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

slt	$2,$4,$3
bne	$2,$0,$L738
lw	$5,72($sp)

$L749:
jal	stream_seek_long
move	$4,$6

j	$L664
lw	$6,16($20)

$L697:
bne	$2,$0,$L752
lui	$6,%hi(num_elementary_packetsPES)

$L694:
lw	$5,%lo(num_elementary_packets1B6)($23)
$L750:
slt	$2,$5,4
bne	$2,$0,$L732
lw	$3,%lo(num_elementary_packets12x)($fp)

blez	$3,$L732
lui	$6,%hi(num_elementary_packetsPES)

lw	$2,%lo(num_elementary_packetsPES)($6)
bne	$2,$0,$L732
slt	$2,$3,$4

beq	$2,$0,$L739
nop

$L732:
lw	$3,36($20)
lui	$4,%hi(num_h264_slice)
$L754:
lw	$2,%lo(num_h264_slice)($4)
slt	$2,$2,4
bne	$2,$0,$L740
lui	$6,%hi(num_h264_dpa)

lui	$4,%hi(num_h264_pps)
$L748:
lw	$2,%lo(num_h264_pps)($4)
blez	$2,$L711
lui	$6,%hi(num_h264_idr)

lw	$2,%lo(num_h264_idr)($6)
blez	$2,$L753
li	$2,2			# 0x2

bne	$5,$0,$L753
lui	$4,%hi(num_elementary_packetsPES)

lw	$2,%lo(num_elementary_packetsPES)($4)
beq	$2,$0,$L741
slt	$2,$3,2

$L711:
li	$2,2			# 0x2
$L753:
beq	$3,$2,$L742
li	$4,5			# 0x5

lui	$6,%hi($LC15)
addiu	$6,$6,%lo($LC15)
jal	mp_msg
li	$5,6			# 0x6

lw	$6,16($20)
j	$L708
move	$16,$0

$L646:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L743
nop

lw	$3,36($16)
lw	$2,80($16)
addiu	$5,$3,1
addu	$2,$2,$3
lbu	$4,0($2)
sw	$5,36($16)
j	$L648
move	$3,$4

$L641:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L744
nop

lw	$5,36($16)
lw	$2,80($16)
lw	$6,40($16)
addu	$2,$2,$5
lbu	$3,0($2)
addiu	$5,$5,1
move	$17,$3
j	$L643
sw	$5,36($16)

$L636:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L745
nop

lw	$5,36($16)
lw	$2,80($16)
lw	$6,40($16)
addu	$2,$2,$5
lbu	$3,0($2)
addiu	$5,$5,1
move	$18,$3
j	$L638
sw	$5,36($16)

$L631:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L746
nop

lw	$5,36($16)
lw	$2,80($16)
lw	$6,40($16)
addu	$2,$2,$5
lbu	$3,0($2)
addiu	$5,$5,1
sll	$19,$3,8
j	$L633
sw	$5,36($16)

$L746:
lw	$5,36($16)
lw	$6,40($16)
j	$L633
li	$19,-65536			# 0xffffffffffff0000

$L745:
lw	$5,36($16)
lw	$6,40($16)
j	$L638
li	$18,-256			# 0xffffffffffffff00

$L744:
lw	$5,36($16)
lw	$6,40($16)
j	$L643
li	$17,-256			# 0xffffffffffffff00

$L743:
j	$L648
li	$3,-256			# 0xffffffffffffff00

$L737:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L726
nop

lw	$3,36($16)
j	$L733
lw	$4,40($16)

$L740:
lw	$2,%lo(num_h264_dpa)($6)
slt	$2,$2,4
bne	$2,$0,$L753
li	$2,2			# 0x2

lui	$4,%hi(num_h264_dpb)
lw	$2,%lo(num_h264_dpb)($4)
slt	$2,$2,4
bne	$2,$0,$L753
li	$2,2			# 0x2

lui	$6,%hi(num_h264_dpc)
lw	$2,%lo(num_h264_dpc)($6)
slt	$2,$2,4
bne	$2,$0,$L753
li	$2,2			# 0x2

j	$L748
lui	$4,%hi(num_h264_pps)

$L658:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L653
nop

lw	$2,36($16)
addiu	$2,$2,1
j	$L653
sw	$2,36($16)

