[M4IF Technotes] Current Part 10 Details

[Ben Waggoner]

Gary,
    Excellent, thanks.  It looks pretty much the same as what was presented
at WEMP, with the addition of Profile X.
    Do you have Level breakdowns as well?
    Is there a good on-line reference for all this.
Ben Waggoner <http://www.benwaggoner.com>
Compressed Video Consulting, Training, and Encoding
My Book:            http://www.benwaggoner.com/books.htm
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Compression Books:  http://www.benwaggoner.com/bookshelf.htm
on 9/22/02 22:39, Gary Sullivan at garysull   microsoft.com wrote:
> AVC / H.264 Profile Summary:
> 
> Three profiles now: Baseline, Main, and X
> 
> Baseline Profile
> * I and P picture types (not B)
> * In-loop deblocking filter
> * Interlace (level-dependent, levels 2.1 and above)
> * 1/4-sample motion compensation
> * Tree-structured motion segmentation down to 4x4 block size
> * VLC-based entropy coding
> * Some enhanced error resilience features
> - Flexible macroblock ordering/arbitrary slice ordering
> - Redundant slices
> 
> Main Profile
> * All Baseline features except enhanced error resilience features
> * B pictures
> * Adaptive weighting for B and P picture prediction
> * CABAC
> * Adaptive block-size transforms
> * MB-level frame/field switching
> 
> Profile X
> * All Baseline features
> * B pictures
> * Adaptive weighting for B and P picture prediction
> * More error resilience: Data partitioning
> * SP/SI switching pictures