dasl-

(57.617-50.337)/57.617 = 12.6%

BEFORE:
   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
   1038/1    0.042    0.000   63.622   63.622 {built-in method builtins.exec}
        1    0.000    0.000   63.622   63.622 video:2(<module>)
        1    0.004    0.004   60.960   60.960 videoprocessor.py:56(process_and_play)
        1    0.999    0.999   60.954   60.954 videoprocessor.py:104(__process_and_play_video)
     1776    0.011    0.000   57.617    0.032 videoplayer.py:25(playFrame)
     1776    7.538    0.004   52.474    0.030 videoplayer.py:41(__setFramePixels)

dasl-

  python3 -m cProfile -s cumtime video --url https://www.youtube.com/watch?v=AxuvUAjHYWQ --color-mode color 2>/dev/null | grep -v '2019-07-06' | head -15 && python3 -m cProfile -s cumtime video --url https://www.youtube.com/watch?v=AxuvUAjHYWQ --color-mode bw 2>/dev/null | grep -v '2019-07-06' | head -15 && python3 -m cProfile -s cumtime video --url https://www.youtube.com/watch?v=AxuvUAjHYWQ --color-mode r 2>/dev/null | grep -v '2019-07-06' | head -15 && python3 -m cProfile -s cumtime video --url https://www.youtube.com/watch?v=AxuvUAjHYWQ --color-mode g 2>/dev/null | grep -v '2019-07-06' | head -15 && python3 -m cProfile -s cumtime video --url https://www.youtube.com/watch?v=AxuvUAjHYWQ --color-mode b 2>/dev/null | grep -v '2019-07-06' | head -15

Comparing videoplayer::playFrame speeds with https://github.com/dasl-/lightness/commit/4de4dcab9dbdab18c4cd3b6d82a3b7a48b8173b0 :

  COLOR: (52.464 - 30.186)/52.464 = 42% faster
  BW: (55.319 - 35.988) / 55.319 = 35% faster
  R: (39.269-29.927)/39.269 = 24% faster

dasl-

curl -o /home/pi/clang+llvm-8.0.0-armv7a-linux-gnueabihf.tar.xz http://releases.llvm.org/8.0.0/clang+llvm-8.0.0-armv7a-linux-gnueabihf.tar.xz 
tar -xf /home/pi/clang+llvm-8.0.0-armv7a-linux-gnueabihf.tar.xz
rm /home/pi/clang+llvm-8.0.0-armv7a-linux-gnueabihf.tar.xz
mv /home/pi/clang+llvm-8.0.0-armv7a-linux-gnueabihf clang_8.0.0
sudo mv /home/pi/clang_8.0.0 /usr/local
printf 'PATH=/usr/local/clang_8.0.0/bin:$PATH\nLD_LIBRARY_PATH=/usr/local/clang_8.0.0/lib:$LD_LIBRARY_PATH' | sudo tee /etc/profile.d/clang_8.0.0.sh
sudo -i pip3 install numba

dasl-

sudo apt-get install bluealsa 
bluetoothctl
power on
agent on
scan on
pair XX:XX:XX:XX:XX
trust XX:XX:XX:XX:XX
connect XX:XX:XX:XX:XX
quit

dasl-

  diff --git a/lightness/videoprocessor.py b/lightness/videoprocessor.py
index 7a75480..d6d7615 100644
--- a/lightness/videoprocessor.py
+++ b/lightness/videoprocessor.py
@@ -100,11 +100,12 @@ class VideoProcessor:
     def __process_and_play_video(self, video_player):
         self.__do_pre_cleanup()
 
-        fps = self.__calculate_fps()
+        # fps = self.__calculate_fps()

dasl-

time to first LED lights with two youtube-dl calls (seconds)
21
14
14
11
14
14
11
12
13

dasl-

{
    "custom_video_args": "--flip-x"
}

dasl-

pi@raspberrypi:~/lightness $ sudo npm run build --prefix /home/pi/lightness/app
(node:20378) [DEP0022] DeprecationWarning: os.tmpDir() is deprecated. Use os.tmpdir() instead.
npm ERR! Error: ENOENT: no such file or directory, open '/home/pi/lightness/package.json'
npm ERR! If you need help, you may report this *entire* log,
npm ERR! including the npm and node versions, at:
npm ERR!     <http://github.com/npm/npm/issues>

npm ERR! System Linux 4.19.56-v7+
npm ERR! command "/usr/bin/node" "/usr/bin/npm" "run" "build" "--prefix" "/home/pi/lightness/app"
npm ERR! cwd /home/pi/lightness

dasl-

pi@raspberrypi:~/lightness $ ./install/install.sh

> [email protected] build /home/pi/lightness/app
> react-scripts build

sh: 1: react-scripts: not found
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn

dasl-

{
    "server_config": {

    },
    "video_settings": {
        "flip_x": true,
        "flip_y": true
    }
}