分类电脑技巧下的文章

使用SDK和imagebuilder编译自己使用的openwrt固件

作者: 拾月
时间: 2019-11-25
分类: 默认分类,Linux Tips
评论

系统

本次使用的是ubuntu18.04LTS mini,其他版本可能编译出来的固件会不停的重启

依赖安装

sudo apt-get install subversion build-essential libncurses5-dev zlib1g-dev gawk git ccache gettext libssl-dev xsltproc zip python

下载对应的sdk和imagebuilder

下载链接见官网

编译自己需要的包

adbyby
luci-app-adbyby-plus
frpc
luci-app-frpc
luci-app-ttyd
vlmcsd
luci-app-vlmcsd
luci-app-vsftpd
vsftpd-alt

编译步骤
解压下载的SDK，并切换到sdk的package目录，然后下载源码

svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/luci-app-adbyby-plus
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/adbyby
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/luci-app-frpc
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/frpc
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/luci-app-ttyd
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/vsftpd-alt
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/luci-app-vsftpd
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/autosamba
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/luci-app-vlmcsd
svn co https://github.com/coolsnowwolf/lede/trunk/package/lean/vlmcsd

更新上面package里需要的依赖feeds

./scripts/feeds update -a
./scripts/feeds install luci uci libubox lua libev

生成需要编译包的shell script，并修改删除不要的一些行，然后运行这个脚本

ll package/ |awk '{print "make package/"$9"compile V=99"}' >willCompile.sh
chmod +x a.sh
bash ./willCompile.sh

将编译好的ipk，复制到imagebuilder解压后生成的目录下的packages目录里

find . -name *.ipk -exec mv {} imagebuilder/packages/ \;

切换到imagebuilder目录，修改repositories.conf 文件，添加翻墙需要的包的仓库

src/gz openwrt_dist http://openwrt-dist.sourceforge.net/packages/base/mips_24kc
src/gz openwrt_dist_luci http://openwrt-dist.sourceforge.net/packages/luci

注意路由器的架构，修改对应的mips_24kc

[root@NETGEAR:/root]# opkg print-architecture | awk '{print $2}'  # 查看路由器架构
all
noarch
mips_24kc

http://www.zhangjun.sh.cn/index.php/other/openwrt-ss-chinadns.html

NETGEAR wndr4300v1 还要修改 target/linux/ar71xx/image/legacy.mk 文件，使用完整的128MB空间（已测试于OpenWrt 18.06.5）

sed -i s/'23552k(ubi),25600k@0x6c0000(firmware)'/'120832k(ubi),122880k@0x6c0000(firmware)'/ target/linux/ar71xx/image/legacy.mk

https://www.right.com.cn/forum/thread-521490-1-1.html
https://forum.openwrt.org/t/netgear-wndr4300-extra-flash-space/38183

添加必备的一些设置，比如自动挂载U盘脚本，设置lan口ip、科学上网设置等，这些可以在imagebuilder目录下新建 files/etc/uci-defaults 目录，然后在其中添加对应功能的uci命令的shell脚本，比如：

#!/bin/sh

uci add_list dhcp.@dnsmasq[0].confdir=/etc/dnsmasq.d
uci add_list dhcp.@dnsmasq[0].cachesize=10000
uci commit dhcp

最后，开始编译固件
NETGEAR wndr4300v1

make image PROFILE=WNDR4300V1 PACKAGES="-dnsmasq dnsmasq-full -wpad-mini wpad curl coreutils-base64 \
wget ca-certificates ca-bundle iptables-mod-tproxy ChinaDNS luci-app-chinadns shadowsocks-libev luci-app-shadowsocks simple-obfs \
luci-app-adbyby-plus luci-app-frpc luci-app-ttyd luci-app-vsftpd luci-i18n-adbyby-plus-zh-cn luci-i18n-ttyd-zh-cn luci-i18n-vsftpd-zh-cn \
luci luci-base luci-i18n-base-zh-cn \
luci-i18n-firewall-zh-cn block-mount \
kmod-fs-cifs kmod-fs-ext4 kmod-fs-msdos kmod-fs-vfat ntfs-3g \
kmod-nls-base kmod-nls-cp437 kmod-nls-cp936 kmod-nls-iso8859-1 kmod-nls-utf8 \
samba36-hotplug luci-app-samba luci-i18n-samba-zh-cn samba36-server \
kmod-usb-core kmod-usb-ohci kmod-usb-storage kmod-usb-storage-extras kmod-usb-uhci kmod-usb2 kmod-usbmon usbutils \
hd-idle luci-app-hd-idle luci-i18n-hd-idle-zh-cn \
luci-app-wol luci-i18n-wol-zh-cn \
minidlna luci-app-minidlna luci-i18n-minidlna-zh-cn \
wifischedule luci-app-wifischedule luci-i18n-wifischedule-zh-cn \
fdisk lrzsz openssh-sftp-server \
vlmcsd luci-app-vlmcsd luci-i18n-vlmcsd-zh-cn" FILES=files/

