avcodec/dca: remove old decoder

Remove all files and functions which are not going to be reused,
and disable all functions and FATE tests temporarily which will be.

5 files changed, 3 insertions, 600 deletions

diff --git a/libavcodec/arm/Makefile b/libavcodec/arm/Makefile
index 6a29a5f..b2f5a5a 100644
--- a/libavcodec/arm/Makefile
+++ b/libavcodec/arm/Makefile
@@ -36,8 +36,7 @@ OBJS-$(CONFIG_VP8DSP)                  += arm/vp8dsp_init_arm.o
 # decoders/encoders
 OBJS-$(CONFIG_AAC_DECODER)             += arm/aacpsdsp_init_arm.o       \
                                           arm/sbrdsp_init_arm.o
-OBJS-$(CONFIG_DCA_DECODER)             += arm/dcadsp_init_arm.o         \
-                                          arm/synth_filter_init_arm.o
+#OBJS-$(CONFIG_DCA_DECODER)             += arm/synth_filter_init_arm.o
 OBJS-$(CONFIG_HEVC_DECODER)            += arm/hevcdsp_init_arm.o
 OBJS-$(CONFIG_MLP_DECODER)             += arm/mlpdsp_init_arm.o
 OBJS-$(CONFIG_RV40_DECODER)            += arm/rv40dsp_init_arm.o
@@ -88,8 +87,7 @@ VFP-OBJS-$(CONFIG_FMTCONVERT)          += arm/fmtconvert_vfp.o
 VFP-OBJS-$(CONFIG_MDCT)                += arm/mdct_vfp.o
 
 # decoders/encoders
-VFP-OBJS-$(CONFIG_DCA_DECODER)         += arm/dcadsp_vfp.o              \
-                                          arm/synth_filter_vfp.o
+#VFP-OBJS-$(CONFIG_DCA_DECODER)         += arm/synth_filter_vfp.o
 
 
 # NEON optimizations
@@ -128,8 +126,7 @@ NEON-OBJS-$(CONFIG_VP8DSP)             += arm/vp8dsp_init_neon.o        \
 NEON-OBJS-$(CONFIG_AAC_DECODER)        += arm/aacpsdsp_neon.o           \
                                           arm/sbrdsp_neon.o
 NEON-OBJS-$(CONFIG_LLAUDDSP)           += arm/lossless_audiodsp_neon.o
-NEON-OBJS-$(CONFIG_DCA_DECODER)        += arm/dcadsp_neon.o             \
-                                          arm/synth_filter_neon.o
+#NEON-OBJS-$(CONFIG_DCA_DECODER)        += arm/synth_filter_neon.o
 NEON-OBJS-$(CONFIG_HEVC_DECODER)       += arm/hevcdsp_init_neon.o       \
                                           arm/hevcdsp_deblock_neon.o    \
                                           arm/hevcdsp_idct_neon.o       \
diff --git a/libavcodec/arm/dca.h b/libavcodec/arm/dca.h
index 6e87111..ae4b730 100644
--- a/libavcodec/arm/dca.h
+++ b/libavcodec/arm/dca.h
@@ -24,7 +24,6 @@
 #include <stdint.h>
 
 #include "config.h"
-#include "libavcodec/dcadsp.h"
 #include "libavcodec/mathops.h"
 
 #if HAVE_ARMV6_INLINE && AV_GCC_VERSION_AT_LEAST(4,4) && !CONFIG_THUMB
diff --git a/libavcodec/arm/dcadsp_init_arm.c b/libavcodec/arm/dcadsp_init_arm.c
deleted file mode 100644
index febb444..0000000
--- a/libavcodec/arm/dcadsp_init_arm.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (c) 2010 Mans Rullgard <mans@mansr.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 "config.h"
-
-#include "libavutil/arm/cpu.h"
-#include "libavutil/attributes.h"
-#include "libavcodec/dcadsp.h"
