On Sun, 9 Dec 2001, Justin Schoeman wrote: > Canek Pel�ez Vald�s wrote: > > > using "v4l2=1" when loading bttv. NVrec says: > > > > [canek@mediana canek]$ QTrec -v /dev/video0 -o movie.mov > > Starting NVrec.c, version 20011208 (NVrec-20011208). > > Error opening "/etc/NVrec.conf" > > Error opening "/home/canek/.NVrec.conf" > > v4lgen core init - Device /dev/video0 > > v4l2 core init - Size: 384x288 from /dev/video0 > > v4l2 core init - trying format YUV420 > > v4l2 core init - could not request parameters: Invalid argument > > v4l1 core init - Size: 384x288 from /dev/video0 > > v4l1 core init - could not get enough buffers - using copy mode > > v4l1 core init - got 8 buffers > > v4l1 core init - emulating 60 buffers > > v4l1 core init - trying video format YUV420 > > v4lgen core init - got capable v4l1 device: BT878([many vendors] CPH05X/0). > > > > Any way to force it to use V4L2? > > No - it seems the v4l2 driver does not support the complete v4l2 > interface. Without this information, NVrec cannot initialise the v4l2 > driver, and must fall back to v4l1. > > I believe a patch to implement the missing functions has been submitted > to Gerd, and will hopefully be included soon. Hi Justin, This problem can be easily fixed in NVrec - Gerd's 0.8 bttv requires that you open the /dev/video O_RDWR and do the mmap with PROT_READ|PROT_WRITE. Those two changes and NVrec with work with 0.8. Do you want a patch? Steve
