clean up code.

1 files changed, 4 insertions, 6 deletions

diff --git a/src/overlap.c b/src/overlap.c
index 571e5b8..19134c3 100644
--- a/src/overlap.c
+++ b/src/overlap.c
@@ -88,12 +88,11 @@ main(int argc, char **argv)
 	struct video_decode *first_vd;
 	struct video_decode *second_vd;
 	struct video_frame *cur_frame = NULL, *last_frame = NULL;
-//	struct video_frame last_frames[5] = {0};
 	int ret, ch;
 	int diff_flag = 0;
 	int64_t timestamp = 0;
-	int64_t duration = 60 * 1000;	/* duration for searching min_diff */
-					/* 60 sec * 1000 msec = 1 min      */
+	int64_t duration = 60 * 1000;	/* duration for searching min_diff    */
+					/* default 1 min = 60 sec * 1000 msec */
 	int64_t min_diff_time = 0;	/* dts at overlaping frame */
 	double min_diff, diff = 0.0;
 
@@ -116,9 +115,6 @@ main(int argc, char **argv)
 	if (argc < 2)
 		usage();
 
-//	if (argc == 2 && strtol(argv[1], NULL, 10) > 0)
-//		timestamp = strtol(argv[1], NULL, 10);
-
 	ret = video_decode_init(&first_vd, argv[0], timestamp);
 	if (ret < 0)
 		return -ret;
@@ -128,6 +124,8 @@ main(int argc, char **argv)
 	for (int i = 0; video_decode_get_frame(first_vd, &last_frame) > 0; ++i);
 
 	ret = video_decode_init(&second_vd, argv[1], timestamp);
+	if (ret < 0)
+		return -ret;
 
 	for (int i = 0; video_decode_get_frame(second_vd, &cur_frame) > 0; ++i){
 		diff = frame_diff(last_frame, cur_frame);