-
-void ff_dca_lfe_fir0_neon(float *out, const float *in, const float *coefs);
-void ff_dca_lfe_fir1_neon(float *out, const float *in, const float *coefs);
-
-void ff_dca_lfe_fir32_vfp(float *out, const float *in, const float *coefs);
-void ff_dca_lfe_fir64_vfp(float *out, const float *in, const float *coefs);
-
-void ff_dca_qmf_32_subbands_vfp(float samples_in[32][8], int sb_act,
-                                SynthFilterContext *synth, FFTContext *imdct,
-                                float synth_buf_ptr[512],
-                                int *synth_buf_offset, float synth_buf2[32],
-                                const float window[512], float *samples_out,
-                                float raXin[32], float scale);
-
-av_cold void ff_dcadsp_init_arm(DCADSPContext *s)
-{
-    int cpu_flags = av_get_cpu_flags();
-
-    if (have_vfp_vm(cpu_flags)) {
-        s->lfe_fir[0]      = ff_dca_lfe_fir32_vfp;
-        s->lfe_fir[1]      = ff_dca_lfe_fir64_vfp;
-        s->qmf_32_subbands = ff_dca_qmf_32_subbands_vfp;
-    }
-    if (have_neon(cpu_flags)) {
-        s->lfe_fir[0] = ff_dca_lfe_fir0_neon;
-        s->lfe_fir[1] = ff_dca_lfe_fir1_neon;
-    }
-}
diff --git a/libavcodec/arm/dcadsp_neon.S b/libavcodec/arm/dcadsp_neon.S
deleted file mode 100644
index 101fee0..0000000
--- a/libavcodec/arm/dcadsp_neon.S
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (c) 2010 Mans Rullgard <mans@mansr.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/arm/asm.S"
-
-function ff_dca_lfe_fir0_neon, export=1
-        push            {r4-r6,lr}
-        mov             r3,  #32                @ decifactor
-        mov             r6,  #256/32
-        b               dca_lfe_fir
-endfunc
-
-function ff_dca_lfe_fir1_neon, export=1
-        push            {r4-r6,lr}
-        mov             r3,  #64                @ decifactor
-        mov             r6,  #256/64
-dca_lfe_fir:
-        add             r4,  r0,  r3,  lsl #2   @ out2
-        add             r5,  r2,  #256*4-16     @ cf1
-        sub             r1,  r1,  #12
-        mov             lr,  #-16
-1:
-        vmov.f32        q2,  #0.0               @ v0
-        vmov.f32        q3,  #0.0               @ v1
-        mov             r12, r6
-2:
-        vld1.32         {q8},     [r2,:128]!    @ cf0
-        vld1.32         {q9},     [r5,:128], lr @ cf1
-        vld1.32         {q1},     [r1], lr      @ in
-        subs            r12, r12, #4
-        vrev64.32       q10, q8
-        vmla.f32        q3,  q1,  q9
-        vmla.f32        d4,  d2,  d21
-        vmla.f32        d5,  d3,  d20
-        bne             2b
-
-        add             r1,  r1,  r6,  lsl #2
-        subs            r3,  r3,  #1
-        vadd.f32        d4,  d4,  d5
-        vadd.f32        d6,  d6,  d7
-        vpadd.f32       d5,  d4,  d6
-        vst1.32         {d5[0]},  [r0,:32]!
-        vst1.32         {d5[1]},  [r4,:32]!
