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Python Video Converter

基于ffmpeg命令行的转码服务。

提供RESTful转码接口,参考了七牛转码接口参数

{
    "scope" : "a/b/c/d/1.mp4",
    "targetTemplate" : "${filename}_${Resolution}_${vb}.${subffix}",
    "domain" : "http://www.ebook.com",
    "taskID": "",
    "rootDir" : "",
    "deadline" : 0,
    "callbackUrl" : "",
    "callbackBody" : "",
    "callbackBodyType" : "",
    "persistentOps" : "avthumb/mp4/acodec/aac/ab/128k/ar/44100/vcodec/h264/s/360x240/aspect/3:2/r/25",
    "persistentNotifyUrl" : "http://www.abc.com/transcode/notify",
    "persistentPipeline" : "",
    "persistentNotifyBody" : "",
    "persistentNotifyType" : "",
    "fsize" : -1,
    "checksum" : ""
}    

Quickstart

###转码系统组件:

转码系统由客户端,转码任务队列,转码服务,转码作业管理组成。
流程如下:
1.客户端向转码任务队列发送转码任务。
2.转码任务队列排队转码任务,接受任务请求,并按照FIFO原则派发任务。
3.转码服务向队列请求转码任务,开始执行转码任务,并上报转码结果给作业管理系统。
4.作业管理系统接收转码上报,写入数据库,提供转码作业信息的查询。

image

###转码任务队列

队列基于httpmq(https://github.com/hnlq715/httpmq)实现,支持put/get操作。

1.put操作
基于http get方式:http://host:port/?name=your_queue_name&opt=put&data=url_encoded_text_message&auth=mypass123

基于http post方式:
http://host:port/?name=your_queue_name&opt=put&auth=mypass123
...data...

2.get操作
http://host:port/?charset=utf-8&name=your_queue_name&opt=get&auth=mypass123

###转码任务描述

转码任务采用json格式,格式如下:

{
    "scope" : "a/b/c/d/1.mp4",
    "targetTemplate" : "${filename}_${Resolution}_${vb}.${subffix}",
    "domain" : "http://www.ebook.com",
    "taskID": "",
    "rootDir" : "",
    "deadline" : 0,
    "callbackUrl" : "",
    "callbackBody" : "",
    "callbackBodyType" : "",
    "persistentOps" : "avthumb/mp4/acodec/aac/ab/128k/ar/44100/vcodec/h264/s/360x240/aspect/3:2/r/25",
    "persistentNotifyUrl" : "http://www.abc.com/transcode/notify",
    "persistentPipeline" : "",
    "persistentNotifyBody" : "",
    "persistentNotifyType" : "",
    "fsize" : -1,
    "checksum" : ""
}    

Plan

基于分片的分布式转码服务 ....

Documentation and tests

test目录下有给转码队列发送http json例子,读者可以根据自己需求自定义转码persistentOps

Installation and requirements

 1.python setup.py install
 2.python server/transcode_server.py -c server/transcode.cfg

Authors and Copyright

Copyright © 2015-2016. cwinging@163.com.

Licensing and Patents

Although FFmpeg is licensed under LGPL/GPL, Python Video Converter only invokes the existing ffmpeg executables on the system (ie. doesn’t link to the ffmpeg libraries), so it doesn’t need to be LGPL/GPL as well.

The same applies to patents. If you’re in a country which recognizes software patents, it’s up to you to ensure you’re complying with the patent laws. Please read the FFMpeg Legal FAQ for more information.

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