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notebook.tex
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% Default to the notebook output style
% Inherit from the specified cell style.
\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
% Nicer default font (+ math font) than Computer Modern for most use cases
\usepackage{mathpazo}
% Basic figure setup, for now with no caption control since it's done
% automatically by Pandoc (which extracts  syntax from Markdown).
\usepackage{graphicx}
% We will generate all images so they have a width \maxwidth. This means
% that they will get their normal width if they fit onto the page, but
% are scaled down if they would overflow the margins.
\makeatletter
\def\maxwidth{\ifdim\Gin@nat@width>\linewidth\linewidth
\else\Gin@nat@width\fi}
\makeatother
\let\Oldincludegraphics\includegraphics
% Set max figure width to be 80% of text width, for now hardcoded.
\renewcommand{\includegraphics}[1]{\Oldincludegraphics[width=.8\maxwidth]{#1}}
% Ensure that by default, figures have no caption (until we provide a
% proper Figure object with a Caption API and a way to capture that
% in the conversion process - todo).
\usepackage{caption}
\DeclareCaptionLabelFormat{nolabel}{}
\captionsetup{labelformat=nolabel}
\usepackage{adjustbox} % Used to constrain images to a maximum size
\usepackage{xcolor} % Allow colors to be defined
\usepackage{enumerate} % Needed for markdown enumerations to work
\usepackage{geometry} % Used to adjust the document margins
\usepackage{amsmath} % Equations
\usepackage{amssymb} % Equations
\usepackage{textcomp} % defines textquotesingle
% Hack from http://tex.stackexchange.com/a/47451/13684:
\AtBeginDocument{%
\def\PYZsq{\textquotesingle}% Upright quotes in Pygmentized code
}
\usepackage{upquote} % Upright quotes for verbatim code
\usepackage{eurosym} % defines \euro
\usepackage[mathletters]{ucs} % Extended unicode (utf-8) support
\usepackage[utf8x]{inputenc} % Allow utf-8 characters in the tex document
\usepackage{fancyvrb} % verbatim replacement that allows latex
\usepackage{grffile} % extends the file name processing of package graphics
% to support a larger range
% The hyperref package gives us a pdf with properly built
% internal navigation ('pdf bookmarks' for the table of contents,
% internal cross-reference links, web links for URLs, etc.)
\usepackage{hyperref}
\usepackage{longtable} % longtable support required by pandoc >1.10
\usepackage{booktabs} % table support for pandoc > 1.12.2
\usepackage[inline]{enumitem} % IRkernel/repr support (it uses the enumerate* environment)
\usepackage[normalem]{ulem} % ulem is needed to support strikethroughs (\sout)
% normalem makes italics be italics, not underlines
% Colors for the hyperref package
\definecolor{urlcolor}{rgb}{0,.145,.698}
\definecolor{linkcolor}{rgb}{.71,0.21,0.01}
\definecolor{citecolor}{rgb}{.12,.54,.11}
% ANSI colors
\definecolor{ansi-black}{HTML}{3E424D}
\definecolor{ansi-black-intense}{HTML}{282C36}
\definecolor{ansi-red}{HTML}{E75C58}
\definecolor{ansi-red-intense}{HTML}{B22B31}
\definecolor{ansi-green}{HTML}{00A250}
\definecolor{ansi-green-intense}{HTML}{007427}
\definecolor{ansi-yellow}{HTML}{DDB62B}
\definecolor{ansi-yellow-intense}{HTML}{B27D12}
\definecolor{ansi-blue}{HTML}{208FFB}
\definecolor{ansi-blue-intense}{HTML}{0065CA}
\definecolor{ansi-magenta}{HTML}{D160C4}
\definecolor{ansi-magenta-intense}{HTML}{A03196}
\definecolor{ansi-cyan}{HTML}{60C6C8}
\definecolor{ansi-cyan-intense}{HTML}{258F8F}
\definecolor{ansi-white}{HTML}{C5C1B4}
\definecolor{ansi-white-intense}{HTML}{A1A6B2}
% commands and environments needed by pandoc snippets
% extracted from the output of `pandoc -s`
\providecommand{\tightlist}{%
\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
\DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}}
% Add ',fontsize=\small' for more characters per line
\newenvironment{Shaded}{}{}
\newcommand{\KeywordTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{\textbf{{#1}}}}
\newcommand{\DataTypeTok}[1]{\textcolor[rgb]{0.56,0.13,0.00}{{#1}}}
\newcommand{\DecValTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}}
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\newcommand{\FloatTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}}
\newcommand{\CharTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}}
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\newcommand{\OtherTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{{#1}}}
\newcommand{\AlertTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{{#1}}}}
\newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.02,0.16,0.49}{{#1}}}
\newcommand{\RegionMarkerTok}[1]{{#1}}
\newcommand{\ErrorTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{{#1}}}}
\newcommand{\NormalTok}[1]{{#1}}
% Additional commands for more recent versions of Pandoc
\newcommand{\ConstantTok}[1]{\textcolor[rgb]{0.53,0.00,0.00}{{#1}}}
\newcommand{\SpecialCharTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}}
\newcommand{\VerbatimStringTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}}
\newcommand{\SpecialStringTok}[1]{\textcolor[rgb]{0.73,0.40,0.53}{{#1}}}
\newcommand{\ImportTok}[1]{{#1}}
\newcommand{\DocumentationTok}[1]{\textcolor[rgb]{0.73,0.13,0.13}{\textit{{#1}}}}
\newcommand{\AnnotationTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{{#1}}}}}
\newcommand{\CommentVarTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{{#1}}}}}
\newcommand{\VariableTok}[1]{\textcolor[rgb]{0.10,0.09,0.49}{{#1}}}
\newcommand{\ControlFlowTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{\textbf{{#1}}}}
\newcommand{\OperatorTok}[1]{\textcolor[rgb]{0.40,0.40,0.40}{{#1}}}
\newcommand{\BuiltInTok}[1]{{#1}}
\newcommand{\ExtensionTok}[1]{{#1}}
\newcommand{\PreprocessorTok}[1]{\textcolor[rgb]{0.74,0.48,0.00}{{#1}}}
\newcommand{\AttributeTok}[1]{\textcolor[rgb]{0.49,0.56,0.16}{{#1}}}
\newcommand{\InformationTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{{#1}}}}}
\newcommand{\WarningTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textbf{\textit{{#1}}}}}
% Define a nice break command that doesn't care if a line doesn't already
% exist.
\def\br{\hspace*{\fill} \\* }
% Math Jax compatability definitions
\def\gt{>}
\def\lt{<}
% Document parameters
\title{video\_hack\_work\_doc}
% Pygments definitions
\makeatletter
\def\PY@reset{\let\PY@it=\relax \let\PY@bf=\relax%
\let\PY@ul=\relax \let\PY@tc=\relax%
\let\PY@bc=\relax \let\PY@ff=\relax}
\def\PY@tok#1{\csname PY@tok@#1\endcsname}
\def\PY@toks#1+{\ifx\relax#1\empty\else%
\PY@tok{#1}\expandafter\PY@toks\fi}
\def\PY@do#1{\PY@bc{\PY@tc{\PY@ul{%
\PY@it{\PY@bf{\PY@ff{#1}}}}}}}
\def\PY#1#2{\PY@reset\PY@toks#1+\relax+\PY@do{#2}}
\expandafter\def\csname PY@tok@w\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.73,0.73,0.73}{##1}}}
\expandafter\def\csname PY@tok@c\endcsname{\let\PY@it=\textit\def\PY@tc##1{\textcolor[rgb]{0.25,0.50,0.50}{##1}}}
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\expandafter\def\csname PY@tok@k\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.00,0.50,0.00}{##1}}}
\expandafter\def\csname PY@tok@kp\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.00,0.50,0.00}{##1}}}
\expandafter\def\csname PY@tok@kt\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.69,0.00,0.25}{##1}}}
\expandafter\def\csname PY@tok@o\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.40,0.40,0.40}{##1}}}
\expandafter\def\csname PY@tok@ow\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.67,0.13,1.00}{##1}}}
