Playback issues. at DVinfo.net

Nathan DuMoulin · April 25th, 2008, 04:45 PM

A client gave me an absolute ton of footage encoded with Cineform. I need to sort through it all, ideally by using a stand alone movie player.

I read all the threads about how VLC and WMP are no good for the job, and how Media Player Classic is the way to go. I downloaded the newest build of the player, as well as the newest NEO build, but I'm still having playback issues.

The picture is really jumpy. It looks like one field is playing back nicely, while the other is jumping all over the place. The footage plays back flawlessly in Premiere and After Effects, but not in any of my media players. I've tried uninstalling and reinstalling NEO, but no luck.

Any ideas?

David Newman · April 25th, 2008, 05:34 PM

CineForm does not encodes the field separately, so what you decscribe has to be happening elsewhere - the entire frame is presented to the output in a single unit. If you use graphEdit you can clock how fast your decoding is (press play, tehn stop, then turn use clock off, play again, check the properties on the video render (second tab) for the playback speed.) My laptop plays 1080i at 41 fps, so it passes. Maybe your graphic card is attempting to deinterlace the video and messing up, also check that you aren't bottlenecked by your disk system.

Nathan DuMoulin · April 25th, 2008, 05:55 PM

Thanks David.

The footage plays fine in all the CS3 apps, and my OS was just freshly formatted/installed last night. Sadly I didn't have this problem when I was using Vista64 (I switched back to XP32 last night).

I just ran GraphEdit as you suggested (pretty neat program), and I managed 42fps when playing back the Cineform files....so all is well there.

Any other ideas?

David Newman · April 25th, 2008, 06:11 PM

Try upgrade your graphics card drivers, as that seems to be the failure point.

Nathan DuMoulin · April 25th, 2008, 06:34 PM

I hate to say it, but I downloaded and installed the newest drivers for my Video Card and Motherboard last night when I did the fresh install of XP.

This isn't looking overly good for me.

Thanks for the effort though :)

April 25th, 2008, 04:45 PM	#1
Nathan DuMoulin Regular Crew Join Date: Aug 2007 Location: Las Vegas, NV Posts: 101	Playback issues. A client gave me an absolute ton of footage encoded with Cineform. I need to sort through it all, ideally by using a stand alone movie player. I read all the threads about how VLC and WMP are no good for the job, and how Media Player Classic is the way to go. I downloaded the newest build of the player, as well as the newest NEO build, but I'm still having playback issues. The picture is really jumpy. It looks like one field is playing back nicely, while the other is jumping all over the place. The footage plays back flawlessly in Premiere and After Effects, but not in any of my media players. I've tried uninstalling and reinstalling NEO, but no luck. Any ideas?

April 25th, 2008, 05:34 PM	#2
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	CineForm does not encodes the field separately, so what you decscribe has to be happening elsewhere - the entire frame is presented to the output in a single unit. If you use graphEdit you can clock how fast your decoding is (press play, tehn stop, then turn use clock off, play again, check the properties on the video render (second tab) for the playback speed.) My laptop plays 1080i at 41 fps, so it passes. Maybe your graphic card is attempting to deinterlace the video and messing up, also check that you aren't bottlenecked by your disk system. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

April 25th, 2008, 06:11 PM	#4
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Try upgrade your graphics card drivers, as that seems to be the failure point. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

April 25th, 2008, 05:55 PM	#3
Nathan DuMoulin Regular Crew Join Date: Aug 2007 Location: Las Vegas, NV Posts: 101	Thanks David. The footage plays fine in all the CS3 apps, and my OS was just freshly formatted/installed last night. Sadly I didn't have this problem when I was using Vista64 (I switched back to XP32 last night). I just ran GraphEdit as you suggested (pretty neat program), and I managed 42fps when playing back the Cineform files....so all is well there. Any other ideas?

April 25th, 2008, 06:34 PM	#5
Nathan DuMoulin Regular Crew Join Date: Aug 2007 Location: Las Vegas, NV Posts: 101	I hate to say it, but I downloaded and installed the newest drivers for my Video Card and Motherboard last night when I did the fresh install of XP. This isn't looking overly good for me. Thanks for the effort though :)