Also, the original input media for the shaky demo using Motion 51 and the XML file to show which parameters can be downloaded at: https://www.cinelerra-gg.org/media/demos/stabilize/
On Tue, Sep 27, 2022 at 11:06 AM Phyllis Smith <[email protected]> wrote: > A little feedback/commentary about Motion in this thread. > > - Miroslav's demonstration videos of before and after Motion look pretty > good and the cell phone quality capture was surprisingly detailed. > - For those who have not been around so long, Georgy is the expert on the > Motion plugin as he did a major rewrite that solved many issues a few years > ago. So any hints and information he provides is very beneficial. > - Demo that Georgy referred to is the file (if it does not play for you, > just download it and play then): > https://www.cinelerra-gg.org/media/demos/stabilize/stabilize.mp4 > This demo uses Motion51 since it was created before Georgy greatly > improved Motion. Motion51 works a little differently than does the heavily > modify original Motion. > > On Sun, Sep 25, 2022 at 12:04 AM Miroslav Rovis via Cin < > [email protected]> wrote: > >> Reusing what I wrote in late last night's thread. >> On 220924-23:31+0200, Miroslav Rovis wrote: >> > I've been using VP9 (previously VP8) webm a lot. E.g. anywhere >> > you go from: >> > https://www.croatiafidelis.hr/2022/ >> > or, to take just one sample (4 minutes): >> > >> https://www.croatiafidelis.hr/2022/Jazovka/VID-2022-06-22-1034-Jazovka-procesija.webm >> > It's nothing but motion plugin set up, blur plugin in the >> > bottom video at 100%, and go render. Then work the audio >> > separately, mux and post. Of course, the stabilizing is slow, >> > motion plugin takes long to calculate. >> > >> > But all those people moving can be scrutinized in a lot of >> > detail, as if I filmed with a mobile phone attached to a good >> > stabilizer, and instead, the original was a shaky video as >> > ever, because I held the mobile with just my hand. >> > >> > Cinelerra can stabilize you videos well. It's worth the >> > time-expensive learning curve to get to know how to do it. >> > >> > Here are some comparison videos with both the shaky and >> > stabilized video (however I've gotten better since then, these >> > are all old, but I have no other comparisons) >> > >> > e.g. from: >> > https://www.croatiafidelis.hr/2019/ >> > the videos e.g.: >> > >> https://www.croatiafidelis.hr/2019/Jaska/190824-Jaska-Vukovic-demo-1-stabilize.webm >> > or from: >> > https://www.croatiafidelis.hr/2015/Macelj/Macelj-2-cmp.php >> > the video being: >> > >> https://www.croatiafidelis.hr/2015/Macelj/150607-Macelj-HebrangCOMP.webm >> >> But the above do not sufficienlty well demonstrate how well >> Cinelerra can stabilize shaky videos. >> >> I think I have a better example that I hope I can offer. >> >> But I plan to make it both a demonstration of this capability >> and a tutorial so other users can benefit from it, on the one >> hand. >> >> And on the other, I want to show the issues that come across in >> Motion Plugin usage. >> >> I can say what it is right now, but that's dry and no way >> immediately plausible. Here: >> >> The fist issue: >> When using Motion Plugin, a last-used setting (previusly used, >> even in a different video) is written in the new XML along with >> the newly setup numbers for a particular part of a video to >> which Motion Plugin Effect is attached. And it sometimes messes >> up the XML, and rendering does not get what the user put in. >> >> The second issue: >> And, sometimes, there appear to be problems with some Cinelerra >> cache somewhere so bad that tweaking the Motion Plugin settings, >> while written correctly in the new XML, do not actually apply. >> The rendering gets the user the earlier tweaked result no matter >> the new editing. >> >> While I am not certain I can, within the time that I can set >> appart for this, show how to reproduce the second issue, I >> believe I can show the first issue within, hopefully this day >> today. >> >> I want to do it along with demonstrating a very good motion >> stabilization on not-too difficult parts of a 1m 30s video that >> otherwise would be almost bad for viewing. >> >> I plan to post it, God permittign, at: >> >> https://croatiafidelis.hr/foss/cap/cap-220925-cinelerra/ >> where, at the time of writing this, there is only the short >> video: >> VID_20220910_133415_5.mp4 [*] >> that I want to use for this >> demonstration/tutorial/bug-report all-in-one. >> >> Regards! >> >> ---- >> [*] The timestamp in VID_20220910_133415_5.mp4 is for 2022-09-10 >> 13:34:15, the start of my filming, but that's part 5, which I >> obtained with cutting the VID_20220910_133415.mp4 with mkvmerge. >> It's and event that the media exanded for a few days on, an, >> thankfully innocuous standoff with Croatian police... I want to >> show how good reporting can be done with simple cheap mobile >> phone camera, made good only after motion stabilization. >> I mean, look at that video, it's so shaky because I walked and >> even talked and waved (well, that's not seen) at people... >> Stabilization is absolutely necessary. >> This is what you should get (SHA256 of the video): >> 8ae65c8b17b3d607020c392323fa5ab8569bd40083648d808602a0dfffc8f1f9 >> VID_20220910_133415_5.mp4 >> >> -- >> Miroslav Rovis >> Zagreb, Croatia >> https://www.CroatiaFidelis.hr >> my PGP-key: >> https://www.croatiafidelis.hr/FCF13245ED247DCE443855B7EA9884884FBAF0AE.asc >> -- >> Cin mailing list >> [email protected] >> https://lists.cinelerra-gg.org/mailman/listinfo/cin >> >
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