如何通过亚行捕获屏幕尽可能快？ [英] How to capture the screen as fast as possible through adb?

问题描述

最近，我写了一个PC客户端可实时显示和控制我的Andr​​oid手机的屏幕使用的亚洲开发银行。我用猴子来控制设备，它工作正常。问题是如何抢在手机屏幕和流畅显示。

我想出了是不断抢帧缓冲的第一个解决方案到亚洲开发银行（如DDMS的截屏功能）。现在，当我做到这一点，表现相当不能接受的。从帧缓冲拍摄的帧速率可低至5每秒（帧大小为800 * 480）。我的程序看起来像它打嗝时，我滑了电话。

我的程序是用Java编写的 ddmslib 抢帧缓冲。

补充：
我发现它更慢的编码生帧缓冲数据转换成巴纽格式，否则这将是一个快速的方式来发送一个COM preSS原始图像。

我怎样才能提高捕捉画面平稳水平的速度？

解决方案

 亚行外壳screencap -p | perl的-pe的/ \ X0D \ X0A / \ X0A / G'＆GT; screen.png
 

来源：

<一个href="http://blog.shvetsov.com/2013/02/grab-android-screenshot-to-computer-via.html">http://blog.shvetsov.com/2013/02/grab-android-screenshot-to-computer-via.html

Recently, I wrote a PC client which can display and control my android phone screen in real-time using adb. I use the monkey to control the device and it works fine. The problem is how to grab the phone screen and display it smoothly.

The first solution I have come up with is to continually grab the framebuffer through adb (like DDMS's screen capture function). Now when I do it, the performance is quite unacceptable. The frame rate captured from framebuffer is as low as 5 per second (the frame size is 800 * 480). My program looks like its hiccuping when I slide on the phone.

My program is written in java using ddmslib to grab framebuffer.

add:
I found it much slow to encoding the raw framebuffer data into .png format, otherwise this will be a fast way to transmit a compress raw image.

How can I improve the speed of capturing the screen to a smooth level?

解决方案

adb shell screencap -p | perl -pe 's/\x0D\x0A/\x0A/g' > screen.png

Source:

http://blog.shvetsov.com/2013/02/grab-android-screenshot-to-computer-via.html

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