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How can I extract audio from video with ffmpeg?
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FWIW, I have crafted a PHP script, so that I just specify the input video file, and it automatically determines the extension of the output audio file: superuser.com/questions/1301901/…
– Gras Double
Jul 22 ...
What's the best way to do a backwards loop in C/C#/C++?
... For the first thing - why not just use end and begin in reverse order?
– Tomáš Zato - Reinstate Monica
Jan 6 '16 at 15:56
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sho...
How do popular apps authenticate user requests from their mobile app to their server?
...e communication between the mobile app and the API server is being done in order to be able to automate attacks against your API. Many other scenarios are possible, but we will not enumerate each one here.
I hope that by now you may already have a clue why the WHO and the WHAT are not the same, but ...
How to check if there exists a process with a given pid in Python?
...t an OSError due to permissions, even if the pid exists in the system.
In order to bypass this limitation you can check if /proc/<pid> exists:
import os
def is_running(pid):
if os.path.isdir('/proc/{}'.format(pid)):
return True
return False
This applies to linux based syst...
Using CSS :before and :after pseudo-elements with inline CSS?
...ich strips anything in <style> tags. See here (zurb.com/ink/inliner.php) for an automator
– kez
Mar 12 '14 at 11:44
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Select 50 items from list at random to write to file
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If the list is in random order, you can just take the first 50.
Otherwise, use
import random
random.sample(the_list, 50)
random.sample help text:
sample(self, population, k) method of random.Random instance
Chooses k unique random elements f...
How to get an enum value from a string value in Java?
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Also see:
Oracle Java Example using Enum and Map of instances
Execution order of of static blocks in an Enum type
How can I lookup a Java enum from its String value
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How to wait until an element exists?
... time when you'd want to use it. Details are at: help.dottoro.com/ljmcxjla.php
– mikemaccana
Dec 3 '12 at 11:48
add a comment
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How do you debug MySQL stored procedures?
...e Text' AS `Title`;
I got this idea from
http://forums.mysql.com/read.php?99,78155,78225#msg-78225
Also somebody created a template for custom debug procedures on GitHub.
See here
http://www.bluegecko.net/mysql/debugging-stored-procedures/
https://github.com/CaptTofu/Stored-procedure-debuggi...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...。
异步的，耗时的数据请求：传统的UDF函数存在的一个问题是，他是同步的，就是说，如果某个函数的执行时间过长，会导致前端界面的卡顿，尤其是在UDF函数访问数据库，WebService，或复杂的计算过程等不确定性及耗时的执行...