tta.s

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」· S 代码 · 共 531 行

.file	1 "tta.c"
.section .mdebug.abi32
.previous
.section	.text.tta_probe,"ax",@progbits
.align	2
.align	5
.ent	tta_probe
.type	tta_probe, @function
tta_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	$4,4($4)
li	$2,84			# 0x54
lbu	$3,0($4)
beq	$3,$2,$L10
move	$5,$0

$L7:
j	$31
move	$2,$5

$L10:
lbu	$2,1($4)
bne	$2,$3,$L7
nop

lbu	$3,2($4)
li	$2,65			# 0x41
bne	$3,$2,$L7
nop

lbu	$3,3($4)
li	$2,49			# 0x31
bne	$3,$2,$L7
nop

j	$L7
li	$5,80			# 0x50

.set	macro
.set	reorder
.end	tta_probe
.section	.text.tta_read_seek,"ax",@progbits
.align	2
.align	5
.ent	tta_read_seek
.type	tta_read_seek, @function
tta_read_seek:
.frame	$sp,40,$31		# vars= 0, regs= 4/0, args= 24, gp= 0
.mask	0x80070000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-40
sll	$5,$5,2
sw	$16,24($sp)
addu	$5,$5,$4
sw	$31,36($sp)
sw	$18,32($sp)
sw	$17,28($sp)
lw	$17,100($5)
lw	$2,56($sp)
move	$16,$4
sw	$2,16($sp)
move	$4,$17
jal	av_index_search_timestamp
lw	$18,12($16)

sll	$3,$2,5
move	$5,$2
sll	$2,$2,3
subu	$3,$3,$2
addiu	$4,$16,16
bltz	$5,$L14
li	$2,-1			# 0xffffffffffffffff

lw	$2,144($17)
sw	$5,4($18)
addu	$2,$3,$2
lw	$6,0($2)
lw	$7,4($2)
jal	url_fseek
sw	$0,16($sp)

move	$2,$0
$L14:
lw	$31,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
j	$31
addiu	$sp,$sp,40

.set	macro
.set	reorder
.end	tta_read_seek
.section	.text.tta_read_packet,"ax",@progbits
.align	2
.align	5
.ent	tta_read_packet
.type	tta_read_packet, @function
tta_read_packet:
.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	$18,24($sp)
sw	$31,28($sp)
sw	$17,20($sp)
sw	$16,16($sp)
move	$7,$4
lw	$16,12($7)
addiu	$4,$4,16
lw	$3,4($16)
lw	$8,0($16)
sll	$6,$3,5
sll	$2,$3,3
slt	$3,$8,$3
li	$9,-1			# 0xffffffffffffffff
subu	$6,$6,$2
lw	$17,100($7)
bne	$3,$0,$L19
move	$18,$5

lw	$2,144($17)
addu	$2,$6,$2
lw	$6,16($2)
jal	av_get_packet
sra	$6,$6,2

lw	$3,4($16)
move	$9,$2
sll	$4,$3,3
sll	$2,$3,5
lw	$6,144($17)
subu	$2,$2,$4
addu	$2,$2,$6
lw	$4,8($2)
lw	$5,12($2)
addiu	$3,$3,1
sw	$4,8($18)
sw	$5,12($18)
sw	$3,4($16)
$L19:
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$9
j	$31
addiu	$sp,$sp,32

.set	macro
.set	reorder
.end	tta_read_packet
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"TTA1\000"
.align	2
$LC1:
.ascii	"strlen(s)==4\000"
.align	2
$LC2:
.ascii	"../libavutil/common.h\000"
.align	2
$LC3:
.ascii	"nonsense samplerate\012\000"
.align	2
$LC4:
.ascii	"nonsense datalen\012\000"
.align	2
$LC5:
.ascii	"totalframes too large\012\000"
.align	2
$LC6:
.ascii	"extradata_size too large\012\000"
.section	.text.tta_read_header,"ax",@progbits
.align	2
.align	5
.ent	tta_read_header
.type	tta_read_header, @function
tta_read_header:
.frame	$sp,96,$31		# vars= 16, regs= 10/0, args= 40, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-96
sw	$4,96($sp)
lw	$2,96($sp)
sw	$31,92($sp)
sw	$21,76($sp)
sw	$18,64($sp)
sw	$16,56($sp)
sw	$fp,88($sp)
sw	$23,84($sp)
sw	$22,80($sp)
sw	$20,72($sp)
sw	$19,68($sp)
sw	$17,60($sp)
lw	$2,12($2)
addiu	$21,$4,16
move	$4,$21
lui	$16,%hi($LC0)
jal	get_le32
sw	$2,52($sp)

