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Improving video quality over encrypted airwaves
I need some tips on how to improve the quality of my streaming video over my satellite internet link. I can put up with the propagation delay (can be up to two seconds) because I only care about one-way transit. I am sending it over the internet and am encrypting (IPSEC) the signal. Bandwidth is about 400K. I am using VLC but I've tried it with other media and still get a blurry picture that has peaks and valleys as far as the quality goes. It is a high end camera that is being used. I've adjusted the bandwidth and frame rate and even the MTU setting of the IP packet and haven't seen much change. I am using Cisco at both ends of the IPSEC tunnel that I'm sending the streaming video thru. There is very little traffic otherwise at the two ends. Since it is going over the internet, I don't think applying QOS in the Cisco devices would help -or I could be wrong.
Can someone give me some other methods to try to improve my video quality? Or is this as good as it gets?
Can someone give me some other methods to try to improve my video quality? Or is this as good as it gets?
ASKER
I thought about QOS but two things come to mind. First, at each end there is very little, almost no other application that is using local bandwidth so the streaming video is pretty much all that is going on. Second, the majority of the path is over the internet and I don't think there is any benefit from applying QOS over the public internet --but, again, am I wrong about this?
Though it was interesting, I didn't see anything in the link that would help. The link had to do with FCC mandates about the future of analog broadcasts. My application is a private IPTV link over a long haul.
So to clarify, there are two things I am still wondering. First, is there a product out there that I can introduce at either end that could improve the video quality (eg. something at the receiving end that could buffer it and apply some predictive coding to enhance...)? Keep in mind since this is non-interactive one-way, I don't mind the propagation delay. Second, is there something in the Cisco end-to-end IPSEC configuration that could be tweaked (eg. MTU size, etc.) that would help?
Though it was interesting, I didn't see anything in the link that would help. The link had to do with FCC mandates about the future of analog broadcasts. My application is a private IPTV link over a long haul.
So to clarify, there are two things I am still wondering. First, is there a product out there that I can introduce at either end that could improve the video quality (eg. something at the receiving end that could buffer it and apply some predictive coding to enhance...)? Keep in mind since this is non-interactive one-way, I don't mind the propagation delay. Second, is there something in the Cisco end-to-end IPSEC configuration that could be tweaked (eg. MTU size, etc.) that would help?
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http://boards.straightdope.com/sdmb/archive/index.php/t-460411.html