Question

I want to use FFMPEG via COMMAND LINE in my android application.For this purpose:

1. I have cross-compiled the ffmpeg lib and got the libffmpeg.so
2. I have stored libffmpeg.so and the ffmpeg exectable in files directory of the my project.

This is the code i am using:

public class FFMPEGActivity extends Activity {

Process p;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

        String[] cmd =new String[4];
    cmd[0]="/data/data/com.example.ffmpegnew/files/libffmpeg";
    cmd[1]="-i";
    cmd[2]="mnt/sdcard/music/baba.mp4";
    cmd[3]="mnt/sdcard/music/outfile.mp4";

    p = Runtime.getRuntime().exec(cmd,null, new File("/data/data/com.example.ffmpegnew/files"));

    }
    catch(Exception e)
    {
        System.out.println("exception"+e);
    }

}

}

This is the exception i am getting:

09-17 13:47:01.679: I/System.out(3752): exceptionjava.io.IOException: Error running exec(). Command: [/data/data/com.example.ffmpegnew/files/libffmpeg.so, -i, mnt/sdcard/music/baba.mp4, mnt/sdcard/music/outfile.mp4] Working Directory: /data/data/com.example.ffmpegnew/files Environment: null

Please tell me how to solve this problem.Thanks in advance.

Answer 1

I think this won’t work, unless you somehow manage to compile ffmpeg executable, place it somewhere in the file system , then access it through your native layer. Normally, though, they use libffmpeg API in android such as in Dolphin Player