	.section	__TEXT,__text,regular,pure_instructions
	.build_version macos, 13, 0	sdk_version 13, 3
	.p2align	4, 0x90                         ## -- Begin function vaapi_frames_get_constraints
_vaapi_frames_get_constraints:          ## @vaapi_frames_get_constraints
	.cfi_startproc
## %bb.0:
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register %rbp
	pushq	%r15
	pushq	%r14
	pushq	%r13
	pushq	%r12
	pushq	%rbx
	subq	$24, %rsp
	.cfi_offset %rbx, -56
	.cfi_offset %r12, -48
	.cfi_offset %r13, -40
	.cfi_offset %r14, -32
	.cfi_offset %r15, -24
	movq	%rdx, %r15
	movq	(%rdi), %rax
	movq	8(%rdi), %r14
	movq	(%rax), %rbx
	movq	$0, -64(%rbp)
	testq	%rsi, %rsi
	je	LBB0_30
## %bb.1:
	movq	_AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES@GOTPCREL(%rip), %rax
	movl	(%rax), %eax
	testl	%eax, (%r14)
	je	LBB0_2
LBB0_30:
	movl	(%rbx), %edi
	incl	%edi
	movl	$4, %esi
	callq	_av_malloc_array
	movq	%rax, 16(%r15)
	testq	%rax, %rax
	je	LBB0_6
## %bb.31:
	cmpl	$0, (%rbx)
	jle	LBB0_32
## %bb.33:
	movq	8(%rbx), %rdx
	xorl	%ecx, %ecx
	.p2align	4, 0x90
LBB0_34:                                ## =>This Inner Loop Header: Depth=1
	movl	(%rdx,%rcx,4), %esi
	movl	%esi, (%rax,%rcx,4)
	incq	%rcx
	movslq	(%rbx), %rsi
	cmpq	%rsi, %rcx
	jl	LBB0_34
	jmp	LBB0_35
LBB0_2:
	movq	%rsi, %r13
	movq	%rdi, %r12
	movq	%r15, -56(%rbp)                 ## 8-byte Spill
	movl	$0, -44(%rbp)
	movl	4(%r14), %edi
	movl	(%rsi), %esi
	leaq	-44(%rbp), %rcx
	xorl	%edx, %edx
	callq	_vaQuerySurfaceAttributes
	movq	_VA_STATUS_SUCCESS@GOTPCREL(%rip), %rbx
	cmpq	(%rbx), %rax
	jne	LBB0_3
## %bb.5:
	movl	-44(%rbp), %edi
	shll	$3, %edi
	callq	_av_malloc
	movq	%rax, -64(%rbp)
	testq	%rax, %rax
	je	LBB0_6
## %bb.8:
	movq	%rax, %r15
	movl	4(%r14), %edi
	movl	(%r13), %esi
	leaq	-44(%rbp), %rcx
	movq	%rax, %rdx
	callq	_vaQuerySurfaceAttributes
	movq	%rbx, %rcx
	cmpq	(%rbx), %rax
	jne	LBB0_39
## %bb.9:
	movl	-44(%rbp), %eax
	testl	%eax, %eax
	jle	LBB0_20
## %bb.10:
	xorl	%ebx, %ebx
	leaq	LJTI0_0(%rip), %r12
	movq	_AV_PIX_FMT_NONE@GOTPCREL(%rip), %r14
	xorl	%r13d, %r13d
	jmp	LBB0_11
LBB0_32:
	xorl	%ecx, %ecx
LBB0_35:
	movq	_AV_PIX_FMT_NONE@GOTPCREL(%rip), %rdx
	movl	(%rdx), %edx
	movl	%edx, (%rax,%rcx,4)
LBB0_36:
	movl	$2, %edi
	movl	$4, %esi
	callq	_av_malloc_array
	movq	%rax, 24(%r15)
	testq	%rax, %rax
	je	LBB0_6
## %bb.37:
	movq	_AV_PIX_FMT_VAAPI@GOTPCREL(%rip), %rcx
	movl	(%rcx), %ecx
	movl	%ecx, (%rax)
	movq	_AV_PIX_FMT_NONE@GOTPCREL(%rip), %rcx
	movl	(%rcx), %ecx
	movl	%ecx, 4(%rax)
