mpegts.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 4,844 行 · 第 1/5 页

.file	1 "mpegts.c"
.section .mdebug.abi32
.previous
.section	.text.read_packet,"ax",@progbits
.align	2
.align	5
.ent	read_packet
.type	read_packet, @function
read_packet:
.frame	$sp,56,$31		# vars= 0, regs= 7/0, args= 24, gp= 0
.mask	0x803f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-56
sw	$21,44($sp)
sw	$20,40($sp)
sw	$19,36($sp)
sw	$31,48($sp)
sw	$18,32($sp)
sw	$17,28($sp)
sw	$16,24($sp)
move	$19,$4
move	$20,$5
move	$21,$6
move	$4,$19
$L23:
move	$5,$20
jal	get_buffer
li	$6,188			# 0xbc

li	$3,188			# 0xbc
bne	$2,$3,$L6
li	$2,-5			# 0xfffffffffffffffb

lbu	$3,0($20)
li	$2,71			# 0x47
beq	$3,$2,$L7
li	$2,1			# 0x1

move	$4,$19
li	$6,-188			# 0xffffffffffffff44
li	$7,-1			# 0xffffffffffffffff
sw	$2,16($sp)
jal	url_fseek
move	$16,$0

li	$18,71			# 0x47
j	$L9
li	$17,4096			# 0x1000

$L22:
beq	$2,$18,$L21
move	$4,$19

beq	$16,$17,$L6
li	$2,-22			# 0xffffffffffffffea

$L9:
move	$4,$19
jal	url_fgetc
addiu	$16,$16,1

bgez	$2,$L22
nop

li	$2,-22			# 0xffffffffffffffea
$L6:
lw	$31,48($sp)
lw	$21,44($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,56

$L21:
li	$6,-1			# 0xffffffffffffffff
li	$7,-1			# 0xffffffffffffffff
li	$2,1			# 0x1
jal	url_fseek
sw	$2,16($sp)

j	$L23
move	$4,$19

$L7:
addiu	$2,$21,-188
blez	$2,$L19
move	$6,$2

sra	$7,$2,31
jal	url_fskip
move	$4,$19

$L19:
j	$L6
move	$2,$0

.set	macro
.set	reorder
.end	read_packet
.section	.text.read_seek,"ax",@progbits
.align	2
.align	5
.ent	read_seek
.type	read_seek, @function
read_seek:
.frame	$sp,248,$31		# vars= 192, regs= 7/0, args= 24, gp= 0
.mask	0x803f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-248
lw	$2,264($sp)
sw	$16,216($sp)
sw	$31,240($sp)
sw	$21,236($sp)
sw	$20,232($sp)
sw	$19,228($sp)
sw	$18,224($sp)
sw	$17,220($sp)
sw	$2,16($sp)
move	$16,$4
jal	av_seek_frame_binary
lw	$19,12($4)

bgez	$2,$L33
li	$2,-1			# 0xffffffffffffffff

$L31:
lw	$31,240($sp)
$L35:
lw	$21,236($sp)
lw	$20,232($sp)
lw	$19,228($sp)
lw	$18,224($sp)
lw	$17,220($sp)
lw	$16,216($sp)
j	$31
addiu	$sp,$sp,248

$L33:
addiu	$18,$16,16
jal	url_ftell
move	$4,$18

move	$16,$2
move	$17,$3
addiu	$21,$sp,24
j	$L27
li	$20,188			# 0xbc

$L34:
lbu	$2,25($sp)
andi	$2,$2,0x40
bne	$2,$0,$L29
move	$4,$18

lw	$2,4($19)
sra	$5,$2,31
addu	$6,$16,$2
sltu	$2,$6,$16
addu	$7,$17,$5
addu	$7,$2,$7
move	$16,$6
move	$17,$7
$L27:
move	$6,$16
move	$4,$18
move	$7,$17
jal	url_fseek
sw	$0,16($sp)

move	$4,$18
move	$5,$21
jal	get_buffer
li	$6,188			# 0xbc

beq	$2,$20,$L34
li	$2,-1			# 0xffffffffffffffff

j	$L35
lw	$31,240($sp)