-        bne             1b
-
-        pop             {r4-r6,pc}
-endfunc
diff --git a/libavcodec/arm/dcadsp_vfp.S b/libavcodec/arm/dcadsp_vfp.S
deleted file mode 100644
index 2e09f0e..0000000
--- a/libavcodec/arm/dcadsp_vfp.S
+++ /dev/null
@@ -1,476 +0,0 @@
-/*
- * Copyright (c) 2013 RISC OS Open Ltd
- * Author: Ben Avison <bavison@riscosopen.org>
- *
- * 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/arm/asm.S"
-
-POUT          .req    a1
-PIN           .req    a2
-PCOEF         .req    a3
-OLDFPSCR      .req    a4
-COUNTER       .req    ip
-
-IN0           .req    s4
-IN1           .req    s5
-IN2           .req    s6
-IN3           .req    s7
-IN4           .req    s0
-IN5           .req    s1
-IN6           .req    s2
-IN7           .req    s3
-COEF0         .req    s8   @ coefficient elements
-COEF1         .req    s9
-COEF2         .req    s10
-COEF3         .req    s11
-COEF4         .req    s12
-COEF5         .req    s13
-COEF6         .req    s14
-COEF7         .req    s15
-ACCUM0        .req    s16  @ double-buffered multiply-accumulate results
-ACCUM4        .req    s20
-POST0         .req    s24  @ do long-latency post-multiply in this vector in parallel
-POST1         .req    s25
-POST2         .req    s26
-POST3         .req    s27
-
-
-.macro inner_loop  decifactor, dir, tail, head
- .ifc "\dir","up"
-  .set X, 0
-  .set Y, 4
- .else
-  .set X, 4*JMAX*4 - 4
-  .set Y, -4
- .endif
- .ifnc "\head",""
-        vldr    COEF0, [PCOEF, #X + (0*JMAX + 0) * Y]
-        vldr    COEF1, [PCOEF, #X + (1*JMAX + 0) * Y]
-        vldr    COEF2, [PCOEF, #X + (2*JMAX + 0) * Y]
-        vldr    COEF3, [PCOEF, #X + (3*JMAX + 0) * Y]
- .endif
- .ifnc "\tail",""
-        vadd.f  POST0, ACCUM0, ACCUM4   @ vector operation
- .endif
- .ifnc "\head",""
-        vmul.f  ACCUM0, COEF0, IN0      @ vector = vector * scalar
-        vldr    COEF4, [PCOEF, #X + (0*JMAX + 1) * Y]
-        vldr    COEF5, [PCOEF, #X + (1*JMAX + 1) * Y]
-        vldr    COEF6, [PCOEF, #X + (2*JMAX + 1) * Y]
- .endif
- .ifnc "\head",""
-        vldr    COEF7, [PCOEF, #X + (3*JMAX + 1) * Y]
-   .ifc "\tail",""
-        vmul.f  ACCUM4, COEF4, IN1      @ vector operation
-   .endif
-        vldr    COEF0, [PCOEF, #X + (0*JMAX + 2) * Y]
-        vldr    COEF1, [PCOEF, #X + (1*JMAX + 2) * Y]
-   .ifnc "\tail",""
-        vmul.f  ACCUM4, COEF4, IN1      @ vector operation
-   .endif
-        vldr    COEF2, [PCOEF, #X + (2*JMAX + 2) * Y]
-        vldr    COEF3, [PCOEF, #X + (3*JMAX + 2) * Y]
- .endif
- .ifnc "\tail",""
-        vstmia  POUT!, {POST0-POST3}
- .endif
- .ifnc "\head",""
-        vmla.f  ACCUM0, COEF0, IN2      @ vector = vector * scalar
-        vldr    COEF4, [PCOEF, #X + (0*JMAX + 3) * Y]
-        vldr    COEF5, [PCOEF, #X + (1*JMAX + 3) * Y]
-        vldr    COEF6, [PCOEF, #X + (2*JMAX + 3) * Y]
-        vldr    COEF7, [PCOEF, #X + (3*JMAX + 3) * Y]
-        vmla.f  ACCUM4, COEF4, IN3      @ vector = vector * scalar
-  .if \decifactor == 32
-        vldr    COEF0, [PCOEF, #X + (0*JMAX + 4) * Y]
-        vldr    COEF1, [PCOEF, #X + (1*JMAX + 4) * Y]
-        vldr    COEF2, [PCOEF, #X + (2*JMAX + 4) * Y]
-        vldr    COEF3, [PCOEF, #X + (3*JMAX + 4) * Y]
-        vmla.f  ACCUM0, COEF0, IN4      @ vector = vector * scalar
-        vldr    COEF4, [PCOEF, #X + (0*JMAX + 5) * Y]
-        vldr    COEF5, [PCOEF, #X + (1*JMAX + 5) * Y]
-        vldr    COEF6, [PCOEF, #X + (2*JMAX + 5) * Y]
-        vldr    COEF7, [PCOEF, #X + (3*JMAX + 5) * Y]
-        vmla.f  ACCUM4, COEF4, IN5      @ vector = vector * scalar
-        vldr    COEF0, [PCOEF, #X + (0*JMAX + 6) * Y]
-        vldr    COEF1, [PCOEF, #X + (1*JMAX + 6) * Y]
-        vldr    COEF2, [PCOEF, #X + (2*JMAX + 6) * Y]
-        vldr    COEF3, [PCOEF, #X + (3*JMAX + 6) * Y]
-        vmla.f  ACCUM0, COEF0, IN6      @ vector = vector * scalar
-        vldr    COEF4, [PCOEF, #X + (0*JMAX + 7) * Y]
-        vldr    COEF5, [PCOEF, #X + (1*JMAX + 7) * Y]
