diff --git a/media/sfplugin/CCodecBufferChannel.cpp b/media/sfplugin/CCodecBufferChannel.cpp
index 585360a..7d78f99 100644
--- a/media/sfplugin/CCodecBufferChannel.cpp
+++ b/media/sfplugin/CCodecBufferChannel.cpp
@@ -1405,7 +1405,7 @@
             prevInput + static_cast<int>(numDiscardedInputBuffers),
             component.load(std::memory_order_relaxed),
             output.load(std::memory_order_relaxed));
-    return prevInput + numDiscardedInputBuffers;
+    return prevInput + static_cast<int>(numDiscardedInputBuffers);
 }
 
 int CCodecBufferChannel::PipelineCapacity::freeComponentSlot(