ocean学习笔记（一）：ubuntu编译facebook开源ocean库

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ocean学习笔记（一）：ubuntu编译facebook开源ocean库，包括ocean第三方库编译和主库编译学习笔记。

1.安装python环境

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# 1.curl/wget命令
>> curl -LsSf https://astral.sh/uv/install.sh | sh
>> wget -qO- https://astral.sh/uv/install.sh | sh
# 2.修改环境变量
>> vim ~/.zshrc
export UV_DEFAULT_INDEX="https://pypi.tuna.tsinghua.edu.cn/simple"
. "$HOME/.local/bin/env"
# 3.刷新环境变量
>> source ~/.zshrc
# 4.创建python环境
>> uv venv --python 3.12
>> uv pip install pyyaml rich
# 5.激活python环境
>> source .venv/bin/activate

2.安装工具

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## 1.安装库依赖
>> sudo apt-get install libx11-dev libudev-dev liblzma-dev libgl1-mesa-dev libxcb-glx0-dev -y
## 2.报错 fatal error: openjpeg.h: No such file or directory时
### 2.1 安装openjpg库
>> sudo apt-get install libopenjp2-7-dev -y
### 2.2 导入环境变量中
>> vim ~/.zshrc
export CPLUS_INCLUDE_PATH=/usr/include/openjpeg-2.5:$CPLUS_INCLUDE_PATH
export C_INCLUDE_PATH=/usr/include/openjpeg-2.5:$C_INCLUDE_PATH
### 2.3 刷新环境变量
>> source ~/.zshrc

3.编译第三方库

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# 1.关闭libtiff的lzma选项，依赖配置文件对应libtiff新增lzma: OFF
>> vim build/python/dependencies.yaml
libtiff:
    version: "4.6.0"
    description: "TIFF library and utilities"
    source:
      type: git
      url: https://gitlab.com/libtiff/libtiff.git
      ref: "v4.6.0"
    build:
      system: cmake
      options:
        tiff-tools: OFF
        tiff-tests: OFF
        tiff-contrib: OFF
        tiff-docs: OFF
        # Disable GNU ld version script - not supported by Apple linker
        HAVE_LD_VERSION_SCRIPT: OFF
        # Disable C++ wrapper library - fails to link on iOS shared builds
        cxx: OFF
        # Disable optional codecs that would require additional libraries
        # (jbig, zstd, webp, lerc, libdeflate) not built by Ocean's 3P system.
        # Without this, libtiff auto-detects system libraries and links against
        # them, causing undefined reference errors in static builds.
        lzma: OFF
        jbig: OFF
        zstd: OFF
        webp: OFF
        lerc: OFF
        libdeflate: OFF
    dependencies:
      - zlib
    platforms: all
>> python build/python/build_ocean_3rdparty.py --with opencv --config release
Total builds:         19
Cumulative build time: 13m 59s
Wall-clock time:       10m 46s
Parallelism factor:    1.3x

✓ Build completed successfully!

══════════════════════════════════════════════════════════════════════
Next steps
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Third-party libraries installed at:
  /home/mirror/workspace/ocean/ocean_3rdparty/install

Set OCEAN_THIRDPARTY_PATH so the Ocean Gradle apps (e.g. the PointTracker demo) can find them:

  bash / zsh:
    export OCEAN_THIRDPARTY_PATH="/home/mirror/workspace/ocean/ocean_3rdparty/install"

Alternatively, pass the path explicitly to build_ocean.py:
  python build/python/build_ocean.py --third-party-dir /home/mirror/workspace/ocean/ocean_3rdparty/install
══════════════════════════════════════════════════════════════════════

4. 编译Ocean库

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>> python build/python/build_ocean.py --config release
============================================================
Build Summary
============================================================

All builds completed successfully.

Install locations:
  - /home/mirror/workspace/ocean/ocean_install/linux/linux_x86_64_static

参考资料