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\expandafter\def\csname PY@tok@nf\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.00,0.00,1.00}{##1}}}
\expandafter\def\csname PY@tok@nc\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.00,0.00,1.00}{##1}}}
\expandafter\def\csname PY@tok@nn\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.00,0.00,1.00}{##1}}}
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\expandafter\def\csname PY@tok@nv\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.10,0.09,0.49}{##1}}}
\expandafter\def\csname PY@tok@no\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.53,0.00,0.00}{##1}}}
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\expandafter\def\csname PY@tok@nt\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.00,0.50,0.00}{##1}}}
\expandafter\def\csname PY@tok@nd\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.67,0.13,1.00}{##1}}}
\expandafter\def\csname PY@tok@s\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.73,0.13,0.13}{##1}}}
\expandafter\def\csname PY@tok@sd\endcsname{\let\PY@it=\textit\def\PY@tc##1{\textcolor[rgb]{0.73,0.13,0.13}{##1}}}
\expandafter\def\csname PY@tok@si\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.73,0.40,0.53}{##1}}}
\expandafter\def\csname PY@tok@se\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.73,0.40,0.13}{##1}}}
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\expandafter\def\csname PY@tok@ss\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.10,0.09,0.49}{##1}}}
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\expandafter\def\csname PY@tok@gd\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.63,0.00,0.00}{##1}}}
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\expandafter\def\csname PY@tok@ge\endcsname{\let\PY@it=\textit}
\expandafter\def\csname PY@tok@gs\endcsname{\let\PY@bf=\textbf}
\expandafter\def\csname PY@tok@gp\endcsname{\let\PY@bf=\textbf\def\PY@tc##1{\textcolor[rgb]{0.00,0.00,0.50}{##1}}}
\expandafter\def\csname PY@tok@go\endcsname{\def\PY@tc##1{\textcolor[rgb]{0.53,0.53,0.53}{##1}}}
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\def\PYZbs{\char`\\}
\def\PYZus{\char`\_}
\def\PYZob{\char`\{}
\def\PYZcb{\char`\}}
\def\PYZca{\char`\^}
\def\PYZam{\char`\&}
\def\PYZlt{\char`\<}
\def\PYZgt{\char`\>}
\def\PYZsh{\char`\#}
\def\PYZpc{\char`\%}
\def\PYZdl{\char`\$}
\def\PYZhy{\char`\-}
\def\PYZsq{\char`\'}
\def\PYZdq{\char`\"}
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% for compatibility with earlier versions
\def\PYZat{@}
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\def\PYZrb{]}
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% Exact colors from NB
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% Prevent overflowing lines due to hard-to-break entities
\sloppy
% Setup hyperref package
\hypersetup{
breaklinks=true, % so long urls are correctly broken across lines
colorlinks=true,
urlcolor=urlcolor,
linkcolor=linkcolor,
citecolor=citecolor,
}
% Slightly bigger margins than the latex defaults
\geometry{verbose,tmargin=1in,bmargin=1in,lmargin=1in,rmargin=1in}
\begin{document}
\maketitle
视频下载与上传小软件{}
{{1~~}需求分析}
{{1.1~~}下载部分}
{{1.2~~}上传部分}
{{2~~}下载部分}
{{2.1~~}you-get}
{{2.2~~}一点资讯}
{{2.3~~}西瓜视频}
{{3~~}上传部分}
\section{需求分析}\label{ux9700ux6c42ux5206ux6790}
\subsection{下载部分}\label{ux4e0bux8f7dux90e8ux5206}
\begin{itemize}
\item
快手(已经有小软件,可以暂时使用他们的),
\item
西瓜视频,
\item
抖音,
\item
火山小视频,
\item
一点资讯中的视频
\item
按id,类别,视频地址爬
\item
视频,标题,长度,清晰度
\item
视频长度过滤(去除短于15秒的视频,长于3分钟的视频。)
\end{itemize}
\subsection{上传部分}\label{ux4e0aux4f20ux90e8ux5206}
\begin{itemize}
\tightlist
\item
头条
\item
腾讯视频
\end{itemize}
\section{下载部分}\label{ux4e0bux8f7dux90e8ux5206}
发现有一个统一的下载视频的软件you-get,西瓜视频的部分虽然已经可以解析了,但是先测试you-get.
