60 fps ps3 eye cam linux

[runningman84]

My framerate does not go above 30 even if I select 60 fps in the point tracker settings. Are 60 fps not supported on Linux?

[sthalik]

They are. Just checked, works for me. Do the settings persist, or is there a bug where the UI values reverts back to 30?

For diagnostics, try another trackers or the "qv4l2" utility.

[runningman84]

Ok qv4l2 doesn't get above 30 fps in 640x480 too. I use ubuntu 1310 which doesn't seem to include a patched driver which supports 60 fps. How do you get 60fps?

Btw. insted of the two text fields for the resolution I would recommend a drop down box with resolutions like
640x480
320x240
...

Right now opentrack crashes if you enter invalid resolutions like 639x480... this is not very user friendly.

[sthalik]

What's your kernel version? You can build your own kernel with make-kpkg and the like.

Care has been taken to avoid crashes when camera fails to become opened. It's probably an issue with Canonical-supplied libv4l but I'll double-check.

[sthalik]

Thanks for the report! Merging hysteresis support broke changing resolution on the fly. Fixed in master.

[runningman84]

This is my running kernel version:
3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 07:38:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

[sthalik]

That's unusual. Worked for me back when 3.11 was git only...

[sthalik]

closing cantfix/abandoned

[edwin-v]

Interesting to find this closed. I still can't get my ps3eye to do 60 fps at 640x480. It's not the driver or anything because linuxtrack does 60 fps just fine. Is there anything specific that causes this? Maybe it's specific to the point tracker?

[sthalik]

In OpenCV in cmake/OpenCVFindLibsVideo.cmake, find this block:

# --- V4L ---
ocv_clear_vars(HAVE_LIBV4L HAVE_CAMV4L HAVE_CAMV4L2 HAVE_VIDEOIO)
if(WITH_V4L)
  if(WITH_LIBV4L)
    CHECK_MODULE(libv4l1 HAVE_LIBV4L1)
    CHECK_MODULE(libv4l2 HAVE_LIBV4L2)
    if(HAVE_LIBV4L1 AND HAVE_LIBV4L2)

change it to:

# --- V4L ---
ocv_clear_vars(HAVE_LIBV4L HAVE_CAMV4L HAVE_CAMV4L2 HAVE_VIDEOIO)
if(WITH_V4L)
  if(WITH_LIBV4L)
    CHECK_MODULE(libv4l1 HAVE_LIBV4L1)
    CHECK_MODULE(libv4l2 HAVE_LIBV4L2)
    if(HAVE_LIBV4L2)

Modern distros don't ship libv4l1 anymore and failing this check makes it use inferior opencv capture module.

[edwin-v]

It doesn't appear to work.

I recompiled everything and I get the following error:

VIDEOIO ERROR: V4L: setting property #5 is not supported

Which is the FPS iirc.

[sthalik]

Then you don't have libv4l2-dev installed.

[edwin-v]

Good call, it works now.

A wiki page with a few of those build details would probably help a lot.

[sthalik]

Linux users are assumed to be familiar with programming. The software runs on Linux to use Linux development tools, like Valgrind, also to increase code quality by using portable calls. We don't support Linux as an OS for end-users with fully-blown instructions or binaries.

[sthalik]

Filed an issue at http://code.opencv.org/issues/4471