video - ffmpeg concat 错误找不到合适的输出格式

Question

我正在尝试将 outro 视频批量连接到多个视频。
我只是使用以下命令对其进行测试:ffmpeg -i test.mp4 -i hello.mp4 -filter comp
lex “[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]” -map “[v]” -map “[a]” outpu
t_video.mp4


However I get the following Error:

[NULL @ 04fc2c00] Unable to find a suitable output format for '[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]'
[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]: Invalid argument

Answer 1

更改-filter complex至-filter_complex

用普通的双引号 (") 替换“智能/花哨”引号。