[FFmpeg-devel] [PATCH] AVCHD/H.264 parser: determination of frame type, question about timestamps

Ivan Schreter schreter
Thu Jan 29 20:41:45 CET 2009

Baptiste Coudurier wrote:
> Explain me, which these people did one step away from progressive, by
> encoding each field separately in H.264, while everybody understood that
> using frame coding in MPEG-2 was really better ?
> I can't believe it...
I suppose you wanted to reply to my comment...

I don't know why those people use field coding for interlaced H.264 in 
HD-camcorders, but the fact is, they do. I've checked with Panasonic, 
Canon and Sony camcorders. They all seem to produce field-coded 
interlaced movies (i.e., each frame is coded as two separate field 

My Panasonic camcorder can also record in 25p cinema mode. In this case, 
it produces frame-coded progressive movies (i.e., it uses frame picture 
in H.264 instead of two field pictures per frame).

Anyway, since I want to use it, I'm going to fix it somehow. Just don't 
know really how, since both solutions I thought about are not 
particularly good.



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