[mythtv-users] mythtranscode: am I doing something wrong, or is this a bug?
John Pilkington
J.Pilk at tesco.net
Wed Jan 21 11:41:38 UTC 2009
Misty P wrote:
> John Pilkington wrote:
>> Misty P wrote:
>>
>>> vince at Mythtical:/var/log/mythtv$ ls -l
>>> /mythtv/videos/1051_20080808184500.nuv
>>> -rw-r--r-- 1 mythtv mythtv 28623644884 2008-09-01 07:56
>>> /mythtv/videos/1051_20080808184500.nuv
>>>
>>> And then I cranked over mythtranscode:
>>>
>>> mythtranscode --chanid 1051 --starttime 2008-08-08-18-30-00 --mpeg2
>>> --honorcutlist --showprogress -v important
>>>
>> Try --starttime 20080808184500
>
> Hey! That worked! (...well, I was able to get farther, anyway.)
>
>> and I'm not sure that --mpeg2 will work with this file
>
> It didn't. (Said no more queue slots, but whatever.) I changed the
> command line to:
>
>
>
> mythtranscode --chanid 1051 --starttime 20080808184500 --profile
> autodetect --honorcutlist --showprogress -v important
>
>
> And now it pukes identically to jobs fired off from the UI:
>
> 2009-01-21 04:34:14.923 Using runtime prefix = /usr
> 2009-01-21 04:34:14.923 Empty LocalHostName.
> 2009-01-21 04:34:14.928 New DB connection, total: 1
> 2009-01-21 04:34:14.931 Closing DB connection named 'DBManager0'
> 2009-01-21 04:34:14.931 Enabled verbose msgs: important
> 2009-01-21 04:34:14.933 New DB connection, total: 2
> 2009-01-21 04:34:14.941 Using protocol version 40
> 2009-01-21 04:34:14.951 Found video height of 1088. This is unusual and
> more than likely the video is actually 1080 so mythtranscode will treat
> it as such.
> 2009-01-21 04:34:14.951 Transcode: Looking for autodetect profile:
> Autodetect from 1080i
> 2009-01-21 04:34:14.952 New DB connection, total: 3
> 2009-01-21 04:34:14.958 Transcode: Using autodetect profile: RTjpeg/MPEG4
> 2009-01-21 04:34:14.958 No video information found!
> 2009-01-21 04:34:14.958 Please ensure that recording profiles for the
> transcoder are set
>
>
> Since it seemed to be complaining about a profile, just for giggles I
> hit mythtranscode with "--profile 1" (whatever THAT profile is) but that
> didn't change the symptoms. (Still complains about no video information
> found.)
>
>
>
> Thanks so far... Any more ideas? I tried -v all, but all that gave me
> was more information about the database calls instead of the video
> problem. (...so I'm not bothering to echo that output here.)
>
You may get useful info about what is present from
ffmpeg -i /mythtv/videos/1051_20080808184500.nuv
or something like
mplayer -vo null -ao null -aid 0 -frames 0 -v <filename>
One frequent problem with mythtranscode appears as 'one buffer is full
and the other is empty', which often happens if one audio stream
disappears: but this is with dvb-t and probably doesn't apply to your
setup. I preprocess almost all recordings to leave only the video and
the main stereo channel, using mencoder, before using mythtranscode to
apply a cutlist. Others use Projectx or nuvexport.
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