[mythtv-users] Transcode script for pillar boxed SDTV broadcasts on HDTV
sgreene59 at verizon.net
Wed May 30 01:20:28 UTC 2007
On Tue, 2007-05-29 at 15:17 -0400, Patrick Wagstrom wrote:
> Steve Greene wrote:
> > Everyone has probably seen pillarbox broadcasts on HDTV. Because of the
> > upsampling, they are still better than the analog broadcasts. Does
> > anyone have a script to eliminate the pillar box and create DVD-ready
> > files? Are the developers working on a solution for MythDVD?
> see ticket 2581 for something quite related
> I'm partial to this, because I wrote the patch and filed the bug.
> Basically, it allows you to define multiple transcoders that have a set
> aspect ratio. For example, if you set the transcoder to be 4:3 ratio
> and if it gets 16:9 input, it will just take the middle portion of the
> screen and cut off the pillarboxes. If it's 4:3 input, it leaves the
> ratio unchanged. Likewise, it works in reverse and can compensate for
> letterboxed content broadcast in 4:3.
> The videos are then transcoded just like any other video is transcoded
> within MythTV. Just flag the commercials, then tell it to transcode
> using autodetect. So, if DVD export works for MPEG4 on your system,
> then you'll get the correct aspect ratio.
> I've been using it for the last 8 months on my system and my analog
> tuner is now idle most of the time, the SD over HD is just better.
> Of course, as a downside, not everything is exposed in the UI, but it's
> a start. I utilize a cronjob that periodically goes and changes the
> transcoders for shows that I know to be pillorboxed. For other
> programs, I need to go in by hand and do some SQL hackery, but I can
> share the script if folks want it. Here's hoping that mentioning it
> will give the patch another kick for the devs and other folks to look at it.
>  Provided you've run the script I mentioned later in this email. I
> tried to hack up a UI that allows you to actually pick your transcoder,
> but at the time the transcoders were hardcoded and each had separate
> functions in the source. It burned my eyes and I figured I could do it
> with a shell script faster.
Thank you! This is just the kind of functionality Myth needs built-in!
Is the patch run against myth-plugins or mythtv? I hope it makes it in
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