我试图从Android相机捕获原始视频数据。 我使用的是Timer + TimerTask模式。
long lastT = System.currentTimeMillis();
long curT = System.currentTimeMillis();
timertask = new TimerTask() {
@Override
public void run() {
curT = System.currentTimeMillis();
Log.d(TAG_VIDEO,">>\t" + (curT - lastT) + "\t::\t");// + data.length);
lastT = curT;
}
};
timer.scheduleAtFixedRate(timertask, 0L, 1000L/15L);
但LogCat称内胎面每3-170毫秒发射一次。哦，为什么？怎么解决？ 其他方法（Handler，Thread）给出相同的结果。 日志：
11-05 17:54:27.550: >> 67 ::
11-05 17:54:27.620: >> 65 ::
11-05 17:54:27.685: >> 66 ::
11-05 17:54:27.750: >> 66 ::
11-05 17:54:27.815: >> 66 ::
11-05 17:54:27.880: >> 67 ::
11-05 17:54:27.945: >> 65 ::
11-05 17:54:28.015: >> 66 ::
11-05 17:54:28.080: >> 66 ::
11-05 17:54:28.145: >> 66 ::
11-05 17:54:28.250: >> 66 ::
11-05 17:54:28.280: >> 68 ::
11-05 17:54:28.450: >> 168 ::
11-05 17:54:28.450: >> 3 ::
11-05 17:54:28.475: >> 25 ::
11-05 17:54:28.550: >> 77 ::
11-05 17:54:28.650: >> 95 ::
11-05 17:54:28.675: >> 26 ::
11-05 17:54:28.740: >> 66 ::
11-05 17:54:28.805: >> 66 ::
11-05 17:54:28.930: >> 76 ::
11-05 17:54:28.940: >> 57 ::
11-05 17:54:29.125: >> 95 ::
11-05 17:54:29.130: >> 95 ::
11-05 17:54:29.160: >> 30 ::
11-05 17:54:29.280: >> 69 ::
11-05 17:54:29.280: >> 51 ::
11-05 17:54:29.380: >> 103 ::
11-05 17:54:29.470: >> 48 ::
11-05 17:54:29.470: >> 41 ::
11-05 17:54:29.575: >> 105 ::
11-05 17:54:29.670: >> 44 ::
11-05 17:54:29.670: >> 50 ::
11-05 17:54:29.765: >> 91 ::
11-05 17:54:29.855: >> 49 ::
11-05 17:54:29.865: >> 54 ::
11-05 17:54:29.950: >> 87 ::
11-05 17:54:30.005: >> 52 ::
11-05 17:54:30.085: >> 79 ::
11-05 17:54:30.130: >> 46 ::
11-05 17:54:30.280: >> 153 ::
11-05 17:54:30.280: >> 2 ::
11-05 17:54:30.435: >> 66 ::
11-05 17:54:30.525: >> 88 ::
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11-05 17:54:30.525: >> 0 ::
11-05 17:54:30.600: >> 63 ::
11-05 17:54:30.730: >> 79 ::
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11-05 17:54:30.835: >> 56 ::
11-05 17:54:30.940: >> 106 ::
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11-05 17:54:31.055: >> 67 ::
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11-05 17:54:31.210: >> 148 ::
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11-05 17:54:31.335: >> 65 ::
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11-05 17:54:31.675: >> 69 ::
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11-05 17:54:32.045: >> 54 ::
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11-05 17:54:32.200: >> 102 ::
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11-05 17:54:32.550: >> 106 ::
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11-05 17:54:32.760: >> 64 ::
11-05 17:54:32.765: >> 61 ::
11-05 17:54:32.865: >> 91 ::
11-05 17:54:32.980: >> 58 ::
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11-05 17:54:33.100: >> 60 ::
11-05 17:54:33.100: >> 59 ::
11-05 17:54:33.235: >> 127 ::
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11-05 17:54:33.340: >> 106 ::
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11-05 17:54:33.535: >> 103 ::
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11-05 17:54:34.220: >> 76 ::
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11-05 17:54:34.370: >> 112 ::
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11-05 17:54:46.500: >> 0 ::
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11-05 17:54:47.025: >> 51 ::
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11-05 17:54:47.240: >> 45 ::
11-05 17:54:47.240: >> 70 ::
11-05 17:54:47.360: >> 47 ::
11-05 17:54:47.450: >> 115 ::
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11-05 17:54:47.540: >> 47 ::
11-05 17:54:47.550: >> 49 ::
11-05 17:54:47.625: >> 77 ::
11-05 17:54:47.710: >> 84 ::
11-05 17:54:47.800: >> 42 ::
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11-05 17:54:47.895: >> 78 ::
11-05 17:54:47.970: >> 78 ::
11-05 17:54:48.070: >> 44 ::
11-05 17:54:48.155: >> 91 ::
11-05 17:54:48.155: >> 49 ::
11-05 17:54:48.260: >> 60 ::
11-05 17:54:48.470: >> 85 ::
11-05 17:54:48.470: >> 170 ::
11-05 17:54:48.470: >> 0 ::
11-05 17:54:48.570: >> 45 ::
11-05 17:54:48.570: >> 59 ::
11-05 17:54:48.605: >> 33 ::
11-05 17:54:48.735: >> 69 ::
11-05 17:54:48.740: >> 64 ::
答案 0 :(得分：0)
我认为问题在于您正在尝试使用Java和Android进行实时图像处理。 Java Runtime有一个垃圾收集机制，可以在收集内存中未引用的对象时暂停应用程序线程。因此，您看到的变化（抖动）是由于正在运行的垃圾收集线程。