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jobschen - 01 Aug 2008, 06:54 am
now more and more manufacture has PCI-E card, is it really necessary?
DVR Cards and Software - PC Based Systems
»PCI CARD AND PCI-E card?
( >> )CollinR - 01 Aug 2008, 10:21 am
Depends.
How is the encoding done? How many channels of video? On the card transcoding? On the card analytics?
I think this is more for software encoders then anything else, they transfer uncompressed video to the CPU for each channel captured.
How is the encoding done? How many channels of video? On the card transcoding? On the card analytics?
I think this is more for software encoders then anything else, they transfer uncompressed video to the CPU for each channel captured.
Thomas - 01 Aug 2008, 10:52 am
QUOTE:
now more and more manufacture has PCI-E card, is it really necessary?
now more and more manufacture has PCI-E card, is it really necessary?
Yes. There are throughput issues when dealing with standard PCI busses. it's not very hard to reach them. Moving to the PCI-E bus allows for greater use of software compression, a better choice in the long term over hardware compression.
destro_23 - 01 Aug 2008, 07:32 pm
QUOTE:
Moving to the PCI-E bus allows for greater use of software compression, a better choice in the long term over hardware compression.
Moving to the PCI-E bus allows for greater use of software compression, a better choice in the long term over hardware compression.
With that being said.. is it just me that notices quality goes down slightly on hardware compression cards? vs Software compression?
Thomas - 01 Aug 2008, 08:06 pm
[quote:9415181d6c="destro_23"]
With that being said.. is it just me that notices quality goes down slightly on hardware compression cards? vs Software compression?
QUOTE:
Moving to the PCI-E bus allows for greater use of software compression, a better choice in the long term over hardware compression.
Moving to the PCI-E bus allows for greater use of software compression, a better choice in the long term over hardware compression.
With that being said.. is it just me that notices quality goes down slightly on hardware compression cards? vs Software compression?
It tends to depend on the quality of the codec used for the hardware and software. It's easier to get a better picture out of a software codec, you can allow for greater use of resources. And over time you can upgrade a software codec.