編輯:關於Android編程
最近因為項目需求 ,需要播放網絡視頻 ,於是乎 研究了一番 ,說說我遇到的那些坑
現在市面上有幾個比較主流好用的第三方框架
Vitamio ( 體積比較大,有商業化風險 github:https://github.com/yixia/VitamioBundle/) ijkplayer(B站下開源的框架 體積大 配置環境比較麻煩 github:https://github.com/Bilibili/ijkplayer ) PLDroidPlayer(七牛根據ijkplayer二次開發的 定制簡單 github:https://github.com/pili-engineering/PLDroidPlayer)當然還有很多別的視頻播放框架 因為我只找到這幾個= =!
因為項目比較急,所以我用的比較簡單的 PLDroidPlayer
首先把需要的jar包和jni文件拷到你的項目中
這個裡面有很多控件,你們可以根據自己的需求來用指定的控件,我用的是PLVideoTextureView
... prompt'''
然後findviewbyid找到它
public class PLVideoTextureActivity extends AppCompatActivity {
private MediaController mMediaController;
private PLVideoTextureView mVideoView;
private Toast mToast = null;
private String mVideoPath = null;
private int mRotation = 0;
private int mDisplayAspectRatio = PLVideoTextureView.ASPECT_RATIO_FIT_PARENT; //default
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(R.layout.activity_pl_video_texture);
mVideoView = (PLVideoTextureView) findViewById(R.id.VideoView);
View loadingView = findViewById(R.id.LoadingView);
mVideoView.setBufferingIndicator(loadingView);
mVideoPath = getIntent().getStringExtra("videoPath");
// If you want to fix display orientation such as landscape, you can use the code show as follow
//
// if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
// mVideoView.setPreviewOrientation(0);
// }
// else if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
// mVideoView.setPreviewOrientation(270);
// }
mVideoPath = getIntent().getStringExtra("videoPath");
AVOptions options = new AVOptions();
int isLiveStreaming = getIntent().getIntExtra("liveStreaming", 1);
// the unit of timeout is ms
options.setInteger(AVOptions.KEY_PREPARE_TIMEOUT, 10 * 1000);
options.setInteger(AVOptions.KEY_GET_AV_FRAME_TIMEOUT, 10 * 1000);
// Some optimization with buffering mechanism when be set to 1
options.setInteger(AVOptions.KEY_LIVE_STREAMING, isLiveStreaming);
if (isLiveStreaming == 1) {
options.setInteger(AVOptions.KEY_DELAY_OPTIMIZATION, 1);
}
// 1 -> hw codec enable, 0 -> disable [recommended]
int codec = getIntent().getIntExtra("mediaCodec", 0);
options.setInteger(AVOptions.KEY_MEDIACODEC, codec);
// whether start play automatically after prepared, default value is 1
options.setInteger(AVOptions.KEY_START_ON_PREPARED, 0);
mVideoView.setAVOptions(options);
// You can mirror the display
// mVideoView.setMirror(true);
// You can also use a custom `MediaController` widget
mMediaController = new MediaController(this, false, isLiveStreaming == 1);
mVideoView.setMediaController(mMediaController);
mVideoView.setOnInfoListener(mOnInfoListener);
// mVideoView.setOnVideoSizeChangedListener(mOnVideoSizeChangedListener);
mVideoView.setOnBufferingUpdateListener(mOnBufferingUpdateListener);
mVideoView.setOnCompletionListener(mOnCompletionListener);
mVideoView.setOnSeekCompleteListener(mOnSeekCompleteListener);
mVideoView.setOnErrorListener(mOnErrorListener);
mVideoView.setVideoPath(mVideoPath);
mVideoView.setDisplayAspectRatio(PLVideoView.ASPECT_RATIO_PAVED_PARENT);
mVideoView.setOnPreparedListener(mOnPreparedListener);
mVideoView.setOnVideoSizeChangedListener(new PLMediaPlayer.OnVideoSizeChangedListener() {
@Override
public void onVideoSizeChanged(PLMediaPlayer plMediaPlayer, int width, int height) {
Logger.i("width:" + width + "---heightL:" + height);
if (width > height) {
