multicast video streaming

Analysis and Implementation of HTTP live streaming technology I accidentally discovered that I had not written a blog for more than half a year and felt ashamed. In fact, in the second half of 2012, the same thing happened at home, and there was no time. After the Chinese New Year, I finally spent some time in my work and summarized some recent technical achievementsArticleTo share with you. A few days ago, it was also a project requirement and too

color of paint, The RGB mode is often used on the monitor, which is different from the pal or NTSC video standard. Conversion between YUV and yiq The conversion formula between YUV, yiq, and RGB is as follows: Y = 0.299r + 0.587G + 0.114b U = B ━ y V = r y I = 0.877 (R-Y) cos33 platinum 0.492 (B-Y) sin33 Q = 0.877 (R-Y) sin33 + 0.492 (B-Y) cos33 RGB is composed of three primary colors: R, G, and B. Similarly, YUV is composed of three elements: Y, U,

Android audio and video goes deep into FFmpeg to implement Rtmp-based streaming (with source code download) and ffmpegrtmp Source Code addressHttps://github.com/979451341/Rtmp1. Configure the RTMP Server I don't want to post two blogs on mac and windows respectively. Set up an RTMP server on MACHttps://www.jianshu.com/p/6fcec3b9d644This is on windows, and the RTMP server is set up (crtmpserver and nginx) H

data, it can also be h264-encoded video data, or h263-encoded video data used by early mobile phones. Of course, the sound can be AAC, amrnb, or something else. All of these are OK as long as the decoder supports them. This is like Program , Or a decoder. Then, you can randomly draw a streaming media Video Frame Desig

Android audio and video goes deep into the 16 FFmpeg streaming mobile phone camera to achieve live broadcast (with source code download), androidffmpeg Source Code addressHttps://github.com/979451341/RtmpCamera/tree/masterAfter configuring the RMTP server, paste it here.1. Configure the RTMP Server I don't want to post two blogs on mac and windows respectively.Set up an RTMP server on MACHttps://www.jianshu

Http://www.cnblogs.com/skyseraph/archive/2012/04/04/2431771.html 1 hard Coding Soft Encoding Hard Coding: By calling the camera recording video that comes with the Android system, it actually calls the underlying HD encoding hardware module, that is, the video card, which does not use the CPU and is fast. Soft Encoding: Use the CPU for encoding, such as common C/C ++ code. Generally, the binary files gener

At present, with the video on demand, online television, distance education and other network services, the development of large standards, so that the use of streaming media more and more widely, but the users of the problems encountered by this is very numerous. Q: When I play rm/rmvb using Media player Classic, I often have problems such as inability to play, no images, abnormal speed, no playback after

How to Use expression encoder to publish a Silverlight streaming video to a blog? Today I saw an article in my blogArticleAdd the Silverlight application step by step on your page. Do it step by yourself. The test was successful, so I was excited for a while. However, looking back, I found it was a little troublesome. The following describes a quick and convenient method. If you have not read any of the ab

Audio and video parameters of streaming media Definition Resolution is an important concept related to images. It is a technical parameter for measuring the expressiveness of image details. High resolution is an important prerequisite for ensuring the clarity of the Color Monitor. Resolution indicates the precision of the screen image, that is, the number of points that the display can display. Generally, t

The Code In this lab you will implement a streaming video server and client that communicate using the Real-Time Streaming Protocol (RTSP) and send data using the Real-Time Transfer Protocol (RTP ). your task is to implement the RTSP protocol in the client and implement the RTP packetization in the server. We will provide you code that implements the RTSP protoco

[Streaming media] Android real-time video collection/encoding/transmission/decoding/playback-Solution Research (initial) Skyseraph Mar 23rd 2012 Email: zgzhaobo@gmail.com QQ: 452728574 Real-Time Video Stream collection Solution 1: Set setpreviewcallback in Android camera shooting preview to implement the onpreviewframe interface to capture

Stefan Winkler and others in the paper, "Video quality Evaluation for Internet streaming Applications", introduces the methods of video quality evaluation of streaming media, and their research results, recorded here. Note: The single-stimulus continuous quality evaluation method (SSCQE) is used in this paper, which is

A friend sent a video to record and download the video. he found the tool to download and synthesize the video. he cached the url of the corresponding streaming media, it can be downloaded or merged by url. we recommend that you download the streaming media file at the speci

"Streaming media" Android real-time video encoding-h.264 hard-codedSkyseraph APR 4th 2012Email:[email protected].com 1 hard-coded Soft-coded hard-coded : by calling the Android system's own C-Amera recording video, actually calls the underlying HD encoded hardware module, that is, the graphics card, not using the CPU, Fast Soft Coding : Use the CPU to en

, video codec protocol, by setting parameters can be completed based on mpeg4,h.264 and other protocols, based on efficiency, decided to use x264 softIOS supports AAC audio soft coding and hard coding, hard-coded without CPU consumption, high efficiency, and decision to use hard knitting. Using the audio Queue3. Technical flowchart4 Related Technologies(1) X264 encoderx264 is a GPL-licensed video encoding f

the sampling frequency is the sampling period or the sampling time, which is the time interval between the samples. The popular speaking sampling frequency is refers to the computer each second gathers how many sound samples, is describes the sound file the quality, the tone, the measurement sound card, the sound document standard. In today's mainstream acquisition card, sampling frequency is generally divided into 22.05KHz, 44.1KHz, 48KHz three levels, 22.05KHZ can only achieve FM broadcast so

)!=0) {printf ("couldn" t open InputStream (cannot open input stream) \ n ");return-1;}3. Write the callback function yourself and fetch the data from the input source. The sample code is as follows:CallbackIntread_buffer (Void*opaque, uint8_t *buf,intbuf_size) {Hibernate, or it will all be sent at onceif (Pkt.stream_index==videoindex) {Avrational time_base=ifmt_ctx->streams[videoindex]->time_base;Avrational Time_base_q={1,av_time_base};int64_t pts_time = Av_rescale_q (Pkt.dts, Time_base, time_b

); returntrue_size;}Else{return-1;}}Service side: Forgive me a mobile development does not understand the server side, presumably should be to get live stream upload video streaming and then broadcast. So just skip it.Play side: The player is actually a player, there are a lot of solutions, here is the simplest, because a lot of live software playback and the client are the same software, so here directly u

complete:Third, after the installation is open and through the browser to access the IP address of http://The Web Management Server port, such as: Http://192.168.1.160:9085/vmsCommon operations commands for Linux1. CD into the folder2, CD. Go to current folder3. cd. Go to previous folder4. mkdir Create Folder5. ll view the detailed catalogue contents6. LS View all directory names7, TAR–ZXF to extract file name extract files8./install installation files9. DF View Partition Directory10, rm–r–f De

Document directory ① Use mediarecoder ② Use localsocket ③ Mediarecorder Problems Http://www.cnblogs.com/skyseraph/archive/2012/03/31/2427593.html 0 This article is only a series of coherence. In fact, mediarecoder has been used in the previous series of blog posts. For details, see the previous Android series blog Android (19) 1 Overview Use mediarecorder of Android to bind localsocket to the setoutputfile function. 2 knowledge points ① use mediarecoder For more information, see [questio