video

[farazmit]

Hi
Does anyone know how I can check for different video formats. I am creating a website in which people can upload funny videos. I am not sure how to check whether a file is .mov. The easiest way is to check for the file extention. I believe this is not enough cause now a user can just changed a text file's extension and pretends that it's a video. Can somebody tell me which property I should look for within .mov file to make sure it's a video
Thanks
Faraz

 

[BillyRayPreachersSon]

You would probably need to ask this in a different forum, or even a different board. I suggest searching for a multimedia forum / board and asking there. You really would not want to use Javascript to do this (client-side is virtually impossible, and server-side wouldn't be much better).

Hope this helps,
Dan



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[BabyJeffy]

...server-side wouldn't be much better

Well... since you can access data at the byte level server-side, I would imagine that you could do it very satisfactorily server-side.

Step one may be checking the file extensions. That can be done client-side with ease. You would also be encouraged to do the same thing server-side (to catch people who managed to bypass the javascript checks).

Once you have verified that the file being uploaded has an acceptable file extension... then you can begin looking at the actual contents of each file type. You will have to find out (google? usenet? other forums?) what you can test for (at the byte level) in the file to prove it is a valid video.

Personally I would not bother looking at the actual file contents (although you could look at the first few bytes to determine that the file wasn't a ZIP file or an EXE file).

Just some thoughts

Cheers,
Jeff

 

[BillyRayPreachersSon]

I specifically meant with server-side JavaScript, given that this is the JS forum.

Server-side would definately be the way to go - and it might turn out that someone has written a server-side JS library to do this. Try Google.

Hope this clarifies things,
Dan




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