BIZARRE TMPGENC PROBLEM - SECOND HALF OF MOVIE JERKY/CHOPPY

[kiboy6]

I have a really strange problem that I just can't figure out.

In general I am very happy with the quality of the SVCDs I make and so I am confident that I have all the right programs/settings working for me.

Here's the problem I have identified recently


I have encoded many .avi files to mpeg with tmpgenc, andsometimes the first half will play fine but the second half wil be jerky. (two 800MB mpeg2s created by batch encode with tpmgenc from single 700mb avi)

this happens even though the source range is the only difference between the two encodes. (video and audio sources, and tmpgenc settings are identical)

I read somewhere else on this site that TMPGENC behaved funnily if the encode doesn't start from frame 1, but nobody replied to the poster who reported that.

Can anyone tell me why this happens/ how it can be avoided. is the only solution to create one big mpeg and then split it in 2 with Womble. If so will Womble do this in a fuly compliant way with no quality loss?

Thank you so much - I'm really confused about this one


Many thanks, any help would be enormously appreciated



{If it helps, i have ffdshow (disabled for xvid) and all necessary divx/ xvid codecs installed. Also direct show priority at the top of the VFAPI environmental setting)

[Grimey]

My suggestion would be to encode the whole Mpeg as one, then split the final product.
you can split it using 'mpeg tools' in the file menu of TMPGEnc. I'vehad nothign but problems when i try and use the source range setting in TMPGEnc.

[kiboy6]

thanks so much for your super quick response grimey.

Is splitting the mpeg a relatively problem free process (for vcdeasy use)

Does everybody else also think that source range is best completely avoided in tmpgenc?

Thanks

[johns0]

Ive had the same problem with tmpgenc but only if the movie was over 3 hours long and using cq setting and not splitting the movie.

[lordsmurf]

sounds like reverse interlace, or wrong framerates on second half

[BJ_M]

sounds like one of my commercial dvd's where i flip the field order in the pulldown a couple of times and also change the pulldown pattern a few times throughout .. just to create problems for you ..

so sorry

[kiboy6]

i don't see why the source file would have completely different characteristic between the first and second halves. Anyone else have any idea?

[kiboy6]

anyone, please help?