//視頻是橫屏 旋轉方向
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
}
});
mVideoView.setVideoPath(mVideoPath);
mVideoView.start();
}
@Override
protected void onPause() {
super.onPause();
mToast = null;
mVideoView.pause();
}
@Override
protected void onResume() {
super.onResume();
mVideoView.start();
}
@Override
protected void onDestroy() {
super.onDestroy();
mVideoView.stopPlayback();
}
public void onClickRotate(View v) {
mRotation = (mRotation + 90) % 360;
mVideoView.setDisplayOrientation(mRotation);
}
public void onClickSwitchScreen(View v) {
mDisplayAspectRatio = (mDisplayAspectRatio + 1) % 5;
mVideoView.setDisplayAspectRatio(mDisplayAspectRatio);
switch (mVideoView.getDisplayAspectRatio()) {
case PLVideoTextureView.ASPECT_RATIO_ORIGIN:
showToastTips("Origin mode");
break;
case PLVideoTextureView.ASPECT_RATIO_FIT_PARENT:
showToastTips("Fit parent !");
break;
case PLVideoTextureView.ASPECT_RATIO_PAVED_PARENT:
showToastTips("Paved parent !");
break;
case PLVideoTextureView.ASPECT_RATIO_16_9:
showToastTips("16 : 9 !");
break;
case PLVideoTextureView.ASPECT_RATIO_4_3:
showToastTips("4 : 3 !");
break;
default:
break;
}
}
private PLMediaPlayer.OnErrorListener mOnErrorListener = new PLMediaPlayer.OnErrorListener() {
@Override
public boolean onError(PLMediaPlayer mp, int errorCode) {
switch (errorCode) {
case PLMediaPlayer.ERROR_CODE_INVALID_URI:
showToastTips("Invalid URL !");
break;
case PLMediaPlayer.ERROR_CODE_404_NOT_FOUND:
showToastTips("404 resource not found !");
break;
case PLMediaPlayer.ERROR_CODE_CONNECTION_REFUSED:
showToastTips("Connection refused !");
break;
case PLMediaPlayer.ERROR_CODE_CONNECTION_TIMEOUT:
showToastTips("Connection timeout !");
break;
case PLMediaPlayer.ERROR_CODE_EMPTY_PLAYLIST:
showToastTips("Empty playlist !");
break;
case PLMediaPlayer.ERROR_CODE_STREAM_DISCONNECTED:
showToastTips("Stream disconnected !");
break;
case PLMediaPlayer.ERROR_CODE_IO_ERROR:
showToastTips("Network IO Error !");
break;
case PLMediaPlayer.ERROR_CODE_UNAUTHORIZED:
showToastTips("Unauthorized Error !");
break;
case PLMediaPlayer.ERROR_CODE_PREPARE_TIMEOUT:
showToastTips("Prepare timeout !");
break;
case PLMediaPlayer.ERROR_CODE_READ_FRAME_TIMEOUT:
showToastTips("Read frame timeout !");
break;
case PLMediaPlayer.MEDIA_ERROR_UNKNOWN:
default:
showToastTips("unknown error !");
break;
}
// Todo pls handle the error status here, retry or call finish()
finish();
// If you want to retry, do like this:
// mVideoView.setVideoPath(mVideoPath);
// mVideoView.start();
// Return true means the error has been handled
// If return false, then `onCompletion` will be called
return true;
}
};
private PLMediaPlayer.OnCompletionListener mOnCompletionListener = new PLMediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(PLMediaPlayer plMediaPlayer) {
// finish();
showToast("視頻播放完成");
}
};
private PLMediaPlayer.OnBufferingUpdateListener mOnBufferingUpdateListener = new PLMediaPlayer.OnBufferingUpdateListener() {
@Override
public void onBufferingUpdate(PLMediaPlayer plMediaPlayer, int precent) {
}
};
private PLMediaPlayer.OnSeekCompleteListener mOnSeekCompleteListener = new PLMediaPlayer.OnSeekCompleteListener() {
@Override
public void onSeekComplete(PLMediaPlayer plMediaPlayer) {
Logger.d("onSeekComplete !");
}
};
