H.264 the new realm of audiovisual

Friends who have long been interested in movie information will surely notice that a recent movie resource with a "H.264" logo is starting to appear online. Movie files with this kind of identification are usually large in size, mostly above 4GB, and often appear with words such as "HDTV". What does this logo really mean?

What is H.264

Simply put, H.264 is a new type of video coding format, which is one of the newest and most technically available video coding formats defined by the current MPEG-4 standard. Bypassing those obscure technical terminology, word, H.264 's advantage is the higher data compression ratio, in the same image quality conditions, H.264 data compression ratio than the current DVD system used in the MPEG-2 2-3 times higher than the MPEG-4 1.5-twice times higher. In MPEG-2 need 6Mbps transmission rate matching, H.264 only need 1mbps-2mbps transmission rate, the technical superiority is obvious, this and the same time DivX quite similar to the wonderful. So H.264 has been widely used in HDTV, although as an up-and-comer, expensive hardware decoding playback equipment has led to H.264 in the home appliance market, but PC users have been able to experience its charm in advance.

What kind of platform is capable of H.264 decoding

H.264 encoded files are usually used in the same way as MPEG-4 files. avi format, some also use the suffix name such as. tp or. ts, and you need to install the correct decoder and playback software to play it properly. For PC users, H.264 encoded video files will undoubtedly mean more than the previous high level of audio-visual enjoyment, but also means a double test of software and hardware, such as the spread of the internet called "Deep Blue" H.264 encoded video is a typical "hardware killer", At present, most of the low-end computer platform in front of it is fragile. From a hardware point of view, to enjoy the stunning picture of H.264, the entry-level configuration should be the Intel Pentium 4 630/631 3OGHz or AMD Athlon64 3200+-level processor, the "Kourou" stream is naturally more desirable. Of course, but also with dual-channel memory strong bandwidth support, the video card is also the key, support H.264 hardware decoding of the graphics card can greatly reduce the crazy compression of the CPU of HDTV, nvidia 6/ 7 Series Graphics Cards (note that some models of the 6-series graphics cards do not support H.264 hardware decoding, details can be queried http://www.nvidia.com/page/purevideo_support.html) "PureVideo" Technology and AT1 X1000 Series graphics Card "Avivo" technology has such a "unique skills." In addition, other accessories also can not be belittled, such as a quiet and dynamic power, a good chassis, an expressive sound system, as well as a widescreen display, are to be considered. Finally, don't forget, overclocking is also a tool for the poor!

In addition to the hardware platform, software factors can not be ignored, the correct configuration may further reduce the H.264 hardware resources "blackmail", or help improve the quality of the picture. At present, in addition to WinDVD, PowerDVD, such as commercial software, the most popular when the KMPlayer and its derivative of the "ultimate decoding." The addition of decoders (also known as "filters") and the support of separators is also critical, and this has been a controversial topic. In short, given the H.264 encoded video files that make many experts scratching their heads, we usually use the Moonlight 3-month light H.264 decoder +gabest MP4 separator combination, playing TS encapsulated video effect is good. If you want to do DTS audio decoding, Gabest is a good choice, if your hardware configuration is high and graphics support hardware decoding, CyberLink H.264 decoder and its separator is very good "golden partner" While the new sharp COREAVC is known as the H.264 player in the software, its built-in COREAVC DirectShow Video Decoder Decoder also boasts the most efficient software decoder: There are halli separators, NVIDIA transport Demux separator, TCPMP decoder, etc. also have their own useful. If you have a bizarre problem, swapping a decoder or separator can be an unexpected bonus.

With the right software platform, it is also necessary to properly configure the software. For example, the commonly used subtitle plug-in software vobsub must be shut down, do not install too many decoders in the system to prevent conflicts, use KMPlayer to turn off other filters as much as possible, and so on. This setup trivial complex, for this "ultimate decoding" provides a centralized settings interface, you can easily make the corresponding settings, and "ultimate decoding" of the built-in decoder, separator and so have a corresponding set interface, even if the rookie can be used freely.

H.264 not far away from us

With the strong support of the soft and hardware "right-hand arm", H.264 is no longer unreachable: currently on P4 3.OGHZ+1GB DDR dual-channel memory +6600GT level platform, using the ultimate decoder 1.7.0116+kmplyaer player +powerdvd decoder The combination of +gabest separator, with hardware decoding, has been able to play a relatively smooth 1080p of the "King Kong" such a film.

The H.264 video, which represents the future direction of development, is undoubtedly a great temptation, but to see its face, there must be a price to pay. Think of that year MP3 old Pentium, VCD and let Pentium 2 senility, D1VX for Pentium 3 pressure on the last straw. Our endless pursuit of audiovisual enjoyment will always be pushed to the next peak by the new technological era. We do not have to timid in the H.264 of a moment, reach out your arms, come on, are you ready to hug her?