mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-18 03:19:31 +02:00
f1e490b1ad
This was originally based on libsbc, and was fully integrated into ffmpeg. Rough speed test: C version: speed= 592x MMX version: speed= 785x
169 lines
5.6 KiB
NASM
169 lines
5.6 KiB
NASM
;******************************************************************************
|
|
;* SIMD optimized SBC encoder DSP functions
|
|
;*
|
|
;* Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org>
|
|
;* Copyright (C) 2008-2010 Nokia Corporation
|
|
;* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
|
|
;* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
|
|
;* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com>
|
|
;*
|
|
;* This file is part of FFmpeg.
|
|
;*
|
|
;* FFmpeg 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.
|
|
;*
|
|
;* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
;******************************************************************************
|
|
|
|
%include "libavutil/x86/x86util.asm"
|
|
|
|
SECTION_RODATA
|
|
|
|
scale_mask: times 2 dd 0x8000 ; 1 << (SBC_PROTO_FIXED_SCALE - 1)
|
|
|
|
SECTION .text
|
|
|
|
%macro NIDN 3
|
|
%ifnidn %2, %3
|
|
%1 %2, %3
|
|
%endif
|
|
%endmacro
|
|
|
|
%macro ANALYZE_MAC 9 ; out1, out2, in1, in2, tmp1, tmp2, add1, add2, offset
|
|
NIDN movq, %5, %3
|
|
NIDN movq, %6, %4
|
|
pmaddwd %5, [constsq+%9]
|
|
pmaddwd %6, [constsq+%9+8]
|
|
NIDN paddd, %1, %7
|
|
NIDN paddd, %2, %8
|
|
%endmacro
|
|
|
|
%macro ANALYZE_MAC_IN 7 ; out1, out2, tmp1, tmp2, add1, add2, offset
|
|
ANALYZE_MAC %1, %2, [inq+%7], [inq+%7+8], %3, %4, %5, %6, %7
|
|
%endmacro
|
|
|
|
%macro ANALYZE_MAC_REG 7 ; out1, out2, in, tmp1, tmp2, offset, pack
|
|
%ifidn %7, pack
|
|
psrad %3, 16 ; SBC_PROTO_FIXED_SCALE
|
|
packssdw %3, %3
|
|
%endif
|
|
ANALYZE_MAC %1, %2, %3, %3, %4, %5, %4, %5, %6
|
|
%endmacro
|
|
|
|
;*******************************************************************
|
|
;void ff_sbc_analyze_4(const int16_t *in, int32_t *out, const int16_t *consts);
|
|
;*******************************************************************
|
|
INIT_MMX mmx
|
|
cglobal sbc_analyze_4, 3, 3, 4, in, out, consts
|
|
ANALYZE_MAC_IN m0, m1, m0, m1, [scale_mask], [scale_mask], 0
|
|
ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 16
|
|
ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 32
|
|
ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 48
|
|
ANALYZE_MAC_IN m0, m1, m2, m3, m2, m3, 64
|
|
|
|
ANALYZE_MAC_REG m0, m2, m0, m0, m2, 80, pack
|
|
ANALYZE_MAC_REG m0, m2, m1, m1, m3, 96, pack
|
|
|
|
movq [outq ], m0
|
|
movq [outq+8], m2
|
|
|
|
RET
|
|
|
|
|
|
;*******************************************************************
|
|
;void ff_sbc_analyze_8(const int16_t *in, int32_t *out, const int16_t *consts);
|
|
;*******************************************************************
|
|
INIT_MMX mmx
|
|
cglobal sbc_analyze_8, 3, 3, 4, in, out, consts
|
|
ANALYZE_MAC_IN m0, m1, m0, m1, [scale_mask], [scale_mask], 0
|
|
ANALYZE_MAC_IN m2, m3, m2, m3, [scale_mask], [scale_mask], 16
|
|
ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 32
|
|
ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 48
|
|
ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 64
|
|
ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 80
|
|
ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 96
|
|
ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 112
|
|
ANALYZE_MAC_IN m0, m1, m4, m5, m4, m5, 128
|
|
ANALYZE_MAC_IN m2, m3, m6, m7, m6, m7, 144
|
|
|
|
ANALYZE_MAC_REG m4, m5, m0, m4, m5, 160, pack
|
|
ANALYZE_MAC_REG m4, m5, m1, m6, m7, 192, pack
|
|
ANALYZE_MAC_REG m4, m5, m2, m6, m7, 224, pack
|
|
ANALYZE_MAC_REG m4, m5, m3, m6, m7, 256, pack
|
|
|
|
movq [outq ], m4
|
|
movq [outq+8], m5
|
|
|
|
ANALYZE_MAC_REG m0, m5, m0, m0, m5, 176, no
|
|
ANALYZE_MAC_REG m0, m5, m1, m1, m7, 208, no
|
|
ANALYZE_MAC_REG m0, m5, m2, m2, m7, 240, no
|
|
ANALYZE_MAC_REG m0, m5, m3, m3, m7, 272, no
|
|
|
|
movq [outq+16], m0
|
|
movq [outq+24], m5
|
|
|
|
RET
|
|
|
|
|
|
;*******************************************************************
|
|
;void ff_sbc_calc_scalefactors(int32_t sb_sample_f[16][2][8],
|
|
; uint32_t scale_factor[2][8],
|
|
; int blocks, int channels, int subbands)
|
|
;*******************************************************************
|
|
INIT_MMX mmx
|
|
cglobal sbc_calc_scalefactors, 5, 7, 4, sb_sample_f, scale_factor, blocks, channels, subbands, ptr, blk
|
|
; subbands = 4 * subbands * channels
|
|
movq m3, [scale_mask]
|
|
shl subbandsd, 2
|
|
cmp channelsd, 2
|
|
jl .loop_1
|
|
shl subbandsd, 1
|
|
|
|
.loop_1:
|
|
sub subbandsq, 8
|
|
lea ptrq, [sb_sample_fq + subbandsq]
|
|
|
|
; blk = (blocks - 1) * 64;
|
|
lea blkq, [blocksq - 1]
|
|
shl blkd, 6
|
|
|
|
movq m0, m3
|
|
.loop_2:
|
|
movq m1, [ptrq+blkq]
|
|
pxor m2, m2
|
|
pcmpgtd m1, m2
|
|
paddd m1, [ptrq+blkq]
|
|
pcmpgtd m2, m1
|
|
pxor m1, m2
|
|
|
|
por m0, m1
|
|
|
|
sub blkq, 64
|
|
jns .loop_2
|
|
|
|
movd blkd, m0
|
|
psrlq m0, 32
|
|
bsr blkd, blkd
|
|
sub blkd, 15 ; SCALE_OUT_BITS
|
|
mov [scale_factorq + subbandsq], blkd
|
|
|
|
movd blkd, m0
|
|
bsr blkd, blkd
|
|
sub blkd, 15 ; SCALE_OUT_BITS
|
|
mov [scale_factorq + subbandsq + 4], blkd
|
|
|
|
cmp subbandsq, 0
|
|
jg .loop_1
|
|
|
|
emms
|
|
RET
|