demux_mpg.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 4,965 行 · 第 1/5 页

lbu	$3,0($2)
sw	$4,36($16)
sll	$17,$3,8
$L513:
sltu	$2,$4,$5
beq	$2,$0,$L516
nop

lw	$2,80($16)
addu	$2,$4,$2
addiu	$4,$4,1
lbu	$2,0($2)
sw	$4,36($16)
$L518:
or	$19,$2,$17
move	$16,$19
bltz	$19,$L623
lw	$17,16($20)

li	$2,262144			# 0x40000
slt	$2,$2,$19
beq	$2,$0,$L624
nop

lw	$2,28($17)
andi	$2,$2,0x4
beq	$2,$0,$L602
nop

$L523:
lw	$4,44($17)
lw	$2,36($17)
lw	$6,40($17)
addu	$2,$4,$2
subu	$2,$2,$6
addu	$5,$19,$2
slt	$3,$5,$4
beq	$3,$0,$L528
subu	$2,$4,$6

subu	$2,$5,$2
bltz	$2,$L528
nop

sw	$2,36($17)
move	$3,$2
$L524:
lw	$5,40($17)
sltu	$2,$3,$5
beq	$2,$0,$L535
addiu	$4,$3,1

lw	$2,80($17)
addu	$2,$3,$2
lbu	$3,0($2)
sw	$4,36($17)
sll	$16,$3,8
$L537:
sltu	$2,$4,$5
beq	$2,$0,$L540
nop

lw	$2,80($17)
addu	$2,$4,$2
addiu	$4,$4,1
lbu	$3,0($2)
sw	$4,36($17)
$L542:
subu	$2,$18,$19
or	$4,$3,$16
addiu	$2,$2,-8
sltu	$3,$2,$4
move	$19,$2
movz	$19,$4,$3
beq	$19,$0,$L604
li	$2,268435456			# 0x10000000

lw	$17,16($20)
ori	$22,$2,0x1
ori	$23,$2,0x2
ori	$fp,$2,0x4
$L546:
lw	$3,36($17)
lw	$2,40($17)
sltu	$2,$3,$2
beq	$2,$0,$L547
addiu	$4,$3,1

lw	$2,80($17)
addu	$2,$3,$2
lbu	$3,0($2)
sw	$4,36($17)
andi	$16,$3,0x00ff
$L549:
lw	$2,40($17)
sltu	$2,$4,$2
beq	$2,$0,$L552
addiu	$3,$4,1

lw	$2,80($17)
addu	$2,$4,$2
lbu	$2,0($2)
sw	$3,36($17)
$L554:
andi	$3,$2,0x00ff
addiu	$2,$3,80
andi	$2,$2,0x00ff
sltu	$2,$2,64
beq	$2,$0,$L555
nop

beq	$21,$0,$L555
li	$2,15			# 0xf

beq	$16,$2,$L562
addiu	$3,$3,-176

sltu	$2,$16,16
beq	$2,$0,$L566
li	$2,17			# 0x11

li	$2,2			# 0x2
beq	$16,$2,$L560
sltu	$2,$16,3

beq	$2,$0,$L567
sltu	$2,$16,5

li	$2,1			# 0x1
beq	$16,$2,$L625
sll	$2,$3,2

$L555:
lw	$3,36($17)
lw	$5,40($17)
sltu	$2,$3,$5
beq	$2,$0,$L568
addiu	$4,$3,1

lw	$2,80($17)
addu	$2,$3,$2
lbu	$3,0($2)
sw	$4,36($17)
sll	$16,$3,8
$L570:
sltu	$2,$4,$5
beq	$2,$0,$L573
nop

lw	$2,80($17)
addu	$2,$4,$2
addiu	$4,$4,1
lbu	$3,0($2)
sw	$4,36($17)
$L575:
or	$3,$3,$16
sltu	$2,$19,$3
move	$18,$19
movz	$18,$3,$2
lw	$17,16($20)
bltz	$18,$L626
move	$16,$18

$L578:
li	$2,262144			# 0x40000
slt	$2,$2,$18
bne	$2,$0,$L582
nop

blez	$18,$L628
subu	$2,$19,$18

$L607:
lw	$6,40($17)
j	$L610
lw	$5,36($17)

$L590:
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
blez	$16,$L608
sw	$4,36($17)

$L610:
subu	$2,$6,$5
move	$4,$17
bne	$2,$0,$L590
move	$3,$2

jal	stream_fill_buffer
nop

beq	$2,$0,$L608
nop

lw	$5,36($17)
lw	$6,40($17)
subu	$3,$6,$5
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
bgtz	$16,$L610
sw	$4,36($17)

