Hi Chris (and list) - The "blurryness" you see is a product of bandwidth. As you increase frame rate or frame size or frame quality, there has to be a tradeoff. That tradeoff is bandwidth required. Unless you raise the bandwidth, one of the other three has to suffer. Generally, it's frame quality. Remember, full NTSC uncompressed video is between 168Mbit/s and 250Mbit/s. You're throwing a LOT away to get it down to a few hundred kbit/s. I haven't messed with the SWF stuff yet... Not my favorite format. Have you tried changing bit depths using v4lctl? I don't know if 8bit is native to SWF or if you can get v4l to cooperate and raise the depth with xawtv-remote or v4lctl. As for your load averages, that's pretty bizzare! It appears that SWF is mjpeg video/mpeg2 audio, according to ffserver atleast. I'm running one input from a bttv card right now, RH 6.2, 933 AMD w/256meg, Xwindows running with two shells and Netscape 4.74. SWF format, 12fps, 300kb/s, 22050hz mono sound at 64kb/s and my load average is 0.80. Are you viewing the video on the same box? How much motion (more motion=more processor to throw away pixels)? Regards, -- Jodie >[mailto:video4linux-list-admin@xxxxxxxxxx]On Behalf Of Chris Kloiber Sent: Saturday, April 14, 2001 6:21 PM To: video4linux-list@xxxxxxxxxx Subject: Re: Streaming bttv webcam? How? Well, I got ffserver to work, sort of. The swf streaming is a cool idea, but it seems to only run in 8bit color. Framerates are very low and processor usage is very high, even if I turn off unneeded formats (1.1Ghz Athlon, 99% cpu, load average as high as 1.9). I don't understand why the picture is so blurry if you increase the framerate above 2. I must have a lot to learn about streaming. At least it works and is simple to set up. I'd like to see controls to change inputs and channels of tuner cards. Thank you all for the info. Chris Kloiber _______________________________________________ Video4linux-list mailing list Video4linux-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/video4linux-list