$L29:
move	$6,$16
move	$7,$17
jal	url_fseek
sw	$0,16($sp)

j	$L31
move	$2,$0

.set	macro
.set	reorder
.end	read_seek
.section	.text.mpegts_parse_close,"ax",@progbits
.align	2
.align	5
.globl	mpegts_parse_close
.ent	mpegts_parse_close
.type	mpegts_parse_close, @function
mpegts_parse_close:
.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	$17,20($sp)
sw	$16,16($sp)
sw	$31,28($sp)
move	$17,$4
move	$16,$0
li	$18,32768			# 0x8000
addu	$2,$17,$16
$L42:
lw	$4,44($2)
jal	av_free
addiu	$16,$16,4

bne	$16,$18,$L42
addu	$2,$17,$16

move	$4,$17
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
j	av_free
addiu	$sp,$sp,32

.set	macro
.set	reorder
.end	mpegts_parse_close
.section	.text.mpegts_parse_open,"ax",@progbits
.align	2
.align	5
.globl	mpegts_parse_open
.ent	mpegts_parse_open
.type	mpegts_parse_open, @function
mpegts_parse_open:
.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	$16,16($sp)
move	$16,$4
sw	$31,20($sp)
jal	av_mallocz
li	$4,32816			# 0x8030

beq	$2,$0,$L48
move	$3,$2

li	$2,188			# 0xbc
sw	$2,4($3)
li	$2,1			# 0x1
sw	$2,8($3)
sw	$16,0($3)
lw	$31,20($sp)
lw	$16,16($sp)
move	$2,$3
j	$31
addiu	$sp,$sp,24

$L48:
move	$3,$0
lw	$31,20($sp)
lw	$16,16($sp)
move	$2,$3
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	mpegts_parse_open
.section	.text.analyze,"ax",@progbits
.align	2
.align	5
.ent	analyze
.type	analyze, @function
analyze:
.frame	$fp,48,$31		# vars= 0, regs= 8/0, args= 16, gp= 0
.mask	0xc03f0000,-4
.fmask	0x00000000,0
addiu	$sp,$sp,-48
sw	$18,24($sp)
move	$18,$6
sll	$6,$6,2
addiu	$2,$6,14
srl	$2,$2,3
sll	$2,$2,3
sw	$fp,40($sp)
sw	$21,36($sp)
sw	$20,32($sp)
sw	$19,28($sp)
sw	$17,20($sp)
sw	$16,16($sp)
sw	$31,44($sp)
move	$fp,$sp
move	$20,$sp
sltu	$3,$6,40
subu	$sp,$sp,$2
move	$19,$4
move	$17,$5
move	$21,$7
.set	noreorder
.set	nomacro
bne	$3,$0,$L93
addiu	$16,$sp,16
.set	macro
.set	reorder

andi	$2,$16,0x3
li	$3,4			# 0x4
subu	$3,$3,$2
li	$2,2			# 0x2
.set	noreorder
.set	nomacro
beq	$3,$2,$L55
move	$4,$16
.set	macro
.set	reorder

li	$2,3			# 0x3
.set	noreorder
.set	nomacro
beq	$3,$2,$L56
li	$2,1			# 0x1
.set	macro
.set	reorder

beq	$3,$2,$L94
$L53:
addiu	$5,$4,-4
move	$2,$0
#APP
.word	0b01110000000000100000000001101111	#S32I2M XR1,$2
#NO_APP
andi	$3,$4,0x1f
.set	noreorder
.set	nomacro
beq	$3,$0,$L57
li	$2,-32			# 0xffffffffffffffe0
.set	macro
.set	reorder

and	$2,$5,$2
addiu	$4,$2,32
sltu	$3,$5,$4
beq	$3,$0,$L57
$L85:
#APP
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$4
bne	$2,$0,$L85
$L57:
addu	$6,$6,$16
addiu	$2,$6,-31
li	$3,-32			# 0xffffffffffffffe0
and	$3,$2,$3
sltu	$4,$5,$3
.set	noreorder
.set	nomacro
beq	$4,$0,$L99
addiu	$2,$6,-4
.set	macro
.set	reorder

