Turn from: http://blog.csdn.net/jwybobo2007/article/details/7054140
Network Abstraction Layer Unit type (NALU):
The Nalu header consists of a byte, and its syntax is as follows:
+---------------+|0|1|2|3|4|5|6|7|+-+-+-+-+-+-+-+-+| F| nri| Type |+---------------+
F:1 a bit.Forbidden_zero_bit. The H.264 specification stipulates that this one must be 0.
Nri:2 a bit.NAL_REF_IDC. Taking 00~11 seems to indicate the importance of this nalu, such as a 00 NALU decoder that can discard it without affecti
Last time I talked about the XMPP protocol, this encounters another protocol, RTP. xmpp:http://blog.csdn.net/shinichr/article/details/23832157
Concept:
RTP English name is real-time Stream Protocol, as the name implies a very high real-time protocol. This protocol is similar to the HTTP protocol, which is plain text to send the message, the difference is that RTP
The sub-Community is a discussion group focusing on specific technical topics, where you can speak with like-minded partners. If a geek headline reader focuses on or joins the sub-community you create, they canSub-community, and in your own kanban, view the speeches here. The elite content of the sub-community can also be seen by all users of the geek headlines.Before you apply to create a sub-community, consider the following questions:1. After creating a sub-community, are you willing to devo
my average monthly Taobao customer revenue is over 3000 yuan. In addition, these websites are doing very low index keywords without competition, I don't have high requirements. I just need to go to the first page of Baidu's search results. There are dozens of IP addresses every day, so I don't need to update them, update once or twice a month. Another job is to exchange 3 to 5 links each month. It's that simple. What you need to do is
the pieces of the staves destroyed, only a small piece fell here, thus turning into a snow tree, the annual growth of only cubic centimeters. You must watch it up close. I heard that the ice attribute mage Warrior in the snow tree underground cultivation, the pace of cultivation will increase 2%! This tree is the pride of the Kingdom of ice and snow. ""Is there another place?" ”"Oh, at that time the ice Tree City shopping street!" There are all kinds of mainland fashion, luxury leather goods,
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Over the past half a month, Sun @ project management successfully broke into the blog Park, with 3000 million people !!
Thank you! Thank you !!
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This achievement was not expected by Sun, so he was very happy. Better than Obama's election as President!At the same time, the enthusiastic support of bloggers in the blog garden also touched the old sun.
This score is a great encouragement to Sun Tzu.Sun wil
The server architecture involved in this article is mainly for Small and Medium-sized websites of about 3000 people/15 minutes. It is mostly seen in discuz! Communities built on forums, etc.The environment is composed of Linux (kernel 2.6 +), nginx, PHP (FastCGI), MySQL, and other highly efficient open-source software, which is the first choice for ordinary webmasters,But for some enterprises, this solution is also a very good choice!
As for the Perfo
to see this, you should know that I am not a title party, and this article may be called "how to apply the refactoring idea in programming, but I don't want to use such a serious title.Many Programming beginners, or those who have years of programming experience, feel that it is very difficult to read other people's code, and refactoring is even more difficult to talk about. They either sigh with these codes or overwrite them. However, if we are aware of refactoring and are familiar with some c
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about 3000 notebook recommended: Lenovo small new air
Reference Price: 2999 RMB
Recommended reasons: 1080P Full HD screen, lightweight and portable
Lenovo small new Air 12 cloud Notebook is a very popular small screen lightweight version, the use of all-metal fuselage design, fuselage thickness of only 13.4mm, less than 1.5kg weight, fuselage top design is very simple. The smooth surface of the book only left a Lenovo words, this sty
The following small series hereby brings 3000 Yuan six generation i3-6100 set of Office configuration recommended, this configuration for Office users to fully meet their needs, and in the Office experience will find that the efficiency is very high. Words are not much, the following directly on the configuration list and reference quotes.
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Web DesignerPublishing Enterprise VV Vision TechnologyWork Place Hainan Province SanyaNumber of recruits 1-2 peopleAge requirement under 30 years oldGender requirementsEducation requirements to see abilityProfessional requirementsExperience requires speaking in a workSalary of more than 3000 per monthRelease date 2008-8-15Expiration Date 2008-8-22Job Description Company Division of labor is relatively thin! This position is mainly responsible for the
Author: Water as smoke
Namespace LzmTW.uSystem.uWindows.Win32APIFriend Class ErrCollection03Private Collection as New Dictionary (of Integer, String)Private Shared Loader as ErrCollection03Private Shared Ginternalsyncobject as ObjectPrivate Sub New ()With Collection. ADD (3000, "Unknown print monitor specified"). ADD (3001, "The specified printer driver is currently in use"). ADD (3002, "buffer file not found"). ADD (3003, "StartDocPrinter call not S
Before writing a Demo about APNs, it is ready to run.
Now, you want to add APNs features to your existing app.
Need 1-3:
1. Re-apply for certificate enabling push notifications
2. Re-build the description document provisioning profile
3. Modify app unique ID consistent with Appids settings
Problem: Unable to register Remote notifications
Did Fail to Register for Remote notifications with Error:error domain=nscocoaerrordomain code=3000 "no val
, chassis and other hardware equipment. The above set of computer configuration can be regarded as a game enthusiasts have a reference to the cost-effective computer configuration, but also fully meet the needs of a set of computer configuration. Of course, if these are to give you a reference, the end is to come to their own choice.
Users in the purchase of computer selection configuration, first of all, you have to consider their own user needs, such as you need to play a special game, or hom
Real-time transmission protocol (RTP) provides end-to-end transmission services with Real-Time Characteristics for data, such as interactive video audio or analog data under multicast or Unicast Network Services. Applications usually run RTP on UDP to use its multi-node and verification service. Both protocols provide the transport layer protocol function. However, RTP
RTP and Rtcp explain. Include sync timestamp
RTP is real-time transport protocol abbreviation, is designed to transmit streaming media data, has a wide range of applications, other related to the introduction of their own to see the RFC, I do not intend to discuss these boring conceptual things.
(1) Understanding RTP
It can be said that the
1. Applicable
H.264 Video Transmission Mechanism
RTP is discussed earlier.
Protocol and the basic stream structure of H.264, how can we use RTP to transmit H.264 videos? An effective method is to strip each NALU from the H.264 video, add the corresponding RTP Header before each nalu, and then send packets containing the
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