private PLMediaPlayer.OnPreparedListener mOnPreparedListener = new PLMediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(PLMediaPlayer plMediaPlayer) {
}
};
private PLMediaPlayer.OnInfoListener mOnInfoListener = new PLMediaPlayer.OnInfoListener() {
@Override
public boolean onInfo(PLMediaPlayer plMediaPlayer, int what, int extra) {
switch (what) {
case PLMediaPlayer.MEDIA_INFO_BUFFERING_START:
Logger.i("正在緩沖----");
//開始緩存,暫停播放
if (isPlaying()) {
// stopPlayer();
if (mVideoView != null) {
mVideoView.pause();
}
needResume = true;
}
rl_loading.setVisibility(View.VISIBLE);
break;
case PLMediaPlayer.MEDIA_INFO_BUFFERING_END:
case PLMediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START:
Logger.i("緩沖完成----");
//緩存完成,繼續播放
if (needResume)
// startPlayer();
if (mVideoView != null) {
mVideoView.start();
}
rl_loading.setVisibility(View.GONE);
break;
case PLMediaPlayer.MEDIA_INFO_BUFFERING_BYTES_UPDATE:
//顯示 下載速度
Logger.e("download rate:" + extra);
//mListener.onDownloadRateChanged(arg2);
break;
}
Logger.i("onInfo:" + what + "___" + extra);
return false;
}
};
}
這樣就完成了普通視頻的播放和旋轉視頻播放
看似簡單 其實隱藏著大問題 ,也就是我所說的大坑
現在我是這樣判斷角度的 當視頻的寬度大於高度的 我就認為這是一個橫屏的視頻 ,也就是說假如這個視頻是1330X720(我隨便說的尺寸,只為舉例)現在寬度大於高度了 那麼這就是一個橫屏的視頻,但是我只要播放手機拍攝的視頻就會發現視頻被放大了 ,但是其實我錄制視頻的時候是豎著排的 ,可視播放的時候卻給我橫著過來了,然後我就去看這個手機拍攝視頻的尺寸 現在一般錄制視頻最低都是1280X720 ,恰好符合我判斷的邏輯 ,難道他真是橫著的? 然後我就用系統自帶的播放器打開 ,居然沒有橫過來 ,而是豎著播放的 ,可它是怎麼知道這個方向呢?於是我在百度搜 ,確實可以獲取到本地視頻的角度,但是好像低版本好像不兼容,然後根據角度去判斷 是否需要旋轉,可是我這個是網絡視頻啊 ,網絡視頻怎麼獲取到視頻角度啊 ? 我第一反應是 上傳視頻的時候把寬高角度傳到服務器 ,然後獲取的時候根據這個角度旋轉 ,但是別人播放網絡視頻的時候也沒有傳角度過去啊 - - 然後我就在github上面問那個作者 ,結果他說
“onInfo: 10001, 90”, 收到這個消息後,使用 PLVideoTextureView 的 setDisplayOrientation 旋轉顯示的方向,後面會補充這個回調的接口和文檔。
我暈 ,你這不說 誰知道啊 坑死啊 - -
然後我就修改了下代碼
/**
* 視頻的方向
*/
private int mVideoRotation;
private boolean needResume;
private PLMediaPlayer.OnInfoListener mOnInfoListener = new PLMediaPlayer.OnInfoListener() {
@Override
public boolean onInfo(PLMediaPlayer plMediaPlayer, int what, int extra) {
switch (what) {
case PLMediaPlayer.MEDIA_INFO_BUFFERING_START:
Logger.i("正在緩沖----");
//開始緩存,暫停播放
if (isPlaying()) {
// stopPlayer();
if (mVideoView != null) {
mVideoView.pause();
}
needResume = true;
}
rl_loading.setVisibility(View.VISIBLE);
break;
case PLMediaPlayer.MEDIA_INFO_BUFFERING_END:
case PLMediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START:
Logger.i("緩沖完成----");
//緩存完成,繼續播放
if (needResume)
// startPlayer();
if (mVideoView != null) {
mVideoView.start();
}
rl_loading.setVisibility(View.GONE);
break;
case PLMediaPlayer.MEDIA_INFO_BUFFERING_BYTES_UPDATE:
//顯示 下載速度
Logger.e("download rate:" + extra);
//mListener.onDownloadRateChanged(arg2);
break;
case 10001:
//保存視頻角度
mVideoRotation=extra;
break;
}
Logger.i("onInfo:" + what + "___" + extra);
return false;
}
};
然後在onVideoSizeChanged的回調裡這樣
mVideoView.setOnVideoSizeChangedListener(new PLMediaPlayer.OnVideoSizeChangedListener() {
@Override
public void onVideoSizeChanged(PLMediaPlayer plMediaPlayer, int width, int height) {
Logger.i("width:" + width + "---heightL:" + height);
if (width > height&&mVideoRotation==0) {
//旋轉方向
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
//如果視頻角度是90度
if(mVideoRotation==90)
{
//旋轉視頻
mVideoView.setDisplayOrientation(270);
}
}
});
這樣 不管是什麼視頻 播放終於正常了 - -
筆者之前已經寫過了一些自定義View的文章,在此對其也就不從頭說起了,如有興趣的讀者可以看一下筆者的前兩篇文章。筆者之前的文章中僅僅介紹了如何使用自定義View以及為什麼
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