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Fetch frame count with ffmpeg
...mber. See Edit lists below.
ffprobe: Query the container
ffprobe -v error -select_streams v:0 -show_entries stream=nb_frames -of default=nokey=1:noprint_wrappers=1 input.mp4
This is a fast method.
Not all formats (such as Matroska) will report the number of frames resulting in the output of N...
Initialising mock objects - MockIto
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For the mocks initialization, using the runner or the MockitoAnnotations.initMocks are strictly equivalent solutions. From the javadoc of the MockitoJUnitRunner :
JUnit 4.5 runner initializes mocks annotated with Mock, so tha...
Vim delete blank lines
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Thanks soulmerge. This is my favorite answer, since it actually explains what the :g command does.
– Tim Swast
Aug 15 '11 at 19:03
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Copy array items into another array
...rrayA and arrayB remain unchanged; concat creates and returns a new array for the result).
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Is there a reason for C#'s reuse of the variable in a foreach?
When using lambda expressions or anonymous methods in C#, we have to be wary of the access to modified closure pitfall. For example:
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How do I reattach to a detached mosh session?
How do I reattach to a detached mosh session or otherwise get rid of
7 Answers
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What is the proper way to check for null values?
I love the null-coalescing operator because it makes it easy to assign a default value for nullable types.
10 Answers
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Convert JavaScript String to be all lower case?
...string str itself". This is base on a documentation here developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Cary Bondoc
Jun 27 '14 at 0:52
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Fastest way to find second (third…) highest/lowest value in vector or column
...x and min, but I do not see a really fast way to find another value in the order, apart from sorting the whole vector and then picking a value x from this vector.
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How to round a number to n decimal places in Java
...de explicitly to handle your issue with the half-even round, then use the format pattern for your required output.
Example:
DecimalFormat df = new DecimalFormat("#.####");
df.setRoundingMode(RoundingMode.CEILING);
for (Number n : Arrays.asList(12, 123.12345, 0.23, 0.1, 2341234.212431324)) {
Do...