[MPlayer-users] Reencoding a broadcast HD-ATSC stream

[Kichigai Mentat]

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On Nov 14, 2005, at 21.02, Philip Prindeville wrote:

> I got a .ts capture via pchdtvr (1.0.9) and was wondering if  
> there's a standard
> set of parameters to reencode this into something more portable,  
> say an MPEG4
> or Divix5 stream instead...
I'd convert it the same way I convert everything else. My suggestion  
is to use either XviD (if it's on your system) or lavc's mpeg-4  
codec. Both are very good. After that, it's just selecting your  
bitrate and all those other fun toys. Read the MAN page or  
documentation for more information.
>
> I also noticed that the image size isn't 1920x1080, but rather  
> 1920x1088... I suspect
> that some non-display lines are also present in the stream ($%^*  
> broadcasters that
> don't use a proper CC stream-id and embed the CC into the image  
> stream instead).
Well, watch the video. See if you can tell where those extra eight  
pixels are. Then just crop them out. It's not hard at all, just use - 
vf crop. Again, read the MAN page or documentation for more information.
>
> Anyone have suggestions for a best way to reencode?
High bitrate (approximately half of the MPEG-2 TS, I'd say, about 1.5  
MBit, but many people use around 700-800 Kbits, which gives you  
something about the size of a CD at 1:30 in length). As far as audio,  
your call. Use Vorbis instead of MP3 if that's an option, but also  
consider FLAC is size isn't an option. I guess this all depends on  
your needs really.
>
> Thanks,
>
> -Philip
>
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