Android開發-基於ijkplayer框架開發網路電視直播播放器的實現
阿新 • • 發佈：2018-11-10
前 言
ijkplayer框架是由B站在GitHub開源的一款比較好用的開源網路播放器框架，它能支援在Android、IOS等平臺上編譯移植使用。而且支援多種視訊格式的播放，而且編碼的速度比傳統的開源網路播放器還要快。除此之外，ijkplayer框架支援網路視訊播放時彈幕的推送等功能。
開發環境
Android Studio 3.1.2
JDK 1.8
開發前準備
在Android Studio新建的專案裡引入ijkplayer框架（ijkplayer框架GitHub下載地址）作為依賴項，並在build.gradle（Module:app）引入檔案。如下圖所示。
implementation project(':ijkplayer-java')在主專案的下\app\src\main\目錄下新建一個jniLibs目錄，並把ijkplayer框架需要支援的.so檔案拷貝貼上進去，如下圖所示。
編碼與實現
在Android Studio的\res\layout目錄下新建一個activity_play.xml檔案作為視訊播放器的顯示介面，佈局程式碼如下。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 在Android Studio的app\src\main\java\目錄下新建一個PlayActivity,java檔案作為處理視訊播放器的邏輯程式碼，邏輯程式碼如下。
package com.fukaimei.cloudtv.player;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.support.v7.preference.PreferenceManager;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.CheckBox;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import com.fukaimei.cloudtv.R;
import com.fukaimei.cloudtv.base.BaseActivity;
//import com.fukaimei.cloudtv.detail.AlbumDetailActivity;
//import com.fukaimei.cloudtv.model.sohu.Video;
import com.fukaimei.cloudtv.utils.DateUtils;
import com.fukaimei.cloudtv.utils.SysUtils;
import com.fukaimei.cloudtv.widget.media.IjkVideoView;
import java.text.NumberFormat;
import java.util.Formatter;
import java.util.Locale;
import tv.danmaku.ijk.media.player.IMediaPlayer;
import tv.danmaku.ijk.media.player.IjkMediaPlayer;
public class PlayActivity extends BaseActivity implements GestureDetectorController.IGestureListener {
private static final String TAG = PlayActivity.class.getSimpleName();
private static final int CHECK_TIME = 1;
private static final int CHECK_BATTERY = 2;
private static final int CHECK_PROGRESS = 3;
private static final int AUTO_HIDE_TIME = 10000;
private static final int AFTER_DRAGGLE_HIDE_TIME = 3000;
private String mUrl;
private int mStreamType;
private int mCurrentPosition;
// private Video mVideo;
private IjkVideoView mVideoView;
private RelativeLayout mLoadingLayout;
private TextView mLoadingText;
private FrameLayout mTopLayout;
private LinearLayout mBottomLayout;
private ImageView mBackButton;
private TextView mVideoNameView;
private TextView mSysTimeView;
private ImageView mBigPauseButton;
private CheckBox mPlayOrPauseButton;
private TextView mVideoCurrentTime;
private TextView mVideoTotalTime;
private TextView mBitStreamView;
private EventHandler mEventHandler;
private boolean mIsPanelShowing = false;
private int mBatteryLevel;
private ImageView mBatteryView;
private boolean mIsMove = false;//是否在螢幕上滑動
private SeekBar mSeekBar;
private Formatter mFormatter;
private StringBuilder mFormatterBuilder;
private boolean mIsDragging;
private GestureDetectorController mGestureController;
private TextView mDragHorizontalView;
private TextView mDragVerticalView;
private long mScrollProgress;
private boolean mIsHorizontalScroll;
private boolean mIsVerticalScroll;
private int mCurrentLight;
private int mMaxLight = 255;
private int mCurrentVolume;
private int mMaxVolume = 10;
private AudioManager mAudioManager;
private String mLiveTitle;//直播節目標題
@Override
protected int getLayoutId() {
return R.layout.activity_play;
}
@Override
protected void onResume() {
super.onResume();
}
@Override
protected void onPause() {
super.onPause();
if (mBatteryReceiver != null) {
unregisterReceiver(mBatteryReceiver);
mBatteryReceiver = null;
}
//釋放audiofocus
