mpeg_hdr.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 3,604 行 · 第 1/4 页

	.file	1 "mpeg_hdr.c"
	.section .mdebug.abi32
	.previous
	.section	.text.mp_header_process_sequence_header,"ax",@progbits
	.align	2
	.align	5
	.globl	mp_header_process_sequence_header
	.ent	mp_header_process_sequence_header
	.type	mp_header_process_sequence_header, @function
mp_header_process_sequence_header:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lbu	$2,6($5)
	move	$6,$5
	andi	$2,$2,0x20
	li	$8,1			# 0x1
	beq	$2,$0,$L4
	move	$7,$4

	lbu	$3,0($5)
	lbu	$4,2($5)
	lbu	$2,1($5)
	sll	$3,$3,16
	or	$3,$3,$4
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$2,0xfff
	sra	$2,$2,12
	sw	$2,4($7)
	sw	$4,8($7)
	lbu	$2,3($5)
	move	$8,$0
	srl	$2,$2,4
	sw	$2,12($7)
	lbu	$4,3($5)
	lui	$2,%hi(frameratecode2framerate)
	andi	$4,$4,0xf
	sll	$3,$4,2
	addiu	$2,$2,%lo(frameratecode2framerate)
	addu	$3,$3,$2
	lw	$5,0($3)
	sw	$4,16($7)
	sw	$5,20($7)
	lbu	$3,4($6)
	lbu	$2,5($6)
	lbu	$4,6($6)
	sll	$2,$2,2
	sll	$3,$3,10
	or	$3,$3,$2
	srl	$4,$4,6
	or	$3,$3,$4
	li	$2,100			# 0x64
	sw	$2,48($7)
	sw	$3,24($7)
	li	$2,1			# 0x1
	li	$3,3			# 0x3
	sw	$2,0($7)
	sw	$3,28($7)
$L4:
	j	$31
	move	$2,$8

	.set	macro
	.set	reorder
	.end	mp_header_process_sequence_header
	.section	.text.mp_header_process_extension,"ax",@progbits
	.align	2
	.align	5
	.globl	mp_header_process_extension
	.ent	mp_header_process_extension
	.type	mp_header_process_extension, @function
mp_header_process_extension:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lbu	$2,0($5)
	andi	$3,$2,0xf0
	li	$2,16			# 0x10
	beq	$3,$2,$L9
	move	$6,$4

	li	$2,128			# 0x80
	beq	$3,$2,$L26
	nop

$L8:
	move	$4,$0
$L16:
	j	$31
	move	$2,$4

$L26:
	lbu	$2,2($5)
	andi	$2,$2,0x3
	sw	$2,28($4)
	lbu	$3,3($5)
	li	$2,100			# 0x64
	srl	$7,$3,7
	sw	$7,44($4)
	lbu	$3,3($5)
	srl	$3,$3,1
	andi	$3,$3,0x1
	sw	$3,36($4)
	lbu	$4,4($5)
	sw	$2,48($6)
	srl	$4,$4,7
	beq	$3,$0,$L17
	sw	$4,40($6)

	lw	$2,32($6)
	beq	$2,$0,$L19
	nop

	bne	$7,$0,$L27
	li	$2,300			# 0x12c

	li	$2,200			# 0xc8
	sw	$2,48($6)
$L17:
	lw	$3,28($6)
	li	$2,3			# 0x3
	beq	$3,$2,$L8
	move	$4,$0

	lw	$3,48($6)
	srl	$2,$3,31
	addu	$2,$2,$3
	sra	$2,$2,1
	sw	$2,48($6)
	j	$31
	move	$2,$4

$L9:
	lbu	$3,1($5)
	andi	$2,$3,0x6
	beq	$2,$0,$L28
	li	$4,1			# 0x1

	andi	$2,$3,0x1
	bne	$2,$0,$L28
	nop

	lbu	$2,2($5)
	andi	$2,$2,0xe0
	bne	$2,$0,$L28
	nop

	lbu	$2,3($5)
	andi	$2,$2,0x1
	beq	$2,$0,$L11
	move	$4,$0

	srl	$2,$3,3
	andi	$2,$2,0x1
	sw	$2,32($6)
	j	$L16
	sw	$0,0($6)

