Wierd Lines??

[EnNiS]

the last two videos i converted have liones going across the screen it really wierd
like thin lines around the characteers and they move and go away
its bizare
plz help thanx

[Tbear]

Sounds like Interlaceing Lines. If it's going to be viewed on TV don't worry. If on computer need to deinterlace the video.

[DJRumpy]

What Tbear is trying to say, is if your final video, will be viewed on a television, then don't worry about the lines. A TV is designed for interlaced video, and they shouldn't even be visible. If your final output is going to be viewed on a PC, then you should probably deinterlace them, or use a player that will deinterlace during playback (like PowerDVD, or WinDVD for MPEG-2). I don't know of any MPEG-4 players that deinterlace, but I dont' keep my video for PC.

You can deinterlace your video using VirtualDub or AVISynth. You can find both in the TOOLS section to the left. You can find information about interlacing here: http://www.lukesvideo.com

[Baldrick]

Please don't post same msg in several forums.

Some more interlaceing info
http://www.100fps.com/

[DJRumpy]

Baldrick, did you know you made PC Magazines "100 Most Usefull Undiscovered Sites" list?

[EnNiS]

ok yeh thanx ill try it
i thik i tried to do sum shit
i had a 29 fps vdieo and and tried using 23(film) and used 3:2 pulldown in tmpg

thanx for the help
i got one more q tho
if u make a svcd and an xvcd, both at a bitrate of 1157 is there a diff??
cuz i tried and both lok teh same on my dvd player.
and one more q
what is VBV Buffer Size??

thanx
And thats fckin sweet about vcdhelp.com bein in pc magazines list
peace

[DJRumpy]

Don't mess with the VBV Buffer size unless you know what your doing. You can cause buffer overruns, or underruns, giving you a coaster for your effort.

Your player must support xVCD. The difference between the two, is the SVCD is a standard. The xVCD is a lack of standard, meaning it may not play on every play.

That said, SVCD support in North America isn't that great for older players, so your SVCD may not play on all players either, but it will play on any player that supports the SVCD standard.

[EnNiS]

k thanx
But i want to know exactly what is VBV Buffer Size.
I looked in the glossary etc. on the site but can't find it.
And what is it's signifigance in the encoding process?
like does it affect what, etc.
because in VCD its set to 40, but when makin a one cd vcd its set to 0 and doing an svcd it above 100
thanx

[DJRumpy]

It stands for Video Buffer Verifier. It is the logic that insures that the mpeg bitrate remains within acceptable parameters. It maintains a steady bitstream when encoding, and decoding an MPEG stream. Certain standards require certain VBV Buffer sizes. If you increase it, or decrease it, outside of the standard, then the MPEG stream may not play back properly on a hardware (standalone) DVD player.

If you think of it like a funnel. You can poor large amounts of water into a funnel, but a preset amount always comes out of the small end. The logic set makes sure that the flow of water at the top of the funnel is maintained so the flow comming out of the bottom isn't interupted.

Make sense?

[EnNiS]

sweet asss
thanx
so the bigger the VBV Buufer Size, the steady the bitrate stays? am i correct?

and so could a low VBV Buffer Size be the cause of sum of teh messed up movies?? like i have some movies, not all, but some and they haev this weird sort of **** up
heres how it goes.
it plays fine but every ten min or so, the video skips but the audio stays steady and in 5-20 secs catchs up with one another. but heres anotehr wierd part. The video always skips in the exact same spot on my Apex AD-1500. (the movies is American Pie 1 for example, and at liek 10:32 min in or so, and it was encoded NTSCfilm i think and in VCD) BUT it plays Smoothly on my paretns Toshiba

any suggestions
thanx

[DJRumpy]

Not necessarily. Increase it beyond a certain size, and you only add a delay to the mpeg decode/encode. Anything beyond what's required is wasted. Leave the setting as is, and save yourself the headache. Increasing it will not benefit you in any way. It will not increase quality, or balance your checkbook.

The problem your describing almost sounds like a media thing. Some players simply don't like some media. It may be having a problem reading that particular sector off of the cd. Try copying the MPEG off of the CD via Explorer. If you get an error, there are probably defects in the CD. You can try to force a good copy by using VCD Tools, and the MPEG -> MPEG option. This will usually rip the MPEG back off of the CD, but it may have frame errors where the media was bad. Make sure you select the 'fix mpeg errors' option.