Google Mediapipe C++ 환경설정

 

https://google.github.io/mediapipe/getting_started/install.html

Installation

 

 

 

 

 

1. bazel 설치하기(from repositopy)

 

// Step 1: Add Bazel distribution URI as a package source

$ sudo apt install apt-transport-https curl gnupg
$ curl -fsSL https://bazel.build/bazel-release.pub.gpg | gpg --dearmor > bazel.gpg
$ sudo mv bazel.gpg /etc/apt/trusted.gpg.d/
$ echo "deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list


// optional

$ sudo apt-get install openjdk-11-jdk


// Install and update Bazel

$ sudo apt update && sudo apt install bazel

$ sudo apt-get upgrade bazel

$ bazel --version
bazel 3.7.2

 

2. OpenCV 라이브러리 설치(없다면)

$ sudo apt-get install -y \
    libopencv-core-dev \
    libopencv-highgui-dev \
    libopencv-calib3d-dev \
    libopencv-features2d-dev \
    libopencv-imgproc-dev \
    libopencv-video-dev

 

3. mediapipe 소스 다운로드

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

$ cd mediapipe

 

 

파이선 기본 툴 설치하기

$ sudo apt install python3-dev
$ sudo apt install python3-venv
$ sudo apt install -y protobuf-compiler

 

 

WORKSPACE 수정

new_local_repository(
    name = "linux_opencv",
    build_file = "@//third_party:opencv_linux.BUILD",
    path = "/usr/local",
)

new_local_repository(
    name = "linux_ffmpeg",
    build_file = "@//third_party:ffmpeg_linux.BUILD",
    path = "/usr"
)

new_local_repository(
    name = "macos_opencv",
    build_file = "@//third_party:opencv_macos.BUILD",
    path = "/usr/local/opt/opencv@3",
)

new_local_repository(
    name = "macos_ffmpeg",
    build_file = "@//third_party:ffmpeg_macos.BUILD",
    path = "/usr/local/opt/ffmpeg",
)

new_local_repository(
    name = "windows_opencv",
    build_file = "@//third_party:opencv_windows.BUILD",
    path = "C:\\opencv\\build",
)

 

 

/mediapipe/third_party 에서 opencv_linux.BUILD파일 수정

cc_library(
    name = "opencv",
    srcs = glob(
        [
            "lib/libopencv_core.so",
            "lib/libopencv_highgui.so",
            "lib/libopencv_imgcodecs.so",
            "lib/libopencv_imgproc.so",
            "lib/libopencv_video.so",
            "lib/libopencv_videoio.so",
        ],
    ),
    hdrs = glob([
        # For OpenCV 4.x
        #"include/aarch64-linux-gnu/opencv4/opencv2/cvconfig.h",
        #"include/arm-linux-gnueabihf/opencv4/opencv2/cvconfig.h",
        #"include/x86_64-linux-gnu/opencv4/opencv2/cvconfig.h",
        "include/opencv4/opencv2/**/*.h*",
    ]),
    includes = [
        # For OpenCV 4.x
        #"include/aarch64-linux-gnu/opencv4/",
        #"include/arm-linux-gnueabihf/opencv4/",
        #"include/x86_64-linux-gnu/opencv4/",
        "include/opencv4/",
    ],
    linkopts = [
        "-l:libopencv_core.so",
        "-l:libopencv_calib3d.so",
        "-l:libopencv_features2d.so",
        "-l:libopencv_highgui.so",
        "-l:libopencv_imgcodecs.so",
        "-l:libopencv_imgproc.so",
        "-l:libopencv_video.so",
        "-l:libopencv_videoio.so",
    ],
    visibility = ["//visibility:public"],
)

 

 

/mediapipe/third_party 에서 ffmpeg_linux.BUILD파일 수정

cc_library(
    name = "libffmpeg",
    srcs = glob(
        [
            "lib/x86_64-linux-gnu/libav*.so",
        ],
    ),

    hdrs = glob(["include/x86_64-linux-gnu/libav*/*.h"]),
    includes = ["include"],
    linkopts = [
        "-lavcodec",
        "-lavformat",
        "-lavutil",
    ],
    linkstatic = 1,
    visibility = ["//visibility:public"],
)

