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Old 09-29-09, 10:06 AM   #1
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Default Playing vob file Crashes MythTV with vdpau

I am using Mythbuntu 9.10 (though I've also tried MythTV .22 with Mythbuntu 9.04 and the problem is the same; any version of Myth .21 works fine). When trying to play a vob file with the internal player, the frontend always crashes. It looks like this is related to a problem with ffmpeg, which is noted in a bug report for MythTV:


The problem and temporary workaround is described here:

"This appears to be an ffmpeg bug in Closed Caption decoding. You can work around it by disabling the parsing (comment out line 2303 of libs/libavcodec/mpeg12.c) but that's not an acceptable long term solution."

Being relatively new to all this, I was wondering how easy this fix is. I take it that libs/libavcodec/mpeg12.c is not an existing file on my system that can just be edited to make things work (for instance, I can't find the file or any directory that looks like this anywhere on my computer). So is commenting out this line easy to do and how would I do it?

My own workaround is to just use mplayer instead of the internal player. This works but is not ideal (for one thing, I think that mplayer doesn't work with storage groups; but others have noted some reasons to use the internal player when playing videos in myth). So I'd prefer to get the internal player working.

Thanks for any help.
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Old 09-29-09, 11:01 AM   #2
Stephen Warren
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Default Re: Playing vob file Crashes MythTV with vdpau

This sounds like a plain MythTV/ffmpeg issue, so you'd be better off asking for help in a MythTV-specific forum or mailing list.

However, to answer your question, the solution you mentioned requires downloading the MythTV source code, editing a source (text) file, and recompiling MythTV. MythTV isn't that hard to compile, but if you're not familiar with compiling code, it will probably appear so!
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