为了支持android screen capture input
- 添加了 input_screencap plugin
- 添加Android.bp (目前只用到了 input_file input_screencap output_http mjpeg_server)
- Android 不支持 pthread_cancel API, 相关报错自行处理(简单粗暴是直接注释掉)
V1 版本capture screen + encode + input_screencap work 都是在一个线程里边做的. 存在卡顿问题。
V2 版本修改 input_screencap 支持多线程
V3 加入 bench test
TODO
目前多线程等待采用的是简单的 sleep, 后续加入wait-cond机制
make input_screencap output_http mjpeg_server -j8
adb wait-for-device; adb root; adb remount adb push out/target/product/yebisu/system/lib64/input_screencap.so /system/lib64/ adb push out/target/product/yebisu/system/lib64/input_screencap.so /system/lib64/ adb push out/target/product/yebisu/system/lib64/output_http.so /system/lib64/ adb push out/target/product/yebisu/system/bin/mjpeg_server /system/bin/
手机端启动服务 mjpeg_server -i "/system/lib64/input_screencap.so -d 100" -o "/system/lib64/output_http.so" mjpeg_server -i "/system/lib64/input_screencap.so -d 10" -o "/system/lib64/output_http.so"
浏览器访问 http://192.168.31.43:8080/?action=stream
查看性能的命令(先将服务运行时命令行输出的log保存到 performance.log 然后执行下面命令) cat performance.log | grep -i t_delay_cap | cut -d " " -f 3 | sort
注意: ANDROID 开热点, pc 连接到 ANDROID ap
This is a fork of http://sourceforge.net/projects/mjpg-streamer/ with added support for the Raspberry Pi camera via the input_raspicam plugin.
mjpg-streamer is a command line application that copies JPEG frames from one or more input plugins to multiple output plugins. It can be used to stream JPEG files over an IP-based network from a webcam to various types of viewers such as Chrome, Firefox, Cambozola, VLC, mplayer, and other software capable of receiving MJPG streams.
It was originally written for embedded devices with very limited resources in terms of RAM and CPU. Its predecessor "uvc_streamer" was created because Linux-UVC compatible cameras directly produce JPEG-data, allowing fast and perfomant M-JPEG streams even from an embedded device running OpenWRT. The input module "input_uvc.so" captures such JPG frames from a connected webcam. mjpg-streamer now supports a variety of different input devices.
WARNING: mjpg-streamer should not be used on untrusted networks! By default, anyone with access to the network that mjpg-streamer is running on will be able to access it.
Input plugins:
- input_file
- input_http
- input_opencv (documentation)
- input_ptp2
- input_raspicam (documentation)
- input_uvc (documentation)
Output plugins:
- output_file
- output_http (documentation)
- output_rtsp
- output_udp
- output_viewer (documentation)
You must have cmake installed. You will also probably want to have a development version of libjpeg installed. I used libjpeg62-dev.
This will build and install all plugins that can be compiled.
cd mjpg-streamer-experimental
make
sudo make install
By default, everything will be compiled in "release" mode. If you wish to compile with debugging symbols enabled, you can do this:
cd mjpg-streamer-experimental
make CMAKE_BUILD_TYPE=Debug
sudo make install
There are options available to enable/disable plugins, setup options, etc. This shows the basic steps.
cd mjpg-streamer-experimental
mkdir _build
cd _build
cmake ..
make
sudo make install
From the mjpeg streamer experimental folder:
export LD_LIBRARY_PATH=.
./mjpg_streamer -o "output_http.so -w ./www" -i "input_raspicam.so"
See README.md or the individual plugin's documentation for more details.
mjpg-streamer was originally created by Tom Stöveken, and has received improvements from many collaborators since then.
mjpg-streamer is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.