TP-LINK WR720N

make image PROFILE=tl-wr720n-v3 PACKAGES="-dnsmasq dnsmasq-full -wpad-mini wpad curl coreutils-base64 \
wget ca-certificates ca-bundle iptables-mod-tproxy ChinaDNS luci-app-chinadns shadowsocks-libev luci-app-shadowsocks simple-obfs \
luci-app-adbyby-plus luci-app-frpc luci-app-ttyd luci-app-vsftpd luci-i18n-adbyby-plus-zh-cn luci-i18n-ttyd-zh-cn luci-i18n-vsftpd-zh-cn \
luci luci-base luci-i18n-base-zh-cn \
luci-i18n-firewall-zh-cn block-mount \
kmod-fs-cifs kmod-fs-ext4 kmod-fs-msdos kmod-fs-vfat ntfs-3g \
kmod-nls-base kmod-nls-cp437 kmod-nls-cp936 kmod-nls-iso8859-1 kmod-nls-utf8 \
autosamba luci-app-samba luci-i18n-samba-zh-cn samba36-server \
kmod-usb-core kmod-usb-ohci kmod-usb-storage kmod-usb-storage-extras kmod-usb-uhci kmod-usb2 kmod-usbmon usbutils \
hd-idle luci-app-hd-idle luci-i18n-hd-idle-zh-cn \
luci-app-wol luci-i18n-wol-zh-cn \
minidlna luci-app-minidlna luci-i18n-minidlna-zh-cn \
wifischedule luci-app-wifischedule luci-i18n-wifischedule-zh-cn \
fdisk lrzsz openssh-sftp-server \
vlmcsd luci-app-vlmcsd luci-i18n-vlmcsd-zh-cn" FILES=files/

最后，4300刷机步骤

文件名：openwrt-15.05-ar71xx-nand-wndr4300-ubi-factory.img

推荐直接 tftp 刷机：
1.电脑设置静态 IP：
IP：192.168.1.2
子网掩码：255.255.255.0
默认网关：192.168.1.1

2.将电脑连接至路由器任一 LAN 口

3.在 Windows 控制面板 -> 程序 -> 启用或关闭Windows功能中，开启 TFTP 客户端

4.关闭路由器电源，使用牙签(或其他类似物)捅住路由器背面的 reset 按钮不放，打开路由器电源，待电源指示灯呈绿色并有规律闪动即可松开 reset 按钮

5.传送固件，打开命令行窗口，使用
tftp -i 192.168.1.1 put <路径>/openwrt-15.05-ar71xx-nand-wndr4300-ubi-factory.img
传送固件至路由器，出现如下提示则固件传送成功：
传输成功: 3 秒 12451969 字节，4150656 字节/秒

6.静待路由器重启并完成固件刷新，切不可着急强制切断电源

7.待确认路由器重启成功后(比如可以登录http://192.168.1.1)，直接关闭路由器电源30秒以上，然后再打开电源，否则可能出现 5G WiFi 不可用的问题。

科学上网设置

http://www.zhangjun.sh.cn/index.php/other/openwrt-ss-chinadns.html
所有设置好，并测试完毕，可以备份设置，再次编译并刷机，这样，恢复出厂设置也不要设置很多地方。

其他事项

查看已安装的包

echo $(opkg list-installed | sed -e "s/\s.*$//")

常用设置

uci del dhcp.lan.dhcp_option
uci add_list dhcp.lan.dhcp_option='6,223.5.5.5,223.6.6.6'

# /etc/config/network

uci del network.lan.dns
uci add_list network.lan.dns='223.5.5.5'
uci add_list network.lan.dns='223.6.6.6'

