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FFmpeg: How to split video efficiently?
...t question, so I did as @AlcubierreDrive suggested…
echo "Two commands"
time ffmpeg -v quiet -y -i input.ts -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 -sn test1.mkv
time ffmpeg -v quiet -y -i input.ts -vcodec copy -acodec copy -ss 00:30:00 -t 01:00:00 -sn test2.mkv
echo "One command"
tim...
How to efficiently concatenate strings in go
...ring("a")
}
fmt.Println(buffer.String())
}
This does it in O(n) time.
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Will strlen be calculated multiple times if used in a loop condition?
... the iteration. If it might, then you'll need to either call strlen() each time, or handle it through more complicated logic.
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Cached, PHP generated Thumbnails load slowly
...nly 3% faster overall, and while not answering the site's main bottleneck. Time for for clarification of my question, and, another bounty:
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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?
I have a Python datetime object that I want to convert to unix time, or seconds/milliseconds since the 1970 epoch.
13 Ans...
What's the fastest way to delete a large folder in Windows?
...l representation inside Windows Explorer, it is still going to take a long time - MS uses a 'Schlemeil the Painter' algorithm (joelonsoftware.com/articles/fog0000000319.html) anytime a dir or del is done
– warren
Oct 9 '08 at 11:36
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How can I find the number of days between two Date objects in Ruby?
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If you have a DateTime object, be sure to convert to Date first, otherwise it returns number of seconds (I guess).
– Joshua Muheim
Feb 17 '14 at 9:15
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How do I parse an ISO 8601-formatted date?
... RFC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type.
27 Answers
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Create timestamp variable in bash script
I am trying to create a timestamp variable in a shell script to make the logging a little easier. I want to create the variable at the beginning of the script and have it print out the current time whenever I issue echo $timestamp . It proving to be more difficult then I thought. Here are some thin...
What is the Python equivalent of Matlab's tic and toc functions?
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Apart from timeit which ThiefMaster mentioned, a simple way to do it is just (after importing time):
t = time.time()
# do stuff
elapsed = time.time() - t
I have a helper class I like to use:
class Timer(object):
def __init__(sel...