$L11:
	li	$4,1			# 0x1
$L28:
	j	$31
	move	$2,$4

$L19:
	beq	$4,$0,$L17
	li	$2,150			# 0x96

	j	$L17
	sw	$2,48($6)

$L27:
	j	$L17
	sw	$2,48($6)

	.set	macro
	.set	reorder
	.end	mp_header_process_extension
	.section	.text.mp_getbits,"ax",@progbits
	.align	2
	.align	5
	.globl	mp_getbits
	.ent	mp_getbits
	.type	mp_getbits, @function
mp_getbits:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	andi	$9,$5,0x7
	li	$2,8			# 0x8
	subu	$2,$2,$9
	andi	$6,$6,0x00ff
	andi	$2,$2,0x00ff
	subu	$3,$6,$2
	sltu	$2,$2,$6
	move	$8,$0
	beq	$2,$0,$L32
	srl	$5,$5,3

	andi	$8,$3,0x00ff
$L32:
	addu	$7,$5,$4
	li	$2,8			# 0x8
	subu	$10,$2,$8
	lbu	$2,0($7)
	li	$3,8			# 0x8
	sll	$2,$2,$9
	subu	$3,$3,$6
	andi	$5,$2,0x00ff
	sltu	$4,$6,8
	beq	$4,$0,$L33
	sra	$2,$5,$3

	andi	$5,$2,0x00ff
$L33:
	beq	$8,$0,$L35
	nop

	lbu	$2,1($7)
	sra	$2,$2,$10
	or	$2,$2,$5
	andi	$5,$2,0x00ff
$L35:
	j	$31
	move	$2,$5

	.set	macro
	.set	reorder
	.end	mp_getbits
	.section	.text.mp_unescape03,"ax",@progbits
	.align	2
	.align	5
	.ent	mp_unescape03
	.type	mp_unescape03, @function
mp_unescape03:
	.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	addiu	$sp,$sp,-32
	sw	$17,20($sp)
	move	$17,$4
	move	$4,$5
	sw	$18,24($sp)
	sw	$16,16($sp)
	sw	$31,28($sp)
	.set	noreorder
	.set	nomacro
	jal	uc_malloc
	move	$18,$5
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L72
	move	$16,$2
	.set	macro
	.set	reorder

	addiu	$10,$18,-3
	move	$8,$0
	move	$5,$0
	.set	noreorder
	.set	nomacro
	j	$L71
	move	$6,$0
	.set	macro
	.set	reorder

$L43:
	lbu	$4,0($3)
	bne	$4,$0,$L44
	lbu	$2,1($3)
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L44
	li	$2,3			# 0x3
	.set	macro
	.set	reorder

	lbu	$3,2($3)
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L73
	addu	$9,$16,$5
	.set	macro
	.set	reorder

$L44:
	sb	$4,0($7)
	addiu	$5,$5,1
	addiu	$8,$8,1
$L71:
	slt	$2,$10,$8
	addu	$3,$17,$8
	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L43
	addu	$7,$16,$5
	.set	macro
	.set	reorder

	addu	$4,$18,$17
	lbu	$2,-2($4)
	subu	$18,$18,$6
	sb	$2,0($7)
	lbu	$2,-1($4)
	sltu	$3,$18,32
	.set	noreorder
	.set	nomacro
	bne	$3,$0,$L49
	sb	$2,1($7)
	.set	macro
	.set	reorder

	andi	$2,$17,0x3
	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L74
	andi	$2,$16,0x3
	.set	macro
	.set	reorder

$L49:
	move	$4,$17
$L75:
	move	$5,$16
	.set	noreorder
	.set	nomacro
	jal	memcpy
	move	$6,$18
	.set	macro
	.set	reorder

$L57:
	.set	noreorder
	.set	nomacro
	jal	uc_free
	move	$4,$16
	.set	macro
	.set	reorder

	move	$2,$18
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	.set	noreorder
	.set	nomacro
	j	$31
	addiu	$sp,$sp,32
	.set	macro
	.set	reorder

$L73:
	addiu	$5,$5,2
	addiu	$8,$8,3
	addiu	$6,$6,1
	sb	$0,0($9)
	.set	noreorder
	.set	nomacro
	j	$L71
	sb	$0,1($9)
	.set	macro
	.set	reorder

