wv.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 766 行

	.file	1 "wv.c"
	.section .mdebug.abi32
	.previous
	.section	.text.wv_probe,"ax",@progbits
	.align	2
	.align	5
	.ent	wv_probe
	.type	wv_probe, @function
wv_probe:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lw	$2,8($4)
	slt	$2,$2,33
	bne	$2,$0,$L12
	move	$5,$0

	lw	$4,4($4)
	li	$2,119			# 0x77
	lbu	$3,0($4)
	beq	$3,$2,$L11
	nop

$L8:
$L12:
	j	$31
	move	$2,$5

$L11:
	lbu	$3,1($4)
	li	$2,118			# 0x76
	bne	$3,$2,$L12
	move	$5,$0

	lbu	$3,2($4)
	li	$2,112			# 0x70
	bne	$3,$2,$L12
	nop

	lbu	$3,3($4)
	li	$2,107			# 0x6b
	beq	$3,$2,$L8
	li	$5,100			# 0x64

	j	$L12
	move	$5,$0

	.set	macro
	.set	reorder
	.end	wv_probe
	.section	.text.wv_read_close,"ax",@progbits
	.align	2
	.align	5
	.ent	wv_read_close
	.type	wv_read_close, @function
wv_read_close:
	.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
	move	$2,$0

	.set	macro
	.set	reorder
	.end	wv_read_close
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"Incorrect block size %i\012\000"
	.align	2
$LC1:
	.ascii	"Unsupported version %03X\012\000"
	.align	2
$LC2:
	.ascii	"Floating point data is not supported\012\000"
	.align	2
$LC3:
	.ascii	"Hybrid coding mode is not supported\012\000"
	.align	2
$LC4:
	.ascii	"Unknown sampling rate\012\000"
	.align	2
$LC5:
	.ascii	"Bits per sample differ, this block: %i, header block: %i"
	.ascii	"\012\000"
	.align	2
$LC6:
	.ascii	"Channels differ, this block: %i, header block: %i\012\000"
	.align	2
$LC7:
	.ascii	"Sampling rate differ, this block: %i, header block: %i\012"
	.ascii	"\000"
	.section	.text.wv_read_block_header,"ax",@progbits
	.align	2
	.align	5
	.ent	wv_read_block_header
	.type	wv_read_block_header, @function
wv_read_block_header:
	.frame	$sp,48,$31		# vars= 0, regs= 6/0, args= 24, gp= 0
	.mask	0x801f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-48
	sw	$31,44($sp)
	sw	$19,36($sp)
	sw	$18,32($sp)
	sw	$20,40($sp)
	sw	$17,28($sp)
	sw	$16,24($sp)
	lw	$17,12($4)
	move	$19,$4
	move	$4,$5
	jal	url_ftell
	move	$18,$5

	sw	$3,52($17)
	sw	$2,48($17)
	jal	get_le32
	move	$4,$18

	li	$3,1802502144			# 0x6b700000
	ori	$3,$3,0x7677
	beq	$2,$3,$L48
	li	$2,-1			# 0xffffffffffffffff

$L18:
	lw	$31,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	j	$31
	addiu	$sp,$sp,48

$L48:
	jal	get_le32
	move	$4,$18

	addiu	$20,$2,-24
	move	$7,$2
	li	$2,983040			# 0xf0000
	ori	$2,$2,0xfc01
	sltu	$2,$20,$2
	beq	$2,$0,$L49
	lui	$6,%hi($LC0)

	sw	$7,0($17)
	jal	get_le16
	move	$4,$18

	move	$7,$2
	addiu	$2,$2,-1026
	sltu	$2,$2,15
	beq	$2,$0,$L50
	lui	$6,%hi($LC1)

	jal	get_byte
	move	$4,$18

	jal	get_byte
	move	$4,$18

	jal	get_le32
	move	$4,$18

	sw	$2,20($17)
	jal	get_le32
	move	$4,$18

	addiu	$16,$17,32
	move	$4,$18
	move	$5,$16
	sw	$2,24($17)
	jal	get_buffer
	li	$6,12			# 0xc

	lbu	$3,7($16)
	lbu	$4,6($16)
	lbu	$5,4($16)
	sll	$4,$4,16
	lbu	$2,5($16)
	sll	$3,$3,24
	or	$3,$3,$4
	or	$3,$3,$5
	sll	$2,$2,8
	or	$5,$2,$3
	andi	$4,$5,0x80
	bne	$4,$0,$L51
	sw	$5,4($17)

