iOS Swift移动版FFMpeg表示初始化复杂过滤器时出错.无效参数

Question

我在iOS Swift 中运行以下FFmpeg命令

-i 'record_merge.mp4' -i 'text_0.png' -filter_complex "[0:v][1:v] overlay=208:438:enable='between(t,0.0,5.5316668)';" -c:a copy 'texted_video.mp4'

FFmpeg称

没有这样的筛选器："初始化复杂筛选器时出错。参数无效

我的FFmpeg命令出了什么问题？

Answer 1

问题出在'；'在CCD_ 1参数的末尾。命令应该是

-i 'record_merge.mp4' -i 'text_0.png' -filter_complex "[0:v][1:v] overlay=208:438:enable='between(t,0.0,5.5316668)'" -c:a copy 'texted_video.mp4'

'between(t,0.0,5.5316668)';"->'between(t,0.0,5.5316668)'"