diff --git a/encoder/static.php b/encoder/static.php
index 370fe04..0d74e3b 100755
--- a/encoder/static.php
+++ b/encoder/static.php
@@ -146,7 +146,7 @@ function update_service($which_service)
                         $input .= ' -vf "scale=' . $common_backend_resolution . '"';
                     $input .= " -b:v " . $common_backend_data_rate
                         . " -maxrate " . $common_backend_data_rate
-                        . " -bufsize 12M -pix_fmt yuv420p -profile:v high "
+                        . " -bufsize 12M "
                         . " -r " . $common_backend_framerate
                         . " -g " . $common_backend_gop
                         . " -c:a aac "
@@ -677,11 +677,10 @@ srt {
                 switch ($use_common_backend_srt) {
                     case "enable":
                         $service = 'ffmpeg -hide_banner  -fflags +discardcorrupt -re -i "udp://@239.255.254.254:39000?fifo_size=5000000&overrun_nonfatal=1&localaddr=127.0.0.1" ' .
-                            ' -c:v copy -flags2 +local_header' .
-                            ' -c:a copy -g 30 -pkt_size 1316 -flush_packets 0 ' .
+                            ' -c:v copy ' .
+                            ' -c:a copy -pkt_size 1316 -flush_packets 0 ' .
                             ' -f mpegts srt://127.0.0.1:1937?streamid=' . $srt_pass1 . '/' . $srt_pass2 . '/ji&latency=2000';
                         break;
-                    case "disable":
                         $service = 'ffmpeg -hide_banner -fflags +discardcorrupt -re -i "udp://@239.255.254.254:39000?fifo_size=5000000&overrun_nonfatal=1&localaddr=127.0.0.1" '
                             . ' -c:v ' . $data['srt']['formate']
                             . ' -vf "scale=' . str_replace("x", ":", $data['srt']['resolution']) . '"'
@@ -689,7 +688,7 @@ srt {
                             . ' -maxrate ' . $data['srt']['data_rate']
                             . ' -bufsize ' . $data['udp0']['data_rate']
                             . ' -r ' . $data['srt']['srt']
-                            . ' -g ' . $data['srt']['gop'] . ' -flags2 +local_header '
+                            . ' -g ' . $data['srt']['gop']
                             . ' -c:a ' . $data['srt']['audio_formate']
                             . ' -b:a ' . $data['srt']['audio_data_rate']
                             . ' -af "volume=' . $data['srt']['audio_db_gain'] . '"'