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| Many standards contain different configurations of capabilities
C often based in "profiles"& "levels" |
- A profile is usually a set of algorithmic features
- A level is usually a degree of capability (e.g. resolution
or speed of decoding)
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H.264/AVC has three profiles |
- Baseline (lower capability plus error resilience, e.g.,
videoconferencing, mobile video)
- Main (high compression quality, e.g., broadcast)
- Extended (added features for efficient streaming)
- Profiles & Levels Concepts Profiles & Levels
Concepts
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Video coding layer is based on hybrid
video coding and similar in spirit to other standards but
with important differences
Some new key aspects are: |
- Enhanced motion compensation
- Small blocks for transform coding
- Improved de-blocking filter
- Enhanced entropy coding
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