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安卓7的MediaPlayer出现错误(1,-2147483648)

androidandroid-mediaplayerandroid-videoviewrtspandroid-7.0-nougat
3

我正在尝试制作一个从RTSP视频流中获取视频的屏幕。我使用带有SurfaceView的MediaPlayer，但我还尝试使用VideoView，在Android7（sdk24）上都不起作用，但在其他版本上我的代码运行良好。

以下是代码：

class MainActivity : AppCompatActivity(), SurfaceHolder.Callback, MediaPlayer.OnPreparedListener {
private var mediaPlayer: MediaPlayer? = null
private var vidHolder: SurfaceHolder? = null
private var vidSurface: SurfaceView? = null
private var progress: ProgressBar? = null

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    vidSurface = findViewById(R.id.videoView)
    progress = findViewById(R.id.progress)
    progress?.visibility = View.VISIBLE

    vidHolder = vidSurface?.holder
    vidHolder?.addCallback(this)
}

override fun surfaceCreated(holder: SurfaceHolder) {
    try {
        if (mediaPlayer != null) {
            if (!mediaPlayer!!.isPlaying) mediaPlayer?.start()
        } else {
            mediaPlayer = MediaPlayer()
            mediaPlayer?.setDataSource(CAMERA2_URL)
            mediaPlayer?.setOnPreparedListener(this)
            mediaPlayer?.setAudioAttributes(
                AudioAttributes.Builder().setContentType(
                    AudioAttributes.CONTENT_TYPE_MOVIE
                ).build()
            )

            mediaPlayer?.prepareAsync()
        }
        mediaPlayer?.setDisplay(vidHolder)
    } catch (e: Exception) {
        e.printStackTrace()
    }
}

override fun onPrepared(mp: MediaPlayer?) {
    progress?.visibility = View.GONE
    mediaPlayer?.start()
}

override fun onDestroy() {
    super.onDestroy()
    mediaPlayer?.release()
}

override fun surfaceChanged(holder: SurfaceHolder, format: Int, width: Int, height: Int) {}

override fun surfaceDestroyed(holder: SurfaceHolder) {}
}

这是我在 Android 7 设备上启动应用程序时的完整日志：

I/art: Not late-enabling -Xcheck:jni (already on)
W/art: Unexpected CPU variant for X86 using defaults: x86
W/System: ClassLoader referenced unknown path: /data/app/com.example.rtspcameratest-1/lib/x86
W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
I/art:     at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2678)
I/art:     at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:63)
I/art:     at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
I/art:     at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
I/art:     at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:645)
I/art:     at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:787)
I/art:     at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:727)
I/art:     at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:858)
I/art:     at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:821)
I/art:     at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:518)
I/art:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:426)
I/art:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377)
I/art:     at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:896)
I/art:     at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:806)
I/art:     at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:693)
I/art:     at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:170)
I/art:     at void com.example.rtspcameratest.MainActivity.onCreate(android.os.Bundle) (MainActivity.kt:30)
I/art:     at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6662)
I/art:     at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118)
I/art:     at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2599)
I/art:     at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2707)
I/art:     at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
I/art:     at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1460)
I/art:     at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
I/art:     at void android.os.Looper.loop() (Looper.java:154)
I/art:     at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6077)
I/art:     at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
I/art:     at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:866)
I/art:     at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:756)
I/art: Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.example.rtspcameratest-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.rtspcameratest-1/lib/x86, /system/lib, /vendor/lib]]
I/art:     at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56)
I/art:     at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380)
I/art:     at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312)
I/art:     at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2678)
I/art:     at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:63)
I/art:     at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
I/art:     at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
I/art:     at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:645)
I/art:     at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:787)
I/art:     at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:727)
I/art:     at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:858)
I/art:     at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:821)
I/art:     at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:518)
I/art:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:426)
I/art:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377)
I/art:     at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:896)
I/art:     at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:806)
I/art:     at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:693)
I/art:     at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:170)
I/art:     at void com.example.rtspcameratest.MainActivity.onCreate(android.os.Bundle) (MainActivity.kt:30)
I/art:     at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6662)
I/art:     at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118)
I/art:     at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2599)
I/art:     at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2707)
I/art:     at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
I/art:     at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1460)
I/art:     at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
I/art:     at void android.os.Looper.loop() (Looper.java:154)
I/art:     at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6077)
I/art:     at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
I/art:     at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:866)
I/art:     at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:756)
W/MediaPlayer: info/warning (701, 0)
I/OpenGLRenderer: Initialized EGL, version 1.4
D/OpenGLRenderer: Swap behavior 1
W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
D/OpenGLRenderer: Swap behavior 0
D/EGL_emulation: eglCreateContext: 0xa9305240: maj 2 min 0 rcv 2
D/EGL_emulation: eglMakeCurrent: 0xa9305240: ver 2 0 (tinfo 0xa9303520)
D/EGL_emulation: eglMakeCurrent: 0xa9305240: ver 2 0 (tinfo 0xa9303520)
E/MediaPlayer: error (1, -2147483648)
E/MediaPlayer: Error (1,-2147483648)

我的rtsp流配置： h264（基线），yuv420p（逐行扫描），704x576，15帧每秒，25 tbr，90k tbn，30 tbc

当我在Android 7.0上启动它时，它显示错误（1，-2147483648）。以前在Android 5上也不起作用，但我们将配置文件更改为Baseline，然后在任何地方都可以正常使用（甚至在Android 7.1上），但在Android 7.0上除外。我已经尝试过这里的一些解决方案，但没有任何帮助。我还尝试使用VLC库，它可以解决Android 7的问题，但它在apk中的体积约为80 MB，这对于我的应用来说太大了。

我认为问题可能在流配置中，但真的搞不清楚到底是什么...而且那个Android 7的情况对我来说似乎很奇怪，因为在官方信息中并没有什么特别之处，也许你知道是什么？

那么，您是否遇到过rtsp的类似问题？您知道如何正确配置Android的rtsp流吗？这个特定的Android 7版本可能会出什么问题？我可以尝试什么来使其工作？感谢任何帮助！

更新

通过使用ExoPlayer库，我使其正常运行了，但这花费了我一些时间，并且无论如何我的项目都变得更重（虽然没有VLC那么重）。我仍然不明白为什么默认的Android MediaPlayer不起作用，如果有解决方案，我一定会返回MediaPlayer代码，因为它比exoplayer简单多了。

1个回答
0
在你的（模块）build.gradle文件中，在dependencies {...}之后的末尾添加以下配置。
configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == "androidx") {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion "${targetSdk}.+"
            }
        }
    }
}
谢谢您的建议，但似乎没有改变任何事情... 仍然有相同的日志和错误。 - Yulmaso
"android.view.View$OnUnhandledKeyEventListener" 在 api28 中被添加，在调试模式下注入该类以忽略错误消息： { implementation "androidx.appcompat:appcompat:$appcompat_version" // 当 api<28 && debug==true 时注入类 debugImplementation 'com.github.DonaldDu:FixUnhandledEvent:1.0' } - K_mns
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