I'm a bit confused because the calculation here goes up to 32 bits and then
returns to 8 bits. It seems that the vmax and vnclipu instructions can't be
removed by using round-related instructions？
Rémi Denis-Courmont <r...@remlab.net> 于2024年7月29日周一 23:21写道：
> Le tiistaina 23. heinäkuuta 2024, 11.51.48 EEST u...@foxmail.com a écrit :
> > From: sunyuechi <sunyue...@iscas.ac.cn>
> >
> > C908 X60
> > vp9_avg_8tap_smooth_4h_8bpp_c : 12.7 11.2
> > vp9_avg_8tap_smooth_4h_8bpp_rvv_i32 : 4.7 4.2
> > vp9_avg_8tap_smooth_4v_8bpp_c : 29.7 12.5
> > vp9_avg_8tap_smooth_4v_8bpp_rvv_i32 : 4.7 4.2
> > vp9_avg_8tap_smooth_8h_8bpp_c : 48.7 42.2
> > vp9_avg_8tap_smooth_8h_8bpp_rvv_i32 : 9.5 8.5
> > vp9_avg_8tap_smooth_8v_8bpp_c : 49.7 45.5
> > vp9_avg_8tap_smooth_8v_8bpp_rvv_i32 : 9.5 8.5
> > vp9_avg_8tap_smooth_16h_8bpp_c : 192.0 166.5
> > vp9_avg_8tap_smooth_16h_8bpp_rvv_i32 : 21.7 19.5
> > vp9_avg_8tap_smooth_16v_8bpp_c : 191.2 175.2
> > vp9_avg_8tap_smooth_16v_8bpp_rvv_i32 : 21.2 19.0
> > vp9_avg_8tap_smooth_32h_8bpp_c : 780.2 663.2
> > vp9_avg_8tap_smooth_32h_8bpp_rvv_i32 : 68.2 60.5
> > vp9_avg_8tap_smooth_32v_8bpp_c : 770.0 685.7
> > vp9_avg_8tap_smooth_32v_8bpp_rvv_i32 : 67.0 59.5
> > vp9_avg_8tap_smooth_64h_8bpp_c : 3116.2 2648.2
> > vp9_avg_8tap_smooth_64h_8bpp_rvv_i32 : 270.7 120.7
> > vp9_avg_8tap_smooth_64v_8bpp_c : 3058.5 2731.7
> > vp9_avg_8tap_smooth_64v_8bpp_rvv_i32 : 266.5 119.0
> > vp9_put_8tap_smooth_4h_8bpp_c : 11.0 9.7
> > vp9_put_8tap_smooth_4h_8bpp_rvv_i32 : 4.2 3.7
> > vp9_put_8tap_smooth_4v_8bpp_c : 11.7 10.5
> > vp9_put_8tap_smooth_4v_8bpp_rvv_i32 : 4.0 3.7
> > vp9_put_8tap_smooth_8h_8bpp_c : 42.0 37.5
> > vp9_put_8tap_smooth_8h_8bpp_rvv_i32 : 8.5 7.7
> > vp9_put_8tap_smooth_8v_8bpp_c : 43.5 38.5
> > vp9_put_8tap_smooth_8v_8bpp_rvv_i32 : 8.7 7.7
> > vp9_put_8tap_smooth_16h_8bpp_c : 181.7 147.2
> > vp9_put_8tap_smooth_16h_8bpp_rvv_i32 : 20.0 18.0
> > vp9_put_8tap_smooth_16v_8bpp_c : 168.5 149.7
> > vp9_put_8tap_smooth_16v_8bpp_rvv_i32 : 19.7 17.5
> > vp9_put_8tap_smooth_32h_8bpp_c : 675.0 586.5
> > vp9_put_8tap_smooth_32h_8bpp_rvv_i32 : 65.2 58.0
> > vp9_put_8tap_smooth_32v_8bpp_c : 664.7 591.2
> > vp9_put_8tap_smooth_32v_8bpp_rvv_i32 : 64.0 57.0
> > vp9_put_8tap_smooth_64h_8bpp_c : 2696.2 2339.0
> > vp9_put_8tap_smooth_64h_8bpp_rvv_i32 : 259.7 115.7
> > vp9_put_8tap_smooth_64v_8bpp_c : 2691.0 2348.5
> > vp9_put_8tap_smooth_64v_8bpp_rvv_i32 : 255.5 114.0
> > ---
> > libavcodec/riscv/vp9_mc_rvv.S | 193 +++++++++++++++++++++++++++++++++
> > libavcodec/riscv/vp9dsp.h | 72 ++++++++----
> > libavcodec/riscv/vp9dsp_init.c | 38 ++++++-
> > 3 files changed, 278 insertions(+), 25 deletions(-)
> >
> > diff --git a/libavcodec/riscv/vp9_mc_rvv.S
