demux_avi.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 5,181 行 · 第 1/5 页

	.file	1 "demux_avi.c"
	.section .mdebug.abi32
	.previous
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"Auto-selected AVI audio ID = %d\012\000"
	.align	2
$LC1:
	.ascii	"AVI: Working around CBR-MP3 nBlockAlign header bug!\012\000"
	.align	2
$LC2:
	.ascii	"Auto-selected AVI video ID = %d\012\000"
	.align	2
$LC3:
	.ascii	"Unknown chunk: %.4s (%X)\012\000"
	.section	.text.demux_avi_select_stream,"ax",@progbits
	.align	2
	.align	5
	.globl	demux_avi_select_stream
	.ent	demux_avi_select_stream
	.type	demux_avi_select_stream, @function
demux_avi_select_stream:
	.frame	$sp,48,$31		# vars= 8, regs= 4/0, args= 24, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-48
	sw	$5,24($sp)
	lbu	$2,24($sp)
	sw	$16,32($sp)
	addiu	$2,$2,-48
	move	$16,$4
	andi	$4,$2,0x00ff
	sltu	$3,$4,10
	sw	$31,44($sp)
	sw	$18,40($sp)
	sw	$17,36($sp)
	sw	$5,52($sp)
	beq	$3,$0,$L2
	lbu	$2,25($sp)

	addiu	$2,$2,-48
	andi	$7,$2,0x00ff
	sltu	$3,$7,10
	bne	$3,$0,$L39
	sll	$3,$4,3

$L2:
	lw	$4,56($16)
	li	$2,-1			# 0xffffffffffffffff
	lw	$3,68($4)
	beq	$3,$2,$L40
	li	$7,100			# 0x64

$L6:
	lw	$5,52($16)
	li	$2,-1			# 0xffffffffffffffff
	lw	$3,68($5)
	beq	$3,$2,$L50
	sll	$2,$7,2

$L9:
	lw	$2,68($5)
	beq	$7,$2,$L42
	nop

$L12:
	lw	$2,68($4)
	bne	$7,$2,$L27
	li	$2,1263403008			# 0x4b4e0000

	lw	$2,92($4)
	beq	$2,$0,$L43
	sll	$2,$7,2

$L29:
	lw	$31,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,48

$L39:
	sll	$2,$4,1
	lw	$4,56($16)
	addu	$2,$2,$3
	lw	$3,68($4)
	addu	$7,$2,$7
	li	$2,-1			# 0xffffffffffffffff
	bne	$3,$2,$L6
	nop

$L40:
	sll	$2,$7,2
	addu	$2,$2,$16
	lw	$3,1088($2)
	beq	$3,$0,$L6
	li	$2,-1			# 0xffffffffffffffff

	lw	$5,52($16)
	sw	$7,68($4)
	lw	$3,68($5)
	bne	$3,$2,$L9
	sll	$2,$7,2

$L50:
	addu	$2,$2,$16
	lw	$3,64($2)
	beq	$3,$0,$L9
	nop

	sw	$7,68($5)
	lw	$2,68($5)
	bne	$7,$2,$L12
	nop

$L42:
	lw	$2,92($5)
	beq	$2,$0,$L44
	move	$2,$5

$L47:
	lw	$31,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	j	$31
	addiu	$sp,$sp,48

$L43:
	addu	$2,$2,$16
	lw	$3,1088($2)
	lui	$6,%hi($LC2)
	sw	$3,92($4)
	addiu	$6,$6,%lo($LC2)
	li	$4,7			# 0x7
	jal	mp_msg
	li	$5,6			# 0x6

	j	$L29
	lw	$4,56($16)

$L27:
	lw	$3,52($sp)
	ori	$2,$2,0x554a
	bne	$3,$2,$L45
	lui	$6,%hi($LC3)

	move	$2,$0
$L48:
	lw	$31,44($sp)
	lw	$18,40($sp)
	lw	$17,36($sp)
	lw	$16,32($sp)
	j	$31
	addiu	$sp,$sp,48

