Merge pull request #2 from zlmediakit/master

update

README.md

+![logo](https://raw.githubusercontent.com/zlmediakit/ZLMediaKit/master/logo.png)
+
 # A lightweight ,high performance and stable stream server and client framework based on C++11.
 
  [![Build Status](https://travis-ci.org/xiongziliang/ZLMediaKit.svg?branch=master)](https://travis-ci.org/xiongziliang/ZLMediaKit)

README_CN.md

+![logo](https://raw.githubusercontent.com/zlmediakit/ZLMediaKit/master/logo.png)
 # 一个基于C++11的高性能运营级流媒体服务框架
  [![Build Status](https://travis-ci.org/xiongziliang/ZLMediaKit.svg?branch=master)](https://travis-ci.org/xiongziliang/ZLMediaKit)
 
@@ -60,7 +61,7 @@
   - 支持流量统计、推流播放鉴权等事件
   - 支持rtsp/rtmp/http虚拟主机
   - 支持flv、mp4文件录制
-  - 支持rtps/rtmp点播，支持seek
+  - 支持rtps/rtmp协议的mp4点播，支持seek
   - 支持按需拉流，无人观看自动关断拉流
   - 支持先拉流后推流，提高及时推流画面打开率
   - 支持rtsp/rtmp/http-flv/hls播放鉴权(url参数方式)

tests/CMakeLists.txt

@@ -44,9 +44,9 @@ foreach(TEST_SRC ${TEST_SRC_LIST})
     target_link_libraries(${TEST_EXE_NAME} ${LINK_LIB_LIST})
 endforeach()
 
-if(MSVC)
+if(MSVC AND SDL2_FOUND AND AVCODEC_FOUND AND AVUTIL_FOUND)
     set_target_properties(test_player PROPERTIES LINK_FLAGS "/SAFESEH:NO /SUBSYSTEM:WINDOWS" )
-endif(MSVC)
+endif()