@Jeff-X :-
Now then..... You're in luck!
I've recently finished setting-up a new frugal of 32-bit Xenialpup 7.5 myself. I, too, am a big fan of SMPlayer; I've been using norgo's builds for several years.
I originally tried installing 20.6.0 - the previous release from norgo - but it kept falling flat on its face with 'Oops! mplayer has encountered a problem....', etc, etc. Up till now, I've been using 19.10.0, which has been happy with the version of mplayer from the repos (1.2.1). So, following Oscar's post, I had a look into compiling it from source.
I'm not the world's greatest expert when it comes to compiling, I'll be honest. I haven't used the newest SVN 'snapshot' build; I've used the 1.4 code from the MPlayer website. I know this is over 18 months old, but it has ALL the ffmpeg stuff included with it; the 'snapshots' require all this to be installed manually, and you need to know exactly what you're doing with it.....which I don't.
So; I've gone with the 'official' stable source code, as-is. I also don't have a clue about which --options to enable/disable in the build recipe, so I've stuck with the default makefile recommendations, and compiled this with FULL options. Even after
.....this still runs out to a hair under 19 MB, as opposed to most Puppy builds which are around 4-6 MB. BUT.....
.....it works. (And I was pleasantly surprised at how easy it was TO compile!)
I built this under the PAE k4.1.30 kernel, not the default no-PAE k4.4.95 one. However, I did test it out under a pristine Xenial as it comes, OOTB.....and it runs without issue.
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So; if you want to download & install this mPlayer 1.4 .pet from my Google Drive, here:-
https://drive.google.com/file/d/1IPz-sO ... sp=sharing
.....followed by the Qt4 21.1.0 'Slacko 560' statically-compiled SMPlayer .pet from norgo's post here:-
viewtopic.php?p=14997#p14997
.....you should have a working SMPlayer 21.1.0 in Xenialpup 7.5. Let me know if that works for you, please.
(You won't need Qt4 installed to run this one; because it's 'statically-compiled', it's all 'hard-linked' into the binary at build-time.) After you've installed these two, and after it's fired-up for the first time, but before you try to play anything, go into Preferences, and on the 'General' tab, right at the top, make sure the 'Multimedia engine' is set to /usr/bin/mplayer. Just so it actually uses the newly-built mPlayer, like..!
Goes without saying that it's entirely your decision, of course.
Anyway; hope that helps. Enjoy.
Mike.