FFMPEG command can not generate output file

[mansiJspaceo]

Hello

Successfully i build all arms Thank you for you Response.
also add all files in JNILibs.
Now When i Run Command in Android It's can not gives any error also not generating output
video for this.

Can you please give Idea how can i run command successfully get output

`private fun ffmpegTest() {
object : Thread() {
override fun run() {
val startTime = System.currentTimeMillis()
val input = Environment.getExternalStorageDirectory().path + File.separator +
"DCIM" + File.separator + "test.mp3"
val output = Environment.getExternalStorageDirectory().path + File.separator +
"DCIM" + File.separator + "output.mp3"

            val cmd = "ffmpeg -y -i %s -vn -acodec copy -ss %s -t %s %s"
            val result = String.format(cmd, input, "00:00:30", "00:00:40", output)

            command.runCmd(result.split(" ".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray())
            Log.d("FFmpegTest", "run: 耗时：" + (System.currentTimeMillis() - startTime))
        }
    }.start()


}`

This is my Code