解决Android MediaRecorder录制视频过短问题
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2021-01-20
10:14:00
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解决解决Android MediaRecorder录制视频过短问题录制视频过短问题
具体表现：具体表现：
调用MediaRecorder的start()与stop()间隔不能小于1秒(有时候大于1秒也崩)，否则必崩。
错误信息：错误信息：
java.lang.RuntimeException: stop failed.
at android.media.MediaRecorder.stop(Native Method)
解决办法：解决办法：
在stop以前调用setOnErrorListener(null);就行了！
相关代码：
/** 开始录制 */
@Override
public MediaPart startRecord() {
if (mMediaObject != null && mSurfaceHolder != null && !mRecording) {
MediaPart result = mMediaObject.buildMediaPart(mCameraId, ".mp4");
try {
if (mMediaRecorder == null) {
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setOnErrorListener(this);
} else {
mMediaRecorder.reset();
}
// Step 1: Unlock and set camera to MediaRecorder
camera.unlock();
mMediaRecorder.setCamera(camera);
mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
// Step 2: Set sources
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//before setOutputFormat()
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//before setOutputFormat()
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
//设置视频输出的格式和编码
CamcorderProfile mProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_480P);
// mMediaRecorder.setProfile(mProfile);
mMediaRecorder.setVideoSize(640, 480);//after setVideoSource(),after setOutFormat()
mMediaRecorder.setAudioEncodingBitRate(44100);
if (mProfile.videoBitRate > 2 * 1024 * 1024)
mMediaRecorder.setVideoEncodingBitRate(2 * 1024 * 1024);
else
mMediaRecorder.setVideoEncodingBitRate(mProfile.videoBitRate);
mMediaRecorder.setVideoFrameRate(mProfile.videoFrameRate);//after setVideoSource(),after setOutFormat()
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);//after setOutputFormat()
mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//after setOutputFormat()
//mMediaRecorder.setVideoEncodingBitRate(800);
// Step 4: Set output file
mMediaRecorder.setOutputFile(result.mediaPath);
// Step 5: Set the preview output
// mMediaRecorder.setOrientationHint(90);//加了HTC的手机会有问题
Log.e("Yixia", "OutputFile:" + result.mediaPath);
mMediaRecorder.prepare();
mMediaRecorder.start();
mRecording = true;
return result;
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