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two sub-protocols, RTP and RTCPData Transfer Protocol RTP, for real-time transmission. The protocol provides information such as timestamp (for synchronization), serial number (for packet loss and reorder detection), and payload format (the encoding format used to describe the data).Control Protocol RTCPfor QoS feedback and synchronous media streaming. Compared to RTP, the bandwidth of RTCP is very small,
function of video-on-demand system is that the video files of various formats (such as Vcd/dvd/wav/avi/mpg/mp3) can be transcoded into the streaming media format (asf/wma/flv etc.) which is supported on the network, so as to realize the unified management and sharing utilization of AV content.Of course, in the data format transcoding process can be the
flowing out to reach the destination in time for playing. To ensure that the playback will not be interrupted when the network speed decreases due to blocking, the player collects a small portion of the so-called buffered preparation data before starting playing the video. If the data flow speed remains fast enough, the playback is continuous. Whether the file is 30 seconds or 30 minutes long, the user only generates this buffer data several seconds
. There are many other application examples, such as using RealPlayer to "watch videos or listen to music in Real Time". This instant dial-up method is play as played Ed. We call this technology videostreaming technology.
Why is it time for video streaming technology? In the simplest case, you may want to listen to the music content before downloading MP3, and the method of downloading music clips is not fr
Recently, the video client has been transplanted to the Android platform. Share your development experience.
Similar to HTTP live streaming stream download, however, Apple's TS format has too much redundant data. I use private format, which saves more bandwidth resources. H264 + amrnb encoding. Each multipart file takes 20 seconds. The overall architecture is as
There are two basic requirements for achieving a stable viewing experience in web-based high-definition digital video transmission. First, the video provider needs to support a higher video transmission bit rate on the network. Second, the client computer needs to support continuous processing capabilities to decode the video
files obtained from the server in order, the live video is realized. It can be seen that HLS is basically achieved by means of VOD technology. Because data is transmitted over HTTP, you do not need to worry about firewall or proxy issues, and the length of the segment file is very short, so the client can quickly select and switch the bit rate, to adapt to playback under different bandwidth conditions. How
Now the continuous development and progress of network technology, the arrival of big data, so that network bandwidth increases rapidly. Because of the progress of the Times, the network and streaming media technology to show the opportunity and display, and also for the campus video Live network transmission audio and video
than twice that of MPEG4. However, given the limited bandwidth of the current GPRS Service, we have to use H. 264 is the preferred codec solution. After all, it consumes less bandwidth. Let's take a look at the MP4 file format. In fact, the MP4 file format is the same as the 3GP file format, and all files comply with the ISO standard format. For specific format definitions, see ISO/IEC 14496-14 MP4 file fo
. shoutcast/icecast ). stream-2-Stream (abbreviated "s2s" or "S2S") stations have no user limit; stations can be set up without paying a fortune for bandwidth. stream-2-Stream saves bandwidth by passing streams from one peer to another through multicast and unicast p2p, rather than everyone getting a stream from one central server (Shoutcast/Icecast ). more: http://s2s.sourceforge.net/about.php Open Source
a higher data compression ratio. Under the same image quality conditions, H.264 data compression ratio can be 2-3 times higher than the MPEG-2 used in the current DVD system, 264-2 times higher than the MPEG-4. Because of this, video data compressed by H.264 requires less bandwidth and is more economical during network transmission. When the MPEG-2 requires a 6 Mbps transfer rate match, H.264 only requires
can be 2-3 times higher than the MPEG-2 used in the current DVD system, 1.5-twice times higher than the MPEG-4. Because of this, after H.264 compressed video data, in the network transmission process needs less bandwidth, but also more economical. When the MPEG-2 requires a 6Mbps transmission rate match, the H.264 only needs the 1mbps-2mbps transfer rate. Streaming
FLV video is already the majority of video sites preferred video type, domestic and foreign famous video sharing station YouTube, Youku, potatoes, Sina Blog, Qiyi and so on are all Flash Player Flv/mp4 video.
FLV has two modes of publishing
One, ordinary HTTP way: This met
need to be downloaded and will be slow to browse this page for the first time.
2. The use of ActiveX control requires permissions, the default IE browser will pop up the box installation, and if the ActiveX control does not pass the Microsoft digital signature, IE browser is not allowed to install, you need to set the security level of IE browser to install. Ordinary users can be very cumbersome to operate.
3. ActiveX control can only be used in IE core Browser, unable to support Chrome, Firefo
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