Dan Streetmanwrote on Tue, 12 Jun 2007 20:23:03 -0400

> On 6/12/07, Terje J. Hanssen <[EMAIL PROTECTED]> wrote:

> > Q3) dvgrab with "hdv patch" for 422 mpeg-2/-4

> > Is the mentioned "hdv patch" for dvgrab limited to capture HDV mpeg2 of

> > [EMAIL PROTECTED] (4:2:0) only, or can it capture all types of mpeg2, also 
> > higher

> > HD of [EMAIL PROTECTED] and [EMAIL PROTECTED]

>

> The hdv patch for dvgrab does only iec13818-1 (transport

> stream/container) and partial iec13818-2 (mpeg video)

> decoding/parsing, specifically it does not parse into any slices or

> macroblocks.  Further, it does not do any stream modifications, the

> data is simply passed through to a file with parsing needed only to

> internally delineate frames and get stream/video metadata.

>

> Given all that, I've only seen cameras that transfer HDV mpeg2 (4:2:0)

> over firewire, do you have one that does something else?

My starting point was a possible new, external MPEG-2/1394 converter I
have suggested some features for. If it becomes enabled with HDMI IN, it
could convert uncompressed 4:2:2 video directly from i.e Sony FX7/V1
(tapeless) and next to hard disk over 1394.
As mentioned the new Sony XDCAM HD (PDW-F355 camcorder with optical disk
and PDW-F75 deck) are based on this 4:2:2 50Mbps MPEG-2. I don't know if
they also can use i.Link for this file transport to harddisk.
http://news.sel.sony.com/en/press_room/b2b/broadcast_production/content_create_edit/release/29851.html

--Terje



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