diff --git a/libs/hbb_common/protos/message.proto b/libs/hbb_common/protos/message.proto
index 61f739343..273e7a6c5 100644
--- a/libs/hbb_common/protos/message.proto
+++ b/libs/hbb_common/protos/message.proto
@@ -471,7 +471,7 @@ message OptionMessage {
   BoolOption show_remote_cursor = 3;
   BoolOption privacy_mode = 4;
   BoolOption block_input = 5;
-  uint32 custom_image_quality = 6;
+  int32 custom_image_quality = 6;
   BoolOption disable_audio = 7;
   BoolOption disable_clipboard = 8;
   BoolOption enable_file_transfer = 9;
diff --git a/libs/scrap/src/common/dxgi.rs b/libs/scrap/src/common/dxgi.rs
index c0b4130bb..1a8c39885 100644
--- a/libs/scrap/src/common/dxgi.rs
+++ b/libs/scrap/src/common/dxgi.rs
@@ -1,5 +1,6 @@
 use crate::dxgi;
 use std::io::ErrorKind::{NotFound, TimedOut, WouldBlock};
+use std::time::Duration;
 use std::{io, ops};
 
 pub struct Capturer {
@@ -40,8 +41,8 @@ impl Capturer {
         self.height
     }
 
-    pub fn frame<'a>(&'a mut self, timeout_ms: u32) -> io::Result<Frame<'a>> {
-        match self.inner.frame(timeout_ms) {
+    pub fn frame<'a>(&'a mut self, timeout_ms: Duration) -> io::Result<Frame<'a>> {
+        match self.inner.frame(timeout_ms.as_millis() as _) {
             Ok(frame) => Ok(Frame(frame)),
             Err(ref error) if error.kind() == TimedOut => Err(WouldBlock.into()),
             Err(error) => Err(error),
@@ -135,7 +136,7 @@ impl CapturerMag {
     pub fn get_rect(&self) -> ((i32, i32), usize, usize) {
         self.inner.get_rect()
     }
-    pub fn frame<'a>(&'a mut self, _timeout_ms: u32) -> io::Result<Frame<'a>> {
+    pub fn frame<'a>(&'a mut self, _timeout_ms: Duration) -> io::Result<Frame<'a>> {
         self.inner.frame(&mut self.data)?;
         Ok(Frame(&self.data))
     }
diff --git a/libs/scrap/src/common/hwcodec.rs b/libs/scrap/src/common/hwcodec.rs
index ec4e7082c..076304067 100644
--- a/libs/scrap/src/common/hwcodec.rs
+++ b/libs/scrap/src/common/hwcodec.rs
@@ -140,6 +140,10 @@ impl EncoderApi for HwEncoder {
     fn use_yuv(&self) -> bool {
         false
     }
+
+    fn set_bitrate(&mut self, bitrate: u32) -> ResultType<()> {
+        todo!()
+    }
 }
 
 impl HwEncoder {
diff --git a/src/client.rs b/src/client.rs
index adeabda66..ca5352ae4 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -1005,7 +1005,7 @@ impl LoginConfigHandler {
         msg_out
     }
 
-    pub fn save_custom_image_quality(&mut self, custom_image_quality: u32) -> Message {
+    pub fn save_custom_image_quality(&mut self, custom_image_quality: i32) -> Message {
         let mut misc = Misc::new();
         misc.set_option(OptionMessage {
             custom_image_quality,
diff --git a/src/server/connection.rs b/src/server/connection.rs
index 8f04841c2..77d41d4e0 100644
--- a/src/server/connection.rs
+++ b/src/server/connection.rs
@@ -1117,7 +1117,7 @@ impl Connection {
             let mut image_quality = None;
             if let ImageQuality::NotSet = q {
                 if o.custom_image_quality > 0 {
-                    image_quality = Some(o.custom_image_quality);
+                    image_quality = Some(o.custom_image_quality as _);
                 }
             } else {
                 image_quality = Some(q.value() as _)
diff --git a/src/server/video_service.rs b/src/server/video_service.rs
index fa0b77fc7..8113ffee3 100644
--- a/src/server/video_service.rs
+++ b/src/server/video_service.rs
@@ -385,7 +385,7 @@ impl TraitCapturer for Capturer {
 
 #[cfg(windows)]
 impl TraitCapturer for scrap::CapturerMag {
-    fn frame<'a>(&'a mut self, _timeout_ms: u32) -> Result<Frame<'a>> {
+    fn frame<'a>(&'a mut self, _timeout_ms: Duration) -> Result<Frame<'a>> {
         self.frame(_timeout_ms)
     }
 
diff --git a/src/ui/remote.rs b/src/ui/remote.rs
index 1abd4eb2a..22ae5f505 100644
--- a/src/ui/remote.rs
+++ b/src/ui/remote.rs
@@ -569,7 +569,7 @@ impl Handler {
             .lc
             .write()
             .unwrap()
-            .save_custom_image_quality(custom_image_quality as u32);
+            .save_custom_image_quality(custom_image_quality);
         self.send(Data::Message(msg));
     }