webrtc h264

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WEBRTC's Voice Activity Detection (VAD) algorithm

Reproduced in the original: http://blog.csdn.net/shichaog/article/details/52399354 thank you very much. Vad (voice Activity Detection) algorithm is to detect the voice , in the far-field speech interaction scenario, VAD faces two challenges: 1. How to successfully detect the lowest energy voice (sensitivity).2. How to successfully detect in the multi-noise environment (detection rate and false detection rate).The missed response is originally the voice but not detected, and the virtual detection

Separate compilation of audio processing modules using WEBRTC _ Audio and video

It is not recommended to compile individual modules in the WEBRTC separately for use. Yesterday, I was fortunate enough to ask the Google forum about the delay in computing the AECM module, and Project member said churn this delay actually didn't help the AECM effect, which only sped up the convergence of the built-in latency estimator when the AECM started, and if the delay in the update was incorrect, it would even make AE The CM built-in delay

Install Apche in Linux and add the h264 Module

Gentoo: * Use emerge to install ApacheEmerge Apache * Compile and install the h264 ModuleCD/tmpWget http://h264.code-shop.com/download/apache_mod_h264_streaming-2.2.7.tar.gzTar-zxvf apache_mod_h264_streaming-2.2.7.tar.gzD/tmp/mod_h264_streaming-2.2.7./Configure -- With-apxs = 'which apxs2'MakeMake install * Modify the Apache configuration file/etc/Apache/httpd. conf.Loadmodule hsf-_streaming_module/usr/lib

H264 es stream file distinguishes frame boundary by calculating first_mb_in_slice

I recently encountered a problem about how to read a complete frame of data when reading an h264 file. Using the elecard stream analyzer tool, combined with the new generation of video compression coding standard-h264/AVC (second edition), and find and summarize on the Internet as follows: First, the nal syntax, titles syntax, and nal_unit_type semantics must be known: The above two figures are taken from

Key extension data processing for decrypting H264 and AAC hardware decoding

In the previous article, we used ffmpeg to separate the audio and video data from a multimedia container, but it is possible that the data could not be decoded correctly. Why is it? Because the decoder needs to be configured before decoding the data, it is typical of the current popular HD coded "Golden Partner" combination H264 + AAC . This article will describe the key decoding configuration parameters of H264

Streaming Media Essentials Brief: How to get pts in H264 data?

Current Location: Home > Streaming Media Development > streaming Media Development > Streaming Media Essentials Brief: How to get pts in H264 data. Jackyhwei posted on 2011-10-08 09:15 click: 2,105 times From: Hi.baidu.com/zorru The Base_clock of PTS here are calculated in terms of 1000 (milliseconds), and if reused in TS, the Base_clock is 90k, so it should be multiplied by 90. About the

Use x264 and ffmpeg to encode YUV as. H264 (2)

Then the previous article http://blog.csdn.net/openswc/article/details/51597755 Second, the ffmpeg will be YUV encoded as. H264 1. Download and install FFmpeg ./configure--enable-libx264--ENABLE-GPL--enable-sharedMakeMake install 2. Use the installed ffmpeg with the command to encode YUV as. H264 Ffmpeg-s 480x272-i ds_480x272.yuv-r 25-vcodec libx264 ds2.h264 YUV

Deploying turn Server for WEBRTC applications

When deploying WEBRTC or SIP-to-peer scenarios, you will often encounter environments that are not penetrated by peerThis is where the tunserver comes in.Here we use turnserver-0.7.3Download confuse dependent librarieswget http://savannah.nongnu.org/download/confuse/confuse-2.7.tar.gzTar zxvf confuse-2.7.tar.gzCD confuse*./configureMake make installDownloadwget http://downloads.sourceforge.net/project/turnserver/turnserver-0.7.3.tar.bz2Tar jxvf turns

TELEMCU Video Conferencing Android version WEBRTC client Support

This article original from Http://blog.csdn.net/voipmaker reprint annotated source.The latest version of TELEMCU adds Android phone-side WEBRTC video conferencing capabilities, Android phone installs Chrome browser after loading TELEMCU WEBRTC client TeleWeb can directly participate in video conferencing,At the same time, TeleWeb can support two WEBRTC client-to-

Android IOS WebRTC Audio Video Development Summary (19)-Kurento

Transferred from: http://www.cnblogs.com/lingyunhu/p/4232348.htmlToss for one weeks to finally set up the environment of Kurento (development stage of the product, some bugs to solve their own), so write a separate document to introduce.The following starts to introduce Kurento, the article from the blog Garden Rtc.blacker, reproduced please explain the source.What is Kurento?Video conferencing involves a one-to-many, many-to-many, broadcast, transcoding, mixing, co-screen, recording, which requ

