[mythtv-users] MythExport failing

James Thorpe james at pawsforthorpe.co.uk
Wed Sep 1 13:32:53 UTC 2010


  On 31/08/2010 17:36, John Baab wrote:
>
> Run the ffmpeg line from your log by hand, it should give you a better
> clue as to what is going on.  For ipod like devices I would recommend
> enabling medibuntu and swaping out libmp3lame with libfaac in your
> config.  See the wiki for more information.

Thanks for the suggestions.  After getting libfaac and switching to it, 
and running by hand, I get this:

[libfaac @ 0x2003dd0]encoding 0 channel(s) is not allowed
Error while opening codec for output stream #0.1 - maybe incorrect 
parameters such as bit_rate, rate, width or height

Just wondering if there's any info on which of those might be incorrect 
- the command is as was generated by mythexport, with the exception of 
the switch to libfaac instead of libmp3lame.
The command being run is:

nice -n19 ffmpeg -i /mythdata/recordings/11211_20100830175800.mpg -y -v 
1 -vcodec libx264 -b 600kb -bt 175k -refs 1 -deblockalpha 0 -deblockbeta 
0 -partitions +parti4x4+partp8x8 -me_method full -subq 6 -me_range 21 
-bf 0 -level 30 -g 300 -keyint_min 30 -sc_threshold 40 -rc_eq 
"blurCplx^(1-qComp)" -qcomp 0.7 -qmax 51 -qdiff 4 -i_qfactor 0.71428572 
-maxrate 768k -bufsize 2M -cmp +chroma -flags +loop+slice -s 480x320 
-aspect 3:2 -acodec libfaac -ab 192kb -ar 48000 -f mp4 -pass 2 
'/data/MythExports/Channel-4-The_Simpsons-Home_Away_from_Homer-20100830175800.mp4' 
2>&1

Thanks,
James.


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