diff --git a/libs/scrap/src/common/hwcodec.rs b/libs/scrap/src/common/hwcodec.rs
index 3ee91ca8b..aba0d55d0 100644
--- a/libs/scrap/src/common/hwcodec.rs
+++ b/libs/scrap/src/common/hwcodec.rs
@@ -23,7 +23,7 @@ use hwcodec::{
 const CFG_KEY_ENCODER: &str = "bestHwEncoders";
 const CFG_KEY_DECODER: &str = "bestHwDecoders";
 
-const DEFAULT_PIXFMT: AVPixelFormat = AVPixelFormat::AV_PIX_FMT_YUV420P;
+const DEFAULT_PIXFMT: AVPixelFormat = AVPixelFormat::AV_PIX_FMT_NV12;
 pub const DEFAULT_TIME_BASE: [i32; 2] = [1, 30];
 const DEFAULT_GOP: i32 = i32::MAX;
 const DEFAULT_HW_QUALITY: Quality = Quality_Default;
@@ -332,6 +332,8 @@ pub fn check_config_process() {
     use hbb_common::sysinfo::{ProcessExt, System, SystemExt};
 
     std::thread::spawn(move || {
+        // Remove to avoid checking process errors
+        // But when the program is just started, the configuration file has not been updated, and the new connection will read an empty configuration
         HwCodecConfig::remove();
         if let Ok(exe) = std::env::current_exe() {
             if let Some(file_name) = exe.file_name().to_owned() {
@@ -344,9 +346,16 @@ pub fn check_config_process() {
                     }
                 }
                 if let Ok(mut child) = std::process::Command::new(exe).arg(arg).spawn() {
-                    let second = 3;
-                    std::thread::sleep(std::time::Duration::from_secs(second));
-                    // kill: Different platforms have different results
+                    // wait up to 10 seconds
+                    for _ in 0..10 {
+                        std::thread::sleep(std::time::Duration::from_secs(1));
+                        if let Ok(Some(status)) = child.try_wait() {
+                            if status.success() {
+                                HwCodecConfig::refresh();
+                            }
+                            break;
+                        }
+                    }
                     allow_err!(child.kill());
                     std::thread::sleep(std::time::Duration::from_millis(30));
                     match child.try_wait() {