Tag: Branch: Tree: 9785b1e21b

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Commit Graph

3 Commits (9785b1e21be1e3e3c87b290d5f5edc9b0cc6532f)

Author	SHA1	Message	Date
Ganesh Ajjanagadde	cb93df0dcb	avcodec/aacsbr_tablegen: always initialize tables at runtime ... This gets rid of virtually useless hardcoded tables hackery. The reason it is useless is that a 320 element lut is anyway placed regardless of --enable-hardcoded-tables, from which all necessary tables are trivially derived at runtime at very low cost: sample benchmark (x86-64, Haswell, GNU/Linux, single run is really what is relevant here since looping drastically changes the bench). Fluctuations are on the order of 10% for the single run test: 39400 decicycles in aacsbr_tableinit, 1 runs, 0 skips 25325 decicycles in aacsbr_tableinit, 2 runs, 0 skips 18475 decicycles in aacsbr_tableinit, 4 runs, 0 skips 15008 decicycles in aacsbr_tableinit, 8 runs, 0 skips 13016 decicycles in aacsbr_tableinit, 16 runs, 0 skips 12005 decicycles in aacsbr_tableinit, 32 runs, 0 skips 11546 decicycles in aacsbr_tableinit, 64 runs, 0 skips 11506 decicycles in aacsbr_tableinit, 128 runs, 0 skips 11500 decicycles in aacsbr_tableinit, 256 runs, 0 skips 11183 decicycles in aacsbr_tableinit, 509 runs, 3 skips Tested with FATE with/without --enable-hardcoded-tables. Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>	9 years ago
Hendrik Leppkes	3c4e49187f	libavcodec/aacsbr_tablegen: fix tablegen on windows ... Including these headers is not needed and breaks building on Windows as it tries to activate the full compat tools, which are not needed for host tools.	9 years ago
Jovan Zelincevic	b0414da90d	avcodec: Table creation for AAC_fixed_decoder (SBR-module) ... Create tables for fixed point code. Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	10 years ago