	xorl	%ebx, %ebx
	jmp	LBB0_38
LBB0_17:                                ##   in Loop: Header=BB0_11 Depth=1
	movl	4(%r15,%rbx,8), %ecx
	movq	-56(%rbp), %rdx                 ## 8-byte Reload
	movl	%ecx, 12(%rdx)
	.p2align	4, 0x90
LBB0_18:                                ##   in Loop: Header=BB0_11 Depth=1
	incq	%rbx
	movslq	%eax, %rcx
	cmpq	%rcx, %rbx
	jge	LBB0_19
LBB0_11:                                ## =>This Inner Loop Header: Depth=1
	movl	(%r15,%rbx,8), %ecx
	addl	$-128, %ecx
	cmpl	$4, %ecx
	ja	LBB0_18
## %bb.12:                              ##   in Loop: Header=BB0_11 Depth=1
	movslq	(%r12,%rcx,4), %rcx
	addq	%r12, %rcx
	jmpq	*%rcx
LBB0_13:                                ##   in Loop: Header=BB0_11 Depth=1
	movl	4(%r15,%rbx,8), %edi
	callq	_vaapi_pix_fmt_from_fourcc
	xorl	%ecx, %ecx
	cmpl	(%r14), %eax
	setne	%cl
	addl	%ecx, %r13d
	movl	-44(%rbp), %eax
	jmp	LBB0_18
LBB0_14:                                ##   in Loop: Header=BB0_11 Depth=1
	movl	4(%r15,%rbx,8), %ecx
	movq	-56(%rbp), %rdx                 ## 8-byte Reload
	movl	%ecx, (%rdx)
	jmp	LBB0_18
LBB0_15:                                ##   in Loop: Header=BB0_11 Depth=1
	movl	4(%r15,%rbx,8), %ecx
	movq	-56(%rbp), %rdx                 ## 8-byte Reload
	movl	%ecx, 4(%rdx)
	jmp	LBB0_18
LBB0_16:                                ##   in Loop: Header=BB0_11 Depth=1
	movl	4(%r15,%rbx,8), %ecx
	movq	-56(%rbp), %rdx                 ## 8-byte Reload
	movl	%ecx, 8(%rdx)
	jmp	LBB0_18
LBB0_3:
	movq	%rax, %r15
	movq	_AV_LOG_ERROR@GOTPCREL(%rip), %rax
	movl	(%rax), %ebx
	movq	%r15, %rdi
	callq	_vaErrorStr
	leaq	L_.str(%rip), %rdx
	movq	%r12, %rdi
	movl	%ebx, %esi
	movq	%r15, %rcx
	jmp	LBB0_4
LBB0_39:
	movq	%rax, %rbx
	movq	_AV_LOG_ERROR@GOTPCREL(%rip), %rax
	movl	(%rax), %r14d
	movq	%rbx, %rdi
	callq	_vaErrorStr
	leaq	L_.str(%rip), %rdx
	movq	%r12, %rdi
	movl	%r14d, %esi
	movq	%rbx, %rcx
LBB0_4:
	movl	%eax, %r8d
	callq	_av_log
	movq	_ENOSYS@GOTPCREL(%rip), %rax
	jmp	LBB0_7
LBB0_19:
	testl	%r13d, %r13d
	je	LBB0_20
## %bb.21:
	leal	1(%r13), %edi
	movl	$4, %esi
	callq	_av_malloc_array
	movq	-56(%rbp), %rcx                 ## 8-byte Reload
	movq	%rax, 16(%rcx)
	testq	%rax, %rax
	je	LBB0_6
## %bb.22:
	movq	%r14, %r12
	cmpl	$0, -44(%rbp)
	jle	LBB0_23
## %bb.24:
	xorl	%ebx, %ebx
	xorl	%r14d, %r14d
	jmp	LBB0_25
LBB0_6:
	movq	_ENOMEM@GOTPCREL(%rip), %rax
LBB0_7:
	movl	(%rax), %edi
	callq	_AVERROR
	movl	%eax, %ebx
LBB0_38:
	leaq	-64(%rbp), %rdi
	callq	_av_freep
	movl	%ebx, %eax
