[mythtv-users] Transcoded mpeg still has (all?) commercials

Jeff Jensen jjensen at apache.org
Fri Oct 30 01:21:50 UTC 2009

Thank you Jim...

Is there any known commercial detection accuracy improvement between running
on the TS or PS?  This question comes from wondering if it should do a
transcode pass before the commflag pass.  I recall reading that the
transcode pass can "smooth some things out", and I wonder if that could also
mean a probable commflag detection accuracy improvement or not.

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Jim Stichnoth
Sent: Thursday, October 29, 2009 5:16 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Transcoded mpeg still has (all?) commercials

On Thu, Oct 29, 2009 at 2:13 PM, Jeff Jensen <jjensen at apache.org> wrote:
> Some transcode results showed size reduction like "6.4G -> 6.3G", which
> makes me think commercials were removed (perhaps other things can get
> "cleaned up"/removed which would cause a slight reduction in size?).

To answer just this question.  Lossless mythtranscode will convert an
MPEG transport stream (TS) into a program stream (PS), which is
slightly more compact.

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