FFmpeg

Commit Graph

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
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
Reimar Döffinger	87c7fb2b21	aacsbr: support hardcoding tables. For sbr_qmf_window_us there is even a question if it maybe should be fully hardcoded all the time. Since half of it is coded, it ends up in .data and not .bss. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	11 years ago
Derek Buitenhuis	b62d4c16c9	Revert "cbrt_tablegen: Include libm.h" This code runs on the host and should not use libm.h, which is meant for the target. This reverts commit `2768b71798`.	13 years ago
Derek Buitenhuis	2768b71798	cbrt_tablegen: Include libm.h Needed for cbrtf fallback on systems which lack it. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	13 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Diego Pettenò	350120d269	tablegen: implement and use WRITE_ARRAY macros Two macros (WRITE_ARRAY and WRITE_ARRAY_2D) take the prefix (modifiers) (not all tables are static, and they might not be constant either), the type, and the name of the array. It'll be copied with same name and type, and with the correct size of the currently-defined object. Originally committed as revision 23821 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Pettenò	ac014798ff	tableprint: use the type name as-is for the functions' names. This drops one parameter from the functions' macros, and require structures to be typedeffed, but ensures that it is possible to map 1-to-1 the type to the function name. Originally committed as revision 23820 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	8eaa6e0e04	Change/simplify the tableprint/tablegen API. Originally committed as revision 22761 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	c26bce1070	Allow hard-coding of the 32kB cubic-root table for AAC. Originally committed as revision 22527 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	a7c6e76638	Add support for hardcoding the motionpixels rgb to yuv table. Originally committed as revision 20627 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	eadaa00c6f	Add support for hardcoding the mpegaudiodec tables. Reduces .bss size by about 194 kB. Originally committed as revision 20400 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

2 Commits (7c1c453ce9f0fc71e5c806615d4390d1b9c172d0)