Cannot shorten a video without turning it upside down

[coldpassion]

Hello friends,

I have a timelapse video which is around 8 minutes. For this reason, I found a way to play it in 8x speed and encode it again (or by using the record button). Although it works properly and the resulting video is around 1 minute now, the video is upside down.
I found this in the forum, so I tried it to turn it normally again. But then it's not converted/played faster. So I can either have the video upside down or at 8 minutes and normal. How can I do both of them at once and finally have a normal video but shorter?
p.s.: it has no sound

[Hitchhiker]

It states in that tutorial you linked to that after turning your video the right way up you have to go back to the same menu again and uncheck everything otherwise the next video you play will be upside down again because the settings are saved.

[coldpassion]

Of course. But except from that, I'm playing the video in other players/devices. I can see even the preview of the file that it's upside down. The sky is down. So i'm not losing my mind.. hehehe

[Hitchhiker]

I think the problem lies with the fact that you're trying to create a time lapse video in an unconventional way. It's a bit more complicated than just speeding it up and then recoding it. Doing it your way might result in something similar to what you have now.

I would suggest following one of the many tutorials around such as this one. Scroll down to "VLC; Nifty and free". Alternatively just do a search for "How to create a time lapse video" and it'll turn up a number of results on youtube if you prefer to watch a tutorial rather than read one.

[coldpassion]

I never said i'm creating a timelapse by speeding it up. I said clearly that "I have a timelapse video". I just want to make it run faster. Can you explain to me what's the connection of the speed of the video and the fact that vlc turns it upside down? Anyways, the only way to make it was to make it run faster and keep it upside down and then I used an online converted to turn it upside down again. The fact is, vlc wasn't helpful or it's just... "buggy"?

[Hitchhiker]

OK, I misunderstood, sorry.

Can you check whether your machine is the culprit by right clicking a blank part of the screen and click Graphic Options ---> Rotation. The default is 0 needless to say, but there are others to flip it 90 degrees, 180 etc.

[coldpassion]

I guess you're talking about an intel onboard card.. and I don't have one, I have a nvidia card and my orientation is definitely 0...

[Hitchhiker]

Try as I might I can't get the video to flip upside down so I don't know how you got there I'm afraid.

[Xetwnk]

I have been looking for literally YEARS for instructions that successfully apply a time lapse to a piece of existing digital video. I'm appalled that nobody seems capable of getting it right or making it easy, when the basic concept is dead simple: just play every Nth frame at the original framerate. Duh. But the instructions I've found, which say to use VLC's "FPS Conversion Filter" to do timelapse, simply result in a video of exactly the same net runtime and overall speed-of-action, but with "step, step, step" motion because now the FPS has been reduced WITHOUT being re-encoded to play at the original speed. Somebody somewhere seems to think they know what timelapse is, when they actually don't! And I lack the college degree in digital video technologies, and/or the intimate knowledge of the inner workings of VLC or ffmpeg, that seem to be a prerequisite for either figuring it out myself or even making sense of the VLC "documentation."