 

 

Hello World 예제 실행하기

- CPU 또는 GPU로 실행할 수 있음

$ export GLOG_logtostderr=1


// based on CPU

$ bazel run --define MEDIAPIPE_DISABLE_GPU=1 \
    mediapipe/examples/desktop/hello_world:hello_world
    
    
    
    
    
// based on GPU

$ bazel run --copt -DMESA_EGL_NO_X11_HEADERS --copt -DEGL_NO_X11 \
    mediapipe/examples/desktop/hello_world:hello_world

 

실행결과

swift@swift-System-Product-Name:~/workspace/ComputerVision/mediapipe$ export GLOG_logtostderr=1
swift@swift-System-Product-Name:~/workspace/ComputerVision/mediapipe$ bazel run --define MEDIAPIPE_DISABLE_GPU=1     mediapipe/examples/desktop/hello_world:hello_world

DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_google_absl' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_google_protobuf' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_google_googletest' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_github_gflags_gflags' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'build_bazel_rules_apple' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'build_bazel_rules_swift' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'build_bazel_apple_support' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'bazel_skylib' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'pybind11' because it already exists.
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (0 packages loaded, 0 targets configured).
INFO: Found 1 target...
Target //mediapipe/examples/desktop/hello_world:hello_world up-to-date:
  bazel-bin/mediapipe/examples/desktop/hello_world/hello_world
INFO: Elapsed time: 0.106s, Critical Path: 0.00s
INFO: 1 process: 1 internal.
INFO: Build completed successfully, 1 total action
INFO: Build completed successfully, 1 total action
I20210904 00:48:27.768654 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768708 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768718 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768724 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768759 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768784 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768812 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768838 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768864 113944 hello_world.cc:57] Hello World!
I20210904 00:48:27.768891 113944 hello_world.cc:57] Hello World!




swift@swift-System-Product-Name:~/workspace/ComputerVision/mediapipe$ bazel run --copt -DMESA_EGL_NO_X11_HEADERS --copt -DEGL_NO_X11 \
>     mediapipe/examples/desktop/hello_world:hello_world

DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_google_absl' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_google_protobuf' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_google_googletest' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'com_github_gflags_gflags' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'build_bazel_rules_apple' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'build_bazel_rules_swift' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'build_bazel_apple_support' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'bazel_skylib' because it already exists.
DEBUG: /home/swift/.cache/bazel/_bazel_swift/c826c44859fcfa1053ecac283c09bf0c/external/org_tensorflow/third_party/repo.bzl:109:14: 
Warning: skipping import of repository 'pybind11' because it already exists.
INFO: Build options --copt and --define have changed, discarding analysis cache.
INFO: Analyzed target //mediapipe/examples/desktop/hello_world:hello_world (0 packages loaded, 1441 targets configured).
INFO: Found 1 target...
INFO: From ProtoCompile mediapipe/gpu/gl_context_options.pb.h:
bazel-out/k8-fastbuild/bin/external/com_google_protobuf/src: warning: directory does not exist.
Target //mediapipe/examples/desktop/hello_world:hello_world up-to-date:
  bazel-bin/mediapipe/examples/desktop/hello_world/hello_world
INFO: Elapsed time: 37.491s, Critical Path: 24.10s
INFO: 289 processes: 2 internal, 287 linux-sandbox.
INFO: Build completed successfully, 289 total actions
INFO: Build completed successfully, 289 total actions
I20210904 00:52:32.325080 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325129 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325220 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325237 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325305 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325318 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325325 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325331 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325409 114256 hello_world.cc:57] Hello World!
I20210904 00:52:32.325421 114256 hello_world.cc:57] Hello World!
swift@swift-System-Product-Name:~/workspace/ComputerVision/mediapipe$