Merged revisions 157503 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r157503 | mmichelson | 2008-11-18 16:47:57 -0600 (Tue, 18 Nov 2008) | 13 lines

Add some missing invite state changes necessary in the sip_write
function. Not setting the invite state correctly on the call was
resulting in the Record application leaving empty files. I also
have updated the doxygen comment next to the declaration of the
INV_EARLY_MEDIA constant to reflect that we also use this state
when we *send* a 18X response to an INVITE.

(closes issue #13878)
Reported by: nahuelgreco
Patches:
      sip-early-media-recording-1.4.22.patch uploaded by nahuelgreco (license 162)
	  Tested by: putnopvut

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@157512 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -5640,6 +5640,7 @@ static int sip_write(struct ast_channel *ast, struct ast_frame *frame)
 				    !ast_test_flag(&p->flags[0], SIP_PROGRESS_SENT) &&
 				    !ast_test_flag(&p->flags[0], SIP_OUTGOING)) {
 					ast_rtp_new_source(p->rtp);
+					p->invitestate = INV_EARLY_MEDIA;
 					transmit_response_with_sdp(p, "183 Session Progress", &p->initreq, XMIT_UNRELIABLE, FALSE);
 					ast_set_flag(&p->flags[0], SIP_PROGRESS_SENT);	
 				}
@@ -5657,6 +5658,7 @@ static int sip_write(struct ast_channel *ast, struct ast_frame *frame)
 				if ((ast->_state != AST_STATE_UP) &&
 				    !ast_test_flag(&p->flags[0], SIP_PROGRESS_SENT) &&
 				    !ast_test_flag(&p->flags[0], SIP_OUTGOING)) {
+					p->invitestate = INV_EARLY_MEDIA;
 					transmit_response_with_sdp(p, "183 Session Progress", &p->initreq, XMIT_UNRELIABLE, FALSE);
 					ast_set_flag(&p->flags[0], SIP_PROGRESS_SENT);	
 				}
@@ -5677,6 +5679,7 @@ static int sip_write(struct ast_channel *ast, struct ast_frame *frame)
 					if ((ast->_state != AST_STATE_UP) &&
 					    !ast_test_flag(&p->flags[0], SIP_PROGRESS_SENT) &&
 					    !ast_test_flag(&p->flags[0], SIP_OUTGOING)) {
+						p->invitestate = INV_EARLY_MEDIA;
 						transmit_response_with_sdp(p, "183 Session Progress", &p->initreq, XMIT_UNRELIABLE, FALSE);
 						ast_set_flag(&p->flags[0], SIP_PROGRESS_SENT);	
 					}