[mythtv-users] Crop in Transcode?
robert.current at gmail.com
Wed Apr 25 18:15:53 UTC 2007
Hmm, now I'm wishing I knew the transcode options a bit better, and my
scripting was a bit better. I'd like to have a User Job for this.
mythtranscode --help isn't detailed, and ...
mythtv at mythtvbox:~$ man mythtranscode
No manual entry for mythtranscode
Is there documentation somewhere? The Wiki is about the same as
--help, it doesn't even mention --export_asr or --export_prof
I'd really like to set up a User Job where it:
1) stats the file to be sure it's an actual OTA HD 16:9 file
(since "Simpsons" comes off cable and OTA, only want to do the right ones!)
2) if it's OTA HD, transcode it to 3:4 (cropped) NTSC SD
(going from 1920x1080/1280x720 to 720x480 save a TON of space and make
Should be similar to the "Removing Commercials" in the WiKi?
On 4/25/07, Geoff Mishkin <gmishkin at acs.bu.edu> wrote:
> You can use the -j option to do this. The format is -j
> top,left,bottom,right. I've found for my 480x480 recordings that -j
> 58,4,54,0 works well.
> An option if you want to export to DVD is use --export_prof dvd-ntsc in
> conjunction with --export_asr 3 which is 16:9 and it'll automatically
> crop the top and bottom without having to use the -j option.
> --Geoff Mishkin <gmishkin at bu.edu>
> Robert Current wrote:
> > I'm guessing the answer is no, but...
> > Is there anyway to do a crop in transcode?
> > Some shows I watch are always letterboxed on SD signal. Law & Order on
> > USA, Rescue Me on F/X, A Haunting on Discovery Channel. It would be
> > nice to just throw out the upper and lower black sections in a
> > transcode.
> > Some shows I watch are HD broadcasts of SD shows My local KMSB plays
> > old Simpsons and Frasier SD shows as full HD broadcast with black bars
> > on the left and right. It would be nice to just throw out the left
> > and right black sections in a transcode.
> > This would probably save me a lot of disk space, and probably lighten
> > up the load on the system during playback of non-HD recordings of OTA
> > HD broadcast.
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