|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
private void start() {
if (isRecording)
{
// 停止录像并释放myFrontFacingCamera
myVideoRecorder.stop();
releaseVideoRecorder();
/*myFrontFacingCamera.lock();*/ // 从Android4.0开始，这个方法由系统自动调用
// TODO：通知用户录像已停止，设置停止按钮为不可用
isRecording = false;
} else {
// 初始化myFrontFacingCamera
if (prepareVideoRecorder()) {
// myFrontFacingCamera已可用并解锁，VideoRecorder已就绪
// 现在可以开始录像
/*myFrontFacingCamera.startPreview();*/
myVideoRecorder.start();
// TODO:通知用户录像已开始，设置开始按钮为不可用
isRecording = true;
} else {
// 准备未能完成，释放myFrontFacingCamera
releaseVideoRecorder();
// TODO:通知用户
}
}
}
private boolean prepareVideoRecorder() {
/*myFrontFacingCamera = getFrontFacingCamera();*/ // 在onCreate()中已经创建了myFrontFacingCamera对象
myVideoRecorder = new MediaRecorder();
// 解锁并将摄像头指向myVideoRecorder
/*myFrontFacingCamera.unlock();*/ //在Android4.0之后这个方法由系统自动调用
myVideoRecorder.setCamera(myFrontFacingCamera);
// TODO:指定源，如果声音源不行，就用麦克作为声音源
myVideoRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
myVideoRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
// 指定CamcorderProfile（需要API Level 8以上版本），这里的Profile包括了输出格式，声音编码类型和视频编码类型
myVideoRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_LOW));
myVideoRecorder.setVideoSize(100, 100);
// 指定输出文件
myVideoRecorder.setOutputFile(getOutputMediaFile(MEDIA_TYPE_VIDEO).toString());
// 指定预览输出
myVideoRecorder.setPreviewDisplay(myVideoPreview.getHolder().getSurface());
// 根据以上配置准备myVideoRecorder
try {
myVideoRecorder.prepare();
} catch (IllegalStateException e) {
Log.d("VideoActivity:prepareVideoRecorder", "准备myVideoRecorder时发生IllegalStateException错误" + "\n" + e.getMessage());
releaseVideoRecorder();
return false;
} catch (IOException e) {
Log.d("VideoActivity:prepareVideoRecorder", "准备myVideoRecorder时发生IOException错误" + "\n" + e.getMessage());
releaseVideoRecorder();
return false;
}
return true;
}
|
解决方案：
将 myVideoRecorder.setVideoSize(100, 100); 这句话注释掉就行了