diff --git a/libs/scrap/src/common/codec.rs b/libs/scrap/src/common/codec.rs
index 5a04cfacc..d2c53c7e9 100644
--- a/libs/scrap/src/common/codec.rs
+++ b/libs/scrap/src/common/codec.rs
@@ -267,13 +267,21 @@ impl Encoder {
             .unwrap_or((PreferCodec::Auto.into(), 0));
         let preference = most_frequent.enum_value_or(PreferCodec::Auto);
 
-        #[allow(unused_mut)]
+        // auto: h265 > h264 > vp9/vp8
         let mut auto_codec = CodecFormat::VP9;
-        let mut system = System::new();
-        system.refresh_memory();
-        if vp8_useable && system.total_memory() <= 4 * 1024 * 1024 * 1024 {
-            // 4 Gb
-            auto_codec = CodecFormat::VP8
+        if h264_useable {
+            auto_codec = CodecFormat::H264;
+        }
+        if h265_useable {
+            auto_codec = CodecFormat::H265;
+        }
+        if auto_codec == CodecFormat::VP9 {
+            let mut system = System::new();
+            system.refresh_memory();
+            if vp8_useable && system.total_memory() <= 4 * 1024 * 1024 * 1024 {
+                // 4 Gb
+                auto_codec = CodecFormat::VP8
+            }
         }
 
         *format = match preference {