diff --git a/trunk/src/kernel/srs_kernel_codec.cpp b/trunk/src/kernel/srs_kernel_codec.cpp
index 7351573c0..63b787d54 100644
--- a/trunk/src/kernel/srs_kernel_codec.cpp
+++ b/trunk/src/kernel/srs_kernel_codec.cpp
@@ -708,6 +708,9 @@ srs_error_t SrsFormat::video_avc_demux(SrsBuffer* stream, int64_t timestamp)
     return err;
 }
 
+// For media server, we don't care the codec, so we just try to parse sps-pps, and we could ignore any error if fail.
+// LCOV_EXCL_START
+
 srs_error_t SrsFormat::avc_demux_sps_pps(SrsBuffer* stream)
 {
     // AVCDecoderConfigurationRecord
@@ -1016,6 +1019,8 @@ srs_error_t SrsFormat::avc_demux_sps_rbsp(char* rbsp, int nb_rbsp)
     return err;
 }
 
+// LCOV_EXCL_STOP
+
 srs_error_t SrsFormat::video_nalu_demux(SrsBuffer* stream)
 {
     srs_error_t err = srs_success;