addiu	$2,$5,4
$L100:
#APP
pref 30,0($2)
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$3
.set	noreorder
.set	nomacro
bne	$2,$0,$L100
addiu	$2,$5,4
.set	macro
.set	reorder

addiu	$2,$6,-4
$L99:
li	$3,-4			# 0xfffffffffffffffc
and	$3,$2,$3
sltu	$4,$5,$3
beq	$4,$0,$L62
$L87:
#APP
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$3
bne	$2,$0,$L87
$L62:
andi	$3,$6,0x3
li	$2,2			# 0x2
.set	noreorder
.set	nomacro
beq	$3,$2,$L65
addiu	$4,$5,4
.set	macro
.set	reorder

li	$2,3			# 0x3
.set	noreorder
.set	nomacro
beq	$3,$2,$L66
li	$2,1			# 0x1
.set	macro
.set	reorder

beq	$3,$2,$L95
$L52:
blez	$17,$L96
$L67:
.set	noreorder
.set	nomacro
bne	$21,$0,$L70
move	$4,$0
.set	macro
.set	reorder

move	$6,$0
move	$9,$0
.set	noreorder
.set	nomacro
j	$L72
li	$8,71			# 0x47
.set	macro
.set	reorder

$L73:
.set	noreorder
.set	nomacro
beq	$17,$6,$L69
movz	$4,$0,$5
.set	macro
.set	reorder

$L72:
sll	$2,$4,2
addu	$3,$19,$6
addu	$7,$2,$16
lbu	$2,0($3)
addiu	$4,$4,1
addiu	$6,$6,1
.set	noreorder
.set	nomacro
bne	$2,$8,$L73
xor	$5,$18,$4
.set	macro
.set	reorder

lw	$2,0($7)
movz	$4,$0,$5
addiu	$2,$2,1
slt	$3,$9,$2
movn	$9,$2,$3
.set	noreorder
.set	nomacro
bne	$17,$6,$L72
sw	$2,0($7)
.set	macro
.set	reorder

$L69:
move	$sp,$20
$L98:
move	$sp,$fp
lw	$31,44($sp)
lw	$fp,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$9
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,48
.set	macro
.set	reorder

$L55:
addiu	$4,$16,2
sb	$0,0($16)
.set	noreorder
.set	nomacro
j	$L53
sb	$0,1($16)
.set	macro
.set	reorder

$L93:
move	$4,$16
.set	noreorder
.set	nomacro
jal	memset
move	$5,$0
.set	macro
.set	reorder

bgtz	$17,$L67
$L96:
move	$sp,$20
move	$sp,$fp
move	$9,$0
lw	$31,44($sp)
lw	$fp,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$9
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,48
.set	macro
.set	reorder

$L65:
sb	$0,4($5)
.set	noreorder
.set	nomacro
j	$L52
sb	$0,1($4)
.set	macro
.set	reorder

$L95:
.set	noreorder
.set	nomacro
j	$L52
sb	$0,4($5)
.set	macro
.set	reorder

$L66:
sb	$0,6($5)
sb	$0,4($5)
.set	noreorder
.set	nomacro
j	$L52
sb	$0,5($5)
.set	macro
.set	reorder

$L56:
addiu	$4,$16,3
sb	$0,0($16)
sb	$0,1($16)
.set	noreorder
.set	nomacro
j	$L53
sb	$0,2($16)
.set	macro
.set	reorder

$L94:
addiu	$4,$16,1
.set	noreorder
.set	nomacro
j	$L53
sb	$0,0($16)
.set	macro
.set	reorder

$L70:
move	$6,$0
move	$9,$0
li	$7,71			# 0x47
$L78:
sll	$2,$4,2
addu	$3,$19,$6
addu	$5,$2,$16
lbu	$2,0($3)
.set	noreorder
.set	nomacro
beq	$2,$7,$L97
addiu	$6,$6,1
.set	macro
.set	reorder

