mjpg-streamer compile issue about mjpg-streamer

[jacksonliam]

Hmmm which version of v4l do you have?

[MrDini123]

I have old git 20110614 version, because this is the last release which supports uvcvideo with this old kernel.

[jacksonliam]

Hmmm, It might be possible to conditionally #define out the lines its complaining about based on v4l version, but Its not work I'm going to do, mainly because I don't have anything with a kernel like that to test on.

For your purposes, edit mjpg-streamer/mjpg-streamer-experimental/plugins/input_uvc/input_uvc.c
and delete lines
90:
{ "auto", V4L2_CID_POWER_LINE_FREQUENCY_AUTO }
569
V4L_INT_OPT(V4L2_CID_ROTATE, rot, "rotation")

Should work without those as long as you don't try to use those options.

[MrDini123]

Yes, it worked.

Another error now...:

[ 73%] Building C object plugins/output_file/CMakeFiles/output_file.dir/output_file.c.o
/i-data/bf835951/build/mjpg-streamer/mjpg-streamer-experimental/plugins/output_file/output_file.c: In function 'output_init':
/i-data/bf835951/build/mjpg-streamer/mjpg-streamer-experimental/plugins/output_file/output_file.c:503:28: error: 'V4L2_CTRL_TYPE_STRING' undeclared (first use in this function)
  filename_ctrl.ctrl.type = V4L2_CTRL_TYPE_STRING;
                            ^
/i-data/bf835951/build/mjpg-streamer/mjpg-streamer-experimental/plugins/output_file/output_file.c:503:28: note: each undeclared identifier is reported only once for each function it appears inplugins/output_file/CMakeFiles/output_file.dir/build.make:54: recipe for target 'plugins/output_file/CMakeFiles/output_file.dir/output_file.c.o' failed
make[2]: *** [plugins/output_file/CMakeFiles/output_file.dir/output_file.c.o] Error 1
CMakeFiles/Makefile2:305: recipe for target 'plugins/output_file/CMakeFiles/output_file.dir/all' failed
make[1]: *** [plugins/output_file/CMakeFiles/output_file.dir/all] Error 2
Makefile:117: recipe for target 'all' failed
make: *** [all] Error 2

[jacksonliam]

Do you plan to use the file output plugin?

You can probably delete that line too (mjpg-streamer/mjpg-streamer-experimental/plugins/output_file/output_file.c line 503)

But I'm not sure what in that plugin will break without looking tracing it properly (on phone atm)

[MrDini123]

No, how Can I disable it?

And one more thing! After the cmake it said, the http managment is disabled... So how Can enable it manualy?

Thanks!

[jacksonliam]

Did removing the line not work?
I think you can just remove 'add_subdirectory(plugins/output_http)' from CMakeLists.txt

HTTP management is an experimental feature to allow you to change properties (e.g. framerate) on the fly. I'm not sure it's working now (no one has worked on it for a long time) so it's disabled now. It's seperate from the streaming feature (output_http)

Cheers, Liam.

[MrDini123]

I don't tried the line removing. I thought remove the whole module, if it is unneded and not works on my nas...

But now, I am trying to compile a newer v4l and look what happens.

[MrDini123]

Thanks for Your help!

With the media build headers and with my kernel headers specified at the cmake command, I Could built it without uncommenting lines from source. :)

Cool, will try it with a camera tomorrow!

[MrDini123]

Now, I could try it with my cameras. Works nicely. And I surprised, because I Cannot see the mjpg at the top's output... With motion, I had ~25% CPU busy.... With one cam. Nice!

Is it works with gspca drivers too?

Thanks a lot!