Does anyone know how to fetch the number of total frames from a video file using ffmpeg? The render output of ffmpeg shows the current frame and I need the frame count to calculate the progress in percent. ...

...een asked before but no it was not definitively answered. How exactly does one post raw whole JSON inside the body of a Retrofit request? ...

...ore -D checkpoint --shell-job And, there it is. Your mosh client is back. One thing to note, however, is that if your laptop reboots (which is the whole point of what we're trying to protect against), mosh uses a monotonic clock to track time on the client side, which doesn't work across reboots. T...

... Although the other answers give shorter commands, all of the ones I tried print out too much info and truncate the file path to "...". The 2nd command in this answer gives just what you need, works for a directory of files, and is formatting in a way that it's easy to see how to modify...

...e a generic term for dividing data across tables or databases. Sharding is one specific type of partitioning, part of what is called horizontal partitioning. Here you replicate the schema across (typically) multiple instances or servers, using some kind of logic or identifier to know which instance...

...hat log after you hit the app, you're in production mode. second way: in one of your views (probably the layout is good), just add <%= "Environment: #{RAILS_ENV}" %> And that will show you what the environment that you're running in. edit You will see the default exception page instead ...

I have been writing iPhone applications for some time now, sending data to server, receiving data (via HTTP protocol), without thinking too much about it. Mostly I am theoretically familiar with process, but the part I am not so familiar is HTTP multipart request. I know its basic structure, but the...

...folder of a repository, in the same way that git doesn't support "narrow clones" in general. If you can't live with having the whole repository as a submodule, you could always create a new repository that's cloned from boto and then set up a cron job to: git fetch that repository into a directo...

...y. This means that no two methods of the set can be executed concurrently (one will block until the other finishes) - this is thread-safe, but you will not have concurrency if multiple threads are really using the set. If you use the iterator, you usually still need to synchronize externally to avoi...

...has started, but JQuery won't return the response until the PHP script is done running. 19 Answers ...