[mythtv-users] HDHomerun and previews (crashes backend)
billymacdonald at gmail.com
Thu Jan 25 22:47:11 UTC 2007
On 1/25/07, Mark Chang <mark.chang at gmail.com> wrote:
> On 1/25/07, Michael Tiller <michael.tiller at gmail.com> wrote:
> > My problem is with thumbnail generation. The FFMPEG code is generally not
> > very robust to garbage data structures. As a result, it will divide by
> > zero, dereference null pointers, etc. Where does the garbage come from?
> > Well it consistently comes from my HDHomerun. This is a bit odd since I'm
> > capturing from QAM and my signal strengths all seem quite reasonable. So it
> > is not a reception problem and I'm assuming its not a lock problem. But
> > nevertheless when FFMPEG tries to generate previous it crashes the backend
> > (at this point it is always a segfault but sometimes it comes directly from
> > the FFMPEG code and sometimes it comes from free/malloc due, presumably, to
> > a corrupte malloc heap or something).
> I'm using ubuntu edgy binaries w/OTA through my HDHR. Because of me
> messing with my antenna, I have had lots of artifacts on recordings.
> The thumbnail generation has never crashed my system, FWIW.
I recently got one of these devices. I haven't had the crashes but I
do believe I've seen something in the logs to the effect that preview
generation failed. I'll look when I get home.
I've also noticed that at the beginning of a few recordings there are
often a few glitches and dropouts, but then it's fine for the rest of
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