Android 7 媒体播放器错误 (1,-2147483648)

标签 android android-mediaplayer android-videoview rtsp android-7.0-nougat

我正在尝试用 RTSP 中的视频流制作一个屏幕。我将 MediaPlayer 与 SurfaceView 一起使用，但我也尝试使用 VideoView，但在 Android 7 (sdk 24) 上都不起作用，在其他版本上我的代码运行良好。

代码如下:

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 (Baseline), yuv420p(progressive), 704x576, 15 fps, 25 tbr, 90k tbn, 30 tbc

当我在 android 7.0 上启动它时，它显示错误 (1,-2147483648)。以前它也不适用于 android 5，但我们将配置文件更改为 Baseline，除 android 7.0 外，其他地方(甚至在 Android 7.1 上)一切正常。我尝试了 there 中的一些解决方案，但没有任何帮助。我也尝试过使用 VLC lib 并修复了 android 7 问题，但它在 apk 中的重量大约为 80 mb，这对我的应用来说太多了。

我认为问题出在流配置中的某个地方，但真的无法弄清楚它到底是什么...而且 android 7 的情况对我来说有点奇怪，因为 official info 中的 android 7 没有什么特别之处，也许你知道它是什么？

那么你有没有遇到过类似的rtsp问题？你知道如何以正确的方式为 android 配置 rtsp 流吗？那个确切的 Android 7 版本可能有什么问题？我可以尝试使其工作吗？任何帮助表示赞赏!

更新

我通过使用 ExoPlayer lib 使它工作，但这花了我一些时间，而且无论如何我的项目增加了重量(虽然没有 vlc 那么多)。我仍然不明白为什么默认的 Android MediaPlayer 不起作用，如果出现解决方案，我肯定会返回 mediaplayer 代码，因为它比 exoplayer 简单得多。

最佳答案

在您的(模块)build.gradle 文件中，将以下 conf 添加到 dependencies {...}

之后 
configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == "androidx") {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion "${targetSdk}.+"
            }
        }
    }
}

关于Android 7 媒体播放器错误 (1,-2147483648)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/64585197/

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