Problem with jerky playback

Simon Tsiolas · May 24th, 2010, 02:03 PM

Hello Tom and Bryan,

I am not referring at all to the stability of the camera operator. There are some parts in your movies as in my movies too where the film slightly stops and it looks jerky, choppy or any right English word that might be more descriptive. Look at Bryan's video in the frames following sec 38. The video is not smooth and this is not a stability problem of the camera operator. This what I call jerky motion. So the issue raised in this post is not the resolution or the blurriness. It is the fact that when I try to produce a video from the original m2ts the final result is not as smooth as the original.

So I am coming back to my original question "Is it possible for you guys or anybody else in this forum to provide an explanation of why this is happening and if possible any proposal/solution?". Why can't I take even a very small resolution video from the m2ts file with 100% perfect motion like I see in the camera monitor?

And if somebody really managed to produce a perfectly smooth video from the original m2ts could you please post it here to see with my own eyes how it looks like? You can go to Transfer de fisiere foarte mari (pana la 1GB). Transfer.ro where you can send up to 1gb files for free.

Thanks guys and I am looking forward to your proposals.

P.S. Bryan thanks for the white paper. It looks very interesting. I will read it now.

Bryan Sellars · May 26th, 2010, 05:05 PM

Hi Simon, Do you mean the pan of the 2 kayaks, it is very unstable video in the original, I've been through the video and checked against the Vimeo copy and see some macro-blocks that are not on the original video but that's just from the low bit-rate they are re-encoding at, I also checked with my 1920x1080i version and the MTS file it was edited from, that particular piece of video was pushing the technology to the limit, I was holding the camera with one hand and the main-sheet to the sail with the other and steering with my knee on the rudder, the poor optical stabilizer was working very hard, and then there is the random nature of water movement that's very hard for the limited bit-rate to cope with.

I have found there's a set of patches for Corel Video Studio Pro X3 that might be worth installing if you don't have the latest version.

http://corel.custhelp.com/app/answer...ag%3D%3D/sno/0

Tom Gull · May 26th, 2010, 05:53 PM

Hey, Bryan, thanks for posting the Corel link. I hadn't checked for updates yet. Glad to pick these up!

May 24th, 2010, 02:03 PM	#16
Simon Tsiolas New Boot Join Date: Apr 2010 Location: Thessaloniki Posts: 7	Hello Tom and Bryan, I am not referring at all to the stability of the camera operator. There are some parts in your movies as in my movies too where the film slightly stops and it looks jerky, choppy or any right English word that might be more descriptive. Look at Bryan's video in the frames following sec 38. The video is not smooth and this is not a stability problem of the camera operator. This what I call jerky motion. So the issue raised in this post is not the resolution or the blurriness. It is the fact that when I try to produce a video from the original m2ts the final result is not as smooth as the original. So I am coming back to my original question "Is it possible for you guys or anybody else in this forum to provide an explanation of why this is happening and if possible any proposal/solution?". Why can't I take even a very small resolution video from the m2ts file with 100% perfect motion like I see in the camera monitor? And if somebody really managed to produce a perfectly smooth video from the original m2ts could you please post it here to see with my own eyes how it looks like? You can go to Transfer de fisiere foarte mari (pana la 1GB). Transfer.ro where you can send up to 1gb files for free. Thanks guys and I am looking forward to your proposals. P.S. Bryan thanks for the white paper. It looks very interesting. I will read it now.

May 26th, 2010, 05:05 PM	#17
Bryan Sellars Regular Crew Join Date: Apr 2009 Location: Nelson, New Zealand Posts: 63	Hi Simon, Do you mean the pan of the 2 kayaks, it is very unstable video in the original, I've been through the video and checked against the Vimeo copy and see some macro-blocks that are not on the original video but that's just from the low bit-rate they are re-encoding at, I also checked with my 1920x1080i version and the MTS file it was edited from, that particular piece of video was pushing the technology to the limit, I was holding the camera with one hand and the main-sheet to the sail with the other and steering with my knee on the rudder, the poor optical stabilizer was working very hard, and then there is the random nature of water movement that's very hard for the limited bit-rate to cope with. I have found there's a set of patches for Corel Video Studio Pro X3 that might be worth installing if you don't have the latest version. http://corel.custhelp.com/app/answer...ag%3D%3D/sno/0

May 26th, 2010, 05:53 PM	#18
Tom Gull Regular Crew Join Date: Aug 2008 Location: Rockville, Maryland Posts: 142	Hey, Bryan, thanks for posting the Corel link. I hadn't checked for updates yet. Glad to pick these up!