-        vldr    COEF6, [PCOEF, #X + (2*JMAX + 7) * Y]
-        vldr    COEF7, [PCOEF, #X + (3*JMAX + 7) * Y]
-        vmla.f  ACCUM4, COEF4, IN7      @ vector = vector * scalar
-  .endif
- .endif
-.endm
-
-.macro dca_lfe_fir  decifactor
-function ff_dca_lfe_fir\decifactor\()_vfp, export=1
-        fmrx    OLDFPSCR, FPSCR
-        ldr     ip, =0x03030000         @ RunFast mode, short vectors of length 4, stride 1
-        fmxr    FPSCR, ip
-        vldr    IN0, [PIN, #-0*4]
-        vldr    IN1, [PIN, #-1*4]
-        vldr    IN2, [PIN, #-2*4]
-        vldr    IN3, [PIN, #-3*4]
- .if \decifactor == 32
-  .set JMAX, 8
-        vpush   {s16-s31}
-        vldr    IN4, [PIN, #-4*4]
-        vldr    IN5, [PIN, #-5*4]
-        vldr    IN6, [PIN, #-6*4]
-        vldr    IN7, [PIN, #-7*4]
- .else
-  .set JMAX, 4
-        vpush   {s16-s27}
- .endif
-
-        mov     COUNTER, #\decifactor/4 - 1
-        inner_loop  \decifactor, up,, head
-1:      add     PCOEF, PCOEF, #4*JMAX*4
-        subs    COUNTER, COUNTER, #1
-        inner_loop  \decifactor, up, tail, head
-        bne     1b
-        inner_loop  \decifactor, up, tail
-
-        mov     COUNTER, #\decifactor/4 - 1
-        inner_loop  \decifactor, down,, head
-1:      sub     PCOEF, PCOEF, #4*JMAX*4
-        subs    COUNTER, COUNTER, #1
-        inner_loop  \decifactor, down, tail, head
-        bne     1b
-        inner_loop  \decifactor, down, tail
-
- .if \decifactor == 32
-        vpop    {s16-s31}
- .else
-        vpop    {s16-s27}
- .endif
-        fmxr    FPSCR, OLDFPSCR
-        bx      lr
-endfunc
-.endm
-
-        dca_lfe_fir  64
- .ltorg
-        dca_lfe_fir  32
-
-        .unreq  POUT
-        .unreq  PIN
-        .unreq  PCOEF
-        .unreq  OLDFPSCR
-        .unreq  COUNTER
-
-        .unreq  IN0
-        .unreq  IN1
-        .unreq  IN2
-        .unreq  IN3
-        .unreq  IN4
-        .unreq  IN5
-        .unreq  IN6
-        .unreq  IN7
-        .unreq  COEF0
-        .unreq  COEF1
-        .unreq  COEF2
-        .unreq  COEF3
-        .unreq  COEF4
-        .unreq  COEF5
-        .unreq  COEF6
-        .unreq  COEF7
-        .unreq  ACCUM0
-        .unreq  ACCUM4
-        .unreq  POST0
-        .unreq  POST1
-        .unreq  POST2
-        .unreq  POST3
-
-
-IN      .req    a1
-SBACT   .req    a2
-OLDFPSCR .req   a3
-IMDCT   .req    a4
-WINDOW  .req    v1
-OUT     .req    v2
-BUF     .req    v3
-SCALEINT .req   v4 @ only used in softfp case
-COUNT   .req    v5
-
-SCALE   .req    s0
-
-/* Stack layout differs in softfp and hardfp cases:
- *
- * hardfp
- *      fp -> 6 arg words saved by caller
- *            a3,a4,v1-v3,v5,fp,lr on entry (a3 just to pad to 8 bytes)
- *            s16-s23 on entry
- *            align 16
- *     buf -> 8*32*4 bytes buffer
- *            s0 on entry
- *      sp -> 3 arg words for callee
- *
- * softfp
- *      fp -> 7 arg words saved by caller
- *            a4,v1-v5,fp,lr on entry
- *            s16-s23 on entry
- *            align 16
- *     buf -> 8*32*4 bytes buffer
- *      sp -> 4 arg words for callee
- */
-
-/* void ff_dca_qmf_32_subbands_vfp(float samples_in[32][8], int sb_act,
- *                                 SynthFilterContext *synth, FFTContext *imdct,
- *                                 float (*synth_buf_ptr)[512],
- *                                 int *synth_buf_offset, float (*synth_buf2)[32],
- *                                 const float (*window)[512], float *samples_out,
- *                                 float (*raXin)[32], float scale);
- */
-function ff_dca_qmf_32_subbands_vfp, export=1
-VFP     push    {a3-a4,v1-v3,v5,fp,lr}
-NOVFP   push    {a4,v1-v5,fp,lr}
-        add     fp, sp, #8*4
-        vpush   {s16-s23}
-        @ The buffer pointed at by raXin isn't big enough for us to do a
-        @ complete matrix transposition as we want to, so allocate an
-        @ alternative buffer from the stack. Align to 4 words for speed.
