Write SSSE3 sub-pixel filter function
1. Process 16 pixels at one time instead of 8. 2. Add check for both xoffset =0 and yoffset=0, which happens during motion search. This change gave encoder 1%~3% performance gain. Change-Id: Idaa39506b48f4f8b2fbbeb45aae8226fa32afb3e
This commit is contained in:
parent
cfaee9f7c6
commit
244e2e1451
348
vp8/encoder/x86/variance_impl_ssse3.asm
Normal file
348
vp8/encoder/x86/variance_impl_ssse3.asm
Normal file
@ -0,0 +1,348 @@
|
||||
;
|
||||
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
;
|
||||
; Use of this source code is governed by a BSD-style license
|
||||
; that can be found in the LICENSE file in the root of the source
|
||||
; tree. An additional intellectual property rights grant can be found
|
||||
; in the file PATENTS. All contributing project authors may
|
||||
; be found in the AUTHORS file in the root of the source tree.
|
||||
;
|
||||
|
||||
|
||||
%include "vpx_ports/x86_abi_support.asm"
|
||||
|
||||
%define xmm_filter_shift 7
|
||||
|
||||
|
||||
;void vp8_filter_block2d_bil_var_ssse3
|
||||
;(
|
||||
; unsigned char *ref_ptr,
|
||||
; int ref_pixels_per_line,
|
||||
; unsigned char *src_ptr,
|
||||
; int src_pixels_per_line,
|
||||
; unsigned int Height,
|
||||
; int xoffset,
|
||||
; int yoffset,
|
||||
; int *sum,
|
||||
; unsigned int *sumsquared;;
|
||||
;
|
||||
;)
|
||||
;Note: The filter coefficient at offset=0 is 128. Since the second register
|
||||
;for Pmaddubsw is signed bytes, we must calculate zero offset seperately.
|
||||
global sym(vp8_filter_block2d_bil_var_ssse3)
|
||||
sym(vp8_filter_block2d_bil_var_ssse3):
|
||||
push rbp
|
||||
mov rbp, rsp
|
||||
SHADOW_ARGS_TO_STACK 9
|
||||
SAVE_XMM
|
||||
GET_GOT rbx
|
||||
push rsi
|
||||
push rdi
|
||||
push rbx
|
||||
; end prolog
|
||||
|
||||
pxor xmm6, xmm6
|
||||
pxor xmm7, xmm7
|
||||
|
||||
lea rcx, [GLOBAL(vp8_bilinear_filters_ssse3)]
|
||||
movsxd rax, dword ptr arg(5) ; xoffset
|
||||
|
||||
cmp rax, 0 ; skip first_pass filter if xoffset=0
|
||||
je filter_block2d_bil_var_ssse3_sp_only
|
||||
|
||||
shl rax, 4 ; point to filter coeff with xoffset
|
||||
lea rax, [rax + rcx] ; HFilter
|
||||
|
||||
movsxd rdx, dword ptr arg(6) ; yoffset
|
||||
|
||||
cmp rdx, 0 ; skip second_pass filter if yoffset=0
|
||||
je filter_block2d_bil_var_ssse3_fp_only
|
||||
|
||||
shl rdx, 4
|
||||
lea rdx, [rdx + rcx] ; VFilter
|
||||
|
||||
mov rsi, arg(0) ;ref_ptr
|
||||
mov rdi, arg(2) ;src_ptr
|
||||
movsxd rcx, dword ptr arg(4) ;Height
|
||||
|
||||
movdqu xmm0, XMMWORD PTR [rsi]
|
||||
