OpenHarmony 中device_soc_rockchip仓rk3588/hardware/mpp/中 librockchip_mpp.z.so 溯源和编译说明
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1. 获取mpp源码，请参考以下网址：
https://gitee.com/hihope-rk3588/mpp-develop

2. 构建指导
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```
# 获取代码
git clone https://gitee.com/hihope-rk3588/mpp-develop.git

将下载的源码目录移动至device/soc/rockchip/rk3588/hardware/mpp/下

# 编译mpp
修改device/soc/rockchip/rk3588/hardware/BUILD.gn 增加编译项，如下
group("hardware_group") {
  deps = [
    "//device/soc/rockchip/rk3588/hardware/gpu:mali-g610-ohos",
    "//device/soc/rockchip/rk3588/hardware/gpu:firmware",
    "//device/soc/rockchip/rk3588/hardware/isp:isp",
    /*下面是新增加的编译项*/
    "//device/soc/rockchip/rk3588/hardware/mpp/mpp-develop/mpp:rockchip_mpp",
    "//device/soc/rockchip/rk3588/hardware/mpp:mpp",
    "//device/soc/rockchip/rk3588/hardware/rga:rga",
    "//device/soc/rockchip/rk3588/hardware/wifi:ap6xxx"
  ]
}


编译整个工程或单独编译该模块：
./build.sh --product-name dayu210

out目录下获取新编译的librockchip_mpp.z.so
out/rk3588/common/common/librockchip_mpp.z.so
```



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