[文件操作] 批处理怎样在文件夹后追加文件夹内视频总时长？

@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
 
set folder=%1
 
pushd %folder%
set/a time=0
for /f "usebackq" %%a in (` dir /b *.mkv `) do (
	for /f "usebackq tokens=2,3 delims=: " %%i in (` "ffprobe.exe %%a 2>&1 | findstr Duration" `) do (
		set /a time+=%%i*60+%%j
	)
)
popd
 
echo ren %folder% %folder%[%time%]
 
pause
exit/bCOPY

@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
 
set folder=%~1
 
set ffPath=D:\Program Files
 
pushd "%folder%"
 
set/a time=0
for /f "usebackq" %%a in (` dir /b *.mkv `) do (
	for /f "usebackq tokens=2,3 delims=: " %%i in (` ""%ffpath%\ffprobe.exe" %%a 2>&1 | findstr Duration" `) do (
		set /a time+=%%i*60+%%j+1
	)
)
echo %time%
 
popd
 
echo ren "%folder%" "%folder%[%time%]"
 
pause
exit/bCOPY

ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 input.mp4
30.024000COPY

@echo off
setlocal enabledelayedexpansion
set folder=%~1
set ffpath=H:\共享影视\Download\FFmpeg\ffmpeg.exe
pushd "%folder%"
for /f "delims=" %%i in ('dir /b /s /a-d *.avi *.mkv *.mp4 *.rmvb *.wmv') do (
    for /f "tokens=2 delims=, " %%a in ('%ffpath% -i "%%i" 2^>^&1 ^| find "Duration:"') do set "str=%%a"
    set str=!str:~0,-3!
    for /f "tokens=1-3 delims=:" %%x in ("!str!") do (
        set "hh=%%x"
        set "mm=%%y"
        set "ss=%%z"
        set /a minutes=1!hh!*60-6000
        set /a minutes+=1!mm!-100
        if !ss! neq 0 (set /a minutes+=1)
    )
   set /a  Totalduration+=!minutes!  
)
popd
echo ren "%~1" "%~n1【!Totalduration!】"
pauseCOPY

@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
 
set folder=%~1
 
set ffPath=D:\Program Files
 
pushd "%folder%"
 
set/a time=0
for /f "usebackq tokens=* delims=" %%a in (` dir /b *.mkv `) do (
	for /f "usebackq tokens=2,3 delims=: " %%i in (` ""%ffpath%\ffprobe.exe" "%%a" 2>&1 | findstr Duration" `) do (
		set /a time+=%%i*60+%%j+1
	)
)
echo %time%
 
popd
 
echo ren "%folder%" "%folder%[%time%]"
 
pause
exit/bCOPY