[MPlayer-users] a.mpg += b.jpg

[Nico Sabbi]

Il Sunday 04 November 2007 03:51:30 Carl Karsten ha scritto:
> Part of a weather station is a web cam pointed at the horizon. 
> Want to have a web page with a few "last X hour" links that will do
> a few seconds of time laps.
>
> Plan A: generate a .mpg every time someone clicks.  that's lame.
>
> Plan B: add the jpg's to one big .mpg as the jpgs come in. then
> slice off the last X frames and serve that up.
>
> I can do A.  don't want to.  I want to do B, so how do I add a .jpg
> to an mpg?
>
> I hear I should create a .mpg out of the single .jpg, and then
> merge the 2 mpg's together, but I fail:
>
> carl at dell29:~/temp/$ mencoder  -nosound -ovc lavc
> -lavcopts vcodec=mpeg2video:cmp=2:subcmp=2:mbd=2:trell:vqscale=31:
> -of mpeg -ofps 30 -vf harddup -o q.mpg

mf://071103100100.jpg