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How to add a new audio (not mixing) into a video using ffmpeg?
...filter allows you to choose the desired channel layout (mono, stereo, 5.1, etc) and the sample rate.
ffmpeg -i video.mp4 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 \
-c:v copy -shortest output.mp4
Also see
Combine two audio streams into one
FFmpeg Wiki: Audio Channel Manipulation...
onclick() and onblur() ordering issue
...ck being called - if the button performs a non-Pure function (delete, post etc) you might want to preserve this and go with the flag approach.
– Brizee
Nov 19 '17 at 14:03
2
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Move existing, uncommitted work to a new branch in Git
...ed usage of checkout (switching branches, restoring files, detaching HEAD, etc.)
Starting with this version of Git, replace above's command with:
git switch -c <new-branch>
The behavior is identical and remains unchanged.
...
what is the basic difference between stack and queue?
...are stored on a stack.
High-level programming languages such as Pascal, c, etc. that provide support for recursion use the stack for bookkeeping. Remember in each recursive call, there is a need to save the current value of parameters, local variables, and the return address (the address to which th...
Node.js app can't run on port 80 even though there's no other process blocking the port
...
Short answer: You can allow node access to that port using:
setcap 'cap_net_bind_service=+ep' /path/to/nodejs
long answer
Edit:
May not work on new node versions
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How to add to the PYTHONPATH in Windows, so it finds my modules/packages?
...han_amn I mean the wrapping directory that contains the lib, bin, libexec, etc. Typically these directories are named Python[VERSION_NUMBER]/, but I have also seen python/[VERSION_NUMBER]. Hope this helps
– Delicia Brummitt
May 11 '17 at 14:18
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Xcode 5 & Asset Catalog: How to reference the LaunchImage?
...tually an asset catalog on the device. If you look using iFunBox/iExplorer/etc (or on the simulator, or in the build directory) you can see the final names, and then write code to use them - eg. for an iOS7-only iPhone-only project, this will set the right launch image:
NSString *launchImage;
if (...
How do you run a SQL Server query from PowerShell?
...For anyone wondering, to dispose an object, just add $connection.dispose() etc. I don't know if it makes any difference though
– Nick.McDermaid
Aug 15 '17 at 11:34
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What's the best way to convert a number to a string in JavaScript? [closed]
... string (in terms of speed advantage, clarity advantage, memory advantage, etc) ?
23 Answers
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A numeric string as array key in PHP
...andled as string since these were names for input fields (as in shoe sizes etc,..)
When I used $data = array_merge($data, $extra); PHP would 're-order' the keys. In an attempt doing the ordering, the integer keys (I tried with