With multi-core low-power technology and various IP modules, the VF1000 can not only meet the demand for low-power video decoding chips for digital mobile TV, but also for ultra-low requirements including GPS, IPTVSTB, PMP and even watch TV. Various applications of power decoding technology. "The demand for mobile TV and wearable video products is very objective. Source See is the first low-power, low-cost H.264 decoding solution provider for VGA (DVD) quality mobile TV demonstrations." Icebreaking ceremony at VF1000 On, the company's CEO Yuan Kaizhi said. He pointed out that mobile TV video processing is a high-energy application that challenges battery-powered portable electronic devices. The VF1000 is a video processing chip featuring ultra-low power consumption. "It provides real-time decoding of VGA-quality AVC/H.264 video at very low power consumption. This will help achieve a small form factor wearable video terminal - so soon we can enjoy it on the watch Watch the entertainment-quality video show," Yuan Kaizhi said. It is said that the chip consumes only about 20mW in H.264 decoding in VGA format, while TI's similar products require up to 1W of power.
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In order to reduce power consumption, multi-core SoC architecture has come in handy. The VF1000 includes three CPU cores: system processor/audio DSP, video stream processor, and video control processor. The system processor is used for system control, peripheral device and audio processing. It has 8KB set-associative instruction cache, 8KB two-way set connected data cache and Dual-MAC with DSP instruction extension. The video stream processor implements hardware adaptive variable length coding (CAVLC) and adaptive binary arithmetic coding (CABAC). The three CPU clocks can reach a maximum frequency of 160MHz.
Mobile TV solution
Yuan Kaizhi said that the advantage of multi-core architecture is that it can enable different application processors to operate in parallel and divide the work reasonably in video, audio and image processing to achieve the best processing mode. It integrates one or more system processors for system control and middleware applications such as audio and video synchronization, error handling, media control, streaming media, digital rights management. "Multi-core SoC architecture has the advantages of software scalability and hardware scalability. In addition, because software and hardware can be called flexibly, it can support different standards. Before the mobile TV standard has been determined, it is quite beneficial to protect enterprise investment. of."
It is worth noting that the designers selected the ARC600 digital audio platform provided by configurable core vendor ARC to develop the VF1000. Yuan Kaizhi explained that this is because the ARC600 core has the lowest power consumption per MHz in the existing CPU on the market, and it also has certain advantages in size. As for why not use the ARM core familiar to Chinese engineers, he said that the ARM core is very easy to use, in addition to more software support, there is no engineering difficulties. "But we will encounter many challenges in system integration," he said. "All we need is a faster, smaller, and lower cost CPU."
Backed by huge local markets, China's independent standards are receiving more and more attention. Source see technology has also caught up with this trend, VF1000 has been able to achieve QVGA quality AVS video decoding (30 frames / sec), it also supports DMB-TH standard. Yuan Kaizhi is very optimistic about the prospects of local standards. He believes that although MPEG-4/2 is still the mainstream of mobile TV, IPTV and PMP markets, compared with H.264 and AVS, the excessive cost and low image quality are undoubtedly hard to compete with. hurt. “As a global standard, H.264 will surpass MPEG-4/2 in full around 2009. The departure of China's domestic standards is only a matter of time, it will surpass MPEG-4/2 by 2010. Yuan Kaizhi said.
From the technical parameters alone, the VF1000 seems to have exceeded the demand for video decoders for mobile TV. In fact, because of the corresponding IP provided for various applications, a platform concept has been formed, and the VF1000 has been able to apply many terminal devices related to video decoding. Other examples of VF1000 applications include embedding them in special glasses for an immersive TV show visual experience; they can be used in SDDongle, a portable product similar in shape to a flash drive, which can be plugged into a USB port to help Notebooks and other mobile devices that do not have a decoder chip receive digital TV signals; in addition, with various interfaces, the VF1000 also implements IPTV-On-The-Go and turns the electronic photo frame into a digital entertainment screen. The company is also said to be in contact with the fashion industry to discuss the possibility of cooperating to launch watch TV. However, Yuan Kaizhi still stressed that mobile TV and mobile TV are still the focus of their current market development.
Although the launch of the VF1000 is not very long, Yuan Kaizhi said that there are 7 to 8 customers in the negotiation, and there are currently three locked in from Japan, China and Taiwan. In addition, the company is also working with Weiwang Technology Suzhou Co., Ltd. to develop a system-level solution using the latter's receiver chip, which will be available to customers in October. It is reported that following the VF1000 decoder, the codecs of the VF1500 and VF2000 models are also under development.
The main control unit of the equipment is PLC and the HMI (Human Machine Interface) is 7" LCD colorful touch screen. The equipment has varieties of operating modes, and can automatically record and save working status.The complete set of equipment is easy to operate, reliable in working, complete in protection and high in automation.
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