	andi	$2,$5,0x8
	bne	$2,$0,$L52
	srl	$3,$5,21

	lui	$2,%hi(wv_rates)
	addiu	$2,$2,%lo(wv_rates)
	andi	$3,$3,0x3c
	addu	$3,$3,$2
	lw	$8,0($3)
	andi	$4,$5,0x4
	li	$9,2			# 0x2
	li	$2,1			# 0x1
	li	$3,-1			# 0xffffffffffffffff
	beq	$8,$3,$L53
	movn	$9,$2,$4

	andi	$2,$5,0x3
	lw	$3,16($17)
	addiu	$2,$2,1
	beq	$3,$0,$L54
	sll	$7,$2,3

	lw	$2,12($17)
	beq	$2,$0,$L55
	nop

$L34:
	lw	$2,8($17)
	beq	$2,$0,$L56
	nop

$L36:
	lw	$2,4($17)
	beq	$2,$0,$L38
	nop

	lw	$2,16($17)
$L61:
	bne	$7,$2,$L57
	move	$5,$0

	lw	$2,12($17)
	bne	$9,$2,$L58
	nop

	lw	$2,8($17)
	bne	$8,$2,$L59
	nop

$L38:
	sw	$20,0($17)
	lw	$31,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,48

$L56:
	lw	$2,4($17)
$L62:
	beq	$2,$0,$L38
	sw	$8,8($17)

	j	$L61
	lw	$2,16($17)

$L55:
	lw	$2,8($17)
$L63:
	bne	$2,$0,$L36
	sw	$9,12($17)

	j	$L62
	lw	$2,4($17)

$L54:
	lw	$2,12($17)
	bne	$2,$0,$L34
	sw	$7,16($17)

	j	$L63
	lw	$2,8($17)

$L59:
	lui	$6,%hi($LC7)
	move	$4,$19
	addiu	$6,$6,%lo($LC7)
	move	$7,$8
	jal	av_log
	sw	$2,16($sp)

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L49:
	move	$4,$19
	addiu	$6,$6,%lo($LC0)
	jal	av_log
	move	$5,$0

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L50:
	move	$4,$19
	addiu	$6,$6,%lo($LC1)
	jal	av_log
	move	$5,$0

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L57:
	lui	$6,%hi($LC5)
	move	$4,$19
	addiu	$6,$6,%lo($LC5)
	jal	av_log
	sw	$2,16($sp)

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L58:
	lui	$6,%hi($LC6)
	move	$4,$19
	addiu	$6,$6,%lo($LC6)
	move	$7,$9
	jal	av_log
	sw	$2,16($sp)

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L51:
	lui	$6,%hi($LC2)
	move	$4,$19
	addiu	$6,$6,%lo($LC2)
	jal	av_log
	move	$5,$0

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L52:
	lui	$6,%hi($LC3)
	move	$4,$19
	addiu	$6,$6,%lo($LC3)
	jal	av_log
	move	$5,$0

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

$L53:
	lui	$6,%hi($LC4)
	move	$4,$19
	addiu	$6,$6,%lo($LC4)
	jal	av_log
	move	$5,$0

	j	$L18
	li	$2,-1			# 0xffffffffffffffff

	.set	macro
	.set	reorder
	.end	wv_read_block_header
	.section	.text.wv_read_packet,"ax",@progbits
	.align	2
	.align	5
	.ent	wv_read_packet
	.type	wv_read_packet, @function
wv_read_packet:
	.frame	$sp,64,$31		# vars= 0, regs= 5/0, args= 40, gp= 0
	.mask	0x800f0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$17,44($sp)
	addiu	$17,$4,16
	sw	$19,52($sp)
	sw	$18,48($sp)
	move	$19,$4
	sw	$31,56($sp)
	sw	$16,40($sp)
	move	$4,$17
	move	$18,$5
	jal	url_feof
	lw	$16,12($19)

	bne	$2,$0,$L81
	lw	$31,56($sp)