> b/libavcodec/riscv/vp9_mc_rvv.S
> > index 5241562531..6a4be7b9bd 100644
> > --- a/libavcodec/riscv/vp9_mc_rvv.S
> > +++ b/libavcodec/riscv/vp9_mc_rvv.S
> > @@ -36,6 +36,18 @@
> > .endif
> > .endm
> >
> > +.macro vsetvlstatic16 len
> > +.ifc \len,4
> > + vsetvli zero, zero, e16, mf2, ta, ma
> > +.elseif \len == 8
> > + vsetvli zero, zero, e16, m1, ta, ma
> > +.elseif \len == 16
> > + vsetvli zero, zero, e16, m2, ta, ma
> > +.else
> > + vsetvli zero, zero, e16, m4, ta, ma
> > +.endif
> > +.endm
> > +
> > .macro copy_avg len
> > func ff_vp9_avg\len\()_rvv, zve32x
> > csrwi vxrm, 0
> > @@ -181,8 +193,189 @@ func ff_\op\()_vp9_bilin_64hv_rvv, zve32x
> > endfunc
> > .endm
> >
> > +.equ ff_vp9_subpel_filters_smooth, ff_vp9_subpel_filters
> > +.equ ff_vp9_subpel_filters_regular, ff_vp9_subpel_filters + 16*8*2
> > +.equ ff_vp9_subpel_filters_sharp, ff_vp9_subpel_filters + 16*8*2*2
> > +
> > +.macro epel_filter name, type, regtype, arg
> > + lla \regtype\()2, ff_vp9_subpel_filters_\name
> > +.ifc \type,v
> > + slli \regtype\()0, a6, 4
> > +.else
> > + slli \regtype\()0, a5, 4
> > +.endif
> > + add \regtype\()0, \regtype\()0, \regtype\()2
> > + lh \regtype\()1, 2(\regtype\()0)
> > + lh \regtype\()2, 4(\regtype\()0)
> > + lh \regtype\()3, 6(\regtype\()0)
> > + lh \regtype\()4, 8(\regtype\()0)
> > + lh \regtype\()5, 10(\regtype\()0)
> > + lh \regtype\()6, 12(\regtype\()0)
> > + lh \arg, 14(\regtype\()0)
> > + lh \regtype\()0, 0(\regtype\()0)
> > +.endm
> > +
> > +.macro epel_load dst, len, op, name, type, from_mem, regtype
> > +.ifc \from_mem, 1
> > + vle8.v v22, (a2)
> > +.ifc \type,v
> > + add a5, a3, a2
> > + sub a2, a2, a3
> > + vle8.v v24, (a5)
> > + vle8.v v20, (a2)
> > + sh1add a2, a3, a5
> > + add a5, a5, a3
> > + vle8.v v26, (a5)
> > + vle8.v v28, (a2)
> > + add a2, a2, a3
> > + vle8.v v30, (a2)
> > +.else
> > + addi a5, a2, 1
> > + addi a2, a2, -1
> > + vle8.v v24, (a5)
> > + vle8.v v20, (a2)
> > + addi a5, a5, 2
> > + addi a2, a2, 3
> > + vle8.v v28, (a5)
> > + vle8.v v26, (a2)
> > + addi a2, a5, 1
> > + vle8.v v30, (a2)
> > +.endif
> > +
> > +.ifc \name,smooth
> > + vwmulu.vx v16, v24, \regtype\()4
> > + vwmaccu.vx v16, \regtype\()2, v20
> > + vwmaccu.vx v16, \regtype\()5, v26
> > + vwmaccsu.vx v16, \regtype\()6, v28
> > +.else
> > + vwmulu.vx v16, v28, \regtype\()6
> > + vwmaccsu.vx v16, \regtype\()2, v20
> > + vwmaccsu.vx v16, \regtype\()5, v26
> > +.endif
> > +
> > +.ifc \regtype,t
> > + vwmaccsu.vx v16, a7, v30
> > +.else
> > + vwmaccsu.vx v16, s7, v30
> > +.endif
> > +
> > +.ifc \type,v
> > + sh1add a5, a3, a3
> > + sub a2, a2, a5
> > + sub a2, a2, a5
> > + sub a5, a2, a3
> > + vle8.v v28, (a2)
> > + vle8.v v26, (a5)
> > + sh1add a2, a3, a2
> > +.else
