H.264/AVC baseline profile decoder complexity analysis

摘要: We study and analyze the computational complexity of a software-based H.264/AVC (advanced video codec) baseline profile decoder. Our analysis is based on determining number basic operations required by decoder to perform key decoding subfunctions. The frequency use each subfunctions empirically derived using bitstreams generated from two different encoders for variety content, resolutions bit rates. Using measured frequencies, estimates time various hardware platforms can be determined. A detailed example provided assist in deriving estimates. compare resulting numbers an optimized Pentium 3 platform. then those evaluate dependence major encoder characteristics, resolution rate. Finally, we H.264/AVC-compliant that compliant with H.263 standard, which currently dominant interactive applications. Both "C" only implementations were compared results indicate approximately 2.5 times more complex than