	lw	$2,28($16)
	bne	$2,$0,$L77
	move	$4,$19

$L67:
	lw	$5,0($16)
	move	$4,$18
	jal	av_new_packet
	addiu	$5,$5,12

	bltz	$2,$L78
	addiu	$5,$16,32

	lw	$4,16($18)
	jal	memcpy
	li	$6,12			# 0xc

	lw	$5,16($18)
	lw	$6,0($16)
	move	$4,$17
	jal	get_buffer
	addiu	$5,$5,12

	move	$4,$2
	lw	$2,0($16)
	bne	$4,$2,$L79
	li	$5,1			# 0x1

	addiu	$4,$4,12
	sw	$0,24($18)
	sw	$5,28($16)
	sw	$4,20($18)
	lw	$2,24($16)
	move	$3,$0
	sw	$2,0($18)
	sw	$3,4($18)
	lw	$6,48($16)
	lw	$7,52($16)
	lw	$4,100($19)
	sw	$2,16($sp)
	sw	$3,20($sp)
	sw	$5,32($sp)
	sw	$0,24($sp)
	jal	av_add_index_entry
	sw	$0,28($sp)

	move	$2,$0
$L70:
	lw	$31,56($sp)
$L82:
	lw	$19,52($sp)
	lw	$18,48($sp)
	lw	$17,44($sp)
	lw	$16,40($sp)
	j	$31
	addiu	$sp,$sp,64

$L77:
	jal	wv_read_block_header
	move	$5,$17

	bgez	$2,$L67
	li	$2,-1			# 0xffffffffffffffff

	j	$L82
	lw	$31,56($sp)

$L79:
	lw	$2,36($18)
	bne	$2,$0,$L80
	lw	$31,56($sp)

$L81:
	lw	$19,52($sp)
	lw	$18,48($sp)
	lw	$17,44($sp)
	lw	$16,40($sp)
	li	$2,-5			# 0xfffffffffffffffb
	j	$31
	addiu	$sp,$sp,64

$L78:
	lw	$31,56($sp)
	lw	$19,52($sp)
	lw	$18,48($sp)
	lw	$17,44($sp)
	lw	$16,40($sp)
	li	$2,-12			# 0xfffffffffffffff4
	j	$31
	addiu	$sp,$sp,64

$L80:
	jal	$2
	move	$4,$18

	j	$L70
	li	$2,-5			# 0xfffffffffffffffb

	.set	macro
	.set	reorder
	.end	wv_read_packet
	.globl	__divdi3
	.section	.text.wv_read_header,"ax",@progbits
	.align	2
	.align	5
	.ent	wv_read_header
	.type	wv_read_header, @function
wv_read_header:
	.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-32
	sw	$17,20($sp)
	addiu	$5,$4,16
	sw	$31,28($sp)
	sw	$18,24($sp)
	sw	$16,16($sp)
	move	$17,$4
	jal	wv_read_block_header
	lw	$16,12($4)

	move	$4,$17
	bgez	$2,$L89
	move	$5,$0

$L84:
	li	$4,-1			# 0xffffffffffffffff
$L87:
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$4
	j	$31
	addiu	$sp,$sp,32

$L89:
	jal	av_new_stream
	sw	$0,28($16)

	move	$18,$2
	move	$4,$2
	li	$5,64			# 0x40
	beq	$2,$0,$L84
	li	$6,1			# 0x1

	lw	$3,8($2)
	lw	$7,12($16)
	li	$2,1			# 0x1
	sw	$7,68($3)
	lw	$8,8($16)
	sw	$2,224($3)
	li	$2,65536			# 0x10000
	sw	$8,64($3)
	ori	$2,$2,0x501c
	sw	$2,228($3)
	lw	$2,16($16)
	sw	$2,392($3)
	jal	av_set_pts_info
	lw	$7,8($16)

	lw	$3,20($16)
	lw	$8,8($18)
	li	$4,983040			# 0xf0000
	ori	$4,$4,0x4240
	multu	$3,$4
	lw	$2,64($8)
	mflo	$4
	move	$6,$2
	sra	$7,$2,31
	move	$3,$0
	move	$2,$0
	mfhi	$5
	sw	$2,3824($17)
	jal	__divdi3
	sw	$3,3828($17)

	move	$4,$0
	sw	$2,3832($17)
	j	$L87
	sw	$3,3836($17)

