2. Encoder Control Intra- Prediction Inter- Prediction Motion Estimation De-blocking filter Composition P A C K A G I N G Ref Flag NAL-unit Type 0100111… Bitstream 1 Inverse Quantization/ Invers Transform MB Input Video Control Parameter Sets Supplemental Enhancement Information Header 000011… Non-VCl NAL unit#0 Header 0100111… VCl NAL unit#0 Motion Vector Quantized Transform Coeffs Transform/ Quantization Entropy Coding T-1 T-2 T-n + + - NAL-unit Header VCL NAL Partition H.264: Encoder-NAL