$L608:
lw	$17,16($20)
$L581:
subu	$2,$19,$18
$L628:
addiu	$19,$2,-4
$L629:
bne	$19,$0,$L546
nop

$L545:
lw	$6,40($17)
lw	$5,36($17)
j	$L592
li	$16,4			# 0x4

$L595:
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
blez	$16,$L596
sw	$4,36($17)

$L592:
subu	$2,$6,$5
move	$4,$17
bne	$2,$0,$L595
move	$3,$2

jal	stream_fill_buffer
nop

beq	$2,$0,$L500
li	$2,1			# 0x1

lw	$5,36($17)
lw	$6,40($17)
j	$L595
subu	$3,$6,$5

$L622:
lw	$2,28($17)
andi	$2,$2,0x2
beq	$2,$0,$L500
move	$2,$0

lw	$4,44($17)
lw	$2,36($17)
lw	$6,40($17)
addu	$2,$4,$2
subu	$2,$2,$6
addu	$5,$16,$2
slt	$3,$5,$4
beq	$3,$0,$L497
nop

subu	$2,$4,$6
subu	$3,$5,$2
bltz	$3,$L497
nop

move	$2,$0
j	$L500
sw	$3,36($17)

$L599:
j	$L490
lw	$17,16($20)

$L624:
blez	$19,$L620
nop

$L602:
lw	$6,40($17)
j	$L609
lw	$5,36($17)

$L533:
slt	$2,$16,$3
movn	$3,$16,$2
addu	$4,$5,$3
subu	$16,$16,$3
move	$5,$4
blez	$16,$L627
sw	$4,36($17)

$L609:
subu	$2,$6,$5
move	$4,$17
bne	$2,$0,$L533
move	$3,$2

jal	stream_fill_buffer
nop

beq	$2,$0,$L603
nop

lw	$5,36($17)
lw	$6,40($17)
j	$L533
subu	$3,$6,$5

$L582:
lw	$2,28($17)
andi	$2,$2,0x4
beq	$2,$0,$L607
nop

$L580:
lw	$4,44($17)
lw	$2,36($17)
lw	$6,40($17)
addu	$2,$4,$2
subu	$2,$2,$6
addu	$5,$18,$2
slt	$3,$5,$4
beq	$3,$0,$L585
subu	$2,$4,$6

subu	$2,$5,$2
bltz	$2,$L585
nop

j	$L581
sw	$2,36($17)

$L573:
jal	stream_fill_buffer
move	$4,$17

bne	$2,$0,$L576
move	$18,$19

li	$3,-256			# 0xffffffffffffff00
or	$3,$3,$16
sltu	$2,$19,$3
movz	$18,$3,$2
lw	$17,16($20)
bgez	$18,$L578
move	$16,$18

$L626:
lw	$2,28($17)
andi	$2,$2,0x2
bne	$2,$0,$L580
subu	$2,$19,$18

j	$L629
addiu	$19,$2,-4

$L552:
jal	stream_fill_buffer
move	$4,$17

beq	$2,$0,$L605
nop

lw	$2,36($17)
lw	$3,80($17)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$2,0($3)
sw	$4,36($17)
j	$L554
lw	$17,16($20)

$L568:
jal	stream_fill_buffer
move	$4,$17

bne	$2,$0,$L571
nop

lw	$4,36($17)
lw	$5,40($17)
j	$L570
li	$16,-65536			# 0xffffffffffff0000

$L547:
jal	stream_fill_buffer
move	$4,$17

bne	$2,$0,$L550
nop

lw	$17,16($20)
move	$16,$0
j	$L549
lw	$4,36($17)

$L550:
lw	$3,36($17)
lw	$2,80($17)
addiu	$4,$3,1
addu	$2,$2,$3
lbu	$5,0($2)
sw	$4,36($17)
lw	$17,16($20)
andi	$16,$5,0x00ff
j	$L549
lw	$4,36($17)

$L605:
j	$L555
lw	$17,16($20)

$L576:
lw	$2,36($17)
lw	$3,80($17)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$3,0($3)
j	$L575
sw	$4,36($17)

$L571:
lw	$4,36($17)
lw	$2,80($17)
lw	$5,40($17)
addu	$2,$2,$4
lbu	$3,0($2)
addiu	$4,$4,1
sll	$16,$3,8
j	$L570
sw	$4,36($17)