\subsection{you-get}\label{you-get}
安装python多版本支持
安装与测试
\subsection{一点资讯}\label{ux4e00ux70b9ux8d44ux8baf}
策略,目前没有you-get的支持,可能需要一步一步的按照西瓜的逻辑来解析。
鉴于 1.
如果按照用户抓的话,可能其内容有的是非视频,鉴别会增加额外的工作量。 2.
按照用户抓的话目的也是形成一定的类别,而按照类别抓则很容易达到这个目的。
综上,决定先按照类别爬。
获得某一类别下的视频类别,可能需要循环抓,类别下是https抓不到包。
看通过android查看是否可以强制转化为http来抓。
Paros竟然可以得到https的内容,感觉我们同样可以得到这个内容,事实证明python
request可以使用https来爬取内容,通过实验发现强制转化成http也可以抓得到。
尝试类别抓,用户id抓,视频地址抓。
按类别抓,python
post请求看结果,可以得到内容,但是需要登录,会话机制,需要先获得session\_id。
类别下的视频获取数量规则,采用循环刷新来获取视频的机制,已可行,每个目录可以下载1300条左右。
视频最终地址暂时如下:
http://v1.go2yd.com/video/ea0b041c8bdbbf88a247f044e17f8be1.mp4\_bd.mp4
下载使用西瓜的下载方法即可。
界面,类别,考虑界面设计,融合西瓜、快手、一点资讯。
如果用网页版只能缓存,百度网盘,开会员;缓存到本地,得增大空间,且要通知机制。
而且两个都有网络的延迟,都有一个从中国到外国,然后再从外国到中国的过程,不完美。
因此对于界面决定还是用软件的形式来做,决定使用可以兼容python3的支持最多平台的kivy。
考虑python多个版本的问题,pyenv 还是 anaconda, 切换版本必须用pyenv,
python3的环境,使用anaconda最高版本,而anaconda只是python一个增强发行版。
需要下载的类别:搞笑 萌宠 音乐 综艺 动物 生活 看欧美
访问受限,应该是检查ip的问题,利用间歇性循环来解决这个问题,因为过一段时间又可以爬了。
看欧美下不了暂时的,需要调试,其接口不相同需要使用新的post接口,
其实只差一个appid,都添加即可,
url爬下来发现不是视频的,而是其它的,有的时候按类别爬的``搞笑''的也是的,发现不能再用vieo\_url这个key,应该用下面视频列表中的视频,取高清的,建索引时更新用的名字,所以索引处的代码要重新更新。
防重复, 类别每天重复的情况,以搞笑为例,
大概有1/3,通过为每个类别建立已经爬取的视频索引来解决,用的是服务器上视频的名字,应该是一个hash值,已完成。
Vim python 语法插件, 在vimrc里设置将语法高亮打开就可以,
还可以通过修改python.vim来修改语法高亮的具体设置。
开始使用kivy demo,
由于kivy无法用包来安装,只能用dmg的形式,相当于用kivy命令代替了python命令,这样就破坏了pyenv的执行环境,而且其额外包的安装并不清楚,
可以通过kivy --m pip
install来安装,不过不知道为什么会出错,故而放弃,转用tkinter。
将一点资讯加入到界面逻辑中去。
下载时禁用frame再打开,已经通过检查下载弹窗口来实现这个功能
日志记录下来以备忘
添加退出的问题,以关闭相应的资源,暂时绑定在窗口关闭事件中。
存在一个视频有多个视频源的情况,暂取高清。
Path的问题,输入,新建,
为了方便用默认的方法,默认用名字来代替,当前目录,安装时可在run\_param.py中修改。
添加线程的监护线程,为了实现状态监督,最后的处理,成功时弹窗口,失败时有处理(至少有一个提示)。
新的http异常的处理,还是用循环等待的方法, connectionerror。
看一下日志中的错误跟上相同。
添加时长的限制在用户面板上,放在了菜单里面,因为是通用的。
部署到机器上面去。
Json的编码有问题,先在本地windows测试一下,原来是python2与python3处理编码时的位置不同造成的,前者是读取文件后用户处理,而后者则是在读取文件就要处理,程序内一概用unicode。
熟悉了解anaconda, notebook.
