filter - ffmpeg 将黑色插入视频头/尾

Question

我试图执行标题的问题。ffmpeg -i "${in}" -vf tpad=5,start_duration=5,color=black -af adelay=5s,all=1 "${out}"控制台错误:

Only '-vf tpad=5,start_duration=5,color=black' read, ignoring remaining -vf options: Use ',' to separate filters
Only '-af adelay=5s,all=1' read, ignoring remaining -af options: Use ',' to separate filters


No such filter: 'all'
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #0:1
Conversion failed!

我很难理解这个遗产。
提前致谢。

Answer 1

在将 ffmpeg 命令集成到脚本之前，请务必对其进行测试。使用逗号 (,) 而不是冒号 (:)。利用:

ffmpeg -i "${in}" -vf "tpad=5:start_duration=5:color=black" -af "adelay=5s:all=1" "${out}"