Footage is Jumpy/Jerky

diego1235467 said:
That's what I thought I would try later, but since it seems to be more of a software issue, I figured I'd hold off on doing that. But I do plan to later. Those who have used 24PN, does it look better than the pulldown method?
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Try stepping through your clip 'frame by frame' in areas that are 'jerky'... if you see 'jerk' from one frame to the next, it could be an encoder/decoder problem, or could be a bitrate to the media problem (well those are my guesses at the moment...)

If the frames are 'smooth' one after another... it could be the playback problem that some 'ancient', like two or three years old... CPU's have...

If you've transcoded to something other AVCHD, it still could be a playback issue if you are trying to play 1920x1080 HD... in that case, resize the media to perhaps 1/2 in each dimension, that is 1/4 the data... and see if it plays smoothly.
 
Frame by frame it looks fine to me. It's a macbook pro that I bought last year, I don't see why it wouldn't be able to handle it. I made a 720p version of the clip, and the same thing happens.

I'm positive it is a playback issue, but I don't know how to fix it. My mac should be able to handle it.
 
j1clark@ucsd.edu said:
You later indicted that you did not enable the no-pulldown option. Would it be possible for you to reflash the hack with the 'no-pulldown' option for 24p enabled.

Given all the glowing reports of the hack, I don't recall anyone indicating they were still using the pulldown format.

I've been waffling on flashing my camera with the hack. So, I can't really 'test' things at this point...
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Many, many people are still using the 'pulldown method' (N24p unchecked)-- N24p is quite unstable, you can easily lose all previously shot footage when the camera seizes up in high (or sometimes not-so-high) detail shots, static or not.
 
Tried in Compressor and it still looks the same. Cinema Tools looks the best from all of them. It's obvious it's a playback issue, because each time it "jumps" at different moments. It's really making me angry. In general, the footage looks fantastic, and is miles ahead of my DVX. But any slight movement, and the video starts to lag.
 
I bet there's a bandwidth bottleneck somewhere in your system. It could be anything: RAM, drive speed, CPU, graphics card speed, etc. You tried compressor, but try compressing it a lot more and down to SD. See if that file will play.
 
I took it through Mpeg Streamclip to play on my PS3. While the quality isn't mindblowing, it doesn't have the same problem. As I suspected, my mac is lagging the stupid clips. It never lags on downloaded 1080 video, why does it happen with these?
 
If your not using an intermediate codec like Neoscene the AVCHD format is so highly compressed it can choke anything less that a Quad-core compuer, but it's probably a bottleneck somewhere else as Mac Pro are usually OK.
 
It's just incredibly frustrating to not be able to view my footage. No matter what format (MOV, MP4, etc.) it's in, and whether it's 1080 or 720, the clips always lag. I can't figure out what the hell is going on.

For anyone editing GH13 footage on a Macbook Pro, can you please explain your process for capturing, editing, and exporting video? And do you run into this problem?
 
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Just edit some footage and put it on a DVD! Most likely you won't have a Blue-Ray burner but even on SD DVD you will be able to see how the footage looks out of the computer. Unless you have a super fast one HD is very hard to watch smoothly on a computer.
 
I guess. Still, it pisses me off. I've played countless 720p videos on here, and they've all been fine. But as soon as I try to play a 15 second 720p clip from my GH1, it lags.
 
diego1235467 said:
In camera it doesn't suffer from that issue.

@Mr Fanny, so your original files look bad as well?
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my original footage looks fine. its when i play it on VLC or some other player that can't deal with mts files that it looks terrible.

sounds like your issue is your transcoding from original to whaterver and possibly not doing pulldown properly.
 
a recommendation from a user here pointed me to Splash Lite. its a nice player that works for me, even on my wifes slow laptop. also, it gives you real-time bitrate info, by clicking the "i" button in the player. sofar, it's working well. hope that helps.
 
if the files play fine inside the camera then you are obviously doing something wrong in transcoding them. in FCS use log+transfer to transcode them to prores 4.2.2 and they should play fine on any macbookpro but they do need more bus/cpu power to play than regular 720P from my HVX, so even after the best transcoding these AVCHD files do need more bandwidth than P2 files of the same format!
I even edit with FCS on my macbook and I can see the difference when I drop 720P files from HVX and GH1 into the same timeline: the GH1 files eat more cpu.....
 
Chris Light said:
a recommendation from a user here pointed me to Splash Lite. its a nice player that works for me, even on my wifes slow laptop. also, it gives you real-time bitrate info, by clicking the "i" button in the player. sofar, it's working well. hope that helps.
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Splash lite uses about 50% less CPU, and it gets the image pretty right to. Been my default player ever since VLC released that buggy version some time back.

Not tried it on a Mac though.

R
 
^haha...yup...Rambo is the guy...

seriously though, it's a good HD player that handles .mts files just fine. not sure why more people don't know about this player. i gave up on VLC long ago, and had no good video player for months, until Rambo recommended Splash Lite. it's so easy, a caveman can do it.
 
Ugh, so that failed. Can someone walk me through the "log and transfer" process that's worked for them? I thought I'd followed the instructions in various threads, but maybe that's the problem.

I still think it's a playback issue, because the jumps are always in different spots in the video, but maybe I am doing something wrong. I'm removing the pulldown following the instructions on the sticky, by the way.
 
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