addiu	$4,$16,%lo($LC0)
jal	strlen
move	$18,$2

li	$3,4			# 0x4
bne	$2,$3,$L44
lb	$4,%lo($LC0)($16)

addiu	$2,$16,%lo($LC0)
lb	$6,3($2)
lb	$5,1($2)
lb	$3,2($2)
sll	$5,$5,8
sll	$3,$3,16
sll	$6,$6,24
addu	$4,$4,$5
addu	$3,$3,$6
addu	$4,$4,$3
beq	$18,$4,$L45
li	$2,-1			# 0xffffffffffffffff

$L26:
lw	$31,92($sp)
lw	$fp,88($sp)
lw	$23,84($sp)
lw	$22,80($sp)
lw	$21,76($sp)
lw	$20,72($sp)
lw	$19,68($sp)
lw	$18,64($sp)
lw	$17,60($sp)
lw	$16,56($sp)
j	$31
addiu	$sp,$sp,96

$L45:
li	$6,2			# 0x2
move	$7,$0
jal	url_fskip
move	$4,$21

jal	get_le16
move	$4,$21

move	$4,$21
jal	get_le16
sw	$2,48($sp)

move	$4,$21
jal	get_le32
sw	$2,44($sp)

addiu	$3,$2,-1
sw	$2,40($sp)
li	$2,983040			# 0xf0000
ori	$2,$2,0x4240
sltu	$3,$3,$2
beq	$3,$0,$L46
lw	$4,96($sp)

jal	get_le32
move	$4,$21

bltz	$2,$L47
move	$16,$2

move	$4,$21
li	$6,4			# 0x4
jal	url_fskip
move	$7,$0

lw	$3,40($sp)
li	$2,1121910784			# 0x42df0000
sll	$4,$3,8
ori	$2,$2,0x9bb1
mult	$4,$2
sra	$4,$4,31
mfhi	$2
sra	$2,$2,6
subu	$fp,$2,$4
div	$0,$16,$fp
teq	$fp,$0,7
lw	$2,52($sp)
sw	$0,4($2)
li	$2,1073676288			# 0x3fff0000
ori	$2,$2,0xffff
mfhi	$3
mflo	$5
sltu	$3,$0,$3
addu	$5,$5,$3
lw	$3,52($sp)
sltu	$2,$5,$2
beq	$2,$0,$L48
sw	$5,0($3)

lw	$4,96($sp)
jal	av_new_stream
move	$5,$0

beq	$2,$0,$L49
move	$23,$2

lw	$7,40($sp)
move	$4,$2
li	$5,64			# 0x40
jal	av_set_pts_info
li	$6,1			# 0x1

sra	$2,$16,31
sw	$2,100($23)
move	$3,$0
move	$2,$0
sw	$2,88($23)
sw	$3,92($23)
sw	$16,96($23)
jal	url_ftell
move	$4,$21

move	$9,$3
lw	$3,52($sp)
move	$8,$2
lw	$2,0($3)
blez	$2,$L35
sll	$2,$2,2

addiu	$4,$2,4
sra	$3,$2,31
sltu	$6,$4,$2
addu	$5,$6,$3
addu	$2,$8,$4
sltu	$6,$2,$8
addu	$3,$9,$5
addu	$3,$6,$3
move	$18,$2
move	$19,$3
move	$22,$0
move	$20,$0
$L37:
jal	get_le32
move	$4,$21

move	$16,$2
sra	$2,$20,31
move	$6,$18
move	$7,$19
move	$4,$23
sw	$2,20($sp)
li	$2,1			# 0x1
sw	$20,16($sp)
sw	$16,24($sp)
sw	$0,28($sp)
jal	av_add_index_entry
sw	$2,32($sp)

lw	$4,52($sp)
addu	$2,$18,$16
lw	$5,0($4)
move	$17,$0
sltu	$4,$2,$18
addu	$3,$19,$17
addiu	$22,$22,1
addu	$3,$4,$3
slt	$5,$22,$5
move	$18,$2
move	$19,$3
bne	$5,$0,$L37
addu	$20,$20,$fp

