bluray_info - a set of utilities for accessing Blu-ray discsIncludes:* bluray_info - display information about a Blu-ray in multiple formats* bluray_copy - copy a playlist to a file or stdout* bluray_player - a small Blu-ray player using libmpv as backendRequirements:* libbluray >= 1.2.0* libaacs for decryption* libmpv for bluray_playerBuilding:  $ ./configure  $ make  $ make installIf you want to build bluray_player you will need libmpv (part of mpv package)installed on your system. Then, pass the build option to configure  $ ./configure --with-libmpvDocumentation:More documentation online:https://github.com/beandog/bluray_info/wikiEach program also has its own man page.Disc access:Decrypting Blu-ray discs is done through libaacs. Even with libaacs, youwill need a KEYDB.cfg file to bypass the encryption, and can be foundvarious places online. The best location ishttp://fvonline-db.bplaced.net/libaacs by default will look for KEYDB.cfg in ~/.config/aacs/ but with theseutilities, you can specify the path directly if you'd like.Sources:The source can be either a device name, a single file, or a directory. Theprogram will the default Blu-ray drive based on your OS if no path is given.  $ bluray_info  $ bluray_info /dev/sr0  $ bluray_info ~/Media/BD.ADVENTURE.iso  $ bluray_info ~/Media/BD.ADVENTURE/If you're going to do a lot of reads on a disc drive, I'd recommend mounting itso the access can be cached -- this is especially helpful when using / testingbluray_copy a lot to get chapters, playlists, etc.  # mount /dev/sr0 -o ro -t udf /mnt/blurayPlaylists:bluray_info uses libbluray to determine which playlist is the main one, anddoesn't calculate it itself.libbluray has two ways to display all playlists: there are 'relevant' oneswhere the library filters out any duplicates. However, the list of duplicatescan change across locations, filesystems, systems, etc. For that reason, ifyou are using this to script something or need consistent output, alwaysuse the '--duplicates' option to display all of the playlists, and not filterany of them out.bluray_info:Usage: bluray_info [bluray path] [options]See bluray_info --help for all options.bluray_info syntax and output was designed to closely resemble the awesomeprogram "lsdvd" (and later my own clone and other programs, from dvd_info).It will display as much relevant information I can get from the disc that isprovided by libbluray. Sadly, there's no way to display the number of channelsfor each audio stream right now, and so it will simply display the codec asDolby Digital (ac3), DTS, etc.bluray_copy:Usage: bluray_copy [bluray path] [options]See bluray_copy --help for all options.Blu-rays can store many codecs, and its container is an MPEG-2 transport stream.If you so desire, you can easily remux it into another container -- and get thefile much smaller by dropping audio tracks you don't want or need. I recommendusing mkvmerge (from mkvtoolnix) or ffmpeg.Two examples of remuxing the copied stream with only the first audio track:  $ mkvmerge -o bluray.mkv -a 1 bluray.m2ts  $ ffmpeg -i bluray.m2ts -map 0:0 -map 0:1 -codec copy bluray.mkvOr you can use bluray_copy to output to stdout and remux on the fly:  $ bluray_copy -o - | ffmpeg -i - -map 0:0 -map 0:1 -codec copy bluray.mkv  $ bluray_copy -o - | ffmpeg -i - -map 0:0 -map 0:1 -codec copy -f mpegts bluray.m2tsBlu-rays can hold a lot of stuff ... a lot. bluray_copy won't do anythingfancy like check to see if you have enough space to copy the title you want to,so be careful. It will simply quit if it can't write to the hard drive anymore.If no argument is given, bluray_copy will simply select the main playlist.The same notice is given here about 'duplicate' titles. Be sure to use the'--duplicates' option if you are using bluray_info output to list them. As ageneral rule, this option should be used with both programs -- it is the defaultto not to, as to stay consistent with 'ffmpeg' and 'mpv' projects.bluray_player:Since bluray_player uses libmpv as its backend, it can also use its configurationsyntax for playback. See mpv's documentation for more details:https://mpv.io/manual/stable/#configuration-filesYour configuration file is read from ~/.config/bluray_player/mpv.confSupport:I love hunting down anomalies, so if you run into something odd on a disc, letme know and I'd love to look into it. Bug reports are good, too.About Me:I love working with multimedia on Linux! It's a lot of fun. I have done and dopush a lot of my support and development into Gentoo Linux and that is where Icould best provide support if you're hitting problems.I have an old blog where I would write about my adventures in multimedia aswell, so there may be some content there if you're willing to dig for it athttps://wonkabar.org/ While the posts are old, the content is still relevant.I'm a big fan of DVDs as well, and have a super big library of cartoons andother stuff (asking me what my favorite one is changes from week to week).This project has been super fun to work on, my DVD utilities in the dvd_infogithub repo was the first time I'd ever gotten to learn and write code in C,and I love the programming language. It's a tough learning curve, but fun.I try really hard to do clean code and best practices, and my target is to havethe binaries build with as little warnings as possible. I use clang -Weverythingon my local development.DVDs and Blu-rays are a lot of fun to work with. Optical media is not goingaway anytime soon, and there are always good reasons to prefer or rely on it:hobby collectors, no online requirements, save bandwidth, fun collections,guaranteed compatability, access to content, ability to archive, cool shelvesto pack a display with, etc., etc.I do a lot of work with encoding and multimedia in other areas, too, not justDVDs and Blu-rays. One of my favorite things is to find new devices thatsupport video playback and then get things working on them! Good times. I'ma total multimedia geek.In case someone is curious on my take about an HTPC setup, I use (andhave used) and would recommend: Kodi, minidlna, and Plex. For hardware,I use an nVidia Shield. I also would recommend both the PS3 and the PS4 forexcellent clients as well.If you have questions, feel free to contact me at steve.dibb@gmail.comAlso, check out more information athttps://dvds.beandog.org/Copyright:Licensed under GPL-2. Seehttps://www.gnu.org/licenses/old-licenses/gpl-2.0.txt