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N
ffmpeg-0.6.3
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${ noResults }
6 Commits (2e2b6d7ab37db662500f441a506bb20071e87b73)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Mirjana Vulin
|
8d2eb5fe58 |
mips: optimization for float aac decoder (sbr module)
Signed-off-by: Mirjana Vulin <mvulin@mips.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
12 years ago |
Diego Biurrun
|
d4f05ae3b6 |
sbrdsp: Use standard multiple inclusion guards.
|
13 years ago |
Christophe GISQUET
|
34454c761f |
SBR DSP x86: implement SSE sbr_sum_square_sse
The 32bits targets have been compiled with -mfpmath=sse for proper reference.
sbr_sum_square C /32bits: 82c (unrolled)/102c
C /64bits: 69c (unrolled)/82c
SSE/32bits: 42c
SSE/64bits: 31c
Use of SSE4.1 dpps to perform the final sum is slower.
Not unrolling to perform 8 operations in a loop yields 10 more cycles.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
13 years ago |
|
Christophe GISQUET
|
2e74a5abc2 |
SBR DSP: use intptr_t for the ixh parameter.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> |
13 years ago |
Mans Rullgard
|
be822d77b6 |
aacsbr: ARM NEON optimised sbrdsp functions
Overall speedup of HE-AAC decoding 2.3x on Cortex-A8, 1.2x on A9. Signed-off-by: Mans Rullgard <mans@mansr.com> |
13 years ago |
|
Mans Rullgard
|
aac46e088d |
aacsbr: move some simdable loops to function pointers
This prepares for assembly optimisations by moving the most time-consuming loops to functions called through pointers in a new context. Signed-off-by: Mans Rullgard <mans@mansr.com> |
13 years ago |