Hi Steve, with changes you mentioned nothing changed for me :-( Starting NVrec.c, version 20011228 (NVrec-20011228). v4lgen core init - Device /dev/v4l/video0 v4l2 core init - Size: 384x288 from /dev/v4l/video0 v4l2 core init - trying format YUV420 v4l2 core init - could not request parameters: Invalid argument [v4l2_core.c] ... vct->fd = open(fdev, O_RDWR); ... vct->bufs[i * vct->planes] = (unsigned char *)mmap(NULL, vct->cbuf.length, PROT_READ|PROT_WRITE, MAP_SHARED, vct->fd, vct->cbuf.offset); ... Something missed? Regards, Dirk Am Don, 2001-12-27 um 21.15 schrieb Stephen Davies: > > > On Sun, 9 Dec 2001, Justin Schoeman wrote: > > > Canek Peláez Valdés 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 > > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list -- Dirk Meul <dirk.meul@xxxxxxxx>
