diff --git a/README.md b/README.md
index 88a88de44..ea8667851 100755
--- a/README.md
+++ b/README.md
@@ -501,6 +501,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v2.0, 2014-01-02, fix [#263](https://github.com/winlinvip/simple-rtmp-server/issues/263), srs-librtmp flv read tag should init size. 2.0.82
 * v2.0, 2015-01-01, hotfix [#270](https://github.com/winlinvip/simple-rtmp-server/issues/270), memory leak for http client post. 2.0.81
 * v2.0, 2014-12-12, fix [#266](https://github.com/winlinvip/simple-rtmp-server/issues/266), aac profile is object id plus one. 2.0.80
 * v2.0, 2014-12-29, hotfix [#267](https://github.com/winlinvip/simple-rtmp-server/issues/267), the forward dest ep should use server. 2.0.79
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 27418da23..9833b7add 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    81
+#define VERSION_REVISION    82
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
 #define RTMP_SIG_SRS_ROLE "origin/edge server"
diff --git a/trunk/src/kernel/srs_kernel_flv.cpp b/trunk/src/kernel/srs_kernel_flv.cpp
index a9a4a3db5..504cda803 100644
--- a/trunk/src/kernel/srs_kernel_flv.cpp
+++ b/trunk/src/kernel/srs_kernel_flv.cpp
@@ -316,6 +316,7 @@ int SrsFlvDecoder::read_tag_header(char* ptype, int32_t* pdata_size, u_int32_t*
     
     // DataSize UI24
     char* pp = (char*)pdata_size;
+    pp[3] = 0;
     pp[2] = th[1];
     pp[1] = th[2];
     pp[0] = th[3];