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32 Commits

Author SHA1 Message Date
Henrik Gramner f0b7882ceb x86inc: Drop SECTION_TEXT macro 
The .text section is already 16-byte aligned by default on all supported
platforms so `SECTION_TEXT` isn't any different from `SECTION .text`.
 2015-08-04 20:13:09 +02:00
Thilo Borgmann d814a839ac Reinstate proper FFmpeg license for all files. 2013-08-30 15:47:38 +00:00
Diego Biurrun 4b60fac419 x86: PALIGNR: port to cpuflags 2012-11-09 21:31:31 +01:00
Diego Biurrun 352e18b766 x86: avresample: Add missing colons to assembly labels 
YASM accepts labels without colons, but NASM issues warnings.
 2012-11-06 12:07:35 +01:00
Diego Biurrun 04581c8c77 x86: yasm: Use complete source path for macro helper %includes 
This is more consistent with the way we handle C #includes and
it simplifies the build system.
 2012-10-31 00:37:42 +01:00
Diego Biurrun 6860b4081d x86: include x86inc.asm in x86util.asm 
This is necessary to allow refactoring some x86util macros with cpuflags.
 2012-10-31 00:37:42 +01:00
Justin Ruggles 10e645e9cb lavr: handle clipping in the float to s32 conversion 
We cannot clip to INT_MAX because that value cannot be exactly
represented by a float value and ends up overflowing during conversion
anyway. We need to use a slightly smaller float value, which ends up
with slightly inaccurate results for samples which clip or nearly clip,
but it is close enough. Using doubles as intermediates in the conversion
would be more accurate, but it takes about twice as much time.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2012-10-13 12:34:34 +02:00
Diego Biurrun 17337f54c0 x86: Split inline and external assembly #ifdefs 2012-08-31 01:53:25 +02:00
Justin Ruggles 06e751a40f lavr: x86: optimized 6-channel flt to fltp conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles e07c9705c8 lavr: x86: optimized 2-channel flt to fltp conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles 5245c9f3ad lavr: x86: optimized 6-channel flt to s16p conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles 31d0d7181d lavr: x86: optimized 2-channel flt to s16p conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles 6092dafb5a lavr: x86: optimized 6-channel s16 to fltp conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles 91851a7b37 lavr: x86: optimized 2-channel s16 to fltp conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles 205ace8843 lavr: x86: optimized 6-channel s16 to s16p conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles 8eeffa8ada lavr: x86: optimized 2-channel s16 to s16p conversion 2012-08-23 20:10:57 -04:00
Justin Ruggles b66e20d2aa lavr: x86: optimized 2-channel fltp to flt conversion 2012-08-23 20:10:56 -04:00
Justin Ruggles d5b4e50c47 lavr: x86: optimized 6-channel fltp to s16 conversion 2012-08-23 20:10:56 -04:00
Justin Ruggles a58a013980 lavr: x86: optimized 2-channel fltp to s16 conversion 2012-08-23 20:10:56 -04:00
Justin Ruggles 90cc27f813 lavr: x86: optimized 6-channel s16p to flt conversion 2012-08-23 20:10:56 -04:00
Justin Ruggles 46f929adad lavr: x86: optimized 2-channel s16p to flt conversion 2012-08-23 20:10:56 -04:00
Justin Ruggles 13df7d2d40 lavr: x86: optimized 6-channel s16p to s16 conversion 2012-08-23 20:10:56 -04:00
Justin Ruggles c0e12535aa lavr: x86: optimized 2-channel s16p to s16 conversion 2012-08-23 20:10:56 -04:00
Ronald S. Bultje 30b45d9c38 x86inc: automatically insert vzeroupper for YMM functions. 2012-07-26 13:43:16 -07:00
Justin Ruggles 4e4dd71730 lavr: Add x86-optimized function for flt to s32 conversion 2012-06-18 16:16:59 -04:00
Justin Ruggles 6c63cbfe7a lavr: Add x86-optimized function for flt to s16 conversion 2012-06-18 16:16:59 -04:00
Justin Ruggles 97ce1ba867 lavr: Add x86-optimized functions for s32 to flt conversion 2012-06-18 16:16:59 -04:00
Justin Ruggles 5904f25b9f lavr: Add x86-optimized functions for s32 to s16 conversion 2012-06-18 16:16:59 -04:00
Justin Ruggles d721f67d0a lavr: Add x86-optimized functions for s16 to flt conversion 2012-06-18 16:16:59 -04:00
Justin Ruggles 1168e29df1 lavr: Add x86-optimized function for s16 to s32 conversion 2012-06-18 16:16:59 -04:00
Justin Ruggles 5cc6d5244d lavr: replace the SSE version of ff_conv_fltp_to_flt_6ch() with SSE4 and AVX 
The current SSE version is slower than the MMX version on Athlon64 and Sandy
Bridge, but the SSE4 and AVX versions are faster on Sandy Bridge.
 2012-05-09 16:17:59 -04:00
Justin Ruggles c8af852b97 Add libavresample 
This is a new library for audio sample format, channel layout, and sample rate
conversion.
 2012-04-24 21:28:27 -04:00