$L74:
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L75
	move	$4,$17
	.set	macro
	.set	reorder

	li	$2,-32			# 0xffffffffffffffe0
	addiu	$4,$17,-4
	and	$2,$18,$2
	addu	$6,$4,$2
	sltu	$3,$4,$6
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L53
	addiu	$5,$16,-4
	.set	macro
	.set	reorder

$L65:
#APP
	S32LDI xr1,$5,4
	S32LDI xr2,$5,4
	S32LDI xr3,$5,4
	S32LDI xr4,$5,4
	S32LDI xr5,$5,4
	S32LDI xr6,$5,4
	S32LDI xr7,$5,4
	S32LDI xr8,$5,4
	S32SDI xr1,$4,4
	S32SDI xr2,$4,4
	S32SDI xr3,$4,4
	S32SDI xr4,$4,4
	S32SDI xr5,$4,4
	S32SDI xr6,$4,4
	S32SDI xr7,$4,4
	S32SDI xr8,$4,4
#NO_APP
	sltu	$2,$4,$6
	bne	$2,$0,$L65
$L53:
	andi	$2,$18,0x1c
	addu	$6,$6,$2
	sltu	$3,$4,$6
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L76
	andi	$3,$18,0x3
	.set	macro
	.set	reorder

$L66:
#APP
	S32LDI xr1,$5,4
	S32SDI xr1,$4,4
#NO_APP
	sltu	$2,$4,$6
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L66
	andi	$3,$18,0x3
	.set	macro
	.set	reorder

$L76:
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L59
	li	$2,3			# 0x3
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L60
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	bne	$3,$2,$L57
	lbu	$2,4($5)
	.set	noreorder
	.set	nomacro
	j	$L57
	sb	$2,4($4)
	.set	macro
	.set	reorder

$L72:
	move	$18,$0
	move	$2,$18
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	.set	noreorder
	.set	nomacro
	j	$31
	addiu	$sp,$sp,32
	.set	macro
	.set	reorder

$L59:
	lbu	$2,4($5)
	sb	$2,4($4)
	lbu	$3,5($5)
	.set	noreorder
	.set	nomacro
	j	$L57
	sb	$3,5($4)
	.set	macro
	.set	reorder

$L60:
	lbu	$2,4($5)
	sb	$2,4($4)
	lbu	$3,5($5)
	sb	$3,5($4)
	lbu	$2,6($5)
	.set	noreorder
	.set	nomacro
	j	$L57
	sb	$2,6($4)
	.set	macro
	.set	reorder

	.end	mp_unescape03
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC3:
	.ascii	"Detected unknown aspect_ratio_information in mpeg sequen"
	.ascii	"ce header.\012Please report the aspect value (%i) along "
	.ascii	"with the movie type (VGA,PAL,NTSC,SECAM) and the movie r"
	.ascii	"esolution (720x576,352x240,480x480,...) to the MPlayer d"
	.ascii	"evelopers, so that we can add support for it!\012Assumin"
	.ascii	"g 1:1 aspect for now.\012\000"
	.section	.rodata.cst4,"aM",@progbits,4
	.align	2
$LC0:
	.word	1074622628
	.align	2
$LC1:
	.word	1068149419
	.align	2
$LC2:
	.word	1071877689
	.section	.text.mpeg12_aspect_info,"ax",@progbits
	.align	2
	.align	5
	.globl	mpeg12_aspect_info
	.ent	mpeg12_aspect_info
	.type	mpeg12_aspect_info, @function
mpeg12_aspect_info:
	.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
	sw	$31,16($sp)
	lw	$7,12($4)
	sltu	$2,$7,13
	beq	$2,$0,$L87
	lui	$6,%hi($LC3)

	lui	$3,%hi($L83)
	sll	$2,$7,2
	addiu	$3,$3,%lo($L83)
	addu	$2,$2,$3
	lw	$4,0($2)
	j	$4
	nop

	.rdata
	.align	2
	.align	2
$L83:
	.word	$L78
	.word	$L86
	.word	$L80
	.word	$L81
	.word	$L82
	.word	$L78
	.word	$L81
	.word	$L78
	.word	$L80
	.word	$L86
	.word	$L78
	.word	$L78
	.word	$L80
	.section	.text.mpeg12_aspect_info
$L78:
	lui	$6,%hi($LC3)
$L87:
	addiu	$6,$6,%lo($LC3)
	li	$4,13			# 0xd
	jal	mp_msg
	li	$5,1			# 0x1