	addq	$24, %rsp
	popq	%rbx
	popq	%r12
	popq	%r13
	popq	%r14
	popq	%r15
	popq	%rbp
	retq
LBB0_28:                                ##   in Loop: Header=BB0_25 Depth=1
	incq	%rbx
	movslq	-44(%rbp), %rax
	cmpq	%rax, %rbx
	jge	LBB0_29
LBB0_25:                                ## =>This Inner Loop Header: Depth=1
	cmpl	$128, (%r15,%rbx,8)
	jne	LBB0_28
## %bb.26:                              ##   in Loop: Header=BB0_25 Depth=1
	movl	4(%r15,%rbx,8), %edi
	callq	_vaapi_pix_fmt_from_fourcc
	cmpl	(%r12), %eax
	je	LBB0_28
## %bb.27:                              ##   in Loop: Header=BB0_25 Depth=1
	movq	-56(%rbp), %rcx                 ## 8-byte Reload
	movq	16(%rcx), %rcx
	movslq	%r14d, %rdx
	incl	%r14d
	movl	%eax, (%rcx,%rdx,4)
	jmp	LBB0_28
LBB0_20:
	movq	-56(%rbp), %r15                 ## 8-byte Reload
	movq	$0, 16(%r15)
	jmp	LBB0_36
LBB0_23:
	xorl	%r14d, %r14d
LBB0_29:
	xorl	%edi, %edi
	cmpl	%r13d, %r14d
	sete	%dil
	callq	_av_assert0
	movl	(%r12), %eax
	movq	-56(%rbp), %r15                 ## 8-byte Reload
	movq	16(%r15), %rcx
	movslq	%r14d, %rdx
	movl	%eax, (%rcx,%rdx,4)
	jmp	LBB0_36
	.cfi_endproc
	.p2align	2, 0x90
	.data_region jt32
.set L0_0_set_13, LBB0_13-LJTI0_0
.set L0_0_set_14, LBB0_14-LJTI0_0
.set L0_0_set_15, LBB0_15-LJTI0_0
.set L0_0_set_16, LBB0_16-LJTI0_0
.set L0_0_set_17, LBB0_17-LJTI0_0
LJTI0_0:
	.long	L0_0_set_13
	.long	L0_0_set_14
	.long	L0_0_set_15
	.long	L0_0_set_16
	.long	L0_0_set_17
	.end_data_region
                                        ## -- End function
	.comm	_AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES,4,2 ## @AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES
	.comm	_VA_STATUS_SUCCESS,8,3          ## @VA_STATUS_SUCCESS
	.comm	_AV_LOG_ERROR,4,2               ## @AV_LOG_ERROR
	.section	__TEXT,__cstring,cstring_literals
L_.str:                                 ## @.str
	.asciz	"Failed to query surface attributes: %d (%s).\n"

	.comm	_ENOSYS,4,2                     ## @ENOSYS
	.comm	_ENOMEM,4,2                     ## @ENOMEM
	.comm	_AV_PIX_FMT_NONE,4,2            ## @AV_PIX_FMT_NONE
	.comm	_AV_PIX_FMT_VAAPI,4,2           ## @AV_PIX_FMT_VAAPI
	.no_dead_strip	_vaapi_frames_get_constraints
.subsections_via_symbols

	.section	__TEXT,__text,regular,pure_instructions
	.build_version macos, 13, 0	sdk_version 13, 3
	.p2align	2                               ; -- Begin function vaapi_frames_get_constraints
_vaapi_frames_get_constraints:          ; @vaapi_frames_get_constraints
	.cfi_startproc
; %bb.0:
