[mythtv] MPEG2->MPEG2 Transcode Errored (0.19 fixes)

Thomas Börkel thomas at boerkel.de
Tue Aug 8 06:05:46 UTC 2006


Geoffrey Hausheer wrote:

>> When I run mythtranscode from the command line like this, it works OK:
>> mythtranscode -c 3649 -s "2006-08-01 22:00:00" -o /work2/test.mpg -v all
>> --mpeg2 --honorcutlist > /work2/mythtranscode.log
>> When it is run from mythbackend, it errors.
>> http://www.boerkel.de/mythtranscode.log.gz
>> http://www.boerkel.de/mythbackend.log.gz
>> Any hints?
> that 'unkown socket closing' message is very odd.  It isn't something

I will look if this message also occurs during the next successful 
transcode with another show.

> I know how to debug if it can't be duplicated in a stand-alone fasion.

Maybe this error also happens for you, if I give you the first x MB of 
that recording and you try to transcode it from mythbackend?

>  Perhaps one of the jobque experts would have a better idea.

Funny is, that the transcode error happens only with this DVB recording 
so far (I use DVB only since 10 days, before I used analog and had no 

The only thing different in this recording from the other DVB 
recordings, that worked so far, is that it has 2 audio tracks. And 
tcprobe isn't too happy with it either, it sees no audio track:

[tcprobe] MPEG transport stream (TS)
(ts_reader.c) Pids: 0x0 0x1700 0xff 0x20 0x100 0x101
[tcprobe] summary for 3649_20060801220000.mpg, (*) = not default, 0 = 
not detected
    no audio track: use "null" import module for audio

After manual mythtranscode, tcprobe still sees only 1 audio track, but 
mplayer sees both:

[tcprobe] MPEG program stream (PS)
[tcprobe] summary for /work2/video/test.mpg, (*) = not default, 0 = not 
import frame size: -g 720x576 [720x576]
      aspect ratio: 4:3 (*)
        frame rate: -f 25.000 [25.000] frc=3
                    PTS=0.3105, frame_time=40 ms, bitrate=15000 kbps
       audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
                    PTS=0.3200, bitrate=448 kbps
                    -D 0 --av_fine_ms -9 (frames & ms) [0] [0]


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