Minor tweaks

Added docstring, removed whitespace

Co-authored-by: Copilot <[email protected]>

Author: codeSamuraii

src/native/src/frame_extractor.mm

@@ -225,7 +225,6 @@ void copyFrameData(CVImageBufferRef imageBuffer, uint8_t* dst) {
         if (bytesPerRow == data_width) {
             memcpy(dst, src, data_size);
         } else {
-
             for (int y = 0; y < cachedHeight; y++) {
                 memcpy(dst + y * data_width,
                        src + y * bytesPerRow,

tests/test_viteo.py

@@ -138,6 +138,7 @@ def test_run_to_end(sample_video):
 
 
 def test_last_frame_is_none(sample_video):
+    """Test that after all frames are read, the next frame is None and the frame count matches total_frames."""
     path = sample_video["path"]
     if not path.exists():
         pytest.skip(f"Test video not found: {path}")