Install problem on ubuntu 14.04 "g++: error: unrecognized command line option ‘-mssse3’"

[MEIXuYan]

Thank for your share !

When I install this on Ubuntu,I can't go with "make BACKEND=LIBUVC" ,it comes an error:

"g++: error: unrecognized command line option ‘-mssse3’".

I am new learner of realsense.Can you help me solve this ? Thank you.

[ddiakopoulos]

What is your kernel version (uname -r) and your version of GCC (g++ -v)?

[MEIXuYan]

The computer is not here currently,I will sent you the version information later.
I found the computer is with NVIDIA 4-Plus-1 (4-Plus-1™) ARM® Cortex-A15,not the Intel chip.
Is this the real problem? If so,do you know any mini-pc or embedded hardware platform(if it has to be intel product) can run realsense?
Because I really want to use the depth image on a small robot ,and it can be powered by battery.
Thank you very much.

[MEIXuYan]

kernel version： 3.10.40
GCC version：4.8.4(Ubuntu/Linaro 4.8.4-2ubuntu1~14.04)

[ddiakopoulos]

Hi. The -mssse3 flag instructs GCC to enable SSSE3 x86 instructions which are required by a particular function in our library (yuy2=>RGB conversion in image.cpp). In order to compile without this flag for ARM architectures, you will need to re-write that functionality (a counterpart with NEON acceleration would be ideal, but a simple implementation would suffice).

If you would like to move to x86, there are several products that might meet your needs for small and low power:

• Intel MinnowBoard Max
• Kangaroo MD2B
• Intel NUC
• The forthcoming Intel Compute Stick 2 (available in March 2016)

[ddiakopoulos]

Also, if you need a reference implementation for yuyv to rgb conversion, here is a good source: https://github.com/ktossell/libuvc/blob/master/src/frame.c#L158

[MEIXuYan]

Thank you for your time!

[MEIXuYan]

I try to do yuyv to rgb conversion on ARM these day,but it is too hard for me as a beginner.
Since our robot just need the depth message(get 640X480 depth info array,our robot were based on Kinect One before),can I ignore the rgb data so that I can get depth data without using ssse3?
Is that a feasible scheme? Thank you.

[bobdavies2000]

Yes. You don't need to start or consume the RGB stream.

[MEIXuYan]

Thank you.
have you succeed in transfer it on ARM platform?
My Liunx kenral is v 3.10.40(is that suitable for librealsense?)
Currently I can't build the cpp-tutorial-1-depth.pro in qt,two errors occurs:
1.cstdio : no such file or dictionary
2.it shows no compiler,my gcc can't work (GCC version：4.8.4)