$L742:
lui	$6,%hi($LC14)
addiu	$6,$6,%lo($LC14)
jal	mp_msg
li	$5,1			# 0x1

lw	$6,16($20)
j	$L708
move	$16,$0

$L726:
lw	$3,36($16)
j	$L656
lw	$4,40($16)

$L734:
lw	$5,8($20)
lw	$2,12($20)
beq	$5,$2,$L667
move	$4,$20

lw	$2,44($22)
lw	$3,36($22)
lw	$6,40($22)
addu	$2,$2,$3
jal	read_first_mpeg_pts_at_position
subu	$18,$2,$6

move	$4,$2
move	$5,$17
jal	__nesf2
move	$19,$2

bne	$2,$0,$L747
move	$4,$20

$L672:
lw	$2,16($20)
lw	$3,52($20)
lw	$4,56($20)
sw	$0,56($2)
sw	$0,28($4)
sw	$0,28($3)
lw	$3,44($22)
slt	$2,$18,$3
beq	$2,$0,$L685
nop

lw	$2,40($22)
subu	$2,$3,$2
subu	$2,$18,$2
bltz	$2,$L685
nop

sw	$2,36($22)
$L688:
jal	ds_fill_buffer
li	$16,2			# 0x2

j	$L708
lw	$6,16($20)

$L739:
lw	$3,36($20)
slt	$2,$3,2
beq	$2,$0,$L754
lui	$4,%hi(num_h264_slice)

lw	$6,16($20)
j	$L708
li	$16,27			# 0x1b

$L741:
beq	$2,$0,$L753
li	$2,2			# 0x2

lw	$6,16($20)
j	$L708
li	$16,30			# 0x1e

$L685:
move	$4,$22
jal	stream_seek_long
move	$5,$18

j	$L688
lw	$4,56($20)

$L747:
lw	$2,12($20)
lw	$3,8($20)
addu	$2,$2,$3
srl	$5,$2,31
addu	$5,$5,$2
jal	read_first_mpeg_pts_at_position
sra	$5,$5,1

move	$4,$2
move	$5,$17
jal	__nesf2
move	$21,$2

beq	$2,$0,$L672
li	$5,-524288			# 0xfffffffffff80000

lw	$2,12($20)
ori	$5,$5,0x5ee0
addu	$5,$2,$5
jal	read_first_mpeg_pts_at_position
move	$4,$20

move	$4,$2
move	$5,$17
jal	__nesf2
move	$23,$2

beq	$2,$0,$L672
move	$5,$19

jal	__subsf3
move	$4,$21

move	$4,$2
move	$5,$0
jal	__nesf2
move	$17,$2

beq	$2,$0,$L672
move	$5,$21

jal	__subsf3
move	$4,$23

move	$4,$2
jal	__divsf3
move	$5,$17

move	$17,$2
lui	$2,%hi($LC11)
lw	$5,%lo($LC11)($2)
jal	__gtsf2
move	$4,$17

blez	$2,$L672
lui	$2,%hi($LC12)

lw	$5,%lo($LC12)($2)
jal	__ltsf2
move	$4,$17

bgez	$2,$L672
move	$4,$23

sw	$19,4($16)
jal	__subsf3
move	$5,$19

li	$3,1			# 0x1
sw	$3,12($16)
j	$L672
sw	$2,8($16)

.set	macro
.set	reorder
.end	demux_mpg_probe
.section	.text.demux_mpg_pes_probe,"ax",@progbits
.align	2
.align	5
.ent	demux_mpg_pes_probe
.type	demux_mpg_pes_probe, @function
demux_mpg_pes_probe:
.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
li	$2,3			# 0x3
sw	$31,16($sp)
jal	demux_mpg_probe
sw	$2,36($4)

xori	$3,$2,0x2
lw	$31,16($sp)
li	$2,41			# 0x29
movn	$2,$0,$3
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	demux_mpg_pes_probe
.section	.text.read_mpeg_timestamp,"ax",@progbits
.align	2
.align	5
.ent	read_mpeg_timestamp
.type	read_mpeg_timestamp, @function
read_mpeg_timestamp:
.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	$16,16($sp)
sw	$31,36($sp)
sw	$19,28($sp)
sw	$18,24($sp)
sw	$17,20($sp)
lw	$3,36($4)
lw	$6,40($4)
move	$16,$4
sltu	$2,$3,$6
beq	$2,$0,$L761
move	$20,$5

