MiniDV no firewire analog conection to PC BFF or TFF

[mammo1789]

Hi guys

I got same minidv tape together with the camera canon md110 pal. Camera came with no firewire cable only with audio video rca jacks. I tried it with mine cable and from the neighbor one but camera is not recognized on ether windows 7 64bit or windows xp. So I am forced to capture it trough analog capture card composite.

My question is if i capture in vdub with lagarith and play the tape will the captured material be bff or tff and how to chose the correct one also should i capture yuv2 or yv12


Thanks

[jagabo]

My question is if i capture in vdub with lagarith and play the tape will the captured material be bff or tff

It depends on your capture card. Analog video is a series of altermating top and bottom fields. The capture device can start with a top field the next (bottom) field to complete the frame, or it can start with a bottom field then add the following top field.

should i capture yuv2 or yv12

Analog video is closest to YUY2 (or other YUV 4:2:2 subsampling).

[Cornucopia]

You are not forced, you just haven't tried hard enough or explored all the options. You really are losing quality by not using firewire.

Normal, original dv is bff. It is best to maintain that.

Scott

[mammo1789]

Thanks guys for replay. I don't have allot experience with minidv.

You are not forced, you just haven't tried hard enough or explored all the options. You really are losing quality by not using firewire. Normal, original dv is bff. It is best to maintain that. Scott

I tried hard enough (as i knew) but it is not recognized on multiple pc's and on couple of firewire cards i have allot experience in hardware and software i even spend some time goggling and there a lot of guys that have the same problem with their cameras being incompatible or much more truth the port could be burned on the cameras itself and it is not so uncommon. So can you please point me to other option that you consider successful. I know that I'm really loosing quality by using composite but how else to connect it ( it doesn't have s video out ).

Jagabo is there way to force the card to capture it bff (yv12? dv ) in vdub so it remains the same as the original dv ( the card is aver media satellite trinity).

Any other solution of connecting this device?

[jagabo]

Jagabo is there way to force the card to capture it bff (yv12? dv ) in vdub so it remains the same as the original dv ( the card is aver media satellite trinity).

You usually can't force a card to capture BFF or TFF. It's built into the card or drivers. You can invert the field order by shifting the frame up or down by one scan line, or by using the field delay* filter in VirtualDub. But that's generally not necessary. About the only times you would want to do that are:

1) You are using a DV encoder so you need to have BFF frames.

2) Your source was originally progressive (for example, film sources in PAL countries), the original telecine was BFF, and you want to keep BFF so each frame can be treated as progressive.

* that's the "field delay" filter, not the "field swap" filter which does something completely different.

[2Bdecided]

If the BFF DV gets changed to TFF during capture, won't you end up with split-fields on every scene transition (i.e. one field from the current scene, the other from the next scene)? Not terrible, but not ideal.

If it is decent quality DV, the quality hit by going through composite is so large that I wouldn't consider it.

If the DV cameras firewire port is fried, by another DV camcorder. Used models cost next to nothing on eBay.

Cheers,
David.

[danno78]

All capture cards that I have used in the past capture as TFF.

If want to edit this file along with true DV file, conversion is needed. If want just to encode in mpeg then tell the encoder that the file is TFF. All mpeg encoders assume that the DV is BFF and the jerky motion appear so, overwrite the right order after importing the file.
If BFF is really needed, capture as YUV2 and then convert the TFF in BFF. There are solution for VirtualDub or Avisynth.

http://neuron2.net/reverse/reverse.html

http://www.geocities.com/siwalters_uk/reversefielddominance.html

The best conversion is done by jdl-telecine.avsi

http://avisynth.org/stickboy/jdl-interlace.avsi

[jagabo]

Simple reverse field order in AviSynth (use YUY2 or RGB video):

Crop(0,1,-0,-0) # remove one scan line from the top
AddBorders(0,0,0,1) # add one scanline to the bottom

Or you could shift the frame down 1 line instead of up one line. Another method:

SeparateFields()
Trim(1,0)
Weave()