$L79:
addiu	$4,$4,1
xor	$2,$18,$4
.set	noreorder
.set	nomacro
bne	$17,$6,$L78
movz	$4,$0,$2
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L98
move	$sp,$20
.set	macro
.set	reorder

$L97:
lw	$2,0($5)
addiu	$2,$2,1
slt	$3,$9,$2
.set	noreorder
.set	nomacro
beq	$3,$0,$L79
sw	$2,0($5)
.set	macro
.set	reorder

move	$9,$2
.set	noreorder
.set	nomacro
j	$L79
sw	$4,0($21)
.set	macro
.set	reorder

.end	analyze
.section	.text.mpegts_probe,"ax",@progbits
.align	2
.align	5
.ent	mpegts_probe
.type	mpegts_probe, @function
mpegts_probe:
.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	$16,16($sp)
sw	$31,28($sp)
sw	$18,24($sp)
sw	$17,20($sp)
lw	$2,8($4)
slt	$2,$2,2040
beq	$2,$0,$L115
move	$16,$4

$L102:
li	$2,-1			# 0xffffffffffffffff
lw	$31,28($sp)
$L119:
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
j	$31
addiu	$sp,$sp,32

$L115:
lw	$4,4($4)
li	$5,1880			# 0x758
li	$6,188			# 0xbc
jal	analyze
move	$7,$0

lw	$4,4($16)
li	$5,1920			# 0x780
li	$6,192			# 0xc0
move	$7,$0
jal	analyze
move	$17,$2

lw	$4,4($16)
li	$5,2040			# 0x7f8
li	$6,204			# 0xcc
move	$7,$0
jal	analyze
move	$18,$2

move	$3,$2
slt	$2,$2,$17
beq	$2,$0,$L117
slt	$2,$17,$18

slt	$2,$18,$17
beq	$2,$0,$L104
slt	$2,$17,$18

slt	$2,$17,7
bne	$2,$0,$L107
addiu	$2,$17,90

j	$L119
lw	$31,28($sp)

$L104:
$L117:
bne	$2,$0,$L116
slt	$2,$3,$18

$L107:
slt	$2,$3,7
$L118:
bne	$2,$0,$L102
lw	$31,28($sp)

lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
addiu	$2,$3,90
j	$31
addiu	$sp,$sp,32

$L116:
beq	$2,$0,$L118
slt	$2,$3,7

slt	$2,$18,7
bne	$2,$0,$L107
addiu	$2,$18,90

j	$L119
lw	$31,28($sp)

.set	macro
.set	reorder
.end	mpegts_probe
.globl	__divdi3
.section	.text.mpegts_get_pcr,"ax",@progbits
.align	2
.align	5
.ent	mpegts_get_pcr
.type	mpegts_get_pcr, @function
mpegts_get_pcr:
.frame	$sp,256,$31		# vars= 192, regs= 9/0, args= 24, gp= 0
.mask	0x80ff0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-256
sw	$23,244($sp)
sw	$21,236($sp)
sw	$20,232($sp)
sw	$18,224($sp)
sw	$17,220($sp)
sw	$16,216($sp)
sw	$31,248($sp)
sw	$22,240($sp)
sw	$19,228($sp)
lw	$19,12($4)
move	$23,$6
lw	$2,4($19)
lw	$6,0($6)
move	$18,$4
lw	$7,4($23)
sll	$5,$5,2
move	$16,$2
sra	$17,$2,31
addu	$5,$5,$18
addu	$2,$2,$6
sltu	$4,$2,$16
addu	$3,$17,$7
lw	$7,100($5)
addu	$3,$4,$3
addiu	$4,$2,-1
sltu	$6,$4,$2
lw	$8,20($7)
addiu	$5,$3,-1
addu	$5,$6,$5
move	$7,$17
move	$6,$16
jal	__divdi3
lw	$22,4($8)

mul	$5,$3,$16
multu	$16,$2
addiu	$18,$18,16
mfhi	$21
mflo	$20
mul	$4,$17,$2
addiu	$16,$sp,24
addu	$2,$4,$5
bgez	$22,$L140
addu	$21,$2,$21