lw	$2,80($4)
addiu	$4,$3,1
addu	$2,$3,$2
lbu	$3,0($2)
sw	$4,36($16)
sll	$19,$3,8
$L763:
sltu	$2,$4,$6
beq	$2,$0,$L766
nop

lw	$2,80($16)
addu	$2,$4,$2
addiu	$4,$4,1
lbu	$18,0($2)
sw	$4,36($16)
$L768:
sltu	$2,$4,$6
beq	$2,$0,$L771
nop

lw	$2,80($16)
addu	$2,$4,$2
lbu	$3,0($2)
addiu	$4,$4,1
sll	$17,$3,8
sw	$4,36($16)
$L773:
sltu	$2,$4,$6
beq	$2,$0,$L776
nop

lw	$2,80($16)
addu	$2,$4,$2
addiu	$4,$4,1
lbu	$5,0($2)
sw	$4,36($16)
$L778:
andi	$2,$20,0x1
beq	$2,$0,$L792
lui	$3,%hi(mpeg_pts_error)

or	$3,$18,$19
andi	$2,$3,0x1
bne	$2,$0,$L787
or	$4,$5,$17

$L781:
lui	$3,%hi(mpeg_pts_error)
$L792:
lw	$2,%lo(mpeg_pts_error)($3)
move	$4,$0
addiu	$2,$2,1
sw	$2,%lo(mpeg_pts_error)($3)
move	$5,$0
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,$4
move	$3,$5
j	$31
addiu	$sp,$sp,40

$L787:
andi	$2,$4,0x1
beq	$2,$0,$L781
sra	$2,$20,1

srl	$6,$3,1
andi	$2,$2,0x7
move	$3,$0
srl	$8,$2,2
sll	$3,$3,30
srl	$4,$4,1
move	$5,$0
or	$3,$8,$3
sll	$2,$2,30
or	$2,$2,$4
or	$3,$3,$5
sll	$6,$6,15
move	$7,$0
or	$4,$6,$2
or	$5,$7,$3
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,$4
move	$3,$5
j	$31
addiu	$sp,$sp,40

$L776:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L788
nop

lw	$2,36($16)
lw	$3,80($16)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$5,0($3)
j	$L778
sw	$4,36($16)

$L771:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L789
nop

lw	$4,36($16)
lw	$2,80($16)
lw	$6,40($16)
addu	$2,$2,$4
lbu	$3,0($2)
addiu	$4,$4,1
sll	$17,$3,8
j	$L773
sw	$4,36($16)

$L766:
jal	stream_fill_buffer
move	$4,$16

beq	$2,$0,$L790
nop

lw	$4,36($16)
lw	$2,80($16)
lw	$6,40($16)
addu	$2,$2,$4
lbu	$18,0($2)
addiu	$4,$4,1
j	$L768
sw	$4,36($16)

$L761:
jal	stream_fill_buffer
nop

beq	$2,$0,$L791
nop

lw	$4,36($16)
lw	$2,80($16)
lw	$6,40($16)
addu	$2,$2,$4
lbu	$3,0($2)
addiu	$4,$4,1
sll	$19,$3,8
j	$L763
sw	$4,36($16)

