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@echo off
setlocal enabledelayedexpansion
REM 获取wav配音时长
for %%I in (*.wav) do (
for /f %%A in ('ffprobe -v error -show_entries format^=duration -of default^=noprint_wrappers^=1:nokey^=1 "%%I"') do (
set "wav_duration=%%A"
)
)
REM 获取视频时长
for %%J in (*.mp4) do (
for /f %%B in ('ffprobe -v error -show_entries format^=duration -of default^=noprint_wrappers^=1:nokey^=1 "%%J"') do (
set "video_duration=%%B"
)
)
REM 计算需要拼接的视频时长
set /a target_duration=wav_duration+5
REM 复制并拼接视频
for %%K in (*.mp4) do (
ffmpeg -i "concat:%%K|%%K" -c copy -t !target_duration! output1.mp4
)
endlocal

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@echo off
cd /d "%~dp0"
for %%a in (wav mp4) do (
for %%i in (*.%%a) do (
for /f "delims=" %%j in ('ffprobe -v error -show_entries format^=duration -of default^=noprint_wrappers^=1:nokey^=1 "%%i"') do (
if not defined target_duration (
for /f "delims=" %%k in ('powershell -c "%%j+5"') do (
set target_duration=%%k
)
) else (
set video_duration=%%j
)
)
)
)
for /f "tokens=1 delims=." %%a in ('powershell -c "%target_duration% / %video_duration% + 1"') do (
for %%b in (*.mp4) do (
(for /l %%l in (1,1,%%a) do (
echo file '%%~fb'
))>x.txt
)
)
ffmpeg -f concat -safe 0 -i x.txt -t %target_duration% -c copy output1.mp4
del x.txt
pause

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ffmpeg version 6.0-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
libavutil 58. 2.100 / 58. 2.100
libavcodec 60. 3.100 / 60. 3.100
libavformat 60. 3.100 / 60. 3.100
libavdevice 60. 1.100 / 60. 1.100
libavfilter 9. 3.100 / 9. 3.100
libswscale 7. 1.100 / 7. 1.100
libswresample 4. 10.100 / 4. 10.100
libpostproc 57. 1.100 / 57. 1.100
请按任意键继续. . .

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