fix #111, always use 31bits timestamp. 0.9.143.

@@ -242,6 +242,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v1.0, 2014-06-30, fix [#111](https://github.com/winlinvip/simple-rtmp-server/issues/111), always use 31bits timestamp. 0.9.143.
 * v1.0, 2014-06-28, response the call message with null. 0.9.137
 * v1.0, 2014-06-28, fix [#110](https://github.com/winlinvip/simple-rtmp-server/issues/110), thread start segment fault, thread cycle stop destroy thread. 0.9.136
 * v1.0, 2014-06-27, fix [#109](https://github.com/winlinvip/simple-rtmp-server/issues/109), fix the system jump time, adjust system startup time. 0.9.135

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR "0"
 #define VERSION_MINOR "9"
-#define VERSION_REVISION "142"
+#define VERSION_REVISION "143"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"

@@ -1128,6 +1128,10 @@ int SrsProtocol::read_message_header(SrsChunkStream* chunk, char fmt, int bh_siz
         pp[2] = *p++;
         pp[1] = *p++;
         pp[0] = *p++;
+
+        // always use 31bits timestamp, for some server may use 32bits extended timestamp.
+        // @see https://github.com/winlinvip/simple-rtmp-server/issues/111
+        timestamp &= 0x7fffffff;
         
         /**
         * RTMP specification and ffmpeg/librtmp is false,