> > + addi a5, a2, -7
> > + addi a2, a2, -6
> > + vle8.v v26, (a5)
> > + vle8.v v28, (a2)
> > + addi a2, a2, 2
> > +.endif
> > +
> > +.ifc \name,smooth
> > + vwmaccsu.vx v16, \regtype\()1, v28
> > +.else
> > + vwmaccu.vx v16, \regtype\()1, v28
> > + vwmulu.vx v28, v24, \regtype\()4
> > +.endif
> > + vwmaccsu.vx v16, \regtype\()0, v26
> > + vwmulu.vx v20, v22, \regtype\()3
> > +.else
> > +.ifc \name,smooth
> > + vwmulu.vx v16, v8, \regtype\()4
> > + vwmaccu.vx v16, \regtype\()2, v4
> > + vwmaccu.vx v16, \regtype\()5, v10
> > + vwmaccsu.vx v16, \regtype\()6, v12
> > + vwmaccsu.vx v16, \regtype\()1, v2
> > +.else
> > + vwmulu.vx v16, v2, \regtype\()1
> > + vwmaccu.vx v16, \regtype\()6, v12
> > + vwmaccsu.vx v16, \regtype\()5, v10
> > + vwmaccsu.vx v16, \regtype\()2, v4
> > + vwmulu.vx v28, v8, \regtype\()4
> > +.endif
> > + vwmaccsu.vx v16, \regtype\()0, v0
> > + vwmulu.vx v20, v6, \regtype\()3
> > +
> > +.ifc \regtype,t
> > + vwmaccsu.vx v16, a7, v14
> > +.else
> > + vwmaccsu.vx v16, s7, v14
> > +.endif
> > +
> > +.endif
> > + li a5, 64
> > + vwadd.wx v16, v16, a5
>
> Use rounding.
>
> > + vsetvlstatic16 \len
> > +
> > +.ifc \name,smooth
> > + vwadd.vv v24, v16, v20
> > +.else
> > + vwadd.vv v24, v16, v28
> > + vwadd.wv v24, v24, v20
> > +.endif
> > + vnsra.wi v24, v24, 7
> > + vmax.vx v24, v24, zero
> > + vsetvlstatic8 \len, zero, 32, m2
> > +
> > + vnclipu.wi \dst, v24, 0
> > +.ifc \op,avg
> > + vle8.v v24, (a0)
> > + vaaddu.vv \dst, \dst, v24
> > +.endif
> > +
> > +.endm
> > +
> > +.macro epel_load_inc dst, len, op, name, type, from_mem, regtype
> > + epel_load \dst, \len, \op, \name, \type, \from_mem,
> \regtype
> > + add a2, a2, a3
> > +.endm
> > +
> > +.macro epel len, op, name, type, vlen
> > +func ff_\op\()_vp9_8tap_\name\()_\len\()\type\()_rvv\vlen\(), zve32x
> > + epel_filter \name, \type, t, a7
> > +.if \vlen < 256
> > + vsetvlstatic8 \len, a5, 32, m2
> > +.else
> > + vsetvlstatic8 \len, a5, 64, m2
> > +.endif
> > +.ifc \op,avg
> > + csrwi vxrm, 0
> > +.endif
> > +
> > +1:
> > + addi a4, a4, -1
> > + epel_load v30, \len, \op, \name, \type, 1, t
> > + vse8.v v30, (a0)
> > +.if \len == 64 && \vlen < 256
> > + addi a0, a0, 32
> > + addi a2, a2, 32
> > + epel_load v30, \len, \op, \name, \type, 1, t
> > + vse8.v v30, (a0)
> > + addi a0, a0, -32
> > + addi a2, a2, -32
> > +.endif
> > + add a2, a2, a3
> > + add a0, a0, a1
> > + bnez a4, 1b
> > +
> > + ret
> > +endfunc
> > +.endm
> > +
> > .irp len, 64, 32, 16, 8, 4
> > copy_avg \len
> > + .irp op, put, avg
> > + .irp name, regular, sharp, smooth
> > + .irp type, h, v
> > + epel \len, \op, \name, \type, 128
> > + epel \len, \op, \name, \type, 256
> > + .endr
> > + .endr
> > + .endr
> > .endr
> >
