Lumiere HD + Decklink workable ?

[Mactrix]

Did you understand the Lumiere HD-workflow?
It will convert the footage, so you must only choose a format
that is supported by BMD …

[Mike Smith]

Hi Mactrix

Yes I understand the lumiere offline / online workflow model. The question then arises: does Lumiere allow capture into HD formats for normal HD editing, and if so which ones? Or is it necessary to capture into an SD format, and go with the Lumiere “online” stage for completion.

Thanks

Mike

[Mactrix]

Hi Mike,

Lumiere does not capture in a different format.
Lumiere converts the HDV-footage in any possible
QuickTime format. So if you’re working with 25p
or 24p HDV you must choose a QuickTime format
that is supported by BMD with the desired frame
rate, e.g. DVCPRO HD 720p24 or 720p30 …

Later than you will reconnect the original HDV
footage (.m2v) and set the sequence settings to
uncompressed, export it and transfer it back to
HDV (one generation loos). That’s why I asked 😉

[Mike Smith]

Thanks again Mactrix.

Let’s try to clear up my language:

when Lumiere captures the HDV datastream and creates a converted file in a Quicktime format to edit “offline” – is it possible to choose a BM-supported High Definition codec for the conversion, ending up with editable HD in 24p from the HDV source … ?

Or it necessary with Lumiere to choose a standard definition, 720×576 or 720×480 Quiktime codec for the offline / conversion stage?

Thanks !

[Mactrix]

If you have the disk speed and capacity you can convert
directly to uncompressed … but if your output format
is HDV again, than this step is not necessary. The real
question is what is your output format if it’s not HDV?

Keep in mind that with 720p24 you can output that
format on a NTSC-videomonitor using the 3:2 pulldown.
720p25 is no official standard and will only playback
on a progressive computer display, not on standard
videomonitors … and there is no online format (like
HD-D5, HDCAM or DVCPRO HD) that stores 720p25.
Currently it’s a pure HDV-format.

[Mike Smith]

Thanks, Mactrix.

Have you tried capture / conversion to DVCProHD? I’m wondering whether it works / holds sync / is reasonably quick? If it works, then there’s no need ever to go back to (or store) the hdv / m2t stream …

On the 25p side, though, I think Sony have had an HDCAM model to shoot this since a while back … have a peek at
https://www.sony.com.sg/pro/bp/hdcam/
https://www.sonybiz.net/b2b/sony-business-es/21474-sony-biz-espana-europe-welcomes-25p-hdcam-camcorder.html

There are abvious pluses in delivering into a PAL environment for a using 50i or 25p.

All best

Mike

[Mactrix]

Hi Mike,

No, I don’t use Lumiere because I couldn’t find it
usefull when I understood the workflow. I can
convert footage using the free MPEGStreamclip,
of course I lose TC-information … so what? I still
can convert again from the original source. In
MPEGStreamclip you have also a chroma
upsampling option built in …

If you want to end up in SD PAL there is no
supported 720p25-workflow because it’s not a
standard video format. You must upconvert to
1080p25 (psf). But if you want a SD-Master why
not converting 720p25 to 576p25 (psf)? The
downconverted video looks great.

If you prefer a 720p25 Master for archive or
later HD-distrubution that I would use a lossless
codec that is resolution/framerate-independent
and YUV-compatible. This could be SheerVideo
from Bitjazz. Of course there are no more
RT-effects in FCP …

Other codecs like DVCPRO HD can work as well
but 25p is not officially supported.