dao caomulaodao

使用ffmpeg合并MP4文件

ffmpeg -i "Apache Sqoop Tutorial Part 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
ffmpeg -i "Apache Sqoop Tutorial Part 2.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
ffmpeg -i "Apache Sqoop Tutorial Part 3.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate3.ts
ffmpeg -i "Apache Sqoop Tutorial Part 4.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate4.ts
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts|intermediate3.ts|intermediate4.ts" -c copy -bsf:a aac_adtstoasc "Apache Sqoop Tutorial.mp4"

常用的 HTML 头部标签

详细介绍参见原文：yisibl/blog#1

<!DOCTYPE html> <!-- 使用 HTML5 doctype，不区分大小写 -->
<html lang="zh-cmn-Hans"> <!-- 更加标准的 lang 属性写法 http://zhi.hu/XyIa -->
<head>
    <meta charset='utf-8'> <!-- 声明文档使用的字符编码 -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <!-- 优先使用 IE 最新版本和 Chrome -->

In August 2007 a hacker found a way to expose the PHP source code on facebook.com. He retrieved two files and then emailed them to me, and I wrote about the issue:

http://techcrunch.com/2007/08/11/facebook-source-code-leaked/

It became a big deal:

http://www.techmeme.com/070812/p1#a070812p1

The two files are index.php (the homepage) and search.php (the search page)

	#EXTM3U name="四川电信IPTV"
	#EXTINF:-1,CCTV-1高清
	http://192.168.2.2/rtp/239.93.0.184:5140
	#EXTINF:-1,CCTV-2高清
	http://192.168.2.2/rtp/239.93.1.23:6000
	#EXTINF:-1,CCTV-3高清
	http://192.168.2.2/rtp/239.93.1.11:2223
	#EXTINF:-1,CCTV-5高清
	http://192.168.2.2/rtp/239.93.1.12:2224
	#EXTINF:-1,CCTV-6高清

	ffmpeg功能极其强大，堪比图像处理的ImageMagik。下面是一些常用的命令，记下备用。
	1：得到视频信息
	ffmpeg -i input.xxx
	2: 将图像序列转换为视频
	ffmpeg -f image2 -i prefix%d.jpg output.xxx
	3:将视频转换为图像序列
	ffmpeg -i input.xxx -r FPS -qscale 1 -vsync 0 $prefix%d.jpg
	其中FPS为每秒抽多少帧
	4:将视频转换为yuv格式
	ffmpeg -i input.avi ouput.yuv

	[
	{
	name:"HTML5",
	uri:"http://www.w3.org/TR/html5/single-page.html",
	category:"markup"
	},
	{
	name:"HTML 5.1",
	uri:"http://www.w3.org/TR/html51/single-page.html",
	category:"markup"