$L86:
	lw	$31,16($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,24

$L82:
	lui	$2,%hi($LC0)
	lw	$2,%lo($LC0)($2)
	lw	$31,16($sp)
	j	$31
	addiu	$sp,$sp,24

$L80:
	lui	$2,%hi($LC1)
	lw	$2,%lo($LC1)($2)
	lw	$31,16($sp)
	j	$31
	addiu	$sp,$sp,24

$L81:
	lui	$2,%hi($LC2)
	lw	$2,%lo($LC2)($2)
	lw	$31,16($sp)
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	mpeg12_aspect_info
	.globl	__floatsisf
	.globl	__addsf3
	.globl	__divsf3
	.section	.text.mp4_header_process_vol,"ax",@progbits
	.align	2
	.align	5
	.globl	mp4_header_process_vol
	.ent	mp4_header_process_vol
	.type	mp4_header_process_vol, @function
mp4_header_process_vol:
	.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
	move	$2,$0
	sw	$18,24($sp)
	sw	$31,28($sp)
	sw	$17,20($sp)
	sw	$16,16($sp)
	sw	$2,20($4)
	sw	$0,60($4)
	sw	$0,52($4)
	sw	$0,56($4)
	lbu	$2,1($5)
	move	$18,$4
	srl	$2,$2,6
	andi	$2,$2,0x1
	move	$11,$5
	bne	$2,$0,$L89
	addiu	$3,$5,1

	li	$6,2			# 0x2
	li	$4,14			# 0xe
$L91:
	lbu	$2,0($3)
	addiu	$3,$4,16
	sll	$2,$2,$6
	andi	$2,$2,0x00ff
	srl	$2,$2,4
	xori	$2,$2,0xf
	movz	$4,$3,$2
	andi	$6,$4,0x7
	li	$2,8			# 0x8
	bne	$6,$2,$L94
	srl	$3,$4,3

	addu	$2,$11,$3
	lbu	$3,1($2)
	srl	$2,$3,7
	beq	$2,$0,$L157
	addiu	$2,$4,1

$L154:
	addiu	$4,$4,4
	andi	$6,$4,0x7
	li	$2,8			# 0x8
	bne	$6,$2,$L99
	srl	$3,$4,3

	addu	$2,$11,$3
	lbu	$3,1($2)
	srl	$3,$3,7
$L101:
	addiu	$2,$4,79
	movn	$4,$2,$3
	addiu	$2,$4,1
	addiu	$7,$2,3
	andi	$4,$7,0x7
	li	$8,8			# 0x8
	subu	$2,$8,$4
	andi	$6,$2,0x00ff
	sltu	$3,$6,8
	bne	$3,$0,$L151
	srl	$2,$7,3

$L105:
	addu	$3,$11,$2
	lbu	$2,0($3)
	sll	$2,$2,$4
	andi	$6,$2,0x00ff
$L107:
	addiu	$8,$7,8
	andi	$4,$8,0x7
	li	$9,8			# 0x8
	subu	$2,$9,$4
	andi	$7,$2,0x00ff
	sll	$10,$6,8
	sltu	$2,$7,8
	sw	$10,52($18)
	beq	$2,$0,$L109
	srl	$3,$8,3

$L155:
	addu	$6,$11,$3
	lbu	$2,0($6)
	subu	$3,$9,$7
	sll	$2,$2,$4
	andi	$3,$3,0x00ff
	bne	$3,$0,$L152
	andi	$4,$2,0x00ff