	sub	sp, sp, #96
	.cfi_def_cfa_offset 96
	stp	x26, x25, [sp, #16]             ; 16-byte Folded Spill
	stp	x24, x23, [sp, #32]             ; 16-byte Folded Spill
	stp	x22, x21, [sp, #48]             ; 16-byte Folded Spill
	stp	x20, x19, [sp, #64]             ; 16-byte Folded Spill
	stp	x29, x30, [sp, #80]             ; 16-byte Folded Spill
	add	x29, sp, #80
	.cfi_def_cfa w29, 16
	.cfi_offset w30, -8
	.cfi_offset w29, -16
	.cfi_offset w19, -24
	.cfi_offset w20, -32
	.cfi_offset w21, -40
	.cfi_offset w22, -48
	.cfi_offset w23, -56
	.cfi_offset w24, -64
	.cfi_offset w25, -72
	.cfi_offset w26, -80
	mov	x19, x2
	ldp	x8, x23, [x0]
	ldr	x20, [x8]
	str	xzr, [sp, #8]
	cbz	x1, LBB0_2
; %bb.1:
	ldr	w8, [x23]
Lloh0:
	adrp	x9, _AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES@GOTPAGE
Lloh1:
	ldr	x9, [x9, _AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES@GOTPAGEOFF]
Lloh2:
	ldr	w9, [x9]
	tst	w9, w8
	b.eq	LBB0_6
LBB0_2:
	ldr	w8, [x20]
	add	w0, w8, #1
	mov	w1, #4
	bl	_av_malloc_array
	str	x0, [x19, #16]
	cbz	x0, LBB0_30
; %bb.3:
	ldr	w8, [x20]
	cmp	w8, #1
	b.lt	LBB0_11
; %bb.4:
	mov	x8, #0
	ldr	x9, [x20, #8]
LBB0_5:                                 ; =>This Inner Loop Header: Depth=1
	lsl	x10, x8, #2
	ldr	w11, [x9, x10]
	str	w11, [x0, x10]
	add	x8, x8, #1
	ldrsw	x10, [x20]
	cmp	x8, x10
	b.lt	LBB0_5
	b	LBB0_12
LBB0_6:
	mov	x22, x1
	mov	x21, x0
	str	wzr, [sp, #4]
	ldr	w0, [x23, #4]
	ldr	w1, [x1]
	add	x3, sp, #4
	mov	x2, #0
	bl	_vaQuerySurfaceAttributes
Lloh3:
	adrp	x24, _VA_STATUS_SUCCESS@GOTPAGE
Lloh4:
	ldr	x24, [x24, _VA_STATUS_SUCCESS@GOTPAGEOFF]
	ldr	x8, [x24]
	cmp	x0, x8
	b.ne	LBB0_23
; %bb.7:
	ldr	w8, [sp, #4]
	lsl	w0, w8, #3
	bl	_av_malloc
	str	x0, [sp, #8]
	cbz	x0, LBB0_30
; %bb.8:
	mov	x20, x0
	ldr	w0, [x23, #4]
	ldr	w1, [x22]
	add	x3, sp, #4
	mov	x2, x20
	bl	_vaQuerySurfaceAttributes
	ldr	x8, [x24]
	cmp	x0, x8
	b.ne	LBB0_24
; %bb.9:
	ldr	w8, [sp, #4]
	cmp	w8, #1
	b.lt	LBB0_37
; %bb.10:
	mov	x23, #0
	mov	w21, #0
	add	x24, x20, #4
Lloh5:
	adrp	x22, _AV_PIX_FMT_NONE@GOTPAGE
Lloh6:
	ldr	x22, [x22, _AV_PIX_FMT_NONE@GOTPAGEOFF]
Lloh7:
	adrp	x25, lJTI0_0@PAGE
Lloh8:
	add	x25, x25, lJTI0_0@PAGEOFF
	b	LBB0_17
LBB0_11:
	mov	x8, #0
LBB0_12:
Lloh9:
	adrp	x9, _AV_PIX_FMT_NONE@GOTPAGE
Lloh10:
	ldr	x9, [x9, _AV_PIX_FMT_NONE@GOTPAGEOFF]
Lloh11:
	ldr	w9, [x9]
	str	w9, [x0, x8, lsl #2]
LBB0_13:
	mov	w0, #2
	mov	w1, #4
	bl	_av_malloc_array
	str	x0, [x19, #24]
	cbz	x0, LBB0_30
; %bb.14:
	mov	w19, #0
Lloh12:
	adrp	x8, _AV_PIX_FMT_VAAPI@GOTPAGE
