First, view the help command, parameter--help
D:\>adb shell screenrecord --helpusage: screenrecord [options] <filename >android screenrecord v1.2. 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 bits per second. value may be specified as bits or megabits, e.g. ' 4000000 ' is equivalent to ' 4M ' . default 4mbps.--bugrePort add additional information, such as a timestamp overlay, that is helpful in videos captured to illustrate bugs.--time-limit TIME Set the maximum Recording time, in seconds. default / maximum is 180.--verbose Display interesting information on stdout.--help show this message. Recording continues until ctrl-c is hit or the time limit is reached.
Start recording command:
ADB Shell Screenrecord/sdcard/demo.mp4
Note: Recorded phone screen, video format mp4, stored in the phone SD card, the default recording time is 180s.
Screenrecord is a shell command that supports Android4.4 (API level 19) and supports video formats: MP4
2. Specify the video resolution size, parameter--size
adb shell Screenrecord--size 1280*720/sdcard/demo.mp4
Description: Recorded video, resolution 1280*720, if you do not specify the default use of the phone's resolution, for best results, use the Advanced video encoding (AVC) supported size on the device
3. Specify the bit rate of the video, parameter--bit-rate
adb shell Screenrecord--bit-rate 6000000/sdcard/demo.mp4
Description: Specifies that the video has a bit rate of 6Mbps, and if not specified, the default is 4Mbps. You can increase the bitrate to improve the video quality or reduce the bit rate in order to make the file smaller
4. Rotation 90 degrees, parameter:--rotate
ADB Shell Screenrecord--rotate/sdcard/demo.mp4
Description: This feature is experimental, experiments on NEXUS6 devices, recorded video playback is also rotated 90 degrees play, experience is not very friendly.
5. Export Video:
ADB pull/sdcard/demo.mp4 d:/
Description: The location of the exported video is under the D-Packing directory with the name Demo.mp4
Second, the use of recording function in Ddms
1. Use DDMS on the command line to open the Android DDMS (monitor.bat) tool
2. Open the debug mode of Android phone (Android4.4 and above ), use USB to connect the phone, DDMS interface name appears in the phone model and online status
3.device-->screen Record, pop-up Settings page, set video bitrate, and video resolution and storage path, click OK
4. Operate the mobile phone test scene, after the completion, click the Cannel button, wait a few seconds, will pop up the prompt to save the success.
"ADB command line" adb Shell screenrecord command-line usage instructions