[mythtvnz] Transcoding HD videos

[Brett]

> 
> Are you guys also editing the HD Videos as well?
> 
Work in progress (ice-age slow) so no, not yet.

I would like to be able to use a user-job with the std myth cutlists.
I think that time based cutlists could be better for fast
seeking/cutting.

AFAIK
avidemux 
- supports cutlists
- still no latm-aac support
- 2.5 was frame based, 2.6 is time based, both are flakey IMO.

mkvtoolnix
- supports time cutlists by splitting file, cuts to I frame.
- no latm-aac support.
- mkv output only (fine).

ffmpeg
- can be scripted to cut in one pass with cutlist
- frame accurate cutting requires video filter i.e. decode & slow

Converting ts to ps & (theoretically) stripping filler NALs could save
10% to 40%.

I have read that mkvmerge strips filler/stuffing NALs & ffmpeg does
not..but I have not noticed any size reduction by processing with
mkvmerge.

Brett