AsyncTask doInBackground not calling

[inxandroid]

//PACKAGE package com.github.hiteshsondhi88.libffmpeg; //FILE NAME public class FFmpeg implements FFmpegInterface //CODE IN WHIC ISSUE FACING

ffmpegExecuteAsyncTask = new FFmpegExecuteAsyncTask(command , timeout, ffmpegExecuteResponseHandler);
            ffmpegExecuteAsyncTask.execute();

//--------------------------------------------------------------------------------------------------------- Why you have not used ask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR) instead of ask.execute() ?