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How can I extract a good quality JPEG image from a video file with ffmpeg?
...ale:v (or the alias -q:v) as an output option.
Normal range for JPEG is 2-31 with 31 being the worst quality.
The scale is linear with double the qscale being roughly half the bitrate.
Recommend trying values of 2-5.
You can use a value of 1 but you must add the -qmin 1 output option (because the d...
How to create the most compact mapping n → isprime(n) up to a limit N?
...number with one bit e.g. for the given range of numbers (1, 10], starts at 3: 1110
31 Answers
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Change the Right Margin of a View Programmatically?
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answered Dec 17 '10 at 16:30
Kevin CoppockKevin Coppock
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Given an emacs command name, how would you find key-bindings ? (and vice versa)
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edited Sep 18 '19 at 14:38
answered Jun 8 '09 at 14:54
Ad...
JSON.net: how to deserialize without using the default constructor?
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Json.Net prefers to use the default (parameterless) constructor on an object if there is one. I...
Bower and devDependencies vs dependencies
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edited Oct 13 '13 at 2:08
answered Oct 13 '13 at 1:52
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Remove/Add Line Breaks after Specific String using Sublime Text
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and Windows/Linux (untested):
Control+F > type string > Alt+F3 > ESC > Right Arrow > line break
The important part being Control+Command+G to select all matches.
Once you've selected the text you're looking for, you can use the provided multiple cursors to do whatever text m...
Which version of PostgreSQL am I running?
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edited Oct 24 '17 at 3:42
answered Dec 5 '12 at 22:42
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Which UUID version to use?
...eed to always generate the same UUID from a given name, you want a version 3 or version 5.
Version 3: This generates a unique ID from an MD5 hash of a namespace and name. If you need backwards compatibility (with another system that generates UUIDs from names), use this.
Version 5: This generates ...
LIKE vs CONTAINS on SQL Server
..._Unbeliever
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