OT: editing while capturing

ReasonMan wrote on 5/1/2005, 1:19 PM
Do you know any editing program that makes it possible for you to edit and capture at the same time (like EVS or Sony's MAV)?

I would like to use Vegas as an editing program while maybe on an another computer capture a sdi/component/composite signal. Then through the network put parts of this clip on the timeline in Vegas - all this without stopping the capture. Is this possible?

If it is possible, what kind of capturing program can I use?
What kind of a fileformat is there that allows you to work with the file while it still captures (read while writing)?

Comments

johnmeyer wrote on 5/1/2005, 2:10 PM
Just tell your capture program to segment your captures into, for example, 2 GByte files. Then, as soon as your capture program has captured enough to fill the first file, and automatically creates the second file, you can put the first file on the timeline and start editing. The multipe files from the capture will play seemlessly, without hiccup or interruption, one file to the next.

Don't get "hung up" on the notion that the capture has to all be in one file and that you have to edit and capture to the exact same file at the same time. This is tough for any program to do under Windows. The approach outline above should work. You disk will have to be fast enough to permit reading file still maintaining the 3.5 MBytes/second needed for capture.
Marco. wrote on 5/1/2005, 2:19 PM
The way EVS or the MAV, DNE-2000, XPri works is based on the file format used there. You cannot edit this way when using AVI or Quicktime files. MXF is a good format to do so.

Vegas 6 is said to have kind of MXF support at least combined with XDCam devices. So maybe it will be possible soon (this support is not yet activated in the current V6 version).

Marco
ReasonMan wrote on 5/2/2005, 12:35 AM
"as soon as your capture program has captured enough to fill the first file, and automatically creates the second file, you can put the first file on the timeline and start editing"

Aah, never thought about that.

Fast disk... You are talking about 3,5MBytes/sec - that is DV rate. I'm thinking more like Betacam SX (through SDI) and XDCam (IMX30 or IMX40) quality. I would then need SCSI-disks I suppose and maybe a RAID-system.


I also have heard that Vegas will support XDCam and MXF files in a later version. That would be great. So, when Vegas support that I would only need a capturing program that creates MXF-files or find a capturing program that segment the captures.