diff --git a/trunk/src/rtmp/srs_protocol_rtmp.cpp b/trunk/src/rtmp/srs_protocol_rtmp.cpp
index cae3afd97..1f36efee9 100644
--- a/trunk/src/rtmp/srs_protocol_rtmp.cpp
+++ b/trunk/src/rtmp/srs_protocol_rtmp.cpp
@@ -1086,6 +1086,12 @@ int SrsRtmpServer::start_play(int stream_id)
     // |RtmpSampleAccess(false, false)
     if (true) {
         SrsSampleAccessPacket* pkt = new SrsSampleAccessPacket();
+
+        // allow audio/video sample.
+        // @see: https://github.com/winlinvip/simple-rtmp-server/issues/49
+        pkt->audio_sample_access = true;
+        pkt->video_sample_access = true;
+        
         if ((ret = protocol->send_and_free_packet(pkt, stream_id)) != ERROR_SUCCESS) {
             srs_error("send |RtmpSampleAccess(false, false) message failed. ret=%d", ret);
             return ret;