Lloh13:
	ldr	x8, [x8, _AV_PIX_FMT_VAAPI@GOTPAGEOFF]
Lloh14:
	ldr	w8, [x8]
	str	w8, [x0]
Lloh15:
	adrp	x8, _AV_PIX_FMT_NONE@GOTPAGE
Lloh16:
	ldr	x8, [x8, _AV_PIX_FMT_NONE@GOTPAGEOFF]
Lloh17:
	ldr	w8, [x8]
	str	w8, [x0, #4]
	b	LBB0_32
LBB0_15:                                ;   in Loop: Header=BB0_17 Depth=1
	ldr	w9, [x24]
	str	w9, [x19, #12]
LBB0_16:                                ;   in Loop: Header=BB0_17 Depth=1
	add	x23, x23, #1
	add	x24, x24, #8
	cmp	x23, w8, sxtw
	b.ge	LBB0_26
LBB0_17:                                ; =>This Inner Loop Header: Depth=1
	ldur	w9, [x24, #-4]
	sub	w9, w9, #128
	cmp	w9, #4
	b.hi	LBB0_16
; %bb.18:                               ;   in Loop: Header=BB0_17 Depth=1
	adr	x10, LBB0_15
	ldrb	w11, [x25, x9]
	add	x10, x10, x11, lsl #2
	br	x10
LBB0_19:                                ;   in Loop: Header=BB0_17 Depth=1
	ldr	w0, [x24]
	bl	_vaapi_pix_fmt_from_fourcc
	ldr	w8, [x22]
	cmp	w0, w8
	cinc	w21, w21, ne
	ldr	w8, [sp, #4]
	b	LBB0_16
LBB0_20:                                ;   in Loop: Header=BB0_17 Depth=1
	ldr	w9, [x24]
	str	w9, [x19]
	b	LBB0_16
LBB0_21:                                ;   in Loop: Header=BB0_17 Depth=1
	ldr	w9, [x24]
	str	w9, [x19, #4]
	b	LBB0_16
LBB0_22:                                ;   in Loop: Header=BB0_17 Depth=1
	ldr	w9, [x24]
	str	w9, [x19, #8]
	b	LBB0_16
LBB0_23:
	mov	x20, x0
Lloh18:
	adrp	x8, _AV_LOG_ERROR@GOTPAGE
Lloh19:
	ldr	x8, [x8, _AV_LOG_ERROR@GOTPAGEOFF]
Lloh20:
	ldr	w19, [x8]
	bl	_vaErrorStr
	mov	x4, x0
Lloh21:
	adrp	x2, l_.str@PAGE
Lloh22:
	add	x2, x2, l_.str@PAGEOFF
	mov	x0, x21
	mov	x1, x19
	mov	x3, x20
	b	LBB0_25
LBB0_24:
	mov	x22, x0
Lloh23:
	adrp	x8, _AV_LOG_ERROR@GOTPAGE
Lloh24:
	ldr	x8, [x8, _AV_LOG_ERROR@GOTPAGEOFF]
Lloh25:
	ldr	w19, [x8]
	bl	_vaErrorStr
	mov	x4, x0
Lloh26:
	adrp	x2, l_.str@PAGE
Lloh27:
	add	x2, x2, l_.str@PAGEOFF
	mov	x0, x21
	mov	x1, x19
	mov	x3, x22
LBB0_25:
	bl	_av_log
Lloh28:
	adrp	x8, _ENOSYS@GOTPAGE
Lloh29:
	ldr	x8, [x8, _ENOSYS@GOTPAGEOFF]
	b	LBB0_31
LBB0_26:
	cbz	w21, LBB0_37
; %bb.27:
	add	w0, w21, #1
	mov	w1, #4
	bl	_av_malloc_array
	str	x0, [x19, #16]
	cbz	x0, LBB0_30
; %bb.28:
	ldr	w8, [sp, #4]
	cmp	w8, #1
	b.lt	LBB0_38
; %bb.29:
	mov	x24, #0
	mov	w23, #0
	add	x20, x20, #4
	b	LBB0_34
LBB0_30:
Lloh30:
	adrp	x8, _ENOMEM@GOTPAGE
Lloh31:
	ldr	x8, [x8, _ENOMEM@GOTPAGEOFF]
LBB0_31:
	ldr	w0, [x8]
	bl	_AVERROR
	mov	x19, x0
LBB0_32:
	add	x0, sp, #8
	bl	_av_freep
	mov	x0, x19
	ldp	x29, x30, [sp, #80]             ; 16-byte Folded Reload
