android - Android 媒体播放器 - DRM - Widevine
问题描述
我有这个带有 Widevine DRM 保护的流: https ://amssamples.streaming.mediaservices.windows.net/622b189f-ec39-43f2-93a2-201ac4e31ce1/BigBuckBunny.ism/manifest
我必须使用Android MediaPlayer重现它,但我没有找到任何如何实际实现它的示例。我已经播放了没有 Widevine 保护的视频,所以我想知道播放视频还需要什么,但需要 Widevine DRM 保护。
我正在使用 Android Studio 并在 Android Pie 上运行该应用程序。
这是activity_main.xml代码:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:id="@+id/frameLayout"
android:layout_width="390dp"
android:layout_height="530dp"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.521"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<VideoView
android:id="@+id/videoView"
android:layout_width="wrap_content"
android:layout_height="match_parent" />
</FrameLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="40dp"
android:layout_marginEnd="16dp"
android:orientation="horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/frameLayout">
<Space
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:id="@+id/button_raw"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:text="Play With Widevine Protection" />
<Space
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
这是MainActivity.java:
package com.example.mediaplayerbasic;
import androidx.appcompat.app.AppCompatActivity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.widget.MediaController;
import android.widget.TextView;
import android.widget.VideoView;
import android.media.MediaPlayer.OnPreparedListener;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
private VideoView videoView;
private int position = 0;
private MediaController mediaController;
private Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.videoView = (VideoView) findViewById(R.id.videoView);
this.button = (Button) findViewById(R.id.button_raw);
if (this.mediaController == null) {
this.mediaController = new MediaController(MainActivity.this);
this.mediaController.setAnchorView(videoView);
this.videoView.setMediaController(mediaController);
}
this.videoView.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mediaPlayer) {
videoView.seekTo(position);
if (position == 0) {
videoView.start();
}
mediaPlayer.setOnVideoSizeChangedListener(new MediaPlayer.OnVideoSizeChangedListener() {
@Override
public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
mediaController.setAnchorView(videoView);
}
});
}
});
this.button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String resName = VideoViewUtils.URL_VIDEO_SAMPLE;
VideoViewUtils.playURLVideo(MainActivity.this, videoView, resName);
}
});
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putInt("CurrentPosition", videoView.getCurrentPosition());
videoView.pause();
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
position = savedInstanceState.getInt("CurrentPosition");
videoView.seekTo(position);
}
}
这是VideoViewUtils.java:
package com.example.mediaplayerbasic;
import android.content.Context;
import android.net.Uri;
import android.util.Log;
import android.widget.Toast;
import android.widget.VideoView;
public class VideoViewUtils {
public static final String RAW_VIDEO_SAMPLE = "assembly_line";
public static final String LOCAL_VIDEO_SAMPLE = "/res/raw/assembly_line.mp4";
public static final String URL_VIDEO_SAMPLE = "https://amssamples.streaming.mediaservices.windows.net/622b189f-ec39-43f2-93a2-201ac4e31ce1/BigBuckBunny.ism/manifest";
public static final String LOG_TAG = "AndroidVideoView";
public static void playRawVideo(Context context, VideoView videoView, String resName) {
try {
int id = VideoViewUtils.getRawResIdByName(context, resName);
Uri uri = Uri.parse("android.resource://" + context.getPackageName() + "/" + id);
Log.i(LOG_TAG, "Video URI: " + uri);
videoView.setVideoURI(uri);
videoView.requestFocus();
} catch (Exception e) {
Log.e(LOG_TAG, "Error Play Raw Video: " + e.getMessage());
Toast.makeText(context, "Error Play Raw Video: " + e.getMessage(), Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
public static void playLocalVideo(Context context, VideoView videoView, String localPath) {
try {
} catch (Exception e) {
Log.e(LOG_TAG, "Error Play Local Video: " + e.getMessage());
Toast.makeText(context, "Error Play Local Video: " + e.getMessage(), Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
public static void playURLVideo(Context context, VideoView videoView, String videoURL) {
try {
Log.i(LOG_TAG, "Video URL: " + videoURL);
Uri uri = Uri.parse(videoURL);
videoView.setVideoURI(uri);
videoView.requestFocus();
} catch (Exception e) {
Log.e(LOG_TAG, "Error Play URL Video: " + e.getMessage());
Toast.makeText(context, "Error Play URL Video: " + e.getMessage(), Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
public static int getRawResIdByName(Context context, String resName) {
String pkgName = context.getPackageName();
int resID = context.getResources().getIdentifier(resName, "raw", pkgName);
Log.i(LOG_TAG, "Res Name: " + resName + "==> Res ID = " + resID);
return resID;
}
}
使用 VideView 和 MediaPlayer,我还需要编写什么代码才能将 Widevine DRM 保护支持添加到我的应用程序中?谢谢!
解决方案
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