mediaMetadataRetriever.setDataSource throws illegal argument exception

获取视频中某一帧的图片抛出参数异常

先贴上解决方法

public static Bitmap retriveVideoFrameFromVideo(String videoPath)
                throws Throwable
        {
            Bitmap bitmap = null;
            MediaMetadataRetriever mediaMetadataRetriever = null;
            try
            {
                mediaMetadataRetriever = new MediaMetadataRetriever();
                if (Build.VERSION.SDK_INT >= 14)
                    mediaMetadataRetriever.setDataSource(videoPath, new HashMap());
                    else
                        mediaMetadataRetriever.setDataSource(videoPath);
             //   mediaMetadataRetriever.setDataSource(videoPath);
                bitmap = mediaMetadataRetriever.getFrameAtTime();
            }
            catch (Exception e)
            {
                e.printStackTrace();
                throw new Throwable(
                        "Exception in retriveVideoFrameFromVideo(String videoPath)"
                                + e.getMessage());

            }
            finally
            {
                if (mediaMetadataRetriever != null)
                {
                    mediaMetadataRetriever.release();
                }
            }
            return bitmap;
        }

可知根据安卓版本的不同采用不用的方法。api大于14的时候要传

new HashMap()