Recently I found a potential bug in PJSIP.
//=============================================
static void on_rx_rtp( pj_ioqueue_key_t *key,
pj_ioqueue_op_key_t *op_key,
pj_ssize_t bytes_read)
{
/* See if source address of RTP packet is different than the
* configured address, and switch RTP remote address to
* source packet address after several consecutive packets
* have been received.
*/
if (bytes_read>0 &&
(udp->options & PJMEDIA_UDP_NO_SRC_ADDR_CHECKING)==0)
{
// BUG
}
}
//=============================================
In the branch I marked "BUG", the code access the "udp->rtp_src_addr", and
this runs in the thread created by "pjmedia_endpt_create".
But the rtcp_src_addr might be reset to all "0" in main event process
thread. Which would then cause an assert fail.
(I can find the excat place where rtp_src_addr of a transport is modified.)
A trivial walk aroud is use PJMEDIA_UDP_NO_SRC_ADDR_CHECKING when create
this transport, which would skip the whole branch.
--
look to the things around you,the immediate world around you, if you are
alive,it will mean something to you ??Paul Strand
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