-        sub     BUF, sp, #8*32*4
-        bic     BUF, BUF, #15
-        mov     sp, BUF
-        ldr     lr, =0x03330000     @ RunFast mode, short vectors of length 4, stride 2
-        fmrx    OLDFPSCR, FPSCR
-        fmxr    FPSCR, lr
-        @ COUNT is used to count down 2 things at once:
-        @ bits 0-4 are the number of word pairs remaining in the output row
-        @ bits 5-31 are the number of words to copy (with possible negation)
-        @   from the source matrix before we start zeroing the remainder
-        mov     COUNT, #(-4 << 5) + 16
-        adds    COUNT, COUNT, SBACT, lsl #5
-        bmi     2f
-1:
-        vldr    s8,  [IN, #(0*8+0)*4]
-        vldr    s10, [IN, #(0*8+1)*4]
-        vldr    s12, [IN, #(0*8+2)*4]
-        vldr    s14, [IN, #(0*8+3)*4]
-        vldr    s16, [IN, #(0*8+4)*4]
-        vldr    s18, [IN, #(0*8+5)*4]
-        vldr    s20, [IN, #(0*8+6)*4]
-        vldr    s22, [IN, #(0*8+7)*4]
-        vneg.f  s8, s8
-        vldr    s9,  [IN, #(1*8+0)*4]
-        vldr    s11, [IN, #(1*8+1)*4]
-        vldr    s13, [IN, #(1*8+2)*4]
-        vldr    s15, [IN, #(1*8+3)*4]
-        vneg.f  s16, s16
-        vldr    s17, [IN, #(1*8+4)*4]
-        vldr    s19, [IN, #(1*8+5)*4]
-        vldr    s21, [IN, #(1*8+6)*4]
-        vldr    s23, [IN, #(1*8+7)*4]
-        vstr    d4,  [BUF, #(0*32+0)*4]
-        vstr    d5,  [BUF, #(1*32+0)*4]
-        vstr    d6,  [BUF, #(2*32+0)*4]
-        vstr    d7,  [BUF, #(3*32+0)*4]
-        vstr    d8,  [BUF, #(4*32+0)*4]
-        vstr    d9,  [BUF, #(5*32+0)*4]
-        vstr    d10, [BUF, #(6*32+0)*4]
-        vstr    d11, [BUF, #(7*32+0)*4]
-        vldr    s9,  [IN, #(3*8+0)*4]
-        vldr    s11, [IN, #(3*8+1)*4]
-        vldr    s13, [IN, #(3*8+2)*4]
-        vldr    s15, [IN, #(3*8+3)*4]
-        vldr    s17, [IN, #(3*8+4)*4]
-        vldr    s19, [IN, #(3*8+5)*4]
-        vldr    s21, [IN, #(3*8+6)*4]
-        vldr    s23, [IN, #(3*8+7)*4]
-        vneg.f  s9, s9
-        vldr    s8,  [IN, #(2*8+0)*4]
-        vldr    s10, [IN, #(2*8+1)*4]
-        vldr    s12, [IN, #(2*8+2)*4]
-        vldr    s14, [IN, #(2*8+3)*4]
-        vneg.f  s17, s17
-        vldr    s16, [IN, #(2*8+4)*4]
-        vldr    s18, [IN, #(2*8+5)*4]
-        vldr    s20, [IN, #(2*8+6)*4]
-        vldr    s22, [IN, #(2*8+7)*4]
-        vstr    d4,  [BUF, #(0*32+2)*4]
-        vstr    d5,  [BUF, #(1*32+2)*4]
-        vstr    d6,  [BUF, #(2*32+2)*4]
-        vstr    d7,  [BUF, #(3*32+2)*4]
-        vstr    d8,  [BUF, #(4*32+2)*4]
-        vstr    d9,  [BUF, #(5*32+2)*4]
-        vstr    d10, [BUF, #(6*32+2)*4]