movdqu xmm1, XMMWORD PTR [rsi+1]
|
||||
movdqa xmm2, xmm0
|
||||
|
||||
punpcklbw xmm0, xmm1
|
||||
punpckhbw xmm2, xmm1
|
||||
pmaddubsw xmm0, [rax]
|
||||
pmaddubsw xmm2, [rax]
|
||||
|
||||
paddw xmm0, [GLOBAL(xmm_bi_rd)]
|
||||
paddw xmm2, [GLOBAL(xmm_bi_rd)]
|
||||
psraw xmm0, xmm_filter_shift
|
||||
psraw xmm2, xmm_filter_shift
|
||||
|
||||
packuswb xmm0, xmm2
|
||||
|
||||
movsxd rbx, dword ptr arg(1) ;ref_pixels_per_line
|
||||
lea rsi, [rsi + rbx]
|
||||
%if ABI_IS_32BIT=0
|
||||
movsxd r9, dword ptr arg(3) ;src_pixels_per_line
|
||||
%endif
|
||||
|
||||
filter_block2d_bil_var_ssse3_loop:
|
||||
movdqu xmm1, XMMWORD PTR [rsi]
|
||||
movdqu xmm2, XMMWORD PTR [rsi+1]
|
||||
movdqa xmm3, xmm1
|
||||
|
||||
punpcklbw xmm1, xmm2
|
||||
punpckhbw xmm3, xmm2
|
||||
pmaddubsw xmm1, [rax]
|
||||
pmaddubsw xmm3, [rax]
|
||||
|
||||
paddw xmm1, [GLOBAL(xmm_bi_rd)]
|
||||
paddw xmm3, [GLOBAL(xmm_bi_rd)]
|
||||
psraw xmm1, xmm_filter_shift
|
||||
psraw xmm3, xmm_filter_shift
|
||||
packuswb xmm1, xmm3
|
||||
|
||||
movdqa xmm2, xmm0
|
||||
movdqa xmm0, xmm1
|
||||
movdqa xmm3, xmm2
|
||||
|
||||
punpcklbw xmm2, xmm1
|
||||
punpckhbw xmm3, xmm1
|
||||
pmaddubsw xmm2, [rdx]
|
||||
pmaddubsw xmm3, [rdx]
|
||||
|
||||
paddw xmm2, [GLOBAL(xmm_bi_rd)]
|
||||
paddw xmm3, [GLOBAL(xmm_bi_rd)]
|
||||
psraw xmm2, xmm_filter_shift
|
||||
psraw xmm3, xmm_filter_shift
|
||||
|
||||
movq xmm1, QWORD PTR [rdi]
|
||||
pxor xmm4, xmm4
|
||||
punpcklbw xmm1, xmm4
|
||||
movq xmm5, QWORD PTR [rdi+8]
|
||||
punpcklbw xmm5, xmm4
|
||||
|
||||
psubw xmm2, xmm1
|
||||
psubw xmm3, xmm5
|
||||
paddw xmm6, xmm2
|
||||
paddw xmm6, xmm3
|
||||
pmaddwd xmm2, xmm2
|
||||
pmaddwd xmm3, xmm3
|
||||
paddd xmm7, xmm2
|
||||
paddd xmm7, xmm3
|
||||
|
||||
lea rsi, [rsi + rbx] ;ref_pixels_per_line
|
||||
%if ABI_IS_32BIT
|
||||
add rdi, dword ptr arg(3) ;src_pixels_per_line
|
||||
%else
|
||||
lea rdi, [rdi + r9]
|
||||
%endif
|
||||
|
||||
sub rcx, 1
|
||||
jnz filter_block2d_bil_var_ssse3_loop
|
||||
|
||||
jmp filter_block2d_bil_variance
|
||||
|
||||
filter_block2d_bil_var_ssse3_sp_only:
|
||||
movsxd rdx, dword ptr arg(6) ; yoffset
|
||||
|
||||
cmp rdx, 0 ; Both xoffset =0 and yoffset=0
|
||||
je filter_block2d_bil_var_ssse3_full_pixel
|
||||
|
||||
shl rdx, 4
|
||||
lea rdx, [rdx + rcx] ; VFilter
|
||||
|
||||
mov rsi, arg(0) ;ref_ptr
|
||||
mov rdi, arg(2) ;src_ptr
|
||||
movsxd rcx, dword ptr arg(4) ;Height
|
||||
movsxd rax, dword ptr arg(1) ;ref_pixels_per_line
|
||||
|
||||
movdqu xmm1, XMMWORD PTR [rsi]
|
||||
movdqa xmm0, xmm1
|
||||
|
||||
