diff --git a/export-video.py b/export-video.py
index 7bb039d..3f5b2ea 100755
--- a/export-video.py
+++ b/export-video.py
@@ -91,11 +91,11 @@ def listFile(directory, pattern, recursive):
     return files_list
 
 
-def getFileName(path):
+def get_file_name(path):
     return os.path.splitext(os.path.basename(path))[0]
 
 
-def processArg(sysarg):
+def process_arg(sysarg):
     try:
         opts, args = getopt.getopt(
             sysarg, "hi:o:dp:a:v:2",
@@ -114,7 +114,7 @@ def processArg(sysarg):
         usage()
         sys.exit(2)
     for opt, arg in opts:
-        if opt in ("-h, --help"):
+        if opt in ("-h", "--help"):
             usage()
             sys.exit()
         if opt in ("-o", "--output"):
@@ -185,7 +185,7 @@ if __name__ == "__main__":
     if not exec_ffmpeg:
         print('ffmpeg not found, exiting')
         sys.exit(2)
-    processArg(sys.argv[1:])
+    process_arg(sys.argv[1:])
     if not params["file_input"]:
         print("you must specify a file / directory input")
         sys.exit(2)
@@ -201,14 +201,14 @@ if __name__ == "__main__":
             )
         for f in video_files:
             logging.info('batch encode | file %s to %s', f)
-            encode_h264(f, params["file_output"] + getFileName(f))
+            encode_h264(f, params["file_output"] + get_file_name(f))
     else:
         if os.path.isfile(params["file_input"]):
             if not params["file_output"]:
-                params["file_output"] = getFileName(params["file_input"])
+                params["file_output"] = get_file_name(params["file_input"])
             else:
                 if(os.path.isdir(params["file_output"])):
-                    params["file_input"] += getFileName(params["file_input"])
+                    params["file_input"] += get_file_name(params["file_input"])
             logging.info('%s is a file', params["file_input"])
             encode_h264(params["file_input"], params["file_output"])
         else: