Android MediaRecorder准备失败:-牛轧糖2147483648
我正在写一个应用程序,通过表面从摄像机录制视频 以下代码用于准备MediaRecorderAndroid MediaRecorder准备失败:-牛轧糖2147483648,android,mediarecorder,android-camera2,Android,Mediarecorder,Android Camera2,我正在写一个应用程序,通过表面从摄像机录制视频 以下代码用于准备MediaRecorder MediaRecorder mediaRecorder; mediaRecorder = new MediaRecorder(); mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE); mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
MediaRecorder mediaRecorder;
mediaRecorder = new MediaRecorder();
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setOutputFile(videoFilename);
mediaRecorder.setVideoEncodingBitRate(1000000);
mediaRecorder.setVideoFrameRate(30);
mediaRecorder.setVideoSize(videoSize.getWidth(), videoSize.getHeight());
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
try {
mediaRecorder.prepare();
} catch (IOException e) {
e.printStackTrace();
}
像这样获取outfile(videoFilename)
File defaultExternalFolder = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
File videoFolder = new File(defaultExternalFolder, "My-Vids");
if (!videoFolder.exists()) {
videoFolder.mkdir();
}
String timestemp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String prepend = "MyVid_" + timestemp + "_";
File videoFile = File.createTempFile(prepend, ".mp4", videoFolder);
videoFilename = videoFile.getAbsolutePath();
return videoFile;
videoSize只是一个对象大小类
当我尝试启动MediaRecorder时,我得到java.io.IOException:prepare失败。
奇怪的是,它只在牛轧糖操作系统中崩溃,在其他设备中工作正常 我猜您正在emulator上运行此代码。实际上,emulator不支持MediaRecorder。 见: 注意:目前,MediaRecorder在模拟器上不工作 好的,您可以通过comment-Mic-config测试它,您将看到它的工作原理
MediaRecorder mediaRecorder;
mediaRecorder = new MediaRecorder();
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
//mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setOutputFile(videoFilename);
mediaRecorder.setVideoEncodingBitRate(1000000);
mediaRecorder.setVideoFrameRate(30);
mediaRecorder.setVideoSize(videoSize.getWidth(), videoSize.getHeight());
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
//mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
try {
mediaRecorder.prepare();
} catch (IOException e) {
e.printStackTrace();
}
我已经在安卓7.1(三星Galaxy S8)上测试了你的代码及其工作原理。仅在emulator上出现问题。对于我来说,MediaRecorder-2147483648错误 依赖于设备和操作系统级别。通常,录音机 将启动1次,随后的启动将失败。 修复方法是添加对MediaRecorder.release()的调用
。。。
试一试{
录音机键入_MR.stop();
audioRecorderType_MR.release();//您找到解决方案了吗?我有完全相同的问题。它只在牛轧糖上失效。不,我还没有找到任何解决方案。是的,这就是问题所在,但它在三星手机上仍然不起作用。特别是对于正面摄像头。
...
try {
audioRecorderType_MR.stop();
audioRecorderType_MR.release(); // <<-- ADD THIS LINE
} catch (Exception e) {
J42CallerId.printStackTrace(new J42ProgramCheck("J42VM0072E:", e));
}
audioRecorderType_MR = null;
...