libs/pjproject/patches/0060-clone-sdp-for-sip-timer-refresh-invite.patch

   1 --- a/pjmedia/src/pjmedia/sdp_neg.c
   2 +++ b/pjmedia/src/pjmedia/sdp_neg.c
   3 @@ -906,7 +906,7 @@ static pj_status_t process_m_answer( pj_
   4   * after receiving remote answer.
   5   */
   6  static pj_status_t process_answer(pj_pool_t *pool,
   7 -                                 pjmedia_sdp_session *offer,
   8 +                                 pjmedia_sdp_session *local_offer,
   9                                   pjmedia_sdp_session *answer,
  10                                   pj_bool_t allow_asym,
  11                                   pjmedia_sdp_session **p_active)
  12 @@ -914,10 +914,14 @@ static pj_status_t process_answer(pj_poo
  13      unsigned omi = 0; /* Offer media index */
  14      unsigned ami = 0; /* Answer media index */
  15      pj_bool_t has_active = PJ_FALSE;
  16 +    pjmedia_sdp_session *offer;
  17      pj_status_t status;
  18
  19      /* Check arguments. */
  20 -    PJ_ASSERT_RETURN(pool && offer && answer && p_active, PJ_EINVAL);
  21 +    PJ_ASSERT_RETURN(pool && local_offer && answer && p_active, PJ_EINVAL);
  22 +
  23 +    /* Duplicate local offer SDP. */
  24 +    offer = pjmedia_sdp_session_clone(pool, local_offer);
  25
  26      /* Check that media count match between offer and answer */
  27      // Ticket #527, different media count is allowed for more interoperability,