开始使用起来,尤其是在mac上,就这样定了,但其不适合写大型的程序,还是适合写一些测试用的代码或者说交互式的数据分析文档用的,以后尝试着将所有的测试代码全部都移植到jupyter
notebook上,所以编辑器上还是在pycharm与spyder上进行选择,鉴于自己在everonte上对于编辑器的核心要求,还是选择pycharm,其实spyder也是可以的,没有pycharm的情况下考虑使用,毕竟查看变量还是很方便的。
对比与pycharm以确定自己的编辑器(见上)。
文件名保存前的处理,尤其是一些乱码字符?回车等的处理。 文件名乱码。
日志中加入时间戳。
既然pythonw造成无法log\_main输入的事实(应该是因为dos窗口消失的问题,所有的到标准输出的重定向都没有打印出来),得想个办法将error给打印出来才行,日志或者是scrolledtext都可以。
添加按用户id爬的逻辑,这种情况下去重做法同上
还是需要登录,同样是循环刷新的逻辑,已完成。
\subsection{西瓜视频}\label{ux897fux74dcux89c6ux9891}
提供好用户id, 构造url如下:
http://m.365yg.com/video/app/user/home/?to\_user\_id=95538078135\&iid=29295669458\&device\_id=14231720144\&format=html\&app=video\_article
获得视频列表,其中元素如下:
http://toutiao.com/group/6540255318931145223/?app=video\_article\&scheme=snssdk141\%3A\%2F\%2Fdetail\%3Fgroupid\%3D6540255318931145223
点开后的最终播放地址是: http://www.365yg.com/a6540255318931145223
页面中的视频地址是通过构造如下的request后得到的json反馈,
http://ib.365yg.com/video/urls/v/1/toutiao/mp4/a519dca5dd6442839c23a73889e56395?r=08633517709597993\&s=3290301971\&action=GetVideoPlayInfo\_YG365A\&callback=axiosJsonpCallback1\&\_=1523763335035
包含在http://s0.pstatp.com/cdn/expire-1-M/byted-player-service/1.0.6/byted-player-service.min.js
其中: a519dca5dd6442839c23a73889e56395 为视频id,
r参数为一个随机数,Math.random().toString(10).substring(2)
s参数为这是前面部分地址的CRC32校验值无符号右移0位
其它的参数都可以省略,照样可以得到解析结果,只不过播放地址与带这些参数的有不同。
可以得到response如下:
\begin{figure}
\centering
\includegraphics{./img/response.png}
\caption{Alt text}
\end{figure}
其中main\_url就是视频的源地址,base64反编码以后就可以得到视频的播放地址。
Python中下载视频的方法,参见python\_learning
project,其中还可以得到进度条。
\section{上传部分}\label{ux4e0aux4f20ux90e8ux5206}
上传单独一个软件。
% Add a bibliography block to the postdoc
\end{document}