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FFmpeg: How to split video efficiently?
...file = 3.14GB DVB transport stream
Conclusion
The single command is better if you are handling HD, it agrees with the manuals comments on using -ss after the input file to do a 'slow seek'. SD files have a negligible difference.
The two command version should be quicker by adding another -ss before ...
Deep Learning（深度学习）学习笔记整理系列之（四） - 大数据 & AI - 清泛...
Deep Learning（深度学习）学习笔记整理系列之（四）Deep_Learning_Series_4Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zo...
Why doesn't C have unsigned floats?
...for the CPU to execute. So it would be very inefficient to support it.
If C++ did support it, then you would be sometimes using an unsigned float and not realizing that your performance has just been killed. If C++ supported it then every floating point operation would need to be checked to see...
How do I make a redirect in PHP?
Is it possible to redirect a user to a different page through the use of PHP?
30 Answers
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Where is the “Fold” LINQ Extension Method?
...next) => prod * next);
See MSDN for more information. It lets you specify a seed and then an expression to calculate successive values.
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How to use SQL Order By statement to sort results case insensitive?
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You can also do ORDER BY TITLE COLLATE NOCASE.
Edit: If you need to specify ASC or DESC, add this after NOCASE like
ORDER BY TITLE COLLATE NOCASE ASC
or
ORDER BY TITLE COLLATE NOCASE DESC
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Vim Regex Capture Groups [bau -> byau : ceu -> cyeu]
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If you don't want to escape the capturing groups with backslashes (this is what you've missed), prepend \v to turn Vim's regular expression engine into very magic mode:
:%s/\v(\w)(\w\w)/\1y\2/g
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jQuery: keyPress Backspace won't fire?
...s backspace, keypress doesn't -> weird. is there a chance to also check if two keys are pressed like cmd-c, or cmd-v, or cmd-a
– matt
Jan 14 '11 at 11:28
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Get integer value of the current year in Java
... get the year in your system's default time zone), you could use the Year::now method:
int year = Year.now().getValue();
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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... by dragging a block and adding corresponding actions they want when a specific event occurs.
Unlike the traditional text-based programming, MIT App Inventor introduces an event-driven programming model. “Event” is a concept in computer science which refers to the user’s action, such as touch...