[MEncoder-users] mencoder multiple images to a divx o mjpeg problem

[Giacomo Comes]

On Wed, Jan 10, 2007 at 09:00:34PM +0100, Frodogodo drogofodo wrote:
> Hi,
> 
>   i'm trying to create a "slideshow" divx with some fotos I have. I have
> some problems regarding the quality
> of the images displayed in video, all of them seems to be with a lot of
> light loosing a lot of details.
> The command i'm using is:
> 
> mencoder -idx -of avi -ofps 25 -ovc lavc mf://final_*jpg -mf type=jpg:fps=.2
> -oac copy -audiofile audio.mp3 -o video.avi
> 
> which i think is correct but the results are not the desired. If I extract
> the images inside the video with
> mplayer -vo jpeg video.avi
> 
> the jpegs extracted are 1/4 size of the original jpegs.
> 
> I've the same results with
> -ovc lavc -lavcopts vcodec=mjpeg (which seems to be the logical choice)
> -ovc copy,
> -ovc raw  ...
> 
> all jpegs files have the same dimensions and color depth,
> I've tried the same process with the images converted into png and tga with
> identical results.
> 
> MEncoder 1.0rc1-4.1.2
> 
> Could anyone give me a clue about this problem ?

Use same lavcopts like vbitrate,mbd,trel,etc.
You should at least increase the video bitrate.

Ciao.
Giacomo