Index: libavformat/rtmpproto.c
===================================================================
--- libavformat/rtmpproto.c	(revision 26402)
+++ libavformat/rtmpproto.c	(working copy)
@@ -930,8 +930,8 @@
     int pktsize, pkttype;
     uint32_t ts;
     const uint8_t *buf_temp = buf;
-
-    if (size < 11) {
+    // rt->flv_off will never be always zero if there are multiple rtmp packets inside one flv packet
+    if (!rt->flv_off && size < 11) {
         av_log(LOG_CONTEXT, AV_LOG_DEBUG, "FLV packet too small %d\n", size);
         return 0;
     }
@@ -972,8 +972,12 @@
         if (rt->flv_size - rt->flv_off > size_temp) {
             bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, size_temp);
             rt->flv_off += size_temp;
+            // Making size_temp = 0 when it reads full of buffer
+            size_temp = 0;
         } else {
             bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, rt->flv_size - rt->flv_off);
+            // Reducing size_temp by as many bytes as read from the buffer
+            size_temp -= (rt->flv_size - rt->flv_off);
             rt->flv_off += rt->flv_size - rt->flv_off;
         }