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import ffmpeg

(
    ffmpeg
    .input('D:\\P\\ffmpeg-20190702-231d0c8-win64-static\\bin\\xiaoice_360p.mp4', re=None)
    .audio
    .filter('aderivative')
    .output('rtmp://localhost/live/test', f='flv')
    .run()
)

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import argparse

# config parser
parser = argparse.ArgumentParser()
parser.add_argument("mesh")
parser.add_argument("-f", "--framefield", default="")
parser.add_argument("-n", "--quadnum", type=int, default=500)

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<ServerManagerConfiguration>
  <ProxyGroup name="filters">
    <!-- ================================================================== -->
    <SourceProxy name="DistancePolyDataFilter" class="vtkDistancePolyDataFilter" label="DistancePolyDataFilter">
      <Documentation
         long_help="Computes the signed distance from one vtkPolyData to another."
         short_help="vtkDistancePolyDataFilter.">
      </Documentation>

      <InputProperty

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%% copy from ocw.mit.edu
%% random matrix theory

%n=20; s=30000; d=.05; %matrix size, samples, sample dist
n=10; s=1000; d=.05; % s=30000 is too slow
e=[]; %gather up eigenvalues
im=1; %imaginary(1) or real(0)

for i=1:s,
  a=randn(n)+im*sqrt(-1)*randn(n);a=(a+a')/(2*sqrt(2*n*(im+1)));

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%% f2d.m
function f2d(A)
  x=0:0.05:3*pi;
  [X, Y]=meshgrid(x);
  F=zeros(size(X));

  min_val = inf;
  min_coord = [0 0];
  max_val = -inf;
  max_coord = [0 0];

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#include <iostream>
#include <exception>
#include <fstream>
#include <string>
using namespace std;

int main(int argc, char const *argv[]) {
  if (argc < 2) {
    cout << "Usage: "  << argv[0] << " filename.txt" << endl;
    return 0;

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import keyboard
import time
from tkinter import *

class Clock(Tk):
    def __init__(self, master=None):
        Tk.__init__(self, master)
        self.wm_attributes("-topmost", 1)
        self.createWidgets()

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find . -name "*.zip" | while read filename; do unzip -o -d "`dirname "$filename"`" "$filename"; done;

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sed -e 's,^,^,' -e 's,$,$,'  filelist  > newfilelist 

cd your_directory
ls | egrep -vf newfilelist   | xargs -n 1 echo rm  >  rmscript

#If the files have spaces in their name (if the files have the " in the name that will not works) :
ls | egrep -vf newfilelist  | sed 's,^\(.*\)$,rm "\1",' > rmscript

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//!Makefile, replace $USER with your name
//INC=-I/home/$USER/libs/libigl/include -I/home/$USER/libs/eigen3
//all:
//	g++ -std=c++11 $(INC) voxel.cpp -o voxel.out

#include <igl/bounding_box.h>
#include <igl/readOBJ.h>
#include <igl/writeOFF.h>
#include <string>
#include <vector>