update gb28181 config wait_keyframe default on

trunk/conf/full.conf

@@ -319,7 +319,8 @@ stream_caster {
     rtp_port_min        58200;
     rtp_port_max        58300;
     # Whether wait for keyframe then forward to RTMP.
-    wait_keyframe       off;
+    # default: on
+    wait_keyframe       on;
     # Max timeout in seconds for RTP stream, if timeout, RTCP bye and close stream.
     # default: 30
     rtp_idle_timeout    30;

trunk/conf/push.gb28181.conf

@@ -36,7 +36,7 @@ stream_caster {
     # 是否等待关键帧之后，再转发，
     # off:不需等待，直接转发
     # on:等第一个关键帧后，再转发
-    wait_keyframe       off;
+    wait_keyframe       on;
     
     # rtp包空闲等待时间，如果指定时间没有收到任何包
     # rtp监听连接自动停止，发送BYE命令

trunk/src/app/srs_app_config.cpp

@@ -4543,7 +4543,7 @@ bool SrsConfig::get_stream_caster_gb28181_audio_enable(SrsConfDirective* conf)
 
 bool SrsConfig::get_stream_caster_gb28181_wait_keyframe(SrsConfDirective* conf)
 {
-    static bool DEFAULT = false;
+    static bool DEFAULT = true;
 
     if (!conf) {
         return DEFAULT;