On video accelerator devices using wpe 2.38, when progressive video content (e.g. CNN ) is played, it is seen that the video is not smooth (frequent freezes are seen) for the initial few seconds after which video plays smoothly. This issue is not seen with WPE 2.22 version though.

The below workaround is currently undertaken to fix the issue. But it has side effect like video plays in slow speed when the network bandwidth is limited.

--- a/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp
+++ b/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp
@@ -2132,7 +2132,7 @@ void MediaPlayerPrivateGStreamer::updateBufferingStatus(GstBufferingMode mode, d
m_fillTimer.stop();

+// Force buffering flag to be always false so we don't enter buffering state at all
+m_isBuffering = false;
m_bufferingPercentage = percentage;
switch (mode) {

Sample video is attached.
https://github.com/WebPlatformForEmbedded/WPEWebKit/assets/156415435/373b930e-a06a-44d1-a04b-d83cf52c8360