private void execProcess(String[] cmds) {
        ProcessBuilder pb = new ProcessBuilder(cmds);
        pb.redirectErrorStream(true);
        Process process = null;

        try {
            process = pb.start();
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null)
                Log.i(TAG, line);
        } catch (IOException e) {
            Log.e(TAG, "execProcess()");
        } finally {
            if (process != null)
                process.destroy();
        }

    }
/**
 * http://ffmpeg.org/trac/ffmpeg/wiki/Create%20a%20video%20slideshow%20from%20images
 */
    public void convertImages2Video() {
        String ffmpegBin = new File(fileBinDir, "ffmpeg").getAbsolutePath();
        final String videoFile = ImageUtils.getMirrorsDir().getAbsolutePath() + File.separator + "mVideoDir.mp4";
        String[] ffmpegCommand = { ffmpegBin, "-f", "image2", "-i", "img%03d.png", "-vcodec", "libx264", videoFile };
    //  String[] ffmpegCommand = { ffmpegBin };
        execProcess(ffmpegCommand);

    }