movsxd rbx, dword ptr arg(3) ;src_pixels_per_line
|
||||
lea rsi, [rsi + rax]
|
||||
|
||||
filter_block2d_bil_sp_only_loop:
|
||||
movdqu xmm3, XMMWORD PTR [rsi]
|
||||
movdqa xmm2, xmm1
|
||||
movdqa xmm0, xmm3
|
||||
|
||||
punpcklbw xmm1, xmm3
|
||||
punpckhbw xmm2, xmm3
|
||||
pmaddubsw xmm1, [rdx]
|
||||
pmaddubsw xmm2, [rdx]
|
||||
|
||||
paddw xmm1, [GLOBAL(xmm_bi_rd)]
|
||||
paddw xmm2, [GLOBAL(xmm_bi_rd)]
|
||||
psraw xmm1, xmm_filter_shift
|
||||
psraw xmm2, xmm_filter_shift
|
||||
|
||||
movq xmm3, QWORD PTR [rdi]
|
||||
pxor xmm4, xmm4
|
||||
punpcklbw xmm3, xmm4
|
||||
movq xmm5, QWORD PTR [rdi+8]
|
||||
punpcklbw xmm5, xmm4
|
||||
|
||||
psubw xmm1, xmm3
|
||||
psubw xmm2, xmm5
|
||||
paddw xmm6, xmm1
|
||||
paddw xmm6, xmm2
|
||||
pmaddwd xmm1, xmm1
|
||||
pmaddwd xmm2, xmm2
|
||||
paddd xmm7, xmm1
|
||||
paddd xmm7, xmm2
|
||||
|
||||
movdqa xmm1, xmm0
|
||||
lea rsi, [rsi + rax] ;ref_pixels_per_line
|
||||
lea rdi, [rdi + rbx] ;src_pixels_per_line
|
||||
|
||||
sub rcx, 1
|
||||
jnz filter_block2d_bil_sp_only_loop
|
||||
|
||||
jmp filter_block2d_bil_variance
|
||||
|
||||
filter_block2d_bil_var_ssse3_full_pixel:
|
||||
mov rsi, arg(0) ;ref_ptr
|
||||
mov rdi, arg(2) ;src_ptr
|
||||
movsxd rcx, dword ptr arg(4) ;Height
|
||||
movsxd rax, dword ptr arg(1) ;ref_pixels_per_line
|
||||
movsxd rbx, dword ptr arg(3) ;src_pixels_per_line
|
||||
pxor xmm0, xmm0
|
||||
|
||||
filter_block2d_bil_full_pixel_loop:
|
||||
movq xmm1, QWORD PTR [rsi]
|
||||
punpcklbw xmm1, xmm0
|
||||
movq xmm2, QWORD PTR [rsi+8]
|
||||
punpcklbw xmm2, xmm0
|
||||
|
||||
movq xmm3, QWORD PTR [rdi]
|
||||
punpcklbw xmm3, xmm0
|
||||
movq xmm4, QWORD PTR [rdi+8]
|
||||
punpcklbw xmm4, xmm0
|
||||
|
||||
psubw xmm1, xmm3
|
||||
psubw xmm2, xmm4
|
||||
paddw xmm6, xmm1
|
||||
paddw xmm6, xmm2
|
||||
pmaddwd xmm1, xmm1
|
||||
pmaddwd xmm2, xmm2
|
||||
paddd xmm7, xmm1
|
||||
paddd xmm7, xmm2
|
||||
|
||||
lea rsi, [rsi + rax] ;ref_pixels_per_line
|
||||
lea rdi, [rdi + rbx] ;src_pixels_per_line
|
||||
sub rcx, 1
|
||||
jnz filter_block2d_bil_full_pixel_loop
|
||||
|
||||
jmp filter_block2d_bil_variance
|
||||
|
||||
filter_block2d_bil_var_ssse3_fp_only:
|
||||
mov rsi, arg(0) ;ref_ptr
|
||||
mov rdi, arg(2) ;src_ptr
|
||||
movsxd rcx, dword ptr arg(4) ;Height
|
||||
movsxd rdx, dword ptr arg(1) ;ref_pixels_per_line
|
||||
|
||||
pxor xmm0, xmm0
|
||||
movsxd rbx, dword ptr arg(3) ;src_pixels_per_line
|
||||
|
||||
filter_block2d_bil_fp_only_loop:
|
||||
movdqu xmm1, XMMWORD PTR [rsi]
|
||||
movdqu xmm2, XMMWORD PTR [rsi+1]
|
||||
movdqa xmm3, xmm1
