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g722: Add ARM NEON implementation for g722_apply_qmf()

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Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Peter Meerwald 2015-02-15 12:21:25 +01:00 committed by Martin Storsjö
parent 73ae0a9d12
commit 702458538d
5 changed files with 112 additions and 0 deletions
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4
libavcodec/arm/Makefile
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@ -35,6 +35,8 @@ OBJS-$(CONFIG_APE_DECODER) += arm/apedsp_init_arm.o
OBJS-$(CONFIG_DCA_DECODER) += arm/dcadsp_init_arm.o
OBJS-$(CONFIG_FLAC_DECODER) += arm/flacdsp_init_arm.o \
arm/flacdsp_arm.o
OBJS-$(CONFIG_ADPCM_G722_DECODER) += arm/g722dsp_init_arm.o
OBJS-$(CONFIG_ADPCM_G722_ENCODER) += arm/g722dsp_init_arm.o
OBJS-$(CONFIG_MLP_DECODER) += arm/mlpdsp_init_arm.o
OBJS-$(CONFIG_VC1_DECODER) += arm/vc1dsp_init_arm.o
OBJS-$(CONFIG_VORBIS_DECODER) += arm/vorbisdsp_init_arm.o
@ -131,6 +133,8 @@ NEON-OBJS-$(CONFIG_AAC_DECODER) += arm/aacpsdsp_neon.o \
NEON-OBJS-$(CONFIG_APE_DECODER) += arm/apedsp_neon.o
NEON-OBJS-$(CONFIG_DCA_DECODER) += arm/dcadsp_neon.o \
arm/synth_filter_neon.o
NEON-OBJS-$(CONFIG_ADPCM_G722_DECODER) += arm/g722dsp_neon.o
NEON-OBJS-$(CONFIG_ADPCM_G722_ENCODER) += arm/g722dsp_neon.o
NEON-OBJS-$(CONFIG_RV30_DECODER) += arm/rv34dsp_neon.o
NEON-OBJS-$(CONFIG_RV40_DECODER) += arm/rv34dsp_neon.o \
arm/rv40dsp_neon.o

35
libavcodec/arm/g722dsp_init_arm.c Normal file
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@ -0,0 +1,35 @@
/*
* Copyright (c) 2015 Peter Meerwald <pmeerw@pmeerw.net>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/arm/cpu.h"
#include "libavcodec/g722dsp.h"
extern void ff_g722_apply_qmf_neon(const int16_t *prev_samples, int xout[2]);
av_cold void ff_g722dsp_init_arm(G722DSPContext *dsp)
{
int cpu_flags = av_get_cpu_flags();
if (have_neon(cpu_flags))
dsp->apply_qmf = ff_g722_apply_qmf_neon;
}

69
libavcodec/arm/g722dsp_neon.S Normal file
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@ -0,0 +1,69 @@
/*
* ARM NEON optimised DSP functions for G722 coding
* Copyright (c) 2015 Peter Meerwald <pmeerw@pmeerw.net>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/arm/asm.S"
function ff_g722_apply_qmf_neon, export=1, align=4
movrel r3, qmf_coeffs
vld1.s16 {d2,d3,d4}, [r0]! /* load prev_samples */
vld1.s16 {d16,d17,d18}, [r3,:64]! /* load qmf_coeffs */
vmull.s16 q0, d2, d16
vmlal.s16 q0, d3, d17
vmlal.s16 q0, d4, d18
vld1.s16 {d5,d6,d7}, [r0]! /* load prev_samples */
vld1.s16 {d19,d20,d21}, [r3,:64]! /* load qmf_coeffs */
vmlal.s16 q0, d5, d19
vmlal.s16 q0, d6, d20
vmlal.s16 q0, d7, d21
vadd.s32 d0, d1, d0
vrev64.32 d0, d0
vst1.s32 {d0}, [r1]
bx lr
endfunc
const qmf_coeffs, align=4
.hword 3
.hword -11
.hword -11
.hword 53
.hword 12
.hword -156
.hword 32
.hword 362
.hword -210
.hword -805
.hword 951
.hword 3876
.hword 3876
.hword 951
.hword -805
.hword -210
.hword 362
.hword 32
.hword -156
.hword 12
.hword 53
.hword -11
.hword -11
.hword 3
endconst

3
libavcodec/g722dsp.c
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@ -68,4 +68,7 @@ static void g722_apply_qmf(const int16_t *prev_samples, int xout[2])
av_cold void ff_g722dsp_init(G722DSPContext *c)
{
c->apply_qmf = g722_apply_qmf;
if (ARCH_ARM)
ff_g722dsp_init_arm(c);
}

1
libavcodec/g722dsp.h
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@ -28,5 +28,6 @@ typedef struct G722DSPContext {
} G722DSPContext;
void ff_g722dsp_init(G722DSPContext *c);
void ff_g722dsp_init_arm(G722DSPContext *c);
#endif /* AVCODEC_G722DSP_H */