Question

我的媒体录制器录制视频后录制我正在预览我的视频（很好）。现在将此视频上传到我当地的http服务器上。并最终从服务器获取此视频，但它显示无法播放视频。

任何有关实际错误的建议...... Thanx寻求帮助。

MediaRecorder

this.mediaRecorder = new MediaRecorder();
this.mediaRecorder.setCamera(this.camera);
camera.unlock();
this.mediaRecorder.setCamera(camera);
this.mediaRecorder.setOrientationHint(90);
this.mediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
this.mediaRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
CamcorderProfile camcorderProfile_HQ = CamcorderProfile.get(CamcorderProfile.QUALITY_480P);
this.mediaRecorder.setProfile(camcorderProfile_HQ);
this.mediaRecorder.setOutputFile(this.initFile().getAbsolutePath());
 this.mediaRecorder.setMaxDuration(60000); // Set max duration 60 sec.
 this.mediaRecorder.setMaxFileSize(5000000); 


 this.mediaRecorder.setPreviewDisplay(this.cameraPreview.getHolder().getSurface());


  try {
    this.mediaRecorder.prepare();
    // start the actual recording
    // throws IllegalStateException if not prepared
    this.mediaRecorder.start();
    Toast.makeText(this, R.string.recording, Toast.LENGTH_SHORT).show();
    // enable the stop button by indicating that we are recording
    this.toggleButtons(true);
} catch (Exception e) {
    Log.wtf(TAG, "Failed to prepare MediaRecorder", e);
    Toast.makeText(this, R.string.cannot_record, Toast.LENGTH_SHORT).show();
    this.releaseMediaRecorder();
}

视频观看

   Uri uri = Uri.parse("/data/data/com.example.mediarecorder/files/"+  messageList.get(position)); //do not add any extension

            video.setVideoURI(uri);
            video.requestFocus(); 
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
            video.setKeepScreenOn(true);
            System.out.println(uri +  " "+ uri.getEncodedAuthority()+  " "+ uri.decode(data_type) + " "+ uri.getUserInfo() + " "+ uri.describeContents());
            video.start();

Answer 1

您无法通过videoview播放内部存储中的视频，因为该文件没有全局读取权限。您必须使用surfaceView和媒体播放器类创建自定义视频播放器。然后你必须创建你需要播放的文件的文件描述符，并将其传递给mediaPlayer.setDataSource（）：

FileInputStream inputStream = new FileInputStream(videoPath); 
//assume videoPath =   getFilesDir().getAbsolutePath()) + File.separator + "Video.mp4" 
mp.setDataSource(inputStream.getFD());
        mp.prepareAsync();
        try {
            mp.setOnPreparedListener(new OnPreparedListener() {

                @Override
                public void onPrepared(MediaPlayer mplayer) {
                    if (mp != null) {
                        mp.start();
                    }
                }
            });

从服务器下载后无法播放视频

1 个答案: