Comparison With Other Progressive Encodings
For more details on this topic, see Lossy data compression#Downsampling / compressed representation scalability.Bitrate peeling is theoretically possible, and is implemented in some other formats, notably JPEG 2000, JPEG progressive encoding, and Scalable Video Coding.
The reason that it is not available in Ogg Vorbis is that current encoders do not organize the code-stream to have progressive accuracy, thus peelers cannot tell which data is more or less important.
See also the Adam7 algorithm used in PNG interlacing.
Read more about this topic: Bitrate Peeling
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