[mythtv-users] lossless_cut issue with UK HD recordings

[Grzegorz Sikorski]

Hi Guys,

Thank you for your comments, they were very useful.

I started with Paul's approach (thanks for good instructions).
Unfortunately, my ~5GB full HD movie on my backend machine takes more than
10 hours to transcode. Assuming the result will be fine tomorrow, it is
unacceptable to treat every single recording this way...

Fortunately, John's way also works and since it does not need to transcode,
it works almost immediately. However it took me reasonable time to tune the
script and its dependencies to my system. I think I eventually modify
MythDVBcut script not to replace original recording, but move the mpg file
to other location and create user's job for this.

Thanks for that again!
Greg

On Tue, Mar 3, 2015 at 9:45 AM, Paul Gardiner <lists at glidos.net> wrote:

> On 02/03/2015 23:21, Grzegorz Sikorski wrote:
>
>> Thanks, I will give it a try. I have only Celeron J1800 machine, so I
>> wanted to avoid transcoding, but if this is the only way, I will do it.
>>
>
> Here are the four user jobs I commonly use:
>
>
> mythar --chanid "%CHANID%" --starttime "%STARTTIMEUTC%" --title "%TITLE%"
> --subtitle "%SUBTITLE%" --outdir /home/public/video/Archive --passthrough
> --interlaced
>
> mythar --chanid "%CHANID%" --starttime "%STARTTIMEUTC%" --title "%TITLE%"
> --subtitle "%SUBTITLE%" --outdir /home/public/video/Archive --passthrough
> --vsize 1280x720
>
> mythar --chanid "%CHANID%" --starttime "%STARTTIMEUTC%" --title "%TITLE%"
> --subtitle "%SUBTITLE%" --outdir /home/public/video/Archive --passthrough
>
> mythar --chanid "%CHANID%" --starttime "%STARTTIMEUTC%" --title "%TITLE%"
> --subtitle "%SUBTITLE%" --outdir /home/public/video/Archive --passthrough
> --interlaced --vsize 1280x720
>
>
> I call these:
> Mythar Interlaced
>
> Mythar Progressive to 720p
>
> Mythar Progressive
>
> Mythar Interlaced to 720p
>
>
> They do:
>
> Recode at the same resolution, maintaining the interlace
>
> Recode to 720p, assuming progressive content (most things besides
> sport, news, dance etc.) are progressive
>
> Recode at the same resolution assuming progressive content
>
> Recode to 720p, deinterlacing the content and encoding at twice
> the original frame rate (note, doubling the frame rate doesn't
> make a lot of difference to file size).
>
>
> All of these methods, pass through the audio without recoding it,
> so you don't lose 6 channel audio where used.
>
> Cheers,
>         Paul.
>
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