$L585:
jal	stream_seek_long
move	$4,$17

j	$L581
lw	$17,16($20)

$L562:
sll	$3,$3,2
li	$2,1093926912			# 0x41340000
addu	$3,$3,$21
ori	$2,$2,0x504d
j	$L555
sw	$2,16($3)

$L566:
beq	$16,$2,$L562
sltu	$2,$16,17

bne	$2,$0,$L563
sll	$2,$3,2

li	$2,27			# 0x1b
beq	$16,$2,$L564
li	$2,129			# 0x81

bne	$16,$2,$L555
sll	$2,$3,2

addu	$2,$2,$21
li	$3,8192			# 0x2000
j	$L555
sw	$3,16($2)

$L596:
j	$L500
li	$2,1			# 0x1

$L627:
lw	$17,16($20)
j	$L524
lw	$3,36($17)

$L563:
addu	$2,$2,$21
j	$L555
sw	$fp,16($2)

$L567:
beq	$2,$0,$L555
sll	$2,$3,2

addu	$2,$2,$21
li	$3,80			# 0x50
j	$L555
sw	$3,16($2)

$L560:
sll	$2,$3,2
addu	$2,$2,$21
j	$L555
sw	$23,16($2)

$L540:
jal	stream_fill_buffer
move	$4,$17

bne	$2,$0,$L543
nop

j	$L542
li	$3,-256			# 0xffffffffffffff00

$L535:
jal	stream_fill_buffer
move	$4,$17

bne	$2,$0,$L538
nop

lw	$4,36($17)
lw	$5,40($17)
j	$L537
li	$16,-65536			# 0xffffffffffff0000

$L516:
jal	stream_fill_buffer
move	$4,$16

bne	$2,$0,$L519
nop

j	$L518
li	$2,-256			# 0xffffffffffffff00

$L511:
jal	stream_fill_buffer
move	$4,$16

bne	$2,$0,$L514
nop

lw	$4,36($16)
lw	$5,40($16)
j	$L513
li	$17,-65536			# 0xffffffffffff0000

$L603:
lw	$17,16($20)
$L620:
j	$L524
lw	$3,36($17)

$L497:
jal	stream_seek_long
move	$4,$17

j	$L500
move	$2,$0

$L623:
lw	$2,28($17)
andi	$2,$2,0x2
bne	$2,$0,$L523
nop

j	$L524
lw	$3,36($17)

$L543:
lw	$2,36($17)
lw	$3,80($17)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$3,0($3)
j	$L542
sw	$4,36($17)

$L538:
lw	$4,36($17)
lw	$2,80($17)
lw	$5,40($17)
addu	$2,$2,$4
lbu	$3,0($2)
addiu	$4,$4,1
sll	$16,$3,8
j	$L537
sw	$4,36($17)

$L519:
lw	$2,36($16)
lw	$3,80($16)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$2,0($3)
j	$L518
sw	$4,36($16)

$L514:
lw	$4,36($16)
lw	$2,80($16)
lw	$5,40($16)
addu	$2,$2,$4
lbu	$3,0($2)
addiu	$4,$4,1
sll	$17,$3,8
j	$L513
sw	$4,36($16)

$L528:
jal	stream_seek_long
move	$4,$17

lw	$17,16($20)
j	$L524
lw	$3,36($17)

$L625:
addu	$2,$2,$21
j	$L555
sw	$22,16($2)

$L564:
sll	$2,$3,2
li	$3,268435456			# 0x10000000
addu	$2,$2,$21
ori	$3,$3,0x5
j	$L555
sw	$3,16($2)

$L604:
j	$L545
lw	$17,16($20)

.set	macro
.set	reorder
.end	parse_psm
.section	.rodata.str1.4
.align	2
$LC13:
.ascii	"MPEG packet stats: p100: %d  p101: %d p1B6: %d p12x: %d "
.ascii	"sli: %d a: %d b: %d c: %d idr: %d sps: %d pps: %d PES: %"
.ascii	"d  MP3: %d, synced: %d\012\000"
.align	2
$LC14:
.ascii	"MPEG: Missing video stream!? Contact the author, it may "
.ascii	"be a bug :(\012\000"
.align	2
$LC15:
.ascii	"Not MPEG System Stream format... (maybe Transport Stream"
.ascii	"?)\012\000"
.section	.rodata.cst4
.align	2
$LC10:
.word	-1082130432
.align	2
$LC11:
.word	1056964608
.align	2
$LC12:
.word	1073741824
.section	.text.demux_mpg_probe,"ax",@progbits
.align	2
.align	5
.ent	demux_mpg_probe
.type	demux_mpg_probe, @function
demux_mpg_probe:
.frame	$sp,120,$31		# vars= 8, regs= 10/0, args= 72, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-120
sw	$20,96($sp)
sw	$31,116($sp)
sw	$fp,112($sp)
sw	$23,108($sp)
sw	$22,104($sp)
sw	$21,100($sp)
sw	$19,92($sp)
sw	$18,88($sp)
sw	$17,84($sp)
sw	$16,80($sp)
lw	$16,16($4)
move	$20,$4
lw	$2,44($16)
lw	$4,36($16)
lw	$6,40($16)
addu	$2,$4,$2
subu	$2,$2,$6
sltu	$3,$4,$6
beq	$3,$0,$L631
sw	$2,72($sp)

lw	$2,80($16)
addiu	$5,$4,1
addu	$2,$4,$2
lbu	$3,0($2)
sw	$5,36($16)
sll	$19,$3,8
$L633:
sltu	$2,$5,$6
beq	$2,$0,$L636
nop

lw	$2,80($16)
addu	$2,$5,$2
lbu	$3,0($2)
addiu	$5,$5,1
move	$18,$3
sw	$5,36($16)
$L638:
sltu	$2,$5,$6
beq	$2,$0,$L641
nop

lw	$2,80($16)
addu	$2,$5,$2
lbu	$3,0($2)
addiu	$5,$5,1
move	$17,$3
sw	$5,36($16)
$L643:
sltu	$2,$5,$6
beq	$2,$0,$L646
nop

lw	$2,80($16)
addu	$2,$5,$2
addiu	$5,$5,1
lbu	$3,0($2)
sw	$5,36($16)
$L648:
or	$2,$19,$18
sll	$2,$2,8
or	$2,$2,$17
sll	$2,$2,8
or	$4,$2,$3
li	$3,480			# 0x1e0
beq	$4,$3,$L651
li	$2,448			# 0x1c0

beq	$4,$2,$L651
nop

$L653:
lw	$6,16($20)
lw	$4,72($sp)
lw	$3,44($6)
slt	$2,$4,$3
beq	$2,$0,$L749
lw	$5,72($sp)

$L738:
lw	$2,40($6)
subu	$2,$3,$2
subu	$2,$4,$2
bltz	$2,$L749
lw	$5,72($sp)

sw	$2,36($6)
$L664:
lui	$2,%hi(num_elementary_packetsPES)
lui	$3,%hi(num_h264_slice)
sw	$0,%lo(num_elementary_packetsPES)($2)
lui	$2,%hi(num_h264_dpa)
sw	$0,%lo(num_h264_slice)($3)
sw	$0,%lo(num_h264_dpa)($2)
lui	$3,%hi(num_h264_dpb)
lui	$2,%hi(num_h264_dpc)
lw	$4,56($20)
lui	$18,%hi(num_elementary_packets100)
lui	$19,%hi(num_elementary_packets101)
lui	$23,%hi(num_elementary_packets1B6)
lui	$fp,%hi(num_elementary_packets12x)
lui	$21,%hi(num_h264_sps)
lui	$17,%hi(num_mp3audio_packets)
sw	$0,%lo(num_h264_dpb)($3)
sw	$0,%lo(num_h264_dpc)($2)
lui	$3,%hi(num_h264_idr)
lui	$2,%hi(num_h264_pps)
sw	$0,%lo(num_elementary_packets100)($18)
sw	$0,%lo(num_elementary_packets101)($19)
sw	$0,%lo(num_elementary_packets1B6)($23)
sw	$0,%lo(num_elementary_packets12x)($fp)
sw	$0,%lo(num_h264_idr)($3)
sw	$0,%lo(num_h264_sps)($21)
sw	$0,%lo(num_h264_pps)($2)
sw	$0,%lo(num_mp3audio_packets)($17)
jal	ds_fill_buffer
move	$22,$6

beq	$2,$0,$L665
lui	$4,%hi(num_h264_slice)

li	$4,1			# 0x1
jal	uc_calloc
li	$5,1300			# 0x514

beq	$2,$0,$L728
move	$16,$2

lui	$2,%hi($LC10)
lw	$17,%lo($LC10)($2)
lw	$3,48($20)
sw	$16,2248($20)
sw	$17,0($16)
beq	$3,$0,$L728
sw	$17,4($16)

lw	$6,16($20)
lw	$2,24($6)
sltu	$2,$2,2
bne	$2,$0,$L734
nop

$L667:
li	$16,2			# 0x2
$L708:
lw	$3,44($6)
lw	$4,72($sp)
slt	$2,$4,$3
beq	$2,$0,$L721
nop