mAudioManager.abandonAudioFocus(null);
}
/**
* 通過廣播獲取系統電量情況
*/
private BroadcastReceiver mBatteryReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mBatteryLevel = intent.getIntExtra("level", 0);
Log.d(TAG, ">> mBatteryReceiver onReceive mBatteryLevel=" + mBatteryLevel);
}
};
@Override
public void onScrollStart(GestureDetectorController.ScrollType type) {
mIsMove = true;
switch (type) {
case HORIZONTAL:
mDragHorizontalView.setVisibility(View.VISIBLE);
mScrollProgress = -1;
mIsHorizontalScroll = true;//水平滑動標識
break;
case VERTICAL_LEFT:
setComposeDrawableAndText(mDragVerticalView, R.drawable.ic_light, this);
mDragVerticalView.setVisibility(View.VISIBLE);
updateVerticalText(mCurrentLight, mMaxLight);
mIsVerticalScroll = true;
break;
case VERTICAL_RIGH:
if (mCurrentVolume > 0) {
setComposeDrawableAndText(mDragVerticalView, R.drawable.volume_normal, this);
} else {
setComposeDrawableAndText(mDragVerticalView, R.drawable.volume_no, this);
}
mDragVerticalView.setVisibility(View.VISIBLE);
updateVerticalText(mCurrentVolume, mMaxVolume);
mIsVerticalScroll = true;
break;
}
}
//用於組合圖片及文字
private void setComposeDrawableAndText(TextView textView, int drawableId, Context context) {
Drawable drawable = context.getResources().getDrawable(drawableId);
//這四個引數表示把drawable繪製在矩形區域
drawable.setBounds(0, 0, drawable.getMinimumWidth(), drawable.getMinimumHeight());
//設定圖片在文字的上方
//The Drawables must already have had drawable.setBounds called.
textView.setCompoundDrawables(null, drawable, null, null);
}
//更新垂直方向上滑動時的百分比
private void updateVerticalText(int current, int total) {
NumberFormat formater = NumberFormat.getPercentInstance();
formater.setMaximumFractionDigits(0);//設定整數部分允許最大小數位 66.5%->66%
String percent = formater.format((double) (current) / (double) total);
mDragVerticalView.setText(percent);
}
//更新水平方向seek的進度, duration表示變化後的duration
private void updateHorizontalText(long duration) {
String text = stringForTime((int) duration) + "/" + stringForTime(mVideoView.getDuration());
mDragHorizontalView.setText(text);
}
// 更新進度
@Override
public void onScrollHorizontal(float x1, float x2) {
int width = getResources().getDisplayMetrics().widthPixels;
int MAX_SEEK_STEP = 300000;//最大滑動5分鐘
int offset = (int) (x2 / width * MAX_SEEK_STEP) + mVideoView.getCurrentPosition();
long progress = Math.max(0, Math.min(mVideoView.getDuration(), offset));
mScrollProgress = progress;
updateHorizontalText(progress);
}
@Override
public void onScrollVerticalLeft(float y1, float y2) {
int height = getResources().getDisplayMetrics().heightPixels;
int offset = (int) (mMaxLight * y1) / height;
if (Math.abs(offset) > 0) {
mCurrentLight += offset;//得到變化後的亮度
mCurrentLight = Math.max(0, Math.min(mMaxLight, mCurrentLight));
// 更新系統亮度
SysUtils.setBrightness(this, mCurrentLight);
SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(this).edit();
editor.putInt("shared_preferences_light", mCurrentLight);
editor.commit();
updateVerticalText(mCurrentLight, mMaxLight);
}
}
@Override
public void onScrollVerticalRight(float y1, float y2) {
int height = getResources().getDisplayMetrics().heightPixels;
int offset = (int) (mMaxVolume * y1) / height;
if (Math.abs(offset) > 0) {
mCurrentVolume += offset;//得到變化後的聲音
mCurrentVolume = Math.max(0, Math.min(mMaxVolume, mCurrentVolume));
// 更新系統聲音
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, mCurrentVolume / 10, 0);
updateVerticalText(mCurrentVolume, mMaxVolume);
