You're preloading the wrong library. The following two are made for preload:
/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so
/usr/lib/x86_64-linux-gnu/libv4l/v4l2convert.so
V4L1 applications need v4l1compat.so, newer and V4L2 compatible ones
need v4l2convert.so
** Changed in: v4l-utils (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1385152
Title:
jpgl support in libv4lconvert is missing
Status in “v4l-utils” package in Ubuntu:
Invalid
Bug description:
Seems support for the jpgl palette has been around in v4lconvert since 2011
or so, but is not present in the ubuntu version.
Is there an easy way I can add that so I can get my old webcam working on
ubuntu?
I'm trying to use the cam with either"motion" or "fswebcam".
I tried this on an up to date 14.04LTS:
# v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'JPGL' (compressed)
Name : JPGL
Size: Discrete 320x240
Size: Discrete 640x480
# LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libv4lconvert.so.0.0.0 fswebcam
--- Opening /dev/video0...
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
Unable to find a compatible palette format.
#
Regards
PeO
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