Chroma upsampling for analog capture film material

[yup]

Hi folk!
Recently I made capture from VHS using VCR and capture card and using Huffyuv codec. When I open this file in VirtualDub I see normal progressive frame, combing totaly absent. I plane encode this material use Xvid, how right make conversin from fieldbased video to frame based in chroma plane? I try telecide(guide=0) or exist other way?

With kind regards yup.

[Wilbert]

if your source contains progressive material, you won't need this:
how right make conversin from fieldbased video to frame based in chroma plane?

If not, you can always upload a 10-15 frames huffyuv clip (with a lot of movement) somewhere, and we will have a look at it.

[yup]

Wilbert thanks!

15 frames
http://www.sendspace.com/file/alhh7a
Advice script.
yup

[yup]

Hi peoples!
Very difficult question?
May be
Avisource("xx.avi")
AssumeFrameBased()
will be enough?
yup.

[Guest]

It's progressive. What exactly are you trying to do with it and why do you think you need to do it? Your first post is very cryptic.

[yup]

neuron2!
I want use some filter, Convert to YV12 and use XviD encoder, for example:
AVISource("xxxx.avi")
AssumeFrameBased()
Crop()
fft3dgpu(sigma=3,interlaced=false)
LanczosResize()
ConvertToYV12(interlaced=false)
Please advice, it is right or need some corrections?
yup.

[Guest]

You don't need the AssumeFrameBased(), although it won't hurt because it is already frame based at that point. Yes, just use this, because your video is progressive:

ConvertToYV12(interlaced=false)

[AVIL]

Hi,

I agree with neuron2. In fact if you make the test:

avisource("15frames.avi").info()

you can see your fotage is not fieldbased (framebased then). You can see also yuy2 colorspace (converttoyv12 needed in any point of the script).
You can see 25 frames per second, pure PAL, not telecined.

I also see some residual combing. I suggest you vinverse() filter to figth it.

But your skeleton script can serve as is (assumeframebased don't hurt).

Good luck.

[yup]

neuron2 & AVIL Thanks for reply!
AVISource("xxxx.avi")
vinverse()
Crop()
fft3dgpu(sigma=3,interlaced=false)
LanczosResize()
ConvertToYV12(interlaced=false)
Now script right?
with kind regards yup.

[AVIL]

Hi yup:

It seems correct for me (crop and lanzcosresize needs adequate parameters). You can play with fftdgpu parameters (mainly bt parameter).

Good luck

[yup]

AVIL
:thanks:
I will try make it.
yup.