[mythtv-users] Transcoding and H264

[kanetse@gmail.com]

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?