dvd-id.c, lib.[ch]: Improve DVD ID computation.
authorMark Wooding <mdw@distorted.org.uk>
Sun, 6 Mar 2022 17:32:51 +0000 (17:32 +0000)
committerMark Wooding <mdw@distorted.org.uk>
Sun, 6 Mar 2022 20:34:04 +0000 (20:34 +0000)
Move the code to the library.  Accept flags (to the library function and
the utility) to fail if portions of the ID can't be determined.

Also, improve `dvd-id' to print IDs for multiple disc images.


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