rtp 3000

I. IntroductionH.264 is the latest video coding standard for ITU-T, known as ISO/IEC14496-10 or MPEG-4 AVC, and is a new product jointly developed by the video coding Expert Group of Motion Image Expert Group (mPEG) and ITU. H.264 is divided into two layers, including the video encoding layer and network adaptation layer. The video encoding layer processes block, Macro, and chip data and tries its best to be independent from the network layer. This is the core of video encoding, including many t

consists of a 1-byte header, three fixed-length fields, and an uncertain number of encoding segments. Header mark Syntax: NALU type (5bit), importance indication bit (2bit), and prohibition bit (1bit ). NALU type: 1 ~ 12 used by H.264, 24 ~ 31 is used by applications other than H.264. Importance indication: indicates the importance of the nal unit for reconstruction. The greater the value, the more important it is. Bit prohibited: when the network discovers that the nal unit has a bit error, yo

numbers are not enough. The SIP messages use the "encoding defined in SDP" [RFC2327] to describe the IP addresses and TCP or UDP ports used by the Various media. Audio and video are typically sent using RTP [RFC3550], which requires two UDP ports, one for the media and one for the C Ontrol Protocol (RTCP). SDP carries only one port number per media, and Huitema standards Track [Page 1] RFC 3605 RTCP attribute in SDP Oct

a single first-class transmission after the video and audio streams are reused, the support of MPEG-2 ts over IP for multi-track, multi-word screen and future interactive scenarios needs to encapsulate all stream information in a unified manner, this is a waste of bandwidth that users do not need. If video communication, VoIP and other traffic business, MPEG-2 ts over IP Mode also need to expand to support. 2. Support for Business Performance Isma introduces the

H.264 is the latest video coding standard for ITU-T, known as ISO/IEC14496-10 or MPEG-4 AVC, and is a new product jointly developed by the video coding Expert Group of Motion Image Expert Group (mPEG) and ITU. H.264 is divided into two layers, including the video encoding layer and network adaptation layer. The video encoding layer processes block, Macro Block, and chip data and tries its best to be independent from the network layer. 264 is the latest ITU-T video coding standard, known as ISO/I

I. Introduction Ortp is a database that supports RTP and rfc3550 protocols. It has the following features:(1) It can be written in C language and can work on Windows, Linux, and UNIX platforms.(2) implements the rfc3550 protocol and provides easy-to-use APIs. Multiple configurations are supported. rfc3551 is the default configuration.(3) supports multiple RTP sessions in a single thread and adaptive jitter

It is found that project log processing by O M colleagues is convenient and worth learning. Even in the development environment, this process is good.For example, the project RTP is deployed under the/home/www/RTP directory.Create the/usr/userfile/logs directory to store logs.Create the/home/www/defonds-config/RTP directory to store configuration files (such as

dialog_initialize_rtp function to initialize the RTP information of the peer. Whether the peer has RTP. If yes, the encoding is set. When setting the RTP engine, it must be noted that the RTP protocol stack was greatly changed at the beginning of asterisk1.8. By default, the RTP