android shell命令screenrecord和uptime



1.使用uptime查看开机时间

130|shell@HWPLK:/ $ uptime
up time: 00:12:32, idle time: 01:28:59, sleep time: 00:00:00
2.使用screenrecord录制屏幕

$ adb shell screenrecord --help

Usage: screenrecord [options] <filename>

 

Records the device's display to a .mp4 file.

 

Options:

--size WIDTHxHEIGHT

    Set the video size, e.g."1280x720".  Default is the device's main

    display resolution (ifsupported), 1280x720 ifnot.  For best results,

    usea size supported by the AVC encoder.

--bit-rate RATE

    Set the video bit rate, in megabits per second.  Default 4Mbps.

--time-limit TIME

    Set the maximum recordingtime, in seconds.  Default / maximum is 180.

--rotate

    Rotate the output 90 degrees.

--verbose

    Display interesting information on stdout.

--help

    Show this message.

 

Recording continuesuntil Ctrl-C is hit or thetime limit is reached.

 

screenrecord使用举例
(1). 基本使用

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// 录制默认分辨率，默认4Mbps，默认180s的视频，保存到sdcard上名为FILENAME.mp4

$adb shell screenrecord /sdcard/FILENAME.mp4

(2). 指定分辨率(参数：--size)

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// 分辨率为112x112,建议不要指定分辨率，使用默认分辨率效果最佳

$adb shell screenrecord --size 112x112 /sdcard/FILENAME.mp4

注意，分辨率不是完全可以随意定制的，比如在我手机上录制100x100的会提示错误：

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// 100x100不支持，建议设为112x112

$adb shell screenrecord --size 100x100 /sdcard/FILENAME.mp4

The max width/height supported by codec is 1920x1088

100x100 is not supported by codec, suggest to set it as 112x112

(3). 指定比特率(参数：--bit-rate)

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// 设置比特率为8Mbps，比特率越大，文件越大，画面越清晰

$adb shell screenrecord --bit-rate8000000 /sdcard/FILENAME.mp4

(4). 旋转(参数：--rotate)

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// 旋转90度

$adb shell screenrecord --rotate /sdcard/FILENAME.mp3