hls downloader

information is to provide the downloaded file virtual into the equal size of the block , the block size must be 2k of the whole number of square (because it is a virtual block, the hard disk does not produce individual block files), and the index information of each block and hash verification code into the seed file; The seed file is the "index" of the downloaded file. To download the contents of the file, the download needs to get the appropriate seed file first.When downloading, the BT clien

framework written to crawl Web site data and extract structural data. Can be applied in a series of programs including data mining, information processing, or storing historical data.Image4.4 Scrapy Run Process1. Scheduler (Scheduler) to remove a link from the download link (URL)2, the dispatcher starts the Acquisition module Spiders module3, the acquisition module to the URL to the downloader (Downloader)

series of chips and Planahead and HLS tools provide the possibility for large-scale system hardware and software co-design. Therefore, this project uses the ZYNQ experimental platform developed by Digilent company Zedboard to realize the design of gesture recognition and application system. Project IntroductionThe project is based on Zedboard development design, using Xilinx HLS tools for the hardware deve

superstitious about full stack! Don't be superstitious about full stack! What is a knowledge system diagram? Naive ~ In the age of knowledge explosion, what kind of knowledge system diagram are superstitious? Find abuse or how ?? The knowledge system diagram at the front end is enough for you to drink n pots ~ To put it bluntly, I personally support "business-driven ". So what should we do? (Take the current project as an example) 1. panoramic live broadcast platform construction 1.1 Req

later, it seems a short period of time, our bandwidth has widened, the popularity of smart phones, h.254 coding standards are soon accepted, the Internet video application spring finally came. Bandwidth more and more wide, mobile phone faster and more and more video content on the internet, YouTube, Youku and other domestic and foreign video content operations as the main web site springing up, watching video on the internet gradually from fashion to become a habit.In this process, the streamin

I have been using the Crtmpserver service, in the Crtmpserver service according to their own ideas have also added a lot of features, such as through the HTTP interface to load the configuration, suffering from not support HLS, self-added TS Shard level and limited, reasoning decided to use Simplertmpserver's HLS function. Say dry, immediately find related resources, download, decompression a quick, SRS sm

business logic of live streaming.Business logic for live streamingThe following is a streamlined one-to-many live business model, along with protocols across tiers.The differences between the protocols are as followsThese are some of the basic concepts of live technology. Let's look further at the live performance indicators that affect people's visual experience.Live performance metrics that affect the visual experienceLive streaming The first performance indicator is latency, which is the tim

Objective I believe we all know nginx is a very good open source server, use it to do HLS or rtmp streaming media server is a very good choice, so small set up the installation process online, now share to everyone and make a memo. Have the need of friends can refer to study, let's take a look together. I. Installation of Homebrow Brow has been installed to skip this step directly. Execute command Ruby-e "$ (curl-fssl https://raw.githubuse

I have been using the Crtmpserver service, in the Crtmpserver service according to their own ideas also added a lot of functions, such as through the HTTP interface to load configuration, such as the lack of support HLS, since the added TS fragmentation level is limited, Reasoning decided to use Simplertmpserver's HLS function. Say dry, immediately find related resources, download, decompression, a smooth,

Environment under Windows SetupFirst, to prepare the work, we need to download the program we need1, Easydarwin:https://github.com/easydarwin/easydarwin2, ffmpeg:http://ffmpeg.org/3, nginx:http://nginx.org/en/download.htmlSecond, build Web services1, modify the Nginx configuration file,One is the port that the Web service listens to, then the Easydarwin service end will use;The other is the Web service root directory, which is where HLS slices and vid

the following background information about each of the preceding color modes: RGB RGB is a color adding mode, that is, the more red, green, and blue colors are added, the closer the color is to white. If you mix the same red, green, and Blue values, you will always get a Neutral gray. To increase the color, reduce the three colors according to the same quantity. The computer's scanners and monitors are based on the RGB color mode, so it describes the natural color mode on the computer

maximum transmission Unit (MTU) maximum of 1500 bytes, when using the IP/UDP/RTP protocol hierarchy, which includes at least 20 bytes of IP header, 8 bytes of UDP header, and 12 bytes of RTP header. This way, the header information takes at least 40 bytes, and the maximum size of the RTP payload is 1460 bytes. Taking H264 as an example, if a frame of data is greater than 1460, it needs to be fragmented and then unpacked to the receiving end and then assembled into one frame of data for decoding

choose to download the same resources at different rates from many different alternative sources, allowing streaming media sessions to accommodate different data rates. When you start a streaming session, the client downloads a extended m3u (m3u8) playlist file that contains metadata to find the available media streams.Client Support iOS starts from 3.0 as a standard feature. Adobe Flash Player supports HLS from 11.0 onwards. Google'

rtmp Live application and delay analysis Original address: https://github.com/ossrs/srs/wiki/v1_CN_LowLatency Author: Winlin Related articles:Take you thoroughly understand rtmpSome considerations for implementing RTMP protocol with live push streamingHow the live platform uses rtmp for low latency video streamingRTMP protocol analysis and interaction processIn live streaming applications, rtmp and HLS can basically cover all clients,

ROBOTSTXT_OBEY = True can ignore these Protocols. Yes, it seems to be just a gentleman agreement. If the website is configured with a browser User Agent or IP address detection for anti-crawler, a more advanced Scrapy function is required, which is not described in this article. Iv. Run Return to the cmder command line to enter the project directory and enter the command: scrapy crawl photo The crawler outputs all crawling results and debugging information, and lists the statistics of crawler r

), ContentProvider added a new method that can be used to make cross-process method calls, as defined in the ContentProvider method:Bundle call(String method, String arg, Bundle extras)In terms of ease of use, this is not aidl so troublesome, and more extensibility, and no broadcast too dependent on the system, API 11 should be the main drawback, and other shortcomings temporarily did not find, welcome to add. BroadcastBroadcast is the simplest: the advantage is that the task of distributing

") directly displayed with images; cell. picImageView. image = item. newsPic;} cell. titleLabel. text = [NSString stringWithFormat: @ "indexPath. row = % ld ", indexPath. row]; return cell;}-(CGFloat) tableView :( UITableView *) tableView heightForRowAtIndexPath :( NSIndexPath *) indexPa Th {return [NewsListCell cellHeight];} // start to download the image-(void) startPicDownload :( NewsItem *) item forIndexPath :( NSIndexPath *) indexPath {// create the image download tool ImageDownloader *

Introduction Previously, I used scrapy to write some simple crawler programs. However, my demand is too simple. It is a little tricky to use scrapy, and the disadvantage is that it is too complicated to use, in addition, I do not like twisted very much. It is not natural to use Asynchronous frameworks implemented by various callbacks. A while ago, I came into contact with gevent.(I don't know why such a pure technical website will be in progress), not to mention that it is said to be of good per

1. The engine opens a domain, locates the spider that handles that domain, and asks the spider for the first URLsTo Crawl.2. The engine gets the first URLs to crawl from the spider and schedules them in the schedider, as requests.3. The engine asks the scheduler for the next URLs to crawl.4. The scheduler returns the next URLs to crawl to the engine and the engine sends them to the downloader,Passing through the d