Hmm.. I was thinking in using Motion with the card I have here. I'll give a better look on it this week. Thanks for all the feedback, Lucas On Sunday 20 July 2003 22:59, Ryan Ayers wrote: > I can get those fps also, however, the image isn't settled down by then. > With the motion package, or any similar, you just record all the time > because it things there is activity on the camera when there is not. > > Ryan > > > -----Original Message----- > > From: video4linux-list-admin@xxxxxxxxxx > > [mailto:video4linux-list-admin@xxxxxxxxxx]On Behalf Of Ed Okerson > > Sent: Sunday, July 20, 2003 7:12 PM > > To: video4linux-list@xxxxxxxxxx > > Subject: RE: multiple open()'s on the same device > > > > On Sun, 20 Jul 2003, Ryan Ayers wrote: > > > > From: Christian Hack > > > > I still stand by my statement. Does the windows version > > > > capture full motion > > > > > > on all 4 channels. The only simultaneous capture cards I have > > > > seen have a > > > > > > different capture chip or have more than one capture chip fitted. > > > > > > > > Feel free to prove me wrong though. ;-) > > > > > > > > CH > > > > > > I've spoken with Gerd about this previously. The only way todo > > > > this with > > > > > the current linux bttv driver, is to switch inputs (very slowly). > > > Generally, this means, grab 1 frame, switch and skip 5 frames > > > > (waiting for > > > > > the video device to settle down). This gives a realistic throughput of > > > about 2 fps switching between 2 inputs. This is totally > > > > unacceptable for a > > > > > surveillance solution. There is some trickery going on in the windows > > > driver, because the exact same card with the windows driver can capture > > > around 10-15fps across 2 inputs. > > > > I have successfully used the package at http://motion.sourceforge.net to > > get much better switching between ports on bttv based cards. It uses the > > vloopback device to attach different inputs to virtual /dev/video > > devices. I had no problems getting 13-15fps from two inputs, and 8-10fps > > from three inputs. > > > > Ed Okerson > > > > > > -- > > video4linux-list mailing list > > Unsubscribe > > mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > > https://www.redhat.com/mailman/listinfo/video4linux-list > > -- > video4linux-list mailing list > Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/video4linux-list
