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24th September 2022, 10:50 | #1 | Link |
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Concatenate multi-part BluRay rips or not?
I like containers like MKV for the possibility of having everything in one file (i.e., audio tracks, subs, etc.).
I’m currently ripping my The Hobbit: An Unexpected Journey 3D BluRays for use with KODI and wonder how you would advise on how to handle movies that are split into two BluRays (two MKVs now, in my case). The main movie comes on two BluRays, thus splits into two parts:
I’m tempted to (demux-) concatenate these two into one large (~62 GB) file using ffmpeg, since the movie will almost always be watched as a whole. Would you advise to do that, or keep the parts separate and trust KODI to play both parts using the same selected audio and subtitle settings? SView, for instance, plays the two parts just fine but switches back to the file defaults for audio & subs when part 2 begins. |
26th September 2022, 19:30 | #2 | Link |
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I joined all three 3D Hobbit movies together with MKVtoolnix, standard and extended editions. I also cut off the black frames from the start of the 2nd parts* as well as a few of the black frames from from the first part. The resulting files play fine in 2D on my PC and 3D via my Zidoo Z9X despite the warnings about joining them in MKVtoolnix.
*Note that the Battle of the 5 Armies didn't have a keyframe in the right spot (first frame out of black) in the 2nd part (either edition) so you can't eliminate all the black frames for them. Desolation of Smaug (non Extended) I was able to eliminate all the black frames (on both sides). The other two movies go black at the end of the first part, and then the audio fades out. For those I left the black frames until the audio had faded out. Last edited by Stereodude; 26th September 2022 at 19:34. |
27th September 2022, 10:17 | #3 | Link |
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Thanks for feedback @Stereodude! I eventually also opted for using MKVToolNix to concatenate the parts—much easier than using ffmpeg manually.
Just out of interest: What tool(s) did you use to cut the black frames? They could have done a better job with those, I think. (And thanks for the warning re "Battle of the 5 Armies"—this is the next one to be ripped ;-))' |
27th September 2022, 21:15 | #4 | Link | |
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Also, it seems like it should be possible to do it all in one step with no intermediate files. Add both halves of the movie as the source and only include the frames you want in the output, like 1-25423, +27654-54323 (for example), but I did not have good luck with that. I had a spreadsheet trying to figure out the frame numbers and all that, but it just didn't seem to work. After wasting a bunch of time with that I just trimmed each part first to intermediate files, then combined those trimmed intermediate files. Now I'm learning that mkv files don't correctly handle subtitles for 3D content. The subtitles can't have a 3D plane from the MVC file assigned to them in the mkv. Granted, subtitles aren't used for The Hobbit movies, like they are in Avatar or some other 3D movies, but I'm currently rethinking if I want to use .mkv for 3D movies or not. |
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29th September 2022, 13:33 | #5 | Link | |
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I’m learning new stuff about this incredible tool everyday, thanks!
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Hint: Newer MakeMKV versions store a tag for each subtitle when ripping, denoting the plane it belongs to. Don’t delete these in case you want to post-process the rip (like with BD3D2MK3D)! Cost me several hours of re-ripping to find out… Video encoding and muxing is a bit of black art, it seems. Looks like they keep the plane info for the 3D subtitles in the MVC stream, but the info can be extracted using (Windows) tools like OFSExtractor or MVCPlanes2OFS. Both generate .ofs files, but I wouldn’t know what to do with these. It seems you can not assign new subtitle/plane info into the MVC, only read the existing. FYI, Mediainfo shows me these subtitles for "The Hobbit - The Battle of the Five Armies" (German Blu-Ray), and all work and "sit in the right plane" when playing the MKV through KODI on my TV: Code:
Text #1 ID : 6 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : English Default : No Forced : No Text #2 ID : 7 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : German Default : No Forced : No Text #3 ID : 8 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : Danish Default : No Forced : No Text #4 ID : 9 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : Finnish Default : No Forced : No Text #5 ID : 10 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : Icelandic Default : No Forced : No Text #6 ID : 11 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : Norwegian Default : No Forced : No Text #7 ID : 12 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : Portuguese Default : No Forced : No Text #8 ID : 13 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : Swedish Default : No Forced : No Text #9 ID : 14 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : German Default : No Forced : Yes Last edited by Moonbase; 29th September 2022 at 13:37. |
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29th September 2022, 19:32 | #6 | Link | |
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You only need to assign the PGS subtitles to a plane in the .mvc. You don't need the OFS or anything else for a straight rip. |
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30th September 2022, 00:22 | #7 | Link |
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That’s interesting, I always assumed the depth info is stored either in the MVC or the PGS. Unfortunately, I’m Linux-centric and thus only have MakeMKV (paid version) to rip to MKV, so no ISO rips. Maybe the decision to only keep MKVs wasn’t that clever, after all. ;-) Looking forward to getting a Vero 4K+, which is supposed to play the "3d.mvc.mkv" (original FP format) files.
Do you have a good suggestion for a 3D Blu-Ray where the depth changes are very apparent? Maybe I just missed it in the past and they actually were all at one depth… But I seem to remember I saw it changing once, only can’t remember which movie it was, and if I played an ISO or a MKV. Last edited by Moonbase; 30th September 2022 at 00:25. |
30th September 2022, 10:05 | #8 | Link | |
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You might wanna try muxing to BD ISO with tsMuxer. |
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30th September 2022, 17:34 | #9 | Link | |
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