This document discusses power analysis of the H.264/AVC video codec for mobile platforms. It provides background on video codecs and their encoder and decoder architectures. It then focuses on analyzing the power dissipation of the H.264 encoder, discussing its transform, quantization, and profiling. Experimental results show FPGAs are not well-suited for low-power optimizations. It concludes that while H.264 is power-intensive, an augmented cell phone architecture using coprocessors may balance power requirements with improved user experience.