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>
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