-        vstr    d11, [BUF, #(7*32+2)*4]
-        add     IN, IN, #4*8*4
-        add     BUF, BUF, #4*4
-        subs    COUNT, COUNT, #(4 << 5) + 2
-        bpl     1b
-2:      @ Now deal with trailing < 4 samples
-        adds    COUNT, COUNT, #3 << 5
-        bmi     4f  @ sb_act was a multiple of 4
-        bics    lr, COUNT, #0x1F
-        bne     3f
-        @ sb_act was n*4+1
-        vldr    s8,  [IN, #(0*8+0)*4]
-        vldr    s10, [IN, #(0*8+1)*4]
-        vldr    s12, [IN, #(0*8+2)*4]
-        vldr    s14, [IN, #(0*8+3)*4]
-        vldr    s16, [IN, #(0*8+4)*4]
-        vldr    s18, [IN, #(0*8+5)*4]
-        vldr    s20, [IN, #(0*8+6)*4]
-        vldr    s22, [IN, #(0*8+7)*4]
-        vneg.f  s8, s8
-        vldr    s9,  zero
-        vldr    s11, zero
-        vldr    s13, zero
-        vldr    s15, zero
-        vneg.f  s16, s16
-        vldr    s17, zero
-        vldr    s19, zero
-        vldr    s21, zero
-        vldr    s23, zero
-        vstr    d4,  [BUF, #(0*32+0)*4]
-        vstr    d5,  [BUF, #(1*32+0)*4]
-        vstr    d6,  [BUF, #(2*32+0)*4]
-        vstr    d7,  [BUF, #(3*32+0)*4]
-        vstr    d8,  [BUF, #(4*32+0)*4]
-        vstr    d9,  [BUF, #(5*32+0)*4]
-        vstr    d10, [BUF, #(6*32+0)*4]
-        vstr    d11, [BUF, #(7*32+0)*4]
-        add     BUF, BUF, #2*4
-        sub     COUNT, COUNT, #1
-        b       4f
-3:      @ sb_act was n*4+2 or n*4+3, so do the first 2
-        vldr    s8,  [IN, #(0*8+0)*4]
-        vldr    s10, [IN, #(0*8+1)*4]
-        vldr    s12, [IN, #(0*8+2)*4]
-        vldr    s14, [IN, #(0*8+3)*4]
-        vldr    s16, [IN, #(0*8+4)*4]
-        vldr    s18, [IN, #(0*8+5)*4]
-        vldr    s20, [IN, #(0*8+6)*4]
-        vldr    s22, [IN, #(0*8+7)*4]
-        vneg.f  s8, s8
-        vldr    s9,  [IN, #(1*8+0)*4]
-        vldr    s11, [IN, #(1*8+1)*4]
-        vldr    s13, [IN, #(1*8+2)*4]
-        vldr    s15, [IN, #(1*8+3)*4]
-        vneg.f  s16, s16
-        vldr    s17, [IN, #(1*8+4)*4]
-        vldr    s19, [IN, #(1*8+5)*4]
-        vldr    s21, [IN, #(1*8+6)*4]
-        vldr    s23, [IN, #(1*8+7)*4]
-        vstr    d4,  [BUF, #(0*32+0)*4]
-        vstr    d5,  [BUF, #(1*32+0)*4]
-        vstr    d6,  [BUF, #(2*32+0)*4]
-        vstr    d7,  [BUF, #(3*32+0)*4]
-        vstr    d8,  [BUF, #(4*32+0)*4]
-        vstr    d9,  [BUF, #(5*32+0)*4]
-        vstr    d10, [BUF, #(6*32+0)*4]
-        vstr    d11, [BUF, #(7*32+0)*4]
-        add     BUF, BUF, #2*4
-        sub     COUNT, COUNT, #(2 << 5) + 1
-        bics    lr, COUNT, #0x1F
-        bne     4f
-        @ sb_act was n*4+3
-        vldr    s8,  [IN, #(2*8+0)*4]
