PDA

View Full Version : Help to make vcd from a non compliant Mpeg




girlfromthesun
8 Jan 2002, 12:21 AM
When I try to make a pal vcd from a mpeg file, an error message comes up 'invalid video stream'
>>29 frames/sec with 320x240

How can I make the file compliant? I am loath to re-encode with nero as it goes well for the first few minutes then deteriorates the picture after that.

I tried with TMPGen but the sound came out really bad.

Any suggestions?

setarip
8 Jan 2002, 02:04 AM
It probably has to be at 25 fps in order to be PAL compliant. If I remember correctly, this can be overcome by: Under TMPGEnc, try using the 3:2 pulldown or telicine options under the "Advanced" tab. Simply directly changing the framerate will throw your video out of synchronization.

Let us know of your success ;>}

girlfromthesun
8 Jan 2002, 09:48 AM
Thankyou, I will try that and let you know.

girlfromthesun
8 Jan 2002, 10:46 AM
I have tried many ways to fix this mpeg, and although the picture looks fine, the sound goes all crackly.

Is there a setting I should try?

I have tried 'noise reduction' in the advance settings.

setarip
8 Jan 2002, 12:31 PM
Try setting the sound to MPEG Layer II at 224Kbps

By the way, was the sound okay in the original MPEG file?
What audio format was used?

girlfromthesun
9 Jan 2002, 06:37 AM
Thankyou for getting back to me!!


Mpeg layer II 192, 4100

The main thing that nero tells me is wrong is that the 29 frames/sec is not compatible with the 320x240 ratio.

I tried already to convert the audio to 224 but even though it did improve the crackling to some degree, it was still present.

Should I try to see if Nero can convert it?
I realize that it does a pretty bad job at converting avi to vcd, but maybe not with this kind of thing?

What do you think??

setarip
9 Jan 2002, 01:43 PM
"The main thing that nero tells me is wrong is that the 29 frames/sec is not compatible with the 320x240 ratio."



From my earlier response to you, "It probably has to be at 25 fps in order to be PAL compliant. If I remember correctly, this can be overcome by: Under TMPGEnc, try using the 3:2 pulldown or telicine options under the "Advanced" tab."

Have you done this? (I'm fairly certain that you haven't, since you continue to refer to 29 fps being incompatible)

girlfromthesun
9 Jan 2002, 01:58 PM
I did use those settings:

The 3:2 pulldown option made the video have all these horizontal lines in it and looked awful.

The telicine option made the picture look good, but the sound was all crackly.
When I use the telicine option, should I keep the 29 frames p/s in the video settings unchanged? From what I read about this option, it converts to 24 frames / sec. Is this close enough to the ntsc frame rate?

My mind is spinning with all the possibilities!!!

Thanks for your reply.

setarip
9 Jan 2002, 06:08 PM
"From what I read about this option, it converts to 24 frames / sec. Is this close enough to the ntsc frame rate?"

It should be...


By the way, you still haven't answered yet another earlier question I asked, "By the way, was the sound okay in the original MPEG file?"

girlfromthesun
9 Jan 2002, 08:39 PM
Sorry about that...

Yes, the sound quality was very good. That is why I noticed how badly it sounded after the conversion.

I have tried both 192 and 224, with noise reduction, and still the crackling.