tweak codec ptime bs

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10580 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -722,8 +722,6 @@ static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_f
 								tech_pvt->mismatch_count++;
 							}
 							
-							tech_pvt->last_codec_ms = codec_ms;
-							
 							if (tech_pvt->mismatch_count > MAX_MISMATCH_FRAMES) {
 								if (switch_rtp_ready(tech_pvt->rtp_session) && codec_ms != tech_pvt->codec_ms) {
 									const char *val;

src/switch_core_io.c

@@ -610,7 +610,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
 	if ((session->write_codec && frame->codec && session->write_codec->implementation != frame->codec->implementation)) {
 		if (session->write_codec->implementation->codec_id == frame->codec->implementation->codec_id) {
 			ptime_mismatch = TRUE;
-			if (!need_codec) {
+			if (switch_test_flag(frame->codec, SWITCH_CODEC_FLAG_PASSTHROUGH) || switch_test_flag(session->read_codec, SWITCH_CODEC_FLAG_PASSTHROUGH)) {
 				status = perform_write(session, frame, flags, stream_id);
 				goto error;
 			}