Realization Of H.264 Vedio Decoder In SystemC

The H.264 standard, which is also called MPEG-4 AVC, is developed by the Joint Video Team of ITU-T Video Coding Expert Group (VCEG) and ISO/IEC Moving Picture Expert Group(MPEG). It has been taken as MPEG-4 Part10, "the high-level video encoder". Under the same reconstruction picture quality, H.264 saves about 50% code rate compared to H.263. Because of its higher compression ratio, better IP and the wireless network channel compatibility, it obtains more and more widespread applications in numeral video communication and the storage domain. Need to pay attention at the same time, H. 264 achieves the better quality depend on the complicate calculation. Estimate approximately, Encoder complicated degree is equal to H. 263's 3 times, decoder complicated degree is equal to H. 263's 2 times. Apply the advanced SoC chip to realize new video compression standard is to be the general trend.First, we have researched the H.264 standard for video coding and decoding in our work. We modify the algorithm and architecture and rewrited into classes. With a view of simultaneity in hardware level, we apply the decode in parallel architecture.Second, take advantage of the transaction level character, C decoder program is transformed into SystemC program. The facters needed to be noticed include signal transferring method, data transferring method and data storing method. The rewrited program should be validated continually.Finally, verify the SystemC decoder not only in Subjectivity but also in objectivity.