This project leverages the architectural scheme of the Tp+redis+nginx+nginx-rtmp-module+ffmpeg+hls +swoole
Benefits Introduction
Background Nginx-rtmp Installation Explanation
There are now mainly two kinds of rtmp server, commercial and open source. Business is more powerful than open source support, and individuals can choose according to their needs.
The commercial has FMS Wowza
Open Source rtmp Server
Red5 Java Java with more, performance
This project leverages the architectural scheme of the Tp+redis+nginx+nginx-rtmp-module+ffmpeg+hls +swooleGitHub Address: Https://github.com/DOUBLE-Baller/momoQQ Group: 274904994Demo Address: live.logde.cnAdvantages Introduction Backstage NGINX-RTMP installation explanationThere are now mainly two kinds of rtmp server, commercial and open source. Business is more powerful than open source support, and individuals can choose according to their needs.Th
In order to facilitate live/monitor users to use cloud storage products to store audio and video data, Alibaba Cloud Storage (OSS) products recently launched rtmp streaming function. The user can upload the audio and video data to the cloud storage OSS directly using the RTMP protocol.
Cloud Storage Livechannel Introduction
Livechannel is the new concept of cloud storage in order to manage the rtmp push stream, and the Livechannel is the live channel, which is used to save the push flow configur
BitTorrent is a protocol for distributing files. it identifies content by URL and is designed to integrate seamlessly with the Web. its advantage over plain HTTP is that when multiple downloads of the same file happen concurrently, the Downloaders uploadTo each other, making it possible for the file source to support very large numbers of Downloaders with only a modest increase in its load.
A BitTorrent File Distribution consists of these entities:
An ordinary Web Server
A static 'metainfo' F
SRS is a Chinese development of a video server, the use of support rtmp and HLS protocol, can be made into a container, let the client push the stream, or can be combined with ffmpeg own initiative to pull the stream, detailed instructions can view the SRS wiki:Https://github.com/ossrs/srs/wiki/v2_CN_HomeSrs:http://ossrs.net/srs.release/releases/index.htmlSRS Web Player: http://www.ossrs.net/players/srs_player.html?stream=livestreamport=19350#Ffmpeg:h
forward, backward, pause, start, and stop the stream, you must use MMs. You cannot use the UNC path to fast forward or backward. If you connect to a publishing point from an independent Windows Media Player, you must specify the URL of the unicast content. If the content is published on demand at the main publishing point, the URL consists of the server name and. ASF file name. Example: MMS: // windows_media_server/sample. ASF. Here, windows_media_server is the name of the Windows Media Server,
1. Is it possible to slice the detectionFirst, when calling the Srshlscache::reap_segment function for slicing, there is a function for audio or video to detect whether the length of the current slice meets the required length.For audio, the Srshlsmuxer::is_segment_absolutely_overflow function is called for detection, as follows:bool SrsHlsMuxer::is_segment_absolutely_overflow(){ srs_assert(current); /* 若当前片的时长小于 200 ms,则直接返回 false,即不允许切片 */ /* to prevent very small segment. */ i
(shown by the green arrows). Here is a brief description of each component and a link to the detailed content. The data flow is described below
Paste_image.png
Component
Scrapy EngineThe engine is responsible for controlling the flow of data across all components in the system and triggering events when the corresponding action occurs. For more information, see the Data Flow section below.
Scheduler (Scheduler)The scheduler accepts the request from the engine and queue them up so that
for controlling the flow of data in all components of the system and triggering events when the corresponding action occurs. See the Data Flow section below for more information.
This component is equivalent to the "brain" of a reptile, the dispatch center of the entire reptile. Scheduler (Scheduler)
The scheduler accepts requests from the engine and takes them on the team so that the engine can be supplied to the engine upon request.
The initial crawl URL and subsequent URLs that are fetched i
(Scheduler), which accepts requests sent by the engine, presses into the queue and returns when the engine requests it again. Downloader (Downloader) for downloading Web content and returning the contents of the Web page to the spider. Spider (Spiders), the spider is the main work, use it to develop specific domain names or Web page parsing rules. Write a class that parses the response and extracts the ite
download, and we want to record this is the value.Finally merge, first of all, create a local file, the size of the file and the size of the file we want to download is equal, and then use Java to provide the Randomaccessfile class, this class has a method seek (), which is where to start writing data, And this is where we're going to pass in the argument is an int type.Through the above steps can be a simple implementation of multi-threaded download, and then a little bit about the main code f
follows.
scrapy Architecture
ComponentScrapy EngineThe engine is responsible for controlling the flow of data in all components of the system and triggering events when the corresponding action occurs. See the Data Flow section below for more information.Scheduler (Scheduler)The scheduler accepts requests from the engine and takes them on the team so that the engine can be supplied to the engine upon request.Download (Downloader)The
, pause, start, and stop the stream, you must use MMs. You cannot use the UNC path to fast forward or backward. If you connect to a publishing point from an independent Windows Media Player, you must specify the URL of the unicast content. If the content is published on demand at the main publishing point, the URL consists of the server name and. ASF file name. Example: MMS: // windows_media_server/sample. ASF. Here, windows_media_server is the name of the Windows Media Server, and sample. ASF i
viewing with Quartus, but the open CL related logic inside is encrypted and cannot be modified.The Open CL SDK does not have a graphical interface and can only be run at the command line, automatically invoking Quartus_map, Quartus_fit, Quartus_sta and other tools.2. Xilinx SDAccelThe previous article describes the Xilinx Vivado and Vivado HLS tools. According to my guess, sdaccel is just a layer of packaging, content or
-http_ssl_module make install Problem: is already installed Nginx, how to reconfigure the third-party module, find a write a very comprehensive blog!http://blog.csdn.net/ystyaoshengting/article/details/48436409 How to install nginx Third party module--add-module(./configure --prefix=/Your installation directory --add-module=/third-party module directory)Installation may cause error without installing OpenSSL, you need to execute the command:Yum-y Install OpenSSL Openssl-devel Third, m
the self-cultivation of reptiles _4I. Introduction to the SCRAPY framework
Scrapy is an application framework written with pure Python for crawling Web site data and extracting structural data, which is very versatile.
The power of the framework, users only need to customize the development of a few modules can be easily implemented a crawler, used to crawl Web content and a variety of pictures, very convenient.
Scrapy uses the Twisted [‘tw?st?d] (its main opponent is Tornado) a
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