I am using release 1.16 from pjmedia on windows and I had a few times an
exception in stream.c in the procedure get_frame.
The problem is not reproducible, and occurs rarely, but as it is fatal we
have to solve it.
With the help of Debug Diag I retrieved the following stack dump from the
crash:
Full Call Stack
Function
Arg 1
Arg 2
Arg 3
Arg 4
Source
SIPMediaControl!get_frame+2ef
084bd82c
152ef8f4
152ef92c
65c0cbdb
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\stream.c @ 558 + 3
SIPMediaControl!pjmedia_port_get_frame+1c
084bd82c
152ef8f4
00000001
00000002
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\port.c @ 68 + 4
SIPMediaControl!read_port+2b
084afc34
000000a0
152ef94c
084afde0
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\conference.c @ 1418
SIPMediaControl!get_frame+e6
00000000
152ef998
152ef9b8
65c1472e
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\conference.c @ 1864 + 16
SIPMediaControl!pjmedia_port_get_frame+1c
084adf80
152ef998
084adf80
152ef998
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\port.c @ 68 + 4
SIPMediaControl!clock_callback+ae
084afde0
084afc18
00000000
0eb601ac
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\master_port.c @ 191 + 19
SIPMediaControl!clock_thread+d4
084afdc0
00000000
152ef9f4
7664336a
c:\pjsip\pjproject-1.16\pjmedia\src\pjmedia\clock_thread.c @ 265 + a
SIPMediaControl!thread_main+3c
0eb601ac
152efa34
77469f72
0eb601ac
c:\pjsip\pjproject-1.16\pjlib\src\pj\os_core_win32.c @ 451 + 9
kernel32!BaseThreadInitThunk+e
0eb601ac
055b1c6f
00000000
00000000
ntdll!__RtlUserThreadStart+70
65bf7a80
0eb601ac
ffffffff
774f7428
ntdll!_RtlUserThreadStart+1b
65bf7a80
0eb601ac
00000000
00000000
Exception Information
SIPMEDIACONTROL!GET_FRAME+2EFIn WER1994.tmp.hdmp the assembly instruction at
SIPMediaControl!get_frame+2ef ..\SIPMediaControl.dll has caused an access
violation exception (0xC0000005) when trying to read from memory location
0x00000010 on thread 84
Checking the code it seems that the stream->codec is null.
Any suggestion how to find the cause of this error is welcome.
Thanks,
Coen van Geerestein
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