diff --git a/libs/scrap/src/common/codec.rs b/libs/scrap/src/common/codec.rs
index d729342d6..9535e9f3a 100644
--- a/libs/scrap/src/common/codec.rs
+++ b/libs/scrap/src/common/codec.rs
@@ -218,7 +218,7 @@ impl Encoder {
     #[inline]
     pub fn current_hw_encoder_name() -> Option<String> {
         #[cfg(feature = "hwcodec")]
-        if check_hwcodec_config() {
+        if enable_hwcodec_option() {
             return HwEncoder::current_name().lock().unwrap().clone();
         } else {
             return None;
@@ -229,7 +229,7 @@ impl Encoder {
 
     pub fn supported_encoding() -> (bool, bool) {
         #[cfg(feature = "hwcodec")]
-        if check_hwcodec_config() {
+        if enable_hwcodec_option() {
             let best = HwEncoder::best();
             (
                 best.h264.as_ref().map_or(false, |c| c.score > 0),
@@ -246,7 +246,7 @@ impl Encoder {
 impl Decoder {
     pub fn video_codec_state(_id: &str) -> VideoCodecState {
         #[cfg(feature = "hwcodec")]
-        if check_hwcodec_config() {
+        if enable_hwcodec_option() {
             let best = HwDecoder::best();
             return VideoCodecState {
                 score_vpx: SCORE_VPX,
@@ -257,7 +257,7 @@ impl Decoder {
             };
         }
         #[cfg(feature = "mediacodec")]
-        if check_hwcodec_config() {
+        if enable_hwcodec_option() {
             let score_h264 = if H264_DECODER_SUPPORT.load(std::sync::atomic::Ordering::SeqCst) {
                 92
             } else {
@@ -287,11 +287,19 @@ impl Decoder {
         Decoder {
             vpx,
             #[cfg(feature = "hwcodec")]
-            hw: HwDecoder::new_decoders(),
+            hw: if enable_hwcodec_option() {
+                HwDecoder::new_decoders()
+            } else {
+                HwDecoders::default()
+            },
             #[cfg(feature = "hwcodec")]
             i420: vec![],
             #[cfg(feature = "mediacodec")]
-            media_codec: MediaCodecDecoder::new_decoders(),
+            media_codec: if enable_hwcodec_option() {
+                MediaCodecDecoder::new_decoders()
+            } else {
+                MediaCodecDecoders::default()
+            },
         }
     }
 
@@ -415,7 +423,7 @@ impl Decoder {
 }
 
 #[cfg(any(feature = "hwcodec", feature = "mediacodec"))]
-fn check_hwcodec_config() -> bool {
+fn enable_hwcodec_option() -> bool {
     if let Some(v) = Config2::get().options.get("enable-hwcodec") {
         return v != "N";
     }
diff --git a/libs/scrap/src/common/hwcodec.rs b/libs/scrap/src/common/hwcodec.rs
index 166f7516c..55c2309b5 100644
--- a/libs/scrap/src/common/hwcodec.rs
+++ b/libs/scrap/src/common/hwcodec.rs
@@ -94,7 +94,7 @@ impl EncoderApi for HwEncoder {
             frames.push(EncodedVideoFrame {
                 data: Bytes::from(frame.data),
                 pts: frame.pts as _,
-                key:frame.key == 1,
+                key: frame.key == 1,
                 ..Default::default()
             });
         }
@@ -175,6 +175,7 @@ pub struct HwDecoder {
     pub info: CodecInfo,
 }
 
+#[derive(Default)]
 pub struct HwDecoders {
     pub h264: Option<HwDecoder>,
     pub h265: Option<HwDecoder>,
@@ -189,22 +190,28 @@ impl HwDecoder {
     }
 
     pub fn new_decoders() -> HwDecoders {
+        flog("enter new_decoders");
         let best = HwDecoder::best();
+        flog(&format!("best:${:?}", best));
         let mut h264: Option<HwDecoder> = None;
         let mut h265: Option<HwDecoder> = None;
         let mut fail = false;
 
         if let Some(info) = best.h264 {
+            flog(&format!("before new h264 codec"));
             h264 = HwDecoder::new(info).ok();
             if h264.is_none() {
                 fail = true;
             }
+            flog(&format!("new h264 codec result:{:}", h264.is_some()));
         }
         if let Some(info) = best.h265 {
+            flog(&format!("before new h265 codec"));
             h265 = HwDecoder::new(info).ok();
             if h265.is_none() {
                 fail = true;
             }
+            flog(&format!("new h265 codec result:{:}", h265.is_some()));
         }
         if fail {
             check_config_process(true);
@@ -321,11 +328,21 @@ pub fn check_config_process(force_reset: bool) {
     }
     if let Ok(exe) = std::env::current_exe() {
         std::thread::spawn(move || {
-            std::process::Command::new(exe)
+            let result = std::process::Command::new(exe)
                 .arg("--check-hwcodec-config")
                 .status()
                 .ok();
+            flog(&format!("check codec process run result:{:?}", result));
             HwCodecConfig::refresh();
         });
     };
 }
+
+pub fn flog(s: &str) {
+    use hbb_common::chrono::prelude::*;
+    use std::io::Write;
+    let mut option = std::fs::OpenOptions::new();
+    if let Ok(mut f) = option.append(true).create(true).open("/tmp/log.txt") {
+        write!(&mut f, "{:?} {}\n", Local::now(), s).ok();
+    }
+}
diff --git a/libs/scrap/src/common/mediacodec.rs b/libs/scrap/src/common/mediacodec.rs
index fa821246c..406baecb5 100644
--- a/libs/scrap/src/common/mediacodec.rs
+++ b/libs/scrap/src/common/mediacodec.rs
@@ -37,6 +37,7 @@ impl Deref for MediaCodecDecoder {
     }
 }
 
+#[derive(Default)]
 pub struct MediaCodecDecoders {
     pub h264: Option<MediaCodecDecoder>,
     pub h265: Option<MediaCodecDecoder>,