Simeon Miteff (smiteff@xxxxxxxxxxx): > When using xawtv with my LifeView Flyvideo 3000 I get regularly spaced > horizontal blurred lines across the image. These lines appear on parts > of the frame that are changing (ie, where a person is walking). The > lines are less apparent when the image is smaller (scaled down by > dragging the window to a smaller size). > > I've tried upgrading the saa7134 driver, upgrading xawtv, and fiddling > with just about everything I can find (like trying different Capture > modes), but nothing seems to make this problem go away. I've also read > through the list archives and haven't found anyone with a similar > problem. I apologize in advance if this question has in fact been > answered before. You're likely seeing artifacts relating to the interlaced nature of the video source being displayed without framerate conversion. How about you try using a TV viewing application which can perform some sort of deinterlacing. I am the author of 'tvtime', an app which does this: http://tvtime.sourceforge.net/ A raw interlaced frame looks like this: http://tvtime.sourceforge.net/screenshots/27-oct-02-interlaced-75.jpg Is that what you are seeing? Regarding the saa7134 driver, I recommend you use the latest snapshot as it fixes some known bugs in the 0.2.6 release of the driver. > http://www.cs.up.ac.za/~smiteff/tv/ tv1.jpeg <- captured with xawtv's J > function. Shows black lines. These black lines appear in the captured image > regardless of how big the xawtv window is resized. I have no idea what might be causing this. > I'm using saa7134 version 0.2.6 with xawtv 3.86 on linux 2.4.18 with > XFree86 4.2.0 and NVIDIA_kernel-1.0-2960. As a warning, I recommend against using xawtv's 'overlay' mode with the nvidia drivers in particular, it is unsafe due to a flaw in the design of 'overlay' mode, and we have seen odd behavior as well as system crashes both before, and after running xawtv in overlay mode. If you must use xawtv, use its XVideo mode (X "v4l" module) or grabdisplay mode. -- Billy Biggs vektor@xxxxxxxxxxxx
