[MPlayer-users] slightly OT - converting divx files

[Nico Sabbi]

Alexander Roalter wrote:

>Daniel Harris wrote:
>  
>
>>Hello all
>>
>>I have been experiencing problems when converting divx files to dvd.  The
>>problem seems to be the divx files are usually encoded with a frame fate of
>>23.9 but I try to set them to 25fps to watch on a pal dvd.  The conversion
>>process makes the dvd freeze slightly every now and again on playback.  What
>>is the correct way to do this type of conversion to ensure smooth playback
>>on dvd/tv.
>>
>>Thanks in advance for any feedback..
>>
>>I must admit that for the conversion process I usually use ffmpeg.
>>
>>    
>>
>That depends on what you mean with "every now and again".
>
>Playing 23.9 (or 24) fps as 25 fps would meen a freeze every second, as 
>one frame has to be shown twice as long as the other ones. Normal TV 
>sets do some special interleaving, so you see two half frames per second 
>twice.
>
>What's usually done is speeding up the video to 25 frames, thus making 
>the sound half a note higher and the video 4% shorter, where such 
>jittering should not occur. As what the steps are to achieve this with 
>mencoder I'm not all that familiar now.
>
>  
>
one trick is to use mencoder -of mpeg -mpegopts 
format=dvd:tele_src=24000/1001:tele_dest=25