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Understanding Compression
One Day Course
COURSE CONTENT
Day One
Why compress?
What is a codec?
What is a codec architecture?
Architectures
- AVI
- Quicktime
- Windows Media
- Real
- Flash
- MPEG
Important Codec Issues
- Lossless v. lossy codecs
- Bit depth
Frames v. Fields
- Issues with fields
CBR v. VBR
Delivery keyframes
- Intraframe
- Predicted frame
- Bidirectional or Interpolated frame
Sequence order
- Display order
- Coded order
Audio Codecs
- Containers
- Specialised codecs
- Common delivery codecs
- Common transport / archiving codecs
Streaming v. Download
Compressing the right way – Common techniques to improve compression
Compressing for DVD
Compressing for Internet & Internet video services
Compressing for broadcast
Compressing for archive