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authorAndreas Rheinhardt <andreas.rheinhardt@gmail.com>2020-11-01 23:19:18 +0100
committerAndreas Rheinhardt <andreas.rheinhardt@gmail.com>2020-12-08 17:51:46 +0100
commit58fc810d42fde26ed6c1f2996122e98ab7005849 (patch)
treedde8b38c8528eef903cd46993cbddca4e69cca55 /libavcodec/vc1.c
parenta7dbeb77c3c30ac4904928978938b209ff6e1ab1 (diff)
downloadffmpeg-58fc810d42fde26ed6c1f2996122e98ab7005849.tar.gz
avcodec/atrac3plus: Run-length encode length tables to make them smaller
This is very beneficial for the scale factor tables where 4*64+4*15 bytes of length information can be replaced by eight codebooks of 12 bytes each; furthermore the number of codes as well as the maximum length of a code can be easily derived from said codebooks, making tables containing said information superfluous. This and combining the symbols into one big array also made an array of pointers to the tables redundant. For the wordlen and code table tables the benefits are not that big (given these tables don't contain that many elements), but all in all using codebooks is also advantageouos for them. Therefore it has been done. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
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