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Closed 11 years ago.
I want to know about the ghostscript? I have seen that it is required for few softwares like cute pdf etc. What it does actually? Why it is used?
Thanks in advance!!
Ghostscript is a package of software that provides:
An interpreter for the PostScript (TM) language, with the ability to
convert PostScript language files to many raster formats, view them on
displays, and print them on printers that don't have PostScript
language capability built in; An interpreter for Portable Document
Format (PDF) files, with the same abilities; The ability to convert
PostScript language files to PDF (with some limitations) and vice
versa; and A set of C procedures (the Ghostscript library) that
implement the graphics and filtering (data compression / decompression
/ conversion) capabilities that appear as primitive operations in the
PostScript language and in PDF.
Taken from Ghostscript
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I'm in search of some info about FFmpeg.I did search for the info but did not find answers for most of my questions.
FFmpeg is a framework written in C++ which helps in editing videos from the command line.
So what does FFmpeg use to do editing like are there any algorithms which it uses or any?
If I'm building a project then I can say the project comes under image processing as a video is made up of images and the framework works on images right?
or video processing?
FFmpeg is a stand-alone framework right or it depends on any other?
Sorry for asking noncoding questions here
FFmpeg is a multimedia decoding/encoding/... library and suite of applications.
It is capable of (de)muxing, de/encoding, transcoding, rendering to screen, and even employs hardware features to do all of these things if possible/available.
Depending on the files involved, it uses various other libraries to extract information and data from the multimedia files, and sometimes has its own code to do these things. When reading, writing, decoding or encoding video, many different algorithms are used, mostly dependent on the actual video and audio formats involved, as they usually describe the compression algorithm you have to use and even what parameters these algorithms must use in specific situations (e.g. a Level 4 H.264 video uses a fixed set of parameters to ensure decoders can always decode these types of videos).
Video is more than just a bunch of images. Eventually each frame will be blitted to your screen in quick succession, but the files themselves definitely do not contain these images directly.
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Closed 9 years ago.
I am working on an Oracle project where we are using NUMERIC (27,12) fields. I first transform cash values in the db fields into normalized percent form, do some arithmetic on these percents and then finally converts them back into cash amount.
It is a money management application and sometimes the results are off by some pennies that is some pennies short and I believe that is due to this conversion.
I need to know how can I avoid this error introduced somehow in oracle SQL?
Hard to answer without any code. Do you use BigDecimal? If conversion is bugy (I don't think so) try store/retrive value as string, convert string to bigdecimal or whatever, operate on it, and see if you get the same precision.
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Closed 10 years ago.
Any time I want to use ruby's ri tool, (e.g. after typing something like ri GC), after it shows the documentation, I can find no way of exiting it and none of the usual key combinations for terminating a command-line command works. Because of that I'm forced to close the whole terminal window to continue my works.
How can I quit normally from ri after it showed documentation?
The answer is to simply type q and it will exit.
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Closed 10 years ago.
Can anyone tell me what is the difference between parse and foreach in CSV?
Check Ruby Document here.
Generally speaking, #parse is used to parse a string while #foreach is for a file.
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Closed 9 years ago.
Even though I'm using different ajaxUrl's. Like ajax01Url, ajax02Url, etc. Each one of them with its own typeNum. I keep getting the same array content in function(data).
Any suggestions how to clean this?
It was my own fault, I had a typo on the action name :)
I was calling the two different uri.action with the same name. Even though they have different pageType.