-        vldr    s10, [IN, #(2*8+1)*4]
-        vldr    s12, [IN, #(2*8+2)*4]
-        vldr    s14, [IN, #(2*8+3)*4]
-        vldr    s16, [IN, #(2*8+4)*4]
-        vldr    s18, [IN, #(2*8+5)*4]
-        vldr    s20, [IN, #(2*8+6)*4]
-        vldr    s22, [IN, #(2*8+7)*4]
-        vldr    s9,  zero
-        vldr    s11, zero
-        vldr    s13, zero
-        vldr    s15, zero
-        vldr    s17, zero
-        vldr    s19, zero
-        vldr    s21, zero
-        vldr    s23, zero
-        vstr    d4,  [BUF, #(0*32+0)*4]
-        vstr    d5,  [BUF, #(1*32+0)*4]
-        vstr    d6,  [BUF, #(2*32+0)*4]
-        vstr    d7,  [BUF, #(3*32+0)*4]
-        vstr    d8,  [BUF, #(4*32+0)*4]
-        vstr    d9,  [BUF, #(5*32+0)*4]
-        vstr    d10, [BUF, #(6*32+0)*4]
-        vstr    d11, [BUF, #(7*32+0)*4]
-        add     BUF, BUF, #2*4
-        sub     COUNT, COUNT, #1
-4:      @ Now fill the remainder with 0
-        vldr    s8, zero
-        vldr    s9, zero
-        ands    COUNT, COUNT, #0x1F
-        beq     6f
-5:      vstr    d4, [BUF, #(0*32+0)*4]
-        vstr    d4, [BUF, #(1*32+0)*4]
-        vstr    d4, [BUF, #(2*32+0)*4]
-        vstr    d4, [BUF, #(3*32+0)*4]
-        vstr    d4, [BUF, #(4*32+0)*4]
-        vstr    d4, [BUF, #(5*32+0)*4]
-        vstr    d4, [BUF, #(6*32+0)*4]
-        vstr    d4, [BUF, #(7*32+0)*4]
-        add     BUF, BUF, #2*4
-        subs    COUNT, COUNT, #1
-        bne     5b
-6:
-        fmxr    FPSCR, OLDFPSCR
-        ldr     WINDOW, [fp, #3*4]
-        ldr     OUT, [fp, #4*4]
-        sub     BUF, BUF, #32*4
-NOVFP   ldr     SCALEINT, [fp, #6*4]
-        mov     COUNT, #8
-VFP     vpush   {SCALE}
-VFP     sub     sp, sp, #3*4
-NOVFP   sub     sp, sp, #4*4
-7:
-VFP     ldr     a1, [fp, #-7*4]     @ imdct
-NOVFP   ldr     a1, [fp, #-8*4]
-        ldmia   fp, {a2-a4}
-VFP     stmia   sp, {WINDOW, OUT, BUF}
-NOVFP   stmia   sp, {WINDOW, OUT, BUF, SCALEINT}
-VFP     vldr    SCALE, [sp, #3*4]
-        bl      X(ff_synth_filter_float_vfp)
-        add     OUT, OUT, #32*4
-        add     BUF, BUF, #32*4
-        subs    COUNT, COUNT, #1
-        bne     7b
-
-A       sub     sp, fp, #(8+8)*4
-T       sub     fp, fp, #(8+8)*4
-T       mov     sp, fp
-        vpop    {s16-s23}
-VFP     pop     {a3-a4,v1-v3,v5,fp,pc}
-NOVFP   pop     {a4,v1-v5,fp,pc}
-endfunc
-
-        .unreq  IN
-        .unreq  SBACT
-        .unreq  OLDFPSCR
-        .unreq  IMDCT
-        .unreq  WINDOW
-        .unreq  OUT
-        .unreq  BUF
-        .unreq  SCALEINT
-        .unreq  COUNT
-
-        .unreq  SCALE
-
-        .align 2
-zero:   .word   0