[PATCH] Mp4: fixed setting wrong mdat atom size in very rare cases.

[胡聪 (hucc)]

Hi,

# HG changeset patch
# User hucongcong <hucong.c at foxmail.com>
# Date 1479719580 -28800
#      Mon Nov 21 17:13:00 2016 +0800
# Node ID f43feabe2e45ec102ffbe36428ccb504ff1526d2
# Parent  6a26016e9a138102798a7ec3e74747fbd6018f82
Mp4: fixed setting wrong mdat atom size in very rare cases.

diff -r 6a26016e9a13 -r f43feabe2e45 src/http/modules/ngx_http_mp4_module.c
--- a/src/http/modules/ngx_http_mp4_module.c	Tue Nov 15 18:11:46 2016 +0300
+++ b/src/http/modules/ngx_http_mp4_module.c	Mon Nov 21 17:13:00 2016 +0800
@@ -1229,7 +1229,7 @@ ngx_http_mp4_update_mdat_atom(ngx_http_m
 
     atom_header = mp4->mdat_atom_header;
 
-    if ((uint64_t) atom_data_size > (uint64_t) 0xffffffff) {
+    if ((uint64_t) atom_data_size > (uint64_t) 0xfffffff7) {
         atom_size = 1;
         atom_header_size = sizeof(ngx_mp4_atom_header64_t);
         ngx_mp4_set_64value(atom_header + sizeof(ngx_mp4_atom_header_t),