[gstreamer-bugs] [Bug 595340] gst-plugins-good-0.10.16 and libv4l-0.6.1
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Fri Sep 18 01:03:45 PDT 2009
https://bugzilla.gnome.org/show_bug.cgi?id=595340
GStreamer | gst-plugins-good | 0.10.16
--- Comment #5 from Jarkko Palviainen <jarkko.palviainen at sesca.com> 2009-09-18 08:03:43 UTC ---
I have also kernel version 2.6.31.
Yeah, it seems to be related to the kernel. Looking at the the first warning:
gstv4l2object.c:842: warning: implicit declaration of function '_IOWR'
line:842:
if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_ENUM_FMT, format) < 0) {
A bit investigation for the second parameter:
$ cat /usr/include/linux/videodev2.h |grep VIDIOC_ENUM_FMT
#define VIDIOC_ENUM_FMT _IOWR('V', 2, struct v4l2_fmtdesc)
Following a few headers, I find /usr/include/asm-generic/ioctl.h:
#define _IOWR(type,nr,size)
_IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
That stuff is coming from linux-kernel-headers package (provided by
linux-libc-dev in Ubuntu 9.10).
You could mention your distribution and someone else with the same one might
try it out.
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