ad_hwac3.mid

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· MID 代码 · 共 1,372 行 · 第 1/2 页

	.file	1 "ad_hwac3.c"
	.section .mdebug.abi32
	.previous
	.section	.text.func_table,"ax",@progbits
	.align	2
	.align	5
	.globl	func_table
	.ent	func_table
	.type	func_table, @function
func_table:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lui	$2,%hi(mpcodecs_ad_hwac3)
	j	$31
	addiu	$2,$2,%lo(mpcodecs_ad_hwac3)

	.set	macro
	.set	reorder
	.end	func_table
	.section	.text.preinit,"ax",@progbits
	.align	2
	.align	5
	.ent	preinit
	.type	preinit, @function
preinit:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	li	$2,256			# 0x100
	sw	$2,24($4)
	li	$2,8192			# 0x2000
	li	$5,2			# 0x2
	li	$3,16384			# 0x4000
	sw	$2,48($4)
	li	$2,1			# 0x1
	sw	$3,64($4)
	sw	$5,32($4)
	j	$31
	sw	$5,36($4)

	.set	macro
	.set	reorder
	.end	preinit
	.section	.text.uninit,"ax",@progbits
	.align	2
	.align	5
	.ent	uninit
	.type	uninit, @function
uninit:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	j	$31
	nop

	.set	macro
	.set	reorder
	.end	uninit
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"DTS: Termination frames not handled, REPORT BUG\012\000"
	.align	2
$LC1:
	.ascii	"DTS: Only 48kHz supported, REPORT BUG\012\000"
	.align	2
$LC2:
	.ascii	"DTS: fsize: %d invalid, REPORT BUG\012\000"
	.align	2
$LC3:
	.ascii	"DTS: nblks %d not valid for normal frame, REPORT BUG\012"
	.ascii	"\000"
	.section	.text.dts_decode_header,"ax",@progbits
	.align	2
	.align	5
	.ent	dts_decode_header
	.type	dts_decode_header, @function
dts_decode_header:
	.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
	.mask	0x80000000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$31,16($sp)
	lbu	$2,0($4)
	lbu	$3,1($4)
	move	$9,$4
	sll	$2,$2,24
	sll	$3,$3,16
	lbu	$4,2($4)
	lbu	$8,3($9)
	or	$2,$2,$3
	or	$2,$2,$8
	sll	$4,$4,8
	or	$4,$4,$2
	li	$2,2147352576			# 0x7ffe0000
	ori	$2,$2,0x8001
	beq	$4,$2,$L25
	li	$3,-1			# 0xffffffffffffffff

$L10:
	lw	$31,16($sp)
$L29:
	move	$2,$3
	j	$31
	addiu	$sp,$sp,24

$L25:
	lbu	$4,4($9)
	lbu	$3,5($9)
	andi	$2,$4,0x1
	srl	$3,$3,2
	sll	$2,$2,6
	or	$2,$2,$3
	addiu	$2,$2,1
	sw	$2,0($6)
	lbu	$3,8($9)
	lbu	$11,5($9)
	srl	$3,$3,2
	andi	$3,$3,0xf
	lbu	$10,6($9)
	lbu	$8,7($9)
	sw	$3,0($7)
	lbu	$2,8($9)
	lbu	$3,9($9)
	andi	$2,$2,0x3
	srl	$3,$3,5
	sll	$2,$2,3
	or	$2,$2,$3
	srl	$4,$4,7
	li	$3,1			# 0x1
	bne	$4,$3,$L26
	sw	$2,0($5)

	lw	$3,0($7)
	li	$2,13			# 0xd
	bne	$3,$2,$L27
	srl	$2,$8,4

	andi	$4,$11,0x3
	sll	$3,$10,4
	or	$3,$3,$2
	sll	$4,$4,12
	or	$4,$4,$3
	addiu	$2,$4,-95
	sltu	$2,$2,8097
	beq	$2,$0,$L28
	addiu	$3,$4,1

	lw	$7,0($6)
	li	$2,8			# 0x8
	beq	$7,$2,$L10
	li	$2,16			# 0x10

	beq	$7,$2,$L10
	li	$2,32			# 0x20

	beq	$7,$2,$L10
	li	$2,64			# 0x40

	beq	$7,$2,$L10
	li	$2,128			# 0x80

	beq	$7,$2,$L29
	lw	$31,16($sp)

	lui	$6,%hi($LC3)
	addiu	$6,$6,%lo($LC3)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,1			# 0x1

	j	$L10
	li	$3,-1			# 0xffffffffffffffff

$L26:
	lui	$6,%hi($LC0)
	addiu	$6,$6,%lo($LC0)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,1			# 0x1

	j	$L10
	li	$3,-1			# 0xffffffffffffffff

$L27:
	lui	$6,%hi($LC1)
	addiu	$6,$6,%lo($LC1)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,1			# 0x1

	j	$L10
	li	$3,-1			# 0xffffffffffffffff

$L28:
	lui	$6,%hi($LC2)
	move	$7,$3
	addiu	$6,$6,%lo($LC2)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,1			# 0x1

	j	$L10
	li	$3,-1			# 0xffffffffffffffff

	.set	macro
	.set	reorder
	.end	dts_decode_header
	.section	.rodata.str1.4
	.align	2
$LC4:
	.ascii	"hwac3: switched to DTS, %d bps, %d Hz\012\000"
	.align	2
$LC5:
	.ascii	"hwac3: switched to AC3, %d bps, %d Hz\012\000"
	.align	2
$LC6:
	.ascii	"DTS\000"
	.align	2
$LC7:
	.ascii	"ac3dts: %s len=%d  flags=0x%X  %d Hz %d bit/s\012\000"
	.align	2
$LC8:
	.ascii	"a52: CRC check failed!  \012\000"
	.align	2
$LC9:
	.ascii	"AC3\000"
	.section	.text.ac3dts_fillbuff,"ax",@progbits
	.align	2
	.align	5
	.ent	ac3dts_fillbuff
	.type	ac3dts_fillbuff, @function
ac3dts_fillbuff:
	.frame	$sp,80,$31		# vars= 24, regs= 5/0, args= 32, gp= 0
	.mask	0x800f0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-80
	sw	$16,56($sp)
	lui	$2,%hi(DTS_BITRATES)
	move	$16,$4
	lui	$3,%hi(DTS_SAMPLEFREQS)
	sw	$19,68($sp)
	sw	$18,64($sp)
	sw	$31,72($sp)
	sw	$17,60($sp)
	sw	$0,32($sp)
	sw	$0,36($sp)
	sw	$0,40($sp)
	addiu	$18,$2,%lo(DTS_BITRATES)
	addiu	$19,$3,%lo(DTS_SAMPLEFREQS)
	move	$4,$0
	sw	$0,56($16)
$L66:
	slt	$2,$4,10
	beq	$2,$0,$L67
	nop

$L32:
	lw	$4,4($16)
	lw	$5,0($4)
	lw	$2,4($4)
	slt	$2,$5,$2
	bne	$2,$0,$L68
	addiu	$3,$5,1

	jal	ds_fill_buffer
	nop

	beq	$2,$0,$L57
	li	$17,-1			# 0xffffffffffffffff

	lw	$3,4($16)
	lw	$4,0($3)
	lw	$2,8($3)
	addiu	$5,$4,1
	addu	$2,$2,$4
	lbu	$6,0($2)
	bltz	$6,$L57
	sw	$5,0($3)

$L71:
	lw	$3,56($16)
	lw	$2,52($16)
	addiu	$4,$3,1
	addu	$2,$2,$3
	sb	$6,0($2)
	slt	$2,$4,10
	bne	$2,$0,$L32
	sw	$4,56($16)

$L67:
	lw	$4,52($16)
	addiu	$5,$sp,48
	addiu	$6,$sp,44
	jal	dts_decode_header
	addiu	$7,$sp,52

	bltz	$2,$L40
	move	$17,$2

	lw	$3,48($sp)
	sltu	$2,$3,30
	beq	$2,$0,$L42
	sll	$2,$3,2

	addu	$2,$2,$18
	lw	$3,0($2)
	sw	$3,40($sp)
$L44:
	lw	$3,52($sp)
	addiu	$2,$3,-1
	sltu	$2,$2,15
	beq	$2,$0,$L45
	slt	$2,$17,10

	sll	$2,$3,2
	addu	$2,$2,$19
	lw	$3,0($2)
	sw	$3,36($sp)
$L40:
	slt	$2,$17,10
	beq	$2,$0,$L69
	nop

$L47:
	lw	$4,52($16)
	addiu	$5,$sp,32
	addiu	$6,$sp,36
	jal	a52_syncinfo
	addiu	$7,$sp,40

	move	$17,$2
	addiu	$2,$2,-7
	sltu	$2,$2,3834
	bne	$2,$0,$L70
	li	$6,9			# 0x9

	lw	$4,52($16)
	jal	memcpy
	addiu	$5,$4,1

	lw	$4,56($16)
	addiu	$4,$4,-1
	j	$L66
	sw	$4,56($16)

$L45:
	bne	$2,$0,$L47
	sw	$0,36($sp)

$L69:
	lui	$19,%hi(isdts)
	lw	$2,%lo(isdts)($19)
	li	$18,1			# 0x1
	beq	$2,$18,$L49
	lw	$2,36($sp)

	lui	$6,%hi($LC4)
	lw	$7,40($sp)
	addiu	$6,$6,%lo($LC4)
	li	$4,12			# 0xc
	li	$5,5			# 0x5
	jal	mp_msg
	sw	$2,16($sp)

	sw	$18,%lo(isdts)($19)
$L49:
	lui	$2,%hi($LC6)
	addiu	$7,$2,%lo($LC6)
$L55:
	lw	$2,32($sp)
	lw	$3,36($sp)
	sw	$2,20($sp)
	lui	$6,%hi($LC7)
	lw	$2,40($sp)
	addiu	$6,$6,%lo($LC7)
	li	$4,12			# 0xc
	li	$5,7			# 0x7
	sw	$3,24($sp)
	sw	$2,28($sp)
	jal	mp_msg
	sw	$17,16($sp)

	lw	$2,40($sp)
	lw	$5,52($16)
	addiu	$4,$2,7
	slt	$3,$2,0
	movn	$2,$4,$3
	lw	$3,36($sp)
	sra	$2,$2,3
	lw	$4,4($16)
	sw	$3,28($16)
	sw	$2,44($16)
	addiu	$5,$5,10
	jal	demux_read_data
	addiu	$6,$17,-10

	lw	$3,%lo(isdts)($19)
	bne	$3,$0,$L57
	sw	$17,56($16)

	lw	$4,52($16)
	addiu	$5,$17,-2
	jal	a52_crc16_block
	addiu	$4,$4,2

	beq	$2,$0,$L57
	nop

	lui	$6,%hi($LC8)
	addiu	$6,$6,%lo($LC8)
	li	$4,12			# 0xc
	jal	mp_msg
	li	$5,5			# 0x5

	j	$L73
	move	$2,$17

$L42:
	j	$L44
	sw	$0,40($sp)

$L68:
	lw	$2,8($4)
	addu	$2,$2,$5
	lbu	$6,0($2)
	bgez	$6,$L71
	sw	$3,0($4)

	li	$17,-1			# 0xffffffffffffffff
$L57:
	move	$2,$17
$L73:
	lw	$31,72($sp)
	lw	$19,68($sp)
	lw	$18,64($sp)
	lw	$17,60($sp)
	lw	$16,56($sp)
	j	$31
	addiu	$sp,$sp,80

$L70:
	lui	$19,%hi(isdts)
	lw	$2,%lo(isdts)($19)
	bne	$2,$0,$L72
	lui	$2,%hi($LC9)

	j	$L55
	addiu	$7,$2,%lo($LC9)

$L72:
	lw	$2,36($sp)
	lw	$7,40($sp)
	lui	$6,%hi($LC5)
	addiu	$6,$6,%lo($LC5)
	li	$4,12			# 0xc
	li	$5,5			# 0x5
	jal	mp_msg
	sw	$2,16($sp)

	lui	$2,%hi($LC9)
	addiu	$7,$2,%lo($LC9)
	j	$L55
	sw	$0,%lo(isdts)($19)

