H.264 codec Note
• Elements of a video Sequence
o Frames
o Slices
o MBs (macroblocks)
• Frame Types
o I-, P-, B-frames
o GOP (group of picture), specifies the order in which intra- and inter-frames are arranged.
o NAL (Network Abstraction Layer)
v SPS (Sequence parameter set)
v PPS (Picture parameter set)
v IDR (Instantaneous Decoder Refresh), every IDR frame is an I-frame, but not vice versa,
• Coding Tools
o Entropy Coding
v CAVLC
v CABAC
o Integer Transform
v DCT
o Quantization
o Inter-Prediction
o Intra-Prediction
v Intra_4x4, Intra_8x8, Intra_16x16
o Deblocking filter
• Profiles and Levels
o Baseline Profile (66)
o Main Profile (77)
o Extended Profile (88)
o High Profile (100)
详细原文参考：Springer
