that track), and I'll modify the episode/movie description to note there's forced subtitles so that I can know to turn them on later.īut today I just noticed that there's an episode of Daredevil (S03E04) where Plex automatically recognized the subtitles were there. Plex, as far as I've seen in the past, has never automatically recognized forced subtitles. Subler will run natively on Apple Silicon. Fixes a regression that prevented Atmos tracks from being properly signaled. Subler 1.6.7 Improves AppleTV TV Shows seasons matching. Fixes an issue that prevented setting the 9-16-9 color tag. How in the world do you make Plex automatically recognize that a file contains Forced subtitles? Subler 1.6.8 Improves AppleTV TV Shows seasons matching. Edit: Just to be clear, everything I'm dealing with involves internal subtitle streams, NOT external subtitle files.
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