Question

我正在使用棒棒糖在xperia z2上进行开发。

我的应用程序记录了我们使用默认大小（1920 * 1080）进行记录，或者当我使用setVideoSize（1920,1080）手动设置时，如果我提供其他分辨率，则会失败，错误代码为-19。

任何帮助将不胜感激。感谢

这是我的代码

private boolean prepareVideoRecorder()
{
    mMediaRecorder = new MediaRecorder();
    // Step 1: Unlock and set camera to MediaRecorder
    mCamera.unlock();
    mMediaRecorder.setCamera(mCamera);
    // Step 2: Set sources
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    // Step 3: Set a CamcorderProfile (requires API Level 8 or higher)
    mMediaRecorder.setProfile(CamcorderProfile.get( CamcorderProfile.QUALITY_HIGH));
    // Step 4: Set output file
        outputUri = FileUtil.createOutputFile(Type.POST_QUESTION, Type.MEDIA_VIDEO); // custom methodthat returns Uri
    String path = new File(outputUri.getPath()).getAbsolutePath();
    mMediaRecorder.setOutputFile(path);
    // set video resolution
     mMediaRecorder.setVideoSize(1600, 900); //fail
    // Step 5: Set the preview output
    mMediaRecorder.setPreviewDisplay(mPreview.getHolder().getSurface());
    // Step 6: Prepare configured MediaRecorder
    try
    {
        mMediaRecorder.prepare();
    }
    catch (IllegalStateException e)
    {
        e.printStackTrace();
        releaseMediaRecorder();
        return false;
    }
    catch (IOException e)
    {
        releaseMediaRecorder();
        return false;
    }
    return true;
}

和我的logcat

07-04 19:01:34.656: E/MediaRecorder(5996): start failed: -19
07-04 19:01:34.656: D/AndroidRuntime(5996): Shutting down VM
07-04 19:01:34.656: E/AndroidRuntime(5996): FATAL EXCEPTION: main
07-04 19:01:34.656: E/AndroidRuntime(5996): Process: com.dwaik.question, PID: 5996
07-04 19:01:34.656: E/AndroidRuntime(5996): java.lang.RuntimeException: start failed.
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.media.MediaRecorder.start(Native Method)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at com.dwaik.question.fragments.CaptureVideoFragment.startRecording(CaptureVideoFragment.java:243)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at com.dwaik.question.fragments.CaptureVideoFragment.onClick(CaptureVideoFragment.java:404)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.view.View.performClick(View.java:4832)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.view.View$PerformClick.run(View.java:19839)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.os.Handler.handleCallback(Handler.java:739)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.os.Handler.dispatchMessage(Handler.java:95)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.os.Looper.loop(Looper.java:211)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at android.app.ActivityThread.main(ActivityThread.java:5321)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at java.lang.reflect.Method.invoke(Native Method)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at java.lang.reflect.Method.invoke(Method.java:372)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1016)
07-04 19:01:34.656: E/AndroidRuntime(5996):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:811)

Answer 1

CamcorderProfile.QUALITY_HIGHT已自动设置手机中的最高分辨率（http://developer.android.com/reference/android/media/CamcorderProfile.html）。

因此，手动设置分辨率可能会在MediaPlayer参数中产生一些不一致。

此外，您的手机可能没有您尝试设置的分辨率（1600x900）。您可以通过Camera.Parameters中的方法getSupportedVideoSizes（）获取可用的分辨率。

我的建议：要么使用CamcorderProfile（我更喜欢），要么手动设置。帧速率限制也可能因手机而异。

MediaVideoSize（）上的MediaRecorder启动失败

1 个答案: