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| private boolean isCompressing;
public static final String LOCAL_PATH = Environment.getExternalStorageDirectory().getAbsolutePath()
+ "/Android/data/com.example.qinius/";
private float percentage;
private long startTime;
private String videoPath;
private static MainActivity activity;
//开始压缩视频
private void startCompressed() {
if (isCompressing) {
return;
}
isCompressing = true;
Log.e("!!!!!!!!!!!!","LOCAL_PATH:" + LOCAL_PATH);
Log.e("!!!!!!!!!!!!","videoPath:" + videoPath);
//PLShortVideoTranscoder初始化，三个参数，第一个context，第二个要压缩文件的路径，第三个视频压缩后输出的路径
PLShortVideoTranscoder mShortVideoTranscoder = new PLShortVideoTranscoder(this, videoPath, LOCAL_PATH + "compress/transcoded.mp4");
MediaMetadataRetriever retr = new MediaMetadataRetriever();
retr.setDataSource(videoPath);
String height = retr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT); // 视频高度
String width = retr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH); // 视频宽度
String rotation = retr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION); // 视频旋转方向
int transcodingBitrateLevel = 3;
startTime = System.currentTimeMillis();
mShortVideoTranscoder.transcode(Integer.parseInt(width), Integer.parseInt(height), getEncodingBitrateLevel(transcodingBitrateLevel), false, new PLVideoSaveListener() {
@Override
public void onSaveVideoSuccess(String s) {
handler.sendEmptyMessage(103);
Log.e("!!!!!!!!!!!!","onSaveVideoSuccess:" + s);
runOnUiThread(new Runnable() {
@Override
public void run() {
ToastUtils.l(activity,"onSaveVideoSuccess======== ");
}
});
}
@Override
public void onSaveVideoFailed(final int errorCode) {
isCompressing = false;
Log.e("!!!!!!!!!!!!", "save failed: " + errorCode);
runOnUiThread(new Runnable() {
@Override
public void run() {
ToastUtils.l(activity,"save failed======== ");
}
});
}
@Override
public void onSaveVideoCanceled() {
handler.sendEmptyMessage(101);
Log.e("!!!!!!!!!!!!", "onSaveVideoCanceled");
}
@Override
public void onProgressUpdate(float percentag) {
percentage = percentag;
handler.sendEmptyMessage(100);
Log.e("!!!!!!!!!!!!", "onProgressUpdate:" + percentage);
}
});
}
Handler handler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
Log.e("!!!!!!!!!!!!", "msg.what:" + msg.what);
switch (msg.what) {
case 100:
// textView.setText("" + percentage);
break;
case 101:
// textView.setText("压缩取消了");
break;
case 102:
break;
case 103:
String compressedFilePath = LOCAL_PATH + "compress/transcoded.mp4";
// tv_endSize.setText("压缩后视频大小:" + getFormatSize(getFileSize(new File(compressedFilePath))));
// int time = (int) ((System.currentTimeMillis() - startTime) / 1000);
// tv_time.setText("压缩用时：" + time + "秒");
// textView.setText("压缩完成");
break;
}
return false;
}
});
/**
* 设置压缩质量
*
* @param position
* @return
*/
private int getEncodingBitrateLevel(int position) {
return ENCODING_BITRATE_LEVEL_ARRAY[position];
}
/**
* 选的越高文件质量越大，质量越好,对应压缩后尺寸更大
*/
public static final int[] ENCODING_BITRATE_LEVEL_ARRAY = {
500 * 1000,
800 * 1000,
1000 * 1000,
1200 * 1000,
1600 * 1000,
2000 * 1000,
2500 * 1000,
4000 * 1000,
8000 * 1000,
};
/**
* 获取指定文件大小
*
* @return
* @throws Exception
*/
private static long getFileSize(File file) {
long size = 0;
try {
if (file.exists()) {
FileInputStream fis = null;
fis = new FileInputStream(file);
size = fis.available();
} else {
file.createNewFile();
Log.e("获取文件大小", "文件不存在!");
}
return size;
} catch (Exception e) {
e.printStackTrace();
}
return size;
}
/**
* 格式化单位
*
* @param size
*/
public String getFormatSize(double size) {
double kiloByte = size / 1024;
if (kiloByte < 1) {
return size + "MB";
}
double megaByte = kiloByte / 1024;
double gigaByte = megaByte / 1024;
if (gigaByte < 1) {
BigDecimal result2 = new BigDecimal(Double.toString(megaByte));
return result2.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "MB";
}
double teraBytes = gigaByte / 1024;
if (teraBytes < 1) {
BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
return result3.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "GB";
}
BigDecimal result4 = new BigDecimal(teraBytes);
return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "TB";
}
/**
* 从相册中选择视频
*/
private void choiceVideo() {
Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, 66);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 66 && resultCode == RESULT_OK && null != data) {
Uri selectedVideo = data.getData();
String[] filePathColumn = {MediaStore.Video.Media.DATA};
Cursor cursor = getContentResolver().query(selectedVideo,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
videoPath = cursor.getString(columnIndex);
cursor.close();
ToastUtils.l(activity, "videoPath:" + videoPath);
}
if (resultCode != Activity.RESULT_OK) {
return;
}
}
|