Android的MediaRecorder - ＆QUOT;启动失败：-19＆QUOT;

问题描述

我试图建立在Android录像机，我已经prepared我的code这应该是工作 - 但我不断地得到一个错误信息启动失败：-19

I'm trying to create a video recorder on Android, and I've prepared my code which is supposed to be working - but I constantly get an error message start failed: -19.

下面是我的code：

public boolean startRecording() {
    try {
        camera.unlock();
        mediaRecorder = new MediaRecorder();
        mediaRecorder.setOnErrorListener(new MediaRecorder.OnErrorListener() {

                @Override
                public void onError(MediaRecorder mr, int what, int extra) {
                Log.i(TAG, "Error");
            }
        });

        mediaRecorder.setCamera(camera);
        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
        Log.i(TAG, "a");

        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
        mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);
        Log.i(TAG, "b");

        mediaRecorder.setMaxDuration(maxDurationInMs); // set to 20000

        String uniqueOutFile = OUTPUT_FILE + System.currentTimeMillis() + ".3gp";
        File outFile = new File(uniqueOutFile);
        if (outFile.exists()) {
            outFile.delete();
        }
        mediaRecorder.setOutputFile(uniqueOutFile);
        mediaRecorder.setVideoFrameRate(videoFramesPerSecond); // set to 20
        mediaRecorder.setVideoSize(sView.getWidth(), sView.getHeight());
        Log.i(TAG, "c");

        mediaRecorder.setPreviewDisplay(holder.getSurface());
        mediaRecorder.setMaxFileSize(maxFileSizeInBytes); // set to 50000
        mediaRecorder.prepare();
        Log.i(TAG, "d");

        mediaRecorder.start();
        Log.i(TAG, "e");

        return true;
        } catch (IllegalStateException e) {
            Log.i(TAG, "f");
            Log.e(TAG, e.getMessage());
            e.printStackTrace();
            camera.lock();
            return false;
        } catch (IOException e) {
            Log.i(TAG, "g");
            Log.e(TAG, e.getMessage());
            e.printStackTrace();
            camera.lock();
            return false;
        } catch (RuntimeException e) {
            Log.i(TAG, "h");
            Log.e(TAG, e.getMessage());
            camera.lock();
            return false;
        }
    }

所有（从A到D）的调试日志打印日志，因此它似乎是高达 mediaRecorder。prepare所有步骤（）正确完成。然后抓住一个的RuntimeException 有消息启动失败：-19 。有一个类似question,但是，这并不解决我的问题。

All the debug logs (from "a" through "d") are printed in log, so it seems that all the steps upto mediaRecorder.prepare() are properly done. Then it catches a RuntimeException with message start failed: -19. There is a similar question, but that doesn't solve my problem.

有没有其他原因让这样的错误？

Is there any other reason to get such an error?

推荐答案

刚刚发现的BUG，在这一行：

Just found out the bug, in this line:

mediaRecorder.setVideoSize(sView.getWidth(), sView.getHeight());

注释掉这一行之后，code完美运行！

after commenting out this line, the code runs perfectly!

这篇关于Android的MediaRecorder - ＆QUOT;启动失败：-19＆QUOT;的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！