Allegro DVT introduces the according with test dataflow facing new developing video standard
Leading the intersection of video and person who accord with the intersection of test and the intersection of dataflow and the intersection of company and Allegro DVT release latest H.264 SVC their can expand advanced Level 4.2 the intersection of test and suit of according with etc. in the near future One, and the intersection of H.264 MVC and stereo advanced Level 4.1 the intersection of test and suits of piece of according with etc., enable these two kinds of new developing ones, face the clear content 1080P60 and the whole HD 3D of overall height Have complete test systems to convey the standard to can expand the video. For this reason, specialized electronic information technical market Beijing China of research institution revitalized the Wan ‘s to visit this Silicon Valley area of France -based leading enterprise on a special trip.
As the content of the digital audio frequency and video is propagated extensively through medias such as digital TV, Internet, moving the communication network,etc., fast popularization of new cellular telephone, PMP, roof box, dull and stereotyped computer, blue mere player and dull and stereotyped computer, and content forms such as various high and clear and 3D,etc. and standard are emerging constantly, in order to guarantee the content can be broadcast on different platforms and networks accurately, figure depend on audio frequency person who accord with importance of test promote day by day, thus bring, serve and test demand of tool to various the intersection of standard and test of person who accord with too.
“With such as various video standards such as H.264 wide application, manufacturer and operator to the intersection of standard and person who accord with demand of test get fast development too. ” Allegro DVT unites founder and CEO Pierre Marty and tells China to revitalize Liu ChaoHui, chief analyst of Nation Wan. “This is because realize the new video standards all need a large amount of compressed technology, though every chip and system developer can make sure basically similar while developing the decoder, but each raise and compress efficiency while designing the encoder by different frameworks and algorithms, so need to carry on the according with test of standard to encoder and decoder products. ”
Allegro DVT that the general headquarters lay under the foot of the hill of Alps was established in November of 2003, through being absorbed in researching and developing various and looking at the number-crunching technology of audio frequency and looking for actively relevantly and orienting application specially, have become the global and leading digital video according with test service and tested a dataflow supplier. Company this have 25 staff at present, 22 people for engineer, it unites the intersection of founder and Marty to be the intersection of ST and microelectronic the intersection of roof box and the intersection of products and the intersection of framework and director of banking department once among them.
Allegro DVT develop already up till now including various the intersection of test and dataflow of according with etc., chip design use intellectual property right IP With broadcasting three product lines of product. His more than 70 customers are global and first-class manufacturer, including chip manufacturers such as Intel, NXP, TI, ST and Broadcom,etc., operator, Siemens, Fujitsu,etc. apparatus manufacturer such as NTT. Including sea of China think semiconductor, the intersection of exhibition and news and the intersection of country and the intersection of core,etc. and Asian-Pacific manufacturer account for their customer 40% of total number.
The new one depends on the standard of the audio frequency has brought the enormous chance to development of Allegro DVT, especially because H.264 and MPEG4 looks has higher complexity than in MPEG-2, so from initial encoder, chip of the decoder and beginning which the system designs, until dispose, take to go on essential test by the first every step on a large scale in roof box and digital TV, can prevent extremely expensive, time-consuming and strenuous redesign and invalid quantity to produce like this.
For this reason, Allegro DVT has offered a set of piece of many kinds of test, a set of piece is collected / employed the aspect to make up to a seed in each kind of test. The products that Allegro DVT offers include the following verification tools: MPEG-4 and H.264 be lasted dataflowed foundation,audio frequency /last system grades of dataflow and advanced test dataflows prospective. These products are suitable for different stages of new product development, when using together, they will form a set of intact system testing and a set of piece.
“It is tested that the dataflow is the test schemes of a set of automatic jobs such as a set of piece of our H.264 basic dataflow includes a series of dataflow, they each go on fast analysis simple to one particular the intersection of video and function to the question might appeared. ” Mr. Marty says. “Every step tests that will be laid and will endorse, will produce and expect to decode the picture to compare with our reference video decoder software, thus discover the problems. We offer and dispel wrong tool and intact reference file at the same time, help the designer to find and solve the problem. ”
And test the dataflow is more complicated to system grade of roof box and digital TV, because the digital television standard of the areas of various countries is not the same, demand to be very strict to the test of the system products at the same time. The digital television standard DVB-T that used for example to Europe tests, the systematic dataflow that Allegro DVT offers, according to ETSI TS 101 154 V1.8.1 2007-07 Standard, offer the static picture to analyze, the audio frequency / video moves ahead simultaneously, dynamic change that the picture is analyzed, it edit video changes, pictures dynamic on decoder it is vertical-horizontal than, form describing devices dynamic, pursuing eight dataflow test simultaneously with DVB subtitle,etc. after moving ahead simultaneously to characters curtain.
“To various future new developing standards, we introduced the corresponding test dataflow too, can help the designer to develop the products not out of date. ” Mr. Marty concludes. “We developed to the standard of H.264 and MPEG4 to put out the product of miscarrying of more high-level data recently, new development such as clear, 3D and adaptive bandwidth by meeting overall height in an all-round way, the latest products include supporting high clear SVC which moves video broadcasting to expand Level 4.2 according with test dataflow, and support the stereo Level 4.1 MVC according with test dataflow of 3DTV. ”