My condolences, reading the wikipedia description gives me the very strong impression that you need to do a fair amount of guess + check work: Hunt backwards from the end for the 0x06054b50 end-of-directory tag, look forward 16 bytes to find the offset for the start-of-directory tag 0x02014b50, and hope that is it. You could … Read more
If a file contains only the decimal bytes 9–13, 32–126, it’s probably a pure ASCII text file. Otherwise, it’s not. However, it may still be text in another encoding. If, in addition to the above bytes, the file contains only the decimal bytes 128–255, it’s probably a text file in an 8-bit or variable-length ASCII-based … Read more
I don’t see where you will have much success exporting html to csv – it’s really not what csv is meant for. You would be better off using an xml format, where the html code can be enclosed in a cdata element. That said, you could try using the Replace function to remove the line … Read more
As a general rule, PNG is never worse, and often better than GIF because of superior compression. There might be some edge cases where GIF is slightly better (because the PNG format may have a slightly larger overhead from metadata) but it’s really not worth the worry. It may just be the tools I’m using, … Read more
There isn’t an official standard. In practice, in its simplest form, an mjpeg is just a concatenation of jpeg files, one after the other in the same file. ffmpeg supports this using the -f mjpeg or -vcodec mjpeg switches. JPEG decoders that decode multiple images should remember and use the same jpeg tables for subsequent … Read more
The CRCRLF is known as result of a Windows XP notepad word wrap bug. For future reference, here’s an extract of relevance from the linked blog: When you press the Enter key on Windows computers, two characters are actually stored: a carriage return (CR) and a line feed (LF). The operating system always interprets the … Read more
In times like these, the official HTTP specification is always helpful. From RFC 2616 7.2.1 (my emphasis added): Any HTTP/1.1 message containing an entity-body SHOULD include a Content-Type header field defining the media type of that body. If and only if the media type is not given by a Content-Type field, the recipient MAY attempt … Read more
Take a look at the PNG spec. This format has some very good rationale behind it. Also, decide what’s important for your future format: compactness, compatibility, allowing to embed other formats (different compression algorithms) inside it. Another interesting example would be the Google’s protocol buffers, where size of the transferred data is the king. As … Read more
We have our own JSON Geometry format. You can use these: Editor (drag your object into the window, select it and select File/Export Geometry) Blender exporter Python script from OBJ to JSON