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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2011-08-24 13:58:37 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-10-03 01:49:36 +0200 |
| commit | a5dfeb612eec1223bb0adf9625010c81e8737edb (patch) | |
| tree | e3d5fd16603cb4ce68dd82ff2452c15308d11df1 /libavcodec/arm/asm.S | |
| parent | c3a774969a9de064115376919999288559d06f3f (diff) | |
| download | ffmpeg-a5dfeb612eec1223bb0adf9625010c81e8737edb.tar.gz | |
VP8: armv6 optimizations.
From 52.503s (~40fps) to 27.973sec (~80fps) decoding of 480p sintel
trailer, i.e. a ~2x speedup overall, on a Nexus S.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/arm/asm.S')
| -rw-r--r-- | libavcodec/arm/asm.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/arm/asm.S b/libavcodec/arm/asm.S index fc7ee60357..856d2e986f 100644 --- a/libavcodec/arm/asm.S +++ b/libavcodec/arm/asm.S @@ -97,6 +97,12 @@ T add \rn, \rn, \rm T ldr \rt, [\rn] .endm +.macro ldr_dpren rt, rn, rm:vararg +A ldr \rt, [\rn, -\rm] +T sub \rt, \rn, \rm +T ldr \rt, [\rt] +.endm + .macro ldr_post rt, rn, rm:vararg A ldr \rt, [\rn], \rm T ldr \rt, [\rn] @@ -133,6 +139,12 @@ T ldrh \rt, [\rn] T add \rn, \rn, \rm .endm +.macro ldrb_post rt, rn, rm +A ldrb \rt, [\rn], \rm +T ldrb \rt, [\rn] +T add \rn, \rn, \rm +.endm + .macro str_post rt, rn, rm:vararg A str \rt, [\rn], \rm T str \rt, [\rn] |