3gp vs. Mpeg-4 - Nokia
Nokia Corporation (Finnish pronunciation: [ˈnɔkiɑ]) (OMX: NOK1V, NYSE: NOK, FWB: NOA3) is a Finnish multinational communications corporation that is headquartered in Keilaniemi, Espoo, a city neighbouring Finland's capital Helsinki. Nokia is engaged in the manufacturing of mobile devices and in converging Internet and communications industries, with over 123,000 employees in 120 countries, sales in more than 150 countries and global annual revenue of EUR 41 billion and operating profit of €1.2 billion as of 2009. It is the world's largest manufacturer of mobile telephones: its global device market share was 30% in the third quarter 2010, down from an estimated 34% in the third quarter 2009 and an estimated 33% in the second quarter 2010 Nokia's estimated share of the converged mobile device market was 38% in the third quarter, compared with 41% in the second quarter 2010. Nokia produces mobile devices for every major market segment and protocol, including GSM, CDMA, and W-CDMA (UMTS). Nokia offers Internet services such as applications, games, music, maps, media and messaging through its Ovi platform. Nokia's subsidiary Nokia Siemens Networks produces telecommunications network equipment, solutions and services. Nokia is also engaged in providing free digital map information and navigation services through its wholly-owned subsidiary Navteq.
3GP (3GPP file format) is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services. It is used on 3G mobile phones but can also be played on some 2G and 4G phones.
3G2 (3GPP2 file format) is a multimedia container format defined by the 3GPP2 for 3G CDMA2000 multimedia services. It is very similar to the 3GP file format, but has some extensions and limitations in comparison to 3GP.
3GP is defined in the ETSI 3GPP technical specification. 3GP is a required file format for video and associated speech/audio media types and timed text in ETSI 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS), Multimedia Broadcast/Multicast Service (MBMS) and Transparent end-to-end Packet-switched Streaming Service (PSS
3G2 is defined in the 3GPP2 technical specification
MPEG-4 is a collection of methods defining compression of audio and visual (AV) digital data. It was introduced in late 1998 and designated a standard for a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) (ISO/IEC JTC1/SC29/WG11) under the formal standard ISO/IEC 14496 - Coding of audio-visual objects. Uses of MPEG-4 include compression of AV data for web (streaming media) and CD distribution, voice (telephone, videophone) and broadcast television applications.
MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) VRML support for 3D rendering, object-oriented composite files (including audio, video and VRML objects), support for externally-specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Coding) was standardized as an adjunct to MPEG-2 (as Part 7) before MPEG-4 was issued.
MPEG-4 is still a developing standard and is divided into a number of parts. Companies promoting MPEG-4 compatibility do not always clearly state which "part" level compatibility they are referring to. The key parts to be aware of are MPEG-4 part 2 (including Advanced Simple Profile, used by codecs such as DivX, Xvid, Nero Digital and 3ivx and by Quicktime 6) and MPEG-4 part 10 (MPEG-4 AVC/H.264 or Advanced Video Coding, used by the x264 encoder, by Nero Digital AVC, by Quicktime 7, and by high-definition video media like Blu-ray Disc).
Most of the features included in MPEG-4 are left to individual developers to decide whether to implement them. This means that there are probably no complete implementations of the entire MPEG-4 set of standards. To deal with this, the standard includes the concept of "profiles" and "levels", allowing a specific set of capabilities to be defined in a manner appropriate for a subset of applications.
Initially, MPEG-4 was aimed primarily at low bit-rate video communications; however, its scope as a multimedia coding standard was later expanded. MPEG-4 is efficient across a variety of bit-rates ranging from a few kilobits per second to tens of megabits per second. MPEG-4 provides the following functionalities:
The MPEG compression methdology is considered asymmetric as the encoder is more complex than the decoder.The encoder needs to be algorithmic or adaptive whereas the decoder is 'dumb' and carries out fixed actions. This is considered advantageous in applications such as broadcasting where the number of expensive complex encoders is small but the number of simple inexpensive decoders is large. The MPEG's (ISO's) approach to standardization is novel, because it is not the encoder that is standardized, but the way a decoder interprets the bitstream. A decoder that can successfully interpret the bitstream is said to be compliant. The advantage of standardizing the decoder is that over time encoding algorithms can improve, yet compliant decoders continue to function with them.The MPEG standards give very little information regarding structure and operation of the encoder and implementers can supply encoders using proprietary algorithms.[9] This gives scope for competition between different encoder designs, which means better designs can evolve and users have greater choice, because encoders of different levels of cost and complexity can exist, yet a compliant decoder operates with all of them.
MPEG also standardizes the protocol and syntax under which it is possible to combine or multiplex audio data with video data to produce a digital equivalent of a television program. Many such programs can be multiplexed and MPEG defines the way such multiplexes can be created and transported. The definitions include the metadata used by decoders to demultiplex correctly.
The 'Moving Picture Experts Group' (MPEG) is a working group of experts that was formed by ISO and IEC to set standards for audio and video compression and transmission It was established in 1988 and its first meeting was in May 1988 in Ottawa, Canada.As of late 2005, MPEG has grown to include approximately 350 members per meeting from various industries, universities, and research institutions. MPEG's official designation is ISO/IEC JTC1/SC29 WG11 - Coding of moving pictures and audio (ISO/IEC Joint Technical Committee 1, Subcommittee 29, Working Group 11)
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Nokia's new Smartphone, the X6 with ComesWithMusic has stormed to stardom. The phone has an awesome 3.2inch nHD display with a built in accelerometer, the screen is fully touch capacitive which enables multi touch control and the massive 32GB internal memory delivers more than enough storage space. There is a handy digital camera bolted onto the back and multimedia centre is the icing on the cake. Your social network activities can be managed from the handset and a range of wireless connections
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In an atmosphere of ever-increasing digital social inter-connectivity, more and more people every day are turning to their mobile devices rather than their laptops or PCs for the way they get their information.
Iphone is introduces by Apple company. It is hot selling product all over the world since its launch. Iphone is not just a phone from which you receive call or make call or send sms. Iphone is more than a mobile phone, it's a mini super computer. Iphone has amazing features and huge variety of iphone apps are available. You can buy and download iphone apps according to your interest and need.
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Connectivity on international trips is no longer a major problem with an international SIM card. Long distance mobile calls while traveling used to be very expensive, and moreover, efficient coverage was another hurdle. But with the coming of international SIM cards targeted at travelers, all these things have changed. This article highlights two types of international SIMs – a universal SIM card, and a country specific SIM card:
Welcome... The Fuze is here and below are some of my initial feelings regarding the phone. Hopefully you guys can answer some question and provide feedback as well. Funny damn thing is this. They coud have inventoried them and then gave them to us but rather they, some of the ATT employees, were being lazy so I just had to find a store that would sell it to me. First off, where is the DAMN clock that is animated. Damn you ATT wtf would you get rid of this for. You are asking for mods when you d
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Hey all, I have an 8890 thats in need of repair (screen issue). I bought the phone last August, but I cant find the receipt. I bought it from an Internet store listed on , but I cant recall the name of it. I tried looking it up on Yahoo, but cant find the order. When I first called Nokia customer service, they didnt mention anything about a receipt, but I think the website says something about including it. Is the receipt necessary for warranty work? The phone has the purchase date in its memory
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