Android 使用PLDroidPlayer播放网络视频 依据视频角度自己主动旋转

近期由于项目需求 。须要播放网络视频 。于是乎 研究了一番 ，说说我遇到的那些坑

如今市面上有几个比較主流好用的第三方框架

• Vitamio （ 体积比較大，有商业化风险 github:https://github.com/yixia/VitamioBundle/）
• ijkplayer（B站下开源的框架 体积大 配置环境比較麻烦 github:https://github.com/Bilibili/ijkplayer ）
• PLDroidPlayer（七牛依据ijkplayer二次开发的 定制简单 github:https://github.com/pili-engineering/PLDroidPlayer）

当然还有非常多别的视频播放框架 由于我仅仅找到这几个= =！

由于项目比較急，所以我用的比較简单的 PLDroidPlayer

首先把须要的jar包和jni文件拷到你的项目中
这个里面有非常多控件。你们能够依据自己的需求来用指定的控件。我用的是PLVideoTextureView

<com.pili.pldroid.player.widget.PLVideoTextureView
        android:id="@+id/video"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerInParent="true" />
... prompt'''

然后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) {
                    //视频是横屏 旋转方向
                   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("视频播放完毕");
        }
    };

    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("正在缓冲----");
                    //開始缓存，暂停播放
                    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("缓冲完毕----");
                    //缓存完毕，继续播放
                    if (needResume)
//                        startPlayer();
                        if (mVideoView != null) {
                            mVideoView.start();
                        }
                    rl_loading.setVisibility(View.GONE);
                    break;
                case PLMediaPlayer.MEDIA_INFO_BUFFERING_BYTES_UPDATE:
                    //显示 下载速度
                    Logger.e("download rate:" + extra);
                    //mListener.onDownloadRateChanged(arg2);
                    break;
            }
            Logger.i("onInfo:" + what + "___" + extra);
            return false;
        }
    };
}

这样就完毕了普通视频的播放和旋转视频播放

看似简单 事实上隐藏着大问题 。也就是我所说的大坑
如今我是这样推断角度的 当视频的宽度大于高度的 我就觉得这是一个横屏的视频 ，也就是说假如这个视频是1330X720（我随便说的尺寸，仅仅为举例）如今宽度大于高度了 那么这就是一个横屏的视频，可是我仅仅要播放手机拍摄的视频就会发现视频被放大了 ，可是事实上我录制视频的时候是竖着排的 。可视播放的时候却给我横着过来了，然后我就去看这个手机拍摄视频的尺寸 如今一般录制视频最低都是1280X720 。恰好符合我推断的逻辑 。难道他真是横着的？ 然后我就用系统自带的播放器打开 ，竟然没有横过来 ，而是竖着播放的 ，可它是怎么知道这个方向呢？于是我在百度搜 。确实能够获取到本地视频的角度。可是好像低版本号好像不兼容，然后依据角度去推断 是否须要旋转。可是我这个是网络视频啊 ，网络视频怎么获取到视频角度啊 ？ 我第一反应是 上传视频的时候把宽高角度传到server ，然后获取的时候依据这个角度旋转 ，可是别人播放网络视频的时候也没有传角度过去啊 - - 然后我就在github上面问那个作者 ，结果他说

“onInfo: 10001, 90”, 收到这个消息后。使用 PLVideoTextureView 的 setDisplayOrientation 旋转显示的方向。后面会补充这个回调的接口和文档。

我晕 ，你这不说 谁知道啊 坑死啊 - -
然后我就改动了下代码

 /**
     * 视频的方向
     */
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("正在缓冲----");
                    //開始缓存，暂停播放
                    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("缓冲完毕----");
                    //缓存完毕。继续播放
                    if (needResume)
//                        startPlayer();
                        if (mVideoView != null) {
                            mVideoView.start();
                        }
                    rl_loading.setVisibility(View.GONE);
                    break;
                case PLMediaPlayer.MEDIA_INFO_BUFFERING_BYTES_UPDATE:
                    //显示 下载速度
                    Logger.e("download rate:" + extra);
                    //mListener.onDownloadRateChanged(arg2);
                    break;
                case 10001:
                    //保存视频角度
                    mVideoRotation=extra;

                    break;
            }
            Logger.i("onInfo:" + what + "___" + extra);
            return false;
        }
    };

然后在onVideoSizeChanged的回调里这样

 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) {
                    //旋转方向
                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                }
                //假设视频角度是90度
                if(mVideoRotation==90)
                {
                   //旋转视频
                    mVideoView.setDisplayOrientation(270);
                }

            }
        });

这样 无论是什么视频 播放最终正常了 - -

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