Commit Graph

21 Commits

Author SHA1 Message Date
Hendrik Leppkes
e23c3a13e3 Merge commit '90b1b9350c0a97c4065ae9054b83e57f48a0de1f'
* commit '90b1b9350c0a97c4065ae9054b83e57f48a0de1f':
  arm: add ff_int32_to_float_fmul_array8_neon

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2016-01-02 11:21:36 +01:00
Hendrik Leppkes
e754c8e8ca Merge commit 'e2710e790c09e49e86baa58c6063af0097cc8cb0'
* commit 'e2710e790c09e49e86baa58c6063af0097cc8cb0':
  arm: add a cpu flag for the VFPv2 vector mode

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2016-01-02 11:01:29 +01:00
Janne Grunau
90b1b9350c arm: add ff_int32_to_float_fmul_array8_neon
Quite a bit faster than int32_to_float_fmul_array8_c calling
ff_int32_to_float_fmul_scalar_neon through FmtConvertContext.
Number of cycles per int32_to_float_fmul_array8 call while decoding
padded.dts on exynos5422:

               before  after   change
cortex-a7:     1270     951    -25%
cortex-a15:     434     285    -34%

checkasm --bench cycle counts:     cortex-a15   cortex-a7
int32_to_float_fmul_array8_c:      1730.4       4384.5
int32_to_float_fmul_array8_neon_c:  571.5       1694.3
int32_to_float_fmul_array8_neon:    374.0       1448.8

Interesting are the differences between
int32_to_float_fmul_array8_neon_c and int32_to_float_fmul_array8_neon.
The former is current behaviour of calling
ff_int32_to_float_fmul_scalar_neon repeatedly from the c function,
The raw numbers differ since checkasm uses different lengths than the
dca decoder.
2015-12-14 16:45:02 +01:00
Janne Grunau
e2710e790c arm: add a cpu flag for the VFPv2 vector mode
The vector mode was deprecated in ARMv7-A/VFPv3 and various cpu
implementations do not support it in hardware. Vector mode code will
depending the OS either be emulated in software or result in an illegal
instruction on cpus which does not support it. This was not really
problem in practice since NEON implementations of the same functions are
preferred. It will however become a problem for checkasm which tests
every cpu flag separately.

Since this is a cpu feature newer cpu do not support anymore the
behaviour of this flag differs from the other flags. It can be only
activated by runtime cpu feature selection.
2015-12-14 16:42:35 +01:00
Michael Niedermayer
5c17377e28 Merge commit 'd74a8cb7e42f703be5796eeb485f06af710ae8ca'
* commit 'd74a8cb7e42f703be5796eeb485f06af710ae8ca':
  fmtconvert: drop unused functions

Conflicts:
	libavcodec/arm/fmtconvert_vfp_armv6.S
	libavcodec/x86/fmtconvert.asm
	libavcodec/x86/fmtconvert_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-28 23:58:29 +01:00
Anton Khirnov
d74a8cb7e4 fmtconvert: drop unused functions 2015-02-28 21:51:24 +01:00
Michael Niedermayer
e1c3e6277f Merge commit 'f0389eb777b1ab4291329d4f709098cdfa7384dc'
* commit 'f0389eb777b1ab4291329d4f709098cdfa7384dc':
  arm: fmtconvert: Split armv6 fmtconvert code off from vfp code

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 16:10:39 +02:00
Diego Biurrun
f0389eb777 arm: fmtconvert: Split armv6 fmtconvert code off from vfp code 2013-08-29 11:24:14 +02:00
Michael Niedermayer
3cab228005 Merge commit 'd6e4f5fef0d811e180fd7541941e07dca9e11dc0'
* commit 'd6e4f5fef0d811e180fd7541941e07dca9e11dc0':
  arm: Add VFP-accelerated version of int32_to_float_fmul_array8

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-22 11:55:40 +02:00
Michael Niedermayer
877bbe05ce Merge commit 'ce9ed10ac27b9cf32a6257e083ea2f052692d971'
* commit 'ce9ed10ac27b9cf32a6257e083ea2f052692d971':
  arm: Add VFP-accelerated version of int32_to_float_fmul_scalar

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-22 11:42:19 +02:00
Ben Avison
d6e4f5fef0 arm: Add VFP-accelerated version of int32_to_float_fmul_array8
Before           After
               Mean    StdDev   Mean    StdDev  Change
This function    366.2  18.3      277.8  13.7   +31.9%
Overall        18420.5 489.1    17049.5 408.2    +8.0%

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-22 10:15:36 +03:00
Ben Avison
ce9ed10ac2 arm: Add VFP-accelerated version of int32_to_float_fmul_scalar
Before           After
               Mean    StdDev   Mean    StdDev  Change
This function   1175.0   4.4      366.2  18.3   +220.8%
Overall        19285.5 292.0    18420.5 489.1     +4.7%

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-22 10:15:30 +03:00
Christophe Gisquet
b6293e2798 fmtconvert: Explicitly use int32_t instead of int
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-17 11:02:47 +03:00
Christophe Gisquet
f49564c607 fmtconvert: int32_t input to int32_to_float_fmul_scalar
It was previously declared as int.
Does not change fate results for x86.

Conflicts:

	libavcodec/ppc/fmtconvert_altivec.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-18 18:01:16 +02:00
Michael Niedermayer
6c38884876 Merge commit '620289a20e022b9c16c10d546ef86cc0bb77cc84'
* commit '620289a20e022b9c16c10d546ef86cc0bb77cc84':
  sh4: Fix silly type vs. variable name search and replace typo
  configure: Group all hwaccels together in a separate variable
  Add av_cold attributes to arch-specific init functions

Conflicts:
	configure
	libavcodec/arm/mpegvideo_armv5te.c
	libavcodec/x86/mlpdsp.c
	libavcodec/x86/motion_est.c
	libavcodec/x86/mpegvideoenc.c
	libavcodec/x86/videodsp_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-06 13:27:24 +01:00
Diego Biurrun
c9f933b5b6 Add av_cold attributes to arch-specific init functions 2013-02-05 17:01:05 +01:00
Michael Niedermayer
92ef4be4ab Merge remote-tracking branch 'qatar/master'
* qatar/master:
  ARM: allow runtime masking of CPU features
  dsputil: remove unused functions
  mov: Treat keyframe indexes as 1-origin if starting at non-zero.
  mov: Take stps entries into consideration also about key_off.
  Remove lowres video decoding

Conflicts:
	ffmpeg.c
	ffplay.c
	libavcodec/arm/vp8dsp_init_arm.c
	libavcodec/libopenjpegdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegvideo.c
	libavcodec/utils.c
	libavformat/mov.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-22 22:26:42 +02:00
Mans Rullgard
d526c5338d ARM: allow runtime masking of CPU features
This allows masking CPU features with the -cpuflags avconv option
which is useful for testing different optimisations without rebuilding.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-22 12:30:45 +01:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
Justin Ruggles
fe2ff6d247 Separate format conversion DSP functions from DSPContext.
This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit c73d99e672)
2011-02-04 03:08:09 +01:00
Justin Ruggles
c73d99e672 Separate format conversion DSP functions from DSPContext.
This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-02-02 02:44:53 +00:00