$L44:
	sll	$2,$7,2
	addu	$2,$2,$16
	lw	$17,64($2)
	lui	$6,%hi($LC0)
	lw	$18,2248($16)
	addiu	$6,$6,%lo($LC0)
	sw	$17,92($5)
	li	$4,7			# 0x7
	jal	mp_msg
	li	$5,6			# 0x6

	lw	$5,156($17)
	beq	$5,$0,$L16
	nop

	lbu	$2,13($5)
	lbu	$3,12($5)
	sll	$2,$2,8
	or	$2,$2,$3
	bne	$2,$0,$L18
	sw	$2,28($18)

	lw	$2,12($17)
	li	$3,1			# 0x1
	beq	$2,$3,$L46
	nop

	lw	$5,52($16)
	sw	$3,28($18)
	j	$L47
	move	$2,$5

$L45:
	addiu	$6,$6,%lo($LC3)
	li	$4,7			# 0x7
	li	$5,7			# 0x7
	addiu	$7,$sp,52
	jal	mp_msg
	sw	$3,16($sp)

	j	$L48
	move	$2,$0

$L18:
	lw	$3,144($17)
	li	$2,1			# 0x1
	beq	$3,$2,$L49
	nop

$L36:
	lw	$5,52($16)
	j	$L47
	move	$2,$5

$L49:
	lw	$17,120($17)
	bne	$17,$3,$L36
	nop

	lbu	$2,13($5)
	lbu	$4,12($5)
	sll	$2,$2,8
	or	$4,$2,$4
	li	$3,1152			# 0x480
	beq	$4,$3,$L51
	lui	$6,%hi($LC1)

	li	$2,576			# 0x240
	bne	$4,$2,$L36
	nop

$L51:
	li	$5,2			# 0x2
	addiu	$6,$6,%lo($LC1)
	jal	mp_msg
	li	$4,7			# 0x7

	lw	$5,52($16)
	sw	$17,28($18)
	j	$L47
	move	$2,$5

$L16:
	lw	$2,144($17)
	lw	$5,52($16)
	sw	$2,28($18)
	j	$L47
	move	$2,$5

$L46:
	lbu	$2,15($5)
	lbu	$3,3($5)
	lbu	$4,14($5)
	sll	$2,$2,8
	lbu	$5,2($5)
	or	$2,$2,$4
	sll	$3,$3,8
	or	$3,$3,$5
	srl	$2,$2,3
	mul	$3,$3,$2
	lw	$5,52($16)
	sw	$3,28($18)
	j	$L47
	move	$2,$5

	.set	macro
	.set	reorder
	.end	demux_avi_select_stream
	.globl	__floatsidf
	.globl	__adddf3
	.globl	__extendsfdf2
	.globl	__divdf3
	.section	.rodata.cst8,"aM",@progbits,8
	.align	3
$LC4:
	.word	0
	.word	1106247680
	.section	.text.demux_avi_control,"ax",@progbits
	.align	2
	.align	5
	.ent	demux_avi_control
	.type	demux_avi_control, @function
demux_avi_control:
	.frame	$sp,40,$31		# vars= 0, regs= 6/0, args= 16, gp= 0
	.mask	0x801f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-40
	sw	$20,32($sp)
	sw	$31,36($sp)
	sw	$19,28($sp)
	sw	$18,24($sp)
	sw	$17,20($sp)
	sw	$16,16($sp)
	lw	$3,56($4)
	li	$2,11			# 0xb
	move	$7,$4
	move	$20,$6
	lw	$4,2248($4)
	beq	$5,$2,$L55
	lw	$17,92($3)

	slt	$2,$5,12
	bne	$2,$0,$L83
	li	$2,10			# 0xa

	li	$2,12			# 0xc
	beq	$5,$2,$L56
	li	$2,14			# 0xe

	beq	$5,$2,$L89
	li	$2,12			# 0xc

$L53:
	li	$3,-1			# 0xffffffffffffffff
$L80:
	lw	$31,36($sp)
	lw	$20,32($sp)
	lw	$19,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,40

$L83:
	bne	$5,$2,$L80
	li	$3,-1			# 0xffffffffffffffff

	lw	$16,64($4)
	beq	$16,$0,$L90
	move	$3,$0

	beq	$17,$0,$L91
	lw	$31,36($sp)

	jal	__floatsidf
	move	$4,$16

	move	$18,$2
	bltz	$16,$L84
	move	$19,$3

$L61:
	jal	__extendsfdf2
	lw	$4,236($17)

	move	$6,$2
	move	$4,$18
	move	$5,$19
	jal	__divdf3
	move	$7,$3

	lw	$4,312($17)
	sw	$2,0($20)
	sltu	$4,$4,2
	beq	$4,$0,$L63
	sw	$3,4($20)

$L62:
	li	$3,2			# 0x2
	lw	$31,36($sp)
	lw	$20,32($sp)
	lw	$19,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,40

$L55:
	lw	$5,64($4)
	beq	$5,$0,$L90
	move	$3,$0

	beq	$17,$0,$L91
	lw	$31,36($sp)

	lw	$2,24($4)
	sll	$4,$2,4
	sll	$2,$2,2
	addu	$2,$2,$4
	sll	$3,$2,2
	addu	$2,$2,$3
	divu	$0,$2,$5
	teq	$5,$0,7
	mflo	$2
	sw	$2,0($6)
	lw	$3,312($17)
	sltu	$3,$3,2
	bne	$3,$0,$L62
	nop

$L63:
	j	$L80
	li	$3,1			# 0x1

$L90:
	lw	$31,36($sp)
$L91:
	lw	$20,32($sp)
	lw	$19,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,40

$L56:
	li	$2,12			# 0xc
$L89:
	bne	$5,$2,$L66
	move	$16,$3

	lw	$16,52($7)
	addiu	$5,$7,64
$L68:
	lw	$6,68($16)
	slt	$2,$6,-1
	bne	$2,$0,$L53
	nop

	lw	$2,0($20)
	bltz	$2,$L70
	move	$4,$0

	move	$6,$2
	sw	$2,68($16)
	sll	$2,$6,2
	addu	$2,$2,$5
$L92:
	sw	$0,92($16)
	lw	$3,0($2)
	beq	$3,$0,$L85
	li	$2,1717960704			# 0x66660000

	ori	$2,$2,0x6667
	mult	$6,$2
	sra	$3,$6,31
	mfhi	$2
	sra	$2,$2,2
	subu	$2,$2,$3
	sll	$4,$2,3
	sll	$5,$2,1
	addu	$5,$5,$4
	subu	$5,$6,$5
	addiu	$5,$5,48
	addiu	$2,$2,48
	sll	$5,$5,8
	or	$5,$2,$5
	jal	demux_avi_select_stream
	move	$4,$7

	lw	$2,68($16)
	li	$3,1			# 0x1
	sw	$2,0($20)
$L86:
	lw	$31,36($sp)
	lw	$20,32($sp)
	lw	$19,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$3
	j	$31
	addiu	$sp,$sp,40

$L66:
	j	$L68
	addiu	$5,$7,1088

$L85:
	li	$6,-1			# 0xffffffffffffffff
	move	$2,$6
	li	$3,1			# 0x1
	sw	$6,68($16)
	j	$L86
	sw	$2,0($20)

$L84:
	lui	$2,%hi($LC4)
	lw	$6,%lo($LC4)($2)
	lw	$7,%lo($LC4+4)($2)
	move	$4,$18
	jal	__adddf3
	move	$5,$3

	move	$18,$2
	j	$L61
	move	$19,$3

$L70:
	j	$L73
	li	$8,100			# 0x64

$L87:
	beq	$4,$8,$L92
	addu	$2,$2,$5

$L73:
	addiu	$6,$6,1
	slt	$2,$6,100
	addiu	$4,$4,1
	bne	$2,$0,$L74
	sw	$6,68($16)

	sw	$0,68($16)
	move	$6,$0
$L74:
	sll	$2,$6,2
	addu	$2,$2,$5
	lw	$3,0($2)
	beq	$3,$0,$L87
	sll	$2,$6,2

	j	$L92
	addu	$2,$2,$5

	.set	macro
	.set	reorder
	.end	demux_avi_control
	.section	.text.valid_fourcc,"ax",@progbits
	.align	2
	.align	5
	.ent	valid_fourcc
	.type	valid_fourcc, @function
valid_fourcc:
	.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	$4,24($sp)
	sw	$16,16($sp)
	lbu	$5,24($sp)
	lui	$16,%hi(valid.3814)
	sw	$31,20($sp)
	jal	strchr
	addiu	$4,$16,%lo(valid.3814)

	beq	$2,$0,$L94
	addiu	$4,$16,%lo(valid.3814)

	jal	strchr
	lbu	$5,25($sp)

	beq	$2,$0,$L94
	addiu	$4,$16,%lo(valid.3814)

	jal	strchr
	lbu	$5,26($sp)

	beq	$2,$0,$L94
	addiu	$4,$16,%lo(valid.3814)

	jal	strchr
	lbu	$5,27($sp)

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

$L94:
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	valid_fourcc
	.globl	__floatsisf
	.globl	__addsf3
	.globl	__divsf3
	.section	.rodata.str1.4
	.align	2
$LC5:
	.ascii	"XXX initial  v_pts=%5.3f  a_pos=%d (%5.3f) \012\000"
	.globl	__subsf3
	.globl	__mulsf3
	.section	.text.demux_avi_read_packet,"ax",@progbits
	.align	2
	.align	5
	.ent	demux_avi_read_packet
	.type	demux_avi_read_packet, @function
demux_avi_read_packet:
	.frame	$sp,72,$31		# vars= 0, regs= 8/0, args= 40, gp= 0
	.mask	0x807f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-72
	sw	$21,60($sp)
	sw	$20,56($sp)
	sw	$18,48($sp)
	sw	$31,68($sp)
	sw	$22,64($sp)
	sw	$19,52($sp)
	sw	$17,44($sp)
	sw	$16,40($sp)
	lw	$22,52($4)
	move	$21,$4
	move	$18,$5
	move	$20,$7
	beq	$22,$5,$L157
	lw	$16,2248($4)

	lw	$3,56($4)
	beq	$5,$3,$L158
	move	$19,$0

$L124:
	addiu	$3,$20,1
	li	$2,-2			# 0xfffffffffffffffe
	beq	$18,$0,$L136
	and	$17,$3,$2

$L135:
	jal	__extendsfdf2
	move	$4,$19

	lw	$16,16($21)
	sw	$2,16($sp)
	sw	$3,20($sp)
	lw	$2,88($sp)
	lw	$3,92($sp)
	move	$5,$16
	move	$4,$18
	move	$6,$20
	sw	$2,24($sp)
	sw	$3,28($sp)
	jal	ds_read_packet
	subu	$17,$17,$20

$L136:
	beq	$17,$0,$L161
	sltu	$2,$0,$18

	bltz	$17,$L159
	lw	$16,16($21)

	li	$2,262144			# 0x40000
	slt	$2,$2,$17
	beq	$2,$0,$L160
	nop

	lw	$2,28($16)
	andi	$2,$2,0x4
	bne	$2,$0,$L141
	nop

$L154:
	lw	$6,40($16)
	j	$L155
	lw	$5,36($16)

$L150:
	slt	$2,$17,$3
	movn	$3,$17,$2
	addu	$4,$5,$3
	subu	$17,$17,$3
	move	$5,$4
	blez	$17,$L137
	sw	$4,36($16)

$L155:
	subu	$2,$6,$5
	move	$4,$16
	bne	$2,$0,$L150
	move	$3,$2

	jal	stream_fill_buffer
	nop

	beq	$2,$0,$L161
	sltu	$2,$0,$18

	lw	$5,36($16)
	lw	$6,40($16)
	subu	$3,$6,$5
	slt	$2,$17,$3
	movn	$3,$17,$2
	addu	$4,$5,$3
	subu	$17,$17,$3
	move	$5,$4
	bgtz	$17,$L155
	sw	$4,36($16)

$L137:
	sltu	$2,$0,$18
$L161:
	lw	$31,68($sp)
$L168:
	lw	$22,64($sp)
	lw	$21,60($sp)
	lw	$20,56($sp)
	lw	$19,52($sp)
	lw	$18,48($sp)
	lw	$17,44($sp)
	lw	$16,40($sp)
	j	$31
	addiu	$sp,$sp,72

$L160:
	bgtz	$17,$L154
	sltu	$2,$0,$18

	j	$L168
	lw	$31,68($sp)

$L159:
	lw	$2,28($16)
	andi	$2,$2,0x2
	beq	$2,$0,$L161
	sltu	$2,$0,$18

$L141:
	lw	$4,44($16)
	lw	$2,36($16)
	lw	$6,40($16)
	addu	$2,$4,$2
	subu	$2,$2,$6
	addu	$5,$17,$2
	slt	$3,$5,$4
	beq	$3,$0,$L145
	nop

	subu	$2,$4,$6
	subu	$2,$5,$2
	bltz	$2,$L145
	nop

	sw	$2,36($16)
	lw	$31,68($sp)
	sltu	$2,$0,$18
	lw	$22,64($sp)
	lw	$21,60($sp)
	lw	$20,56($sp)
	lw	$19,52($sp)
	lw	$18,48($sp)
	lw	$17,44($sp)
	lw	$16,40($sp)
	j	$31
	addiu	$sp,$sp,72

$L145:
	jal	stream_seek_long
	move	$4,$16

	j	$L161
	sltu	$2,$0,$18

$L157:
	lbu	$2,60($16)
	bne	$2,$0,$L167
	lui	$2,%hi(pts_from_bps)

	lbu	$2,61($16)
	beq	$2,$0,$L105
	nop

	lw	$3,92($5)
	lw	$2,156($3)
	lwl	$17,11($2)
	lwr	$17,8($2)
	bne	$17,$0,$L107
	move	$18,$0

	move	$17,$0
	move	$19,$0
$L109:
	jal	__extendsfdf2
	lw	$4,44($16)

	sw	$3,20($sp)
	sw	$2,16($sp)
	lw	$2,56($16)
	lui	$6,%hi($LC5)
	addiu	$6,$6,%lo($LC5)
	li	$5,6			# 0x6
	li	$4,7			# 0x7
	sw	$2,24($sp)
	sw	$18,32($sp)
	jal	mp_msg
	sw	$19,36($sp)

	lw	$5,44($16)
	jal	__subsf3
	move	$4,$17

	lw	$4,44($16)
	sw	$2,52($16)
	jal	__addsf3
	move	$5,$2

	sw	$2,44($16)
	li	$2,1
	sb	$2,60($16)
$L103:
	lui	$2,%hi(pts_from_bps)
$L167:
	lw	$3,%lo(pts_from_bps)($2)
	beq	$3,$0,$L114
	nop

	lw	$2,52($21)
	lw	$4,32($16)
	jal	__floatsisf
	lw	$17,92($2)

	lw	$4,120($17)
	bltz	$4,$L117
	move	$18,$2

	jal	__floatsisf
	nop

	move	$4,$18
$L165:
	jal	__mulsf3
	move	$5,$2

	lw	$4,124($17)
	bltz	$4,$L119
	move	$18,$2

	jal	__floatsisf
	nop

	move	$4,$18
$L164:
	jal	__divsf3
	move	$5,$2

	move	$19,$2
$L120:
	lw	$3,28($16)
	move	$2,$0
	sw	$2,44($16)
	bne	$3,$0,$L121
	lw	$4,32($16)

	li	$2,1			# 0x1
$L123:
	addu	$2,$2,$4
	move	$18,$22
	j	$L124
	sw	$2,32($16)

