correct ffmpeg command

app/api/routes/node_storage.py

@@ -223,6 +223,7 @@ async def s_api_v1_storage_get(request, file_hash=None):
                             "-i", file_path,
                             "-t", str(seconds_limit),
                             "-c:v", "libx264",
+                            "-pix_fmt", "yuv420p",  # Set pixel format for compatibility
                             "-c:a", "aac",
                             "-movflags", "+faststart",
                             tempfile_path
@@ -234,6 +235,7 @@ async def s_api_v1_storage_get(request, file_hash=None):
                             "-y",
                             "-i", file_path,
                             "-c:v", "libx264",
+                            "-pix_fmt", "yuv420p",  # Set pixel format for compatibility
                             "-c:a", "aac",
                             "-movflags", "+faststart",
                             tempfile_path