编译的默认设置

xxx@debian:~/openwrt/openwrt-imagebuilder-22.03.5-ramips-mt7620.Linux-x86_64$ cat files/etc/uci-defaults/abc.sh 
#!/bin/sh


uci add_list dhcp.@dnsmasq[0].confdir=/etc/dnsmasq.d
uci add_list dhcp.@dnsmasq[0].cachesize=10000
uci commit dhcp

uci set luci.main.lang=zh_cn
uci commit luci

uci set system.@system[0].hostname='Lenovo'
uci set system.@system[0].timezone=CST-8
uci set system.@system[0].zonename=Asia/Shanghai
uci commit system

uci del dhcp.lan.dhcp_option
uci add_list dhcp.lan.dhcp_option='6,223.5.5.5,223.6.6.6'

# /etc/config/network

uci del network.lan.dns
uci add_list network.lan.dns='223.5.5.5'
uci add_list network.lan.dns='223.6.6.6'
uci set network.lan.ipaddr='192.168.99.1'
uci commit

sed -i '/option disabled/d' /etc/config/wireless
sed -i '/set wireless.radio${devidx}.disabled/d' /lib/wifi/mac80211.sh
sed -i 's/OpenWrt/Lenovo/' /lib/wifi/mac80211.sh

cat >> /etc/profile <<EOF

export PS1='[\[\033[35;1m\]\u\[\033[0m\]@\[\033[31;1m\]\h\[\033\[0m\]:\[\033[32;1m\]$PWD\[\033[0m\]]\$ '

alias df='df -Th'
alias free='free -m'
alias la='ll -A'
alias ll='ls -alh --color=auto'
alias ls='ls --color=auto'

[ -x /bin/more ] || alias more=less
[ -x /usr/bin/vim ] && alias vi=vim || alias vim=vi
alias ll='ls -alF --color=auto'
EOF

exit 0

无线密码

# /etc/config/wireless
uci set wireless.radio0.cell_density='0'
uci set wireless.default_radio0.ssid='Lenovo-5G'
uci set wireless.default_radio0.encryption='psk2'
uci set wireless.default_radio0.key='---------'
uci set wireless.radio1.cell_density='0'
uci set wireless.default_radio1.ssid='Lenovo'
uci set wireless.default_radio1.encryption='psk2'
uci set wireless.default_radio1.key='----------'

ffmpeg tips

作者: 拾月
时间: 2019-07-09
分类: Linux Tips
评论

ffmpeg 从视频中提取音频文件保存为MP3

ffmpeg -i apple.mp4 -f mp3 -vn apple.mp3

ffmpeg 从视频中提取音频文件，修改播放速度

ffmpeg -i apple.mp4 -filter:a "atempo=1.3" -f mp3 -vn apple.mp3

注意：

倍率调整范围为[0.5, 2.0]

#coding:utf-8
#description: MP42mp3

import os,sys
import argparse
import subprocess

def convert(path):
    bin = "ffmpeg.exe"
    ls = os.listdir(path)
    for x in ls:
        if x.endswith("mp4"):
            cmdargs = '%s -i "%s" -filter:a "atempo=1.3" -f mp3 -vn "%s"' % (bin ,x,x.replace(".mp4",".mp3"))
            print cmdargs

if __name__ =="__main__":
    if ( os.path.isdir(sys.argv[1])):
        path = sys.argv[1]
        convert(path)

参考链接：https://blog.csdn.net/matrix_laboratory/article/details/53158307

获取网页中特定格式的超级链接

作者: 拾月
时间: 2019-04-03
分类: 默认分类,Javascript
评论

最近在追知否知否，但是，iqiyi的vip是分电视和手机端的，不爽，所以准备下载下来看看。
刚好看到这个网站有：https://www.btdx8.com/torrent/zfzfyslfhs_2018.html
但是没有全选复制的按钮啊，自己动手吧。
步骤：chrome打开这个网站，按Ctrl+Shift+i,打开开发者工具，请打开 Sources 面板，点击 Snippets 标签，在导航器中点击右键，然后选择 New，输入下面的代码即可（都是电驴的链接）

var str = "";
var list = document.getElementsByTagName("a");
for (var i=0;i<list.length;i++){
    if (list[i].href.indexOf("ed2k")!=-1)
       str += list[i].href + ' \n';
};
console.log(str);

然后后运行即可。