	ldp	x20, x19, [sp, #64]             ; 16-byte Folded Reload
	ldp	x22, x21, [sp, #48]             ; 16-byte Folded Reload
	ldp	x24, x23, [sp, #32]             ; 16-byte Folded Reload
	ldp	x26, x25, [sp, #16]             ; 16-byte Folded Reload
	add	sp, sp, #96
	ret
LBB0_33:                                ;   in Loop: Header=BB0_34 Depth=1
	add	x24, x24, #1
	ldrsw	x8, [sp, #4]
	add	x20, x20, #8
	cmp	x24, x8
	b.ge	LBB0_39
LBB0_34:                                ; =>This Inner Loop Header: Depth=1
	ldur	w8, [x20, #-4]
	cmp	w8, #128
	b.ne	LBB0_33
; %bb.35:                               ;   in Loop: Header=BB0_34 Depth=1
	ldr	w0, [x20]
	bl	_vaapi_pix_fmt_from_fourcc
	ldr	w8, [x22]
	cmp	w0, w8
	b.eq	LBB0_33
; %bb.36:                               ;   in Loop: Header=BB0_34 Depth=1
	ldr	x8, [x19, #16]
	str	w0, [x8, w23, sxtw #2]
	add	w23, w23, #1
	b	LBB0_33
LBB0_37:
	str	xzr, [x19, #16]
	b	LBB0_13
LBB0_38:
	mov	w23, #0
LBB0_39:
	cmp	w23, w21
	cset	w0, eq
	bl	_av_assert0
	ldr	w8, [x22]
	ldr	x9, [x19, #16]
	str	w8, [x9, w23, sxtw #2]
	b	LBB0_13
	.loh AdrpLdrGotLdr	Lloh0, Lloh1, Lloh2
	.loh AdrpLdrGot	Lloh3, Lloh4
	.loh AdrpAdd	Lloh7, Lloh8
	.loh AdrpLdrGot	Lloh5, Lloh6
	.loh AdrpLdrGotLdr	Lloh9, Lloh10, Lloh11
	.loh AdrpLdrGotLdr	Lloh15, Lloh16, Lloh17
	.loh AdrpLdrGotLdr	Lloh12, Lloh13, Lloh14
	.loh AdrpAdd	Lloh21, Lloh22
	.loh AdrpLdrGotLdr	Lloh18, Lloh19, Lloh20
	.loh AdrpAdd	Lloh26, Lloh27
	.loh AdrpLdrGotLdr	Lloh23, Lloh24, Lloh25
	.loh AdrpLdrGot	Lloh28, Lloh29
	.loh AdrpLdrGot	Lloh30, Lloh31
	.cfi_endproc
	.section	__TEXT,__const
lJTI0_0:
	.byte	(LBB0_19-LBB0_15)>>2
	.byte	(LBB0_20-LBB0_15)>>2
	.byte	(LBB0_21-LBB0_15)>>2
	.byte	(LBB0_22-LBB0_15)>>2
	.byte	(LBB0_15-LBB0_15)>>2
                                        ; -- End function
	.comm	_AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES,4,2 ; @AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES
	.comm	_VA_STATUS_SUCCESS,8,3          ; @VA_STATUS_SUCCESS
	.comm	_AV_LOG_ERROR,4,2               ; @AV_LOG_ERROR
	.section	__TEXT,__cstring,cstring_literals
l_.str:                                 ; @.str
	.asciz	"Failed to query surface attributes: %d (%s).\n"

	.comm	_ENOSYS,4,2                     ; @ENOSYS
	.comm	_ENOMEM,4,2                     ; @ENOMEM
	.comm	_AV_PIX_FMT_NONE,4,2            ; @AV_PIX_FMT_NONE
	.comm	_AV_PIX_FMT_VAAPI,4,2           ; @AV_PIX_FMT_VAAPI
	.no_dead_strip	_vaapi_frames_get_constraints
.subsections_via_symbols
