Described tools and techniques relate to signaling for DC coefficients at small quantization step sizes. The techniques and tools can be used in combination or independently. For example, a tool such as a video encoder or decoder processes a VLC that indicates a DC differential for a DC coefficient,...http://www.google.de/patents/US7738554?utm_source=gb-gplus-sharePatent US7738554 - DC coefficient signaling at small quantization step sizes