> > bilin_h_v put, h, a5
> > diff --git a/libavcodec/riscv/vp9dsp.h b/libavcodec/riscv/vp9dsp.h
> > index 8fb326dae0..5fd64a1b8c 100644
> > --- a/libavcodec/riscv/vp9dsp.h
> > +++ b/libavcodec/riscv/vp9dsp.h
> > @@ -81,33 +81,39 @@ void ff_tm_8x8_rvv(uint8_t *dst, ptrdiff_t stride,
> const
> > uint8_t *l, void ff_tm_4x4_rvv(uint8_t *dst, ptrdiff_t stride, const
> > uint8_t *l, const uint8_t *a);
> >
> > -#define VP9_8TAP_RISCV_RVV_FUNC(SIZE, type, type_idx)
>
> > \ -void ff_put_8tap_##type##_##SIZE##h_rvv(uint8_t *dst, ptrdiff_t
> > dststride, \ +#define VP9_8TAP_RISCV_RVV_FUNC(SIZE, type, type_idx,
> > min_vlen) \ +void
> > ff_put_vp9_8tap_##type##_##SIZE##h_rvv##min_vlen(uint8_t *dst,
> \ +
> > ptrdiff_t dststride,
>
> > \ const uint8_t *src, \ ptrdiff_t srcstride,
>
> > \ int h, int mx, int my); \ \ -void
> > ff_put_8tap_##type##_##SIZE##v_rvv(uint8_t *dst, ptrdiff_t dststride, \
> > +void ff_put_vp9_8tap_##type##_##SIZE##v_rvv##min_vlen(uint8_t *dst,
>
> > \ + ptrdiff_t dststride,
>
> > \ const uint8_t *src, \ ptrdiff_t srcstride,
>
> > \ int h, int mx, int my); \ \ -void
> > ff_put_8tap_##type##_##SIZE##hv_rvv(uint8_t *dst, ptrdiff_t dststride, \
> > +void ff_put_vp9_8tap_##type##_##SIZE##hv_rvv##min_vlen(uint8_t *dst,
>
> > \ + ptrdiff_t dststride,
>
> > \ const uint8_t *src, \ ptrdiff_t srcstride,
>
> > \ int h, int mx, int my); \ \ -void
> > ff_avg_8tap_##type##_##SIZE##h_rvv(uint8_t *dst, ptrdiff_t dststride, \
> > +void ff_avg_vp9_8tap_##type##_##SIZE##h_rvv##min_vlen(uint8_t *dst,
>
> > \ + ptrdiff_t dststride,
>
> > \ const uint8_t *src, \ ptrdiff_t srcstride,
>
> > \ int h, int mx, int my); \ \ -void
> > ff_avg_8tap_##type##_##SIZE##v_rvv(uint8_t *dst, ptrdiff_t dststride, \
> > +void ff_avg_vp9_8tap_##type##_##SIZE##v_rvv##min_vlen(uint8_t *dst,
>
> > \ + ptrdiff_t dststride,
>
> > \ const uint8_t *src, \ ptrdiff_t srcstride,
>
> > \ int h, int mx, int my); \ \ -void
> > ff_avg_8tap_##type##_##SIZE##hv_rvv(uint8_t *dst, ptrdiff_t dststride, \
> > +void ff_avg_vp9_8tap_##type##_##SIZE##hv_rvv##min_vlen(uint8_t *dst,
>
> > \ + ptrdiff_t dststride,
>
> > \ const uint8_t *src, \ ptrdiff_t srcstride,
>
> > \ int h, int mx, int my);
> > @@ -146,23 +152,41 @@ void ff_vp9_avg##SIZE##_rvv(uint8_t *dst, ptrdiff_t
> > dststride, \ const uint8_t *src, ptrdiff_t srcstride, \ int h, int
> > mx, int my);
> >
> > -VP9_8TAP_RISCV_RVV_FUNC(64, regular, FILTER_8TAP_REGULAR);
> > -VP9_8TAP_RISCV_RVV_FUNC(32, regular, FILTER_8TAP_REGULAR);
> > -VP9_8TAP_RISCV_RVV_FUNC(16, regular, FILTER_8TAP_REGULAR);
> > -VP9_8TAP_RISCV_RVV_FUNC(8, regular, FILTER_8TAP_REGULAR);
> > -VP9_8TAP_RISCV_RVV_FUNC(4, regular, FILTER_8TAP_REGULAR);
> > -
> > -VP9_8TAP_RISCV_RVV_FUNC(64, sharp, FILTER_8TAP_SHARP);
