FS-6757 FS-6713 #comment please try latest master that has a new patch in it to address this issue

src/include/private/switch_core_pvt.h

@@ -179,6 +179,9 @@ struct switch_core_session {
 
 	switch_media_handle_t *media_handle;
 	uint32_t decoder_errors;
+    switch_time_t last_read_time;
+	switch_time_t last_write_time;
+
 };
 
 struct switch_media_bug {

src/switch_core_io.c

@@ -762,11 +762,26 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_frame(switch_core_sessi
 			switch_media_bug_t *bp;
 			switch_bool_t ok = SWITCH_TRUE;
 			int prune = 0;
+			switch_time_t now = switch_micro_time_now();
+			switch_time_t diff = 0;
+			switch_size_t len = session->read_impl.decoded_bytes_per_packet;
+			unsigned char fill_data[SWITCH_RECOMMENDED_BUFFER_SIZE] = {0};
+
 			switch_thread_rwlock_rdlock(session->bug_rwlock);
 
+			if (session->last_read_time && session->last_read_time < now) {
+				diff = ((now - session->last_read_time) + 3000 ) / session->read_impl.microseconds_per_packet;
+				
+				if (diff > 1) {
+					memset(fill_data, 255, len);
+				}
+			}
+			
+			session->last_read_time = switch_micro_time_now();
+
 			for (bp = session->bugs; bp; bp = bp->next) {
 				ok = SWITCH_TRUE;
-
+				
 				if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) {
 					continue;
 				}
@@ -786,6 +801,17 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_frame(switch_core_sessi
 
 				if (ok && bp->ready && switch_test_flag(bp, SMBF_READ_STREAM)) {
 					switch_mutex_lock(bp->read_mutex);
+
+					if (diff > 1) {
+						switch_time_t tdiff = diff;
+
+						while(tdiff > 1) {
+							switch_buffer_write(bp->raw_read_buffer, fill_data, len);
+							tdiff--;
+						}
+
+					}
+					
 					if (bp->read_demux_frame) {
 						uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE];
 						int bytes = read_frame->datalen / 2;
@@ -1341,8 +1367,23 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
 	if (session->bugs) {
 		switch_media_bug_t *bp;
 		int prune = 0;
-
+		switch_time_t now = switch_micro_time_now();
+		switch_time_t diff = 0;
+		switch_size_t len = session->read_impl.decoded_bytes_per_packet;
+		unsigned char fill_data[SWITCH_RECOMMENDED_BUFFER_SIZE] = {0};
+		
 		switch_thread_rwlock_rdlock(session->bug_rwlock);
+
+		if (session->last_write_time && session->last_write_time < now) {
+			diff = ((now - session->last_write_time) + 3000 ) / session->read_impl.microseconds_per_packet;
+				
+			if (diff > 1) {
+				memset(fill_data, 255, len);
+			}
+		}
+
+		session->last_write_time = switch_micro_time_now();
+
 		for (bp = session->bugs; bp; bp = bp->next) {
 			switch_bool_t ok = SWITCH_TRUE;
 
@@ -1365,6 +1406,15 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
 
 			if (switch_test_flag(bp, SMBF_WRITE_STREAM)) {
 				switch_mutex_lock(bp->write_mutex);
+				if (diff > 1) {
+					switch_time_t tdiff = diff;
+					
+					while(tdiff > 1) {
+						switch_buffer_write(bp->raw_read_buffer, fill_data, len);
+						tdiff--;
+					}
+				}
+				
 				switch_buffer_write(bp->raw_write_buffer, write_frame->data, write_frame->datalen);
 				switch_mutex_unlock(bp->write_mutex);
 				

src/switch_ivr_async.c

@@ -1268,47 +1268,44 @@ static switch_bool_t record_callback(switch_media_bug_t *bug, void *user_data, s
 			frame.data = data;
 			frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
 
-			for (;;) {
-				status = switch_core_media_bug_read(bug, &frame, SWITCH_FALSE);
 
-				if (status == SWITCH_STATUS_SUCCESS || status == SWITCH_STATUS_BREAK) {
+			status = switch_core_media_bug_read(bug, &frame, SWITCH_FALSE);
+
+			if (status == SWITCH_STATUS_SUCCESS || status == SWITCH_STATUS_BREAK) {
 				
-					len = (switch_size_t) frame.datalen / 2;
+				len = (switch_size_t) frame.datalen / 2;
 
-					if (len && switch_core_file_write(rh->fh, mask ? null_data : data, &len) != SWITCH_STATUS_SUCCESS && rh->hangup_on_error) {
-						switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Error writing %s\n", rh->file);
-						switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
-						switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
-						return SWITCH_FALSE;
-					}
+				if (len && switch_core_file_write(rh->fh, mask ? null_data : data, &len) != SWITCH_STATUS_SUCCESS && rh->hangup_on_error) {
+					switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Error writing %s\n", rh->file);
+					switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
+					switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
+					return SWITCH_FALSE;
+				}
 
-					/* check for silence timeout */
-					if (rh->silence_threshold) {
-						switch_codec_implementation_t read_impl = { 0 };
-						switch_core_session_get_read_impl(session, &read_impl);
-						if (is_silence_frame(&frame, rh->silence_threshold, &read_impl)) {
-							if (!rh->silence_time) {
-								/* start of silence */
-								rh->silence_time = switch_micro_time_now();
-							} else {
-								/* continuing silence */
-								int duration_ms = (int)((switch_micro_time_now() - rh->silence_time) / 1000);
-								if (rh->silence_timeout_ms > 0 && duration_ms >= rh->silence_timeout_ms) {
-									switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Recording file %s timeout: %i >= %i\n", rh->file, duration_ms, rh->silence_timeout_ms);
-									switch_core_media_bug_set_flag(bug, SMBF_PRUNE);
-								}
-							}
-						} else { /* not silence */
-							if (rh->silence_time) {
-								/* end of silence */
-								rh->silence_time = 0;
-								/* switch from initial timeout to final timeout */
-								rh->silence_timeout_ms = rh->final_timeout_ms;
+				/* check for silence timeout */
+				if (rh->silence_threshold) {
+					switch_codec_implementation_t read_impl = { 0 };
+					switch_core_session_get_read_impl(session, &read_impl);
+					if (is_silence_frame(&frame, rh->silence_threshold, &read_impl)) {
+						if (!rh->silence_time) {
+							/* start of silence */
+							rh->silence_time = switch_micro_time_now();
+						} else {
+							/* continuing silence */
+							int duration_ms = (int)((switch_micro_time_now() - rh->silence_time) / 1000);
+							if (rh->silence_timeout_ms > 0 && duration_ms >= rh->silence_timeout_ms) {
+								switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Recording file %s timeout: %i >= %i\n", rh->file, duration_ms, rh->silence_timeout_ms);
+								switch_core_media_bug_set_flag(bug, SMBF_PRUNE);
 							}
 						}
+					} else { /* not silence */
+						if (rh->silence_time) {
+							/* end of silence */
+							rh->silence_time = 0;
+							/* switch from initial timeout to final timeout */
+							rh->silence_timeout_ms = rh->final_timeout_ms;
+						}
 					}
-				} else {
-					break;
 				}
 			}
 		}