$L158:
	lw	$2,36($16)
	blez	$2,$L127
	addiu	$2,$2,-1

	sw	$2,36($16)
	move	$18,$0
$L127:
	lw	$17,92($3)
	jal	__floatsisf
	lw	$4,24($16)

	lw	$4,300($17)
	bltz	$4,$L130
	move	$19,$2

	jal	__floatsisf
	nop

	move	$4,$19
$L163:
	jal	__mulsf3
	move	$5,$2

	lw	$4,304($17)
	bltz	$4,$L132
	move	$19,$2

	jal	__floatsisf
	nop

	move	$4,$19
$L162:
	jal	__divsf3
	move	$5,$2

	lw	$5,52($16)
	sw	$2,48($16)
	move	$4,$2
	jal	__addsf3
	move	$19,$2

	sw	$2,44($16)
	li	$2,1
	beq	$18,$0,$L133
	sb	$2,61($16)

	lw	$2,24($16)
	addiu	$4,$20,1
	li	$3,-2			# 0xfffffffffffffffe
	addiu	$2,$2,1
	and	$17,$4,$3
	j	$L135
	sw	$2,24($16)

$L121:
	addu	$2,$20,$3
	addiu	$2,$2,-1
	divu	$0,$2,$3
	teq	$3,$0,7
	j	$L123
	mflo	$2

$L114:
	j	$L120
	lw	$19,44($16)

$L105:
	lw	$2,56($16)
	addu	$2,$2,$7
	j	$L103
	sw	$2,56($16)

$L132:
	srl	$2,$4,1
	andi	$4,$4,0x1
	jal	__floatsisf
	or	$4,$4,$2

	move	$4,$2
	jal	__addsf3
	move	$5,$2

	j	$L162
	move	$4,$19

$L130:
	srl	$2,$4,1
	andi	$4,$4,0x1
	jal	__floatsisf
	or	$4,$4,$2

	move	$4,$2
	jal	__addsf3
	move	$5,$2

	j	$L163
	move	$4,$19

$L133:
	addiu	$3,$20,1
	li	$2,-2			# 0xfffffffffffffffe
	j	$L136
	and	$17,$3,$2

$L107:
	lw	$4,56($16)
	bltz	$4,$L111
	srl	$2,$4,1

	jal	__floatsisf
	nop

	move	$18,$2
$L110:
	bltz	$17,$L113
	srl	$2,$17,1

	jal	__floatsisf
	move	$4,$17

	move	$4,$18
$L166:
	jal	__divsf3
	move	$5,$2

	move	$4,$2
	jal	__extendsfdf2
	move	$17,$2

	move	$18,$2
	j	$L109
	move	$19,$3

$L119:
	srl	$2,$4,1
	andi	$4,$4,0x1
	jal	__floatsisf
	or	$4,$4,$2

	move	$4,$2
	jal	__addsf3
	move	$5,$2

	j	$L164
	move	$4,$18

$L117:
	srl	$2,$4,1
	andi	$4,$4,0x1
	jal	__floatsisf
	or	$4,$4,$2

	move	$4,$2
	jal	__addsf3
	move	$5,$2

	j	$L165
	move	$4,$18

$L111:
	andi	$4,$4,0x1
	jal	__floatsisf
	or	$4,$4,$2

	move	$4,$2
	jal	__addsf3
	move	$5,$2

	j	$L110
	move	$18,$2

$L113:
	andi	$4,$17,0x1