android - 如何使用 FFMPEG android 修剪视频？

Question

我试过下面的命令但出错了

String[] cmd = new String[14];
            cmd[0] = "-y";          
            cmd[1] = "-ss"; 
            cmd[2] = ""+videoPlayerState.getStart(); 
            cmd[3] = "-i";
            cmd[4] = inputFileName;
            cmd[5] = "-to";
            cmd[6] = ""+videoPlayerState.getDuration();
            cmd[7] = "-async";
            cmd[8] = "1";
            cmd[9] = "-strict";
            cmd[10] = "-2";
            cmd[11] = "-c";
            cmd[12] = "copy";
            cmd[13] = path + "/" + filename;

无法为输出文件 #0 写入标头（编解码器参数不正确？）：参数无效

[mp4 @ 0xb8ce3a60] 在流 #1 中找不到编解码器 amr_nb 的标记，容器中当前不支持编解码器