Android拓展系列(9)--Android视频录制screenrecord命令

$ 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 (if supported), 1280x720 if not.  For best results,
    use a 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 recording time, in seconds.  Default / maximum is 180.
--rotate
    Rotate the output 90 degrees.
--verbose
    Display interesting information on stdout.
--help
    Show this message.
 
Recording continues until Ctrl-C is hit or the time limit is reached.

// 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

// 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

// 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

// 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-rate 8000000 /sdcard/FILENAME.mp4

// 旋转90度
$adb shell screenrecord --rotate /sdcard/FILENAME.mp4