> > -VP9_8TAP_RISCV_RVV_FUNC(32, sharp, FILTER_8TAP_SHARP);
> > -VP9_8TAP_RISCV_RVV_FUNC(16, sharp, FILTER_8TAP_SHARP);
> > -VP9_8TAP_RISCV_RVV_FUNC(8, sharp, FILTER_8TAP_SHARP);
> > -VP9_8TAP_RISCV_RVV_FUNC(4, sharp, FILTER_8TAP_SHARP);
> > -
> > -VP9_8TAP_RISCV_RVV_FUNC(64, smooth, FILTER_8TAP_SMOOTH);
> > -VP9_8TAP_RISCV_RVV_FUNC(32, smooth, FILTER_8TAP_SMOOTH);
> > -VP9_8TAP_RISCV_RVV_FUNC(16, smooth, FILTER_8TAP_SMOOTH);
> > -VP9_8TAP_RISCV_RVV_FUNC(8, smooth, FILTER_8TAP_SMOOTH);
> > -VP9_8TAP_RISCV_RVV_FUNC(4, smooth, FILTER_8TAP_SMOOTH);
> > +VP9_8TAP_RISCV_RVV_FUNC(64, regular, FILTER_8TAP_REGULAR, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(32, regular, FILTER_8TAP_REGULAR, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(16, regular, FILTER_8TAP_REGULAR, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(8, regular, FILTER_8TAP_REGULAR, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(4, regular, FILTER_8TAP_REGULAR, 128);
> > +
> > +VP9_8TAP_RISCV_RVV_FUNC(64, sharp, FILTER_8TAP_SHARP, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(32, sharp, FILTER_8TAP_SHARP, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(16, sharp, FILTER_8TAP_SHARP, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(8, sharp, FILTER_8TAP_SHARP, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(4, sharp, FILTER_8TAP_SHARP, 128);
> > +
> > +VP9_8TAP_RISCV_RVV_FUNC(64, smooth, FILTER_8TAP_SMOOTH, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(32, smooth, FILTER_8TAP_SMOOTH, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(16, smooth, FILTER_8TAP_SMOOTH, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(8, smooth, FILTER_8TAP_SMOOTH, 128);
> > +VP9_8TAP_RISCV_RVV_FUNC(4, smooth, FILTER_8TAP_SMOOTH, 128);
> > +
> > +VP9_8TAP_RISCV_RVV_FUNC(64, regular, FILTER_8TAP_REGULAR, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(32, regular, FILTER_8TAP_REGULAR, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(16, regular, FILTER_8TAP_REGULAR, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(8, regular, FILTER_8TAP_REGULAR, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(4, regular, FILTER_8TAP_REGULAR, 256);
> > +
> > +VP9_8TAP_RISCV_RVV_FUNC(64, sharp, FILTER_8TAP_SHARP, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(32, sharp, FILTER_8TAP_SHARP, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(16, sharp, FILTER_8TAP_SHARP, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(8, sharp, FILTER_8TAP_SHARP, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(4, sharp, FILTER_8TAP_SHARP, 256);
> > +