|
||||
|
||||
punpcklbw xmm1, xmm2
|
||||
punpckhbw xmm3, xmm2
|
||||
pmaddubsw xmm1, [rax]
|
||||
pmaddubsw xmm3, [rax]
|
||||
|
||||
paddw xmm1, [GLOBAL(xmm_bi_rd)]
|
||||
paddw xmm3, [GLOBAL(xmm_bi_rd)]
|
||||
psraw xmm1, xmm_filter_shift
|
||||
psraw xmm3, xmm_filter_shift
|
||||
|
||||
movq xmm2, XMMWORD PTR [rdi]
|
||||
pxor xmm4, xmm4
|
||||
punpcklbw xmm2, xmm4
|
||||
movq xmm5, QWORD PTR [rdi+8]
|
||||
punpcklbw xmm5, xmm4
|
||||
|
||||
psubw xmm1, xmm2
|
||||
psubw xmm3, xmm5
|
||||
paddw xmm6, xmm1
|
||||
paddw xmm6, xmm3
|
||||
pmaddwd xmm1, xmm1
|
||||
pmaddwd xmm3, xmm3
|
||||
paddd xmm7, xmm1
|
||||
paddd xmm7, xmm3
|
||||
|
||||
lea rsi, [rsi + rdx]
|
||||
lea rdi, [rdi + rbx] ;src_pixels_per_line
|
||||
|
||||
sub rcx, 1
|
||||
jnz filter_block2d_bil_fp_only_loop
|
||||
|
||||
jmp filter_block2d_bil_variance
|
||||
|
||||
filter_block2d_bil_variance:
|
||||
pxor xmm0, xmm0
|
||||
pxor xmm1, xmm1
|
||||
pxor xmm5, xmm5
|
||||
|
||||
punpcklwd xmm0, xmm6
|
||||
punpckhwd xmm1, xmm6
|
||||
psrad xmm0, 16
|
||||
psrad xmm1, 16
|
||||
paddd xmm0, xmm1
|
||||
movdqa xmm1, xmm0
|
||||
|
||||
movdqa xmm6, xmm7
|
||||
punpckldq xmm6, xmm5
|
||||
punpckhdq xmm7, xmm5
|
||||
paddd xmm6, xmm7
|
||||
|
||||
punpckldq xmm0, xmm5
|
||||
punpckhdq xmm1, xmm5
|
||||
paddd xmm0, xmm1
|
||||
|
||||
movdqa xmm7, xmm6
|
||||
movdqa xmm1, xmm0
|
||||
|
||||
psrldq xmm7, 8
|
||||
psrldq xmm1, 8
|
||||
|
||||
paddd xmm6, xmm7
|
||||
paddd xmm0, xmm1
|
||||
|
||||
mov rsi, arg(7) ;[Sum]
|
||||
mov rdi, arg(8) ;[SSE]
|
||||
|
||||
movd [rsi], xmm0
|
||||
movd [rdi], xmm6
|
||||
|
||||
; begin epilog
|
||||
pop rbx
|
||||
pop rdi
|
||||
pop rsi
|
||||
RESTORE_GOT
|
||||
RESTORE_XMM
|
||||
UNSHADOW_ARGS
|
||||
pop rbp
|
||||
ret
|
||||
|
||||
|
||||
SECTION_RODATA
|
||||
align 16
|
||||
xmm_bi_rd:
|
||||
times 8 dw 64
|
||||
align 16
|
||||
vp8_bilinear_filters_ssse3:
|
||||
times 8 db 128, 0
|
||||
times 8 db 112, 16
|
||||
times 8 db 96, 32
|
||||
times 8 db 80, 48
|
||||
times 8 db 64, 64
|
||||
times 8 db 48, 80
|
||||
times 8 db 32, 96
|
||||
times 8 db 16, 112
|
140
vp8/encoder/x86/variance_ssse3.c
Normal file
140
vp8/encoder/x86/variance_ssse3.c
Normal file
@ -0,0 +1,140 @@
|
||||
/*
|
||||
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
|
||||
#include "vp8/encoder/variance.h"
|
||||
#include "vp8/common/pragmas.h"
|
||||
#include "vpx_ports/mem.h"
|
||||
|
||||
extern unsigned int vp8_get16x16var_sse2
|
||||
(
|
||||
const unsigned char *src_ptr,
|
||||
int source_stride,
|
||||
const unsigned char *ref_ptr,
|
||||
