From 8a2b24e57ae00ddc6d9221127f9855758c7d722b Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Sun, 7 May 2017 19:01:33 -0700
Subject: [PATCH] Fix frame queue corruption when trying to skip a frame with
 no buffers

---
 src/RtpFecQueue.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/RtpFecQueue.c b/src/RtpFecQueue.c
index 65767ca..e9e8a15 100644
--- a/src/RtpFecQueue.c
+++ b/src/RtpFecQueue.c
@@ -211,14 +211,18 @@ int RtpfAddPacket(PRTP_FEC_QUEUE queue, PRTP_PACKET packet, PRTPFEC_QUEUE_ENTRY
         if (queue->queueTail == NULL) {
             queue->queueHead = queue->bufferHead;
             queue->queueTail = queue->bufferTail;
-        } else {
+        } else if (queue->bufferHead != NULL) {
             queue->queueTail->next = queue->bufferHead;
             queue->queueTail = queue->bufferTail;
+        } else {
+            LC_ASSERT(queue->bufferTail == NULL);
+            LC_ASSERT(queue->bufferSize == 0);
         }
+        
         queue->bufferHead = NULL;
         queue->bufferTail = NULL;
 
-        queue->queueSize = queue->bufferSize;
+        queue->queueSize += queue->bufferSize;
         queue->nextRtpSequenceNumber = queue->bufferHighestSequenceNumber;
         
         int fecIndex = (nvPacket->fecInfo & 0xFF000) >> 12;