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I have many small video clips in different formats (.avi, .mpg, etc).
I want to convert all the files to .mp4 format using matlab.
The reason for the conversion is: I am extracting frames from videos and save them as images. but when I use .mpg, .avi formats I am unable to determine the number of frames in each video clip.
So I need to convert the files to .mp4 format. Could you please let me know are there any way to do it using matlab.
Thanks
Make use of FFMpeg to convert and then read the output using MATLAB.
for instance;
ffmpeg -i myfile.avi myfile.mp4
Readme Link
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I need to get metadata info from a eBook such as author, publication date, publisher, plot, etc. The formats are '.mobi', '.azw', '.azw2', '.azw3', '.epub'.
Is there any cocoa class for that? If not, which libraries do you suggest me?
I think no, but all those formats have xml based metadata formats, so use any xml parser you like.
Just unzip file and see what inside. For example internals of some .epub
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It looks like there is a wealth of SVG parsers out there. Has anyone written a SVG generator for Objective-c? I have point data (ideally bezier data) that I want to write out to SVG. If you know of an example or library to do this please let me know.
You can write CGPathRef data (bezierPath.CGPath) to SVG file using MROGeometry library
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I am currently trying to parse the semantic structure of a PDF file. I believe the metadata added to make PDFs accessible is the correct way to go about it, but I can't find a library that will handle it cleanly.
I've tried PDFLib TET on iOS but I can't get it to open certain test documents and the error it returns is too obscure to be Googleable.
Are there any other libraries that do the same?
I'd have a look at the pCOS-Library (also from http://pdflib.com). For use in PHP there would be an alternative you could have a look at http://www.setasign.com/. They might have a tool for that purpose.
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I've been dealing with ebooks lately, and found it quite hard to quickly find conversion scripts to and from the numerous formats available (EPUB, lrf, html, txt, rtf, markdown, and so on).
I thought it might be nice to have one post here with one formats pair and one corresponding tool (eg. Markdown -> Pdf, markdown2pdf) per answer. This should give everyone a neat way to rate the various tools based on their experience, and I think that such a list could be handy for many people.
Hope you like the idea!
I think this might work for you: http://manual.calibre-ebook.com/cli/ebook-convert.html
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I'm taking recommendations for either a library in Python or Ruby or a free web service that will simply take a PDF and a pair of image dimensions and spit out an image for each page (jpg or png). Nothing complicated! But it must have point-for-point accuracy to the original PDF. That is all.
ImageMagick uses Ghostscript for PDF files. So skip ImageMagick and use Ghostscript directly. IMHO.
You can use GIMP. Its a very good interface.
Import the pdf file to GIMP
Save the file as .xcf
Operate on the image - edit if required
Export in whatever format you want: .bmp, .jpeg, .png etc.
Try this :) (ImageMagick).