CF video playback inconsistent... at DVinfo.net

Michael Gyori · April 7th, 2009, 04:32 PM

I own Neo Scene 1.1.2. Whenever I use VirtualDub to output an AVI file with the Cineform codec, it plays back terribly with Windows Media Player. Whenever I use Neo Scene or Vegas 8.0c to output an Cineform AVI file, it plays back beautifully in WMP.

Why is there a difference?

Jay Bloomfield · April 7th, 2009, 06:11 PM

Are the codec settings the same in both Vegas and VDub? Also, in VDub, check the audio interleaving settings. You'd have to ask David Newman as to what effect that might have on playback.

Michael Gyori · April 8th, 2009, 02:26 PM

I used the default settings for Cineform with HighHD and Progressive set for all methods. Within VirtualDub I tried both with audio interleaving every 500ms and no interleaving.

All VirtualDub versions play terribly (or practically not at all), while all NeoScene and Vegas versions played perfect or near perfectly.

Michael Gyori · April 14th, 2009, 11:29 PM

Can anyone at Cineform tell me why playback of a Cineform AVI is inconsistent?

Michael Gyori · April 22nd, 2009, 12:49 PM

Does anyone at Cineform have any theories why playback of CF files is inconsistent?

David Newman · April 23rd, 2009, 06:22 PM

Could you prove a link to a few seconds of the same sequence rendered both ways. My guess is this has nothing to do with CineForm compression at all, more to do with what might be in the AVI header causing your video card to choke. Related we have also seen Vista issues where WMP stupidy decides to using VFW instead of DirectShow playback as part of the paranoid content protection engine. Using Vista?

April 7th, 2009, 04:32 PM	#1
Michael Gyori New Boot Join Date: Mar 2009 Location: Vancouver Posts: 19	CF video playback inconsistent... I own Neo Scene 1.1.2. Whenever I use VirtualDub to output an AVI file with the Cineform codec, it plays back terribly with Windows Media Player. Whenever I use Neo Scene or Vegas 8.0c to output an Cineform AVI file, it plays back beautifully in WMP. Why is there a difference?

April 7th, 2009, 06:11 PM	#2
Jay Bloomfield Major Player Join Date: Feb 2008 Location: Voorheesville, NY Posts: 433	Are the codec settings the same in both Vegas and VDub? Also, in VDub, check the audio interleaving settings. You'd have to ask David Newman as to what effect that might have on playback. Attached Thumbnails

April 23rd, 2009, 06:22 PM	#6
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Could you prove a link to a few seconds of the same sequence rendered both ways. My guess is this has nothing to do with CineForm compression at all, more to do with what might be in the AVI header causing your video card to choke. Related we have also seen Vista issues where WMP stupidy decides to using VFW instead of DirectShow playback as part of the paranoid content protection engine. Using Vista? __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

April 8th, 2009, 02:26 PM	#3
Michael Gyori New Boot Join Date: Mar 2009 Location: Vancouver Posts: 19	I used the default settings for Cineform with HighHD and Progressive set for all methods. Within VirtualDub I tried both with audio interleaving every 500ms and no interleaving. All VirtualDub versions play terribly (or practically not at all), while all NeoScene and Vegas versions played perfect or near perfectly.

April 14th, 2009, 11:29 PM	#4
Michael Gyori New Boot Join Date: Mar 2009 Location: Vancouver Posts: 19	Can anyone at Cineform tell me why playback of a Cineform AVI is inconsistent?

April 22nd, 2009, 12:49 PM	#5
Michael Gyori New Boot Join Date: Mar 2009 Location: Vancouver Posts: 19	Does anyone at Cineform have any theories why playback of CF files is inconsistent?