On 25/03/14 14:15, Enrique Arizón Benito wrote:
> Hi,
> 
> I'm developing an small project that required to call avconv from LUA (
> http://www.lua.org/).
> 
> After a few trials I managed to wrap the avconv main function to be called
> directly from a LUA script, so that exceptions are captured by the LUA
> exception mechanism (an small improvement over creating an avconv
> subprocess and parsing the ouput).

Sounds neat =)

> Since I don't want to reinvent the wheel I wonder whether there is
> something already developed. I couldn't find anything related "googling
> around". Otherwise, If anyone is interested on the LUA wrapper, just let me
> know.

Not that I know.

> The LUA+avconv wrapper scripts looks something similar to:
> 
> -- Description
> -- Take a thumbnail of a given video.
> myVideo = "-i myVideo.mp4"
> outputThumbnail = "myVideo.png"
> cmd = ""
> cmd = cmd .. myVideo
> cmd = cmd .. "-ss 00:00:15.000 "
> cmd = cmd .. "-f image2 "
> cmd = cmd .. "-vframes 1 "
> cmd = cmd .. outputThumbnail

I'm quite sure some people would find it extremely useful.

lu

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