84 lines
2.7 KiB
Markdown
84 lines
2.7 KiB
Markdown
枚举视频捕获设备:https://learn.microsoft.com/zh-cn/windows/win32/medfound/enumerating-video-capture-devices
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媒体基础中的音频/视频捕获:https://learn.microsoft.com/zh-cn/windows/win32/medfound/audio-video-capture-in-media-foundation,里面有枚举打印示例代码。
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如何设置视频捕获格式:https://learn.microsoft.com/zh-cn/windows/win32/medfound/how-to-set-the-video-capture-format
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```
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palmDetectionProcess
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facePalmDetectionProcess # 处理每帧,在MPP的回调函数里面
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uart_msg_proc() -> cmd_exec()执行串口协议命令
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sock_cmd_exec() 内部线程逻辑之间通信
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线程函数frame_proc_task()
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algo_cb()->onFacePalmDetectionPassed()->app_server_alive()->sock_cmd_exec:SOCK_CMD__ALIVE_PALM
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ST__PlamRegister()->__PalmRegister() -> PalmFeatureExtract() -> spv2_get_feature()
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frame_proc_task()
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frame_sync_task() // L015 V200 __DUAL_SNS_FAKE__ 双sensor活体
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```
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## 门锁开发环境搭建
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安装如下 python 环境:
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```shell
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sudo apt-get install lz4 unzip python3-pip
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pip3 install yoctools # 安装在 ~/.local 目录下
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# Ubuntu下product实际为product64
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cd ~/.local/bin
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ln -s product64 product
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# 以下两条命令打印版本,验证是否安装成功,如无版本信息输出,最好重启一下机器。可能安装yoctools后,可能yoc、product还找不到
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yoc -V
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product version
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# 将 python 软链接定向为 python3
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cd /usr/bin
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ln -s python3 python
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```
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原门锁构建环境应该是采用 CenterOS 搭建的,所以很多脚本使用的是 `sh`,在 Ubuntu 环境下,需要注意构建输出,一旦出现疑似脚本错误的问题,可以将脚本开头的 `#/bin/sh` 改为 `#/bin/bash` 再重试。例如脚本文件 `Xuantie-900-gcc-elf-newlib-x86_64-V2.6.1/bin/riscv64-unknown-elf-g++`。
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修改编译器位置,我习惯于将编译器独立于项目工程之外:
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```makefile title="solutions/smart_doorbell/Makefile"
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HOST_TOOLS := /opt/Xuantie-900-gcc-elf-newlib-x86_64-V2.6.1/bin
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```
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上述步骤执行完毕之后,即可编译打包:
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```shell
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./boot-rebuild.sh # 编译boot
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./rebuild-app.sh y L015 V200 R002 # 编译烧录固件
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./rebuild-app-ota.sh y L015 V200 R002 14 # 编译OTA固件,11为OTA版本号
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600X800
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```
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# Flash设置
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```
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__FLASH_16MB__
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cv181x_alios/boards/cv181xc_qfn/configs/config.yaml
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cv181x_alios/boards/cv181xc_qfn/configs/partition_alios_spinor.xml
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cv181x_alios/solutions/smart_doorbell/face_lock_app/flash-part.h
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```
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修改`cv181x_alios/pack-ota.sh`,以支持将boot打进ota升级文件中。(有升级变砖风险)
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```
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# $ota_pack_tool $OTA_PKG imtb yoc.bin algo.bin.1 boot $@
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```
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