> > +VP9_8TAP_RISCV_RVV_FUNC(64, smooth, FILTER_8TAP_SMOOTH, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(32, smooth, FILTER_8TAP_SMOOTH, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(16, smooth, FILTER_8TAP_SMOOTH, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(8, smooth, FILTER_8TAP_SMOOTH, 256);
> > +VP9_8TAP_RISCV_RVV_FUNC(4, smooth, FILTER_8TAP_SMOOTH, 256);
> >
> > VP9_BILINEAR_RISCV_RVV_FUNC(64);
> > VP9_BILINEAR_RISCV_RVV_FUNC(32);
> > diff --git a/libavcodec/riscv/vp9dsp_init.c
> b/libavcodec/riscv/vp9dsp_init.c
> > index b3700dfb08..3669070fca 100644
> > --- a/libavcodec/riscv/vp9dsp_init.c
> > +++ b/libavcodec/riscv/vp9dsp_init.c
> > @@ -49,7 +49,9 @@ static av_cold void vp9dsp_mc_init_riscv(VP9DSPContext
> > *dsp, int bpp) # endif
> >
> > #if HAVE_RVV
> > - if (bpp == 8 && (flags & AV_CPU_FLAG_RVV_I32) &&
> ff_rv_vlen_least(128))
> > { + if (bpp == 8 && (flags & AV_CPU_FLAG_RVV_I32)) {
> > + int vlenb = ff_get_rv_vlenb();
> > + if (vlenb >= 16) {
> >
> > #define init_fpel(idx1, sz) \
> > dsp->mc[idx1][FILTER_8TAP_SMOOTH ][1][0][0] =
> ff_vp9_avg##sz##_rvv; \
> > @@ -95,6 +97,40 @@ static av_cold void vp9dsp_mc_init_riscv(VP9DSPContext
> > *dsp, int bpp) dsp->mc[4][FILTER_BILINEAR ][1][1][1] =
> > ff_avg_vp9_bilin_4hv_rvv;
> >
> > #undef init_fpel
> > +
> > +#define init_subpel1(idx1, idx2, idxh, idxv, sz, dir, type, vlen) \
> > + dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][idxh][idxv] = \
> > + ff_##type##_vp9_8tap_smooth_##sz##dir##_rvv##vlen; \
> > + dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][idxh][idxv] = \
> > + ff_##type##_vp9_8tap_regular_##sz##dir##_rvv##vlen; \
> > + dsp->mc[idx1][FILTER_8TAP_SHARP ][idx2][idxh][idxv] = \
> > + ff_##type##_vp9_8tap_sharp_##sz##dir##_rvv##vlen;
> > +
> > +#define init_subpel2(idx, idxh, idxv, dir, type, vlen) \
> > + init_subpel1(0, idx, idxh, idxv, 64, dir, type, vlen); \
> > + init_subpel1(1, idx, idxh, idxv, 32, dir, type, vlen); \
> > + init_subpel1(2, idx, idxh, idxv, 16, dir, type, vlen); \
> > + init_subpel1(3, idx, idxh, idxv, 8, dir, type, vlen); \
> > + init_subpel1(4, idx, idxh, idxv, 4, dir, type, vlen)
> > +
> > + init_subpel2(0, 1, 0, h, put, 128);
> > + init_subpel2(1, 1, 0, h, avg, 128);
> > +
> > + if (flags & AV_CPU_FLAG_RVB_ADDR) {
> > + init_subpel2(0, 0, 1, v, put, 128);
> > + init_subpel2(1, 0, 1, v, avg, 128);
> > + }
> > +
> > + }
> > + if (vlenb >= 32) {
> > + init_subpel2(0, 1, 0, h, put, 256);
> > + init_subpel2(1, 1, 0, h, avg, 256);
> > +
> > + if (flags & AV_CPU_FLAG_RVB_ADDR) {
> > + init_subpel2(0, 0, 1, v, put, 256);
> > + init_subpel2(1, 0, 1, v, avg, 256);
> > + }
> > + }
> > }
> > #endif
> > #endif
>
>
> --
> 雷米‧德尼-库尔蒙
> http://www.remlab.net/
>
>
>
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