[MEncoder-users] demuxing question

[belcampo]

Peter wrote:
> On 2010-11-23 6:04 AM, Levente Novák wrote:
>> 2010. 11. 23, kedd keltezéssel 00.52-kor Alexander Strange ezt írta:
> 
>>> If you have yadif, how often do you need to scale interlaced movies?
>>>
>>
>> Yadif is a deinterlacer. It helps only if you want to deinterlace, which
>> is not the optimal solution when e.g. you are up/downscaling interlaced
>> material to be mastered on a DVD as interlaced.
> 
> Levente has the answer exactly. What do people normally TAKE movies 
> with?
Some people do take movies from TV.
> An HD camcorder, of course! What do people normally WATCH movies 
> with? A DVD player, of course!
Some use NMT/PopCornHour-like devices.
> Until FFmpeg can take the most common 
> source, and turn it into the most common target, it's pretty useless. 
> How often do I scale interlaced movies? Every time, my friend.
Some people never do these kind of things.
> 
> The users of FFmpeg think it's good because they live in the world of 
> computers and progressive displays. They think the best thing to do with 
> interlacing is to get rid of it.
> 
> I have to give them credit for getting YADIF working though; I didn't 
> know that (Thanks Alexander). At least with YADIF you can make the best 
> of the interlaced information you have, when converting to progressive.
>