aha

拼接视频concat filter不能用

3

ffmpeg -i video1.avi -i video2.avi -filter complex “[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]” output_video.avi 由于demo里空格的问题，自己转成数组后调用runFFmpegCmd，返回ffmpeg_parse_options_error错误，请问一下是什么原因？谢谢

使用了反射，如何兼容9.0

I tried it in as, but it outputed a 261B result.mp4 in root directory of sd card, anyone help?