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order is i1p4b2b3 p7b5b6i10.B8b9 basic video streams (ES) and audio es. A time benchmark is also added to the video es, that is, the 27mhz clock retrieved from the video signal is added. Then, they are formed through their respective data packets.To package the corresponding es into a basic stream (PES) package and the PES package. Finally, program multiplexing and transmission multiplexing combine the vid
TR 069 is a protocol proposed by DSL Fourm, that is, the CWMP protocol, mainly for the management of user terminal equipment.Its functions are mainly composed of two pieces of ACS (Auto Config Server) and CPE (Customer pression equalment). Its specific functions, please refer to the TR-069 protocol, the network is also introduced, there is no more to say.Recently, the company received a project to monitor and manage the performance of the telecommunic
Presumably, you should be familiar with ADSL and other access methods. We have learned that PPPT, PPPoE, and PPPoA should be available. So what are the differences and associations between the three access methods? Let's take a look at it in detail. First, let's look at the concept of the Bridge CPE method. 1) Bridging Mode: equivalent to connecting to a HUB. IP addresses must be set at both ends. For example, if the adsl modem works with the computer
it is a key frame (I do not know why it is a key frame, please google) During packaging, F and NRI of fuindicator are f and nri in the nal header, and type is 28. S, E, and r of the Fu header are set according to the starting position of the shard, type is the type in the nal header.When unpacking, take the first three digits of the Fu indicator and the last five digits of the Fu header, that is, 0110 0101 (0x65) is of the nal type. 3. RTP load PS stream The following PS encapsulation is made
MPEG2 systems. ES is a data stream directly from the encoder. It can be a collectively referred to as an encoded video data stream, audio data stream, or other encoded data streams. The es stream is converted to the PES package after it passes through the PES package. The PES package consists of a packet header and payload. The specific format is as follows: We
passes through the PES packager, it is converted into a PES package . The PES package consists of Baotou and payload , and the specific format is summarized as follows:You can see that Pts/dts is in the PES package , these two parameters is the key to solve the video-audio synchronization display, to prevent the decod
streams. The es stream is converted to the PES package after it passes through the PES package. The PES package consists of a packet header and payload. The specific format is as follows: We can see that PTS/DTS is in the PES package, and the two parameters are the key to solving synchronous display of video and audi
analyze the first frame of a TS file (SRS supports the TS file generated by HLS protocol) 1. PAT (Ignore) 2. PMT (Ignore) 3. First FRAME (PES Packet) Usually a frame of data is a PES package. A PES package can typically be split into multiple TS packages (it is also possible to split into only one TS package, that is, the
13818-1 has a description of the program Stream Pack header. The two-bit following the BC is a description of the program Stream map, he is also a kind of PES package, the length of the package program_stream_map_length, here is 5 A, the following data length is 90, Skip this. The following 90byte data is a package starting with E0, E represents the PES package for the gb/txxxx.2 or gb/taaaa.2 video stream
video stream, a stream of audio data , or a collectively referred to as his encoded data stream .The es stream is converted into a PES package after it has been through the PEs packager . The PES package consists of Baotou and payload , and the specific format is summarized as follows:You can see that Pts/dts is in the PES
disk is actually divided into PES, because the default PE size is 4 M. This is our first step. 2. Create a VG (Volume Group) After formatting the hard disk to PV, the second step is to create a volume group, that isVG(Volume Group), Volume groups here we can abstract them into a space pool, VG is used to install PE, we can add one or more PVS to VG, because the hard disk has been divided into multiple PES
ISO/IEC-13818-1: system part; ISO/IEC-13818-2: video; ISO/IEC-13818-3: audio; ISO/IEC-13818-4: consistency test; ISO/IEC-13818-5: software part; ISO/IEC-13818-6: digital storage media command and control; ISO/IEC-13818-7: Advanced Audio Encoding; ISO/IEC-13818-8: Real-time interface for system decoding; MPEG2 system tasks include: 1. Protocol for data transmission in packages; 2. The protocol that specifies the synchronization of data streams between the sending and receiving ends; 3. Provides m
TR 069 is a protocol proposed by DSL fourm, that is, the cwmp protocol, which mainly manages user terminal devices.Its functions mainly consist of ACS (auto config server) and CPE (customer expression compliance ). Its specific functions please refer to the TR-069 protocol, the network also has an introduction, here no longer said.Recently, the company received a project to monitor and manage the performance of the AP (Access Point) device of China Te
become the current network builders the primary task. In the process of IPv6 transition, Nat444+ds and Ds-lite are the most discussed technical solutions in the metropolitan area network. Nat444+ds Technology: For IPV4 business, through the two-level NAT44 implementation of the load, the first level NAT44 in the home network CPE side, the realization of user private IPV4 address to the operation of private IPv4 address mapping, the pattern is 1:1 m
the PES package after it passes through the PES package. The PES package consists of a packet header and payload. The specific format is as follows:We can see that PTS/DTS is in the PES package, and the two parameters are the key to solving synchronous display of video and audio and preventing the input cache overflow
, transmission distance, version information, bias Current, supply voltage and other information.3) Display Pon-statistic interface pon interface-number: View PON interface traffic statistics, including see Pon interface receive frame, receive byte, up and down Ethernet frame statistics, up and down line real-time traffic, etc.4) Reset Pon-statistic interface pon Interface-number: Clears the message statistics for the specified epon and Gpon interfaces.Ten, ADSL interface configuration and manag
operator does not have any access network resources. Even if the municipal department permits the construction of underground pipelines, the investment is not only very expensive, but irreversible. Therefore, carriers are looking for new access methods to replace wired access. New access methods must meet the convenient, fast, and cost-effective conditions to be accepted by operators. In the WIMAX environment, it is a good solution to provide users with comprehensive voice and data services thr
Software-defined devices enable group customer access networks to adopt SDNLandor PMC Senior Communications product ManagerSDNThere has been a lot of discussion on this subject in the industry, and there are various arguments within the operatorPMCin the past two or three years, we have been discussing the supply chain and technical practice,SDNis a very large and complex issue, and there are general indications that operators are interested in getting the group's Customer Access Network (herein
Siemens, Germany, has launched a full range of DSL solutions to support the rapid development of the communications industry in response to the broadband and data features of communications networks. Siemens, the largest overseas joint venture Beijing International Exchange System Limited (BISC), has introduced the product ——— Xpresslink to China. Xpresslink with Siemens other data products to provide users with powerful, operator-oriented broadband network of the whole solution. ——— Editor Xpr
video data stream, audio data stream, or other encoded data streams. The es stream is converted to the PES package after it passes through the PES package. The PES package consists of a packet header and payload. The specific format is as follows: We can see that PTS/DTS is in the PES package, and the two parameters
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