}
}
class EventHandler extends Handler {
public EventHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case CHECK_TIME:
runOnUiThread(new Runnable() {
@Override
public void run() {
mSysTimeView.setText(DateUtils.getCurrentTime());
}
});
break;
case CHECK_BATTERY:
runOnUiThread(new Runnable() {
@Override
public void run() {
setCurrentBattery();
}
});
break;
case CHECK_PROGRESS:
runOnUiThread(new Runnable() {
@Override
public void run() {
long duration = mVideoView.getDuration();
long nowduration = (mSeekBar.getProgress() * duration) / 1000L;
mVideoCurrentTime.setText(stringForTime((int) nowduration));
}
});
break;
}
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_UP) {
if (mIsMove == false) {
toggleTopAndBottomLayout();
} else {
mIsMove = false;
}
//水平方向,up時,seek到對應位置播放
if (mIsHorizontalScroll) {
mIsHorizontalScroll = false;
mVideoView.seekTo((int) mScrollProgress);
//一次down,up結束後mDragHorizontalView隱藏
mDragHorizontalView.setVisibility(View.GONE);
}
if (mIsVerticalScroll) {
mDragVerticalView.setVisibility(View.GONE);
mIsVerticalScroll = false;
}
}
return mGestureController.onTouchEvent(event);
}
@Override
protected void initView() {
mUrl = getIntent().getStringExtra("url");
// mUrl = "http://ivi.bupt.edu.cn/hls/cctv1.m3u8";
// mLiveTitle = "CCTV-1綜合";
mLiveTitle = getIntent().getStringExtra("title");
mStreamType = getIntent().getIntExtra("type", 0);
mCurrentPosition = getIntent().getIntExtra("currentPosition", 0);
// mVideo = getIntent().getParcelableExtra("video");
// Log.d(TAG, ">> ulr " + mUrl + ", mStreamType " + mStreamType + ", mCurrentPosition " + mCurrentPosition);
// Log.d(TAG, ">> video " + mVideo);
mEventHandler = new EventHandler(Looper.myLooper());
initAudio();
initLight();
initGesture();
initTopAndBottomView();
initCenterView();
initListener();
//init player
mVideoView = bindViewId(R.id.video_view);
IjkMediaPlayer.loadLibrariesOnce(null);
IjkMediaPlayer.native_profileBegin("libijkplayer.so");
mLoadingLayout = bindViewId(R.id.rl_loading_layout);
mLoadingText = bindViewId(R.id.tv_loading_info);
mLoadingText.setText("正在載入中...");
mVideoView.setVideoURI(Uri.parse(mUrl));
mVideoView.setOnPreparedListener(new IMediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(IMediaPlayer mp) {
mVideoView.start();
}
});
mVideoView.setOnInfoListener(new IMediaPlayer.OnInfoListener() {
@Override
public boolean onInfo(IMediaPlayer mp, int what, int extra) {
switch (what) {
case IjkMediaPlayer.MEDIA_INFO_BUFFERING_START:
mLoadingLayout.setVisibility(View.VISIBLE);
break;
case IjkMediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START:
case IjkMediaPlayer.MEDIA_INFO_BUFFERING_END:
mLoadingLayout.setVisibility(View.GONE);
break;
}
return false;
}
});
registerReceiver(mBatteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
toggleTopAndBottomLayout();
}
private void initCenterView() {
mDragHorizontalView = bindViewId(R.id.tv_horiontal_gesture);
mDragVerticalView = bindViewId(R.id.tv_vertical_gesture);
}
private void initAudio() {
mAudioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
setVolumeControlStream(AudioManager.STREAM_MUSIC);
mAudioManager.requestAudioFocus(null, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
mMaxVolume = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC) * 10;// 系統聲音取值是0-10,*10為了和百分比相關
mCurrentVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC) * 10;
}
private void initLight() {
