SEGV in vconv.c for video call with RX thread

[cspiel1]

• configure rtp_rxmode thread
• Initiate a call with video

As soon as the video thread starts baresip crashes.

#0  yuyv422_to_yuv420p
    (xsoffs=0, xdoffs=0, width=640, rw=1, yd=0, ys=3019894192, ys2=3019894193, dd0=0x7fffc85ca110 "", dd1=0x7fffc8615110 "", dd2=0x7fffc8627d10 "", lsd=640, sd0=0x7fffc87fd000 "\255z\254\202\255y\255\177\255|\254\200\253{\254\177\254|\255|\251}\255}\252{\252~\254|\254\177\251\177\251}\253\177\253\200\251\177\253\201\254\177\247\200\245}\250\177\246}\245\177\243}\243\177\245}\244\200\243}\244\201\243|\241\201\243\177\241\201\237~\235\200\235~\236{\240~\234}\227~\222{\220\200\220\177\220\203\223\201\222\202\222\202\220~\215\177\220{\215~\220|\216y\220\200\217|\214\200\214\177\210\200\210~\206~\206y\204\177\202z\205\177\205\201\204}\202\201\202}}~n~r\200t~w\201z}z\205|}s\202\202x\242\212\246r\252\211\252r\251\206\250x\251\211\251u\246\217\247r\247\215\251q\253\214\252q\253\211\247s\252\211"..., sd1=0x0, sd2=0x0, lss=1280) at /home/cspiel/src/re/rem/vidconv/vconv.c:246
#1  0x00007ffff7f2a8cd in vidconv (dst=0x7fffc85ca0d0, src=0x7fffb3ffed10, r=0x7fffb3ffec20) at /home/cspiel/src/re/rem/vidconv/vconv.c:783
#2  0x00007ffff7fa0065 in encode_rtp_send (vtx=0x5555556f7a08, frame=0x7fffb3ffed10, packet=0x0, timestamp=4666272399)
    at /home/cspiel/src/baresip/src/video.c:435
#3  0x00007ffff7fa0257 in vidsrc_frame_handler (frame=0x7fffb3ffed10, timestamp=4666272399, arg=0x5555556f7a08) at /home/cspiel/src/baresip/src/video.c:488
#4  0x00007ffff44c7eaf in call_frame_handler
    (st=0x55555575bfc0, buf=0x7fffc87fd000 "\255z\254\202\255y\255\177\255|\254\200\253{\254\177\254|\255|\251}\255}\252{\252~\254|\254\177\251\177\251}\253\177\253\200\251\177\253\201\254\177\247\200\245}\250\177\246}\245\177\243}\243\177\245}\244\200\243}\244\201\243|\241\201\243\177\241\201\237~\235\200\235~\236{\240~\234}\227~\222{\220\200\220\177\220\203\223\201\222\202\222\202\220~\215\177\220{\215~\220|\216y\220\200\217|\214\200\214\177\210\200\210~\206~\206y\204\177\202z\205\177\205\201\204}\202\201\202}}~n~r\200t~w\201z}z\205|}s\202\202x\242\212\246r\252\211\252r\251\206\250x\251\211\251u\246\217\247r\247\215\251q\253\214\252q\253\211\247s\252\211"..., timestamp=4666272399) at /home/cspiel/src/baresip/modules/v4l2/v4l2.c:359
#5  0x00007ffff44c800d in read_frame (st=0x55555575bfc0) at /home/cspiel/src/baresip/modules/v4l2/v4l2.c:399
#6  0x00007ffff44c82a6 in read_thread (arg=0x55555575bfc0) at /home/cspiel/src/baresip/modules/v4l2/v4l2.c:472
#7  0x00007ffff7ee0a23 in handler (p=0x55555574f180) at /home/cspiel/src/re/src/thread/thread.c:105
#8  0x00007ffff7f1f0a6 in handler (p=0x5555556fe450) at /home/cspiel/src/re/src/thread/posix.c:21
#9  0x00007ffff75b439d in start_thread (arg=<optimized out>) at pthread_create.c:447
#10 0x00007ffff763949c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

[cspiel1]

frame #0
(gdb) p id
$1 = 0
(gdb) p is
$2 = 257191936

[cspiel1]

@sreimers Maybe this was introduced with #1240 ?

[sreimers]

Can you try: baresip/baresip#3266

[sreimers]

A better fix: #1257

[cspiel1]

A better fix: #1257

Indeed. This solves the SEGV.