diff --git a/trunk/3rdparty/ccache/build_ccache.sh b/trunk/3rdparty/ccache/build_ccache.sh
deleted file mode 100755
index 53b187882..000000000
--- a/trunk/3rdparty/ccache/build_ccache.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-# check exists.
-if [[ -f /usr/local/bin/ccache ]]; then 
-    echo "ccache is ok";
-    exit 0;
-fi
-
-# check sudoer.
-sudo echo "ok" > /dev/null 2>&1; 
-ret=$?; if [[ 0 -ne ${ret} ]]; then echo "you must be sudoer"; exit 1; fi
-
-unzip ccache-3.1.9.zip && cd ccache-3.1.9 && ./configure && make
-ret=$?; if [[ $ret -ne 0 ]]; then echo "build ccache failed."; exit $ret; fi
-
-sudo cp ccache /usr/local/bin && sudo ln -s ccache /usr/local/bin/gcc && sudo ln -s ccache /usr/local/bin/g++ && sudo ln -s ccache /usr/local/bin/cc && sudo ln -s ccache /usr/local/bin/c++
-ret=$?; if [[ $ret -ne 0 ]]; then echo "install ccache failed."; exit $ret; fi
diff --git a/trunk/3rdparty/ccache/ccache-3.1.9.zip b/trunk/3rdparty/ccache/ccache-3.1.9.zip
deleted file mode 100644
index 10c96dd0c..000000000
Binary files a/trunk/3rdparty/ccache/ccache-3.1.9.zip and /dev/null differ
diff --git a/trunk/3rdparty/ccache/readme.txt b/trunk/3rdparty/ccache/readme.txt
deleted file mode 100644
index 611d9eaee..000000000
--- a/trunk/3rdparty/ccache/readme.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-ccache是samba组织提供的加速编译过程的工具，
-使用虚拟机编译可以考虑用这个工具，让编译过程飞快。
-
-链接：
-    http://ccache.samba.org/
-    http://samba.org/ftp/ccache/ccache-3.1.9.tar.xz
-    http://ccache.samba.org/manual.html
-
-安装方法：
-    bash build_ccache.sh
-注意：要求以sudoer执行，要修改文件。
\ No newline at end of file
diff --git a/trunk/3rdparty/srs-bench/avatar.h264 b/trunk/3rdparty/srs-bench/avatar.h264
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index 000000000..a82911a64
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