@echo off
REM 设置片头视频文件（请确保片头、片尾、正片都是分辨率相同的视频文件）
set "FilePrefix=Resource\PianTou.mp4"
REM 设置片尾视频文件（请确保片头、片尾、正片都是分辨率相同的视频文件）
set "FileSuffix=Resource\PianWei.mp4"
REM 合并之后的视频放在哪个文件夹
set "FolderOut=Result"

cd /d "%~dp0"
set "FileList=MergeVideo.txt"
md "%FolderOut%" 2>nul
echo [1] 添加片头
echo [2] 添加片尾
echo [3] 添加片头和片尾
choice /c 123 /m "请输入数字："
if %errorlevel% == 1 (
    for /f "delims=" %%i in ('dir /b /a-d *.mp4') do (
        > "%FileList%" echo file '%FilePrefix%'
        >>"%FileList%" echo file '%%i'
        ffmpeg.exe -f concat -safe 0 -i "%FileList%" -c copy "%FolderOut%\%%i"
    )
) else if %errorlevel% == 2 (
    for /f "delims=" %%i in ('dir /b /a-d *.mp4') do (
        > "%FileList%" echo file '%%i'
        >>"%FileList%" echo file '%FileSuffix%'
        ffmpeg.exe -f concat -safe 0 -i "%FileList%" -c copy "%FolderOut%\%%i"
    )
) else if %errorlevel% == 3 (
    for /f "delims=" %%i in ('dir /b /a-d *.mp4') do (
        > "%FileList%" echo file '%FilePrefix%'
        >>"%FileList%" echo file '%%i'
        >>"%FileList%" echo file '%FileSuffix%'
        ffmpeg.exe  -hide_banner -loglevel info  -f concat -safe 0 -i "%FileList%" -c copy "%FolderOut%\%%i"
    )
)