diff --git a/src/ccextractor.c b/src/ccextractor.c
index 4bcfadad..5c882570 100644
--- a/src/ccextractor.c
+++ b/src/ccextractor.c
@@ -50,7 +50,7 @@ int main(int argc, char *argv[])
 	ret = parse_parameters (&ccx_options, argc, argv);
 	if (ret == EXIT_NO_INPUT_FILES)
 	{
-		usage ();
+		print_usage ();
 		fatal (EXIT_NO_INPUT_FILES, "(This help screen was shown because there were no input files)\n");
 	}
 	else if (ret == EXIT_WITH_HELP)
diff --git a/src/lib_ccx/lib_ccx.h b/src/lib_ccx/lib_ccx.h
index 7c2f162d..27fee77d 100644
--- a/src/lib_ccx/lib_ccx.h
+++ b/src/lib_ccx/lib_ccx.h
@@ -151,7 +151,7 @@ void dinit_libraries( struct lib_ccx_ctx **ctx);
 
 //params.c
 int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[]);
-void usage (void);
+void print_usage (void);
 int detect_input_file_overwrite(struct lib_ccx_ctx *ctx, const char *output_filename);
 int atoi_hex (char *s);
 int stringztoms (const char *s, struct ccx_boundary_time *bt);
diff --git a/src/lib_ccx/params.c b/src/lib_ccx/params.c
index 68dce7f0..1ff4b27a 100644
--- a/src/lib_ccx/params.c
+++ b/src/lib_ccx/params.c
@@ -249,7 +249,7 @@ void set_input_format (struct ccx_s_options *opt, const char *format)
 	{
 		opt->demux_cfg.auto_stream = CCX_SM_TRANSPORT;
 		opt->demux_cfg.m2ts = 0;
-	}	
+	}
 	else if (strcmp(format, "m2ts") == 0)
 	{
 		opt->demux_cfg.auto_stream = CCX_SM_TRANSPORT;
@@ -275,7 +275,7 @@ void set_input_format (struct ccx_s_options *opt, const char *format)
 		fatal (EXIT_MALFORMED_PARAMETER, "Unknown input file format: %s\n", format);
 }
 
-void usage (void)
+void print_usage (void)
 {
 	mprint ("Originally based on McPoodle's tools. Check his page for lots of information\n");
 	mprint ("on closed captions technical details.\n");
@@ -555,7 +555,7 @@ void usage (void)
 	mprint (" -nobi -nobufferinput: Disables input buffering.\n");
 	mprint (" -bs --buffersize val: Specify a size for reading, in bytes (suffix with K or\n");
 	mprint ("                       or M for kilobytes and megabytes). Default is 16M.\n");
-	mprint ("                 -koc: keep-output-close. If used then CCExtractor will close\n"); 
+	mprint ("                 -koc: keep-output-close. If used then CCExtractor will close\n");
 	mprint ("                       the output file after writing each subtitle frame and\n");
 	mprint ("                       attempt to create it again when needed.\n");
 	mprint ("     -ff --forceflush: Flush the file buffer whenever content is written.\n");
@@ -983,7 +983,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 	{
 		if (!strcmp (argv[i],"--help") || !strcmp(argv[i], "-h"))
 		{
-			usage();
+			print_usage();
 			return EXIT_WITH_HELP;
 		}
 		if (!strcmp(argv[i], "--version"))
@@ -1016,7 +1016,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 			}
 			continue;
 		}
-		
+
 #ifdef ENABLE_HARDSUBX
 		// Parse -hardsubx and related parameters
 		if (strcmp(argv[i], "-hardsubx")==0)
@@ -1239,8 +1239,8 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 		}
 		if (strcmp(argv[i], "-sem") == 0){
 			opt->enc_cfg.with_semaphore = 1;
-			continue;		
-		}	
+			continue;
+		}
 		if (strcmp (argv[i],"-nots")==0 ||
 				strcmp (argv[i],"--notypesetting")==0)
 		{
@@ -1522,7 +1522,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 			opt->enc_cfg.splitbysentence = 1;
 			continue;
 		}
-		 
+
 		if ((strcmp (argv[i],"--capfile")==0 ||
 					strcmp (argv[i],"-caf")==0)
 				&& i<argc-1)
@@ -1898,7 +1898,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 			}
 			continue;
 		}
-		
+
 		if (strcmp (argv[i],"-xmltvliveinterval")==0)
 		{
 			if (i==argc-1 // Means no following argument
@@ -1911,7 +1911,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 			}
 			continue;
 		}
-		
+
 		if (strcmp (argv[i],"-xmltvoutputinterval")==0)
 		{
 			if (i==argc-1 // Means no following argument
@@ -1930,7 +1930,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 			i++;
 			continue;
 		}
-		
+
 		if (strcmp (argv[i],"-unixts")==0 && i<argc-1)
 		{
 			uint64_t t = 0;
@@ -2194,7 +2194,7 @@ int parse_parameters (struct ccx_s_options *opt, int argc, char *argv[])
 	{
 		print_error(opt->gui_mode_reports, "You can't extract both fields to stdout at the same time in broadcast mode.");
 		return EXIT_INCOMPATIBLE_PARAMETERS;
-	}		
+	}
 	if (opt->write_format == CCX_OF_SPUPNG && opt->cc_to_stdout)
 	{
 		print_error(opt->gui_mode_reports, "You cannot use -out=spupng with -stdout.");