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,
(Slide_upload=slide, Format=format_lookup[output]). COUNT () if Count!= 0:p
Rint ' There is already a%s file for this slide '% output continue content = Self.download_content (https_link)
Assert content isn't none,\ ' There is no content for%s '% format.get (' id ') except Assertionerror, E: Log.error (' A format didNot pass all assertions:%s '% e) continue
Here we have confirmed that everything is OK, so we can store all the video files:
Media = Slidevideomedia ()
Medi
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,
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
One of the most exciting buzz these days in Web circles is about HTML5 and specifically video on html5. HTML5 video tag has solved the age old problem site owners and designers face on how to best Embed video on websites. HTML5 can play video online without Adobe Flash Player. there are more beautiful HTML5 video interface built in, including a set of controls (play/pause etc .), so you don't need anything else to play video in them. so here are 10 best free HTML5 video players. The free HTML5 V
of IE does not recognize the new HTML element. However, you can use some JavaScript or CSS solutions to compensate for this flaw.
Html5shiv: This script enables IE to recognize HTML5 elements.
HTML5 Enabler: function is similar to Html5shiv.
Modernizr: It enables developers to fully exploit HTML5 and CSS3 features in browsers that support HTML5 and CSS3 without sacrificing the control of browsers that do not support these new technologies.
HTML5 Reset: It provides a set of HTML, CSS files t
the current band.
Optional parameter (string ).
An optional list of category names (effectively class names in a thematic image ).
An optional minimum and maximum value.
An optional offset and scale fortransforming raster values into meaning full values (ie translate height tometers)
The name of the grating. This feature can be used to specify important data.
Explanation of each band, specifically:
Gci_undefined: Default, unknown information.
Gci_grayindex: An Independent gray image.
Gci_palet
official statement is that video broadcast can be divided into collection, pre-processing, encoding, transmission, decoding, rendering these links.Acquisition---is generally mobile, iOS is relatively simple, the model is more agreeable, Android is more complex, because there are many models, need to do the appropriate, the most troublesome PC, a variety of different cameras, microphones, more messy and bad processing.Pre-processing---is beauty or something, to make the host good-looking, many D
Color is important.
Color_palette () can pass in any color supported by matplotlib
Color_palette () do not write parameter the default color
Set_palette () sets the color of all graphs
6 Default Color Cycle themes: deep, muted, pastel, bright, dark, colorblindRound artboards * * * *When you have more than six categories to differentiate, the simplest way to do this is to draw evenly spaced colors in a circle of color space (such tones will keep the brightness and satur
and decodes and plays the video in sequence. In this way, the live video process of "production, transmission, and consumption" is realized.
7. live video business logic
One-to-multiple model:
Broadcaster-- RTMP protocol --"Live streaming media server-- RTMP/HLS protocol --"Audience (fans)
RTMP Protocol: low latency and fast transmission speed. (The host uses this Protocol to upload video data to the server immediately)
Recently, I am working on decoding projects and have access to a lot of open source code. I think it is fun, just like a project similar to online live video forwarding.
It happened that Brother Chen bought a server and wanted to borrow his server trainer, haha.
After checking the relevant information, I found a lot of good open source code for reference. I would like to find SRS, FFMPEG, live555, etc.
Yang, the initiator of SRS, seems to have opened a company named Guan chuangxiang in Bei
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