From 53ca43fb7d32ea868fbbec898779336c992b9b00 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Tue, 26 May 2020 21:04:53 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E9=AB=98=E6=80=A7=E8=83=BD?=
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---
 src/Extension/H264.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/Extension/H264.cpp b/src/Extension/H264.cpp
index 0d591ea4..910e79e2 100644
--- a/src/Extension/H264.cpp
+++ b/src/Extension/H264.cpp
@@ -79,13 +79,20 @@ int prefixSize(const char *ptr, int len){
         return 0;
     }
 
-    if (memcmp("\x00\x00\x01", ptr, 3) == 0) {
-        return 3;
+    if (ptr[0] != 0x00 || ptr[1] != 0x00) {
+        //不是0x00 00开头
+        return 0;
     }
 
-    if (memcmp("\x00\x00\x00\x01", ptr, 4) == 0) {
+    if (ptr[2] == 0x00 && ptr[3] == 0x01) {
+        //是0x00 00 00 01
         return 4;
     }
+
+    if (ptr[2] == 0x01) {
+        //是0x00 00 01
+        return 3;
+    }
     return 0;
 }