libobs: Fix non-exhaustive switch statements

New video formats introduced for ProRes 4444 encoding have not been
implemented in function calls used for video decoding, which makes the
switch statements non-exhaustive.

This does not functionally change the status quo (decoding ProRes 4444
files could still be broken because libobs does not explicitly handle
the colour format).

libobs/obs-source.c

@@ -1638,6 +1638,11 @@ static inline enum convert_type get_convert_type(enum video_format format,
 
 	case VIDEO_FORMAT_P010:
 		return CONVERT_P010;
+
+	case VIDEO_FORMAT_P216:
+	case VIDEO_FORMAT_P416:
+		/* Unimplemented */
+		break;
 	}
 
 	return CONVERT_NONE;
@@ -2208,6 +2213,11 @@ static const char *select_conversion_technique(enum video_format format,
 		else
 			return "RGB_Limited";
 		break;
+
+	case VIDEO_FORMAT_P216:
+	case VIDEO_FORMAT_P416:
+		/* Unimplemented */
+		break;
 	}
 	return NULL;
 }
@@ -3375,6 +3385,11 @@ static void copy_frame_data(struct obs_source_frame *dst,
 		copy_frame_data_plane(dst, src, 2, dst->height);
 		copy_frame_data_plane(dst, src, 3, dst->height);
 		break;
+
+	case VIDEO_FORMAT_P216:
+	case VIDEO_FORMAT_P416:
+		/* Unimplemented */
+		break;
 	}
 }