int recon_stride,
|
||||
unsigned int *SSE,
|
||||
int *Sum
|
||||
);
|
||||
extern void vp8_half_horiz_vert_variance16x_h_sse2
|
||||
(
|
||||
const unsigned char *ref_ptr,
|
||||
int ref_pixels_per_line,
|
||||
const unsigned char *src_ptr,
|
||||
int src_pixels_per_line,
|
||||
unsigned int Height,
|
||||
int *sum,
|
||||
unsigned int *sumsquared
|
||||
);
|
||||
extern void vp8_half_horiz_variance16x_h_sse2
|
||||
(
|
||||
const unsigned char *ref_ptr,
|
||||
int ref_pixels_per_line,
|
||||
const unsigned char *src_ptr,
|
||||
int src_pixels_per_line,
|
||||
unsigned int Height,
|
||||
int *sum,
|
||||
unsigned int *sumsquared
|
||||
);
|
||||
extern void vp8_half_vert_variance16x_h_sse2
|
||||
(
|
||||
const unsigned char *ref_ptr,
|
||||
int ref_pixels_per_line,
|
||||
const unsigned char *src_ptr,
|
||||
int src_pixels_per_line,
|
||||
unsigned int Height,
|
||||
int *sum,
|
||||
unsigned int *sumsquared
|
||||
);
|
||||
extern void vp8_filter_block2d_bil_var_ssse3
|
||||
(
|
||||
const unsigned char *ref_ptr,
|
||||
int ref_pixels_per_line,
|
||||
const unsigned char *src_ptr,
|
||||
int src_pixels_per_line,
|
||||
unsigned int Height,
|
||||
int xoffset,
|
||||
int yoffset,
|
||||
int *sum,
|
||||
unsigned int *sumsquared
|
||||
);
|
||||
|
||||
unsigned int vp8_sub_pixel_variance16x16_ssse3
|
||||
(
|
||||
const unsigned char *src_ptr,
|
||||
int src_pixels_per_line,
|
||||
int xoffset,
|
||||
int yoffset,
|
||||
const unsigned char *dst_ptr,
|
||||
int dst_pixels_per_line,
|
||||
unsigned int *sse
|
||||
)
|
||||
{
|
||||
int xsum0, xsum1;
|
||||
unsigned int xxsum0, xxsum1;
|
||||
|
||||
// note we could avoid these if statements if the calling function
|
||||
// just called the appropriate functions inside.
|
||||
if (xoffset == 4 && yoffset == 0)
|
||||
{
|
||||
vp8_half_horiz_variance16x_h_sse2(
|
||||
src_ptr, src_pixels_per_line,
|
||||
dst_ptr, dst_pixels_per_line, 16,
|
||||
&xsum0, &xxsum0);
|
||||
|
||||
vp8_half_horiz_variance16x_h_sse2(
|
||||
src_ptr + 8, src_pixels_per_line,
|
||||
dst_ptr + 8, dst_pixels_per_line, 16,
|
||||
&xsum1, &xxsum1);
|
||||
|
||||
xsum0 += xsum1;
|
||||
xxsum0 += xxsum1;
|
||||
}
|
||||
else if (xoffset == 0 && yoffset == 4)
|
||||
{
|
||||
vp8_half_vert_variance16x_h_sse2(
|
||||
src_ptr, src_pixels_per_line,
|
||||
dst_ptr, dst_pixels_per_line, 16,
|
||||
&xsum0, &xxsum0);
|
||||
|
||||
vp8_half_vert_variance16x_h_sse2(
|
||||
src_ptr + 8, src_pixels_per_line,
|
||||
dst_ptr + 8, dst_pixels_per_line, 16,
|
||||
&xsum1, &xxsum1);
|
||||
|
||||
xsum0 += xsum1;
|