$L791:
lw	$4,36($16)
lw	$6,40($16)
j	$L763
li	$19,-65536			# 0xffffffffffff0000

$L790:
lw	$4,36($16)
lw	$6,40($16)
j	$L768
li	$18,-256			# 0xffffffffffffff00

$L789:
lw	$4,36($16)
lw	$6,40($16)
j	$L773
li	$17,-65536			# 0xffffffffffff0000

$L788:
j	$L778
li	$5,-256			# 0xffffffffffffff00

.set	macro
.set	reorder
.end	read_mpeg_timestamp
.section	.rodata.str1.4
.align	2
$LC17:
.ascii	"demux_mpg: invalid header length  \012\000"
.align	2
$LC18:
.ascii	"demux_mpg: pes_extension_flag2 not set, discarding pes p"
.ascii	"acket\012\000"
.align	2
$LC19:
.ascii	"demux_mpg: not enough pes_private_data bytes: %d < 16, d"
.ascii	"iscarding pes packet\012\000"
.align	2
$LC20:
.ascii	"demux_mpg: not enough pack_header bytes: hdrlen: %d < sk"
.ascii	"ip: %d, discarding pes packet\012\000"
.align	2
$LC21:
.ascii	"demux_mpg: not enough program_packet bytes: hdrlen: %d, "
.ascii	"discarding pes packet\012\000"
.align	2
$LC22:
.ascii	"demux_mpg: unknown pes_extension2 format, len is > 1  \012"
.ascii	"\000"
.align	2
$LC23:
.ascii	"demux_mpg: unknown vc1 substream_id: 0x%x  \012\000"
.align	2
$LC24:
.ascii	"==> Found subtitle: %d\012\000"
.align	2
$LC25:
.ascii	"End of packet while searching for PCM header\012\000"
.align	2
$LC26:
.ascii	"Unknown 0x1BD substream: 0x%02X  \012\000"
.align	2
$LC27:
.ascii	"  {ERROR5,c=%d}  \012\000"
.align	2
$LC28:
.ascii	"  {PTS_err:%d}  \012\000"
.globl	__cmpdi2
.globl	__floatdisf
.section	.rodata.cst8
.align	3
$LC16:
.word	0
.word	-1008730112
.section	.rodata.cst4
.align	2
$LC29:
.word	926575068
.section	.text.demux_mpg_read_packet,"ax",@progbits
.align	2
.align	5
.ent	demux_mpg_read_packet
.type	demux_mpg_read_packet, @function
demux_mpg_read_packet:
.frame	$sp,112,$31		# vars= 48, regs= 10/0, args= 24, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
addiu	$sp,$sp,-112
sw	$21,92($sp)
lui	$21,%hi($LC16)
lw	$6,%lo($LC16)($21)
lw	$7,%lo($LC16+4)($21)
addiu	$2,$5,-444
sw	$19,84($sp)
sw	$18,80($sp)
sw	$31,108($sp)
sw	$fp,104($sp)
sw	$23,100($sp)
sw	$22,96($sp)
sw	$20,88($sp)
sw	$17,76($sp)
sw	$16,72($sp)
sltu	$2,$2,52
move	$19,$5
move	$18,$4
sw	$6,24($sp)
sw	$7,28($sp)
.set	noreorder
.set	nomacro
bne	$2,$0,$L794
lw	$20,2248($4)
.set	macro
.set	reorder

li	$2,509			# 0x1fd
beq	$5,$2,$L797
$L1205:
li	$2,-1			# 0xffffffffffffffff
$L814:
lw	$31,108($sp)
lw	$fp,104($sp)
lw	$23,100($sp)
lw	$22,96($sp)
lw	$21,92($sp)
lw	$20,88($sp)
lw	$19,84($sp)
lw	$18,80($sp)
lw	$17,76($sp)
lw	$16,72($sp)
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,112
.set	macro
.set	reorder

$L794:
li	$2,446			# 0x1be
.set	noreorder
.set	nomacro
beq	$5,$2,$L814
li	$2,-1			# 0xffffffffffffffff
.set	macro
.set	reorder

li	$2,447			# 0x1bf
.set	noreorder
.set	nomacro
beq	$5,$2,$L814
li	$2,-1			# 0xffffffffffffffff
.set	macro
.set	reorder

$L797:
lw	$16,16($18)
lw	$3,36($16)
lw	$5,40($16)
sltu	$2,$3,$5
.set	noreorder
.set	nomacro
beq	$2,$0,$L799
addiu	$4,$3,1
.set	macro
.set	reorder

lw	$2,80($16)
addu	$2,$3,$2
lbu	$3,0($2)
sw	$4,36($16)
sll	$17,$3,8
$L801:
sltu	$2,$4,$5
beq	$2,$0,$L804
lw	$2,80($16)
addu	$2,$4,$2
addiu	$4,$4,1
lbu	$2,0($2)
sw	$4,36($16)
$L806:
or	$5,$2,$17
.set	noreorder
.set	nomacro
bne	$5,$0,$L1207
li	$2,196608			# 0x30000
.set	macro
.set	reorder

