Mailing List Archive: MythTV: Users

Transcoding to remove commercials in MPEG2 broke

Index | Next | Previous | View Threaded

james at thearmstrongs

Aug 10, 2004, 4:58 AM

Post #1 of 2 (704 views)
Permalink

Transcoding to remove commercials in MPEG2 broke

Is there any way to transcode a mpeg2 nuv file to remove the commercials
without going to mpeg4 then back to mpeg2? I thought there was a setting
in the transcoders that used to allow an mpeg2 source to be transcoded
to an mpeg2 format just to remove the commercials or lower the bitrate
some. If I edit the 'From MPEG2' transcoder my only option is to RTJPeg
and MPEG4. I want a file that I can burn on dvd without having to
transcode again to mpeg2. Am I missing something? Running cvs as of
yesterday.

Another thing, I have commercial flagging turned off because I had some
problems and wanted to see if that was the issue. I marked one for
commercial flagging lastnight and it finished within 10 minutes. I went
ahead and marked three others for flagging and they never finished. If I
try to select 'Stop Commercial Flagging' from the Watch Recordings
screen it does nothing and stays at flagging. I let it run overnight and
tried to manually transcode using mythtranscode ... -l and it said the
file was in the process of being flagged and stopped. If I remove the -l
it worked (but is in the mpeg4 format).

- James

leo at wau

Aug 10, 2004, 6:22 AM

Post #2 of 2 (671 views)
Permalink

Re: Transcoding to remove commercials in MPEG2 broke [In reply to]

On Tue, Aug 10, 2004 at 07:58:59AM -0400, James Armstrong wrote:
> Is there any way to transcode a mpeg2 nuv file to remove the commercials
> without going to mpeg4 then back to mpeg2? I thought there was a setting
> in the transcoders that used to allow an mpeg2 source to be transcoded
> to an mpeg2 format just to remove the commercials or lower the bitrate
> some. If I edit the 'From MPEG2' transcoder my only option is to RTJPeg
> and MPEG4. I want a file that I can burn on dvd without having to
> transcode again to mpeg2. Am I missing something? Running cvs as of
> yesterday.

There is no easy way AFAIK. I am trying todo the same thing and what I
currently do is:
1) Add the commercial cutlist to to cutlist
2) Nuvexport nuv+sql
3) Cut the thing by hand in avidemux using the extracted cutlist
4) rebuild the mpeg file (== the nuv file)
5) Update the sql with a new index
6) import the nuv+sql into myth

This is a drag, even though parts of the above runs through scripts already.
I am still experimenting with parts of the above, but I am doubtfull if
full automation is possible this way. Part of the difficulty is that avidemux
relies heavily on the gui and the gui can't be turned off.

Leo.

Index | Next | Previous | View Threaded

Interested in having your list archived? Contact lists@gossamer-threads.com