WebRTC Point-to-point video calling system

WebRTC Point-to-point video calling system Main functions:1, based on the WebSocket online user list;2, use WebSocket as signaling channel, build WEBRTC video call.Github:https://github.com/graceup/webrtcDevelopment Ide:myeclipse 8.6 Engineering Code: UTF-8Environmental requirements: 1, TOMCAT requires more than 7.0 of the versionNote: When deploying, you need to change "ws://localhost:8080/" in the Js/con

WebRTC APPRTC (i) Environmental configuration detailed steps and pit summary

WebRTC really is not very good to get, currently only the PC-side web page and mobile phone-side web page video. But there are still some problems. 1, both must use Firefox 2, feel pc-side camera shot out of the screen can also, the phone side a little bit of spending 3, enter the room after a period of time to show two video ~~~~APPRTC demo has not been tuned, the problem in Turnserver , and then sent the article. There are a lot of APPRTC on the Int

Google provides an example of WEBRTC using Turnserver way

Google's Turnserver download method:svn checkout http://rfc5766-turn-server.googlecode.com/svn/branches/v3.2/ Rfc5766-turn-server-read-onlyAbout the application of WEBRTC Google gives an example:https://apprtc.appspot.com/(need FQ, sometimes fq may not be able to land, it is estimated that the use of too many people)I was always curious about the way he used turn, and then finally figured out what was going on. Take a look at the following characters:

Compile and use WEBRTC Audio noise Reduction Module (NS) separately

reproduced in the original: http://www.cnblogs.com/mod109/p/5469799.html thank you very much. The WEBRTC audio processing module is divided into noise reduction ns, Echo cancellation AEC(Echo control Acem), Automatic control gain AGC, Mute detection section. In addition WEBRTC has encapsulated a set of audio processing module APM, if it is not a special need, if users want to use the echo cancellation and

Local Audio collection of WEBRTC

Reprint Please specify source: http://www.cnblogs.com/fangkm/p/4374668.htmlThe previous blog introduces the local video collection, this article introduces the audio capture process, but also introduces WEBRTC native audio collection, and then introduces chromium source to its customization.1. WebRTC native Audio captureLet's first introduce the interface concepts in WE

[Transfer to]WEBRTC Learning: Deploying Stun and turn servers

[Transfer to]WEBRTC Learning: Deploying Stun and turn serversHttp://www.cnblogs.com/lingdhox/p/4209659.htmlThe WEBRTC-to-peer penetration part is implemented by Libjingle.The sequence of steps is probably this:1. Try direct Connect.2. Penetrate through the stun server3. Cannot penetrate through the turn server relay.Stun server is relatively simple. There are also many public stun servers available for test

Local Audio collection of WEBRTC

Transferred from: http://www.cnblogs.com/fangkm/p/4374668.htmlThe previous blog introduces the local video collection, this article introduces the audio capture process, but also introduces WEBRTC native audio collection, and then introduces chromium source to its customization.1. WEBRTC native Audio captureLet's first introduce the interface concepts in WEBRTC t

Audio and video based on WEBRTC technology, IM Solutions

This article original from Http://blog.csdn.net/voipmaker reprint annotated source.Based on WEBRTC technology, you can achieve point-to-point audio and video, instant messaging, video conferencing, and the latest system components include:Teleice NAT Traversal server:Standard-based NAT traversal protocol ICE for NAT traversal, audio-video-to-peer transmissionSingle machine supports tens of thousands of concurrentTELEMCU Video Conferencing Server:Imple

Webrtc-web Application Related Websites

Very interesting website http://io13webrtc.appspot.com/#1HTML5 about using WEBRTC http://www.html5rocks.com/en/tutorials/getusermedia/intro/HTML5 example of setting resolution https://simpl.info/getusermedia/constraints/HTML5 examples of various special effects http://webcamtoy.com/zh/app/Examples of HTML5 recordings http://www.webaudiodemos.appspot.com/AudioRecorder/index.htmlGoogle's latest HTML5-based code HTTPS://GITHUB.COM/GOOGLECHROME/WEBRTCSIPM

WebRTC Audio and Video synchronization method

016-11-25 DORAWEBRTC series Wind net WEBRTC series Wind Net Source: Wind NET Series Author: Weizhenwei, fan network columnist Audio and video synchronization is the most intuitive user experience for multimedia products, and is the most basic quality guarantee for audio and video media data transmission and rendering playback. If the audio and video is not synchronized, it is possible to cause delay, lag, etc. that affect the user experience very much

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