[mythtv-users] Anyone else? - Reproducible frontend crash playing HD MPEG2

Rich West Rich.West at wesmo.com
Tue Dec 18 14:22:13 UTC 2007


William Price wrote:
> Hello.  I'm new to the list and I'm looking for other users who share my 
> problem.  My frontend will segfault on certain files, always at the same 
> location.  It has happened so far on two different HD recordings from 
> two different channels and is 100% reproducible.  I've tested this on 
> two different frontend boxes, both running 64-bit Fedora 7.  Aside from 
> this, Myth has been rather stable.
>
> Any help or redirection is appreciated; what follows is the tail of my 
> console error out:
>
> [mpeg2video @ 0x2aaaac4a6040]invalid mb type in P Frame at 3 39
> [mpeg2video @ 0x2aaaac4a6040]invalid mb type in P Frame at 29 40
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 63 39
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 19 41
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 28 40
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 56 40
> [mpeg2video @ 0x2aaaac4a6040]mb incr damaged
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 60 41
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 3 42
> [mpeg2video @ 0x2aaaac4a6040]mb incr damaged
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 62 42
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 35 43
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 7 44
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 60 43
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 50 44
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 42 44
> [mpeg2video @ 0x2aaaac4a6040]ac-tex damaged at 77 44
> [mpeg2video @ 0x2aaaac4a6040]end mismatch left=55 81AC
> [mpeg2video @ 0x2aaaac4a6040]Warning MVs not available
> [mpeg2video @ 0x2aaaac4a6040]end mismatch left=54 8196
> [mpeg2video @ 0x2aaaac4a6040]Warning MVs not available
> [mpeg2video @ 0x2aaaac4a6040]end mismatch left=55 81AC
> [mpeg2video @ 0x2aaaac4a6040]Warning MVs not available
> [mpeg2video @ 0x2aaaac4a6040]end mismatch left=54 8196
> Segmentation fault

I get these errors on my backend system when playing HD recordings that 
were captured via an OTA antenna.  The recordings play fine (most 
times), but the errors usually correspond to dropped signal/bad data in 
the captured video.  I haven't had a frontend crash because of this, 
though...

-Rich


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