MediaPipe_Usage

$ git clone https://github.com/google/mediapipe.git

# Change directory into MediaPipe root directory
$ cd mediapipe

#install Bazel
#link https://blog.csdn.net/liudongdong19

#install opencv and ffmpeg
sudo apt-get install libopencv-core-dev libopencv-highgui-dev \libopencv-calib3d-dev libopencv-features2d-dev \libopencv-imgproc-dev libopencv-video-dev

# Requires a GPU with EGL driver support.
# Can use mesa GPU libraries for desktop, (or Nvidia/AMD equivalent).
sudo apt-get install mesa-common-dev libegl1-mesa-dev libgles2-mesa-dev

# To compile with GPU support, replace
--define MEDIAPIPE_DISABLE_GPU=1
# with
--copt -DMESA_EGL_NO_X11_HEADERS --copt -DEGL_NO_X11
          
$ export GLOG_logtostderr=1

# if you are running on Linux desktop with CPU only
$ bazel run --define MEDIAPIPE_DISABLE_GPU=1 \
    mediapipe/examples/desktop/hello_world:hello_world

# If you are running on Linux desktop with GPU support enabled (via mesa drivers)
$ bazel run --copt -DMESA_EGL_NO_X11_HEADERS --copt -DEGL_NO_X11 \
    mediapipe/examples/desktop/hello_world:hello_world

#build
bazel build -c opt --define MEDIAPIPE_DISABLE_GPU=1 mediapipe/examples/desktop/hand_tracking:hand_tracking_cpu

#run
GLOG_logtostderr=1 
bazel-bin/mediapipe/examples/desktop/hand_tracking/hand_tracking_cpu --calculator_graph_config_file = mediapipe/graphs/hand_tracking/hand_tracking_desktop_live.pbtxt

#multi-hand tracking
bazel build -c opt --define MEDIAPIPE_DISABLE_GPU=1 mediapipe/examples/desktop/multi_hand_tracking:multi_hand_tracking_cpu

#run
GLOG_logtostderr=1 
bazel-bin/mediapipe/examples/desktop/multi_hand_tracking/multi_hand_tracking_cpu --calculator_graph_config_file = mediapipe/graphs/hand_tracking/hand_tracking_desktop_live.pbtxt

#build
bazel build -c opt --copt -DMESA_EGL_NO_X11_HEADERS --copt -DEGL_NO_X11 \
  mediapipe/examples/desktop/hand_tracking:hand_tracking_gpu

#run
GLOG_logtostderr=1 
bazel-bin/mediapipe/examples/desktop/hand_tracking/hand_tracking_gpu \
  --calculator_graph_config_file = mediapipe/graphs/hand_tracking/hand_tracking_mobile.pbtxt