[flac-dev] Exact FLAC subset constraints

lvqcl lvqcl.mail at gmail.com
Sun Jan 12 09:06:52 PST 2014


Барт Гопник wrote:

> Any progress?

http://git.xiph.org/?p=flac.git;a=commit;h=09229aa967251ce840e43d300d27a915495e75db
commit 2007-07-31, author: Josh Coalson, committer: Josh Coalson

"document blocksize strategy bit, RESIDUAL_CODING_METHOD_PARTITIONED_RICE2, new subset sample rates, subset clarification, variable blocksize clarification"



Before:
"The blocksize bits in the frame header must be 0001-0101 or 1000-1110, specifying a fixed-blocksize stream (the exception being the last block as described in the table) and a few allowable blocksizes. This also means that the STREAMINFO metadata block must specify equal mininum and maximum blocksizes. If the sample rate is <= 48000Hz, the blocksize must be <=4608, i.e. blocksize bits 0001-0101 or 1000-1100."



After:
"The blocksize bits in the frame header must be 0001-1110. The blocksize must be <=16384; if the sample rate is <= 48000Hz, the blocksize must be <=4608."


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