mCurrentLight = SysUtils.getDefaultBrightness(this);
if (mCurrentLight == -1) {//獲取不到亮度sharedpreferences檔案
mCurrentLight = SysUtils.getBrightness(this);
}
}
private void initGesture() {
mGestureController = new GestureDetectorController(this, this);
}
private void initTopAndBottomView() {
mTopLayout = bindViewId(R.id.fl_player_top_container);
mBottomLayout = bindViewId(R.id.ll_player_bottom_layout);
mBackButton = bindViewId(R.id.iv_player_close);//返回按鈕
mVideoNameView = bindViewId(R.id.tv_player_video_name);//video標題
mBatteryView = bindViewId(R.id.iv_battery);
mSysTimeView = bindViewId(R.id.tv_sys_time);//系統時間
mBigPauseButton = bindViewId(R.id.iv_player_center_pause);//螢幕中央暫停按鈕
mPlayOrPauseButton = bindViewId(R.id.cb_play_pause);//底部播放暫停按鈕
mVideoCurrentTime = bindViewId(R.id.tv_current_video_time);//當前播放進度
mVideoTotalTime = bindViewId(R.id.tv_total_video_time);//視訊總時長
mBitStreamView = bindViewId(R.id.tv_bitstream);//碼流
mSeekBar = bindViewId(R.id.sb_player_seekbar);
mSeekBar.setMax(1000);
mSeekBar.setOnSeekBarChangeListener(mSeekBarChangeListener);
mFormatterBuilder = new StringBuilder();
mFormatter = new Formatter(mFormatterBuilder, Locale.getDefault());
}
private void initListener() {
mBackButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
mBigPauseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mVideoView.start();
updatePlayPauseStatus(true);
}
});
mPlayOrPauseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
handlePlayPause();
}
});
}
private void toggleTopAndBottomLayout() {
if (mIsPanelShowing) {
hideTopAndBottomLayout();
} else {
showTopAndBottomLayout();
//先顯示,沒有任何操作,就5s後隱藏
mEventHandler.postDelayed(new Runnable() {
@Override
public void run() {
hideTopAndBottomLayout();
}
}, AUTO_HIDE_TIME);
}
}
private void showTopAndBottomLayout() {
mIsPanelShowing = true;
mTopLayout.setVisibility(View.VISIBLE);
mBottomLayout.setVisibility(View.VISIBLE);
updateProgress();
if (mEventHandler != null) {
mEventHandler.removeMessages(CHECK_TIME);
Message msg = mEventHandler.obtainMessage(CHECK_TIME);
mEventHandler.sendMessage(msg);
mEventHandler.removeMessages(CHECK_BATTERY);
Message batterymsg = mEventHandler.obtainMessage(CHECK_BATTERY);
mEventHandler.sendMessage(batterymsg);
mEventHandler.removeMessages(CHECK_PROGRESS);
Message progressmsg = mEventHandler.obtainMessage(CHECK_PROGRESS);
mEventHandler.sendMessage(progressmsg);
}
switch (mStreamType) {
// case AlbumDetailActivity.StreamType.SUPER:
// mBitStreamView.setText(getResources().getString(R.string.stream_super));
// break;
// case AlbumDetailActivity.StreamType.NORMAL:
// mBitStreamView.setText(getResources().getString(R.string.stream_normal));
// break;
// case AlbumDetailActivity.StreamType.HIGH:
// mBitStreamView.setText(getResources().getString(R.string.stream_high));
// break;
default:
break;
}
}
private void hideTopAndBottomLayout() {
if (mIsDragging == true) {
return;
}
mIsPanelShowing = false;
mTopLayout.setVisibility(View.GONE);
mBottomLayout.setVisibility(View.GONE);
}
private void handlePlayPause() {
//TODO
if (mVideoView.isPlaying()) {//視訊正在播放
mVideoView.pause();
updatePlayPauseStatus(false);
} else {
mVideoView.start();
updatePlayPauseStatus(true);
}
}
private void updatePlayPauseStatus(boolean isPlaying) {
mBigPauseButton.setVisibility(isPlaying ? View.GONE : View.VISIBLE);
mPlayOrPauseButton.invalidate();
mPlayOrPauseButton.setChecked(isPlaying);
