Add files via upload

Fix filename for custom naming.

gifconv.bat

@@ -1,15 +1,15 @@
 @ECHO OFF
 REM By: MDHEXT, Nabi KaramAliZadeh <[email protected]>
 REM Description: Video to GIF converter
-REM Version: 4.6
+REM Version: 4.7
 REM Url: https://github.com/MDHEXT/video2gif, forked from https://github.com/NabiKAZ/video2gif
 REM License: The MIT License (MIT)
 
 SETLOCAL ENABLEDELAYEDEXPANSION
 SET input="%~1"
 SET vid="%~dpnx1"
 SET output="%~dpn1.gif"
-SET FILEPATH="%~dp1"
+SET FILEPATH=%~dp1
 
 SET "scale="
 SET "fps="
@@ -26,7 +26,7 @@ GOTO :help_check_1
 
 :help_message
 ECHO -------------------------------------------------------------------------------------------------------------
-ECHO [96mVideo to GIF converter v4.6 ^(C^) 2017-2021, MDHEXT ^&^ Nabi KaramAliZadeh ^<nabikaz@gmail.com^>[0m
+ECHO [96mVideo to GIF converter v4.7 ^(C^) 2017-2021, MDHEXT ^&^ Nabi KaramAliZadeh ^<nabikaz@gmail.com^>[0m
 ECHO You can download this fork from here: https://github.com/MDHEXT/video2gif
 ECHO you can download the original release here: https://github.com/NabiKAZ/video2gif
 ECHO This tool uses ffmpeg, you can download that here: https://www.ffmpeg.org/download.html#build-windows
@@ -93,7 +93,7 @@ IF NOT "%~1" =="" (
 	IF "%~1" =="-m" SET "mode=%~2" & SHIFT
 	IF "%~1" =="-d" SET "dither=%~2" & SHIFT
 	IF "%~1" =="-b" SET "bayerscale=%~2" & SHIFT
-	IF "%~1" =="-o" SET "output=%FILEPATH%%~2" & SHIFT
+	IF "%~1" =="-o" SET "output=%FILEPATH%%~nx2" & SHIFT
 	IF "%~1" =="-s" SET "start_time=%~2" & SHIFT
 	IF "%~1" =="-e" SET "duration=%~2" & SHIFT
 	IF "%~1" =="-c" SET "colormax=%~2" & SHIFT