	.set	macro
	.set	reorder
	.end	wv_read_header
	.section	.text.wv_read_seek,"ax",@progbits
	.align	2
	.align	5
	.ent	wv_read_seek
	.type	wv_read_seek, @function
wv_read_seek:
	.frame	$sp,120,$31		# vars= 56, regs= 10/0, args= 24, gp= 0
	.mask	0xc0ff0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-120
	sll	$5,$5,2
	sw	$21,100($sp)
	sw	$20,96($sp)
	sw	$18,88($sp)
	sw	$31,116($sp)
	sw	$fp,112($sp)
	sw	$23,108($sp)
	sw	$22,104($sp)
	sw	$19,92($sp)
	sw	$17,84($sp)
	sw	$16,80($sp)
	addu	$5,$5,$4
	lw	$16,100($5)
	lw	$2,136($sp)
	move	$18,$4
	sw	$2,16($sp)
	move	$4,$16
	move	$20,$6
	move	$21,$7
	jal	av_index_search_timestamp
	lw	$17,12($18)

	bltz	$2,$L91
	move	$3,$2

	lw	$4,144($16)
	sll	$3,$3,3
	sll	$2,$2,5
	subu	$2,$2,$3
	addu	$2,$2,$4
	lw	$6,0($2)
	lw	$7,4($2)
	li	$3,1			# 0x1
	sw	$3,28($17)
	addiu	$4,$18,16
	jal	url_fseek
	sw	$0,16($sp)

	move	$2,$0
$L93:
	lw	$31,116($sp)
$L118:
	lw	$fp,112($sp)
	lw	$23,108($sp)
	lw	$22,104($sp)
	lw	$21,100($sp)
	lw	$20,96($sp)
	lw	$19,92($sp)
	lw	$18,88($sp)
	lw	$17,84($sp)
	lw	$16,80($sp)
	j	$31
	addiu	$sp,$sp,120

$L91:
	bltz	$21,$L93
	li	$2,-1			# 0xffffffffffffffff

	lw	$3,3836($18)
	slt	$2,$21,$3
	bne	$2,$0,$L116
	addiu	$fp,$18,16

	bne	$3,$21,$L93
	li	$2,-1			# 0xffffffffffffffff

	lw	$2,3832($18)
	sltu	$2,$20,$2
	beq	$2,$0,$L93
	li	$2,-1			# 0xffffffffffffffff

	addiu	$fp,$18,16
$L116:
	jal	url_ftell
	move	$4,$fp

	move	$22,$2
	move	$23,$3
	addiu	$19,$sp,24
$L113:
	move	$4,$18
$L117:
	jal	av_read_frame
	move	$5,$19

	bltz	$2,$L108
	move	$4,$19

	lw	$2,60($sp)
	lw	$16,24($sp)
	beq	$2,$0,$L102
	lw	$17,28($sp)

	jal	$2
	nop

$L102:
	slt	$2,$17,$21
	bne	$2,$0,$L113
	sltu	$3,$16,$20

	bne	$17,$21,$L93
	move	$2,$0

	bne	$3,$0,$L117
	move	$4,$18

	j	$L118
	lw	$31,116($sp)

$L108:
	move	$4,$fp
	move	$6,$22
	move	$7,$23
	jal	url_fseek
	sw	$0,16($sp)

	j	$L93
	li	$2,-1			# 0xffffffffffffffff

	.set	macro
	.set	reorder
	.end	wv_read_seek
	.globl	wv_demuxer
	.section	.rodata.str1.4
	.align	2
$LC8:
	.ascii	"wv\000"
	.align	2
$LC9:
	.ascii	"WavPack\000"
	.data
	.align	2
	.type	wv_demuxer, @object
	.size	wv_demuxer, 64
wv_demuxer:
	.word	$LC8
	.word	$LC9
	.word	56
	.word	wv_probe
	.word	wv_read_header
	.word	wv_read_packet
	.word	wv_read_close
	.word	wv_read_seek
	.space	32
	.rdata
	.align	2
	.type	wv_rates, @object
	.size	wv_rates, 64
wv_rates:
	.word	6000
	.word	8000
	.word	9600
	.word	11025
	.word	12000
	.word	16000
	.word	22050
	.word	24000
	.word	32000
	.word	44100
	.word	48000
	.word	64000
	.word	88200
	.word	96000
	.word	192000
	.word	-1
	.ident	"GCC: (GNU) 4.1.2"