tasanakorn / rpi-mmal-demo Goto Github PK

please edit Read Me to read cmake ../ not cmake ..

confusing typo

-- The C compiler identification is GNU 4.6.3
-- The CXX compiler identification is GNU 4.6.3
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /root/mydem/rpi-mmal-demo/build
Scanning dependencies of target mmal_buffer_demo
[ 25%] Building C object CMakeFiles/mmal_buffer_demo.dir/buffer_demo.c.o
Linking C executable mmal_buffer_demo
[ 25%] Built target mmal_buffer_demo
Scanning dependencies of target mmal_opencv_demo
[ 50%] Building C object CMakeFiles/mmal_opencv_demo.dir/opencv_demo.c.o
Linking C executable mmal_opencv_demo
/usr/bin/ld: cannot find -lvgfont
collect2: ld returned 1 exit status
make[2]: *** [mmal_opencv_demo] Error 1
make[1]: *** [CMakeFiles/mmal_opencv_demo.dir/all] Error 2
make: *** [all] Error 2

I have this issue with opencv_demo.c. How to change the fullscreen preview to a windowed one? Ive been fiddling around the code, but cant seem to get ir right.

Thanks.

Please could you add:
description to what this code does?

and minimum requirements to duplicate the excellent youtube demo
https://twitter.com/Tasanakorn/status/3 ... 85/photo/1

my experience:
frame update ~1frame every few seconds,
please note there is no camera or other movement at all in your test

stdout visible behind top and bottom of screen
no cairo overlay visible afaict
after ^c text font garbled, so for instance to shutdown after test is difficult, though possible
no video recorded??
how to set length of time to record?

I followed the directions with the readme file but when I get to doing the

cmake ../

in the Step 4: Build section it reports:

CMake Error: The source directory "/home/pi/src/raspberrypi" does not appear to contain CMakeLists.txt.

How do I correct that?

hi
thank you for your great project.
does your program work on pi zero? when i execute opencv_demo i get 9.3 fps but it do not detect any faces!can you guide me please?

when I use ^c to close video_record, I have to reboot to use again...

Running...

is as far as the program gets....

please advise