[libav-bugs] [Bug 327] New: wmaprodec: Arithmetic exception

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Wed Jul 11 18:09:32 CEST 2012


https://bugzilla.libav.org/show_bug.cgi?id=327

           Summary: wmaprodec: Arithmetic exception
           Product: Libav
           Version: git HEAD
          Platform: X86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: libavcodec
        AssignedTo: bugzilla at libav.org
        ReportedBy: yhuelf at gmail.com


I tried my VLC's Smooth Streaming module with a VC-1 / WMAP stream.

I can easily reproduce the bug and provide more information if you care about
that. If you want to reproduce the bug, you have to apply the Smooth Streaming
patch and some MP4 patches I posted on VLC's ML the 25th of June, and then run:

./vlc -v
http://mediadl.microsoft.com/mediadl/iisnet/smoothmedia/Experience/BigBuckBunny_720p.ism/Manifest

head of the backtrace:

Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread 0xb09c2b40 (LWP 17213)]
0xae82f1dd in decode_init (avctx=0xb061ee00) at libavcodec/wmaprodec.c:402
402                              / s->avctx->sample_rate + 2;
(gdb) bt
#0  0xae82f1dd in decode_init (avctx=0xb061ee00) at libavcodec/wmaprodec.c:402
#1  0xaeb3af6f in avcodec_open2 (avctx=0xb061ee00, codec=0xaee6e620,
options=0x0) at libavcodec/utils.c:805
#2  0xae83bdb6 in ffmpeg_OpenCodec (p_dec=0xb0609a70) at
../../../../modules/codec/avcodec/avcodec.c:475
#3  0xae83f950 in InitAudioDec (p_dec=0xb0609a70, p_context=0xb061ee00,
p_codec=0xaee6e620, i_codec_id=86054, 
    psz_namecodec=0xb7db796c "Windows Media Audio Professional") at
../../../../modules/codec/avcodec/audio.c:170
#4  0xae83912c in OpenDecoder (p_this=0xb0609a70) at
../../../../modules/codec/avcodec/avcodec.c:369

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