tris790 / pac

PAC - Portals Across Computers

Prerequisite

• CMake
• Ninja or Visual Studio 2019
• g++ or Visual Studio 2019

Dependencies

Windows & Linux

• Downloaded, built, linked by CMake, view dependencies/CMakeLists.txt
• Gstreamer dev + runtime (gstreamer-good, gstreamer-bad)

Linux

• libxtst
• libxtst-dev

Building

Client and Server

cd build

Debug

Windows

cmake -G "Visual Studio 16 2019" -A x64 -S ../ -B "build64"

cmake --build "build64" --config Debug

Linux

cmake -G "Ninja" -S ../ -B "build64/Debug" -D CMAKE_BUILD_TYPE=Debug

cmake --build "build64/Debug"

Release

Windows

cmake -G "Visual Studio 16 2019" -A x64 -S ../ -B "build64"

cmake --build "build64" --config Release

Linux:

cmake -G "Ninja" -S ../ -B "build64/Release" -D CMAKE_BUILD_TYPE=Release

cmake --build "build64/Release"

Gstreamer screen capture

• Windows: gst-launch-1.0 dxgiscreencapsrc cursor=true ! video/x-raw,framerate=60/1 ! videoscale method=0 ! videoconvert ! autovideosink sync=false

• Linux: gst-launch-1.0 ximagesrc startx=0 starty=0 use-damage=0 xid=83886082 ! video/x-raw,framerate=60/1 ! videoscale method=0 ! video/x-raw,width=1920,height=1080 ! autovideosink sync=false

• h264 recorder: gst-launch-1.0.exe dx9screencapsrc ! video/x-raw,framerate=60/1 ! videoconvert ! nvh264enc preset=low-latency-hp max-bitrate=2000 ! queue ! rtph264pay ! udpsink host=127.0.0.1 port=9996

• h264 receiver: gst-launch-1.0.exe udpsrc port=9996 caps="application/x-rtp, media=video, clock-rate=90000, encoding-name=H264, payload=96" ! rtph264depay ! queue ! decodebin ! videoconvert ! autovideosink

Demo

Note that the video was encoded with a very low bit rate. The raw capture with PAC is in much better quality.

THPS4_Pac_Demo.mp4

FAQ

Q: Pac-server cannot record / find monitor X
A: Your are most likely using a hybrid graphics system (integrated gpu + external gpu). You need to set the Graphics performance preference to "low power (integrated gpu)" for pac-server.exe