streaming bandwidth question

Questions? Suggestions? Need help? Talk about anything related to Yawcam...
Post Reply
cklauss

streaming bandwidth question

Post by cklauss »

How high is the used bandwidth in kilobit for 1 visitor when streaming with 10fps, 320x240 resolution and 75% Quality? (RGB:320x240)

searching the Forum told me about 20kbit, this isn't true, is it?

thanx,
christoph
Jii
Posts: 30
Joined: Wed Sep 08, 2004 10:46 am

Post by Jii »

How high is the used bandwidth in kilobit for 1 visitor when streaming with 10fps, 320x240 resolution and 75% Quality? (RGB:320x240)

searching the Forum told me about 20kbit, this isn't true, is it?
It depends on the FPS rate. Streaming at a steady rate of 25-30 at 320x240 in 75% will result in a bandwidth consumation of about 20kbits/sec.

Now... Don't get confused about the definition of a kilobit and a kiloByte. 20kbit/sec roughly equals 2kBytes/second. :)

If you want to reduce the bandwidth consumation, consider dropping the quality from 75% to somewhere between 50% and 67%, since it will not affect the quality of stream too much. Anything smaller than 50% will likely spoil the streaming image. If you don't want to reduce the picture quality that much, consider dropping the picture size smaller.
cklauss

Post by cklauss »

thx!!

I'm impressed! Never thought it is only 20kbits!
Thought about 150 to 250kbit...
Guest

Post by Guest »

cklauss wrote:thx!!

I'm impressed! Never thought it is only 20kbits!
Thought about 150 to 250kbit...
This can't be right.

320pixels x 240pixels x 8bits/pixel=614400 bits/frame

What kind of compression is being used?
Guest

Post by Guest »

No reply ?? thats what I thought. This thing *will* use all your upstream bandwidth even the cable and dsl users.
The programmer needs to put in an effective bandwidth throttle mechanism.
Post Reply