HDCAM Project….DVCPRO-HD Workflow

[Gary Adcock]

[Borjis] “does DVCPRO-HD output back to HDCAM just as well as a DVCPRO-HD deck but over HD-SDI instead of firewire?”

yes

I do this workflow on a daily basis, using my Kona card, and should higher quality be needed for parts of the project like efx, since I used original tapes to digitize, I can recapture in UC for just those placed where I need the best quality.

Usual DVCPROHD guidelines, some motion graphics do not take well to that codec nor does compositing with soft grads. but for a broadcast show you should have no issues.

FYI –QT rips to ProRes quickly and correctly –capture as UC and convert to ProRes works very well.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

[Chris Borjis]

Thanks Gary,

But can a G5 system handle the layback of ProRes to an HD-SDI signal thats 20 minutes long without dropping frames?

My intuition says yes, since compression usually takes twice the overhead of de-compression.

[Shane Ross]

Gary…he asked for me and Walter…not you.. BUTT OUT! (lol)

[Borjis] “I guess my question is, does DVCPRO-HD output back to HDCAM just as well as a DVCPRO-HD deck but over HD-SDI instead of firewire?”

I have the same answer as Gary…yes, it does. Although I would consider DVCPRO HD an offline codec at this point..and would recommend that you recapture your locked sequence at 10-bit uncompressed (iffin your drives can take it) for better quality.

Or maybe transcode the final project into ProRes 422 (you can do that at least) and color correct in a 10-bit space, then output. I wanna try that myself…but won’t be getting FCP 6 for a while.

Shane

Littlefrog Post
http://www.lfhd.net

[Shane Ross]

[Borjis] “But can a G5 system handle the layback of ProRes to an HD-SDI signal thats 20 minutes long without dropping frames?”

Depends on your Raid array…That is what needs to handle it.

Shane

Littlefrog Post
http://www.lfhd.net

[Gary Adcock]

[Borjis] “But can a G5 system handle the layback of ProRes to an HD-SDI signa”

I am having no issues what so ever with playback of 2 streams of 1080 23.98sf ProRes HQ on my DP 2.5 G5 I have been looping a 38 minute clip for about 110 hours from a 4G fibre array with no issue so far.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

[Chris Borjis]

[Shane Ross] “Depends on your Raid array…That is what needs to handle it.”

Ciprico 4210 with a 4gb fibre channel interface capable of 4:4:4 RGB dual-link 1080 ingest/playback.

[Chris Borjis]

I won’t have the option to re-capture so capturing as DVCPRO-HD then editing, then exporting as a ProRes 10-bit 1920×1080 file, then color correcting, then outputting over hd-sdi to the HDCAM deck sounds right?

I can deal with that 🙂

One last question, any motion graphics I do (lower 3rds, title intros etc..) should I just do those in ProRes and drop them in the DVCPRO-HD sequence?

What resolution should they be rendered out of After Effects in?
1440×1080 (hdcam) or 1280×1080 (dvcprohd) or 1920×1080 (full raster)

Thanks Fellas!