$L111:
	or	$2,$10,$4
	addiu	$4,$2,-1
	sw	$2,52($18)
	beq	$4,$0,$L113
	sw	$0,56($18)

	move	$2,$0
$L115:
	srl	$4,$4,1
	bne	$4,$0,$L115
	addiu	$2,$2,1

	sw	$2,56($18)
$L113:
	lw	$2,56($18)
	addiu	$4,$8,9
	li	$7,1			# 0x1
	movn	$7,$2,$2
	andi	$6,$4,0x7
	li	$2,8			# 0x8
	sw	$7,56($18)
	bne	$6,$2,$L117
	srl	$3,$4,3

	addu	$2,$11,$3
	lbu	$3,1($2)
	srl	$2,$3,7
$L119:
	beq	$2,$0,$L120
	sltu	$2,$7,9

	beq	$2,$0,$L153
	addiu	$8,$4,1

	andi	$9,$8,0x7
	li	$2,8			# 0x8
	subu	$2,$2,$9
	andi	$4,$7,0x00ff
	andi	$2,$2,0x00ff
	sltu	$3,$2,$4
	bne	$3,$0,$L136
	srl	$5,$8,3

	move	$7,$0
$L138:
	addu	$6,$11,$5
	lbu	$2,0($6)
	sltu	$3,$4,8
	sll	$2,$2,$9
	beq	$3,$0,$L139
	andi	$5,$2,0x00ff

	li	$2,8			# 0x8
	subu	$2,$2,$4
	sra	$2,$5,$2
	andi	$5,$2,0x00ff
$L139:
	beq	$7,$0,$L141
	li	$2,8			# 0x8

	lbu	$3,1($6)
	subu	$2,$2,$7
	sra	$3,$3,$2
	or	$3,$3,$5
	andi	$5,$3,0x00ff
$L141:
	sw	$5,60($18)
	move	$16,$5
$L135:
	beq	$16,$0,$L158
	lw	$31,28($sp)

	lw	$4,52($18)
	bltz	$4,$L145
	srl	$2,$4,1

	jal	__floatsisf
	nop

	move	$17,$2
$L144:
	bltz	$16,$L147
	srl	$2,$16,1

	jal	__floatsisf
	move	$4,$16

	move	$4,$17
$L156:
	jal	__divsf3
	move	$5,$2

	sw	$2,20($18)
$L120:
	lw	$31,28($sp)
$L158:
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,32

$L94:
	addu	$3,$11,$3
	lbu	$2,0($3)
	sll	$2,$2,$6
	andi	$2,$2,0x00ff
	srl	$2,$2,7
	bne	$2,$0,$L154
	addiu	$2,$4,1

$L157:
	addiu	$7,$2,3
	andi	$4,$7,0x7
	li	$8,8			# 0x8
	subu	$2,$8,$4
	andi	$6,$2,0x00ff
	sltu	$3,$6,8
	beq	$3,$0,$L105
	srl	$2,$7,3

$L151:
	addu	$9,$11,$2
	lbu	$2,0($9)
	subu	$3,$8,$6
	sll	$2,$2,$4
	andi	$3,$3,0x00ff
	beq	$3,$0,$L107
	andi	$6,$2,0x00ff

	lbu	$2,1($9)
	subu	$3,$8,$3
	sra	$2,$2,$3
	addiu	$8,$7,8
	or	$2,$2,$6
	andi	$4,$8,0x7
	li	$9,8			# 0x8
	andi	$6,$2,0x00ff
	subu	$2,$9,$4
	andi	$7,$2,0x00ff
	sll	$10,$6,8
	sltu	$2,$7,8
	sw	$10,52($18)
	bne	$2,$0,$L155
	srl	$3,$8,3

$L109:
	addu	$3,$11,$3
	lbu	$2,0($3)
	sll	$2,$2,$4
	j	$L111
	andi	$4,$2,0x00ff

$L89:
	addiu	$3,$5,2
	li	$6,1			# 0x1
	j	$L91
	li	$4,21			# 0x15

$L117:
	addu	$3,$11,$3
	lbu	$2,0($3)
	sll	$2,$2,$6
	andi	$2,$2,0x00ff
	j	$L119
	srl	$2,$2,7

$L153:
	andi	$9,$8,0x7
	li	$2,8			# 0x8
	addiu	$3,$7,-8
	subu	$2,$2,$9
	andi	$4,$3,0x00ff
	andi	$2,$2,0x00ff
	sltu	$3,$2,$4
	bne	$3,$0,$L124
	srl	$6,$8,3

	move	$10,$0
$L126:
	addu	$5,$11,$6
	lbu	$2,0($5)
	sltu	$3,$4,8
	sll	$2,$2,$9
	beq	$3,$0,$L127
	andi	$6,$2,0x00ff