A deblocking filter is a video filter applied to decoded compressed video to improve visual quality and prediction performance by smoothing the sharp edges which can form between macroblocks when block coding techniques are used. Here is an artical and web page introduce the H264 in-loop filter.
The entropy coding is another very important part of video coding. The purpose of entorpy coding is to compress the syntax data, residual pixel data. The h264 standard specifies two types of entropy coding: Context-based Adaptive Binary Arithmetic Coding (CABAC) and Variable-Length Coding (VLC)
Inter prediction creates a prediction model from one or more previously encoded video frames. The model is formed by shifting samples in the reference frame(s) (motion compensated prediction). The AVC CODEC uses block-based motion compensation, the same principle adopted by every major coding standard since H.261. Important …
The purpose of intra prediction is to eliminate the space relationship of current picture. Before H264, there are almost no 'modern' intra prediction. Usually use DC prediction (MPEG2/MPEG4) and AC prediction (MPEG4) to act as intra prediction. Another purpose of intra prediction is that he prediction process does …
Each residual macroblock is transformed, quantized and coded. Previous standards such as MPEG-1, MPEG-2, MPEG-4 and H.263 made use of the 8x8 Discrete Cosine Transform (DCT) as the basic transform. The “baseline” profile of H.264 uses three transforms depending on the type of residual data that is …
H.264 or MPEG-4 Part 10, Advanced Video Coding (MPEG-4 AVC) is a block-oriented motion-compensation-based video compression standard. As of 2014 it is one of the most commonly used formats for the recording, compression, and distribution of video content. It supports resolutions up to 4096×2304, including …
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