j	$L142
move	$6,$20

$L134:
lw	$4,4($19)
sra	$3,$4,31
addu	$4,$20,$4
sltu	$6,$4,$20
addu	$5,$21,$3
addu	$5,$6,$5
move	$20,$4
move	$21,$5
$L140:
move	$6,$20
move	$7,$21
move	$4,$18
jal	url_fseek
sw	$0,16($sp)

move	$4,$18
move	$5,$16
jal	get_buffer
li	$6,188			# 0xbc

li	$3,188			# 0xbc
bne	$2,$3,$L122
lbu	$2,25($sp)

lbu	$3,26($sp)
sll	$2,$2,8
or	$2,$2,$3
andi	$2,$2,0x1fff
bne	$22,$2,$L134
lbu	$2,27($sp)

srl	$2,$2,4
andi	$2,$2,0x3
slt	$2,$2,2
bne	$2,$0,$L134
lbu	$2,28($sp)

beq	$2,$0,$L134
lbu	$4,29($sp)

addiu	$3,$2,-1
andi	$2,$4,0x10
beq	$2,$0,$L134
slt	$3,$3,6

bne	$3,$0,$L134
lbu	$4,30($sp)

$L143:
lbu	$5,31($sp)
lbu	$6,33($sp)
lbu	$2,32($sp)
sll	$4,$4,24
sll	$5,$5,16
or	$4,$4,$5
or	$4,$4,$6
sll	$2,$2,8
lbu	$6,34($sp)
or	$2,$2,$4
move	$3,$0
srl	$7,$2,31
sll	$3,$3,1
srl	$4,$6,7
or	$3,$7,$3
sll	$2,$2,1
or	$6,$2,$4
move	$7,$3
sw	$20,0($23)
j	$L131
sw	$21,4($23)

$L141:
srl	$2,$2,4
andi	$2,$2,0x3
slt	$2,$2,2
bne	$2,$0,$L126
lbu	$2,28($sp)

beq	$2,$0,$L126
lbu	$4,29($sp)

addiu	$3,$2,-1
andi	$2,$4,0x10
beq	$2,$0,$L126
slt	$3,$3,6

beq	$3,$0,$L143
lbu	$4,30($sp)

$L126:
lw	$4,4($19)
sra	$3,$4,31
addu	$4,$20,$4
sltu	$6,$4,$20
addu	$5,$21,$3
addu	$5,$6,$5
move	$20,$4
move	$21,$5
move	$6,$20
$L142:
move	$7,$21
move	$4,$18
jal	url_fseek
sw	$0,16($sp)

move	$4,$18
move	$5,$16
jal	get_buffer
li	$6,188			# 0xbc

li	$3,188			# 0xbc
beq	$2,$3,$L141
lbu	$2,27($sp)

$L122:
move	$6,$0
li	$7,-2147483648			# 0xffffffff80000000
$L131:
lw	$31,248($sp)
lw	$23,244($sp)
lw	$22,240($sp)
lw	$21,236($sp)
lw	$20,232($sp)
lw	$19,228($sp)
lw	$18,224($sp)
lw	$17,220($sp)
lw	$16,216($sp)
move	$2,$6
move	$3,$7
j	$31
addiu	$sp,$sp,256

.set	macro
.set	reorder
.end	mpegts_get_pcr
.section	.text.mpegts_raw_read_packet,"ax",@progbits
.align	2
.align	5
.ent	mpegts_raw_read_packet
.type	mpegts_raw_read_packet, @function
mpegts_raw_read_packet:
.frame	$sp,88,$31		# vars= 24, regs= 9/0, args= 24, gp= 0
.mask	0x80ff0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-88
sw	$20,64($sp)
move	$20,$5
sw	$16,48($sp)
sw	$31,80($sp)
move	$16,$4
sw	$23,76($sp)
sw	$22,72($sp)
sw	$21,68($sp)
sw	$19,60($sp)
sw	$18,56($sp)
sw	$17,52($sp)