[mythtv-users] HD-PVR lossless transcode - smart naming script
chmeredith at gmail.com
Fri Jun 26 13:58:44 UTC 2009
On Wed, Jun 24, 2009 at 12:40 PM, Ian Forde <ian at duckland.org> wrote:
> On Sat, 2009-05-16 at 18:14 -0500, Christopher Meredith wrote:
> > What does this script do? It losslessly cuts commercials from HD-PVR
> > recordings and gives them smart names.
> > So 1431_20090218195000.mpg
> > becomes
> > Lost.S03E03.Further Instructions.mkv
> > It runs as a user job and can put the transcoded files anywhere you want.
> > Project page here:
> > Special thanks to Robert McNamara. I welcome suggestions. As the page
> > explains, I'm hardly a perl programmer; this is largely a
> > copy-and-paste job. But it works. Please let me know your experiences
> > and if there are things I could do better.
> Apparently, the ticket containing the avidemux cutlist patch -
> http://svn.mythtv.org/trac/ticket/5809 - is now closed as "wontfix".
> (Which, in all fairness, Robert has historically stated that he was
> going to eventually do.) There is a reference to "better, cleaner ways
> of handling this". Unless I missed something (which is quite possible)
> I'm not sure what any of them are...
I would also like to know this. In my experience, the avidemux hack only
works reliably on 6-channel AC3 audio. It dies completely on AAC and the
audio get cut at random points on 2-channel AC3. I've got a messy workaround
that converts the audio to 6-channel AC3 first if it isn't already.
I've been working on a version of this script that uses mencoder but it is
only reliable if you're re-encoding the video (which is obviously not
lossless). Even so, the mencoder EDL method also doesn't like AAC audio so I
have to end up converting it twice.
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