	.set	macro
	.set	reorder
	.end	ac3dts_fillbuff
	.section	.text.control,"ax",@progbits
	.align	2
	.align	5
	.ent	control
	.type	control, @function
control:
	.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
	.mask	0x80000000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$5,$5,-1
	addiu	$sp,$sp,-24
	sltu	$5,$5,2
	sw	$31,16($sp)
	li	$2,-1			# 0xffffffffffffffff
	beq	$5,$0,$L77
	sw	$7,36($sp)

	jal	ac3dts_fillbuff
	nop

	li	$2,1			# 0x1
$L77:
	lw	$31,16($sp)
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	control
	.section	.rodata.str1.4
	.align	2
$LC10:
	.ascii	"A52 init failed\012\000"
	.align	2
$LC11:
	.ascii	"AC3/DTS sync failed\012\000"
	.section	.text.init,"ax",@progbits
	.align	2
	.align	5
	.ent	init
	.type	init, @function
init:
	.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
	.mask	0x80010000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$16,16($sp)
	sw	$31,20($sp)
	jal	a52_init
	move	$16,$4

	lui	$6,%hi($LC10)
	move	$4,$16
	addiu	$6,$6,%lo($LC10)
	beq	$2,$0,$L86
	li	$5,1			# 0x1

	jal	ac3dts_fillbuff
	nop

	lui	$6,%hi($LC11)
	addiu	$6,$6,%lo($LC11)
	li	$3,1			# 0x1
	li	$4,12			# 0xc
	bltz	$2,$L87
	li	$5,1			# 0x1

	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,24

$L86:
	jal	mp_msg
	li	$4,12			# 0xc

	move	$3,$0
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,24

$L87:
	jal	mp_msg
	nop

	move	$3,$0
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	init
	.section	.rodata.str1.4
	.align	2
$LC12:
	.ascii	"DTS: %d-sample bursts not supported\012\000"
	.align	2
$LC13:
	.ascii	"DTS: more data than fits\012\000"
	.section	.text.decode_audio,"ax",@progbits
	.align	2
	.align	5
	.ent	decode_audio
	.type	decode_audio, @function
decode_audio:
	.frame	$sp,56,$31		# vars= 16, regs= 5/0, args= 16, gp= 0
	.mask	0x800f0000,-8
	.fmask	0x00000000,0
	addiu	$sp,$sp,-56
	sw	$18,40($sp)
	sw	$17,36($sp)
	sw	$31,48($sp)
	sw	$19,44($sp)
	sw	$16,32($sp)
	lw	$16,56($4)
	move	$17,$4
	.set	noreorder
	.set	nomacro
	blez	$16,$L157
	move	$18,$5
	.set	macro
	.set	reorder

$L89:
	lui	$2,%hi(isdts)
	lw	$2,%lo(isdts)($2)
	li	$19,1			# 0x1
	.set	noreorder
	.set	nomacro
	beq	$2,$19,$L158
	sw	$0,56($17)
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L159
	li	$2,-1934
	.set	macro
	.set	reorder

$L94:
	li	$16,-1			# 0xffffffffffffffff
$L91:
	move	$2,$16
$L167:
	lw	$31,48($sp)
	lw	$19,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	.set	noreorder
	.set	nomacro
	j	$31
	addiu	$sp,$sp,56
	.set	macro
	.set	reorder

$L159:
	lw	$4,52($17)
	li	$3,19999
	sh	$3,2($18)
	sh	$19,4($18)
	sh	$2,0($18)
	lbu	$2,5($4)
	sll	$3,$16,3
	andi	$2,$2,0x7
	sll	$2,$2,8
	ori	$2,$2,0x1
	sh	$3,6($18)
	sh	$2,4($18)
	addiu	$5,$18,8
	.set	noreorder
	.set	nomacro
	jal	swab
	move	$6,$16
	.set	macro
	.set	reorder

	andi	$3,$16,0x1
	.set	noreorder
	.set	nomacro
	bne	$3,$0,$L160
	addu	$2,$18,$16
	.set	macro
	.set	reorder

	li	$2,6136			# 0x17f8
	subu	$6,$2,$16
	addu	$5,$18,$16