$L809:
lw	$31,108($sp)
lw	$fp,104($sp)
lw	$23,100($sp)
lw	$22,96($sp)
lw	$21,92($sp)
lw	$20,88($sp)
lw	$19,84($sp)
lw	$18,80($sp)
lw	$17,76($sp)
lw	$16,72($sp)
li	$2,-2			# 0xfffffffffffffffe
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,112
.set	macro
.set	reorder

$L799:
.set	noreorder
.set	nomacro
jal	stream_fill_buffer
move	$4,$16
.set	macro
.set	reorder

beq	$2,$0,$L1208
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
.set	noreorder
.set	nomacro
j	$L801
sw	$4,36($16)
.set	macro
.set	reorder

$L804:
.set	noreorder
.set	nomacro
jal	stream_fill_buffer
move	$4,$16
.set	macro
.set	reorder

beq	$2,$0,$L1209
lw	$2,36($16)
lw	$3,80($16)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$2,0($3)
.set	noreorder
.set	nomacro
j	$L806
sw	$4,36($16)
.set	macro
.set	reorder

$L1208:
lw	$4,36($16)
lw	$5,40($16)
.set	noreorder
.set	nomacro
j	$L801
li	$17,-65536			# 0xffffffffffff0000
.set	macro
.set	reorder

$L1209:
.set	noreorder
.set	nomacro
j	$L806
li	$2,-256			# 0xffffffffffffff00
.set	macro
.set	reorder

$L1207:
ori	$2,$2,0x8000
slt	$2,$2,$5
.set	noreorder
.set	nomacro
bne	$2,$0,$L809
move	$22,$5
.set	macro
.set	reorder

lui	$2,%hi(mpeg_pts_error)
sw	$0,%lo(mpeg_pts_error)($2)
li	$2,444			# 0x1bc
beq	$19,$2,$L1210
.set	noreorder
.set	nomacro
bgtz	$5,$L1184
move	$5,$0
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L825
move	$3,$0
.set	macro
.set	reorder

$L1214:
lw	$2,80($16)
addu	$2,$3,$2
lbu	$2,0($2)
sw	$5,36($16)
$L818:
andi	$5,$2,0x00ff
li	$2,255			# 0xff
.set	noreorder
.set	nomacro
bne	$5,$2,$L1212
addiu	$22,$22,-1
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$22,$0,$L825
li	$3,15			# 0xf
.set	macro
.set	reorder

$L1184:
lw	$16,16($18)
lw	$3,36($16)
lw	$2,40($16)
move	$4,$16
sltu	$2,$3,$2
.set	noreorder
.set	nomacro
bne	$2,$0,$L1214
addiu	$5,$3,1
.set	macro
.set	reorder

jal	stream_fill_buffer
.set	noreorder
.set	nomacro
beq	$2,$0,$L819
move	$5,$0
.set	macro
.set	reorder

lw	$2,36($16)
lw	$3,80($16)
addiu	$4,$2,1
addu	$3,$3,$2
lbu	$2,0($3)
.set	noreorder
.set	nomacro
j	$L818
sw	$4,36($16)
.set	macro
.set	reorder

$L1212:
srl	$3,$5,6
li	$2,1			# 0x1
.set	noreorder
.set	nomacro
beq	$3,$2,$L826
srl	$3,$5,4
.set	macro
.set	reorder

$L825:
li	$4,2			# 0x2
.set	noreorder
.set	nomacro
beq	$3,$4,$L1215
li	$2,3			# 0x3
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$3,$2,$L1216
srl	$2,$5,6
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$2,$4,$L1217
li	$2,15			# 0xf
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
bne	$5,$2,$L1077
move	$6,$0
.set	macro
.set	reorder

move	$7,$0
addiu	$16,$22,-1
sw	$0,56($sp)
sw	$6,48($sp)
sw	$7,52($sp)
sw	$0,40($sp)
$L839:
lui	$2,%hi(mpeg_pts_error)
lw	$7,%lo(mpeg_pts_error)($2)
.set	noreorder
.set	nomacro
bne	$7,$0,$L1218
lui	$6,%hi($LC28)
.set	macro
.set	reorder