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How can I extract a good quality JPEG image from a video file with ffmpeg?
...be console output can tell you if your input is MJPEG:
$ ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1 input.avi
codec_name=mjpeg
Then you can extract the frames using the mjpeg2jpeg bitstream filter:
$ ffmpeg -i input.avi -codec:v copy -bsf:v mjpeg2jpeg outp...
How to delete large data of table in SQL without log?
...uch bigger then records that will remain in the table, i found that simple select into temp table of the records that will stay in and drop original table and rename of the temp table is much faster. Given that you don't use identity Id foreign key somewhere.
– Vladimir Bozic
...
What is the difference between == and Equals() for primitives in C#?
... accepts the same type.
If you write age.Equals(newAge), the compiler will select int.Equals(int) as the best overload and implicitly convert short to int. It will then return true, since this method simply compares the ints directly.
short also has a short.Equals(short) method, but int cannot be im...
Trying to load jquery into tampermonkey script
...Something like:
// @require http://code.jquery.com/jquery-3.4.1.min.js
(Selecting your desired version from the of list of available versions of jQuery)
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How to get last inserted row ID from WordPress database?
...s not an option.
Did the follow:
global $wpdb;
$id = $wpdb->get_var( 'SELECT id FROM ' . $wpdb->prefix . 'table' . ' ORDER BY id DESC LIMIT 1');
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Replace all elements of Python NumPy Array that are greater than some value
... I came across. I wonder if there is a big difference between this and the selected answer above. What do you think?
– jonathanking
Feb 18 '18 at 16:44
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Cycles in family tree software
...mes as needed, hinting at the duplication by lighting up all the copies on selecting one of them.
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edited Mar 6 '14 at 14:47
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Can I implement an autonomous `self` member type in C++?
...e argument list is augmented by a contrived object and overload resolution selects one of the non-static member functions of T, the call is ill-formed.
Inside a static member function, this may not appear, but it still exists.
However, per the comments, inside a static member function, the transf...
Edit and Continue: “Changes are not allowed when…”
...o edit it.
(vs2017) Go to Tools > Options > Debugging and uncheck (deselect) 'Edit and Continue'. This is actually the opposite of the 'conventional' advice (see some other points in this post). It does not allow you to actually make changes in your running program (i.e. it does not hot-swap t...
What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...人民共和国',N'中华人民共和国'),
(N'abc',N'abc');
SELECT C1,
C2,
LEN(C1) AS [LEN(C1)],
DATALENGTH(C1) AS [DATALENGTH(C1)],
LEN(C2) AS [LEN(C2)],
DATALENGTH(C2) AS [DATALENGTH(C2)]
FROM @T
Returns
Note that the 华 and ...