[MPlayer-users] encode to dvd useing nicos patch produce null size mpeg file!

Heine Laursen maillist at gozar.dynu.com
Sat Dec 11 11:34:47 CET 2004

Giacomo Comes wrote:
> On Fri, Dec 10, 2004 at 04:53:12PM +0100, Heine Laursen wrote:
>>Giacomo Comes wrote:
>>>>With more ore less unsuccisfull. So I'll do it the hard way.
>>>>Try until I get somthing to work :-)
>>>Assuming a PAL DVD, and that the original video has an 
>>>aspect ratio of 1.3, adding
>>That is correct.
>>>	-vf scale=702:576,expand=720:576
>>>to mencoder will do the job.
>>Well that's basicley what I don't undarstand!
>>How can the aspect be 1.33 when it's not 1.33?
>>707 / 576 = 1.21
>>720 / 570 = 1.26
>>I'm confused :-(
> 720x576 is the PAL DVD resolution for the movie
> stored on the disk.
> It will always be that. It doesn't matter if
> the video is 16/9 or 4/3.
> The mpeg stream contains a flag that tells the 
> player the aspect ratio of the movie.

This might be true. I don't know.
I do however know that my logic sence says that's stupid. because if you 
  streatch an image let's say to 16:9 then their heads,bodys (well the 
hole image) should be stretched to be more width than it actully is!
But ofcurse It could be me who don't understand a danm thing of this :-)

> A 4/3 PAL DVD is played at 768x576,
> a 16/9 at 1024x576
> but remember, the video is always encoded at 720x576.
> (720x576 is not the only resolution permitted by
> the DVD standard, but all commercial DVD uses that
> one because it is the highest, I think)

but that dont, mean you just can blow any movie up to 768x576 and expect 
it to look right. I guess it have somthing to do with the scale option.
I have some man reading to do.

Heine Laursen

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