[mythtv-users] Transcoding and H264

[Robert Houghton]

On Mon, Feb 14, 2011 at 1:26 PM, kanetse at gmail.com <kane.tse at gmail.com>wrote:

> On Fri, Feb 11, 2011 at 7:52 PM, Christopher Kerr <mythtv at theseekerr.com>
> wrote:
> > On Sat, Feb 12, 2011 at 12:47 PM, Christopher Kerr
> > <mythtv at theseekerr.com> wrote:
> >> On Sat, Feb 12, 2011 at 8:02 AM, Robert Houghton <robbadler at gmail.com>
> wrote:
> >>>
> >>>
> >>> On Fri, Feb 11, 2011 at 12:26 PM, Robert Houghton <robbadler at gmail.com
> >
> >>> wrote:
> >>>>
> >>>>
> >>>> On Fri, Feb 11, 2011 at 7:16 AM, Dan Wilga
> >>>> <mythtv-users2 at dwilga-linux1.amherst.edu> wrote:
> >>>>>
> >>>>> On Wed, Feb 2, 2011 at 2:11 PM, Robert Houghton <robbadler at gmail.com
> >
> >>>>> wrote:
> >>>>>
> >>>>>>  Please see http://www.mythtv.org/wiki/High_Quality_Transcode. Wiki
> >>>>>>  page template thanks to author of "Low Quality Transcode" Doug
> Haber.
> >>>>>
> >>>>> Hi Robert,
> >>>>>
> >>>>> I also tried this script and found that it had trouble with filenames
> >>>>> that contain spaces (like those generated by mythrename.pl). I
> suspect you
> >>>>> need to put some of the shell command arguments into double quotes.
> >>>>>
> >>>>> --
> >>>>> Dan Wilga
>  "Ook."
> >>>>>
> >>>>> _______________________________________________
> >>>>> mythtv-users mailing list
> >>>>> mythtv-users at mythtv.org
> >>>>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >>>>
> >>>>
> >>>> Thanks all. Just realized the problem is in the return of ttvdb.py.
> Where
> >>>> formerly `ttvdb.py -N $title $subtitle` returned SXXEXX, it now gives
> the
> >>>> full XML for the episode.
> >>>>
> >>>> Do'h. Thanks for removing the .24 compatibility flag.
> >>>
> >>> Updated file to parse the XML from ttvdb.py. I'd love some independent
> >>> confirmation that this works on a 0.24 build other than mine.
> >>>
> >>> FWIW, you all helped me realize why my files had been horribly
> mis-named
> >>> since I updated from 0.23. So, Thanks!
> >>
> >> Robert,
> >>
> >> With the latest ffmpeg and x.264, the "hq" preset you use seems to no
> >> longer exist.
> >>
> >> I believe the nearest replacement is "slow".
> >>
> >> Anyway, it still doesn't work for me, something to do with your
> >> surround sound detection?
> >>
> >> Input #0, mpegts, from '2002_20110208213300.mpg':
> >>  Duration: 00:46:59.93, start: 41691.796478, bitrate: 5906 kb/s
> >>  Program 1
> >>    Stream #0.0[0x200]: Video: mpeg2video, yuv420p, 720x576 [PAR 64:45
> >> DAR 16:9], 10000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
> >>    Stream #0.1[0x28a](eng): Audio: mp2, 48000 Hz, stereo, s16, 256 kb/s
> >>    Stream #0.2[0x240](eng): Subtitle: [6][0][0][0] / 0x0006
> >>    Stream #0.3[0x1388]: Data: [11][0][0][0] / 0x000B
> >> Output #0, mp4, to 'QI_02.08.2011.mp4':
> >>    Stream #0.0: Video: libx264, yuv420p, 1024x576 [PAR 1:1 DAR 16:9],
> >> q=0-69, 1500 kb/s, 90k tbn, 25 tbc
> >>    Stream #0.1: Audio: libfaac, 48000 Hz, 6 channels, s16, 160 kb/s
> >> Codec type mismatch for mapping #0.0 -> #0.1
> >> Old file size = 2082095864
> >> New file size = 0
> >>
> >> Editing the script to force stereo works fine - since 90%+ of my
> >> content is 576p with stereo audio, I might just keep two different
> >> versions of the script.
>
> The script seems to work well with MythTV-0.24, however, something
> might be wrong with the audio encoding.  It seems very muffled
> compared to the original.  Does anyone know what settings need to be
> adjusted to fix this?
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>

What is your input codec?
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