[Opalvoip-devel] Transcoder crashes

[Pradeep K. <itp...@gm...>]

Hi OpalDevTeam,

I've found below crash in opal-3.12, Eridani:

#0  0x00007f9d1de0f2ae in memcpy () from /lib/libc.so.6
#1  0x00007f9d11f78b47 in PluginVideoDecoder<x264>::
OutputImage (this=<value optimized out>, planes=<value optimized out>,
raster=<value optimized out>,
    width=<value optimized out>, height=<value optimized out>, rtp=...,
flags=@0x7f9d083824fc) at /usr/include/bits/string3.h:52
#2  0x00007f9d11f78524 in H264_Decoder::Transcode (this=0x7f9d0eb90700,
fromPtr=<value optimized out>, fromLen=<value optimized out>,
toPtr=0xa1f1530,
    toLen=@0x7f9d08382500, flags=@0x7f9d083824fc) at h264-x264.cxx:797
#3  0x00007f9d11f7c1a5 in PluginCodec<x264>::Transcode_s
(context=0xa1f154c, fromPtr=0x0, fromLen=0x6, toPtr=0x8, toLen=0x0,
flags=0x0)
    at opal-3.12/plugins/../include/codec/opalplugin.hpp:831
#4  0x00007f9d23ddc15a in OpalPluginTranscoder::Transcode
(this=0x7f9d0eb90500, from=0x24eb270, fromLen=0x7f9d08382504, to=0xa1f1530,
toLen=0x7f9d08382500,
    flags=0x7f9d083824fc)
    at opal-3.12/include/codec/opalpluginmgr.h:219
#5  0x00007f9d23dd1d6d in OpalPluginVideoTranscoder::DecodeFrame
(this=0x7f9d0eb90390, src=..., dstList=...)
    at opal-3.12/src/codec/opalpluginmgr.cxx:1080
#6  0x00007f9d23dd1ac3 in OpalPluginVideoTranscoder::DecodeFrames
(this=0x7f9d0eb90390, src=..., dstList=...)
    at opal-3.12/src/codec/opalpluginmgr.cxx:1045
#7  0x00007f9d23dd0e40 in OpalPluginVideoTranscoder::ConvertFrames
(this=0x7f9d0eb90390, src=..., dstList=...)
    at opal-3.12/src/codec/opalpluginmgr.cxx:896
#8  0x00007f9d238b39a2 in OpalMediaPatch::Sink::WriteFrame
(this=0x7f9d0f622f30, sourceFrame=...)
    at opal-3.12/src/opal/patch.cxx:981
#9  0x00007f9d238b27ab in OpalMediaPatch::DispatchFrame
(this=0x7f9d0eb8fd60, frame=...)
    at opal-3.12/src/opal/patch.cxx:809
#10 0x00007f9d238b19fd in OpalMediaPatch::Main (this=0x7f9d0eb8fd60)
    at opal-3.12/src/opal/patch.cxx:692
#11 0x00007f9d238b66ed in PThreadObj<OpalMediaPatch>::Main
(this=0x7f9d04125670)
    at ptlib-2.12/include/ptlib/thread.h:664
#12 0x00007f9d22b59708 in PThread::PX_ThreadMain (arg=0x7f9d04125670) at
ptlib/unix/tlibthrd.cxx:387
#13 0x00007f9d26ed09ca in start_thread () from /lib/libpthread.so.0
#14 0x00007f9d1de7021d in clone () from /lib/libc.so.6
#15 0x0000000000000000 in ?? ()

I don't know the exact scenario when it happens, but the little I know is,
when RTP data packets for Video/Audio stops coming or gets delayed in
network, this crash happens.

Please, update me if it has been reported by anybody else, earlier, and If
we've solution for it.

*-----------------------------------*
Regards
*Pradeep Kumar *