[FFmpeg-devel] saving file directly to webserver

[Luca Barbato]

Thomas J?rg wrote:
> or in detail:
> 1. a user clicks on a movie download link on a website (mpeg4, php/ 
> mysql)
> 2. a script selects two preencoded files they are pretty large (ca. 1  
> GB)
> 3. the two files are joined
> 4. the download of the new movie (the two files connected) begins
> for the user it has to be like just downloading one file. the movie  
> should play in quicktime player.

beside quicktime, IFF the files have the same format, feng can do that 
already.

> is there a possibility to do this directly?

Only if the files have the same format.

> i imagine something like modifying ffmpeg to accept two files as an  
> input then ultimately generating the mpeg4 header and passing it on to  
> the webserver to start with the download. can the movie information be  
> pulled out of the two existing files? it's like an ordinary "join two  
> files operation" but instead of a "save as" command there is a "pass  
> to webserver" comand. or you can see it like this: the file is not  
> saved locally but directly to the requesting user over the web.

Right now feng (a streaming server that uses ffmpeg) let you cut and 
collate chunks of streams on fly.

> would be really cool to build an application that can do this. we are  
> a small group of filmstudents from berlin but we have funding for this  
> project. we are willing to offer a 500? reward for anybody who can  
> build such a system.

A similar thing was done by politecnico di Torino an year ago  and this 
feature got in feng because of that.

http://live.polito.it if you want to give a try.

lu

-- 

Luca Barbato
Gentoo Council Member
Gentoo/linux Gentoo/PPC
http://dev.gentoo.org/~lu_zero