[FFmpeg-trac] #1510(avformat:new): Stability issues with mpegts streams
FFmpeg
trac at avcodec.org
Wed Jul 4 15:58:12 CEST 2012
#1510: Stability issues with mpegts streams
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Reporter: mufin | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mpegts | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by mufin):
Replying to [comment:1 cehoyos]:
> Replying to [ticket:1510 mufin]:
> > Another one is a crash (segfault) in mp_decode_layer3 in
mpegaudiodec.c. That is strange as such, since there is no mp3 content in
my streams.
> > I cannot give more detailed information since even with optimizations
turned off and debbuging symbols turned on, the topmost stackframe looks
corrupted.
> Did you try static compilation with --disable-asm --disable-yasm
--disable-optimizations --enable-debug=3 ?
> An alternative is to use valgrind.
I will try static the compilation, you suggested. The problem is, that the
solution I proposed works for me and I have only a finite amount of time
for further experiments (reproducing the faulty behavior always takes
quite some time).
I already have tried valgrind, but appearently it slows down processing so
much, that completely other effects occur and the problem I describe does
not appear (at least not after 1.5 days).
I have seen some uninitialized jump or move warnings but those were in
different code sections.
And valgrind somehow raises a SIGILL at some point in time, which I think
comes from valgrind not knowing
a certain instruction. I have attached an example Valgrind output of our
application.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1510#comment:2>
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