[英]ffmpeg concat batch loop with text file
I'm trying to batch a concat loop for a series of avi files where I need to add to each AVI a preroll and postroll movie. 我正在尝试为一系列avi文件批处理一个concat循环,在该循环中我需要向每个AVI添加一个前卷和后卷电影。
Here's what I've tried: 这是我尝试过的:
_input.txt
file: _input.txt
文件:
file '3D_preroll.avi'
file '%%a'
file '3D_postroll.avi'
concat.bat
file: concat.bat
文件:
for %%a in ("*.avi") do ffmpeg -f concat -i _input.txt -c:v libx264 -b:v 1700k -minrate 1500k -maxrate 1900k -bufsize 1900k -deinterlace -acodec libvo_aacenc -ac 2 -ar 48000 -ab 92k "%%a"_432p.mp4
pause
Unfortunately, I get the following error message before FFMPEG crashes: Impossible to open '%%a' 不幸的是,在FFMPEG崩溃之前,我收到以下错误消息:无法打开'%% a'
What am I doing wrong? 我究竟做错了什么?
Thank you :) 谢谢 :)
This might work for you: 这可能对您有用:
@ECHO OFF &SETLOCAL
set "ConcatScript=_input.txt"
for %%a in (*.avi) do (
(echo file '3D_preroll.avi'
echo file '%%~a'
echo file '3D_postroll.avi'
)>"%ConcatScript%"
ffmpeg -f concat -i "%ConcatScript%" -c:v libx264 -b:v 1700k -minrate 1500k -maxrate 1900k -bufsize 1900k -deinterlace -acodec libvo_aacenc -ac 2 -ar 48000 -ab 92k "%%~a_432p.mp4"
)
pause
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