Recently experiment how to let WEBRTC support H264 code, record, for people who need reference.
To illustrate, I was compiling the WebRTC under Ubuntu Server 14.04, using the native (c + +) API to develop WebRTC applications. So my adjustments are based on the native code.
The end result is that the browser can send a
Recently experiment how to let WEBRTC support H264 code, record, for people who need reference.To illustrate, I was compiling the WebRTC under Ubuntu Server 14.04, using the native (c + +) API to develop WebRTC applications. So my adjustments are based on the native code.The end result is that the browser can send a vi
WebRTC represents the best technology in the field of real-time communication since the date of birth. But for a long time, it supported the video encoder only VP8, and later with H265/VP9 as the representative of the birth of the next generation of video Encoders, WebRTC appeared VP9 Codec. The most widely used H264 has been kept out of sight. Until Cisco announ
The text of this text connection is: http://blog.csdn.net/freewebsys/article/details/47174209 not allowed to reprint without the Bo master.1, Encounter problemsFirst of all, WEBRTC is a very good open source project, it is a company that specializes in this, was acquired by Google and then open source projects.You can quickly build a video chat project, and you can compile it yourself.Https://github.com/pristineio/
H264 code Stream parsing, online has a lot of open source files;
The general analysis is: Obtain Nalu,sps,pps,nalu type,slice type, obtain QP and so on;
The computation can be obtained by the bitwise operation of C + +, but the structure can be obtained directly.
Here is the WEBRTC in the H264 parsing Related:
In the WEBRTC
higher quality network video at limited bandwidth. For most professionals, the h.265 coding standard is not unfamiliar, it is itu-tvceg after the development of the video coding standards. The h.265 standard mainly revolves around the existing video coding standard, which, in addition to preserving some of the original technologies, increases the correlation between the code stream, the encoding quality, the delay, and the complexity of the algorithm. The main contents of h.265 research include
This paper mainly introduces the RTP/RTCP protocol in WEBRTC, Weizhenwei, the earliest published articles in the Wind network, ID:BEFOIOSupport original, reprint must indicate the source, welcome attention to my public number blacker (Id:blackerteam or WEBRTCORGCN).a prefaceThe RTP/RTCP protocol is the cornerstone of streaming media communications. The RTP protocol defines the packet format for streaming media data over the Internet, while the RTCP pr
provides a framework for video capture, encoding, transmission, and display of all functions from the video section.In the architecture diagram, a colored arrow indicates the flow of data from the video stream: from the video capture end, through the network transport layer, to the video receiving end.2. System limitations for WEBRTC:Device Manager can manage up to 10 input devices, and ChannelManager can manage up to 4 channel; Of course, you can also modify these maximum values.The maximum re
"Getting Started with WebRTC" The first chapter WebRTC introduction?This chapter is a conceptual introduction to WEBRTC.after reading this chapter. You will have a clear understanding of the following: . What is WEBRTC . How to use it . which browsers support1.1. WEBRTC IntroductionWorld Wide Web (WWW) is the early day
In "Let WEBRTC support H264 codec" I provide a priority to use the H264 codec thinking. We can verify it on the browser side.
There are three ways to verify: In JS print SDP view Chrome's log chrome_debug.log (see Open Chrome Log) Grab bag using webrtc-internals
The first three kinds are no longer introduced, we look
()); Return Allocatedencoder (adapter_factory. Createvideoencoder (codec), codec, false/* is_external */); } return Allocatedencoder (Internal_encoder_factory_->createvideoencoder (codec), codec, false/* IS_EX ternal */); }//This shouldn ' t happen, we should is not being trying to create something we don ' t//support. Rtc_notreached (); Return Allocatedencoder (NULL, Cricket::videocodec (), false);}As you can see, this will first attempt to call External_encoder_factory_ to create an ext
(Internal_encoder_factory_.get ()); Return Allocatedencoder (adapter_factory.
Createvideoencoder (codec), codec, false/* is_external */); } return Allocatedencoder (Internal_encoder_factory_->createvideoencoder (codec), codec, false/* is
_external */);
}//This shouldn ' t happen, we should is not being trying to create something we don ' t//support.
Rtc_notreached ();
Return Allocatedencoder (NULL, Cricket::videocodec (), false);
}
As you can see, this will first attempt to call Ext
audio and video coding is not the same,So need to have a service to do code stream conversion, such as WEBRTC with the VP8 video encoding, general video conferencing is H264.PSTN (Public switched telephone network), he is a common analog telephone circuit-switched networks, so if the WEBRTC client wants to communicate with the telephone, first of all through the
Uncover the mystery of WEBRTC Media server--WEBRTC Media Server Open Source project IntroductionThe WEBRTC ecosystem is very large. When I first tried to understand WEBRTC, the number of network resources was unbelievable. This article provides some introduction to WEBRTC m
based on 3GPP Ims/rcs and can be used in embedded and desktop systems. The framework is written using ansci-c and is very portable. and has been designed to be very lightweight and effective in embedded systems with low memory and low processing power. The Idoubs feature on the Apple system is based on this framework. Most of the audio and video encoding formats are supported (H264 (VIDEO), VP8 (video), ILBC (audio), pcma,pcmu,g722,g729). NAT support
* encoder_factory, webrtcvideodecoderfactory* decoder_factory)}; 1.2.1.4 src\talk\media\webrtc\webrtcmediaengine.cc Webrtcvideoengine2::webrtcvideoengine2 () : Initialized_ (False), External_decoder_factory_ (null), External_encoder_factory_ (null) { Video_ Codecs_ = getsupportedcodecs ();//Get a list of video codecs (with internal default support and externally introduced, up to 8 external) } std::vector {//reads the default list of video code
skyseraph Blog Park home Bo asked flash new essay contact subscription management essay-190 article-0 Comment-408 "Media" h264-mp4 format and extract H264 SPS, pps and bitstream in MP4 file c2> "Stream Media" h264-mp4 format and extract H264 SPS, pps and bitstream in MP4 file
Skyseraph APR 1st 2012
Email:skyseraph00@16
Introduction:First declare I was just a small intern, if there is not correct, I hope you help correct me.First, WEBRTC basic structureFigure A WEBRTC overall structure, from Baidu EncyclopediaFirst of all, WEBRTC the general realization of the idea: we create a web app, and then call in the app's JS Api,js API will invoke the C + + layer API in the browser, the
first, the network topology structureWEBRTC can also be used as multiparty calls, such as video conferencing, in addition to peer-to-peer communication.
When it comes to multi-party calls, we need to select a schema for our application.
This is a very important decision, because how to organize users is related to the scale of the conference system.
Corresponding to WEBRTC, there are two common network topologies:
Mesh networks and star-shaped netwo
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