經過很多挫折和迭代之後,我很高興地報告說可以在Glass XE12上使用MediaRecorder。下面的代碼對我的作品在我的玻璃1版運行XE12:
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setCamera(mCamera);
mMediaRecorder.setPreviewDisplay(preview.getHolder().getSurface());
mCamera.unlock();
// Step 2: Set sources
mMediaRecorder.setOnErrorListener(new android.media.MediaRecorder.OnErrorListener() {
public void onError(MediaRecorder mediarecorder1, int k, int i1)
{
Log.e(TAG,String.format("Media Recorder error: k=%d, i1=%d", k, i1));
}
});
mMediaRecorder.setVideoSource(0);
mMediaRecorder.setAudioSource(0);
mMediaRecorder.setOutputFormat(2);
mMediaRecorder.setVideoEncoder(2);
mMediaRecorder.setVideoEncodingBitRate(0x4c4b40);
mMediaRecorder.setVideoFrameRate(30);
mMediaRecorder.setVideoSize(1280, 720);
mMediaRecorder.setAudioChannels(2);
mMediaRecorder.setAudioEncoder(3);
mMediaRecorder.setAudioEncodingBitRate(0x17700);
mMediaRecorder.setAudioSamplingRate(44100);
mMediaRecorder.setMaxDuration(0);
mMediaRecorder.setOutputFile(getOutputMediaFile(MEDIA_TYPE_VIDEO).toString());
mMediaRecorder.setMaxDuration(-1);
// Step 5: Set the preview output
// Step 6: Prepare configured MediaRecorder
try {
mMediaRecorder.prepare();
mMediaRecorder.start();
} catch (IllegalStateException e) {
Log.d(TAG, "IllegalStateException preparing MediaRecorder: " + e.getMessage());
releaseMediaRecorder();
return false;
} catch (IOException e) {
Log.d(TAG, "IOException preparing MediaRecorder: " + e.getMessage());
releaseMediaRecorder();
return false;
} catch (Exception e) {
Log.d(TAG, "Unknown exception preparing MediaRecorder: " + e.getMessage());
releaseMediaRecorder();
return false;
}
不幸的是,這種情況並非如此。我可以成功啓動應用程序(它是一個活動,而不是活卡),並可以在Surface上看到相機的預覽。只要我嘗試使用MediaRecorder錄製視頻,就會出現問題。 謝謝您的回覆! – Mike