diff --git a/util/ffmpeg.go b/util/ffmpeg.go
index e2b311a..629b4dd 100644
--- a/util/ffmpeg.go
+++ b/util/ffmpeg.go
@@ -331,13 +331,12 @@ func QuickVideoCut(ctx context.Context, inputFile string, offset, length float64
 		FfmpegExec,
 		"-hide_banner",
 		"-y",
+		"-ss", strconv.FormatFloat(offset, 'f', 2, 64),
 		"-i", inputFile,
 		"-f", "lavfi", "-i", "anullsrc=channel_layout=mono:sample_rate=44100",
 		"-c:v", "copy",
 		"-c:a", "aac",
 		"-shortest",
-		"-reset_timestamps", "1",
-		"-ss", strconv.FormatFloat(offset, 'f', 2, 64),
 		"-t", strconv.FormatFloat(length, 'f', 2, 64),
 		"-fflags", "+genpts",
 		"-f", "mp4",
@@ -376,13 +375,14 @@ func QuickConcatVideoCut(ctx context.Context, inputFiles []dto.File, offset, len
 		"-y",
 		"-f", "concat",
 		"-safe", "0",
+		"-ss", strconv.FormatFloat(offset, 'f', 2, 64),
 		"-i", tmpFile,
 		"-f", "lavfi", "-i", "anullsrc=channel_layout=mono:sample_rate=44100",
 		"-c:v", "copy",
 		"-c:a", "aac",
 		"-shortest",
-		"-ss", strconv.FormatFloat(offset, 'f', 2, 64),
 		"-t", strconv.FormatFloat(length, 'f', 2, 64),
+		"-fflags", "+genpts",
 		"-f", "mp4",
 		outputFile,
 	}