$L736:
lw	$2,40($6)
subu	$2,$3,$2
subu	$2,$4,$2
bltz	$2,$L721
nop

sw	$2,36($6)
$L724:
move	$2,$16
lw	$31,116($sp)
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

$L665:
lui	$6,%hi(num_h264_dpa)
lw	$9,%lo(num_h264_slice)($4)
lw	$10,%lo(num_h264_dpa)($6)
lui	$4,%hi(num_h264_dpb)
lui	$6,%hi(num_h264_idr)
lw	$2,%lo(num_elementary_packets101)($19)
lw	$11,%lo(num_h264_dpb)($4)
lw	$12,%lo(num_h264_idr)($6)
lui	$4,%hi(num_h264_pps)
lui	$6,%hi(num_elementary_packetsPES)
lw	$16,36($20)
lw	$3,%lo(num_elementary_packets1B6)($23)
lw	$7,%lo(num_elementary_packets100)($18)
lw	$8,%lo(num_elementary_packets12x)($fp)
lw	$15,%lo(num_mp3audio_packets)($17)
lw	$13,%lo(num_h264_pps)($4)
lw	$14,%lo(num_elementary_packetsPES)($6)
lui	$6,%hi($LC13)
sw	$0,%lo(num_h264_sps)($21)
addiu	$6,$6,%lo($LC13)
sw	$2,16($sp)
li	$4,7			# 0x7
lui	$2,%hi(num_h264_dpc)
li	$5,6			# 0x6
sw	$3,20($sp)
sw	$0,%lo(num_h264_dpc)($2)
sw	$8,24($sp)
sw	$9,28($sp)
sw	$10,32($sp)
sw	$11,36($sp)
sw	$12,44($sp)
sw	$13,52($sp)
sw	$14,56($sp)
sw	$15,60($sp)
sw	$16,64($sp)
sw	$0,40($sp)
jal	mp_msg
sw	$0,48($sp)

lw	$3,%lo(num_mp3audio_packets)($17)
slt	$2,$3,51
beq	$2,$0,$L735
lw	$4,%lo(num_elementary_packets100)($18)

$L689:
lw	$4,%lo(num_elementary_packets100)($18)
$L751:
slt	$2,$4,2
bne	$2,$0,$L694
lw	$3,%lo(num_elementary_packets101)($19)

slt	$2,$3,2
bne	$2,$0,$L694
subu	$3,$3,$4

slt	$2,$3,-8
beq	$2,$0,$L697
slt	$2,$3,8

li	$2,-8			# 0xfffffffffffffff8
subu	$2,$2,$3
slt	$2,$2,16
beq	$2,$0,$L750
lw	$5,%lo(num_elementary_packets1B6)($23)

lui	$6,%hi(num_elementary_packetsPES)
$L752:
lw	$3,%lo(num_elementary_packetsPES)($6)
slt	$2,$3,4
bne	$2,$0,$L700
addiu	$2,$4,-4

slt	$2,$3,$2
beq	$2,$0,$L724
move	$16,$0

$L700:
lw	$6,16($20)
lw	$4,72($sp)
lw	$3,44($6)
slt	$2,$4,$3
bne	$2,$0,$L736
li	$16,1			# 0x1

$L721:
lw	$5,72($sp)
jal	stream_seek_long
move	$4,$6

move	$2,$16
lw	$31,116($sp)
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

$L735:
sll	$2,$4,1
slt	$2,$2,$3
beq	$2,$0,$L689
lw	$2,%lo(num_elementary_packets101)($19)

subu	$2,$4,$2
subu	$4,$0,$2
slt	$3,$2,0
movn	$2,$4,$3
slt	$2,$2,3
bne	$2,$0,$L751
lw	$4,%lo(num_elementary_packets100)($18)

j	$L724
move	$16,$0

$L728:
j	$L667
lw	$6,16($20)

$L651:
lw	$16,16($20)
lw	$3,36($16)
lw	$4,40($16)
sltu	$2,$3,$4
beq	$2,$0,$L737
nop

$L733:
addiu	$3,$3,1
sw	$3,36($16)
$L656:
sltu	$2,$3,$4
beq	$2,$0,$L658
addiu	$3,$3,1

lw	$6,16($20)
sw	$3,36($16)
lw	$4,72($sp)
lw	$3,44($6)