$L35:
move	$4,$21
li	$6,4			# 0x4
jal	url_fskip
move	$7,$0

lw	$16,8($23)
li	$2,65536			# 0x10000
li	$3,1			# 0x1
ori	$2,$2,0x5019
lw	$4,44($sp)
sw	$3,224($16)
sw	$2,228($16)
lw	$3,40($sp)
lw	$2,48($sp)
sw	$4,392($16)
sw	$2,68($16)
move	$4,$21
jal	url_ftell
sw	$3,64($16)

lw	$18,8($23)
sw	$2,28($16)
lw	$2,28($18)
addiu	$4,$2,8
sltu	$2,$2,$4
beq	$2,$0,$L50
lui	$6,%hi($LC6)

jal	av_mallocz
nop

sw	$2,24($18)
move	$6,$0
move	$7,$0
move	$4,$21
jal	url_fseek
sw	$0,16($sp)

lw	$7,8($23)
move	$4,$21
lw	$6,28($7)
jal	get_buffer
lw	$5,24($7)

j	$L26
move	$2,$0

$L48:
lw	$4,96($sp)
lui	$6,%hi($LC5)
addiu	$6,$6,%lo($LC5)
jal	av_log
move	$5,$0

lw	$31,92($sp)
lw	$fp,88($sp)
lw	$23,84($sp)
lw	$22,80($sp)
lw	$21,76($sp)
lw	$20,72($sp)
lw	$19,68($sp)
lw	$18,64($sp)
lw	$17,60($sp)
lw	$16,56($sp)
li	$2,-1			# 0xffffffffffffffff
j	$31
addiu	$sp,$sp,96

$L49:
j	$L26
li	$2,-12			# 0xfffffffffffffff4

$L46:
lui	$6,%hi($LC3)
addiu	$6,$6,%lo($LC3)
jal	av_log
move	$5,$0

j	$L26
li	$2,-1			# 0xffffffffffffffff

$L44:
lui	$4,%hi($LC1)
lui	$5,%hi($LC2)
lui	$7,%hi(__PRETTY_FUNCTION__.3735)
addiu	$4,$4,%lo($LC1)
addiu	$5,$5,%lo($LC2)
addiu	$7,$7,%lo(__PRETTY_FUNCTION__.3735)
jal	__assert_fail
li	$6,211			# 0xd3

$L50:
lw	$4,96($sp)
addiu	$6,$6,%lo($LC6)
jal	av_log
move	$5,$0

j	$L26
li	$2,-1			# 0xffffffffffffffff

$L47:
lw	$4,96($sp)
lui	$6,%hi($LC4)
addiu	$6,$6,%lo($LC4)
jal	av_log
move	$5,$0

j	$L26
li	$2,-1			# 0xffffffffffffffff

.set	macro
.set	reorder
.end	tta_read_header
.globl	tta_demuxer
.section	.rodata.str1.4
.align	2
$LC7:
.ascii	"tta\000"
.align	2
$LC8:
.ascii	"true-audio\000"
.data
.align	2
.type	tta_demuxer, @object
.size	tta_demuxer, 64
tta_demuxer:
.word	$LC7
.word	$LC8
.word	8
.word	tta_probe
.word	tta_read_header
.word	tta_read_packet
.word	0
.word	tta_read_seek
.space	8
.word	$LC7
.space	20
.rdata
.align	2
.type	__PRETTY_FUNCTION__.3735, @object
.size	__PRETTY_FUNCTION__.3735, 14
__PRETTY_FUNCTION__.3735:
.ascii	"ff_get_fourcc\000"
.ident	"GCC: (GNU) 4.1.2"