View Full Version : Interlaced source to Progressive source
six13
18th November 2007, 23:32
I have a interlaced .mpg file from a TV capture that I demuxed and authored the DVD files so I can run it through DVD-RB and HCenc 22. Is there any way to take the DVD files authored that are interlaced and convert it to progressive then load that set of files into DVD-RB and encode with HCenc 22?
As you know a source that is a DVD rip is prgressive, and my TV capture from sat. rec is interlaced. The benefit of starting with a progressicve sourse is much better and I wonder if it is possible to make my TV capture sourse used by DVD-RB progressice so the output will be better?
thanks
SeeMoreDigital
18th November 2007, 23:47
Personally, I would keep any pure interlaced MPEG-2 source as interlaced.
In order to generate a progressive MPEG-2 stream you will have to re-encode, which in itself will reduce visual quality.
Cheers
Thunderbolt8
19th November 2007, 00:19
what about VC-1 sources?
neuron2
19th November 2007, 01:43
what about VC-1 sources?
Please elaborate. As it stands, your question is too vague to answer.
Thunderbolt8
19th November 2007, 05:05
what I mean is will creating a progressive VC-1 stream out of an interlaced one also only be possible via re-encoding and therefore loss of quality, as SMD said above for mpeg2 ?
PhillipWyllie
18th December 2007, 13:21
You can change the flag to progressive in a MPEG-2 file, this only has an effect if your interlaced source is bff(I believe TVs plays progressive as tff). With VC-1 being of Microsoft origin, I doubt there will be many tools that'd allow to change the progressive flag(if there is even one in VC-1). I'm sure it's possible to do with avc sources, but nueron2 would be better suited to advise(as he's writing his excellent DGAVCDec utility).
neuron2
18th December 2007, 13:56
First, your TV show may be progressive already. It may be telecined film, for example. Assuming that it is in fact interlaced content, then you would have to apply a deinterlacer to make it progressive, and that means having to re-encode. This is true for VC-1 as well. Just changing flags in MPEG2 doesn't change interlaced content to progressive content.
I agree with SeeMoreDigital -- keep it interlaced.
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