||||
xxsum0 += xxsum1;
|
||||
}
|
||||
else if (xoffset == 4 && yoffset == 4)
|
||||
{
|
||||
vp8_half_horiz_vert_variance16x_h_sse2(
|
||||
src_ptr, src_pixels_per_line,
|
||||
dst_ptr, dst_pixels_per_line, 16,
|
||||
&xsum0, &xxsum0);
|
||||
|
||||
vp8_half_horiz_vert_variance16x_h_sse2(
|
||||
src_ptr + 8, src_pixels_per_line,
|
||||
dst_ptr + 8, dst_pixels_per_line, 16,
|
||||
&xsum1, &xxsum1);
|
||||
|
||||
xsum0 += xsum1;
|
||||
xxsum0 += xxsum1;
|
||||
}
|
||||
else
|
||||
{
|
||||
vp8_filter_block2d_bil_var_ssse3(
|
||||
src_ptr, src_pixels_per_line,
|
||||
dst_ptr, dst_pixels_per_line, 16,
|
||||
xoffset, yoffset,
|
||||
&xsum0, &xxsum0);
|
||||
}
|
||||
|
||||
*sse = xxsum0;
|
||||
return (xxsum0 - ((xsum0 * xsum0) >> 8));
|
||||
}
|
@ -286,6 +286,7 @@ extern prototype_sad_multi_dif_address(vp8_sad4x4x4d_sse3);
|
||||
#if HAVE_SSSE3
|
||||
extern prototype_sad_multi_same_address(vp8_sad16x16x3_ssse3);
|
||||
extern prototype_sad_multi_same_address(vp8_sad16x8x3_ssse3);
|
||||
extern prototype_subpixvariance(vp8_sub_pixel_variance16x16_ssse3);
|
||||
|
||||
#if !CONFIG_RUNTIME_CPU_DETECT
|
||||
#undef vp8_variance_sad16x16x3
|
||||
@ -294,6 +295,9 @@ extern prototype_sad_multi_same_address(vp8_sad16x8x3_ssse3);
|
||||
#undef vp8_variance_sad16x8x3
|
||||
#define vp8_variance_sad16x8x3 vp8_sad16x8x3_ssse3
|
||||
|
||||
#undef vp8_variance_subpixvar16x16
|
||||
#define vp8_variance_subpixvar16x16 vp8_sub_pixel_variance16x16_ssse3
|
||||
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
@ -334,6 +334,8 @@ void vp8_arch_x86_encoder_init(VP8_COMP *cpi)
|
||||
cpi->rtcd.variance.sad16x16x3 = vp8_sad16x16x3_ssse3;
|
||||
cpi->rtcd.variance.sad16x8x3 = vp8_sad16x8x3_ssse3;
|
||||
|
||||
cpi->rtcd.variance.subpixvar16x16 = vp8_sub_pixel_variance16x16_ssse3;
|
||||
|
||||
cpi->rtcd.quantize.fastquantb = vp8_fast_quantize_b_ssse3;
|
||||
|
||||
}
|
||||
|
@ -110,6 +110,8 @@ VP8_CX_SRCS-$(HAVE_SSE2) += encoder/x86/subtract_sse2.asm
|
||||
VP8_CX_SRCS-$(HAVE_SSE2) += encoder/x86/temporal_filter_apply_sse2.asm
|
||||
VP8_CX_SRCS-$(HAVE_SSE3) += encoder/x86/sad_sse3.asm
|
||||
VP8_CX_SRCS-$(HAVE_SSSE3) += encoder/x86/sad_ssse3.asm
|
||||
VP8_CX_SRCS-$(HAVE_SSSE3) += encoder/x86/variance_ssse3.c
|
||||
VP8_CX_SRCS-$(HAVE_SSSE3) += encoder/x86/variance_impl_ssse3.asm
|
||||
VP8_CX_SRCS-$(HAVE_SSSE3) += encoder/x86/quantize_ssse3.asm
|
||||
VP8_CX_SRCS-$(HAVE_SSE4_1) += encoder/x86/sad_sse4.asm
|
||||
VP8_CX_SRCS-$(ARCH_X86)$(ARCH_X86_64) += encoder/x86/quantize_mmx.asm
|
||||
|
Loading…
x
Reference in New Issue
Block a user