diff --git a/src/media/media_encoder.cpp b/src/media/media_encoder.cpp
index ccbae447efd747f06fa16a62ef80eb17abd51a96..506f5dc8aee14e34a3c49056a34e86134784efb2 100644
--- a/src/media/media_encoder.cpp
+++ b/src/media/media_encoder.cpp
@@ -273,11 +273,6 @@ int
 MediaEncoder::encode(VideoFrame& input, bool is_keyframe,
                      int64_t frame_number)
 {
-    /* Prepare a frame suitable to our encoder frame format,
-     * keeping also the input aspect ratio.
-     */
-    yuv422_clear_to_black(scaledFrame_); // to fill blank space left by the "keep aspect"
-
     scaler_.scale_with_aspect(input, scaledFrame_);
 
     auto frame = scaledFrame_.pointer();
diff --git a/src/media/video/video_mixer.cpp b/src/media/video/video_mixer.cpp
index 654a06f780d074826b13ebfc7e8b2f1990a4bbf1..85f6cbe790fde2abfb42f8ef69e3e3b6d44278cd 100644
--- a/src/media/video/video_mixer.cpp
+++ b/src/media/video/video_mixer.cpp
@@ -189,8 +189,6 @@ VideoMixer::setDimensions(int width, int height)
 
     // cleanup the previous frame to have a nice copy in rendering method
     std::shared_ptr<VideoFrame> previous_p(obtainLastFrame());
-    if (previous_p)
-        yuv422_clear_to_black(*previous_p);
 
     start_sink();
 }