mPlayOrPauseButton.refreshDrawableState();
}
@Override
protected void initData() {
// Log.d(TAG, ">> initData mVideo=" + mVideo);
// if (mVideo != null) {
// Log.d(TAG, ">> initData mVideoName" + mVideo.getVideoName());
// mVideoNameView.setText(mVideo.getVideoName());
// }
if (mLiveTitle != null) {
mVideoNameView.setText(mLiveTitle);
}
}
private void setCurrentBattery() {
Log.d(TAG, ">> setCurrentBattery level " + mBatteryLevel);
if (0 < mBatteryLevel && mBatteryLevel <= 10) {
mBatteryView.setBackgroundResource(R.drawable.ic_battery_10);
} else if (10 < mBatteryLevel && mBatteryLevel <= 20) {
mBatteryView.setBackgroundResource(R.drawable.ic_battery_20);
} else if (20 < mBatteryLevel && mBatteryLevel <= 50) {
mBatteryView.setBackgroundResource(R.drawable.ic_battery_50);
} else if (50 < mBatteryLevel && mBatteryLevel <= 80) {
mBatteryView.setBackgroundResource(R.drawable.ic_battery_80);
} else if (80 < mBatteryLevel && mBatteryLevel <= 100) {
mBatteryView.setBackgroundResource(R.drawable.ic_battery_100);
}
}
@Override
protected void onStop() {
super.onStop();
if (mVideoView != null) {
mVideoView.stopPlayback();
}
}
private SeekBar.OnSeekBarChangeListener mSeekBarChangeListener = new SeekBar.OnSeekBarChangeListener() {
// seekbar進度發生變化時回撥
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (!fromUser) {
return;
}
long duration = mVideoView.getDuration();//視訊時長
long nowPosition = (duration * progress) / 1000L;
mVideoCurrentTime.setText(stringForTime((int) nowPosition));
}
// seekbar開始拖動時回撥
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
mIsDragging = true;
}
// seekbar拖動完成後回撥
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
mIsDragging = false;
int progress = seekBar.getProgress();//最後拖動停止的進度
long duration = mVideoView.getDuration();//視訊時長
long newPosition = (duration * progress) / 1000L;//當前的進度
mVideoView.seekTo((int) newPosition);
mEventHandler.postDelayed(new Runnable() {
@Override
public void run() {
hideTopAndBottomLayout();
}
}, AFTER_DRAGGLE_HIDE_TIME);
}
};
private void updateProgress() {
int currentPosition = mVideoView.getCurrentPosition();//當前的視訊位置
int duration = mVideoView.getDuration();//視訊時長
if (mSeekBar != null) {
if (duration > 0) {
//轉成long型,避免溢位
long pos = currentPosition * 1000L / duration;
mSeekBar.setProgress((int) pos);
}
int perent = mVideoView.getBufferPercentage();//已經緩衝的進度
mSeekBar.setSecondaryProgress(perent);//設定緩衝進度
mVideoCurrentTime.setText(stringForTime(currentPosition));
mVideoTotalTime.setText(stringForTime(duration));
}
}
private String stringForTime(int timeMs) {
int totalSeconds = timeMs / 1000;
int seconds = totalSeconds % 60; //換成秒
int minutes = (totalSeconds / 60) % 60;
int hours = (totalSeconds / 3600);
mFormatterBuilder.setLength(0);
if (hours > 0) {
return mFormatter.format("%d:%02d:%02d", hours, minutes, seconds).toString();
} else {
return mFormatter.format("%02d:%02d", minutes, seconds).toString();
}
}
//從直播模組跳轉過來
public static void launch(Activity activity, String url, String title) {
Intent intent = new Intent(activity, PlayActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.putExtra("url", url);
intent.putExtra("title", title);
activity.startActivity(intent);
}
}在該檔案的邏輯程式碼中onScrollStart()方法主要實現的是對一些手勢在裝置螢幕上滑動進行進行監聽，比如在裝置橫屏的情況左下上下滑調節螢幕的亮度，右上下滑調節音量的大小；setComposeDrawableAndText()方法主要實現的是用於組合圖片及文字；updateVerticalText()方法主要實現的是用於更新垂直方向上滑動時的百分比；onScrollHorizontal()方法主要實現的是更新播放視訊的進度。
測試與執行截圖
