3d48cbc56c
swresample: reuse COMMON_CORE asm where possible
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Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-18 16:08:34 +01:00
7c8bf09edd
swresample: change COMMON_CORE_INT16 asm from SSSE3 to SSE2
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pshuf+paddd is slightly faster than phaddd.
The real gain is in pre-ssse3 processors like AMD K8 and K10, which get
a big boost in performance compared to the mmxext version
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-18 15:00:50 +01:00
b8c55590d5
swr/resample: fix integer overflow, add missing cast
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The effects of this are limited to numeric errors in the output
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-04 04:05:59 +01:00
b6a7f66f93
resample: remove disabled debug code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-06 02:51:26 +01:00
8ea8833979
swr/resample: move templating parameters to template itself.
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It has various benefits such as allowing some refactoring, clarifying
the code in the inclusion part, and making the template understandable
in standalone.
This commit is based on the templating method used by Justin Ruggles for
libavresample.
2012-11-15 21:24:49 +01:00
d53f447130
swr: move if() block into the only branch where it can be true.
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This should make the code a tiny tiny bit faster.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-15 12:33:40 +01:00
17da2d9eee
swr: reorder/redesign operations to avoid integer overflow.
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This fixes a out of array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-15 12:33:40 +01:00
4ccf6e3971
swr: MMX2 & SSSE3 int16 resample core
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about 4 times faster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-28 00:36:27 +02:00
0c142e4cda
swr: introduce filter_alloc in preparation of SIMD resample optimisations
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-19 03:09:24 +02:00
80e857c967
swr/resample: optimize C code for the most common case
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15% speedup
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-19 03:09:24 +02:00
6e6dd9995b
resample_template: use av_assert
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-06 20:08:57 +02:00
7f1ae79d38
swr: support float & int32 in the resampler
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-10 13:18:49 +02:00
James Almer
Michael Niedermayer
Clément Bœsch