[AG-TECH] AG hardware improvements and HD content sharing
gskpop
gskpop at cis.rit.edu
Sun Feb 11 17:33:16 CST 2007
Christoph Willing wrote:
> Compressed HDV directly from cameras has a latency of about half a
> second. That is acceptable for non-interactive sessions (and perhaps
> _some_ interactive sessions).
Chris, is this true of all HDV cameras? I thought it was higher. Is it
true for the Sony HC-7 that sells for about $1400? I was
trying one out but got different latencies--probably depends on the
application involved. I was using it with ExtendedVideoService module
that Sang Woo Han/GIST is working on for the WindowsXP platforn.
> We have recently developed a new version of vic with DV and HDV
> capture & display capability. The Linux version is working well and
> the Windows port is just about to begin.
Can I get hold of the linux version to start playing with it? I am
installing some public "portals" on campus that will
be always on, persistent video/audio for "one on one" ad hoc
communication and want to use the best quality video I can. I may have
to start with DVTS but pending funding I'd like to move to HDV and
eventually to uncompressed HD.
Thanks,
-gurcharan
>
> Uncompressed HDV would be ideal, but the bandwidth required is around
> 1 Gb/s - not a realistic proposition for most networks. Bandwidth of
> the compressed streams is around 30Mb/s, so you can have multiple HDV
> streams on a good network (if you can tolerate the latency). Also, the
> HD YUV capture cards cost thousands of dollars.
>
>
> chris
>
>
>
> Christoph Willing +61 7 3365 8350
> QCIF Access Grid Manager
> University of Queensland
>
>
>
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